git.sesse.net Git - ffmpeg/blob - libavformat/mxfenc.c

   1 /*
   2  * MXF muxer
   3  * Copyright (c) 2008 GUCAS, Zhentan Feng <spyfeng at gmail dot com>
   4  * Copyright (c) 2008 Baptiste Coudurier <baptiste dot coudurier at gmail dot com>
   5  *
   6  * This file is part of FFmpeg.
   7  *
   8  * FFmpeg is free software; you can redistribute it and/or
   9  * modify it under the terms of the GNU Lesser General Public
  10  * License as published by the Free Software Foundation; either
  11  * version 2.1 of the License, or (at your option) any later version.
  12  *
  13  * FFmpeg is distributed in the hope that it will be useful,
  14  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  15  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  16  * Lesser General Public License for more details.
  17  *
  18  * You should have received a copy of the GNU Lesser General Public
  19  * License along with FFmpeg; if not, write to the Free Software
  20  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
  21  */
  22
  23 /*
  24  * signal_standard, color_siting, store_user_comments, sample rate and klv_fill_key version
  25  * fixes sponsored by NOA GmbH
  26  */
  27
  28 /*
  29  * References
  30  * SMPTE 336M KLV Data Encoding Protocol Using Key-Length-Value
  31  * SMPTE 377M MXF File Format Specifications
  32  * SMPTE 379M MXF Generic Container
  33  * SMPTE 381M Mapping MPEG Streams into the MXF Generic Container
  34  * SMPTE 422M Mapping JPEG 2000 Codestreams into the MXF Generic Container
  35  * SMPTE RP210: SMPTE Metadata Dictionary
  36  * SMPTE RP224: Registry of SMPTE Universal Labels
  37  */
  38
  39 #include <inttypes.h>
  40 #include <math.h>
  41 #include <time.h>
  42
  43 #include "libavutil/opt.h"
  44 #include "libavutil/random_seed.h"
  45 #include "libavutil/timecode.h"
  46 #include "libavutil/avassert.h"
  47 #include "libavutil/pixdesc.h"
  48 #include "libavutil/time_internal.h"
  49 #include "libavcodec/bytestream.h"
  50 #include "libavcodec/dnxhddata.h"
  51 #include "libavcodec/dv_profile.h"
  52 #include "libavcodec/h264_ps.h"
  53 #include "libavcodec/golomb.h"
  54 #include "libavcodec/internal.h"
  55 #include "avformat.h"
  56 #include "avio_internal.h"
  57 #include "internal.h"
  58 #include "avc.h"
  59 #include "mxf.h"
  60 #include "config.h"
  61
  62 extern AVOutputFormat ff_mxf_d10_muxer;
  63 extern AVOutputFormat ff_mxf_opatom_muxer;
  64
  65 #define EDIT_UNITS_PER_BODY 250
  66 #define KAG_SIZE 512
  67
  68 typedef struct MXFLocalTagPair {
  69     int local_tag;
  70     UID uid;
  71 } MXFLocalTagPair;
  72
  73 typedef struct MXFIndexEntry {
  74     uint64_t offset;
  75     unsigned slice_offset; ///< offset of audio slice
  76     uint16_t temporal_ref;
  77     uint8_t flags;
  78 } MXFIndexEntry;
  79
  80 typedef struct MXFStreamContext {
  81     int64_t pkt_cnt;         ///< pkt counter for muxed packets
  82     UID track_essence_element_key;
  83     int index;               ///< index in mxf_essence_container_uls table
  84     const UID *codec_ul;
  85     const UID *container_ul;
  86     int order;               ///< interleaving order if dts are equal
  87     int interlaced;          ///< whether picture is interlaced
  88     int field_dominance;     ///< tff=1, bff=2
  89     int component_depth;
  90     int color_siting;
  91     int signal_standard;
  92     int h_chroma_sub_sample;
  93     int v_chroma_sub_sample;
  94     int temporal_reordering;
  95     AVRational aspect_ratio; ///< display aspect ratio
  96     int closed_gop;          ///< gop is closed, used in mpeg-2 frame parsing
  97     int video_bit_rate;
  98     int slice_offset;
  99     int frame_size;          ///< frame size in bytes
 100     int seq_closed_gop;      ///< all gops in sequence are closed, used in mpeg-2 descriptor
 101     int max_gop;             ///< maximum gop size, used by mpeg-2 descriptor
 102     int b_picture_count;     ///< maximum number of consecutive b pictures, used in mpeg-2 descriptor
 103     int low_delay;           ///< low delay, used in mpeg-2 descriptor
 104     int avc_intra;
 105 } MXFStreamContext;
 106
 107 typedef struct MXFContainerEssenceEntry {
 108     UID container_ul;
 109     UID element_ul;
 110     UID codec_ul;
 111     void (*write_desc)(AVFormatContext *, AVStream *);
 112 } MXFContainerEssenceEntry;
 113
 114 typedef struct MXFPackage {
 115     char *name;
 116     enum MXFMetadataSetType type;
 117     int instance;
 118     struct MXFPackage *ref;
 119 } MXFPackage;
 120
 121 enum ULIndex {
 122     INDEX_MPEG2 = 0,
 123     INDEX_AES3,
 124     INDEX_WAV,
 125     INDEX_D10_VIDEO,
 126     INDEX_D10_AUDIO,
 127     INDEX_DV,
 128     INDEX_DNXHD,
 129     INDEX_JPEG2000,
 130     INDEX_H264,
 131     INDEX_S436M,
 132     INDEX_PRORES,
 133 };
 134
 135 static const struct {
 136     enum AVCodecID id;
 137     enum ULIndex index;
 138 } mxf_essence_mappings[] = {
 139     { AV_CODEC_ID_MPEG2VIDEO, INDEX_MPEG2 },
 140     { AV_CODEC_ID_PCM_S24LE,  INDEX_AES3 },
 141     { AV_CODEC_ID_PCM_S16LE,  INDEX_AES3 },
 142     { AV_CODEC_ID_DVVIDEO,    INDEX_DV },
 143     { AV_CODEC_ID_DNXHD,      INDEX_DNXHD },
 144     { AV_CODEC_ID_JPEG2000,   INDEX_JPEG2000 },
 145     { AV_CODEC_ID_H264,       INDEX_H264 },
 146     { AV_CODEC_ID_PRORES,     INDEX_PRORES },
 147     { AV_CODEC_ID_NONE }
 148 };
 149
 150 static void mxf_write_wav_desc(AVFormatContext *s, AVStream *st);
 151 static void mxf_write_aes3_desc(AVFormatContext *s, AVStream *st);
 152 static void mxf_write_mpegvideo_desc(AVFormatContext *s, AVStream *st);
 153 static void mxf_write_h264_desc(AVFormatContext *s, AVStream *st);
 154 static void mxf_write_cdci_desc(AVFormatContext *s, AVStream *st);
 155 static void mxf_write_generic_sound_desc(AVFormatContext *s, AVStream *st);
 156 static void mxf_write_s436m_anc_desc(AVFormatContext *s, AVStream *st);
 157
 158 static const MXFContainerEssenceEntry mxf_essence_container_uls[] = {
 159     { { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x02,0x0D,0x01,0x03,0x01,0x02,0x04,0x60,0x01 },
 160       { 0x06,0x0E,0x2B,0x34,0x01,0x02,0x01,0x01,0x0D,0x01,0x03,0x01,0x15,0x01,0x05,0x00 },
 161       { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x03,0x04,0x01,0x02,0x02,0x01,0x00,0x00,0x00 },
 162       mxf_write_mpegvideo_desc },
 163     { { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x0D,0x01,0x03,0x01,0x02,0x06,0x03,0x00 },
 164       { 0x06,0x0E,0x2B,0x34,0x01,0x02,0x01,0x01,0x0D,0x01,0x03,0x01,0x16,0x01,0x03,0x00 },
 165       { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x04,0x02,0x02,0x01,0x00,0x00,0x00,0x00 },
 166       mxf_write_aes3_desc },
 167     { { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x0D,0x01,0x03,0x01,0x02,0x06,0x01,0x00 },
 168       { 0x06,0x0E,0x2B,0x34,0x01,0x02,0x01,0x01,0x0D,0x01,0x03,0x01,0x16,0x01,0x01,0x00 },
 169       { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x04,0x02,0x02,0x01,0x00,0x00,0x00,0x00 },
 170       mxf_write_wav_desc },
 171     // D-10 Video
 172     { { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x0D,0x01,0x03,0x01,0x02,0x01,0x01,0x01 },
 173       { 0x06,0x0E,0x2B,0x34,0x01,0x02,0x01,0x01,0x0D,0x01,0x03,0x01,0x05,0x01,0x01,0x00 },
 174       { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x04,0x01,0x02,0x02,0x01,0x02,0x01,0x01 },
 175       mxf_write_cdci_desc },
 176     // D-10 Audio
 177     { { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x0D,0x01,0x03,0x01,0x02,0x01,0x01,0x01 },
 178       { 0x06,0x0E,0x2B,0x34,0x01,0x02,0x01,0x01,0x0D,0x01,0x03,0x01,0x06,0x01,0x10,0x00 },
 179       { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x04,0x02,0x02,0x01,0x00,0x00,0x00,0x00 },
 180       mxf_write_generic_sound_desc },
 181     // DV
 182     { { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x0D,0x01,0x03,0x01,0x02,0x02,0x7F,0x01 },
 183       { 0x06,0x0E,0x2B,0x34,0x01,0x02,0x01,0x01,0x0D,0x01,0x03,0x01,0x18,0x01,0x01,0x00 },
 184       { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x04,0x01,0x02,0x02,0x02,0x00,0x00,0x00 },
 185       mxf_write_cdci_desc },
 186     // DNxHD
 187     { { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x0D,0x01,0x03,0x01,0x02,0x11,0x01,0x00 },
 188       { 0x06,0x0E,0x2B,0x34,0x01,0x02,0x01,0x01,0x0D,0x01,0x03,0x01,0x15,0x01,0x05,0x00 },
 189       { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x0A,0x04,0x01,0x02,0x02,0x71,0x01,0x00,0x00 },
 190       mxf_write_cdci_desc },
 191     // JPEG2000
 192     { { 0x06,0x0e,0x2b,0x34,0x04,0x01,0x01,0x07,0x0d,0x01,0x03,0x01,0x02,0x0c,0x01,0x00 },
 193       { 0x06,0x0e,0x2b,0x34,0x01,0x02,0x01,0x01,0x0d,0x01,0x03,0x01,0x15,0x01,0x08,0x00 },
 194       { 0x06,0x0e,0x2b,0x34,0x04,0x01,0x01,0x07,0x04,0x01,0x02,0x02,0x03,0x01,0x01,0x00 },
 195       mxf_write_cdci_desc },
 196     // H.264
 197     { { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x0a,0x0D,0x01,0x03,0x01,0x02,0x10,0x60,0x01 },
 198       { 0x06,0x0E,0x2B,0x34,0x01,0x02,0x01,0x01,0x0D,0x01,0x03,0x01,0x15,0x01,0x05,0x00 },
 199       { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x0a,0x04,0x01,0x02,0x02,0x01,0x00,0x00,0x00 },
 200       mxf_write_h264_desc },
 201     // S436M ANC
 202     { { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x0a,0x0D,0x01,0x03,0x01,0x02,0x0e,0x00,0x00 },
 203       { 0x06,0x0E,0x2B,0x34,0x01,0x02,0x01,0x01,0x0D,0x01,0x03,0x01,0x17,0x01,0x02,0x00 },
 204       { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x0a,0x04,0x01,0x02,0x02,0x01,0x01,0x5C,0x00 },
 205       mxf_write_s436m_anc_desc },
 206     // ProRes
 207     { { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x0d,0x0d,0x01,0x03,0x01,0x02,0x1c,0x01,0x00 },
 208       { 0x06,0x0E,0x2B,0x34,0x01,0x02,0x01,0x01,0x0d,0x01,0x03,0x01,0x15,0x01,0x17,0x00 },
 209       { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x0d,0x04,0x01,0x02,0x02,0x03,0x06,0x03,0x00 },
 210       mxf_write_cdci_desc },
 211     { { 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00 },
 212       { 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00 },
 213       { 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00 },
 214       NULL },
 215 };
 216
 217 static const UID mxf_d10_codec_uls[] = {
 218     { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x04,0x01,0x02,0x02,0x01,0x02,0x01,0x01 }, // D-10 625/50 PAL 50mb/s
 219     { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x04,0x01,0x02,0x02,0x01,0x02,0x01,0x02 }, // D-10 525/50 NTSC 50mb/s
 220     { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x04,0x01,0x02,0x02,0x01,0x02,0x01,0x03 }, // D-10 625/50 PAL 40mb/s
 221     { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x04,0x01,0x02,0x02,0x01,0x02,0x01,0x04 }, // D-10 525/50 NTSC 40mb/s
 222     { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x04,0x01,0x02,0x02,0x01,0x02,0x01,0x05 }, // D-10 625/50 PAL 30mb/s
 223     { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x04,0x01,0x02,0x02,0x01,0x02,0x01,0x06 }, // D-10 525/50 NTSC 30mb/s
 224 };
 225
 226 static const UID mxf_d10_container_uls[] = {
 227     { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x0D,0x01,0x03,0x01,0x02,0x01,0x01,0x01 }, // D-10 625/50 PAL 50mb/s
 228     { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x0D,0x01,0x03,0x01,0x02,0x01,0x02,0x01 }, // D-10 525/50 NTSC 50mb/s
 229     { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x0D,0x01,0x03,0x01,0x02,0x01,0x03,0x01 }, // D-10 625/50 PAL 40mb/s
 230     { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x0D,0x01,0x03,0x01,0x02,0x01,0x04,0x01 }, // D-10 525/50 NTSC 40mb/s
 231     { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x0D,0x01,0x03,0x01,0x02,0x01,0x05,0x01 }, // D-10 625/50 PAL 30mb/s
 232     { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x0D,0x01,0x03,0x01,0x02,0x01,0x06,0x01 }, // D-10 525/50 NTSC 30mb/s
 233 };
 234
 235 typedef struct MXFContext {
 236     AVClass *av_class;
 237     int64_t footer_partition_offset;
 238     int essence_container_count;
 239     AVRational time_base;
 240     int header_written;
 241     MXFIndexEntry *index_entries;
 242     unsigned edit_units_count;
 243     uint64_t timestamp;   ///< timestamp, as year(16),month(8),day(8),hour(8),minutes(8),msec/4(8)
 244     uint8_t slice_count;  ///< index slice count minus 1 (1 if no audio, 0 otherwise)
 245     int last_indexed_edit_unit;
 246     uint64_t *body_partition_offset;
 247     unsigned body_partitions_count;
 248     int last_key_index;  ///< index of last key frame
 249     uint64_t duration;
 250     AVTimecode tc;       ///< timecode context
 251     AVStream *timecode_track;
 252     int timecode_base;       ///< rounded time code base (25 or 30)
 253     int edit_unit_byte_count; ///< fixed edit unit byte count
 254     int content_package_rate; ///< content package rate in system element, see SMPTE 326M
 255     uint64_t body_offset;
 256     uint32_t instance_number;
 257     uint8_t umid[16];        ///< unique material identifier
 258     int channel_count;
 259     int signal_standard;
 260     uint32_t tagged_value_count;
 261     AVRational audio_edit_rate;
 262     int store_user_comments;
 263     int track_instance_count; // used to generate MXFTrack uuids
 264     int cbr_index;           ///< use a constant bitrate index
 265 } MXFContext;
 266
 267 static const uint8_t uuid_base[]            = { 0xAD,0xAB,0x44,0x24,0x2f,0x25,0x4d,0xc7,0x92,0xff,0x29,0xbd };
 268 static const uint8_t umid_ul[]              = { 0x06,0x0A,0x2B,0x34,0x01,0x01,0x01,0x05,0x01,0x01,0x0D,0x00,0x13 };
 269
 270 /**
 271  * complete key for operation pattern, partitions, and primer pack
 272  */
 273 static const uint8_t op1a_ul[]                     = { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x0D,0x01,0x02,0x01,0x01,0x01,0x09,0x00 };
 274 static const uint8_t opatom_ul[]                   = { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x02,0x0D,0x01,0x02,0x01,0x10,0x03,0x00,0x00 };
 275 static const uint8_t footer_partition_key[]        = { 0x06,0x0E,0x2B,0x34,0x02,0x05,0x01,0x01,0x0D,0x01,0x02,0x01,0x01,0x04,0x04,0x00 }; // ClosedComplete
 276 static const uint8_t primer_pack_key[]             = { 0x06,0x0E,0x2B,0x34,0x02,0x05,0x01,0x01,0x0D,0x01,0x02,0x01,0x01,0x05,0x01,0x00 };
 277 static const uint8_t index_table_segment_key[]     = { 0x06,0x0E,0x2B,0x34,0x02,0x53,0x01,0x01,0x0d,0x01,0x02,0x01,0x01,0x10,0x01,0x00 };
 278 static const uint8_t random_index_pack_key[]       = { 0x06,0x0E,0x2B,0x34,0x02,0x05,0x01,0x01,0x0D,0x01,0x02,0x01,0x01,0x11,0x01,0x00 };
 279 static const uint8_t header_open_partition_key[]   = { 0x06,0x0E,0x2B,0x34,0x02,0x05,0x01,0x01,0x0D,0x01,0x02,0x01,0x01,0x02,0x01,0x00 }; // OpenIncomplete
 280 static const uint8_t header_closed_partition_key[] = { 0x06,0x0E,0x2B,0x34,0x02,0x05,0x01,0x01,0x0D,0x01,0x02,0x01,0x01,0x02,0x04,0x00 }; // ClosedComplete
 281 static const uint8_t klv_fill_key[]                = { 0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x03,0x01,0x02,0x10,0x01,0x00,0x00,0x00 };
 282 static const uint8_t body_partition_key[]          = { 0x06,0x0E,0x2B,0x34,0x02,0x05,0x01,0x01,0x0D,0x01,0x02,0x01,0x01,0x03,0x04,0x00 }; // ClosedComplete
 283
 284 /**
 285  * partial key for header metadata
 286  */
 287 static const uint8_t header_metadata_key[]  = { 0x06,0x0E,0x2B,0x34,0x02,0x53,0x01,0x01,0x0D,0x01,0x01,0x01,0x01 };
 288 static const uint8_t multiple_desc_ul[]     = { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x03,0x0D,0x01,0x03,0x01,0x02,0x7F,0x01,0x00 };
 289
 290 /**
 291  * SMPTE RP210 http://www.smpte-ra.org/mdd/index.html
 292  *             https://smpte-ra.org/sites/default/files/Labels.xml
 293  */
 294 static const MXFLocalTagPair mxf_local_tag_batch[] = {
 295     // preface set
 296     { 0x3C0A, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x01,0x01,0x01,0x15,0x02,0x00,0x00,0x00,0x00}}, /* Instance UID */
 297     { 0x3B02, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x07,0x02,0x01,0x10,0x02,0x04,0x00,0x00}}, /* Last Modified Date */
 298     { 0x3B05, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x03,0x01,0x02,0x01,0x05,0x00,0x00,0x00}}, /* Version */
 299     { 0x3B07, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x03,0x01,0x02,0x01,0x04,0x00,0x00,0x00}}, /* Object Model Version */
 300     { 0x3B06, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x06,0x01,0x01,0x04,0x06,0x04,0x00,0x00}}, /* Identifications reference */
 301     { 0x3B03, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x06,0x01,0x01,0x04,0x02,0x01,0x00,0x00}}, /* Content Storage reference */
 302     { 0x3B09, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x05,0x01,0x02,0x02,0x03,0x00,0x00,0x00,0x00}}, /* Operational Pattern UL */
 303     { 0x3B0A, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x05,0x01,0x02,0x02,0x10,0x02,0x01,0x00,0x00}}, /* Essence Containers UL batch */
 304     { 0x3B0B, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x05,0x01,0x02,0x02,0x10,0x02,0x02,0x00,0x00}}, /* DM Schemes UL batch */
 305     // Identification
 306     { 0x3C09, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x05,0x20,0x07,0x01,0x01,0x00,0x00,0x00}}, /* This Generation UID */
 307     { 0x3C01, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x05,0x20,0x07,0x01,0x02,0x01,0x00,0x00}}, /* Company Name */
 308     { 0x3C02, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x05,0x20,0x07,0x01,0x03,0x01,0x00,0x00}}, /* Product Name */
 309     { 0x3C03, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x05,0x20,0x07,0x01,0x04,0x00,0x00,0x00}}, /* Product Version */
 310     { 0x3C04, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x05,0x20,0x07,0x01,0x05,0x01,0x00,0x00}}, /* Version String */
 311     { 0x3C05, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x05,0x20,0x07,0x01,0x07,0x00,0x00,0x00}}, /* Product ID */
 312     { 0x3C06, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x07,0x02,0x01,0x10,0x02,0x03,0x00,0x00}}, /* Modification Date */
 313     { 0x3C07, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x05,0x20,0x07,0x01,0x0A,0x00,0x00,0x00}}, /* Toolkit Version */
 314     { 0x3C08, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x05,0x20,0x07,0x01,0x06,0x01,0x00,0x00}}, /* Platform */
 315     // Content Storage
 316     { 0x1901, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x06,0x01,0x01,0x04,0x05,0x01,0x00,0x00}}, /* Package strong reference batch */
 317     { 0x1902, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x06,0x01,0x01,0x04,0x05,0x02,0x00,0x00}}, /* Package strong reference batch */
 318     // Essence Container Data
 319     { 0x2701, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x06,0x01,0x01,0x06,0x01,0x00,0x00,0x00}}, /* Linked Package UID */
 320     { 0x3F07, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x04,0x01,0x03,0x04,0x04,0x00,0x00,0x00,0x00}}, /* BodySID */
 321     // Package
 322     { 0x4401, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x01,0x01,0x01,0x15,0x10,0x00,0x00,0x00,0x00}}, /* Package UID */
 323     { 0x4405, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x07,0x02,0x01,0x10,0x01,0x03,0x00,0x00}}, /* Package Creation Date */
