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 and klv_fill_key version fixes sponsored by NOA GmbH
  25  */
  26
  27 /*
  28  * References
  29  * SMPTE 336M KLV Data Encoding Protocol Using Key-Length-Value
  30  * SMPTE 377M MXF File Format Specifications
  31  * SMPTE 379M MXF Generic Container
  32  * SMPTE 381M Mapping MPEG Streams into the MXF Generic Container
  33  * SMPTE 422M Mapping JPEG 2000 Codestreams into the MXF Generic Container
  34  * SMPTE RP210: SMPTE Metadata Dictionary
  35  * SMPTE RP224: Registry of SMPTE Universal Labels
  36  */
  37
  38 #include <inttypes.h>
  39 #include <math.h>
  40 #include <time.h>
  41
  42 #include "libavutil/opt.h"
  43 #include "libavutil/random_seed.h"
  44 #include "libavutil/timecode.h"
  45 #include "libavutil/avassert.h"
  46 #include "libavutil/pixdesc.h"
  47 #include "libavutil/time_internal.h"
  48 #include "libavcodec/bytestream.h"
  49 #include "libavcodec/dnxhddata.h"
  50 #include "libavcodec/h264.h"
  51 #include "libavcodec/internal.h"
  52 #include "audiointerleave.h"
  53 #include "avformat.h"
  54 #include "avio_internal.h"
  55 #include "internal.h"
  56 #include "mxf.h"
  57 #include "config.h"
  58
  59 extern AVOutputFormat ff_mxf_d10_muxer;
  60 extern AVOutputFormat ff_mxf_opatom_muxer;
  61
  62 #define EDIT_UNITS_PER_BODY 250
  63 #define KAG_SIZE 512
  64
  65 typedef struct MXFLocalTagPair {
  66     int local_tag;
  67     UID uid;
  68 } MXFLocalTagPair;
  69
  70 typedef struct MXFIndexEntry {
  71     uint8_t flags;
  72     uint64_t offset;
  73     unsigned slice_offset; ///< offset of audio slice
  74     uint16_t temporal_ref;
  75 } MXFIndexEntry;
  76
  77 typedef struct MXFStreamContext {
  78     AudioInterleaveContext aic;
  79     UID track_essence_element_key;
  80     int index;               ///< index in mxf_essence_container_uls table
  81     const UID *codec_ul;
  82     int order;               ///< interleaving order if dts are equal
  83     int interlaced;          ///< whether picture is interlaced
  84     int field_dominance;     ///< tff=1, bff=2
  85     int component_depth;
  86     int color_siting;
  87     int signal_standard;
  88     int h_chroma_sub_sample;
  89     int temporal_reordering;
  90     AVRational aspect_ratio; ///< display aspect ratio
  91     int closed_gop;          ///< gop is closed, used in mpeg-2 frame parsing
  92     int video_bit_rate;
  93 } MXFStreamContext;
  94
  95 typedef struct MXFContainerEssenceEntry {
  96     UID container_ul;
  97     UID element_ul;
  98     UID codec_ul;
  99     void (*write_desc)(AVFormatContext *, AVStream *);
 100 } MXFContainerEssenceEntry;
 101
 102 static const struct {
 103     enum AVCodecID id;
 104     int index;
 105 } mxf_essence_mappings[] = {
 106     { AV_CODEC_ID_MPEG2VIDEO, 0 },
 107     { AV_CODEC_ID_PCM_S24LE,  1 },
 108     { AV_CODEC_ID_PCM_S16LE,  1 },
 109     { AV_CODEC_ID_DVVIDEO,   15 },
 110     { AV_CODEC_ID_DNXHD,     24 },
 111     { AV_CODEC_ID_JPEG2000,  34 },
 112     { AV_CODEC_ID_H264,      35 },
 113     { AV_CODEC_ID_NONE }
 114 };
 115
 116 static void mxf_write_wav_desc(AVFormatContext *s, AVStream *st);
 117 static void mxf_write_aes3_desc(AVFormatContext *s, AVStream *st);
 118 static void mxf_write_mpegvideo_desc(AVFormatContext *s, AVStream *st);
 119 static void mxf_write_cdci_desc(AVFormatContext *s, AVStream *st);
 120 static void mxf_write_generic_sound_desc(AVFormatContext *s, AVStream *st);
 121
 122 static const MXFContainerEssenceEntry mxf_essence_container_uls[] = {
 123     { { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x02,0x0D,0x01,0x03,0x01,0x02,0x04,0x60,0x01 },
 124       { 0x06,0x0E,0x2B,0x34,0x01,0x02,0x01,0x01,0x0D,0x01,0x03,0x01,0x15,0x01,0x05,0x00 },
 125       { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x03,0x04,0x01,0x02,0x02,0x01,0x00,0x00,0x00 },
 126       mxf_write_mpegvideo_desc },
 127     { { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x0D,0x01,0x03,0x01,0x02,0x06,0x03,0x00 },
 128       { 0x06,0x0E,0x2B,0x34,0x01,0x02,0x01,0x01,0x0D,0x01,0x03,0x01,0x16,0x01,0x03,0x00 },
 129       { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x04,0x02,0x02,0x01,0x00,0x00,0x00,0x00 },
 130       mxf_write_aes3_desc },
 131     { { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x0D,0x01,0x03,0x01,0x02,0x06,0x01,0x00 },
 132       { 0x06,0x0E,0x2B,0x34,0x01,0x02,0x01,0x01,0x0D,0x01,0x03,0x01,0x16,0x01,0x01,0x00 },
 133       { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x04,0x02,0x02,0x01,0x00,0x00,0x00,0x00 },
 134       mxf_write_wav_desc },
 135     // D-10 625/50 PAL 50mb/s
 136     { { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x0D,0x01,0x03,0x01,0x02,0x01,0x01,0x01 },
 137       { 0x06,0x0E,0x2B,0x34,0x01,0x02,0x01,0x01,0x0D,0x01,0x03,0x01,0x05,0x01,0x01,0x00 },
 138       { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x04,0x01,0x02,0x02,0x01,0x02,0x01,0x01 },
 139       mxf_write_cdci_desc },
 140     { { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x0D,0x01,0x03,0x01,0x02,0x01,0x01,0x01 },
 141       { 0x06,0x0E,0x2B,0x34,0x01,0x02,0x01,0x01,0x0D,0x01,0x03,0x01,0x06,0x01,0x10,0x00 },
 142       { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x04,0x02,0x02,0x01,0x00,0x00,0x00,0x00 },
 143       mxf_write_generic_sound_desc },
 144     // D-10 525/60 NTSC 50mb/s
 145     { { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x0D,0x01,0x03,0x01,0x02,0x01,0x02,0x01 },
 146       { 0x06,0x0E,0x2B,0x34,0x01,0x02,0x01,0x01,0x0D,0x01,0x03,0x01,0x05,0x01,0x01,0x00 },
 147       { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x04,0x01,0x02,0x02,0x01,0x02,0x01,0x02 },
 148       mxf_write_cdci_desc },
 149     { { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x0D,0x01,0x03,0x01,0x02,0x01,0x02,0x01 },
 150       { 0x06,0x0E,0x2B,0x34,0x01,0x02,0x01,0x01,0x0D,0x01,0x03,0x01,0x06,0x01,0x10,0x00 },
 151       { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x04,0x02,0x02,0x01,0x00,0x00,0x00,0x00 },
 152       mxf_write_generic_sound_desc },
 153     // D-10 625/50 PAL 40mb/s
 154     { { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x0D,0x01,0x03,0x01,0x02,0x01,0x03,0x01 },
 155       { 0x06,0x0E,0x2B,0x34,0x01,0x02,0x01,0x01,0x0D,0x01,0x03,0x01,0x05,0x01,0x01,0x00 },
 156       { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x04,0x01,0x02,0x02,0x01,0x02,0x01,0x03 },
 157       mxf_write_cdci_desc },
 158     { { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x0D,0x01,0x03,0x01,0x02,0x01,0x03,0x01 },
 159       { 0x06,0x0E,0x2B,0x34,0x01,0x02,0x01,0x01,0x0D,0x01,0x03,0x01,0x06,0x01,0x10,0x00 },
 160       { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x04,0x02,0x02,0x01,0x00,0x00,0x00,0x00 },
 161       mxf_write_generic_sound_desc },
 162     // D-10 525/60 NTSC 40mb/s
 163     { { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x0D,0x01,0x03,0x01,0x02,0x01,0x04,0x01 },
 164       { 0x06,0x0E,0x2B,0x34,0x01,0x02,0x01,0x01,0x0D,0x01,0x03,0x01,0x05,0x01,0x01,0x00 },
 165       { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x04,0x01,0x02,0x02,0x01,0x02,0x01,0x04 },
 166       mxf_write_cdci_desc },
 167     { { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x0D,0x01,0x03,0x01,0x02,0x01,0x04,0x01 },
 168       { 0x06,0x0E,0x2B,0x34,0x01,0x02,0x01,0x01,0x0D,0x01,0x03,0x01,0x06,0x01,0x10,0x00 },
 169       { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x04,0x02,0x02,0x01,0x00,0x00,0x00,0x00 },
 170       mxf_write_generic_sound_desc },
 171     // D-10 625/50 PAL 30mb/s
 172     { { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x0D,0x01,0x03,0x01,0x02,0x01,0x05,0x01 },
 173       { 0x06,0x0E,0x2B,0x34,0x01,0x02,0x01,0x01,0x0D,0x01,0x03,0x01,0x05,0x01,0x01,0x00 },
 174       { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x04,0x01,0x02,0x02,0x01,0x02,0x01,0x05 },
 175       mxf_write_cdci_desc },