 324     { 0x4404, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x07,0x02,0x01,0x10,0x02,0x05,0x00,0x00}}, /* Package Modified Date */
 325     { 0x4402, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x01,0x01,0x03,0x03,0x02,0x01,0x00,0x00,0x00}}, /* Package Name */
 326     { 0x4403, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x06,0x01,0x01,0x04,0x06,0x05,0x00,0x00}}, /* Tracks Strong reference array */
 327     { 0x4701, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x06,0x01,0x01,0x04,0x02,0x03,0x00,0x00}}, /* Descriptor */
 328     // Track
 329     { 0x4801, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x01,0x07,0x01,0x01,0x00,0x00,0x00,0x00}}, /* Track ID */
 330     { 0x4804, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x01,0x04,0x01,0x03,0x00,0x00,0x00,0x00}}, /* Track Number */
 331     { 0x4B01, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x05,0x30,0x04,0x05,0x00,0x00,0x00,0x00}}, /* Edit Rate */
 332     { 0x4B02, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x07,0x02,0x01,0x03,0x01,0x03,0x00,0x00}}, /* Origin */
 333     { 0x4803, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x06,0x01,0x01,0x04,0x02,0x04,0x00,0x00}}, /* Sequence reference */
 334     // Sequence
 335     { 0x0201, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x04,0x07,0x01,0x00,0x00,0x00,0x00,0x00}}, /* Data Definition UL */
 336     { 0x0202, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x07,0x02,0x02,0x01,0x01,0x03,0x00,0x00}}, /* Duration */
 337     { 0x1001, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x06,0x01,0x01,0x04,0x06,0x09,0x00,0x00}}, /* Structural Components reference array */
 338     // Source Clip
 339     { 0x1201, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x07,0x02,0x01,0x03,0x01,0x04,0x00,0x00}}, /* Start position */
 340     { 0x1101, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x06,0x01,0x01,0x03,0x01,0x00,0x00,0x00}}, /* SourcePackageID */
 341     { 0x1102, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x06,0x01,0x01,0x03,0x02,0x00,0x00,0x00}}, /* SourceTrackID */
 342     // Timecode Component
 343     { 0x1501, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x07,0x02,0x01,0x03,0x01,0x05,0x00,0x00}}, /* Start Time Code */
 344     { 0x1502, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x04,0x04,0x01,0x01,0x02,0x06,0x00,0x00}}, /* Rounded Time Code Base */
 345     { 0x1503, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x01,0x04,0x04,0x01,0x01,0x05,0x00,0x00,0x00}}, /* Drop Frame */
 346     // File Descriptor
 347     { 0x3F01, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x04,0x06,0x01,0x01,0x04,0x06,0x0B,0x00,0x00}}, /* Sub Descriptors reference array */
 348     { 0x3006, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x05,0x06,0x01,0x01,0x03,0x05,0x00,0x00,0x00}}, /* Linked Track ID */
 349     { 0x3001, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x01,0x04,0x06,0x01,0x01,0x00,0x00,0x00,0x00}}, /* SampleRate */
 350     { 0x3002, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x01,0x04,0x06,0x01,0x02,0x00,0x00,0x00,0x00}}, /* ContainerDuration */
 351     { 0x3004, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x06,0x01,0x01,0x04,0x01,0x02,0x00,0x00}}, /* Essence Container */
 352     // Generic Picture Essence Descriptor
 353     { 0x320C, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x01,0x04,0x01,0x03,0x01,0x04,0x00,0x00,0x00}}, /* Frame Layout */
 354     { 0x320D, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x04,0x01,0x03,0x02,0x05,0x00,0x00,0x00}}, /* Video Line Map */
 355     { 0x3203, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x01,0x04,0x01,0x05,0x02,0x02,0x00,0x00,0x00}}, /* Stored Width */
 356     { 0x3202, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x01,0x04,0x01,0x05,0x02,0x01,0x00,0x00,0x00}}, /* Stored Height */
 357     { 0x3216, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x05,0x04,0x01,0x03,0x02,0x08,0x00,0x00,0x00}}, /* Stored F2 Offset */
 358     { 0x3205, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x01,0x04,0x01,0x05,0x01,0x08,0x00,0x00,0x00}}, /* Sampled Width */
 359     { 0x3204, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x01,0x04,0x01,0x05,0x01,0x07,0x00,0x00,0x00}}, /* Sampled Height */
 360     { 0x3206, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x01,0x04,0x01,0x05,0x01,0x09,0x00,0x00,0x00}}, /* Sampled X Offset */
 361     { 0x3207, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x01,0x04,0x01,0x05,0x01,0x0A,0x00,0x00,0x00}}, /* Sampled Y Offset */
 362     { 0x3209, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x01,0x04,0x01,0x05,0x01,0x0C,0x00,0x00,0x00}}, /* Display Width */
 363     { 0x3208, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x01,0x04,0x01,0x05,0x01,0x0B,0x00,0x00,0x00}}, /* Display Height */
 364     { 0x320A, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x01,0x04,0x01,0x05,0x01,0x0D,0x00,0x00,0x00}}, /* Display X offset */
 365     { 0x320B, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x01,0x04,0x01,0x05,0x01,0x0E,0x00,0x00,0x00}}, /* Presentation Y offset */
 366     { 0x3217, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x05,0x04,0x01,0x03,0x02,0x07,0x00,0x00,0x00}}, /* Display F2 offset */
 367     { 0x320E, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x01,0x04,0x01,0x01,0x01,0x01,0x00,0x00,0x00}}, /* Aspect Ratio */
 368     { 0x3210, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x04,0x01,0x02,0x01,0x01,0x01,0x02,0x00}}, /* Transfer characteristic */
 369     { 0x3213, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x04,0x18,0x01,0x02,0x00,0x00,0x00,0x00}}, /* Image Start Offset */
 370     { 0x3214, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x04,0x18,0x01,0x03,0x00,0x00,0x00,0x00}}, /* Image End Offset */
 371     { 0x3201, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x04,0x01,0x06,0x01,0x00,0x00,0x00,0x00}}, /* Picture Essence Coding */
 372     { 0x3212, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x04,0x01,0x03,0x01,0x06,0x00,0x00,0x00}}, /* Field Dominance (Opt) */
 373     { 0x3215, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x05,0x04,0x05,0x01,0x13,0x00,0x00,0x00,0x00}}, /* Signal Standard */
 374     // CDCI Picture Essence Descriptor
 375     { 0x3301, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x04,0x01,0x05,0x03,0x0A,0x00,0x00,0x00}}, /* Component Depth */
 376     { 0x3302, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x01,0x04,0x01,0x05,0x01,0x05,0x00,0x00,0x00}}, /* Horizontal Subsampling */
 377     { 0x3308, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x04,0x01,0x05,0x01,0x10,0x00,0x00,0x00}}, /* Vertical Subsampling */
 378     { 0x3303, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x01,0x04,0x01,0x05,0x01,0x06,0x00,0x00,0x00}}, /* Color Siting */
 379     { 0x3307, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x04,0x18,0x01,0x04,0x00,0x00,0x00,0x00}}, /* Padding Bits */
 380     { 0x3304, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x01,0x04,0x01,0x05,0x03,0x03,0x00,0x00,0x00}}, /* Black Ref level */
 381     { 0x3305, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x01,0x04,0x01,0x05,0x03,0x04,0x00,0x00,0x00}}, /* White Ref level */
 382     { 0x3306, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x04,0x01,0x05,0x03,0x05,0x00,0x00,0x00}}, /* Color Range */
 383     // Generic Sound Essence Descriptor
 384     { 0x3D02, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x04,0x04,0x02,0x03,0x01,0x04,0x00,0x00,0x00}}, /* Locked/Unlocked */
 385     { 0x3D03, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x05,0x04,0x02,0x03,0x01,0x01,0x01,0x00,0x00}}, /* Audio sampling rate */
 386     { 0x3D04, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x01,0x04,0x02,0x01,0x01,0x03,0x00,0x00,0x00}}, /* Audio Ref Level */
 387     { 0x3D07, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x05,0x04,0x02,0x01,0x01,0x04,0x00,0x00,0x00}}, /* ChannelCount */
 388     { 0x3D01, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x04,0x04,0x02,0x03,0x03,0x04,0x00,0x00,0x00}}, /* Quantization bits */
 389     { 0x3D06, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x04,0x02,0x04,0x02,0x00,0x00,0x00,0x00}}, /* Sound Essence Compression */
 390     // Index Table Segment
 391     { 0x3F0B, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x05,0x05,0x30,0x04,0x06,0x00,0x00,0x00,0x00}}, /* Index Edit Rate */
 392     { 0x3F0C, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x05,0x07,0x02,0x01,0x03,0x01,0x0A,0x00,0x00}}, /* Index Start Position */
 393     { 0x3F0D, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x05,0x07,0x02,0x02,0x01,0x01,0x02,0x00,0x00}}, /* Index Duration */
 394     { 0x3F05, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x04,0x04,0x06,0x02,0x01,0x00,0x00,0x00,0x00}}, /* Edit Unit Byte Count */
 395     { 0x3F06, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x04,0x01,0x03,0x04,0x05,0x00,0x00,0x00,0x00}}, /* IndexSID */
 396     { 0x3F08, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x04,0x04,0x04,0x04,0x01,0x01,0x00,0x00,0x00}}, /* Slice Count */
 397     { 0x3F09, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x05,0x04,0x04,0x04,0x01,0x06,0x00,0x00,0x00}}, /* Delta Entry Array */
 398     { 0x3F0A, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x05,0x04,0x04,0x04,0x02,0x05,0x00,0x00,0x00}}, /* Index Entry Array */
 399     // MPEG video Descriptor
 400     { 0x8000, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x05,0x04,0x01,0x06,0x02,0x01,0x0B,0x00,0x00}}, /* BitRate */
 401     { 0x8003, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x05,0x04,0x01,0x06,0x02,0x01,0x05,0x00,0x00}}, /* LowDelay */
 402     { 0x8004, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x05,0x04,0x01,0x06,0x02,0x01,0x06,0x00,0x00}}, /* ClosedGOP */
 403     { 0x8006, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x05,0x04,0x01,0x06,0x02,0x01,0x08,0x00,0x00}}, /* MaxGOP */
 404     { 0x8007, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x05,0x04,0x01,0x06,0x02,0x01,0x0A,0x00,0x00}}, /* ProfileAndLevel */
 405     { 0x8008, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x05,0x04,0x01,0x06,0x02,0x01,0x09,0x00,0x00}}, /* BPictureCount */
 406     // Wave Audio Essence Descriptor
 407     { 0x3D09, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x05,0x04,0x02,0x03,0x03,0x05,0x00,0x00,0x00}}, /* Average Bytes Per Second */
 408     { 0x3D0A, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x05,0x04,0x02,0x03,0x02,0x01,0x00,0x00,0x00}}, /* Block Align */
 409 };
 410
 411 static const MXFLocalTagPair mxf_avc_subdescriptor_local_tags[] = {
 412     { 0x8100, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x09,0x06,0x01,0x01,0x04,0x06,0x10,0x00,0x00}}, /* SubDescriptors */
 413     { 0x8200, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x0E,0x04,0x01,0x06,0x06,0x01,0x0E,0x00,0x00}}, /* AVC Decoding Delay */
 414     { 0x8201, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x0E,0x04,0x01,0x06,0x06,0x01,0x0A,0x00,0x00}}, /* AVC Profile */
 415     { 0x8202, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x0E,0x04,0x01,0x06,0x06,0x01,0x0D,0x00,0x00}}, /* AVC Level */
 416 };
 417
 418 static const MXFLocalTagPair mxf_user_comments_local_tag[] = {
 419     { 0x4406, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x03,0x02,0x01,0x02,0x0C,0x00,0x00,0x00}}, /* User Comments */
 420     { 0x5001, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x03,0x02,0x01,0x02,0x09,0x01,0x00,0x00}}, /* Name */
 421     { 0x5003, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x03,0x02,0x01,0x02,0x0A,0x01,0x00,0x00}}, /* Value */
 422 };
 423
 424 static void mxf_write_uuid(AVIOContext *pb, enum MXFMetadataSetType type, int value)
 425 {
 426     avio_write(pb, uuid_base, 12);
 427     avio_wb16(pb, type);
 428     avio_wb16(pb, value);
 429 }
 430
 431 static void mxf_write_umid(AVFormatContext *s, int type)
 432 {
 433     MXFContext *mxf = s->priv_data;
 434     avio_write(s->pb, umid_ul, 13);
 435     avio_wb24(s->pb, mxf->instance_number);
 436     avio_write(s->pb, mxf->umid, 15);
 437     avio_w8(s->pb, type);
 438 }
 439
 440 static void mxf_write_refs_count(AVIOContext *pb, int ref_count)
 441 {
 442     avio_wb32(pb, ref_count);
 443     avio_wb32(pb, 16);
 444 }
 445
 446 static int klv_ber_length(uint64_t len)
 447 {
 448     if (len < 128)
 449         return 1;
 450     else
 451         return (av_log2(len) >> 3) + 2;
 452 }
 453
 454 static int klv_encode_ber_length(AVIOContext *pb, uint64_t len)
 455 {
 456     // Determine the best BER size
 457     int size = klv_ber_length(len);
 458     if (size == 1) {
 459         //short form
 460         avio_w8(pb, len);
 461         return 1;
 462     }
 463
 464     size --;
 465     // long form
 466     avio_w8(pb, 0x80 + size);
 467     while(size) {
 468         size--;
 469         avio_w8(pb, len >> 8 * size & 0xff);
 470     }
 471     return 0;
 472 }
 473
 474 static void klv_encode_ber4_length(AVIOContext *pb, int len)
 475 {
 476     avio_w8(pb, 0x80 + 3);
 477     avio_wb24(pb, len);
 478 }
 479
 480 static void klv_encode_ber9_length(AVIOContext *pb, uint64_t len)
 481 {
 482     avio_w8(pb, 0x80 + 8);
 483     avio_wb64(pb, len);
 484 }
 485
 486 /*
 487  * Get essence container ul index
 488  */
 489 static int mxf_get_essence_container_ul_index(enum AVCodecID id)
 490 {
 491     int i;
 492     for (i = 0; mxf_essence_mappings[i].id; i++)
 493         if (mxf_essence_mappings[i].id == id)
 494             return mxf_essence_mappings[i].index;
 495     return -1;
 496 }
 497
 498 static void mxf_write_local_tags(AVIOContext *pb, const MXFLocalTagPair *local_tags, int count)
 499 {
 500     int i;
 501     for (i = 0; i < count; i++) {
 502         avio_wb16(pb, local_tags[i].local_tag);
 503         avio_write(pb, local_tags[i].uid, 16);
 504     }
 505 }
 506
 507 static void mxf_write_primer_pack(AVFormatContext *s)
 508 {
 509     MXFContext *mxf = s->priv_data;
 510     AVIOContext *pb = s->pb;
 511     int local_tag_number, i = 0;
 512     int avc_tags_count = 0;
 513
 514     local_tag_number = FF_ARRAY_ELEMS(mxf_local_tag_batch);
 515     local_tag_number += mxf->store_user_comments * FF_ARRAY_ELEMS(mxf_user_comments_local_tag);
 516
 517     for (i = 0; i < s->nb_streams; i++) {
 518         MXFStreamContext *sc = s->streams[i]->priv_data;
 519         if (s->streams[i]->codecpar->codec_id == AV_CODEC_ID_H264 && !sc->avc_intra) {
 520             avc_tags_count = FF_ARRAY_ELEMS(mxf_avc_subdescriptor_local_tags);
 521             local_tag_number += avc_tags_count;
 522         }
 523     }
 524
 525     avio_write(pb, primer_pack_key, 16);
 526     klv_encode_ber_length(pb, local_tag_number * 18 + 8);
 527
 528     avio_wb32(pb, local_tag_number); // local_tag num
 529     avio_wb32(pb, 18); // item size, always 18 according to the specs
 530
 531     for (i = 0; i < FF_ARRAY_ELEMS(mxf_local_tag_batch); i++) {
 532         avio_wb16(pb, mxf_local_tag_batch[i].local_tag);
 533         avio_write(pb, mxf_local_tag_batch[i].uid, 16);
 534     }
 535     if (mxf->store_user_comments)
 536         for (i = 0; i < FF_ARRAY_ELEMS(mxf_user_comments_local_tag); i++) {
 537             avio_wb16(pb, mxf_user_comments_local_tag[i].local_tag);
 538             avio_write(pb, mxf_user_comments_local_tag[i].uid, 16);
 539         }
 540     if (avc_tags_count > 0)
 541         mxf_write_local_tags(pb, mxf_avc_subdescriptor_local_tags, avc_tags_count);
 542 }
 543
 544 static void mxf_write_local_tag(AVIOContext *pb, int size, int tag)
 545 {
 546     avio_wb16(pb, tag);
 547     avio_wb16(pb, size);
 548 }
 549
 550 static void mxf_write_metadata_key(AVIOContext *pb, unsigned int value)
 551 {
 552     avio_write(pb, header_metadata_key, 13);
 553     avio_wb24(pb, value);
 554 }
 555
 556 static const MXFCodecUL *mxf_get_data_definition_ul(int type)
 557 {
 558     const MXFCodecUL *uls = ff_mxf_data_definition_uls;
 559     while (uls->uid[0]) {
 560         if (type == uls->id)
 561             break;
 562         uls++;
 563     }
 564     return uls;
 565 }
 566
 567 //one EC -> one descriptor. N ECs -> MultipleDescriptor + N descriptors
 568 #define DESCRIPTOR_COUNT(essence_container_count) \
 569     (essence_container_count > 1 ? essence_container_count + 1 : essence_container_count)
 570
 571 static void mxf_write_essence_container_refs(AVFormatContext *s)
 572 {
 573     MXFContext *c = s->priv_data;
 574     AVIOContext *pb = s->pb;
 575     int i;
 576
 577     mxf_write_refs_count(pb, DESCRIPTOR_COUNT(c->essence_container_count));
 578     av_log(s,AV_LOG_DEBUG, "essence container count:%d\n", c->essence_container_count);
 579     for (i = 0; i < s->nb_streams; i++) {
 580         MXFStreamContext *sc = s->streams[i]->priv_data;
 581         // check first track of essence container type and only write it once
 582         if (sc->track_essence_element_key[15] != 0)
 583             continue;
 584         avio_write(pb, *sc->container_ul, 16);
 585         if (c->essence_container_count == 1)
 586             break;
 587     }
 588
 589     if (c->essence_container_count > 1)
 590         avio_write(pb, multiple_desc_ul, 16);
 591 }
 592
 593 static void mxf_write_preface(AVFormatContext *s)
 594 {
 595     MXFContext *mxf = s->priv_data;
 596     AVIOContext *pb = s->pb;
 597
 598     mxf_write_metadata_key(pb, 0x012f00);
 599     PRINT_KEY(s, "preface key", pb->buf_ptr - 16);
 600     klv_encode_ber_length(pb, 138 + 16LL * DESCRIPTOR_COUNT(mxf->essence_container_count));
 601
 602     // write preface set uid
 603     mxf_write_local_tag(pb, 16, 0x3C0A);
 604     mxf_write_uuid(pb, Preface, 0);
 605     PRINT_KEY(s, "preface uid", pb->buf_ptr - 16);
 606
 607     // last modified date
 608     mxf_write_local_tag(pb, 8, 0x3B02);
 609     avio_wb64(pb, mxf->timestamp);
 610
 611     // write version
 612     mxf_write_local_tag(pb, 2, 0x3B05);
 613     avio_wb16(pb, 259); // v1.3
 614
 615     // Object Model Version
 616     mxf_write_local_tag(pb, 4, 0x3B07);
 617     avio_wb32(pb, 1);
 618
 619     // write identification_refs
 620     mxf_write_local_tag(pb, 16 + 8, 0x3B06);
 621     mxf_write_refs_count(pb, 1);
 622     mxf_write_uuid(pb, Identification, 0);
 623
 624     // write content_storage_refs
 625     mxf_write_local_tag(pb, 16, 0x3B03);
 626     mxf_write_uuid(pb, ContentStorage, 0);
 627
 628     // operational pattern
 629     mxf_write_local_tag(pb, 16, 0x3B09);
 630     if (s->oformat == &ff_mxf_opatom_muxer)
 631         avio_write(pb, opatom_ul, 16);
 632     else
 633         avio_write(pb, op1a_ul, 16);
 634
 635     // write essence_container_refs
 636     mxf_write_local_tag(pb, 8 + 16LL * DESCRIPTOR_COUNT(mxf->essence_container_count), 0x3B0A);
 637     mxf_write_essence_container_refs(s);
 638
 639     // write dm_scheme_refs
 640     mxf_write_local_tag(pb, 8, 0x3B0B);
 641     avio_wb64(pb, 0);
 642 }
 643
 644 /*
 645  * Returns the length of the UTF-16 string, in 16-bit characters, that would result
 646  * from decoding the utf-8 string.