 176     { { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x0D,0x01,0x03,0x01,0x02,0x01,0x05,0x01 },
 177       { 0x06,0x0E,0x2B,0x34,0x01,0x02,0x01,0x01,0x0D,0x01,0x03,0x01,0x06,0x01,0x10,0x00 },
 178       { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x04,0x02,0x02,0x01,0x00,0x00,0x00,0x00 },
 179       mxf_write_generic_sound_desc },
 180     // D-10 525/60 NTSC 30mb/s
 181     { { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x0D,0x01,0x03,0x01,0x02,0x01,0x06,0x01 },
 182       { 0x06,0x0E,0x2B,0x34,0x01,0x02,0x01,0x01,0x0D,0x01,0x03,0x01,0x05,0x01,0x01,0x00 },
 183       { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x04,0x01,0x02,0x02,0x01,0x02,0x01,0x06 },
 184       mxf_write_cdci_desc },
 185     { { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x0D,0x01,0x03,0x01,0x02,0x01,0x06,0x01 },
 186       { 0x06,0x0E,0x2B,0x34,0x01,0x02,0x01,0x01,0x0D,0x01,0x03,0x01,0x06,0x01,0x10,0x00 },
 187       { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x04,0x02,0x02,0x01,0x00,0x00,0x00,0x00 },
 188       mxf_write_generic_sound_desc },
 189     // DV Unknown
 190     { { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x0D,0x01,0x03,0x01,0x02,0x02,0x7F,0x01 },
 191       { 0x06,0x0E,0x2B,0x34,0x01,0x02,0x01,0x01,0x0D,0x01,0x03,0x01,0x18,0x01,0x01,0x00 },
 192       { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x04,0x01,0x02,0x02,0x02,0x00,0x00,0x00 },
 193       mxf_write_cdci_desc },
 194     // DV25 525/60
 195     { { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x0D,0x01,0x03,0x01,0x02,0x02,0x40,0x01 },
 196       { 0x06,0x0E,0x2B,0x34,0x01,0x02,0x01,0x01,0x0D,0x01,0x03,0x01,0x18,0x01,0x01,0x00 },
 197       { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x04,0x01,0x02,0x02,0x02,0x02,0x01,0x00 },
 198       mxf_write_cdci_desc },
 199     // DV25 625/50
 200     { { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x0D,0x01,0x03,0x01,0x02,0x02,0x41,0x01 },
 201       { 0x06,0x0E,0x2B,0x34,0x01,0x02,0x01,0x01,0x0D,0x01,0x03,0x01,0x18,0x01,0x01,0x00 },
 202       { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x04,0x01,0x02,0x02,0x02,0x02,0x02,0x00 },
 203       mxf_write_cdci_desc },
 204     // DV50 525/60
 205     { { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x0D,0x01,0x03,0x01,0x02,0x02,0x50,0x01 },
 206       { 0x06,0x0E,0x2B,0x34,0x01,0x02,0x01,0x01,0x0D,0x01,0x03,0x01,0x18,0x01,0x01,0x00 },
 207       { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x04,0x01,0x02,0x02,0x02,0x02,0x03,0x00 },
 208       mxf_write_cdci_desc },
 209     // DV50 625/50
 210     { { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x0D,0x01,0x03,0x01,0x02,0x02,0x51,0x01 },
 211       { 0x06,0x0E,0x2B,0x34,0x01,0x02,0x01,0x01,0x0D,0x01,0x03,0x01,0x18,0x01,0x01,0x00 },
 212       { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x04,0x01,0x02,0x02,0x02,0x02,0x04,0x00 },
 213       mxf_write_cdci_desc },
 214     // DV100 1080/60
 215     { { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x0D,0x01,0x03,0x01,0x02,0x02,0x60,0x01 },
 216       { 0x06,0x0E,0x2B,0x34,0x01,0x02,0x01,0x01,0x0D,0x01,0x03,0x01,0x18,0x01,0x01,0x00 },
 217       { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x04,0x01,0x02,0x02,0x02,0x02,0x05,0x00 },
 218       mxf_write_cdci_desc },
 219     // DV100 1080/50
 220     { { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x0D,0x01,0x03,0x01,0x02,0x02,0x61,0x01 },
 221       { 0x06,0x0E,0x2B,0x34,0x01,0x02,0x01,0x01,0x0D,0x01,0x03,0x01,0x18,0x01,0x01,0x00 },
 222       { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x04,0x01,0x02,0x02,0x02,0x02,0x06,0x00 },
 223       mxf_write_cdci_desc },
 224     // DV100 720/60
 225     { { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x0D,0x01,0x03,0x01,0x02,0x02,0x62,0x01 },
 226       { 0x06,0x0E,0x2B,0x34,0x01,0x02,0x01,0x01,0x0D,0x01,0x03,0x01,0x18,0x01,0x01,0x00 },
 227       { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x04,0x01,0x02,0x02,0x02,0x02,0x07,0x00 },
 228       mxf_write_cdci_desc },
 229     // DV100 720/50
 230     { { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x0D,0x01,0x03,0x01,0x02,0x02,0x63,0x01 },
 231       { 0x06,0x0E,0x2B,0x34,0x01,0x02,0x01,0x01,0x0D,0x01,0x03,0x01,0x18,0x01,0x01,0x00 },
 232       { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x04,0x01,0x02,0x02,0x02,0x02,0x08,0x00 },
 233       mxf_write_cdci_desc },
 234     // DNxHD 1080p 10bit high
 235     { { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x0D,0x01,0x03,0x01,0x02,0x11,0x01,0x00 },
 236       { 0x06,0x0E,0x2B,0x34,0x01,0x02,0x01,0x01,0x0D,0x01,0x03,0x01,0x15,0x01,0x05,0x00 },
 237       { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x0A,0x04,0x01,0x02,0x02,0x71,0x01,0x00,0x00 },
 238       mxf_write_cdci_desc },
 239     // DNxHD 1080p 8bit medium
 240     { { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x0D,0x01,0x03,0x01,0x02,0x11,0x01,0x00 },
 241       { 0x06,0x0E,0x2B,0x34,0x01,0x02,0x01,0x01,0x0D,0x01,0x03,0x01,0x15,0x01,0x05,0x00 },
 242       { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x0A,0x04,0x01,0x02,0x02,0x71,0x03,0x00,0x00 },
 243       mxf_write_cdci_desc },
 244     // DNxHD 1080p 8bit high
 245     { { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x0D,0x01,0x03,0x01,0x02,0x11,0x01,0x00 },
 246       { 0x06,0x0E,0x2B,0x34,0x01,0x02,0x01,0x01,0x0D,0x01,0x03,0x01,0x15,0x01,0x05,0x00 },
 247       { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x0A,0x04,0x01,0x02,0x02,0x71,0x04,0x00,0x00 },
 248       mxf_write_cdci_desc },
 249     // DNxHD 1080i 10bit high
 250     { { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x0D,0x01,0x03,0x01,0x02,0x11,0x01,0x00 },
 251       { 0x06,0x0E,0x2B,0x34,0x01,0x02,0x01,0x01,0x0D,0x01,0x03,0x01,0x15,0x01,0x05,0x00 },
 252       { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x0A,0x04,0x01,0x02,0x02,0x71,0x07,0x00,0x00 },
 253       mxf_write_cdci_desc },
 254     // DNxHD 1080i 8bit medium
 255     { { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x0D,0x01,0x03,0x01,0x02,0x11,0x01,0x00 },
 256       { 0x06,0x0E,0x2B,0x34,0x01,0x02,0x01,0x01,0x0D,0x01,0x03,0x01,0x15,0x01,0x05,0x00 },
 257       { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x0A,0x04,0x01,0x02,0x02,0x71,0x08,0x00,0x00 },
 258       mxf_write_cdci_desc },
 259     // DNxHD 1080i 8bit high
 260     { { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x0D,0x01,0x03,0x01,0x02,0x11,0x01,0x00 },
 261       { 0x06,0x0E,0x2B,0x34,0x01,0x02,0x01,0x01,0x0D,0x01,0x03,0x01,0x15,0x01,0x05,0x00 },
 262       { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x0A,0x04,0x01,0x02,0x02,0x71,0x09,0x00,0x00 },
 263       mxf_write_cdci_desc },
 264     // DNxHD 720p 10bit
 265     { { 0x06,0x0e,0x2b,0x34,0x04,0x01,0x01,0x01,0x0d,0x01,0x03,0x01,0x02,0x11,0x01,0x00 },
 266       { 0x06,0x0e,0x2b,0x34,0x01,0x02,0x01,0x01,0x0d,0x01,0x03,0x01,0x15,0x01,0x05,0x00 },
 267       { 0x06,0x0e,0x2b,0x34,0x04,0x01,0x01,0x0A,0x04,0x01,0x02,0x02,0x71,0x10,0x00,0x00 },
 268       mxf_write_cdci_desc },
 269     // DNxHD 720p 8bit high
 270     { { 0x06,0x0e,0x2b,0x34,0x04,0x01,0x01,0x01,0x0d,0x01,0x03,0x01,0x02,0x11,0x01,0x00 },
 271       { 0x06,0x0e,0x2b,0x34,0x01,0x02,0x01,0x01,0x0d,0x01,0x03,0x01,0x15,0x01,0x05,0x00 },
 272       { 0x06,0x0e,0x2b,0x34,0x04,0x01,0x01,0x0A,0x04,0x01,0x02,0x02,0x71,0x11,0x00,0x00 },
 273       mxf_write_cdci_desc },
 274     // DNxHD 720p 8bit medium
 275     { { 0x06,0x0e,0x2b,0x34,0x04,0x01,0x01,0x01,0x0d,0x01,0x03,0x01,0x02,0x11,0x01,0x00 },
 276       { 0x06,0x0e,0x2b,0x34,0x01,0x02,0x01,0x01,0x0d,0x01,0x03,0x01,0x15,0x01,0x05,0x00 },
 277       { 0x06,0x0e,0x2b,0x34,0x04,0x01,0x01,0x0A,0x04,0x01,0x02,0x02,0x71,0x12,0x00,0x00 },
 278       mxf_write_cdci_desc },
 279     // DNxHD 720p 8bit low
 280     { { 0x06,0x0e,0x2b,0x34,0x04,0x01,0x01,0x01,0x0d,0x01,0x03,0x01,0x02,0x11,0x01,0x00 },
 281       { 0x06,0x0e,0x2b,0x34,0x01,0x02,0x01,0x01,0x0d,0x01,0x03,0x01,0x15,0x01,0x05,0x00 },