 647  */
 648 static uint64_t mxf_utf16len(const char *utf8_str)
 649 {
 650     const uint8_t *q = utf8_str;
 651     uint64_t size = 0;
 652     while (*q) {
 653         uint32_t ch;
 654         GET_UTF8(ch, *q++, goto invalid;)
 655         if (ch < 0x10000)
 656             size++;
 657         else
 658             size += 2;
 659         continue;
 660 invalid:
 661         av_log(NULL, AV_LOG_ERROR, "Invalid UTF8 sequence in mxf_utf16len\n\n");
 662     }
 663     size += 1;
 664     return size;
 665 }
 666
 667 /*
 668  * Returns the calculated length a local tag containing an utf-8 string as utf-16
 669  */
 670 static int mxf_utf16_local_tag_length(const char *utf8_str)
 671 {
 672     uint64_t size;
 673
 674     if (!utf8_str)
 675         return 0;
 676
 677     size = mxf_utf16len(utf8_str);
 678     if (size >= UINT16_MAX/2) {
 679         av_log(NULL, AV_LOG_ERROR, "utf16 local tag size %"PRIx64" invalid (too large), ignoring\n", size);
 680         return 0;
 681     }
 682
 683     return 4 + size * 2;
 684 }
 685
 686 /*
 687  * Write a local tag containing an utf-8 string as utf-16
 688  */
 689 static void mxf_write_local_tag_utf16(AVIOContext *pb, int tag, const char *value)
 690 {
 691     uint64_t size = mxf_utf16len(value);
 692
 693     if (size >= UINT16_MAX/2) {
 694         av_log(NULL, AV_LOG_ERROR, "utf16 local tag size %"PRIx64" invalid (too large), ignoring\n", size);
 695         return;
 696     }
 697
 698     mxf_write_local_tag(pb, size*2, tag);
 699     avio_put_str16be(pb, value);
 700 }
 701
 702 static void store_version(AVFormatContext *s){
 703     AVIOContext *pb = s->pb;
 704
 705     if (s->flags & AVFMT_FLAG_BITEXACT) {
 706         avio_wb16(pb, 0); // major
 707         avio_wb16(pb, 0); // minor
 708         avio_wb16(pb, 0); // tertiary
 709     } else {
 710         avio_wb16(pb, LIBAVFORMAT_VERSION_MAJOR); // major
 711         avio_wb16(pb, LIBAVFORMAT_VERSION_MINOR); // minor
 712         avio_wb16(pb, LIBAVFORMAT_VERSION_MICRO); // tertiary
 713     }
 714     avio_wb16(pb, 0); // patch
 715     avio_wb16(pb, 0); // release
 716 }
 717
 718 static void mxf_write_identification(AVFormatContext *s)
 719 {
 720     MXFContext *mxf = s->priv_data;
 721     AVIOContext *pb = s->pb;
 722     const char *company = "FFmpeg";
 723     const char *product = s->oformat != &ff_mxf_opatom_muxer ? "OP1a Muxer" : "OPAtom Muxer";
 724     const char *version;
 725     int length;
 726
 727     mxf_write_metadata_key(pb, 0x013000);
 728     PRINT_KEY(s, "identification key", pb->buf_ptr - 16);
 729
 730     version = s->flags & AVFMT_FLAG_BITEXACT ?
 731         "0.0.0" : AV_STRINGIFY(LIBAVFORMAT_VERSION);
 732     length = 100 +mxf_utf16_local_tag_length(company) +
 733                   mxf_utf16_local_tag_length(product) +
 734                   mxf_utf16_local_tag_length(version);
 735     klv_encode_ber_length(pb, length);
 736
 737     // write uid
 738     mxf_write_local_tag(pb, 16, 0x3C0A);
 739     mxf_write_uuid(pb, Identification, 0);
 740     PRINT_KEY(s, "identification uid", pb->buf_ptr - 16);
 741
 742     // write generation uid
 743     mxf_write_local_tag(pb, 16, 0x3C09);
 744     mxf_write_uuid(pb, Identification, 1);
 745     mxf_write_local_tag_utf16(pb, 0x3C01, company); // Company Name
 746     mxf_write_local_tag_utf16(pb, 0x3C02, product); // Product Name
 747
 748     mxf_write_local_tag(pb, 10, 0x3C03); // Product Version
 749     store_version(s);
 750
 751     mxf_write_local_tag_utf16(pb, 0x3C04, version); // Version String
 752
 753     // write product uid
 754     mxf_write_local_tag(pb, 16, 0x3C05);
 755     mxf_write_uuid(pb, Identification, 2);
 756
 757     // modification date
 758     mxf_write_local_tag(pb, 8, 0x3C06);
 759     avio_wb64(pb, mxf->timestamp);
 760
 761     mxf_write_local_tag(pb, 10, 0x3C07); // Toolkit Version
 762     store_version(s);
 763 }
 764
 765 static void mxf_write_content_storage(AVFormatContext *s, MXFPackage *packages, int package_count)
 766 {
 767     AVIOContext *pb = s->pb;
 768     int i;
 769
 770     mxf_write_metadata_key(pb, 0x011800);
 771     PRINT_KEY(s, "content storage key", pb->buf_ptr - 16);
 772     klv_encode_ber_length(pb, 60 + (16 * package_count));
 773
 774     // write uid
 775     mxf_write_local_tag(pb, 16, 0x3C0A);
 776     mxf_write_uuid(pb, ContentStorage, 0);
 777     PRINT_KEY(s, "content storage uid", pb->buf_ptr - 16);
 778
 779     // write package reference
 780     mxf_write_local_tag(pb, 16 * package_count + 8, 0x1901);
 781     mxf_write_refs_count(pb, package_count);
 782     for (i = 0; i < package_count; i++) {
 783         mxf_write_uuid(pb, packages[i].type, packages[i].instance);
 784     }
 785
 786     // write essence container data
 787     mxf_write_local_tag(pb, 8 + 16, 0x1902);
 788     mxf_write_refs_count(pb, 1);
 789     mxf_write_uuid(pb, EssenceContainerData, 0);
 790 }
 791
 792 static void mxf_write_track(AVFormatContext *s, AVStream *st, MXFPackage *package)
 793 {
 794     MXFContext *mxf = s->priv_data;
 795     AVIOContext *pb = s->pb;
 796     MXFStreamContext *sc = st->priv_data;
 797
 798     mxf_write_metadata_key(pb, 0x013b00);
 799     PRINT_KEY(s, "track key", pb->buf_ptr - 16);
 800     klv_encode_ber_length(pb, 80);
 801
 802     // write track uid
 803     mxf_write_local_tag(pb, 16, 0x3C0A);
 804     mxf_write_uuid(pb, Track, mxf->track_instance_count);
 805     PRINT_KEY(s, "track uid", pb->buf_ptr - 16);
 806
 807     // write track id
 808     mxf_write_local_tag(pb, 4, 0x4801);
 809     avio_wb32(pb, st->index+2);
 810
 811     // write track number
 812     mxf_write_local_tag(pb, 4, 0x4804);
 813     if (package->type == MaterialPackage)
 814         avio_wb32(pb, 0); // track number of material package is 0
 815     else
 816         avio_write(pb, sc->track_essence_element_key + 12, 4);
 817
 818     // write edit rate
 819     mxf_write_local_tag(pb, 8, 0x4B01);
 820
 821     if (st == mxf->timecode_track && s->oformat == &ff_mxf_opatom_muxer) {
 822         avio_wb32(pb, mxf->tc.rate.num);
 823         avio_wb32(pb, mxf->tc.rate.den);
 824     } else {
 825         avio_wb32(pb, mxf->time_base.den);
 826         avio_wb32(pb, mxf->time_base.num);
 827     }
 828
 829     // write origin
 830     mxf_write_local_tag(pb, 8, 0x4B02);
 831     avio_wb64(pb, 0);
 832
 833     // write sequence refs
 834     mxf_write_local_tag(pb, 16, 0x4803);
 835     mxf_write_uuid(pb, Sequence, mxf->track_instance_count);
 836 }
 837
 838 static const uint8_t smpte_12m_timecode_track_data_ul[] = { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x01,0x03,0x02,0x01,0x01,0x00,0x00,0x00 };
 839
 840 static void mxf_write_common_fields(AVFormatContext *s, AVStream *st)
 841 {
 842     MXFContext *mxf = s->priv_data;
 843     AVIOContext *pb = s->pb;
 844
 845     // find data define uls
 846     mxf_write_local_tag(pb, 16, 0x0201);
 847     if (st == mxf->timecode_track)
 848         avio_write(pb, smpte_12m_timecode_track_data_ul, 16);
 849     else {
 850         const MXFCodecUL *data_def_ul = mxf_get_data_definition_ul(st->codecpar->codec_type);
 851         avio_write(pb, data_def_ul->uid, 16);
 852     }
 853
 854     // write duration
 855     mxf_write_local_tag(pb, 8, 0x0202);
 856
 857     if (st != mxf->timecode_track && s->oformat == &ff_mxf_opatom_muxer && st->codecpar->codec_type == AVMEDIA_TYPE_AUDIO) {
 858         avio_wb64(pb, mxf->body_offset / mxf->edit_unit_byte_count);
 859     } else {
 860         avio_wb64(pb, mxf->duration);
 861     }
 862 }
 863
 864 static void mxf_write_sequence(AVFormatContext *s, AVStream *st, MXFPackage *package)
 865 {
 866     MXFContext *mxf = s->priv_data;
 867     AVIOContext *pb = s->pb;
 868     enum MXFMetadataSetType component;
 869
 870     mxf_write_metadata_key(pb, 0x010f00);
 871     PRINT_KEY(s, "sequence key", pb->buf_ptr - 16);
 872     klv_encode_ber_length(pb, 80);
 873
 874     mxf_write_local_tag(pb, 16, 0x3C0A);
 875     mxf_write_uuid(pb, Sequence, mxf->track_instance_count);
 876
 877     PRINT_KEY(s, "sequence uid", pb->buf_ptr - 16);
 878     mxf_write_common_fields(s, st);
 879
 880     // write structural component
 881     mxf_write_local_tag(pb, 16 + 8, 0x1001);
 882     mxf_write_refs_count(pb, 1);
 883     if (st == mxf->timecode_track)
 884         component = TimecodeComponent;
 885     else
 886         component = SourceClip;
 887
 888     mxf_write_uuid(pb, component, mxf->track_instance_count);
 889 }
 890
 891 static void mxf_write_timecode_component(AVFormatContext *s, AVStream *st, MXFPackage *package)
 892 {
 893     MXFContext *mxf = s->priv_data;
 894     AVIOContext *pb = s->pb;
 895
 896     mxf_write_metadata_key(pb, 0x011400);
 897     klv_encode_ber_length(pb, 75);
 898
 899     // UID
 900     mxf_write_local_tag(pb, 16, 0x3C0A);
 901     mxf_write_uuid(pb, TimecodeComponent, mxf->track_instance_count);
 902
 903     mxf_write_common_fields(s, st);
 904
 905     // Start Time Code
 906     mxf_write_local_tag(pb, 8, 0x1501);
 907     avio_wb64(pb, mxf->tc.start);
 908
 909     // Rounded Time Code Base
 910     mxf_write_local_tag(pb, 2, 0x1502);
 911     avio_wb16(pb, mxf->timecode_base);
 912
 913     // Drop Frame
 914     mxf_write_local_tag(pb, 1, 0x1503);
 915     avio_w8(pb, !!(mxf->tc.flags & AV_TIMECODE_FLAG_DROPFRAME));
 916 }
 917
 918 static void mxf_write_structural_component(AVFormatContext *s, AVStream *st, MXFPackage *package)
 919 {
 920     MXFContext *mxf = s->priv_data;
 921     AVIOContext *pb = s->pb;
 922     int i;
 923
 924     mxf_write_metadata_key(pb, 0x011100);
 925     PRINT_KEY(s, "sturctural component key", pb->buf_ptr - 16);
 926     klv_encode_ber_length(pb, 108);
 927
 928     // write uid
 929     mxf_write_local_tag(pb, 16, 0x3C0A);
 930     mxf_write_uuid(pb, SourceClip, mxf->track_instance_count);
 931
 932     PRINT_KEY(s, "structural component uid", pb->buf_ptr - 16);
 933     mxf_write_common_fields(s, st);
 934
 935     // write start_position
 936     mxf_write_local_tag(pb, 8, 0x1201);
 937     avio_wb64(pb, 0);
 938
 939     // write source package uid, end of the reference
 940     mxf_write_local_tag(pb, 32, 0x1101);
 941     if (!package->ref) {
 942         for (i = 0; i < 4; i++)
 943             avio_wb64(pb, 0);
 944     } else
 945         mxf_write_umid(s, package->ref->instance);
 946
 947     // write source track id
 948     mxf_write_local_tag(pb, 4, 0x1102);
 949     if (package->type == SourcePackage && !package->ref)
 950         avio_wb32(pb, 0);
 951     else
 952         avio_wb32(pb, st->index+2);
 953 }
 954
 955 static void mxf_write_tape_descriptor(AVFormatContext *s)
 956 {
 957     AVIOContext *pb = s->pb;
 958
 959     mxf_write_metadata_key(pb, 0x012e00);
 960     PRINT_KEY(s, "tape descriptor key", pb->buf_ptr - 16);
 961     klv_encode_ber_length(pb, 20);
 962     mxf_write_local_tag(pb, 16, 0x3C0A);
 963     mxf_write_uuid(pb, TapeDescriptor, 0);
 964     PRINT_KEY(s, "tape_desc uid", pb->buf_ptr - 16);
 965 }
 966
 967
 968 static void mxf_write_multi_descriptor(AVFormatContext *s)
 969 {
 970     MXFContext *mxf = s->priv_data;
 971     AVIOContext *pb = s->pb;
 972     const uint8_t *ul;
 973     int i;
 974
 975     mxf_write_metadata_key(pb, 0x014400);
 976     PRINT_KEY(s, "multiple descriptor key", pb->buf_ptr - 16);
 977     klv_encode_ber_length(pb, 64 + 16LL * s->nb_streams);
 978
 979     mxf_write_local_tag(pb, 16, 0x3C0A);
 980     mxf_write_uuid(pb, MultipleDescriptor, 0);
 981     PRINT_KEY(s, "multi_desc uid", pb->buf_ptr - 16);
 982
 983     // write sample rate
 984     mxf_write_local_tag(pb, 8, 0x3001);
 985     avio_wb32(pb, mxf->time_base.den);
 986     avio_wb32(pb, mxf->time_base.num);
 987
 988     // write essence container ul
 989     mxf_write_local_tag(pb, 16, 0x3004);
 990     if (mxf->essence_container_count > 1)
 991         ul = multiple_desc_ul;
 992     else {
 993         MXFStreamContext *sc = s->streams[0]->priv_data;
 994         ul = *sc->container_ul;
 995     }
 996     avio_write(pb, ul, 16);
 997
 998     // write sub descriptor refs
 999     mxf_write_local_tag(pb, s->nb_streams * 16 + 8, 0x3F01);
1000     mxf_write_refs_count(pb, s->nb_streams);
1001     for (i = 0; i < s->nb_streams; i++)
1002         mxf_write_uuid(pb, SubDescriptor, i);
1003 }
1004
1005 static int64_t mxf_write_generic_desc(AVFormatContext *s, AVStream *st, const UID key)
1006 {
1007     MXFContext *mxf = s->priv_data;
1008     MXFStreamContext *sc = st->priv_data;
1009     AVIOContext *pb = s->pb;
1010     int64_t pos;
1011
1012     avio_write(pb, key, 16);
1013     klv_encode_ber4_length(pb, 0);
1014     pos = avio_tell(pb);
1015
1016     mxf_write_local_tag(pb, 16, 0x3C0A);
1017     mxf_write_uuid(pb, SubDescriptor, st->index);
1018
1019     mxf_write_local_tag(pb, 4, 0x3006);
1020     avio_wb32(pb, st->index+2);
1021
1022     mxf_write_local_tag(pb, 8, 0x3001);
1023     if (s->oformat == &ff_mxf_d10_muxer) {
1024         avio_wb32(pb, mxf->time_base.den);
1025         avio_wb32(pb, mxf->time_base.num);
1026     } else {
1027         if (st->codecpar->codec_id == AV_CODEC_ID_PCM_S16LE ||
1028             st->codecpar->codec_id == AV_CODEC_ID_PCM_S24LE) {
1029             avio_wb32(pb, st->codecpar->sample_rate);
1030             avio_wb32(pb, 1);
1031         } else {
1032             avio_wb32(pb, mxf->time_base.den);
1033             avio_wb32(pb, mxf->time_base.num);
1034         }
1035     }
1036
1037     mxf_write_local_tag(pb, 16, 0x3004);
1038     avio_write(pb, *sc->container_ul, 16);
1039
1040     return pos;
1041 }
1042
1043 static const UID mxf_s436m_anc_descriptor_key = { 0x06,0x0e,0x2b,0x34,0x02,0x53,0x01,0x01,0x0d,0x01,0x01,0x01,0x01,0x01,0x5c,0x00 };
1044 static const UID mxf_mpegvideo_descriptor_key = { 0x06,0x0E,0x2B,0x34,0x02,0x53,0x01,0x01,0x0d,0x01,0x01,0x01,0x01,0x01,0x51,0x00 };
1045 static const UID mxf_wav_descriptor_key       = { 0x06,0x0E,0x2B,0x34,0x02,0x53,0x01,0x01,0x0d,0x01,0x01,0x01,0x01,0x01,0x48,0x00 };
1046 static const UID mxf_aes3_descriptor_key      = { 0x06,0x0E,0x2B,0x34,0x02,0x53,0x01,0x01,0x0d,0x01,0x01,0x01,0x01,0x01,0x47,0x00 };
1047 static const UID mxf_cdci_descriptor_key      = { 0x06,0x0E,0x2B,0x34,0x02,0x53,0x01,0x01,0x0D,0x01,0x01,0x01,0x01,0x01,0x28,0x00 };
1048 static const UID mxf_generic_sound_descriptor_key = { 0x06,0x0E,0x2B,0x34,0x02,0x53,0x01,0x01,0x0D,0x01,0x01,0x01,0x01,0x01,0x42,0x00 };
1049
1050 static const UID mxf_avc_subdescriptor_key = { 0x06,0x0E,0x2B,0x34,0x02,0x53,0x01,0x01,0x0d,0x01,0x01,0x01,0x01,0x01,0x6E,0x00 };
1051
1052 static int get_trc(UID ul, enum AVColorTransferCharacteristic trc)
1053 {
1054     switch (trc){
1055     case AVCOL_TRC_GAMMA28   :
1056     case AVCOL_TRC_GAMMA22   :
1057         memcpy(ul, ((UID){0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x04,0x01,0x01,0x01,0x01,0x01,0x00,0x00}), 16);
1058         return 0;
1059     case AVCOL_TRC_BT709     :
1060     case AVCOL_TRC_SMPTE170M :
1061         memcpy(ul, ((UID){0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x04,0x01,0x01,0x01,0x01,0x02,0x00,0x00}), 16);
1062         return 0;
1063     case AVCOL_TRC_SMPTE240M :
1064         memcpy(ul, ((UID){0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x04,0x01,0x01,0x01,0x01,0x03,0x00,0x00}), 16);
1065         return 0;
1066     case AVCOL_TRC_BT1361_ECG:
1067         memcpy(ul, ((UID){0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x06,0x04,0x01,0x01,0x01,0x01,0x05,0x00,0x00}), 16);
1068         return 0;
1069     case AVCOL_TRC_LINEAR    :
1070         memcpy(ul, ((UID){0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x06,0x04,0x01,0x01,0x01,0x01,0x06,0x00,0x00}), 16);
1071         return 0;
1072     case AVCOL_TRC_SMPTE428  :
1073         memcpy(ul, ((UID){0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x08,0x04,0x01,0x01,0x01,0x01,0x07,0x00,0x00}), 16);
1074         return 0;
1075     default:
1076         return -1;
1077     }
1078 }
1079
1080 static int64_t mxf_write_cdci_common(AVFormatContext *s, AVStream *st, const UID key)
1081 {
1082     MXFStreamContext *sc = st->priv_data;
1083     AVIOContext *pb = s->pb;
1084     int stored_width = 0;
1085     int stored_height = (st->codecpar->height+15)/16*16;
1086     int display_height;
1087     int f1, f2;
1088     UID transfer_ul = {0};
1089     int64_t pos = mxf_write_generic_desc(s, st, key);
1090
1091     get_trc(transfer_ul, st->codecpar->color_trc);
1092
1093     if (st->codecpar->codec_id == AV_CODEC_ID_DVVIDEO) {
1094         if (st->codecpar->height == 1080)
1095             stored_width = 1920;
1096         else if (st->codecpar->height == 720)
1097             stored_width = 1280;
1098     }
1099     if (!stored_width)
1100         stored_width = (st->codecpar->width+15)/16*16;
1101
1102     mxf_write_local_tag(pb, 4, 0x3203);
1103     avio_wb32(pb, stored_width);