 282       { 0x06,0x0e,0x2b,0x34,0x04,0x01,0x01,0x0A,0x04,0x01,0x02,0x02,0x71,0x13,0x00,0x00 },
 283       mxf_write_cdci_desc },
 284     // JPEG2000
 285     { { 0x06,0x0e,0x2b,0x34,0x04,0x01,0x01,0x07,0x0d,0x01,0x03,0x01,0x02,0x0c,0x01,0x00 },
 286       { 0x06,0x0e,0x2b,0x34,0x01,0x02,0x01,0x01,0x0d,0x01,0x03,0x01,0x15,0x01,0x08,0x00 },
 287       { 0x06,0x0e,0x2b,0x34,0x04,0x01,0x01,0x07,0x04,0x01,0x02,0x02,0x03,0x01,0x01,0x00 },
 288       mxf_write_cdci_desc },
 289     // H.264
 290     { { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x0a,0x0D,0x01,0x03,0x01,0x02,0x10,0x60,0x01 },
 291       { 0x06,0x0E,0x2B,0x34,0x01,0x02,0x01,0x01,0x0D,0x01,0x03,0x01,0x15,0x01,0x05,0x00 },
 292       { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x0a,0x04,0x01,0x02,0x02,0x01,0x00,0x00,0x00 },
 293       mxf_write_mpegvideo_desc },
 294     { { 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00 },
 295       { 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00 },
 296       { 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00 },
 297       NULL },
 298 };
 299
 300 typedef struct MXFContext {
 301     AVClass *av_class;
 302     int64_t footer_partition_offset;
 303     int essence_container_count;
 304     AVRational time_base;
 305     int header_written;
 306     MXFIndexEntry *index_entries;
 307     unsigned edit_units_count;
 308     uint64_t timestamp;   ///< timestamp, as year(16),month(8),day(8),hour(8),minutes(8),msec/4(8)
 309     uint8_t slice_count;  ///< index slice count minus 1 (1 if no audio, 0 otherwise)
 310     int last_indexed_edit_unit;
 311     uint64_t *body_partition_offset;
 312     unsigned body_partitions_count;
 313     int last_key_index;  ///< index of last key frame
 314     uint64_t duration;
 315     AVTimecode tc;       ///< timecode context
 316     AVStream *timecode_track;
 317     int timecode_base;       ///< rounded time code base (25 or 30)
 318     int edit_unit_byte_count; ///< fixed edit unit byte count
 319     uint64_t body_offset;
 320     uint32_t instance_number;
 321     uint8_t umid[16];        ///< unique material identifier
 322     int channel_count;
 323     int signal_standard;
 324     uint32_t tagged_value_count;
 325     AVRational audio_edit_rate;
 326 } MXFContext;
 327
 328 static const uint8_t uuid_base[]            = { 0xAD,0xAB,0x44,0x24,0x2f,0x25,0x4d,0xc7,0x92,0xff,0x29,0xbd };
 329 static const uint8_t umid_ul[]              = { 0x06,0x0A,0x2B,0x34,0x01,0x01,0x01,0x05,0x01,0x01,0x0D,0x00,0x13 };
 330
 331 /**
 332  * complete key for operation pattern, partitions, and primer pack
 333  */
 334 static const uint8_t op1a_ul[]                     = { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x0D,0x01,0x02,0x01,0x01,0x01,0x09,0x00 };
 335 static const uint8_t opatom_ul[]                   = { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x02,0x0D,0x01,0x02,0x01,0x10,0x03,0x00,0x00 };
 336 static const uint8_t footer_partition_key[]        = { 0x06,0x0E,0x2B,0x34,0x02,0x05,0x01,0x01,0x0D,0x01,0x02,0x01,0x01,0x04,0x04,0x00 }; // ClosedComplete
 337 static const uint8_t primer_pack_key[]             = { 0x06,0x0E,0x2B,0x34,0x02,0x05,0x01,0x01,0x0D,0x01,0x02,0x01,0x01,0x05,0x01,0x00 };
 338 static const uint8_t index_table_segment_key[]     = { 0x06,0x0E,0x2B,0x34,0x02,0x53,0x01,0x01,0x0d,0x01,0x02,0x01,0x01,0x10,0x01,0x00 };
 339 static const uint8_t random_index_pack_key[]       = { 0x06,0x0E,0x2B,0x34,0x02,0x05,0x01,0x01,0x0D,0x01,0x02,0x01,0x01,0x11,0x01,0x00 };
 340 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
 341 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
 342 static const uint8_t klv_fill_key[]                = { 0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x03,0x01,0x02,0x10,0x01,0x00,0x00,0x00 };
 343 static const uint8_t body_partition_key[]          = { 0x06,0x0E,0x2B,0x34,0x02,0x05,0x01,0x01,0x0D,0x01,0x02,0x01,0x01,0x03,0x04,0x00 }; // ClosedComplete
 344
 345 /**
 346  * partial key for header metadata
 347  */
 348 static const uint8_t header_metadata_key[]  = { 0x06,0x0E,0x2B,0x34,0x02,0x53,0x01,0x01,0x0D,0x01,0x01,0x01,0x01 };
 349 static const uint8_t multiple_desc_ul[]     = { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x03,0x0D,0x01,0x03,0x01,0x02,0x7F,0x01,0x00 };
 350
 351 /**
 352  * SMPTE RP210 http://www.smpte-ra.org/mdd/index.html
 353  */
 354 static const MXFLocalTagPair mxf_local_tag_batch[] = {
 355     // preface set
 356     { 0x3C0A, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x01,0x01,0x01,0x15,0x02,0x00,0x00,0x00,0x00}}, /* Instance UID */
 357     { 0x3B02, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x07,0x02,0x01,0x10,0x02,0x04,0x00,0x00}}, /* Last Modified Date */
 358     { 0x3B05, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x03,0x01,0x02,0x01,0x05,0x00,0x00,0x00}}, /* Version */
 359     { 0x3B06, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x06,0x01,0x01,0x04,0x06,0x04,0x00,0x00}}, /* Identifications reference */
 360     { 0x3B03, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x06,0x01,0x01,0x04,0x02,0x01,0x00,0x00}}, /* Content Storage reference */
 361     { 0x3B09, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x05,0x01,0x02,0x02,0x03,0x00,0x00,0x00,0x00}}, /* Operational Pattern UL */
 362     { 0x3B0A, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x05,0x01,0x02,0x02,0x10,0x02,0x01,0x00,0x00}}, /* Essence Containers UL batch */
 363     { 0x3B0B, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x05,0x01,0x02,0x02,0x10,0x02,0x02,0x00,0x00}}, /* DM Schemes UL batch */
 364     // Identification
 365     { 0x3C09, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x05,0x20,0x07,0x01,0x01,0x00,0x00,0x00}}, /* This Generation UID */
 366     { 0x3C01, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x05,0x20,0x07,0x01,0x02,0x01,0x00,0x00}}, /* Company Name */
 367     { 0x3C02, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x05,0x20,0x07,0x01,0x03,0x01,0x00,0x00}}, /* Product Name */
 368     { 0x3C04, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x05,0x20,0x07,0x01,0x05,0x01,0x00,0x00}}, /* Version String */
 369     { 0x3C05, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x05,0x20,0x07,0x01,0x07,0x00,0x00,0x00}}, /* Product ID */
 370     { 0x3C06, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x07,0x02,0x01,0x10,0x02,0x03,0x00,0x00}}, /* Modification Date */
 371     // Content Storage
 372     { 0x1901, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x06,0x01,0x01,0x04,0x05,0x01,0x00,0x00}}, /* Package strong reference batch */
 373     { 0x1902, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x06,0x01,0x01,0x04,0x05,0x02,0x00,0x00}}, /* Package strong reference batch */
 374     // Essence Container Data
 375     { 0x2701, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x06,0x01,0x01,0x06,0x01,0x00,0x00,0x00}}, /* Linked Package UID */
 376     { 0x3F07, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x04,0x01,0x03,0x04,0x04,0x00,0x00,0x00,0x00}}, /* BodySID */
 377     // Package
 378     { 0x4401, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x01,0x01,0x01,0x15,0x10,0x00,0x00,0x00,0x00}}, /* Package UID */
 379     { 0x4405, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x07,0x02,0x01,0x10,0x01,0x03,0x00,0x00}}, /* Package Creation Date */
 380     { 0x4404, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x07,0x02,0x01,0x10,0x02,0x05,0x00,0x00}}, /* Package Modified Date */
 381     { 0x4402, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x01,0x01,0x03,0x03,0x02,0x01,0x00,0x00,0x00}}, /* Package Name */
 382     { 0x4403, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x06,0x01,0x01,0x04,0x06,0x05,0x00,0x00}}, /* Tracks Strong reference array */
 383     { 0x4406, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x03,0x02,0x01,0x02,0x0C,0x00,0x00,0x00}}, /* User Comments */