1104
1105     mxf_write_local_tag(pb, 4, 0x3202);
1106     avio_wb32(pb, stored_height>>sc->interlaced);
1107
1108     if (s->oformat == &ff_mxf_d10_muxer) {
1109         //Stored F2 Offset
1110         mxf_write_local_tag(pb, 4, 0x3216);
1111         avio_wb32(pb, 0);
1112
1113         //Image Start Offset
1114         mxf_write_local_tag(pb, 4, 0x3213);
1115         avio_wb32(pb, 0);
1116
1117         //Image End Offset
1118         mxf_write_local_tag(pb, 4, 0x3214);
1119         avio_wb32(pb, 0);
1120     }
1121
1122     //Sampled width
1123     mxf_write_local_tag(pb, 4, 0x3205);
1124     avio_wb32(pb, stored_width);
1125
1126     //Samples height
1127     mxf_write_local_tag(pb, 4, 0x3204);
1128     avio_wb32(pb, st->codecpar->height>>sc->interlaced);
1129
1130     //Sampled X Offset
1131     mxf_write_local_tag(pb, 4, 0x3206);
1132     avio_wb32(pb, 0);
1133
1134     //Sampled Y Offset
1135     mxf_write_local_tag(pb, 4, 0x3207);
1136     avio_wb32(pb, 0);
1137
1138     mxf_write_local_tag(pb, 4, 0x3209);
1139     avio_wb32(pb, stored_width);
1140
1141     if (st->codecpar->height == 608) // PAL + VBI
1142         display_height = 576;
1143     else if (st->codecpar->height == 512)  // NTSC + VBI
1144         display_height = 486;
1145     else
1146         display_height = st->codecpar->height;
1147
1148     mxf_write_local_tag(pb, 4, 0x3208);
1149     avio_wb32(pb, display_height>>sc->interlaced);
1150
1151     // display X offset
1152     mxf_write_local_tag(pb, 4, 0x320A);
1153     avio_wb32(pb, 0);
1154
1155     // display Y offset
1156     mxf_write_local_tag(pb, 4, 0x320B);
1157     avio_wb32(pb, (st->codecpar->height - display_height)>>sc->interlaced);
1158
1159     if (sc->interlaced) {
1160         //Display F2 Offset
1161         mxf_write_local_tag(pb, 4, 0x3217);
1162         avio_wb32(pb, -((st->codecpar->height - display_height)&1));
1163     }
1164
1165     // component depth
1166     mxf_write_local_tag(pb, 4, 0x3301);
1167     avio_wb32(pb, sc->component_depth);
1168
1169     // horizontal subsampling
1170     mxf_write_local_tag(pb, 4, 0x3302);
1171     avio_wb32(pb, sc->h_chroma_sub_sample);
1172
1173     // vertical subsampling
1174     mxf_write_local_tag(pb, 4, 0x3308);
1175     avio_wb32(pb, sc->v_chroma_sub_sample);
1176
1177     // color siting
1178     mxf_write_local_tag(pb, 1, 0x3303);
1179     avio_w8(pb, sc->color_siting);
1180
1181     // Padding Bits
1182     mxf_write_local_tag(pb, 2, 0x3307);
1183     avio_wb16(pb, 0);
1184
1185     if (st->codecpar->color_range != AVCOL_RANGE_UNSPECIFIED) {
1186         int black = 0,
1187             white = (1<<sc->component_depth) - 1,
1188             color = (1<<sc->component_depth) - 1;
1189         if (st->codecpar->color_range == AVCOL_RANGE_MPEG) {
1190             black = 1   << (sc->component_depth - 4);
1191             white = 235 << (sc->component_depth - 8);
1192             color = (14 << (sc->component_depth - 4)) + 1;
1193         }
1194         mxf_write_local_tag(pb, 4, 0x3304);
1195         avio_wb32(pb, black);
1196         mxf_write_local_tag(pb, 4, 0x3305);
1197         avio_wb32(pb, white);
1198         mxf_write_local_tag(pb, 4, 0x3306);
1199         avio_wb32(pb, color);
1200     }
1201
1202     if (sc->signal_standard) {
1203         mxf_write_local_tag(pb, 1, 0x3215);
1204         avio_w8(pb, sc->signal_standard);
1205     }
1206
1207     // frame layout
1208     mxf_write_local_tag(pb, 1, 0x320C);
1209     avio_w8(pb, sc->interlaced);
1210
1211     // video line map
1212     switch (st->codecpar->height) {
1213     case  576: f1 = 23; f2 = st->codecpar->codec_id == AV_CODEC_ID_DVVIDEO ? 335 : 336; break;
1214     case  608: f1 =  7; f2 = 320; break;
1215     case  480: f1 = 20; f2 = st->codecpar->codec_id == AV_CODEC_ID_DVVIDEO ? 285 : 283; break;
1216     case  512: f1 =  7; f2 = 270; break;
1217     case  720: f1 = 26; f2 =   0; break; // progressive
1218     case 1080: f1 = 21; f2 = 584; break;
1219     default:   f1 =  0; f2 =   0; break;
1220     }
1221
1222     if (!sc->interlaced && f2) {
1223         f2  = 0;
1224         f1 *= 2;
1225     }
1226
1227
1228     mxf_write_local_tag(pb, 16, 0x320D);
1229     avio_wb32(pb, 2);
1230     avio_wb32(pb, 4);
1231     avio_wb32(pb, f1);
1232     avio_wb32(pb, f2);
1233
1234     mxf_write_local_tag(pb, 8, 0x320E);
1235     avio_wb32(pb, sc->aspect_ratio.num);
1236     avio_wb32(pb, sc->aspect_ratio.den);
1237
1238     //Transfer characteristic
1239     if (transfer_ul[0]) {
1240         mxf_write_local_tag(pb, 16, 0x3210);
1241         avio_write(pb, transfer_ul, 16);
1242     };
1243
1244     mxf_write_local_tag(pb, 16, 0x3201);
1245     avio_write(pb, *sc->codec_ul, 16);
1246
1247     if (sc->interlaced && sc->field_dominance) {
1248         mxf_write_local_tag(pb, 1, 0x3212);
1249         avio_w8(pb, sc->field_dominance);
1250     }
1251
1252     if (st->codecpar->codec_id == AV_CODEC_ID_H264 && !sc->avc_intra) {
1253         // write avc sub descriptor ref
1254         mxf_write_local_tag(pb, 8 + 16, 0x8100);
1255         mxf_write_refs_count(pb, 1);
1256         mxf_write_uuid(pb, AVCSubDescriptor, 0);
1257     }
1258
1259     return pos;
1260 }
1261
1262 static void mxf_update_klv_size(AVIOContext *pb, int64_t pos)
1263 {
1264     int64_t cur_pos = avio_tell(pb);
1265     int size = cur_pos - pos;
1266     avio_seek(pb, pos - 4, SEEK_SET);
1267     klv_encode_ber4_length(pb, size);
1268     avio_seek(pb, cur_pos, SEEK_SET);
1269 }
1270
1271 static void mxf_write_avc_subdesc(AVFormatContext *s, AVStream *st)
1272 {
1273     AVIOContext *pb = s->pb;
1274     int64_t pos;
1275
1276     avio_write(pb, mxf_avc_subdescriptor_key, 16);
1277     klv_encode_ber4_length(pb, 0);
1278     pos = avio_tell(pb);
1279
1280     mxf_write_local_tag(pb, 16, 0x3C0A);
1281     mxf_write_uuid(pb, AVCSubDescriptor, 0);
1282
1283     mxf_write_local_tag(pb, 1, 0x8200);
1284     avio_w8(pb, 0xFF); // AVC Decoding Delay, unknown
1285
1286     mxf_write_local_tag(pb, 1, 0x8201);
1287     avio_w8(pb, st->codecpar->profile); // AVC Profile
1288
1289     mxf_write_local_tag(pb, 1, 0x8202);
1290     avio_w8(pb, st->codecpar->level); // AVC Level
1291
1292     mxf_update_klv_size(s->pb, pos);
1293 }
1294
1295 static void mxf_write_cdci_desc(AVFormatContext *s, AVStream *st)
1296 {
1297     int64_t pos = mxf_write_cdci_common(s, st, mxf_cdci_descriptor_key);
1298     mxf_update_klv_size(s->pb, pos);
1299
1300     if (st->codecpar->codec_id == AV_CODEC_ID_H264) {
1301         mxf_write_avc_subdesc(s, st);
1302     }
1303 }
1304
1305 static void mxf_write_h264_desc(AVFormatContext *s, AVStream *st)
1306 {
1307     MXFStreamContext *sc = st->priv_data;
1308     if (sc->avc_intra) {
1309         mxf_write_mpegvideo_desc(s, st);
1310     } else {
1311         int64_t pos = mxf_write_cdci_common(s, st, mxf_cdci_descriptor_key);
1312         mxf_update_klv_size(s->pb, pos);
1313         mxf_write_avc_subdesc(s, st);
1314     }
1315 }
1316
1317 static void mxf_write_s436m_anc_desc(AVFormatContext *s, AVStream *st)
1318 {
1319     int64_t pos = mxf_write_generic_desc(s, st, mxf_s436m_anc_descriptor_key);
1320     mxf_update_klv_size(s->pb, pos);
1321 }
1322
1323 static void mxf_write_mpegvideo_desc(AVFormatContext *s, AVStream *st)
1324 {
1325     AVIOContext *pb = s->pb;
1326     MXFStreamContext *sc = st->priv_data;
1327     int profile_and_level = (st->codecpar->profile<<4) | st->codecpar->level;
1328     int64_t pos = mxf_write_cdci_common(s, st, mxf_mpegvideo_descriptor_key);
1329
1330     if (st->codecpar->codec_id != AV_CODEC_ID_H264) {
1331         // bit rate
1332         mxf_write_local_tag(pb, 4, 0x8000);
1333         avio_wb32(pb, sc->video_bit_rate);
1334
1335         // profile and level
1336         mxf_write_local_tag(pb, 1, 0x8007);
1337         if (!st->codecpar->profile)
1338             profile_and_level |= 0x80; // escape bit
1339         avio_w8(pb, profile_and_level);
1340
1341         // low delay
1342         mxf_write_local_tag(pb, 1, 0x8003);
1343         avio_w8(pb, sc->low_delay);
1344
1345         // closed gop
1346         mxf_write_local_tag(pb, 1, 0x8004);
1347         avio_w8(pb, sc->seq_closed_gop);
1348
1349         // max gop
1350         mxf_write_local_tag(pb, 2, 0x8006);
1351         avio_wb16(pb, sc->max_gop);
1352
1353         // b picture count
1354         mxf_write_local_tag(pb, 2, 0x8008);
1355         avio_wb16(pb, sc->b_picture_count);
1356     }
1357
1358     mxf_update_klv_size(pb, pos);
1359 }
1360
1361 static int64_t mxf_write_generic_sound_common(AVFormatContext *s, AVStream *st, const UID key)
1362 {
1363     AVIOContext *pb = s->pb;
1364     MXFContext *mxf = s->priv_data;
1365     int show_warnings = !mxf->footer_partition_offset;
1366     int64_t pos = mxf_write_generic_desc(s, st, key);
1367
1368     if (s->oformat == &ff_mxf_opatom_muxer) {
1369         mxf_write_local_tag(pb, 8, 0x3002);
1370         avio_wb64(pb, mxf->body_offset / mxf->edit_unit_byte_count);
1371     }
1372
1373     // audio locked
1374     mxf_write_local_tag(pb, 1, 0x3D02);
1375     avio_w8(pb, 1);
1376
1377     // write audio sampling rate
1378     mxf_write_local_tag(pb, 8, 0x3D03);
1379     avio_wb32(pb, st->codecpar->sample_rate);
1380     avio_wb32(pb, 1);
1381
1382     if (s->oformat == &ff_mxf_d10_muxer) {
1383         mxf_write_local_tag(pb, 1, 0x3D04);
1384         avio_w8(pb, 0);
1385     }
1386
1387     mxf_write_local_tag(pb, 4, 0x3D07);
1388     if (mxf->channel_count == -1) {
1389         if (show_warnings && (s->oformat == &ff_mxf_d10_muxer) && (st->codecpar->channels != 4) && (st->codecpar->channels != 8))
1390             av_log(s, AV_LOG_WARNING, "the number of audio channels shall be 4 or 8 : the output will not comply to MXF D-10 specs, use -d10_channelcount to fix this\n");
1391         avio_wb32(pb, st->codecpar->channels);
1392     } else if (s->oformat == &ff_mxf_d10_muxer) {
1393         if (show_warnings && (mxf->channel_count < st->codecpar->channels))
1394             av_log(s, AV_LOG_WARNING, "d10_channelcount < actual number of audio channels : some channels will be discarded\n");
1395         if (show_warnings && (mxf->channel_count != 4) && (mxf->channel_count != 8))
1396             av_log(s, AV_LOG_WARNING, "d10_channelcount shall be set to 4 or 8 : the output will not comply to MXF D-10 specs\n");
1397         avio_wb32(pb, mxf->channel_count);
1398     } else {
1399         avio_wb32(pb, st->codecpar->channels);
1400     }
1401
1402     mxf_write_local_tag(pb, 4, 0x3D01);
1403     avio_wb32(pb, av_get_bits_per_sample(st->codecpar->codec_id));
1404
1405     return pos;
1406 }
1407
1408 static int64_t mxf_write_wav_common(AVFormatContext *s, AVStream *st, const UID key)
1409 {
1410     AVIOContext *pb = s->pb;
1411     int64_t pos = mxf_write_generic_sound_common(s, st, key);
1412
1413     mxf_write_local_tag(pb, 2, 0x3D0A);
1414     avio_wb16(pb, st->codecpar->block_align);
1415
1416     // avg bytes per sec
1417     mxf_write_local_tag(pb, 4, 0x3D09);
1418     avio_wb32(pb, st->codecpar->block_align*st->codecpar->sample_rate);
1419
1420     return pos;
1421 }
1422
1423 static void mxf_write_wav_desc(AVFormatContext *s, AVStream *st)
1424 {
1425     int64_t pos = mxf_write_wav_common(s, st, mxf_wav_descriptor_key);
1426     mxf_update_klv_size(s->pb, pos);
1427 }
1428
1429 static void mxf_write_aes3_desc(AVFormatContext *s, AVStream *st)
1430 {
1431     int64_t pos = mxf_write_wav_common(s, st, mxf_aes3_descriptor_key);
1432     mxf_update_klv_size(s->pb, pos);
1433 }
1434
1435 static void mxf_write_generic_sound_desc(AVFormatContext *s, AVStream *st)
1436 {
1437     int64_t pos = mxf_write_generic_sound_common(s, st, mxf_generic_sound_descriptor_key);
1438     mxf_update_klv_size(s->pb, pos);
1439 }
1440
1441 static const uint8_t mxf_indirect_value_utf16le[] = { 0x4c,0x00,0x02,0x10,0x01,0x00,0x00,0x00,0x00,0x06,0x0e,0x2b,0x34,0x01,0x04,0x01,0x01 };
1442
1443 static int mxf_write_tagged_value(AVFormatContext *s, const char* name, const char* value)
1444 {
1445     MXFContext *mxf = s->priv_data;
1446     AVIOContext *pb = s->pb;
1447     int name_size = mxf_utf16_local_tag_length(name);
1448     int indirect_value_size = 13 + mxf_utf16_local_tag_length(value);
1449
1450     if (!name_size || indirect_value_size == 13)
1451         return 1;
1452
1453     mxf_write_metadata_key(pb, 0x013f00);
1454     klv_encode_ber_length(pb, 24 + name_size + indirect_value_size);
1455
1456     // write instance UID
1457     mxf_write_local_tag(pb, 16, 0x3C0A);
1458     mxf_write_uuid(pb, TaggedValue, mxf->tagged_value_count);
1459
1460     // write name
1461     mxf_write_local_tag_utf16(pb, 0x5001, name); // Name
1462
1463     // write indirect value
1464     mxf_write_local_tag(pb, indirect_value_size, 0x5003);
1465     avio_write(pb, mxf_indirect_value_utf16le, 17);
1466     avio_put_str16le(pb, value);
1467
1468     mxf->tagged_value_count++;
1469     return 0;
1470 }
1471
1472 static int mxf_write_user_comments(AVFormatContext *s, const AVDictionary *m)
1473 {
1474     MXFContext *mxf = s->priv_data;
1475     AVDictionaryEntry *t = NULL;
1476     int count = 0;
1477
1478     while ((t = av_dict_get(m, "comment_", t, AV_DICT_IGNORE_SUFFIX))) {
1479         if (mxf->tagged_value_count >= UINT16_MAX) {
1480             av_log(s, AV_LOG_ERROR, "too many tagged values, ignoring remaining\n");
1481             return count;
1482         }
1483
1484         if (mxf_write_tagged_value(s, t->key + 8, t->value) == 0)
1485             count++;
1486     }
1487     return count;
1488 }
1489
1490 static void mxf_write_package(AVFormatContext *s, MXFPackage *package)
1491 {
1492     MXFContext *mxf = s->priv_data;
1493     AVIOContext *pb = s->pb;
1494     int i, track_count = s->nb_streams+1;
1495     int name_size = mxf_utf16_local_tag_length(package->name);
1496     int user_comment_count = 0;
1497
1498     if (package->type == MaterialPackage) {
1499         if (mxf->store_user_comments)
1500             user_comment_count = mxf_write_user_comments(s, s->metadata);
1501         mxf_write_metadata_key(pb, 0x013600);
1502         PRINT_KEY(s, "Material Package key", pb->buf_ptr - 16);
1503         klv_encode_ber_length(pb, 92 + name_size + (16*track_count) + (16*user_comment_count) + 12LL*mxf->store_user_comments);
1504     } else {
1505         mxf_write_metadata_key(pb, 0x013700);
1506         PRINT_KEY(s, "Source Package key", pb->buf_ptr - 16);
1507         klv_encode_ber_length(pb, 112 + name_size + (16*track_count) + 12LL*mxf->store_user_comments); // 20 bytes length for descriptor reference
1508     }
1509
1510     // write uid
1511     mxf_write_local_tag(pb, 16, 0x3C0A);
1512     mxf_write_uuid(pb, package->type, package->instance);
1513     av_log(s, AV_LOG_DEBUG, "package type:%d\n", package->type);
1514     PRINT_KEY(s, "package uid", pb->buf_ptr - 16);
1515
1516     // write package umid
1517     mxf_write_local_tag(pb, 32, 0x4401);
1518     mxf_write_umid(s, package->instance);
1519     PRINT_KEY(s, "package umid second part", pb->buf_ptr - 16);
1520
1521     // package name
1522     if (name_size)
1523         mxf_write_local_tag_utf16(pb, 0x4402, package->name);
1524
1525     // package creation date
1526     mxf_write_local_tag(pb, 8, 0x4405);
1527     avio_wb64(pb, mxf->timestamp);
1528
1529     // package modified date
1530     mxf_write_local_tag(pb, 8, 0x4404);
1531     avio_wb64(pb, mxf->timestamp);
1532
1533     // write track refs
1534     mxf_write_local_tag(pb, track_count*16 + 8, 0x4403);
1535     mxf_write_refs_count(pb, track_count);
1536     // these are the uuids of the tracks the will be written in mxf_write_track
1537     for (i = 0; i < track_count; i++)
1538         mxf_write_uuid(pb, Track,  mxf->track_instance_count + i);
1539
1540     // write user comment refs
1541     if (mxf->store_user_comments) {
1542         mxf_write_local_tag(pb, user_comment_count*16 + 8, 0x4406);
1543         mxf_write_refs_count(pb, user_comment_count);
1544         for (i = 0; i < user_comment_count; i++)
1545             mxf_write_uuid(pb, TaggedValue, mxf->tagged_value_count - user_comment_count + i);
1546     }
1547
1548     // write multiple descriptor reference
1549     if (package->type == SourcePackage && package->instance == 1) {
1550         mxf_write_local_tag(pb, 16, 0x4701);
1551         if (s->nb_streams > 1) {
1552             mxf_write_uuid(pb, MultipleDescriptor, 0);
1553             mxf_write_multi_descriptor(s);
1554         } else
1555             mxf_write_uuid(pb, SubDescriptor, 0);
1556     } else if (package->type == SourcePackage && package->instance == 2) {
1557         mxf_write_local_tag(pb, 16, 0x4701);
1558         mxf_write_uuid(pb, TapeDescriptor, 0);
1559         mxf_write_tape_descriptor(s);
1560     }
1561
1562     /*
1563      * for every 1 track in a package there is 1 sequence and 1 component.