 384     { 0x4701, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x06,0x01,0x01,0x04,0x02,0x03,0x00,0x00}}, /* Descriptor */
 385     // Track
 386     { 0x4801, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x01,0x07,0x01,0x01,0x00,0x00,0x00,0x00}}, /* Track ID */
 387     { 0x4804, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x01,0x04,0x01,0x03,0x00,0x00,0x00,0x00}}, /* Track Number */
 388     { 0x4B01, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x05,0x30,0x04,0x05,0x00,0x00,0x00,0x00}}, /* Edit Rate */
 389     { 0x4B02, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x07,0x02,0x01,0x03,0x01,0x03,0x00,0x00}}, /* Origin */
 390     { 0x4803, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x06,0x01,0x01,0x04,0x02,0x04,0x00,0x00}}, /* Sequence reference */
 391     // Sequence
 392     { 0x0201, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x04,0x07,0x01,0x00,0x00,0x00,0x00,0x00}}, /* Data Definition UL */
 393     { 0x0202, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x07,0x02,0x02,0x01,0x01,0x03,0x00,0x00}}, /* Duration */
 394     { 0x1001, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x06,0x01,0x01,0x04,0x06,0x09,0x00,0x00}}, /* Structural Components reference array */
 395     // Source Clip
 396     { 0x1201, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x07,0x02,0x01,0x03,0x01,0x04,0x00,0x00}}, /* Start position */
 397     { 0x1101, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x06,0x01,0x01,0x03,0x01,0x00,0x00,0x00}}, /* SourcePackageID */
 398     { 0x1102, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x06,0x01,0x01,0x03,0x02,0x00,0x00,0x00}}, /* SourceTrackID */
 399     // Timecode Component
 400     { 0x1501, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x07,0x02,0x01,0x03,0x01,0x05,0x00,0x00}}, /* Start Time Code */
 401     { 0x1502, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x04,0x04,0x01,0x01,0x02,0x06,0x00,0x00}}, /* Rounded Time Code Base */
 402     { 0x1503, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x01,0x04,0x04,0x01,0x01,0x05,0x00,0x00,0x00}}, /* Drop Frame */
 403     // Tagged Value
 404     { 0x5001, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x03,0x02,0x01,0x02,0x09,0x01,0x00,0x00}}, /* Name */
 405     { 0x5003, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x03,0x02,0x01,0x02,0x0A,0x01,0x00,0x00}}, /* Value */
 406     // File Descriptor
 407     { 0x3F01, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x04,0x06,0x01,0x01,0x04,0x06,0x0B,0x00,0x00}}, /* Sub Descriptors reference array */
 408     { 0x3006, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x05,0x06,0x01,0x01,0x03,0x05,0x00,0x00,0x00}}, /* Linked Track ID */
 409     { 0x3001, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x01,0x04,0x06,0x01,0x01,0x00,0x00,0x00,0x00}}, /* SampleRate */
 410     { 0x3002, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x01,0x04,0x06,0x01,0x02,0x00,0x00,0x00,0x00}}, /* ContainerDuration */
 411     { 0x3004, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x06,0x01,0x01,0x04,0x01,0x02,0x00,0x00}}, /* Essence Container */
 412     // Generic Picture Essence Descriptor
 413     { 0x320C, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x01,0x04,0x01,0x03,0x01,0x04,0x00,0x00,0x00}}, /* Frame Layout */
 414     { 0x320D, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x04,0x01,0x03,0x02,0x05,0x00,0x00,0x00}}, /* Video Line Map */
 415     { 0x3203, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x01,0x04,0x01,0x05,0x02,0x02,0x00,0x00,0x00}}, /* Stored Width */
 416     { 0x3202, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x01,0x04,0x01,0x05,0x02,0x01,0x00,0x00,0x00}}, /* Stored Height */
 417     { 0x3209, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x01,0x04,0x01,0x05,0x01,0x0C,0x00,0x00,0x00}}, /* Display Width */
 418     { 0x3208, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x01,0x04,0x01,0x05,0x01,0x0B,0x00,0x00,0x00}}, /* Display Height */
 419     { 0x320B, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x01,0x04,0x01,0x05,0x01,0x0E,0x00,0x00,0x00}}, /* Presentation Y offset */
 420     { 0x320E, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x01,0x04,0x01,0x01,0x01,0x01,0x00,0x00,0x00}}, /* Aspect Ratio */
 421     { 0x3201, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x04,0x01,0x06,0x01,0x00,0x00,0x00,0x00}}, /* Picture Essence Coding */
 422     { 0x3212, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x04,0x01,0x03,0x01,0x06,0x00,0x00,0x00}}, /* Field Dominance (Opt) */
 423     { 0x3215, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x05,0x04,0x05,0x01,0x13,0x00,0x00,0x00,0x00}}, /* Signal Standard */
 424     // CDCI Picture Essence Descriptor
 425     { 0x3301, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x04,0x01,0x05,0x03,0x0A,0x00,0x00,0x00}}, /* Component Depth */
 426     { 0x3302, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x01,0x04,0x01,0x05,0x01,0x05,0x00,0x00,0x00}}, /* Horizontal Subsampling */
 427     { 0x3303, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x01,0x04,0x01,0x05,0x01,0x06,0x00,0x00,0x00}}, /* Color Siting */
 428     // Generic Sound Essence Descriptor
 429     { 0x3D02, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x04,0x04,0x02,0x03,0x01,0x04,0x00,0x00,0x00}}, /* Locked/Unlocked */
 430     { 0x3D03, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x05,0x04,0x02,0x03,0x01,0x01,0x01,0x00,0x00}}, /* Audio sampling rate */
 431     { 0x3D07, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x05,0x04,0x02,0x01,0x01,0x04,0x00,0x00,0x00}}, /* ChannelCount */
 432     { 0x3D01, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x04,0x04,0x02,0x03,0x03,0x04,0x00,0x00,0x00}}, /* Quantization bits */
 433     { 0x3D06, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x04,0x02,0x04,0x02,0x00,0x00,0x00,0x00}}, /* Sound Essence Compression */
 434     // Index Table Segment
 435     { 0x3F0B, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x05,0x05,0x30,0x04,0x06,0x00,0x00,0x00,0x00}}, /* Index Edit Rate */
 436     { 0x3F0C, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x05,0x07,0x02,0x01,0x03,0x01,0x0A,0x00,0x00}}, /* Index Start Position */
 437     { 0x3F0D, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x05,0x07,0x02,0x02,0x01,0x01,0x02,0x00,0x00}}, /* Index Duration */
 438     { 0x3F05, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x04,0x04,0x06,0x02,0x01,0x00,0x00,0x00,0x00}}, /* Edit Unit Byte Count */
 439     { 0x3F06, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x04,0x01,0x03,0x04,0x05,0x00,0x00,0x00,0x00}}, /* IndexSID */
 440     { 0x3F08, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x04,0x04,0x04,0x04,0x01,0x01,0x00,0x00,0x00}}, /* Slice Count */
 441     { 0x3F09, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x05,0x04,0x04,0x04,0x01,0x06,0x00,0x00,0x00}}, /* Delta Entry Array */
 442     { 0x3F0A, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x05,0x04,0x04,0x04,0x02,0x05,0x00,0x00,0x00}}, /* Index Entry Array */
 443     // MPEG video Descriptor
 444     { 0x8000, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x05,0x04,0x01,0x06,0x02,0x01,0x0B,0x00,0x00}}, /* BitRate */
 445     { 0x8007, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x05,0x04,0x01,0x06,0x02,0x01,0x0A,0x00,0x00}}, /* ProfileAndLevel */
 446     // Wave Audio Essence Descriptor
 447     { 0x3D09, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x05,0x04,0x02,0x03,0x03,0x05,0x00,0x00,0x00}}, /* Average Bytes Per Second */
 448     { 0x3D0A, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x05,0x04,0x02,0x03,0x02,0x01,0x00,0x00,0x00}}, /* Block Align */
 449 };
 450
 451 static void mxf_write_uuid(AVIOContext *pb, enum MXFMetadataSetType type, int value)
 452 {
 453     avio_write(pb, uuid_base, 12);
 454     avio_wb16(pb, type);
 455     avio_wb16(pb, value);
 456 }
 457
 458 static void mxf_write_umid(AVFormatContext *s, int type)