1564      * all 3 of these elements share the same instance number for generating
1565      * there instance uuids. mxf->track_instance_count stores this value.
1566      * mxf->track_instance_count is incremented after a group of all 3 of
1567      * these elements are written.
1568      */
1569
1570     // write timecode track
1571     mxf_write_track(s, mxf->timecode_track, package);
1572     mxf_write_sequence(s, mxf->timecode_track, package);
1573     mxf_write_timecode_component(s, mxf->timecode_track, package);
1574     mxf->track_instance_count++;
1575
1576     for (i = 0; i < s->nb_streams; i++) {
1577         AVStream *st = s->streams[i];
1578         mxf_write_track(s, st, package);
1579         mxf_write_sequence(s, st, package);
1580         mxf_write_structural_component(s, st, package);
1581         mxf->track_instance_count++;
1582
1583         if (package->type == SourcePackage && package->instance == 1) {
1584             MXFStreamContext *sc = st->priv_data;
1585             mxf_essence_container_uls[sc->index].write_desc(s, st);
1586         }
1587     }
1588 }
1589
1590 static int mxf_write_essence_container_data(AVFormatContext *s)
1591 {
1592     AVIOContext *pb = s->pb;
1593
1594     mxf_write_metadata_key(pb, 0x012300);
1595     klv_encode_ber_length(pb, 72);
1596
1597     mxf_write_local_tag(pb, 16, 0x3C0A); // Instance UID
1598     mxf_write_uuid(pb, EssenceContainerData, 0);
1599
1600     mxf_write_local_tag(pb, 32, 0x2701); // Linked Package UID
1601     mxf_write_umid(s, 1);
1602
1603     mxf_write_local_tag(pb, 4, 0x3F07); // BodySID
1604     avio_wb32(pb, 1);
1605
1606     mxf_write_local_tag(pb, 4, 0x3F06); // IndexSID
1607     avio_wb32(pb, 2);
1608
1609     return 0;
1610 }
1611
1612 static int mxf_write_header_metadata_sets(AVFormatContext *s)
1613 {
1614     MXFContext *mxf = s->priv_data;
1615     AVDictionaryEntry *entry = NULL;
1616     AVStream *st = NULL;
1617     int i;
1618     MXFPackage packages[3] = {{0}};
1619     int package_count = 2;
1620     packages[0].type = MaterialPackage;
1621     packages[1].type = SourcePackage;
1622     packages[1].instance = 1;
1623     packages[0].ref = &packages[1];
1624
1625
1626     if (entry = av_dict_get(s->metadata, "material_package_name", NULL, 0))
1627        packages[0].name = entry->value;
1628
1629     if (entry = av_dict_get(s->metadata, "file_package_name", NULL, 0)) {
1630         packages[1].name = entry->value;
1631     } else {
1632         /* check if any of the streams contain a file_package_name */
1633         for (i = 0; i < s->nb_streams; i++) {
1634             st = s->streams[i];
1635             if (entry = av_dict_get(st->metadata, "file_package_name", NULL, 0)) {
1636                 packages[1].name = entry->value;
1637                 break;
1638             }
1639         }
1640     }
1641
1642     entry = av_dict_get(s->metadata, "reel_name", NULL, 0);
1643     if (entry) {
1644         packages[2].name = entry->value;
1645         packages[2].type = SourcePackage;
1646         packages[2].instance = 2;
1647         packages[1].ref = &packages[2];
1648         package_count = 3;
1649     }
1650
1651     mxf_write_preface(s);
1652     mxf_write_identification(s);
1653     mxf_write_content_storage(s, packages, package_count);
1654     mxf->track_instance_count = 0;
1655     for (i = 0; i < package_count; i++)
1656         mxf_write_package(s, &packages[i]);
1657     mxf_write_essence_container_data(s);
1658     return 0;
1659 }
1660
1661 static unsigned klv_fill_size(uint64_t size)
1662 {
1663     unsigned pad = KAG_SIZE - (size & (KAG_SIZE-1));
1664     if (pad < 20) // smallest fill item possible
1665         return pad + KAG_SIZE;
1666     else
1667         return pad & (KAG_SIZE-1);
1668 }
1669
1670 static void mxf_write_index_table_segment(AVFormatContext *s)
1671 {
1672     MXFContext *mxf = s->priv_data;
1673     AVIOContext *pb = s->pb;
1674     int i, j, temporal_reordering = 0;
1675     int key_index = mxf->last_key_index;
1676     int prev_non_b_picture = 0;
1677     int audio_frame_size = 0;
1678     int64_t pos;
1679
1680     av_log(s, AV_LOG_DEBUG, "edit units count %d\n", mxf->edit_units_count);
1681
1682     if (!mxf->edit_units_count && !mxf->edit_unit_byte_count)
1683         return;
1684
1685     avio_write(pb, index_table_segment_key, 16);
1686
1687     klv_encode_ber4_length(pb, 0);
1688     pos = avio_tell(pb);
1689
1690     // instance id
1691     mxf_write_local_tag(pb, 16, 0x3C0A);
1692     mxf_write_uuid(pb, IndexTableSegment, 0);
1693
1694     // index edit rate
1695     mxf_write_local_tag(pb, 8, 0x3F0B);
1696     avio_wb32(pb, mxf->time_base.den);
1697     avio_wb32(pb, mxf->time_base.num);
1698
1699     // index start position
1700     mxf_write_local_tag(pb, 8, 0x3F0C);
1701     avio_wb64(pb, mxf->last_indexed_edit_unit);
1702
1703     // index duration
1704     mxf_write_local_tag(pb, 8, 0x3F0D);
1705     if (mxf->edit_unit_byte_count)
1706         avio_wb64(pb, 0); // index table covers whole container
1707     else
1708         avio_wb64(pb, mxf->edit_units_count);
1709
1710     // edit unit byte count
1711     mxf_write_local_tag(pb, 4, 0x3F05);
1712     avio_wb32(pb, mxf->edit_unit_byte_count);
1713
1714     // index sid
1715     mxf_write_local_tag(pb, 4, 0x3F06);
1716     avio_wb32(pb, 2);
1717
1718     // body sid
1719     mxf_write_local_tag(pb, 4, 0x3F07);
1720     avio_wb32(pb, 1);
1721
1722     // real slice count - 1
1723     mxf_write_local_tag(pb, 1, 0x3F08);
1724     avio_w8(pb, !mxf->edit_unit_byte_count); // only one slice for CBR
1725
1726     // delta entry array
1727     mxf_write_local_tag(pb, 8 + (s->nb_streams+1)*6, 0x3F09);
1728     avio_wb32(pb, s->nb_streams+1); // num of entries
1729     avio_wb32(pb, 6);               // size of one entry
1730     // write system item delta entry
1731     avio_w8(pb, 0);
1732     avio_w8(pb, 0); // slice entry
1733     avio_wb32(pb, 0); // element delta
1734     // write each stream delta entry
1735     for (i = 0; i < s->nb_streams; i++) {
1736         AVStream *st = s->streams[i];
1737         MXFStreamContext *sc = st->priv_data;
1738         avio_w8(pb, sc->temporal_reordering);
1739         if (sc->temporal_reordering)
1740             temporal_reordering = 1;
1741         if (mxf->edit_unit_byte_count) {
1742             avio_w8(pb, 0); // slice number
1743             avio_wb32(pb, sc->slice_offset);
1744         } else if (i == 0) { // video track
1745             avio_w8(pb, 0); // slice number
1746             avio_wb32(pb, KAG_SIZE); // system item size including klv fill
1747         } else { // audio or data track
1748             if (!audio_frame_size) {
1749                 audio_frame_size = sc->frame_size;
1750                 audio_frame_size += klv_fill_size(audio_frame_size);
1751             }
1752             avio_w8(pb, 1);
1753             avio_wb32(pb, (i-1)*audio_frame_size); // element delta
1754         }
1755     }
1756
1757     if (!mxf->edit_unit_byte_count) {
1758         MXFStreamContext *sc = s->streams[0]->priv_data;
1759         mxf_write_local_tag(pb, 8 + mxf->edit_units_count*15, 0x3F0A);
1760         avio_wb32(pb, mxf->edit_units_count);  // num of entries
1761         avio_wb32(pb, 15);  // size of one entry
1762
1763         for (i = 0; i < mxf->edit_units_count; i++) {
1764             int temporal_offset = 0;
1765
1766             if (!(mxf->index_entries[i].flags & 0x33)) { // I-frame
1767                 sc->max_gop = FFMAX(sc->max_gop, i - mxf->last_key_index);
1768                 mxf->last_key_index = key_index;
1769                 key_index = i;
1770             }
1771
1772             if (temporal_reordering) {
1773                 int pic_num_in_gop = i - key_index;
1774                 if (pic_num_in_gop != mxf->index_entries[i].temporal_ref) {
1775                     for (j = key_index; j < mxf->edit_units_count; j++) {
1776                         if (pic_num_in_gop == mxf->index_entries[j].temporal_ref)
1777                             break;
1778                     }
1779                     if (j == mxf->edit_units_count)
1780                         av_log(s, AV_LOG_WARNING, "missing frames\n");
1781                     temporal_offset = j - key_index - pic_num_in_gop;
1782                 }
1783             }
1784             avio_w8(pb, temporal_offset);
1785
1786             if ((mxf->index_entries[i].flags & 0x30) == 0x30) { // back and forward prediction
1787                 sc->b_picture_count = FFMAX(sc->b_picture_count, i - prev_non_b_picture);
1788                 avio_w8(pb, mxf->last_key_index - i);
1789             } else {
1790                 avio_w8(pb, key_index - i); // key frame offset
1791                 if ((mxf->index_entries[i].flags & 0x20) == 0x20) // only forward
1792                     mxf->last_key_index = key_index;
1793                 prev_non_b_picture = i;
1794             }
1795
1796             if (!(mxf->index_entries[i].flags & 0x33) && // I-frame
1797                 mxf->index_entries[i].flags & 0x40 && !temporal_offset)
1798                 mxf->index_entries[i].flags |= 0x80; // random access
1799             avio_w8(pb, mxf->index_entries[i].flags);
1800             // stream offset
1801             avio_wb64(pb, mxf->index_entries[i].offset);
1802             if (s->nb_streams > 1)
1803                 avio_wb32(pb, mxf->index_entries[i].slice_offset);
1804             else
1805                 avio_wb32(pb, 0);
1806         }
1807
1808         mxf->last_key_index = key_index - mxf->edit_units_count;
1809         mxf->last_indexed_edit_unit += mxf->edit_units_count;
1810         mxf->edit_units_count = 0;
1811     }
1812
1813     mxf_update_klv_size(pb, pos);
1814 }
1815
1816 static void mxf_write_klv_fill(AVFormatContext *s)
1817 {
1818     unsigned pad = klv_fill_size(avio_tell(s->pb));
1819     if (pad) {
1820         avio_write(s->pb, klv_fill_key, 16);
1821         pad -= 16 + 4;
1822         klv_encode_ber4_length(s->pb, pad);
1823         ffio_fill(s->pb, 0, pad);
1824         av_assert1(!(avio_tell(s->pb) & (KAG_SIZE-1)));
1825     }
1826 }
1827
1828 static int mxf_write_partition(AVFormatContext *s, int bodysid,
1829                                 int indexsid,
1830                                 const uint8_t *key, int write_metadata)
1831 {
1832     MXFContext *mxf = s->priv_data;
1833     AVIOContext *pb = s->pb;
1834     int64_t header_byte_count_offset;
1835     unsigned index_byte_count = 0;
1836     uint64_t partition_offset = avio_tell(pb);
1837     int err;
1838
1839     if (!mxf->edit_unit_byte_count && mxf->edit_units_count)
1840         index_byte_count = 85 + 12+(s->nb_streams+1)*6 +
1841             12+mxf->edit_units_count*15;
1842     else if (mxf->edit_unit_byte_count && indexsid)
1843         index_byte_count = 80;
1844
1845     if (index_byte_count) {
1846         index_byte_count += 16 + 4; // add encoded ber4 length
1847         index_byte_count += klv_fill_size(index_byte_count);
1848     }
1849
1850     if (key && !memcmp(key, body_partition_key, 16)) {
1851         if ((err = av_reallocp_array(&mxf->body_partition_offset, mxf->body_partitions_count + 1,
1852                                      sizeof(*mxf->body_partition_offset))) < 0) {
1853             mxf->body_partitions_count = 0;
1854             return err;
1855         }
1856         mxf->body_partition_offset[mxf->body_partitions_count++] = partition_offset;
1857     }
1858
1859     // write klv
1860     if (key)
1861         avio_write(pb, key, 16);
1862     else
1863         avio_write(pb, body_partition_key, 16);
1864
1865     klv_encode_ber4_length(pb, 88 + 16LL * DESCRIPTOR_COUNT(mxf->essence_container_count));
1866
1867     // write partition value
1868     avio_wb16(pb, 1); // majorVersion
1869     avio_wb16(pb, 3); // minorVersion
1870     avio_wb32(pb, KAG_SIZE); // KAGSize
1871
1872     avio_wb64(pb, partition_offset); // ThisPartition
1873
1874     if (key && !memcmp(key, body_partition_key, 16) && mxf->body_partitions_count > 1)
1875         avio_wb64(pb, mxf->body_partition_offset[mxf->body_partitions_count-2]); // PreviousPartition
1876     else if (key && !memcmp(key, footer_partition_key, 16) && mxf->body_partitions_count)
1877         avio_wb64(pb, mxf->body_partition_offset[mxf->body_partitions_count-1]); // PreviousPartition
1878     else
1879         avio_wb64(pb, 0);
1880
1881     avio_wb64(pb, mxf->footer_partition_offset); // footerPartition
1882
1883     // set offset
1884     header_byte_count_offset = avio_tell(pb);
1885     avio_wb64(pb, 0); // headerByteCount, update later
1886
1887     // indexTable
1888     avio_wb64(pb, index_byte_count); // indexByteCount
1889     avio_wb32(pb, index_byte_count ? indexsid : 0); // indexSID
1890
1891     // BodyOffset
1892     if (bodysid && mxf->edit_units_count && mxf->body_partitions_count && s->oformat != &ff_mxf_opatom_muxer)
1893         avio_wb64(pb, mxf->body_offset);
1894     else
1895         avio_wb64(pb, 0);
1896
1897     avio_wb32(pb, bodysid); // bodySID
1898
1899     // operational pattern
1900     if (s->oformat == &ff_mxf_opatom_muxer)
1901         avio_write(pb, opatom_ul, 16);
1902     else
1903         avio_write(pb, op1a_ul, 16);
1904
1905     // essence container
1906     mxf_write_essence_container_refs(s);
1907
1908     if (write_metadata) {
1909         // mark the start of the headermetadata and calculate metadata size
1910         int64_t pos, start;
1911         unsigned header_byte_count;
1912
1913         mxf_write_klv_fill(s);
1914         start = avio_tell(s->pb);
1915         mxf_write_primer_pack(s);
1916         mxf_write_klv_fill(s);
1917         mxf_write_header_metadata_sets(s);
1918         pos = avio_tell(s->pb);
1919         header_byte_count = pos - start + klv_fill_size(pos);
1920
1921         // update header_byte_count
1922         avio_seek(pb, header_byte_count_offset, SEEK_SET);
1923         avio_wb64(pb, header_byte_count);
1924         avio_seek(pb, pos, SEEK_SET);
1925     }
1926
1927     if(key)
1928         avio_write_marker(pb, AV_NOPTS_VALUE, AVIO_DATA_MARKER_FLUSH_POINT);
1929
1930     return 0;
1931 }
1932
1933 static const struct {
1934     int profile;
1935     UID codec_ul;
1936 } mxf_prores_codec_uls[] = {
1937     { FF_PROFILE_PRORES_PROXY,    { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x0d,0x04,0x01,0x02,0x02,0x03,0x06,0x01,0x00 } },
1938     { FF_PROFILE_PRORES_LT,       { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x0d,0x04,0x01,0x02,0x02,0x03,0x06,0x02,0x00 } },
1939     { FF_PROFILE_PRORES_STANDARD, { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x0d,0x04,0x01,0x02,0x02,0x03,0x06,0x03,0x00 } },
1940     { FF_PROFILE_PRORES_HQ,       { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x0d,0x04,0x01,0x02,0x02,0x03,0x06,0x04,0x00 } },
1941     { FF_PROFILE_PRORES_4444,     { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x0d,0x04,0x01,0x02,0x02,0x03,0x06,0x05,0x00 } },
1942     { FF_PROFILE_PRORES_XQ,       { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x0d,0x04,0x01,0x02,0x02,0x03,0x06,0x06,0x00 } },
1943 };
1944
1945 static int mxf_parse_prores_frame(AVFormatContext *s, AVStream *st, AVPacket *pkt)
1946 {
1947     MXFContext *mxf = s->priv_data;
1948     MXFStreamContext *sc = st->priv_data;
1949     int i, profile;
1950
1951     if (mxf->header_written)
1952         return 1;
1953
1954     sc->codec_ul = NULL;
1955     profile = st->codecpar->profile;
1956     for (i = 0; i < FF_ARRAY_ELEMS(mxf_prores_codec_uls); i++) {
1957         if (profile == mxf_prores_codec_uls[i].profile) {
1958             sc->codec_ul = &mxf_prores_codec_uls[i].codec_ul;
1959             break;
1960         }
1961     }
1962     if (!sc->codec_ul)
1963         return 0;
1964
1965     sc->frame_size = pkt->size;
1966
1967     return 1;
1968 }
1969
1970 static const struct {
1971     int cid;
1972     UID codec_ul;
1973 } mxf_dnxhd_codec_uls[] = {
1974     { 1235, { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x0a,0x04,0x01,0x02,0x02,0x71,0x01,0x00,0x00 } }, // 1080p 10bit HIGH
1975     { 1237, { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x0a,0x04,0x01,0x02,0x02,0x71,0x03,0x00,0x00 } }, // 1080p 8bit MED
1976     { 1238, { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x0a,0x04,0x01,0x02,0x02,0x71,0x04,0x00,0x00 } }, // 1080p 8bit HIGH
1977     { 1241, { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x0a,0x04,0x01,0x02,0x02,0x71,0x07,0x00,0x00 } }, // 1080i 10bit HIGH
1978     { 1242, { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x0a,0x04,0x01,0x02,0x02,0x71,0x08,0x00,0x00 } }, // 1080i 8bit MED
1979     { 1243, { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x0a,0x04,0x01,0x02,0x02,0x71,0x09,0x00,0x00 } }, // 1080i 8bit HIGH
1980     { 1244, { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x0a,0x04,0x01,0x02,0x02,0x71,0x0a,0x00,0x00 } }, // 1080i 8bit TR
1981     { 1250, { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x0a,0x04,0x01,0x02,0x02,0x71,0x10,0x00,0x00 } }, // 720p 10bit
1982     { 1251, { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x0a,0x04,0x01,0x02,0x02,0x71,0x11,0x00,0x00 } }, // 720p 8bit HIGH
1983     { 1252, { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x0a,0x04,0x01,0x02,0x02,0x71,0x12,0x00,0x00 } }, // 720p 8bit MED
1984     { 1253, { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x0a,0x04,0x01,0x02,0x02,0x71,0x13,0x00,0x00 } }, // 720p 8bit LOW
1985     { 1256, { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x0a,0x04,0x01,0x02,0x02,0x71,0x16,0x00,0x00 } }, // 1080p 10bit 444
1986     { 1258, { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x0a,0x04,0x01,0x02,0x02,0x71,0x18,0x00,0x00 } }, // 720p 8bit TR
1987     { 1259, { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x0a,0x04,0x01,0x02,0x02,0x71,0x19,0x00,0x00 } }, // 1080p 8bit TR
1988     { 1260, { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x0a,0x04,0x01,0x02,0x02,0x71,0x1a,0x00,0x00 } }, // 1080i 8bit TR MBAFF
1989     { 1270, { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x0a,0x04,0x01,0x02,0x02,0x71,0x24,0x00,0x00 } }, // DNXHR 444
1990     { 1271, { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x0a,0x04,0x01,0x02,0x02,0x71,0x25,0x00,0x00 } }, // DNXHR HQX
1991     { 1272, { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x0a,0x04,0x01,0x02,0x02,0x71,0x26,0x00,0x00 } }, // DNXHR HQ
1992     { 1273, { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x0a,0x04,0x01,0x02,0x02,0x71,0x27,0x00,0x00 } }, // DNXHR SQ
1993     { 1274, { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x0a,0x04,0x01,0x02,0x02,0x71,0x28,0x00,0x00 } }, // DNXHR LB
1994 };
1995