 459 {
 460     MXFContext *mxf = s->priv_data;
 461     avio_write(s->pb, umid_ul, 13);
 462     avio_wb24(s->pb, mxf->instance_number);
 463     avio_write(s->pb, mxf->umid, 15);
 464     avio_w8(s->pb, type);
 465 }
 466
 467 static void mxf_write_refs_count(AVIOContext *pb, int ref_count)
 468 {
 469     avio_wb32(pb, ref_count);
 470     avio_wb32(pb, 16);
 471 }
 472
 473 static int klv_ber_length(uint64_t len)
 474 {
 475     if (len < 128)
 476         return 1;
 477     else
 478         return (av_log2(len) >> 3) + 2;
 479 }
 480
 481 static int klv_encode_ber_length(AVIOContext *pb, uint64_t len)
 482 {
 483     // Determine the best BER size
 484     int size;
 485     if (len < 128) {
 486         //short form
 487         avio_w8(pb, len);
 488         return 1;
 489     }
 490
 491     size = (av_log2(len) >> 3) + 1;
 492
 493     // long form
 494     avio_w8(pb, 0x80 + size);
 495     while(size) {
 496         size--;
 497         avio_w8(pb, len >> 8 * size & 0xff);
 498     }
 499     return 0;
 500 }
 501
 502 static void klv_encode_ber4_length(AVIOContext *pb, int len)
 503 {
 504     avio_w8(pb, 0x80 + 3);
 505     avio_wb24(pb, len);
 506 }
 507
 508 static void klv_encode_ber9_length(AVIOContext *pb, uint64_t len)
 509 {
 510     avio_w8(pb, 0x80 + 8);
 511     avio_wb64(pb, len);
 512 }
 513
 514 /*
 515  * Get essence container ul index
 516  */
 517 static int mxf_get_essence_container_ul_index(enum AVCodecID id)
 518 {
 519     int i;
 520     for (i = 0; mxf_essence_mappings[i].id; i++)
 521         if (mxf_essence_mappings[i].id == id)
 522             return mxf_essence_mappings[i].index;
 523     return -1;
 524 }
 525
 526 static void mxf_write_primer_pack(AVFormatContext *s)
 527 {
 528     AVIOContext *pb = s->pb;
 529     int local_tag_number, i = 0;
 530
 531     local_tag_number = FF_ARRAY_ELEMS(mxf_local_tag_batch);
 532
 533     avio_write(pb, primer_pack_key, 16);
 534     klv_encode_ber_length(pb, local_tag_number * 18 + 8);
 535
 536     avio_wb32(pb, local_tag_number); // local_tag num
 537     avio_wb32(pb, 18); // item size, always 18 according to the specs
 538
 539     for (i = 0; i < local_tag_number; i++) {
 540         avio_wb16(pb, mxf_local_tag_batch[i].local_tag);
 541         avio_write(pb, mxf_local_tag_batch[i].uid, 16);
 542     }
 543 }
 544
 545 static void mxf_write_local_tag(AVIOContext *pb, int size, int tag)
 546 {
 547     avio_wb16(pb, tag);
 548     avio_wb16(pb, size);
 549 }
 550
 551 static void mxf_write_metadata_key(AVIOContext *pb, unsigned int value)
 552 {
 553     avio_write(pb, header_metadata_key, 13);
 554     avio_wb24(pb, value);
 555 }
 556
 557 static void mxf_free(AVFormatContext *s)
 558 {
 559     int i;
 560
 561     for (i = 0; i < s->nb_streams; i++) {
 562         AVStream *st = s->streams[i];
 563         av_freep(&st->priv_data);
 564     }
 565 }
 566
 567 static const MXFCodecUL *mxf_get_data_definition_ul(int type)
 568 {
 569     const MXFCodecUL *uls = ff_mxf_data_definition_uls;
 570     while (uls->uid[0]) {
 571         if (type == uls->id)
 572             break;
 573         uls++;
 574     }
 575     return uls;
 576 }
 577
 578 //one EC -> one descriptor. N ECs -> MultipleDescriptor + N descriptors
 579 #define DESCRIPTOR_COUNT(essence_container_count) \
 580     (essence_container_count > 1 ? essence_container_count + 1 : essence_container_count)
 581
 582 static void mxf_write_essence_container_refs(AVFormatContext *s)
 583 {
 584     MXFContext *c = s->priv_data;
 585     AVIOContext *pb = s->pb;
 586     int i;
 587
 588     mxf_write_refs_count(pb, DESCRIPTOR_COUNT(c->essence_container_count));
 589     av_log(s,AV_LOG_DEBUG, "essence container count:%d\n", c->essence_container_count);
 590     for (i = 0; i < c->essence_container_count; i++) {
 591         MXFStreamContext *sc = s->streams[i]->priv_data;
 592         avio_write(pb, mxf_essence_container_uls[sc->index].container_ul, 16);
 593     }
 594
 595     if (c->essence_container_count > 1)
 596         avio_write(pb, multiple_desc_ul, 16);
 597 }
 598
 599 static void mxf_write_preface(AVFormatContext *s)
 600 {
 601     MXFContext *mxf = s->priv_data;
 602     AVIOContext *pb = s->pb;
 603
 604     mxf_write_metadata_key(pb, 0x012f00);
 605     PRINT_KEY(s, "preface key", pb->buf_ptr - 16);
 606     klv_encode_ber_length(pb, 130 + 16LL * DESCRIPTOR_COUNT(mxf->essence_container_count));
 607
 608     // write preface set uid
 609     mxf_write_local_tag(pb, 16, 0x3C0A);
 610     mxf_write_uuid(pb, Preface, 0);
 611     PRINT_KEY(s, "preface uid", pb->buf_ptr - 16);
 612
 613     // last modified date
 614     mxf_write_local_tag(pb, 8, 0x3B02);
 615     avio_wb64(pb, mxf->timestamp);
 616
 617     // write version
 618     mxf_write_local_tag(pb, 2, 0x3B05);
 619     avio_wb16(pb, 258); // v1.2
 620
 621     // write identification_refs
 622     mxf_write_local_tag(pb, 16 + 8, 0x3B06);
 623     mxf_write_refs_count(pb, 1);
 624     mxf_write_uuid(pb, Identification, 0);
 625
 626     // write content_storage_refs
 627     mxf_write_local_tag(pb, 16, 0x3B03);
 628     mxf_write_uuid(pb, ContentStorage, 0);
 629
 630     // operational pattern
 631     mxf_write_local_tag(pb, 16, 0x3B09);
 632     if (s->oformat == &ff_mxf_opatom_muxer)
 633         avio_write(pb, opatom_ul, 16);
 634     else
 635         avio_write(pb, op1a_ul, 16);
 636
 637     // write essence_container_refs
 638     mxf_write_local_tag(pb, 8 + 16LL * DESCRIPTOR_COUNT(mxf->essence_container_count), 0x3B0A);
 639     mxf_write_essence_container_refs(s);
 640
 641     // write dm_scheme_refs
 642     mxf_write_local_tag(pb, 8, 0x3B0B);
 643     avio_wb64(pb, 0);
 644 }
 645
 646 /*
 647  * Returns the length of the UTF-16 string, in 16-bit characters, that would result
 648  * from decoding the utf-8 string.
 649  */
 650 static uint64_t mxf_utf16len(const char *utf8_str)
 651 {
 652     const uint8_t *q = utf8_str;
 653     uint64_t size = 0;
 654     while (*q) {
 655         uint32_t ch;
 656         GET_UTF8(ch, *q++, goto invalid;)
 657         if (ch < 0x10000)
 658             size++;
 659         else
 660             size += 2;
 661         continue;
 662 invalid:
 663         av_log(NULL, AV_LOG_ERROR, "Invaid UTF8 sequence in mxf_utf16len\n\n");
 664     }
 665     size += 1;
 666     return size;
 667 }
 668
 669 /*
 670  * Returns the calculated length a local tag containing an utf-8 string as utf-16
 671  */
 672 static int mxf_utf16_local_tag_length(const char *utf8_str)
 673 {
 674     uint64_t size;
 675
 676     if (!utf8_str)
 677         return 0;
 678
 679     size = mxf_utf16len(utf8_str);
 680     if (size >= UINT16_MAX/2) {
 681         av_log(NULL, AV_LOG_ERROR, "utf16 local tag size %"PRIx64" invalid (too large), ignoring\n", size);
 682         return 0;
 683     }
 684
 685     return 4 + size * 2;
 686 }
 687
 688 /*
 689  * Write a local tag containing an utf-8 string as utf-16
 690  */
 691 static void mxf_write_local_tag_utf16(AVIOContext *pb, int tag, const char *value)
 692 {
 693     uint64_t size = mxf_utf16len(value);
 694
 695     if (size >= UINT16_MAX/2) {
 696         av_log(NULL, AV_LOG_ERROR, "utf16 local tag size %"PRIx64" invalid (too large), ignoring\n", size);
 697         return;
 698     }
 699
 700     mxf_write_local_tag(pb, size*2, tag);
 701     avio_put_str16be(pb, value);
 702 }
 703
 704 static void mxf_write_identification(AVFormatContext *s)
 705 {
 706     MXFContext *mxf = s->priv_data;
 707     AVIOContext *pb = s->pb;
 708     const char *company = "FFmpeg";
 709     const char *product = s->oformat != &ff_mxf_opatom_muxer ? "OP1a Muxer" : "OPAtom Muxer";
 710     const char *version;
 711     int length;
 712
 713     mxf_write_metadata_key(pb, 0x013000);
 714     PRINT_KEY(s, "identification key", pb->buf_ptr - 16);
 715
 716     version = s->flags & AVFMT_FLAG_BITEXACT ?