1996 static int mxf_parse_dnxhd_frame(AVFormatContext *s, AVStream *st, AVPacket *pkt)
1997 {
1998     MXFContext *mxf = s->priv_data;
1999     MXFStreamContext *sc = st->priv_data;
2000     int i, cid, frame_size = 0;
2001
2002     if (mxf->header_written)
2003         return 1;
2004
2005     if (pkt->size < 43)
2006         return 0;
2007
2008     sc->codec_ul = NULL;
2009     cid = AV_RB32(pkt->data + 0x28);
2010     for (i = 0; i < FF_ARRAY_ELEMS(mxf_dnxhd_codec_uls); i++) {
2011         if (cid == mxf_dnxhd_codec_uls[i].cid) {
2012             sc->codec_ul = &mxf_dnxhd_codec_uls[i].codec_ul;
2013             break;
2014         }
2015     }
2016     if (!sc->codec_ul)
2017         return 0;
2018
2019     sc->component_depth = 0;
2020     switch (pkt->data[0x21] >> 5) {
2021     case 1: sc->component_depth = 8; break;
2022     case 2: sc->component_depth = 10; break;
2023     case 3: sc->component_depth = 12; break;
2024     }
2025     if (!sc->component_depth)
2026         return 0;
2027
2028     if ((frame_size = avpriv_dnxhd_get_frame_size(cid)) == DNXHD_VARIABLE) {
2029         frame_size = avpriv_dnxhd_get_hr_frame_size(cid, st->codecpar->width, st->codecpar->height);
2030     }
2031     if (frame_size < 0)
2032         return 0;
2033
2034     if ((sc->interlaced = avpriv_dnxhd_get_interlaced(cid)) < 0)
2035         return 0;
2036
2037     if (cid >= 1270) { // RI raster
2038         av_reduce(&sc->aspect_ratio.num, &sc->aspect_ratio.den,
2039                   st->codecpar->width, st->codecpar->height,
2040                   INT_MAX);
2041     } else {
2042         sc->aspect_ratio = (AVRational){ 16, 9 };
2043     }
2044
2045     sc->frame_size = pkt->size;
2046
2047     return 1;
2048 }
2049
2050 static const struct {
2051     const UID container_ul;
2052     const UID codec_ul;
2053 } mxf_dv_uls[] = {
2054     { { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x0D,0x01,0x03,0x01,0x02,0x02,0x01,0x01 }, // IEC DV25 525/60
2055       { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x04,0x01,0x02,0x02,0x02,0x01,0x01,0x00 } },
2056     { { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x0D,0x01,0x03,0x01,0x02,0x02,0x02,0x01 }, // IEC DV25 626/50
2057       { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x04,0x01,0x02,0x02,0x02,0x01,0x02,0x00 } },
2058     { { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x0D,0x01,0x03,0x01,0x02,0x02,0x40,0x01 }, // DV25 525/60
2059       { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x04,0x01,0x02,0x02,0x02,0x02,0x01,0x00 }, },
2060     { { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x0D,0x01,0x03,0x01,0x02,0x02,0x41,0x01 }, // DV25 625/50
2061       { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x04,0x01,0x02,0x02,0x02,0x02,0x02,0x00 }, },
2062     { { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x0D,0x01,0x03,0x01,0x02,0x02,0x50,0x01 }, // DV50 525/60
2063       { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x04,0x01,0x02,0x02,0x02,0x02,0x03,0x00 }, },
2064     { { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x0D,0x01,0x03,0x01,0x02,0x02,0x51,0x01 }, // DV50 625/50
2065       { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x04,0x01,0x02,0x02,0x02,0x02,0x04,0x00 }, },
2066     { { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x0D,0x01,0x03,0x01,0x02,0x02,0x60,0x01 }, // DV100 1080/60
2067       { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x04,0x01,0x02,0x02,0x02,0x02,0x05,0x00 }, },
2068     { { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x0D,0x01,0x03,0x01,0x02,0x02,0x61,0x01 }, // DV100 1080/50
2069       { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x04,0x01,0x02,0x02,0x02,0x02,0x06,0x00 }, },
2070     { { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x0D,0x01,0x03,0x01,0x02,0x02,0x62,0x01 }, // DV100 720/60
2071       { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x04,0x01,0x02,0x02,0x02,0x02,0x07,0x00 }, },
2072     { { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x0D,0x01,0x03,0x01,0x02,0x02,0x63,0x01 }, // DV100 720/50
2073       { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x04,0x01,0x02,0x02,0x02,0x02,0x08,0x00 }, },
2074 };
2075
2076 static int mxf_parse_dv_frame(AVFormatContext *s, AVStream *st, AVPacket *pkt)
2077 {
2078     MXFContext *mxf = s->priv_data;
2079     MXFStreamContext *sc = st->priv_data;
2080     uint8_t *vs_pack, *vsc_pack;
2081     int apt, ul_index, stype, pal;
2082
2083     if (mxf->header_written)
2084         return 1;
2085
2086     // Check for minimal frame size
2087     if (pkt->size < 120000)
2088         return -1;
2089
2090     apt      = pkt->data[4] & 0x7;
2091     vs_pack  = pkt->data + 80*5 + 48;
2092     vsc_pack = pkt->data + 80*5 + 53;
2093     stype    = vs_pack[3] & 0x1f;
2094     pal      = (vs_pack[3] >> 5) & 0x1;
2095
2096     if ((vsc_pack[2] & 0x07) == 0x02) {
2097         sc->aspect_ratio = (AVRational){ 16, 9 };
2098     } else {
2099         sc->aspect_ratio = (AVRational){ 4, 3 };
2100     }
2101
2102     sc->interlaced = (vsc_pack[3] >> 4) & 0x01;
2103     // TODO: fix dv encoder to set proper FF/FS value in VSC pack
2104     // and set field dominance accordingly
2105     // av_log(s, AV_LOG_DEBUG, "DV vsc pack ff/ss = %x\n", vsc_pack[2] >> 6);
2106
2107     switch (stype) {
2108     case 0x18: // DV100 720p
2109         ul_index = 8+pal;
2110         if (sc->interlaced) {
2111             av_log(s, AV_LOG_ERROR, "source marked as interlaced but codec profile is progressive\n");
2112             sc->interlaced = 0;
2113         }
2114         break;
2115     case 0x14: // DV100 1080i
2116         ul_index = 6+pal;
2117         break;
2118     case 0x04: // DV50
2119         ul_index = 4+pal;
2120         break;
2121     default: // DV25
2122         if (!apt) { // IEC
2123             ul_index = 0+pal;
2124         } else {
2125             ul_index = 2+pal;
2126         }
2127     }
2128
2129     sc->container_ul = &mxf_dv_uls[ul_index].container_ul;
2130     sc->codec_ul = &mxf_dv_uls[ul_index].codec_ul;
2131
2132     sc->frame_size = pkt->size;
2133
2134     return 1;
2135 }
2136
2137 static const struct {
2138     UID uid;
2139     int frame_size;
2140     int profile;
2141     uint8_t interlaced;
2142     int intra_only; // 1 or 0 when there are separate UIDs for Long GOP and Intra, -1 when Intra/LGOP detection can be ignored
2143 } mxf_h264_codec_uls[] = {
2144     {{ 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x0a,0x04,0x01,0x02,0x02,0x01,0x31,0x11,0x01 },      0,  66, 0, -1 }, // AVC Baseline
2145     {{ 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x0a,0x04,0x01,0x02,0x02,0x01,0x31,0x20,0x01 },      0,  77, 0, -1 }, // AVC Main
2146     {{ 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x0a,0x04,0x01,0x02,0x02,0x01,0x31,0x30,0x01 },      0,  88, 0, -1 }, // AVC Extended
2147     {{ 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x0a,0x04,0x01,0x02,0x02,0x01,0x31,0x40,0x01 },      0, 100, 0, -1 }, // AVC High
2148     {{ 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x0a,0x04,0x01,0x02,0x02,0x01,0x31,0x50,0x01 },      0, 110, 0,  0 }, // AVC High 10
2149     {{ 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x0a,0x04,0x01,0x02,0x02,0x01,0x31,0x60,0x01 },      0, 122, 0,  0 }, // AVC High 422
2150     {{ 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x0a,0x04,0x01,0x02,0x02,0x01,0x31,0x70,0x01 },      0, 244, 0,  0 }, // AVC High 444
2151     {{ 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x0a,0x04,0x01,0x02,0x02,0x01,0x32,0x20,0x01 },      0, 110, 0,  1 }, // AVC High 10 Intra
2152     {{ 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x0a,0x04,0x01,0x02,0x02,0x01,0x32,0x21,0x01 }, 232960, 110, 1,  1 }, // AVC High 10 Intra RP2027 Class 50 1080/59.94i
2153     {{ 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x0a,0x04,0x01,0x02,0x02,0x01,0x32,0x21,0x02 }, 281088, 110, 1,  1 }, // AVC High 10 Intra RP2027 Class 50 1080/50i
2154     {{ 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x0a,0x04,0x01,0x02,0x02,0x01,0x32,0x21,0x03 }, 232960, 110, 0,  1 }, // AVC High 10 Intra RP2027 Class 50 1080/29.97p
2155     {{ 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x0a,0x04,0x01,0x02,0x02,0x01,0x32,0x21,0x04 }, 281088, 110, 0,  1 }, // AVC High 10 Intra RP2027 Class 50 1080/25p
2156     {{ 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x0a,0x04,0x01,0x02,0x02,0x01,0x32,0x21,0x08 }, 116736, 110, 0,  1 }, // AVC High 10 Intra RP2027 Class 50 720/59.94p
2157     {{ 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x0a,0x04,0x01,0x02,0x02,0x01,0x32,0x21,0x09 }, 140800, 110, 0,  1 }, // AVC High 10 Intra RP2027 Class 50 720/50p
2158     {{ 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x0a,0x04,0x01,0x02,0x02,0x01,0x32,0x30,0x01 },      0, 122, 0,  1 }, // AVC High 422 Intra
2159     {{ 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x0a,0x04,0x01,0x02,0x02,0x01,0x32,0x31,0x01 }, 472576, 122, 1,  1 }, // AVC High 422 Intra RP2027 Class 100 1080/59.94i
2160     {{ 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x0a,0x04,0x01,0x02,0x02,0x01,0x32,0x31,0x02 }, 568832, 122, 1,  1 }, // AVC High 422 Intra RP2027 Class 100 1080/50i
2161     {{ 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x0a,0x04,0x01,0x02,0x02,0x01,0x32,0x31,0x03 }, 472576, 122, 0,  1 }, // AVC High 422 Intra RP2027 Class 100 1080/29.97p
2162     {{ 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x0a,0x04,0x01,0x02,0x02,0x01,0x32,0x31,0x04 }, 568832, 122, 0,  1 }, // AVC High 422 Intra RP2027 Class 100 1080/25p
2163     {{ 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x0a,0x04,0x01,0x02,0x02,0x01,0x32,0x31,0x08 }, 236544, 122, 0,  1 }, // AVC High 422 Intra RP2027 Class 100 720/59.94p
2164     {{ 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x0a,0x04,0x01,0x02,0x02,0x01,0x32,0x31,0x09 }, 284672, 122, 0,  1 }, // AVC High 422 Intra RP2027 Class 100 720/50p
2165     {{ 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x0d,0x04,0x01,0x02,0x02,0x01,0x32,0x40,0x01 },      0, 244, 0,  1 }, // AVC High 444 Intra
2166     {{ 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x0d,0x04,0x01,0x02,0x02,0x01,0x32,0x50,0x01 },      0,  44, 0, -1 }, // AVC CAVLC 444
2167 };
2168
2169 static int mxf_parse_h264_frame(AVFormatContext *s, AVStream *st,
2170                                 AVPacket *pkt, MXFIndexEntry *e)
2171 {
2172     MXFContext *mxf = s->priv_data;
2173     MXFStreamContext *sc = st->priv_data;
2174     H264SPS seq, *const sps = &seq;
2175     GetBitContext gb;
2176     const uint8_t *buf = pkt->data;
2177     const uint8_t *buf_end = pkt->data + pkt->size;
2178     const uint8_t *nal_end;
2179     uint32_t state = -1;
2180     int extra_size = 512; // support AVC Intra files without SPS/PPS header
2181     int i, frame_size, slice_type, has_sps = 0, intra_only = 0, ret;
2182
2183     for (;;) {
2184         buf = avpriv_find_start_code(buf, buf_end, &state);
2185         if (buf >= buf_end)
2186             break;
2187
2188         switch (state & 0x1f) {
2189         case H264_NAL_SPS:
2190             e->flags |= 0x40;
2191
2192             if (mxf->header_written)
2193                 break;
2194
2195             nal_end = ff_avc_find_startcode(buf, buf_end);
2196             ret = ff_avc_decode_sps(sps, buf, nal_end - buf);
2197             if (ret < 0) {
2198                 av_log(s, AV_LOG_ERROR, "error parsing sps\n");
2199                 return 0;
2200             }
2201             has_sps = 1;
2202
2203             sc->aspect_ratio.num = st->codecpar->width * sps->sar.num;
2204             sc->aspect_ratio.den = st->codecpar->height * sps->sar.den;
2205             av_reduce(&sc->aspect_ratio.num, &sc->aspect_ratio.den,
2206                       sc->aspect_ratio.num, sc->aspect_ratio.den, 1024*1024);
2207             intra_only = (sps->constraint_set_flags >> 3) & 1;
2208             sc->interlaced = !sps->frame_mbs_only_flag;
2209             sc->component_depth = sps->bit_depth_luma;
2210
2211             buf = nal_end;
2212             break;
2213         case H264_NAL_PPS:
2214             if (e->flags & 0x40) { // sequence header present
2215                 e->flags |= 0x80; // random access
2216                 extra_size = 0;
2217             }
2218             break;
2219         case H264_NAL_IDR_SLICE:
2220             e->flags |= 0x04; // IDR Picture
2221             buf = buf_end;
2222             break;
2223         case H264_NAL_SLICE:
2224             init_get_bits8(&gb, buf, buf_end - buf);
2225             get_ue_golomb_long(&gb); // skip first_mb_in_slice
2226             slice_type = get_ue_golomb_31(&gb);
2227             switch (slice_type % 5) {
2228             case 0:
2229                 e->flags |= 0x20; // P Picture
2230                 e->flags |= 0x06; // P Picture
2231                 break;
2232             case 1:
2233                 e->flags |= 0x30; // B Picture
2234                 e->flags |= 0x03; // non-referenced B Picture
2235                 break;
2236             }
2237             buf = buf_end;
2238             break;
2239         default:
2240             break;
2241         }
2242     }
2243
2244     if (mxf->header_written)
2245         return 1;
2246
2247     if (!has_sps)
2248         sc->interlaced = st->codecpar->field_order != AV_FIELD_PROGRESSIVE ? 1 : 0;
2249     sc->codec_ul = NULL;
2250     frame_size = pkt->size + extra_size;
2251
2252     for (i = 0; i < FF_ARRAY_ELEMS(mxf_h264_codec_uls); i++) {
2253         if (frame_size == mxf_h264_codec_uls[i].frame_size && sc->interlaced == mxf_h264_codec_uls[i].interlaced) {
2254             sc->codec_ul = &mxf_h264_codec_uls[i].uid;
2255             sc->component_depth = 10; // AVC Intra is always 10 Bit
2256             sc->aspect_ratio = (AVRational){ 16, 9 }; // 16:9 is mandatory for broadcast HD
2257             st->codecpar->profile = mxf_h264_codec_uls[i].profile;
2258             sc->avc_intra = 1;
2259             mxf->cbr_index = 1;
2260             sc->frame_size = pkt->size;
2261             if (sc->interlaced)
2262                 sc->field_dominance = 1; // top field first is mandatory for AVC Intra
2263             break;
2264         } else if (has_sps && mxf_h264_codec_uls[i].frame_size == 0 &&
2265                    mxf_h264_codec_uls[i].profile == sps->profile_idc &&
2266                    (mxf_h264_codec_uls[i].intra_only < 0 ||
2267                     mxf_h264_codec_uls[i].intra_only == intra_only)) {
2268             sc->codec_ul = &mxf_h264_codec_uls[i].uid;
2269             st->codecpar->profile = sps->profile_idc;
2270             st->codecpar->level = sps->level_idc;
2271             // continue to check for avc intra
2272         }
2273     }
2274
2275     if (!sc->codec_ul) {
2276         av_log(s, AV_LOG_ERROR, "h264 profile not supported\n");
2277         return 0;
2278     }
2279
2280     return 1;
2281 }
2282
2283 static const UID mxf_mpeg2_codec_uls[] = {
2284     { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x03,0x04,0x01,0x02,0x02,0x01,0x01,0x10,0x00 }, // MP-ML I-Frame
2285     { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x03,0x04,0x01,0x02,0x02,0x01,0x01,0x11,0x00 }, // MP-ML Long GOP
2286     { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x03,0x04,0x01,0x02,0x02,0x01,0x02,0x02,0x00 }, // 422P-ML I-Frame
2287     { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x03,0x04,0x01,0x02,0x02,0x01,0x02,0x03,0x00 }, // 422P-ML Long GOP
2288     { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x03,0x04,0x01,0x02,0x02,0x01,0x03,0x02,0x00 }, // MP-HL I-Frame
2289     { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x03,0x04,0x01,0x02,0x02,0x01,0x03,0x03,0x00 }, // MP-HL Long GOP
2290     { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x03,0x04,0x01,0x02,0x02,0x01,0x04,0x02,0x00 }, // 422P-HL I-Frame
2291     { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x03,0x04,0x01,0x02,0x02,0x01,0x04,0x03,0x00 }, // 422P-HL Long GOP
2292     { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x03,0x04,0x01,0x02,0x02,0x01,0x05,0x02,0x00 }, // MP@H-14 I-Frame
2293     { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x03,0x04,0x01,0x02,0x02,0x01,0x05,0x03,0x00 }, // MP@H-14 Long GOP
2294 };
2295
2296 static const UID *mxf_get_mpeg2_codec_ul(AVCodecParameters *par)
2297 {
2298     int long_gop = 1;
2299
2300     if (par->profile == 4) { // Main
2301         if (par->level == 8) // Main
2302             return &mxf_mpeg2_codec_uls[0+long_gop];
2303         else if (par->level == 4) // High
2304             return &mxf_mpeg2_codec_uls[4+long_gop];
2305         else if (par->level == 6) // High 14
2306             return &mxf_mpeg2_codec_uls[8+long_gop];
2307     } else if (par->profile == 0) { // 422
2308         if (par->level == 5) // Main
2309             return &mxf_mpeg2_codec_uls[2+long_gop];
2310         else if (par->level == 2) // High
2311             return &mxf_mpeg2_codec_uls[6+long_gop];
2312     }
2313     return NULL;
2314 }
2315
2316 static int mxf_parse_mpeg2_frame(AVFormatContext *s, AVStream *st,
2317                                  AVPacket *pkt, MXFIndexEntry *e)
2318 {
2319     MXFStreamContext *sc = st->priv_data;
2320     uint32_t c = -1;
2321     int i;
2322
2323     for(i = 0; i < pkt->size - 4; i++) {
2324         c = (c<<8) + pkt->data[i];
2325         if (c == 0x1b5) {
2326             if ((pkt->data[i+1] & 0xf0) == 0x10) { // seq ext
2327                 st->codecpar->profile = pkt->data[i+1] & 0x07;
2328                 st->codecpar->level   = pkt->data[i+2] >> 4;
2329                 sc->low_delay = pkt->data[i+6] >> 7;
2330             } else if (i + 5 < pkt->size && (pkt->data[i+1] & 0xf0) == 0x80) { // pict coding ext
2331                 sc->interlaced = !(pkt->data[i+5] & 0x80); // progressive frame
2332                 if (sc->interlaced)
2333                     sc->field_dominance = 1 + !(pkt->data[i+4] & 0x80); // top field first
2334                 break;
2335             }
2336         } else if (c == 0x1b8) { // gop
2337             if (pkt->data[i+4]>>6 & 0x01) { // closed
2338                 if (sc->seq_closed_gop == -1)
2339                     sc->seq_closed_gop = 1;
2340                 sc->closed_gop = 1;
2341                 if (e->flags & 0x40) // sequence header present
2342                     e->flags |= 0x80; // random access
2343             } else {
2344                 sc->seq_closed_gop = 0;
2345                 sc->closed_gop = 0;
2346             }
2347         } else if (c == 0x1b3) { // seq
2348             e->flags |= 0x40;
2349             switch ((pkt->data[i+4]>>4) & 0xf) {
2350             case 2:  sc->aspect_ratio = (AVRational){  4,  3}; break;
2351             case 3:  sc->aspect_ratio = (AVRational){ 16,  9}; break;
2352             case 4:  sc->aspect_ratio = (AVRational){221,100}; break;
2353             default:
2354                 av_reduce(&sc->aspect_ratio.num, &sc->aspect_ratio.den,
2355                           st->codecpar->width, st->codecpar->height, 1024*1024);
2356             }
2357         } else if (c == 0x100) { // pic
2358             int pict_type = (pkt->data[i+2]>>3) & 0x07;
2359             e->temporal_ref = (pkt->data[i+1]<<2) | (pkt->data[i+2]>>6);
2360             if (pict_type == 2) { // P-frame
2361                 e->flags |= 0x22;
2362                 sc->closed_gop = 0; // reset closed GOP, don't matter anymore
2363             } else if (pict_type == 3) { // B-frame
2364                 if (sc->closed_gop)
2365                     e->flags |= 0x13; // only backward prediction
2366                 else
2367                     e->flags |= 0x33;
2368                 sc->temporal_reordering = -1;
2369             } else if (!pict_type) {
2370                 av_log(s, AV_LOG_ERROR, "error parsing mpeg2 frame\n");
2371                 return 0;
2372             }
2373         }
2374     }
2375     if (s->oformat != &ff_mxf_d10_muxer)
2376         sc->codec_ul = mxf_get_mpeg2_codec_ul(st->codecpar);
2377     return !!sc->codec_ul;
2378 }
2379
2380 static uint64_t mxf_parse_timestamp(int64_t timestamp64)
2381 {
2382     time_t timestamp = timestamp64 / 1000000;
2383     struct tm tmbuf;
2384     struct tm *time = gmtime_r(&timestamp, &tmbuf);
2385     if (!time)
2386         return 0;
2387     return (uint64_t)(time->tm_year+1900) << 48 |
2388            (uint64_t)(time->tm_mon+1)     << 40 |
2389            (uint64_t) time->tm_mday       << 32 |
2390                       time->tm_hour       << 24 |
2391                       time->tm_min        << 16 |
2392                       time->tm_sec        << 8  |
2393                       (timestamp64 % 1000000) / 4000;
2394 }
2395
2396 static void mxf_gen_umid(AVFormatContext *s)
2397 {
2398     MXFContext *mxf = s->priv_data;
2399     uint32_t seed = av_get_random_seed();
2400     uint64_t umid = seed + 0x5294713400000000LL;
2401
2402     AV_WB64(mxf->umid  , umid);
2403     AV_WB64(mxf->umid+8, umid>>8);
2404
2405     mxf->instance_number = seed & 0xFFFFFF;
2406 }
2407
2408 static int mxf_init_timecode(AVFormatContext *s, AVStream *st, AVRational tbc)
2409 {
2410     MXFContext *mxf = s->priv_data;
2411     AVDictionaryEntry *tcr = av_dict_get(s->metadata, "timecode", NULL, 0);
2412
2413     if (!ff_mxf_get_content_package_rate(tbc)) {
2414         if (s->strict_std_compliance > FF_COMPLIANCE_UNOFFICIAL) {
2415             av_log(s, AV_LOG_ERROR, "Unsupported frame rate %d/%d. Set -strict option to 'unofficial' or lower in order to allow it!\n", tbc.den, tbc.num);
2416             return AVERROR(EINVAL);
2417         } else {
2418             av_log(s, AV_LOG_WARNING, "Unofficial frame rate %d/%d.\n", tbc.den, tbc.num);
2419         }
2420     }
2421
2422     mxf->timecode_base = (tbc.den + tbc.num/2) / tbc.num;
2423     if (!tcr)
2424         tcr = av_dict_get(st->metadata, "timecode", NULL, 0);
2425
2426     if (tcr)
2427         return av_timecode_init_from_string(&mxf->tc, av_inv_q(tbc), tcr->value, s);
2428     else
2429         return av_timecode_init(&mxf->tc, av_inv_q(tbc), 0, 0, s);
2430 }
2431
2432 static int mxf_write_header(AVFormatContext *s)
2433 {
2434     MXFContext *mxf = s->priv_data;
2435     int i, ret;
2436     uint8_t present[FF_ARRAY_ELEMS(mxf_essence_container_uls)] = {0};
2437     int64_t timestamp = 0;
2438
2439     if (!s->nb_streams)
2440         return -1;
2441
2442     if (s->oformat == &ff_mxf_opatom_muxer && s->nb_streams !=1) {
2443         av_log(s, AV_LOG_ERROR, "there must be exactly one stream for mxf opatom\n");
2444         return -1;
2445     }
2446
2447     if (!av_dict_get(s->metadata, "comment_", NULL, AV_DICT_IGNORE_SUFFIX))
2448         mxf->store_user_comments = 0;
2449
2450     for (i = 0; i < s->nb_streams; i++) {
2451         AVStream *st = s->streams[i];
2452         MXFStreamContext *sc = av_mallocz(sizeof(*sc));
2453         if (!sc)
2454             return AVERROR(ENOMEM);
2455         st->priv_data = sc;
2456         sc->index = -1;
2457
2458         if (((i == 0) ^ (st->codecpar->codec_type == AVMEDIA_TYPE_VIDEO)) && s->oformat != &ff_mxf_opatom_muxer) {
2459             av_log(s, AV_LOG_ERROR, "there must be exactly one video stream and it must be the first one\n");
2460             return -1;
2461         }
2462
2463         if (st->codecpar->codec_type == AVMEDIA_TYPE_VIDEO) {
2464             const AVPixFmtDescriptor *pix_desc = av_pix_fmt_desc_get(st->codecpar->format);
2465             // TODO: should be avg_frame_rate
2466             AVRational tbc = st->time_base;
2467             // Default component depth to 8
2468             sc->component_depth = 8;
2469             sc->h_chroma_sub_sample = 2;
2470             sc->v_chroma_sub_sample = 2;
2471             sc->color_siting = 0xFF;
2472
2473             if (st->codecpar->sample_aspect_ratio.num && st->codecpar->sample_aspect_ratio.den) {
2474                 sc->aspect_ratio = av_mul_q(st->codecpar->sample_aspect_ratio,
2475                                             av_make_q(st->codecpar->width, st->codecpar->height));
2476             }
2477
2478             if (pix_desc) {
2479                 sc->component_depth     = pix_desc->comp[0].depth;
2480                 sc->h_chroma_sub_sample = 1 << pix_desc->log2_chroma_w;
2481                 sc->v_chroma_sub_sample = 1 << pix_desc->log2_chroma_h;
2482             }
2483             switch (ff_choose_chroma_location(s, st)) {
2484             case AVCHROMA_LOC_TOPLEFT: sc->color_siting = 0; break;
2485             case AVCHROMA_LOC_LEFT:    sc->color_siting = 6; break;
2486             case AVCHROMA_LOC_TOP:     sc->color_siting = 1; break;
2487             case AVCHROMA_LOC_CENTER:  sc->color_siting = 3; break;
2488             }
2489
2490             mxf->content_package_rate = ff_mxf_get_content_package_rate(tbc);
2491             mxf->time_base = tbc;
2492             avpriv_set_pts_info(st, 64, mxf->time_base.num, mxf->time_base.den);
2493             if((ret = mxf_init_timecode(s, st, tbc)) < 0)
2494                 return ret;
2495
2496             if (st->codecpar->codec_id == AV_CODEC_ID_MPEG2VIDEO) {
2497                 sc->seq_closed_gop = -1; // unknown yet
2498             }
2499
2500             sc->video_bit_rate = st->codecpar->bit_rate;
2501
2502             if (s->oformat == &ff_mxf_d10_muxer ||
2503                 st->codecpar->codec_id == AV_CODEC_ID_DNXHD ||
2504                 st->codecpar->codec_id == AV_CODEC_ID_DVVIDEO)
2505                 mxf->cbr_index = 1;
2506
2507             if (s->oformat == &ff_mxf_d10_muxer) {
2508                 int ntsc = mxf->time_base.den != 25;
2509                 int ul_index;
2510
2511                 if (st->codecpar->codec_id != AV_CODEC_ID_MPEG2VIDEO) {
2512                     av_log(s, AV_LOG_ERROR, "error MXF D-10 only support MPEG-2 Video\n");
2513                     return AVERROR(EINVAL);
2514                 }
2515                 if ((sc->video_bit_rate == 50000000) && (mxf->time_base.den == 25)) {
2516                     ul_index = 0;
2517                 } else if ((sc->video_bit_rate == 49999840 || sc->video_bit_rate == 50000000) && ntsc) {
2518                     ul_index = 1;
2519                 } else if (sc->video_bit_rate == 40000000) {
2520                     ul_index = 2+ntsc;
2521                 } else if (sc->video_bit_rate == 30000000) {
2522                     ul_index = 4+ntsc;
2523                 } else {
2524                     av_log(s, AV_LOG_ERROR, "error MXF D-10 only support 30/40/50 mbit/s\n");
2525                     return -1;
2526                 }
2527
2528                 sc->codec_ul = &mxf_d10_codec_uls[ul_index];
2529                 sc->container_ul = &mxf_d10_container_uls[ul_index];
2530                 sc->index = INDEX_D10_VIDEO;
2531                 sc->signal_standard = 1;
2532                 sc->color_siting = 0;
2533                 sc->frame_size = (int64_t)sc->video_bit_rate *
2534                     mxf->time_base.num / (8*mxf->time_base.den);
2535             }
2536             if (mxf->signal_standard >= 0)
2537                 sc->signal_standard = mxf->signal_standard;
2538         } else if (st->codecpar->codec_type == AVMEDIA_TYPE_AUDIO) {
2539             char bsf_arg[32];
2540             if (st->codecpar->sample_rate != 48000) {
2541                 av_log(s, AV_LOG_ERROR, "only 48khz is implemented\n");
2542                 return -1;
2543             }
2544             avpriv_set_pts_info(st, 64, 1, st->codecpar->sample_rate);
2545             if (s->oformat == &ff_mxf_d10_muxer) {
2546                 if (st->index != 1) {
2547                     av_log(s, AV_LOG_ERROR, "MXF D-10 only support one audio track\n");
2548                     return -1;
2549                 }
2550                 if (st->codecpar->codec_id != AV_CODEC_ID_PCM_S16LE &&
2551                     st->codecpar->codec_id != AV_CODEC_ID_PCM_S24LE) {
2552                     av_log(s, AV_LOG_ERROR, "MXF D-10 only support 16 or 24 bits le audio\n");
2553                 }
2554                 sc->index = INDEX_D10_AUDIO;
2555                 sc->container_ul = ((MXFStreamContext*)s->streams[0]->priv_data)->container_ul;
2556                 sc->frame_size = 4 + 8 * av_rescale_rnd(st->codecpar->sample_rate, mxf->time_base.num, mxf->time_base.den, AV_ROUND_UP) * 4;
2557             } else if (s->oformat == &ff_mxf_opatom_muxer) {
2558                 AVRational tbc = av_inv_q(mxf->audio_edit_rate);
2559
2560                 if (st->codecpar->codec_id != AV_CODEC_ID_PCM_S16LE &&
2561                     st->codecpar->codec_id != AV_CODEC_ID_PCM_S24LE) {
2562                     av_log(s, AV_LOG_ERROR, "Only pcm_s16le and pcm_s24le audio codecs are implemented\n");
2563                     return AVERROR_PATCHWELCOME;
2564                 }
2565                 if (st->codecpar->channels != 1) {
2566                     av_log(s, AV_LOG_ERROR, "MXF OPAtom only supports single channel audio\n");
2567                     return AVERROR(EINVAL);
2568                 }
2569
2570                 mxf->time_base = st->time_base;
2571                 if((ret = mxf_init_timecode(s, st, tbc)) < 0)
2572                     return ret;
2573
2574                 mxf->edit_unit_byte_count = (av_get_bits_per_sample(st->codecpar->codec_id) * st->codecpar->channels) >> 3;
2575                 sc->index = INDEX_WAV;
2576             } else {
2577                 mxf->slice_count = 1;
2578                 sc->frame_size = st->codecpar->channels *
2579                                  av_rescale_rnd(st->codecpar->sample_rate, mxf->time_base.num, mxf->time_base.den, AV_ROUND_UP) *
2580                                  av_get_bits_per_sample(st->codecpar->codec_id) / 8;
2581             }
2582             snprintf(bsf_arg, sizeof(bsf_arg), "r=%d/%d", mxf->tc.rate.num, mxf->tc.rate.den);
2583             ret = ff_stream_add_bitstream_filter(st, "pcm_rechunk", bsf_arg);
2584             if (ret < 0)
2585                 return ret;
2586         } else if (st->codecpar->codec_type == AVMEDIA_TYPE_DATA) {
2587             AVDictionaryEntry *e = av_dict_get(st->metadata, "data_type", NULL, 0);
2588             if (e && !strcmp(e->value, "vbi_vanc_smpte_436M")) {
2589                 sc->index = INDEX_S436M;
2590             } else {
2591                 av_log(s, AV_LOG_ERROR, "track %d: unsupported data type\n", i);
2592                 return -1;
2593             }
2594             if (st->index != s->nb_streams - 1) {
2595                 av_log(s, AV_LOG_ERROR, "data track must be placed last\n");
2596                 return -1;
2597             }
2598         }
2599
2600         if (sc->index == -1) {
2601             sc->index = mxf_get_essence_container_ul_index(st->codecpar->codec_id);
2602             if (sc->index == -1) {
2603                 av_log(s, AV_LOG_ERROR, "track %d: could not find essence container ul, "
2604                        "codec not currently supported in container\n", i);
2605                 return -1;
2606             }
2607         }
2608
2609         if (!sc->codec_ul)
2610             sc->codec_ul = &mxf_essence_container_uls[sc->index].codec_ul;
2611         if (!sc->container_ul)
2612             sc->container_ul = &mxf_essence_container_uls[sc->index].container_ul;
2613
2614         memcpy(sc->track_essence_element_key, mxf_essence_container_uls[sc->index].element_ul, 15);
2615         sc->track_essence_element_key[15] = present[sc->index];
2616         PRINT_KEY(s, "track essence element key", sc->track_essence_element_key);
2617
2618         if (!present[sc->index])
2619             mxf->essence_container_count++;
2620         present[sc->index]++;
2621     }
2622
2623     if (s->oformat == &ff_mxf_d10_muxer || s->oformat == &ff_mxf_opatom_muxer) {
2624         mxf->essence_container_count = 1;
2625     }
2626
2627     if (!(s->flags & AVFMT_FLAG_BITEXACT))
2628         mxf_gen_umid(s);
2629
2630     for (i = 0; i < s->nb_streams; i++) {
2631         MXFStreamContext *sc = s->streams[i]->priv_data;
2632         // update element count
2633         sc->track_essence_element_key[13] = present[sc->index];
2634         if (!memcmp(sc->track_essence_element_key, mxf_essence_container_uls[INDEX_DV].element_ul, 13)) // DV
2635             sc->order = (0x15 << 24) | AV_RB32(sc->track_essence_element_key+13);
2636         else
2637             sc->order = AV_RB32(sc->track_essence_element_key+12);
2638     }
2639
2640     if (ff_parse_creation_time_metadata(s, &timestamp, 0) > 0)
2641         mxf->timestamp = mxf_parse_timestamp(timestamp);
2642     mxf->duration = -1;
2643
2644     mxf->timecode_track = av_mallocz(sizeof(*mxf->timecode_track));
2645     if (!mxf->timecode_track)
2646         return AVERROR(ENOMEM);
2647     mxf->timecode_track->priv_data = av_mallocz(sizeof(MXFStreamContext));
2648     if (!mxf->timecode_track->priv_data)
2649         return AVERROR(ENOMEM);
2650     mxf->timecode_track->index = -1;
2651
2652     return 0;
2653 }
2654
2655 static const uint8_t system_metadata_pack_key[]        = { 0x06,0x0E,0x2B,0x34,0x02,0x05,0x01,0x01,0x0D,0x01,0x03,0x01,0x04,0x01,0x01,0x00 };
2656 static const uint8_t system_metadata_package_set_key[] = { 0x06,0x0E,0x2B,0x34,0x02,0x43,0x01,0x01,0x0D,0x01,0x03,0x01,0x04,0x01,0x02,0x01 };
2657
2658 static void mxf_write_system_item(AVFormatContext *s)
2659 {
2660     MXFContext *mxf = s->priv_data;
2661     AVIOContext *pb = s->pb;
2662     unsigned frame;
2663     uint32_t time_code;
2664     int i, system_item_bitmap = 0x58; // UL, user date/time stamp, picture present
2665
2666     frame = mxf->last_indexed_edit_unit + mxf->edit_units_count;
2667
2668     // write system metadata pack
2669     avio_write(pb, system_metadata_pack_key, 16);
2670     klv_encode_ber4_length(pb, 57);
2671
2672     for (i = 0; i < s->nb_streams; i++) {
2673         if (s->streams[i]->codecpar->codec_type == AVMEDIA_TYPE_AUDIO)
2674             system_item_bitmap |= 0x4;
2675         else if (s->streams[i]->codecpar->codec_type == AVMEDIA_TYPE_DATA)
2676             system_item_bitmap |= 0x2;
2677     }
2678     avio_w8(pb, system_item_bitmap);
2679     avio_w8(pb, mxf->content_package_rate); // content package rate
2680     avio_w8(pb, 0x00); // content package type
2681     avio_wb16(pb, 0x00); // channel handle
2682     avio_wb16(pb, frame & 0xFFFF); // continuity count, supposed to overflow
2683     if (mxf->essence_container_count > 1)
2684         avio_write(pb, multiple_desc_ul, 16);
2685     else {
2686         MXFStreamContext *sc = s->streams[0]->priv_data;
2687         avio_write(pb, *sc->container_ul, 16);
2688     }
2689     avio_w8(pb, 0);
2690     avio_wb64(pb, 0);
2691     avio_wb64(pb, 0); // creation date/time stamp
2692
2693     avio_w8(pb, 0x81); // SMPTE 12M time code
2694     time_code = av_timecode_get_smpte_from_framenum(&mxf->tc, frame);
2695     avio_wb32(pb, time_code);
2696     avio_wb32(pb, 0); // binary group data
2697     avio_wb64(pb, 0);
2698
2699     // write system metadata package set
2700     avio_write(pb, system_metadata_package_set_key, 16);
2701     klv_encode_ber4_length(pb, 35);
2702     avio_w8(pb, 0x83); // UMID
2703     avio_wb16(pb, 0x20);
2704     mxf_write_umid(s, 1);
2705 }
2706
2707 static void mxf_write_d10_audio_packet(AVFormatContext *s, AVStream *st, AVPacket *pkt)
2708 {
2709     MXFContext *mxf = s->priv_data;
2710     AVIOContext *pb = s->pb;
2711     int frame_size = pkt->size / st->codecpar->block_align;
2712     uint8_t *samples = pkt->data;
2713     uint8_t *end = pkt->data + pkt->size;
2714     int i;
2715
2716     klv_encode_ber4_length(pb, 4 + frame_size*4*8);
2717
2718     avio_w8(pb, (frame_size == 1920 ? 0 : (mxf->edit_units_count-1) % 5 + 1));
2719     avio_wl16(pb, frame_size);
2720     avio_w8(pb, (1<<st->codecpar->channels)-1);
2721
2722     while (samples < end) {
2723         for (i = 0; i < st->codecpar->channels; i++) {
2724             uint32_t sample;
2725             if (st->codecpar->codec_id == AV_CODEC_ID_PCM_S24LE) {
2726                 sample = AV_RL24(samples)<< 4;
2727                 samples += 3;
2728             } else {
2729                 sample = AV_RL16(samples)<<12;
2730                 samples += 2;
2731             }
2732             avio_wl32(pb, sample | i);
2733         }
2734         for (; i < 8; i++)
2735             avio_wl32(pb, i);
2736     }
2737 }
2738
2739 static int mxf_write_opatom_body_partition(AVFormatContext *s)
2740 {
2741     MXFContext *mxf = s->priv_data;
2742     AVIOContext *pb = s->pb;
2743     AVStream *st = s->streams[0];
2744     MXFStreamContext *sc = st->priv_data;
2745     const uint8_t *key = NULL;
2746
2747     int err;
2748
2749     if (!mxf->header_written)
2750         key = body_partition_key;
2751
2752     if ((err = mxf_write_partition(s, 1, 0, key, 0)) < 0)
2753         return err;
2754     mxf_write_klv_fill(s);
2755     avio_write(pb, sc->track_essence_element_key, 16);
2756     klv_encode_ber9_length(pb, mxf->body_offset);
2757     return 0;
2758 }
2759
2760 static int mxf_write_opatom_packet(AVFormatContext *s, AVPacket *pkt, MXFIndexEntry *ie)
2761 {
2762     MXFContext *mxf = s->priv_data;
2763     AVIOContext *pb = s->pb;
2764
2765     int err;
2766
2767     if (!mxf->header_written) {
2768         if ((err = mxf_write_partition(s, 0, 0, header_open_partition_key, 1)) < 0)
2769             return err;
2770         mxf_write_klv_fill(s);
2771