 717         "0.0.0" : AV_STRINGIFY(LIBAVFORMAT_VERSION);
 718     length = 72 + mxf_utf16_local_tag_length(company) +
 719                   mxf_utf16_local_tag_length(product) +
 720                   mxf_utf16_local_tag_length(version);
 721     klv_encode_ber_length(pb, length);
 722
 723     // write uid
 724     mxf_write_local_tag(pb, 16, 0x3C0A);
 725     mxf_write_uuid(pb, Identification, 0);
 726     PRINT_KEY(s, "identification uid", pb->buf_ptr - 16);
 727
 728     // write generation uid
 729     mxf_write_local_tag(pb, 16, 0x3C09);
 730     mxf_write_uuid(pb, Identification, 1);
 731     mxf_write_local_tag_utf16(pb, 0x3C01, company); // Company Name
 732     mxf_write_local_tag_utf16(pb, 0x3C02, product); // Product Name
 733     mxf_write_local_tag_utf16(pb, 0x3C04, version); // Version String
 734
 735     // write product uid
 736     mxf_write_local_tag(pb, 16, 0x3C05);
 737     mxf_write_uuid(pb, Identification, 2);
 738
 739     // modification date
 740     mxf_write_local_tag(pb, 8, 0x3C06);
 741     avio_wb64(pb, mxf->timestamp);
 742 }
 743
 744 static void mxf_write_content_storage(AVFormatContext *s)
 745 {
 746     AVIOContext *pb = s->pb;
 747
 748     mxf_write_metadata_key(pb, 0x011800);
 749     PRINT_KEY(s, "content storage key", pb->buf_ptr - 16);
 750     klv_encode_ber_length(pb, 92);
 751
 752     // write uid
 753     mxf_write_local_tag(pb, 16, 0x3C0A);
 754     mxf_write_uuid(pb, ContentStorage, 0);
 755     PRINT_KEY(s, "content storage uid", pb->buf_ptr - 16);
 756
 757     // write package reference
 758     mxf_write_local_tag(pb, 16 * 2 + 8, 0x1901);
 759     mxf_write_refs_count(pb, 2);
 760     mxf_write_uuid(pb, MaterialPackage, 0);
 761     mxf_write_uuid(pb, SourcePackage, 0);
 762
 763     // write essence container data
 764     mxf_write_local_tag(pb, 8 + 16, 0x1902);
 765     mxf_write_refs_count(pb, 1);
 766     mxf_write_uuid(pb, EssenceContainerData, 0);
 767 }
 768
 769 static void mxf_write_track(AVFormatContext *s, AVStream *st, enum MXFMetadataSetType type)
 770 {
 771     MXFContext *mxf = s->priv_data;
 772     AVIOContext *pb = s->pb;
 773     MXFStreamContext *sc = st->priv_data;
 774
 775     mxf_write_metadata_key(pb, 0x013b00);
 776     PRINT_KEY(s, "track key", pb->buf_ptr - 16);
 777     klv_encode_ber_length(pb, 80);
 778
 779     // write track uid
 780     mxf_write_local_tag(pb, 16, 0x3C0A);
 781     mxf_write_uuid(pb, type == MaterialPackage ? Track : Track + TypeBottom, st->index);
 782     PRINT_KEY(s, "track uid", pb->buf_ptr - 16);
 783
 784     // write track id
 785     mxf_write_local_tag(pb, 4, 0x4801);
 786     avio_wb32(pb, st->index+2);
 787
 788     // write track number
 789     mxf_write_local_tag(pb, 4, 0x4804);
 790     if (type == MaterialPackage)
 791         avio_wb32(pb, 0); // track number of material package is 0
 792     else
 793         avio_write(pb, sc->track_essence_element_key + 12, 4);
 794
 795     mxf_write_local_tag(pb, 8, 0x4B01);
 796
 797     if (st == mxf->timecode_track && s->oformat == &ff_mxf_opatom_muxer){
 798         avio_wb32(pb, mxf->tc.rate.num);
 799         avio_wb32(pb, mxf->tc.rate.den);
 800     } else {
 801         avio_wb32(pb, mxf->time_base.den);
 802         avio_wb32(pb, mxf->time_base.num);
 803     }
 804
 805     // write origin
 806     mxf_write_local_tag(pb, 8, 0x4B02);
 807     avio_wb64(pb, 0);
 808
 809     // write sequence refs
 810     mxf_write_local_tag(pb, 16, 0x4803);
 811     mxf_write_uuid(pb, type == MaterialPackage ? Sequence: Sequence + TypeBottom, st->index);
 812 }
 813
 814 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 };
 815
 816 static void mxf_write_common_fields(AVFormatContext *s, AVStream *st)
 817 {
 818     MXFContext *mxf = s->priv_data;
 819     AVIOContext *pb = s->pb;
 820
 821     // find data define uls
 822     mxf_write_local_tag(pb, 16, 0x0201);
 823     if (st == mxf->timecode_track)
 824         avio_write(pb, smpte_12m_timecode_track_data_ul, 16);
 825     else {
 826         const MXFCodecUL *data_def_ul = mxf_get_data_definition_ul(st->codec->codec_type);
 827         avio_write(pb, data_def_ul->uid, 16);
 828     }
 829
 830     // write duration
 831     mxf_write_local_tag(pb, 8, 0x0202);
 832
 833     if (st != mxf->timecode_track && s->oformat == &ff_mxf_opatom_muxer && st->codec->codec_type == AVMEDIA_TYPE_AUDIO){
 834         avio_wb64(pb, mxf->body_offset / mxf->edit_unit_byte_count);
 835     } else {
 836         avio_wb64(pb, mxf->duration);
 837     }
 838 }
 839
 840 static void mxf_write_sequence(AVFormatContext *s, AVStream *st, enum MXFMetadataSetType type)
 841 {
 842     MXFContext *mxf = s->priv_data;
 843     AVIOContext *pb = s->pb;
 844     enum MXFMetadataSetType component;
 845
 846     mxf_write_metadata_key(pb, 0x010f00);
 847     PRINT_KEY(s, "sequence key", pb->buf_ptr - 16);
 848     klv_encode_ber_length(pb, 80);
 849
 850     mxf_write_local_tag(pb, 16, 0x3C0A);
 851     mxf_write_uuid(pb, type == MaterialPackage ? Sequence: Sequence + TypeBottom, st->index);
 852
 853     PRINT_KEY(s, "sequence uid", pb->buf_ptr - 16);
 854     mxf_write_common_fields(s, st);
 855
 856     // write structural component
 857     mxf_write_local_tag(pb, 16 + 8, 0x1001);
 858     mxf_write_refs_count(pb, 1);
 859     if (st == mxf->timecode_track)
 860         component = TimecodeComponent;
 861     else
 862         component = SourceClip;
 863     if (type == SourcePackage)
 864         component += TypeBottom;
 865     mxf_write_uuid(pb, component, st->index);
 866 }
 867
 868 static void mxf_write_timecode_component(AVFormatContext *s, AVStream *st, enum MXFMetadataSetType type)
 869 {
 870     MXFContext *mxf = s->priv_data;
 871     AVIOContext *pb = s->pb;
 872
 873     mxf_write_metadata_key(pb, 0x011400);
 874     klv_encode_ber_length(pb, 75);
 875
 876     // UID
 877     mxf_write_local_tag(pb, 16, 0x3C0A);
 878     mxf_write_uuid(pb, type == MaterialPackage ? TimecodeComponent :
 879                    TimecodeComponent + TypeBottom, st->index);
 880
 881     mxf_write_common_fields(s, st);
 882
 883     // Start Time Code
 884     mxf_write_local_tag(pb, 8, 0x1501);
 885     avio_wb64(pb, mxf->tc.start);
 886
 887     // Rounded Time Code Base
 888     mxf_write_local_tag(pb, 2, 0x1502);
 889     avio_wb16(pb, mxf->timecode_base);
 890
 891     // Drop Frame
 892     mxf_write_local_tag(pb, 1, 0x1503);
 893     avio_w8(pb, !!(mxf->tc.flags & AV_TIMECODE_FLAG_DROPFRAME));
 894 }
 895
 896 static void mxf_write_structural_component(AVFormatContext *s, AVStream *st, enum MXFMetadataSetType type)
 897 {
 898     AVIOContext *pb = s->pb;
 899     int i;
 900
 901     mxf_write_metadata_key(pb, 0x011100);
 902     PRINT_KEY(s, "sturctural component key", pb->buf_ptr - 16);
 903     klv_encode_ber_length(pb, 108);
 904
 905     // write uid
 906     mxf_write_local_tag(pb, 16, 0x3C0A);
 907     mxf_write_uuid(pb, type == MaterialPackage ? SourceClip: SourceClip + TypeBottom, st->index);
 908
 909     PRINT_KEY(s, "structural component uid", pb->buf_ptr - 16);
 910     mxf_write_common_fields(s, st);
 911
 912     // write start_position
 913     mxf_write_local_tag(pb, 8, 0x1201);
 914     avio_wb64(pb, 0);
 915
 916     // write source package uid, end of the reference
 917     mxf_write_local_tag(pb, 32, 0x1101);
 918     if (type == SourcePackage) {
 919         for (i = 0; i < 4; i++)
 920             avio_wb64(pb, 0);
 921     } else
 922         mxf_write_umid(s, 1);
 923
 924     // write source track id
 925     mxf_write_local_tag(pb, 4, 0x1102);
 926     if (type == SourcePackage)
 927         avio_wb32(pb, 0);
 928     else
 929         avio_wb32(pb, st->index+2);
 930 }
 931
 932 static void mxf_write_multi_descriptor(AVFormatContext *s)
 933 {
 934     MXFContext *mxf = s->priv_data;
 935     AVIOContext *pb = s->pb;
 936     const uint8_t *ul;
 937     int i;
 938
 939     mxf_write_metadata_key(pb, 0x014400);
 940     PRINT_KEY(s, "multiple descriptor key", pb->buf_ptr - 16);
 941     klv_encode_ber_length(pb, 64 + 16LL * s->nb_streams);
 942
 943     mxf_write_local_tag(pb, 16, 0x3C0A);
 944     mxf_write_uuid(pb, MultipleDescriptor, 0);
 945     PRINT_KEY(s, "multi_desc uid", pb->buf_ptr - 16);
 946
 947     // write sample rate
 948     mxf_write_local_tag(pb, 8, 0x3001);
 949     avio_wb32(pb, mxf->time_base.den);
 950     avio_wb32(pb, mxf->time_base.num);
 951
 952     // write essence container ul
 953     mxf_write_local_tag(pb, 16, 0x3004);
 954     if (mxf->essence_container_count > 1)
 955         ul = multiple_desc_ul;
 956     else {
 957         MXFStreamContext *sc = s->streams[0]->priv_data;
 958         ul = mxf_essence_container_uls[sc->index].container_ul;
 959     }
 960     avio_write(pb, ul, 16);
 961
 962     // write sub descriptor refs
 963     mxf_write_local_tag(pb, s->nb_streams * 16 + 8, 0x3F01);
 964     mxf_write_refs_count(pb, s->nb_streams);
 965     for (i = 0; i < s->nb_streams; i++)
 966         mxf_write_uuid(pb, SubDescriptor, i);
 967 }
 968
 969 static void mxf_write_generic_desc(AVFormatContext *s, AVStream *st, const UID key, unsigned size)
 970 {
 971     MXFContext *mxf = s->priv_data;
 972     MXFStreamContext *sc = st->priv_data;
 973     AVIOContext *pb = s->pb;
 974
 975     avio_write(pb, key, 16);
 976     klv_encode_ber4_length(pb, size+20+8+12+20);
 977
 978     mxf_write_local_tag(pb, 16, 0x3C0A);
 979     mxf_write_uuid(pb, SubDescriptor, st->index);
 980
 981     mxf_write_local_tag(pb, 4, 0x3006);
 982     avio_wb32(pb, st->index+2);
 983
 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     mxf_write_local_tag(pb, 16, 0x3004);
 989     avio_write(pb, mxf_essence_container_uls[sc->index].container_ul, 16);
 990 }
 991
 992 static const UID mxf_mpegvideo_descriptor_key = { 0x06,0x0E,0x2B,0x34,0x02,0x53,0x01,0x01,0x0d,0x01,0x01,0x01,0x01,0x01,0x51,0x00 };
 993 static const UID mxf_wav_descriptor_key       = { 0x06,0x0E,0x2B,0x34,0x02,0x53,0x01,0x01,0x0d,0x01,0x01,0x01,0x01,0x01,0x48,0x00 };
 994 static const UID mxf_aes3_descriptor_key      = { 0x06,0x0E,0x2B,0x34,0x02,0x53,0x01,0x01,0x0d,0x01,0x01,0x01,0x01,0x01,0x47,0x00 };
 995 static const UID mxf_cdci_descriptor_key      = { 0x06,0x0E,0x2B,0x34,0x02,0x53,0x01,0x01,0x0D,0x01,0x01,0x01,0x01,0x01,0x28,0x00 };
 996 static const UID mxf_generic_sound_descriptor_key = { 0x06,0x0E,0x2B,0x34,0x02,0x53,0x01,0x01,0x0D,0x01,0x01,0x01,0x01,0x01,0x42,0x00 };
 997
 998 static void mxf_write_cdci_common(AVFormatContext *s, AVStream *st, const UID key, unsigned size)
 999 {
1000     MXFStreamContext *sc = st->priv_data;
1001     AVIOContext *pb = s->pb;
1002     int stored_height = (st->codec->height+15)/16*16;
1003     int display_height;
1004     int f1, f2;
1005     unsigned desc_size = size+8+8+8+8+8+8+8+5+16+sc->interlaced*4+12+20+5;
1006     if (sc->interlaced && sc->field_dominance)
1007         desc_size += 5;
1008     if (sc->signal_standard)
1009         desc_size += 5;
1010
1011     mxf_write_generic_desc(s, st, key, desc_size);
1012
1013     mxf_write_local_tag(pb, 4, 0x3203);
1014     avio_wb32(pb, st->codec->width);
1015
1016     mxf_write_local_tag(pb, 4, 0x3202);
1017     avio_wb32(pb, stored_height>>sc->interlaced);
1018
1019     mxf_write_local_tag(pb, 4, 0x3209);
1020     avio_wb32(pb, st->codec->width);
1021
1022     if (st->codec->height == 608) // PAL + VBI
1023         display_height = 576;
1024     else if (st->codec->height == 512)  // NTSC + VBI
1025         display_height = 486;
1026     else
1027         display_height = st->codec->height;
1028
1029     mxf_write_local_tag(pb, 4, 0x3208);
1030     avio_wb32(pb, display_height>>sc->interlaced);
1031
1032     // presentation Y offset
1033     mxf_write_local_tag(pb, 4, 0x320B);
1034     avio_wb32(pb, (st->codec->height - display_height)>>sc->interlaced);
1035
1036     // component depth
1037     mxf_write_local_tag(pb, 4, 0x3301);
1038     avio_wb32(pb, sc->component_depth);
1039
1040     // horizontal subsampling
1041     mxf_write_local_tag(pb, 4, 0x3302);
1042     avio_wb32(pb, sc->h_chroma_sub_sample);
1043
1044     // color siting
1045     mxf_write_local_tag(pb, 1, 0x3303);
1046     avio_w8(pb, sc->color_siting);
1047
1048     if (sc->signal_standard) {
1049         mxf_write_local_tag(pb, 1, 0x3215);
1050         avio_w8(pb, sc->signal_standard);
1051     }
1052
1053     // frame layout
1054     mxf_write_local_tag(pb, 1, 0x320C);
1055     avio_w8(pb, sc->interlaced);
1056
1057     // video line map
1058     switch (st->codec->height) {
1059     case  576: f1 = 23; f2 = st->codec->codec_id == AV_CODEC_ID_DVVIDEO ? 335 : 336; break;
1060     case  608: f1 =  7; f2 = 320; break;
1061     case  480: f1 = 20; f2 = st->codec->codec_id == AV_CODEC_ID_DVVIDEO ? 285 : 283; break;
1062     case  512: f1 =  7; f2 = 270; break;
1063     case  720: f1 = 26; f2 =   0; break; // progressive
1064     case 1080: f1 = 21; f2 = 584; break;
1065     default:   f1 =  0; f2 =   0; break;
1066     }
1067
1068     if (!sc->interlaced) {
1069         f2  = 0;
1070         f1 *= 2;
1071     }
1072
1073     mxf_write_local_tag(pb, 12+sc->interlaced*4, 0x320D);
1074     avio_wb32(pb, sc->interlaced ? 2 : 1);
1075     avio_wb32(pb, 4);
1076     avio_wb32(pb, f1);
1077     if (sc->interlaced)
1078         avio_wb32(pb, f2);
1079
1080     mxf_write_local_tag(pb, 8, 0x320E);
1081     avio_wb32(pb, sc->aspect_ratio.num);
1082     avio_wb32(pb, sc->aspect_ratio.den);
1083
1084     mxf_write_local_tag(pb, 16, 0x3201);
1085     avio_write(pb, *sc->codec_ul, 16);
1086
1087     if (sc->interlaced && sc->field_dominance) {
1088         mxf_write_local_tag(pb, 1, 0x3212);
1089         avio_w8(pb, sc->field_dominance);
1090     }
1091
1092 }
1093
1094 static void mxf_write_cdci_desc(AVFormatContext *s, AVStream *st)
1095 {
1096     mxf_write_cdci_common(s, st, mxf_cdci_descriptor_key, 0);
1097 }
1098
1099 static void mxf_write_mpegvideo_desc(AVFormatContext *s, AVStream *st)
1100 {
1101     AVIOContext *pb = s->pb;
1102     MXFStreamContext *sc = st->priv_data;
1103     int profile_and_level = (st->codec->profile<<4) | st->codec->level;
1104
1105     if (st->codec->codec_id != AV_CODEC_ID_H264) {
1106         mxf_write_cdci_common(s, st, mxf_mpegvideo_descriptor_key, 8+5);
1107
1108         // bit rate
1109         mxf_write_local_tag(pb, 4, 0x8000);
1110         avio_wb32(pb, sc->video_bit_rate);
1111
1112         // profile and level
1113         mxf_write_local_tag(pb, 1, 0x8007);
1114         if (!st->codec->profile)
1115             profile_and_level |= 0x80; // escape bit
1116         avio_w8(pb, profile_and_level);
1117     } else {
1118         mxf_write_cdci_common(s, st, mxf_mpegvideo_descriptor_key, 0);
1119     }
1120 }
1121
1122 static void mxf_write_generic_sound_common(AVFormatContext *s, AVStream *st, const UID key, unsigned size)
1123 {
1124     AVIOContext *pb = s->pb;
1125     MXFContext *mxf = s->priv_data;
1126     int show_warnings = !mxf->footer_partition_offset;
1127     int duration_size = 0;
1128
1129     if (s->oformat == &ff_mxf_opatom_muxer)
1130         duration_size = 12;
1131
1132     mxf_write_generic_desc(s, st, key, size+duration_size+5+12+8+8);
1133
1134     if (duration_size > 0){
1135         mxf_write_local_tag(pb, 8, 0x3002);