2772         if ((err = mxf_write_opatom_body_partition(s)) < 0)
2773             return err;
2774         mxf->header_written = 1;
2775     }
2776
2777     if (!mxf->edit_unit_byte_count) {
2778         mxf->index_entries[mxf->edit_units_count].offset = mxf->body_offset;
2779         mxf->index_entries[mxf->edit_units_count].flags = ie->flags;
2780         mxf->index_entries[mxf->edit_units_count].temporal_ref = ie->temporal_ref;
2781     }
2782     mxf->edit_units_count++;
2783     avio_write(pb, pkt->data, pkt->size);
2784     mxf->body_offset += pkt->size;
2785
2786     return 0;
2787 }
2788
2789 static void mxf_compute_edit_unit_byte_count(AVFormatContext *s)
2790 {
2791     MXFContext *mxf = s->priv_data;
2792     int i;
2793
2794     if (s->oformat == &ff_mxf_opatom_muxer) {
2795         MXFStreamContext *sc = s->streams[0]->priv_data;
2796         mxf->edit_unit_byte_count = sc->frame_size;
2797         return;
2798     }
2799
2800     mxf->edit_unit_byte_count = KAG_SIZE; // system element
2801     for (i = 0; i < s->nb_streams; i++) {
2802         AVStream *st = s->streams[i];
2803         MXFStreamContext *sc = st->priv_data;
2804         sc->slice_offset = mxf->edit_unit_byte_count;
2805         mxf->edit_unit_byte_count += 16 + 4 + sc->frame_size;
2806         mxf->edit_unit_byte_count += klv_fill_size(mxf->edit_unit_byte_count);
2807     }
2808 }
2809
2810 static int mxf_write_packet(AVFormatContext *s, AVPacket *pkt)
2811 {
2812     MXFContext *mxf = s->priv_data;
2813     AVIOContext *pb = s->pb;
2814     AVStream *st = s->streams[pkt->stream_index];
2815     MXFStreamContext *sc = st->priv_data;
2816     MXFIndexEntry ie = {0};
2817     int err;
2818
2819     if (!mxf->cbr_index && !mxf->edit_unit_byte_count && !(mxf->edit_units_count % EDIT_UNITS_PER_BODY)) {
2820         if ((err = av_reallocp_array(&mxf->index_entries, mxf->edit_units_count
2821                                      + EDIT_UNITS_PER_BODY, sizeof(*mxf->index_entries))) < 0) {
2822             mxf->edit_units_count = 0;
2823             av_log(s, AV_LOG_ERROR, "could not allocate index entries\n");
2824             return err;
2825         }
2826     }
2827
2828     if (st->codecpar->codec_id == AV_CODEC_ID_MPEG2VIDEO) {
2829         if (!mxf_parse_mpeg2_frame(s, st, pkt, &ie)) {
2830             av_log(s, AV_LOG_ERROR, "could not get mpeg2 profile and level\n");
2831             return -1;
2832         }
2833     } else if (st->codecpar->codec_id == AV_CODEC_ID_DNXHD) {
2834         if (!mxf_parse_dnxhd_frame(s, st, pkt)) {
2835             av_log(s, AV_LOG_ERROR, "could not get dnxhd profile\n");
2836             return -1;
2837         }
2838     } else if (st->codecpar->codec_id == AV_CODEC_ID_PRORES) {
2839         if (!mxf_parse_prores_frame(s, st, pkt)) {
2840             av_log(s, AV_LOG_ERROR, "could not get prores profile\n");
2841             return -1;
2842         }
2843     } else if (st->codecpar->codec_id == AV_CODEC_ID_DVVIDEO) {
2844         if (!mxf_parse_dv_frame(s, st, pkt)) {
2845             av_log(s, AV_LOG_ERROR, "could not get dv profile\n");
2846             return -1;
2847         }
2848     } else if (st->codecpar->codec_id == AV_CODEC_ID_H264) {
2849         if (!mxf_parse_h264_frame(s, st, pkt, &ie)) {
2850             av_log(s, AV_LOG_ERROR, "could not get h264 profile\n");
2851             return -1;
2852         }
2853     }
2854
2855     if (mxf->cbr_index) {
2856         if (pkt->size != sc->frame_size && st->codecpar->codec_type == AVMEDIA_TYPE_VIDEO) {
2857             av_log(s, AV_LOG_ERROR, "track %d: frame size does not match index unit size, %d != %d\n",
2858                    st->index, pkt->size, sc->frame_size);
2859             return -1;
2860         }
2861         if (!mxf->header_written)
2862             mxf_compute_edit_unit_byte_count(s);
2863     }
2864
2865     if (s->oformat == &ff_mxf_opatom_muxer)
2866         return mxf_write_opatom_packet(s, pkt, &ie);
2867
2868     if (!mxf->header_written) {
2869         if (mxf->edit_unit_byte_count) {
2870             if ((err = mxf_write_partition(s, 1, 2, header_open_partition_key, 1)) < 0)
2871                 return err;
2872             mxf_write_klv_fill(s);
2873             mxf_write_index_table_segment(s);
2874         } else {
2875             if ((err = mxf_write_partition(s, 0, 0, header_open_partition_key, 1)) < 0)
2876                 return err;
2877         }
2878         mxf->header_written = 1;
2879     }
2880
2881     if (st->index == 0) {
2882         if (!mxf->edit_unit_byte_count &&
2883             (!mxf->edit_units_count || mxf->edit_units_count > EDIT_UNITS_PER_BODY) &&
2884             !(ie.flags & 0x33)) { // I-frame, GOP start
2885             mxf_write_klv_fill(s);
2886             if ((err = mxf_write_partition(s, 1, 2, body_partition_key, 0)) < 0)
2887                 return err;
2888             mxf_write_klv_fill(s);
2889             mxf_write_index_table_segment(s);
2890         }
2891
2892         mxf_write_klv_fill(s);
2893         mxf_write_system_item(s);
2894
2895         if (!mxf->edit_unit_byte_count) {
2896             mxf->index_entries[mxf->edit_units_count].offset = mxf->body_offset;
2897             mxf->index_entries[mxf->edit_units_count].flags = ie.flags;
2898             mxf->index_entries[mxf->edit_units_count].temporal_ref = ie.temporal_ref;
2899             mxf->body_offset += KAG_SIZE; // size of system element
2900         }
2901         mxf->edit_units_count++;
2902     } else if (!mxf->edit_unit_byte_count && st->index == 1) {
2903         if (!mxf->edit_units_count) {
2904             av_log(s, AV_LOG_ERROR, "No packets in first stream\n");
2905             return AVERROR_PATCHWELCOME;
2906         }
2907         mxf->index_entries[mxf->edit_units_count-1].slice_offset =
2908             mxf->body_offset - mxf->index_entries[mxf->edit_units_count-1].offset;
2909     }
2910
2911     mxf_write_klv_fill(s);
2912     avio_write(pb, sc->track_essence_element_key, 16); // write key
2913     if (s->oformat == &ff_mxf_d10_muxer &&
2914         st->codecpar->codec_type == AVMEDIA_TYPE_AUDIO) {
2915         mxf_write_d10_audio_packet(s, st, pkt);
2916     } else {
2917         klv_encode_ber4_length(pb, pkt->size); // write length
2918         avio_write(pb, pkt->data, pkt->size);
2919         mxf->body_offset += 16+4+pkt->size + klv_fill_size(16+4+pkt->size);
2920     }
2921
2922     return 0;
2923 }
2924
2925 static void mxf_write_random_index_pack(AVFormatContext *s)
2926 {
2927     MXFContext *mxf = s->priv_data;
2928     AVIOContext *pb = s->pb;
2929     uint64_t pos = avio_tell(pb);
2930     int i;
2931
2932     avio_write(pb, random_index_pack_key, 16);
2933     klv_encode_ber_length(pb, 28 + 12LL*mxf->body_partitions_count);
2934
2935     if (mxf->edit_unit_byte_count && s->oformat != &ff_mxf_opatom_muxer)
2936         avio_wb32(pb, 1); // BodySID of header partition
2937     else
2938         avio_wb32(pb, 0);
2939     avio_wb64(pb, 0); // offset of header partition
2940
2941     for (i = 0; i < mxf->body_partitions_count; i++) {
2942         avio_wb32(pb, 1); // BodySID
2943         avio_wb64(pb, mxf->body_partition_offset[i]);
2944     }
2945
2946     avio_wb32(pb, 0); // BodySID of footer partition
2947     avio_wb64(pb, mxf->footer_partition_offset);
2948
2949     avio_wb32(pb, avio_tell(pb) - pos + 4);
2950 }
2951
2952 static int mxf_write_footer(AVFormatContext *s)
2953 {
2954     MXFContext *mxf = s->priv_data;
2955     AVIOContext *pb = s->pb;
2956     int i, err;
2957
2958     if (!mxf->header_written ||
2959         (s->oformat == &ff_mxf_opatom_muxer && !mxf->body_partition_offset)) {
2960         /* reason could be invalid options/not supported codec/out of memory */
2961         return AVERROR_UNKNOWN;
2962     }
2963
2964     mxf->duration = mxf->last_indexed_edit_unit + mxf->edit_units_count;
2965
2966     mxf_write_klv_fill(s);
2967     mxf->footer_partition_offset = avio_tell(pb);
2968     if (mxf->edit_unit_byte_count && s->oformat != &ff_mxf_opatom_muxer) { // no need to repeat index
2969         if ((err = mxf_write_partition(s, 0, 0, footer_partition_key, 0)) < 0)
2970             return err;
2971     } else {
2972         if ((err = mxf_write_partition(s, 0, 2, footer_partition_key, 0)) < 0)
2973             return err;
2974         mxf_write_klv_fill(s);
2975         mxf_write_index_table_segment(s);
2976     }
2977
2978     mxf_write_klv_fill(s);
2979     mxf_write_random_index_pack(s);
2980
2981     if (s->pb->seekable & AVIO_SEEKABLE_NORMAL) {
2982         if (s->oformat == &ff_mxf_opatom_muxer) {
2983             /* rewrite body partition to update lengths */
2984             avio_seek(pb, mxf->body_partition_offset[0], SEEK_SET);
2985             if ((err = mxf_write_opatom_body_partition(s)) < 0)
2986                 return err;
2987         }
2988
2989         avio_seek(pb, 0, SEEK_SET);
2990         if (mxf->edit_unit_byte_count && s->oformat != &ff_mxf_opatom_muxer) {
2991             if ((err = mxf_write_partition(s, 1, 2, header_closed_partition_key, 1)) < 0)
2992                 return err;
2993             mxf_write_klv_fill(s);
2994             mxf_write_index_table_segment(s);
2995         } else {
2996             if ((err = mxf_write_partition(s, 0, 0, header_closed_partition_key, 1)) < 0)
2997                 return err;
2998         }
2999         // update footer partition offset
3000         for (i = 0; i < mxf->body_partitions_count; i++) {
3001             avio_seek(pb, mxf->body_partition_offset[i]+44, SEEK_SET);
3002             avio_wb64(pb, mxf->footer_partition_offset);
3003         }
3004     }
3005
3006     return 0;
3007 }
3008
3009 static void mxf_deinit(AVFormatContext *s)
3010 {
3011     MXFContext *mxf = s->priv_data;
3012
3013     av_freep(&mxf->index_entries);
3014     av_freep(&mxf->body_partition_offset);
3015     if (mxf->timecode_track) {
3016         av_freep(&mxf->timecode_track->priv_data);
3017         av_freep(&mxf->timecode_track);
3018     }
3019 }
3020
3021 static int mxf_interleave_get_packet(AVFormatContext *s, AVPacket *out, AVPacket *pkt, int flush)
3022 {
3023     int i, stream_count = 0;
3024
3025     for (i = 0; i < s->nb_streams; i++)
3026         stream_count += !!s->streams[i]->last_in_packet_buffer;
3027
3028     if (stream_count && (s->nb_streams == stream_count || flush)) {
3029         AVPacketList *pktl = s->internal->packet_buffer;
3030         if (s->nb_streams != stream_count) {
3031             AVPacketList *last = NULL;
3032             // find last packet in edit unit
3033             while (pktl) {
3034                 if (!stream_count || pktl->pkt.stream_index == 0)
3035                     break;
3036                 // update last packet in packet buffer
3037                 if (s->streams[pktl->pkt.stream_index]->last_in_packet_buffer != pktl)
3038                     s->streams[pktl->pkt.stream_index]->last_in_packet_buffer = pktl;
3039                 last = pktl;
3040                 pktl = pktl->next;
3041                 stream_count--;
3042             }
3043             // purge packet queue
3044             while (pktl) {
3045                 AVPacketList *next = pktl->next;
3046                 av_packet_unref(&pktl->pkt);
3047                 av_freep(&pktl);
3048                 pktl = next;
3049             }
3050             if (last)
3051                 last->next = NULL;
3052             else {
3053                 s->internal->packet_buffer = NULL;
3054                 s->internal->packet_buffer_end= NULL;
3055                 goto out;
3056             }
3057             pktl = s->internal->packet_buffer;
3058         }
3059
3060         *out = pktl->pkt;
3061         av_log(s, AV_LOG_TRACE, "out st:%d dts:%"PRId64"\n", (*out).stream_index, (*out).dts);
3062         s->internal->packet_buffer = pktl->next;
3063         if(s->streams[pktl->pkt.stream_index]->last_in_packet_buffer == pktl)
3064             s->streams[pktl->pkt.stream_index]->last_in_packet_buffer= NULL;
3065         if(!s->internal->packet_buffer)
3066             s->internal->packet_buffer_end= NULL;
3067         av_freep(&pktl);
3068         return 1;
3069     } else {
3070     out:
3071         return 0;
3072     }
3073 }
3074
3075 static int mxf_compare_timestamps(AVFormatContext *s, const AVPacket *next,
3076                                                       const AVPacket *pkt)
3077 {
3078     MXFStreamContext *sc  = s->streams[pkt ->stream_index]->priv_data;
3079     MXFStreamContext *sc2 = s->streams[next->stream_index]->priv_data;
3080
3081     return next->dts > pkt->dts ||
3082         (next->dts == pkt->dts && sc->order < sc2->order);
3083 }
3084
3085 static int mxf_interleave(AVFormatContext *s, AVPacket *out, AVPacket *pkt, int flush)
3086 {
3087     int ret;
3088     if (pkt) {
3089         MXFStreamContext *sc = s->streams[pkt->stream_index]->priv_data;
3090         pkt->pts = pkt->dts = sc->pkt_cnt++;
3091         if ((ret = ff_interleave_add_packet(s, pkt, mxf_compare_timestamps)) < 0)
3092             return ret;
3093     }
3094     return mxf_interleave_get_packet(s, out, NULL, flush);
3095 }
3096
3097 #define MXF_COMMON_OPTIONS \
3098     { "signal_standard", "Force/set Signal Standard",\
3099       offsetof(MXFContext, signal_standard), AV_OPT_TYPE_INT, {.i64 = -1}, -1, 7, AV_OPT_FLAG_ENCODING_PARAM, "signal_standard"},\
3100     { "bt601", "ITU-R BT.601 and BT.656, also SMPTE 125M (525 and 625 line interlaced)",\
3101       0, AV_OPT_TYPE_CONST, {.i64 = 1}, -1, 7, AV_OPT_FLAG_ENCODING_PARAM, "signal_standard"},\
3102     { "bt1358", "ITU-R BT.1358 and ITU-R BT.799-3, also SMPTE 293M (525 and 625 line progressive)",\
3103       0, AV_OPT_TYPE_CONST, {.i64 = 2}, -1, 7, AV_OPT_FLAG_ENCODING_PARAM, "signal_standard"},\
3104     { "smpte347m", "SMPTE 347M (540 Mbps mappings)",\
3105       0, AV_OPT_TYPE_CONST, {.i64 = 3}, -1, 7, AV_OPT_FLAG_ENCODING_PARAM, "signal_standard"},\
3106     { "smpte274m", "SMPTE 274M (1125 line)",\
3107       0, AV_OPT_TYPE_CONST, {.i64 = 4}, -1, 7, AV_OPT_FLAG_ENCODING_PARAM, "signal_standard"},\
3108     { "smpte296m", "SMPTE 296M (750 line progressive)",\
3109       0, AV_OPT_TYPE_CONST, {.i64 = 5}, -1, 7, AV_OPT_FLAG_ENCODING_PARAM, "signal_standard"},\
3110     { "smpte349m", "SMPTE 349M (1485 Mbps mappings)",\
3111       0, AV_OPT_TYPE_CONST, {.i64 = 6}, -1, 7, AV_OPT_FLAG_ENCODING_PARAM, "signal_standard"},\
3112     { "smpte428", "SMPTE 428-1 DCDM",\
3113       0, AV_OPT_TYPE_CONST, {.i64 = 7}, -1, 7, AV_OPT_FLAG_ENCODING_PARAM, "signal_standard"},
3114
3115
3116
3117 static const AVOption mxf_options[] = {
3118     MXF_COMMON_OPTIONS
3119     { "store_user_comments", "",
3120       offsetof(MXFContext, store_user_comments), AV_OPT_TYPE_BOOL, {.i64 = 1}, 0, 1, AV_OPT_FLAG_ENCODING_PARAM},
3121     { NULL },
3122 };
3123
3124 static const AVClass mxf_muxer_class = {
3125     .class_name     = "MXF muxer",
3126     .item_name      = av_default_item_name,
3127     .option         = mxf_options,
3128     .version        = LIBAVUTIL_VERSION_INT,
3129 };
3130
3131 static const AVOption d10_options[] = {
3132     { "d10_channelcount", "Force/set channelcount in generic sound essence descriptor",
3133       offsetof(MXFContext, channel_count), AV_OPT_TYPE_INT, {.i64 = -1}, -1, 8, AV_OPT_FLAG_ENCODING_PARAM},
3134     MXF_COMMON_OPTIONS
3135     { "store_user_comments", "",
3136       offsetof(MXFContext, store_user_comments), AV_OPT_TYPE_BOOL, {.i64 = 0}, 0, 1, AV_OPT_FLAG_ENCODING_PARAM},
3137     { NULL },
3138 };
3139
3140 static const AVClass mxf_d10_muxer_class = {
3141     .class_name     = "MXF-D10 muxer",
3142     .item_name      = av_default_item_name,
3143     .option         = d10_options,
3144     .version        = LIBAVUTIL_VERSION_INT,
3145 };
3146
3147 static const AVOption opatom_options[] = {
3148     { "mxf_audio_edit_rate", "Audio edit rate for timecode",
3149         offsetof(MXFContext, audio_edit_rate), AV_OPT_TYPE_RATIONAL, {.dbl=25}, 0, INT_MAX, AV_OPT_FLAG_ENCODING_PARAM },
3150     MXF_COMMON_OPTIONS
3151     { "store_user_comments", "",
3152       offsetof(MXFContext, store_user_comments), AV_OPT_TYPE_BOOL, {.i64 = 1}, 0, 1, AV_OPT_FLAG_ENCODING_PARAM},
3153     { NULL },
3154 };
3155
3156 static const AVClass mxf_opatom_muxer_class = {
3157     .class_name     = "MXF-OPAtom muxer",
3158     .item_name      = av_default_item_name,
3159     .option         = opatom_options,
3160     .version        = LIBAVUTIL_VERSION_INT,
3161 };
3162
3163 AVOutputFormat ff_mxf_muxer = {
3164     .name              = "mxf",
3165     .long_name         = NULL_IF_CONFIG_SMALL("MXF (Material eXchange Format)"),
3166     .mime_type         = "application/mxf",
3167     .extensions        = "mxf",
3168     .priv_data_size    = sizeof(MXFContext),
3169     .audio_codec       = AV_CODEC_ID_PCM_S16LE,
3170     .video_codec       = AV_CODEC_ID_MPEG2VIDEO,
3171     .write_header      = mxf_write_header,
3172     .write_packet      = mxf_write_packet,
3173     .write_trailer     = mxf_write_footer,
3174     .deinit            = mxf_deinit,
3175     .flags             = AVFMT_NOTIMESTAMPS,
3176     .interleave_packet = mxf_interleave,
3177     .priv_class        = &mxf_muxer_class,
3178 };
3179
3180 AVOutputFormat ff_mxf_d10_muxer = {
3181     .name              = "mxf_d10",
3182     .long_name         = NULL_IF_CONFIG_SMALL("MXF (Material eXchange Format) D-10 Mapping"),
3183     .mime_type         = "application/mxf",
3184     .priv_data_size    = sizeof(MXFContext),
3185     .audio_codec       = AV_CODEC_ID_PCM_S16LE,
3186     .video_codec       = AV_CODEC_ID_MPEG2VIDEO,
3187     .write_header      = mxf_write_header,
3188     .write_packet      = mxf_write_packet,
3189     .write_trailer     = mxf_write_footer,
3190     .deinit            = mxf_deinit,
3191     .flags             = AVFMT_NOTIMESTAMPS,
3192     .interleave_packet = mxf_interleave,
3193     .priv_class        = &mxf_d10_muxer_class,
3194 };
3195
3196 AVOutputFormat ff_mxf_opatom_muxer = {
3197     .name              = "mxf_opatom",
3198     .long_name         = NULL_IF_CONFIG_SMALL("MXF (Material eXchange Format) Operational Pattern Atom"),
3199     .mime_type         = "application/mxf",
3200     .extensions        = "mxf",
3201     .priv_data_size    = sizeof(MXFContext),
3202     .audio_codec       = AV_CODEC_ID_PCM_S16LE,
3203     .video_codec       = AV_CODEC_ID_DNXHD,
3204     .write_header      = mxf_write_header,
3205     .write_packet      = mxf_write_packet,
3206     .write_trailer     = mxf_write_footer,
3207     .deinit            = mxf_deinit,
3208     .flags             = AVFMT_NOTIMESTAMPS,
3209     .interleave_packet = mxf_interleave,
3210     .priv_class        = &mxf_opatom_muxer_class,
3211 };