1136         avio_wb64(pb, mxf->body_offset / mxf->edit_unit_byte_count);
1137     }
1138
1139     // audio locked
1140     mxf_write_local_tag(pb, 1, 0x3D02);
1141     avio_w8(pb, 1);
1142
1143     // write audio sampling rate
1144     mxf_write_local_tag(pb, 8, 0x3D03);
1145     avio_wb32(pb, st->codec->sample_rate);
1146     avio_wb32(pb, 1);
1147
1148     mxf_write_local_tag(pb, 4, 0x3D07);
1149     if (mxf->channel_count == -1) {
1150         if (show_warnings && (s->oformat == &ff_mxf_d10_muxer) && (st->codec->channels != 4) && (st->codec->channels != 8))
1151             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");
1152         avio_wb32(pb, st->codec->channels);
1153     } else if (s->oformat == &ff_mxf_d10_muxer) {
1154         if (show_warnings && (mxf->channel_count < st->codec->channels))
1155             av_log(s, AV_LOG_WARNING, "d10_channelcount < actual number of audio channels : some channels will be discarded\n");
1156         if (show_warnings && (mxf->channel_count != 4) && (mxf->channel_count != 8))
1157             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");
1158         avio_wb32(pb, mxf->channel_count);
1159     } else {
1160         if (show_warnings && mxf->channel_count != -1 && s->oformat != &ff_mxf_opatom_muxer)
1161             av_log(s, AV_LOG_ERROR, "-d10_channelcount requires MXF D-10 and will be ignored\n");
1162         avio_wb32(pb, st->codec->channels);
1163     }
1164
1165     mxf_write_local_tag(pb, 4, 0x3D01);
1166     avio_wb32(pb, av_get_bits_per_sample(st->codec->codec_id));
1167 }
1168
1169 static void mxf_write_wav_common(AVFormatContext *s, AVStream *st, const UID key, unsigned size)
1170 {
1171     AVIOContext *pb = s->pb;
1172
1173     mxf_write_generic_sound_common(s, st, key, size+6+8);
1174
1175     mxf_write_local_tag(pb, 2, 0x3D0A);
1176     avio_wb16(pb, st->codec->block_align);
1177
1178     // avg bytes per sec
1179     mxf_write_local_tag(pb, 4, 0x3D09);
1180     avio_wb32(pb, st->codec->block_align*st->codec->sample_rate);
1181 }
1182
1183 static void mxf_write_wav_desc(AVFormatContext *s, AVStream *st)
1184 {
1185     mxf_write_wav_common(s, st, mxf_wav_descriptor_key, 0);
1186 }
1187
1188 static void mxf_write_aes3_desc(AVFormatContext *s, AVStream *st)
1189 {
1190     mxf_write_wav_common(s, st, mxf_aes3_descriptor_key, 0);
1191 }
1192
1193 static void mxf_write_generic_sound_desc(AVFormatContext *s, AVStream *st)
1194 {
1195     mxf_write_generic_sound_common(s, st, mxf_generic_sound_descriptor_key, 0);
1196 }
1197
1198 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 };
1199
1200 static int mxf_write_tagged_value(AVFormatContext *s, const char* name, const char* value)
1201 {
1202     MXFContext *mxf = s->priv_data;
1203     AVIOContext *pb = s->pb;
1204     int name_size = mxf_utf16_local_tag_length(name);
1205     int indirect_value_size = 13 + mxf_utf16_local_tag_length(value);
1206
1207     if (!name_size || indirect_value_size == 13)
1208         return 1;
1209
1210     mxf_write_metadata_key(pb, 0x013f00);
1211     klv_encode_ber_length(pb, 24 + name_size + indirect_value_size);
1212
1213     // write instance UID
1214     mxf_write_local_tag(pb, 16, 0x3C0A);
1215     mxf_write_uuid(pb, TaggedValue, mxf->tagged_value_count);
1216
1217     // write name
1218     mxf_write_local_tag_utf16(pb, 0x5001, name); // Name
1219
1220     // write indirect value
1221     mxf_write_local_tag(pb, indirect_value_size, 0x5003);
1222     avio_write(pb, mxf_indirect_value_utf16le, 17);
1223     avio_put_str16le(pb, value);
1224
1225     mxf->tagged_value_count++;
1226     return 0;
1227 }
1228
1229 static int mxf_write_user_comments(AVFormatContext *s, const AVDictionary *m)
1230 {
1231     MXFContext *mxf = s->priv_data;
1232     AVDictionaryEntry *t = NULL;
1233     int count = 0;
1234
1235     while ((t = av_dict_get(m, "comment_", t, AV_DICT_IGNORE_SUFFIX))) {
1236         if (mxf->tagged_value_count >= UINT16_MAX) {
1237             av_log(s, AV_LOG_ERROR, "too many tagged values, ignoring remaining\n");
1238             return count;
1239         }
1240
1241         if (mxf_write_tagged_value(s, t->key + 8, t->value) == 0)
1242             count++;
1243     }
1244     return count;
1245 }
1246
1247 static void mxf_write_package(AVFormatContext *s, enum MXFMetadataSetType type, const char *package_name)
1248 {
1249     MXFContext *mxf = s->priv_data;
1250     AVIOContext *pb = s->pb;
1251     int i, track_count = s->nb_streams+1;
1252     int name_size = mxf_utf16_local_tag_length(package_name);
1253     int user_comment_count = 0;
1254
1255     if (type == MaterialPackage) {
1256         user_comment_count = mxf_write_user_comments(s, s->metadata);
1257         mxf_write_metadata_key(pb, 0x013600);
1258         PRINT_KEY(s, "Material Package key", pb->buf_ptr - 16);
1259         klv_encode_ber_length(pb, 104 + name_size + (16*track_count) + (16*user_comment_count));
1260     } else {
1261         mxf_write_metadata_key(pb, 0x013700);
1262         PRINT_KEY(s, "Source Package key", pb->buf_ptr - 16);
1263         klv_encode_ber_length(pb, 124 + name_size + (16*track_count)); // 20 bytes length for descriptor reference
1264     }
1265
1266     // write uid
1267     mxf_write_local_tag(pb, 16, 0x3C0A);
1268     mxf_write_uuid(pb, type, 0);
1269     av_log(s,AV_LOG_DEBUG, "package type:%d\n", type);
1270     PRINT_KEY(s, "package uid", pb->buf_ptr - 16);
1271
1272     // write package umid
1273     mxf_write_local_tag(pb, 32, 0x4401);
1274     mxf_write_umid(s, type == SourcePackage);
1275     PRINT_KEY(s, "package umid second part", pb->buf_ptr - 16);
1276
1277     // package name
1278     if (name_size)
1279         mxf_write_local_tag_utf16(pb, 0x4402, package_name);
1280
1281     // package creation date
1282     mxf_write_local_tag(pb, 8, 0x4405);
1283     avio_wb64(pb, mxf->timestamp);
1284
1285     // package modified date
1286     mxf_write_local_tag(pb, 8, 0x4404);
1287     avio_wb64(pb, mxf->timestamp);
1288
1289     // write track refs
1290     mxf_write_local_tag(pb, track_count*16 + 8, 0x4403);
1291     mxf_write_refs_count(pb, track_count);
1292     mxf_write_uuid(pb, type == MaterialPackage ? Track :
1293                    Track + TypeBottom, -1); // timecode track
1294     for (i = 0; i < s->nb_streams; i++)
1295         mxf_write_uuid(pb, type == MaterialPackage ? Track : Track + TypeBottom, i);
1296
1297     // write user comment refs
1298     mxf_write_local_tag(pb, user_comment_count*16 + 8, 0x4406);
1299     mxf_write_refs_count(pb, user_comment_count);
1300     for (i = 0; i < user_comment_count; i++)
1301          mxf_write_uuid(pb, TaggedValue, mxf->tagged_value_count - user_comment_count + i);
1302
1303     // write multiple descriptor reference
1304     if (type == SourcePackage) {
1305         mxf_write_local_tag(pb, 16, 0x4701);
1306         if (s->nb_streams > 1) {
1307             mxf_write_uuid(pb, MultipleDescriptor, 0);
1308             mxf_write_multi_descriptor(s);
1309         } else
1310             mxf_write_uuid(pb, SubDescriptor, 0);
1311     }
1312
1313     // write timecode track
1314     mxf_write_track(s, mxf->timecode_track, type);
1315     mxf_write_sequence(s, mxf->timecode_track, type);
1316     mxf_write_timecode_component(s, mxf->timecode_track, type);
1317
1318     for (i = 0; i < s->nb_streams; i++) {
1319         AVStream *st = s->streams[i];
1320         mxf_write_track(s, st, type);
1321         mxf_write_sequence(s, st, type);
1322         mxf_write_structural_component(s, st, type);
1323
1324         if (type == SourcePackage) {
1325             MXFStreamContext *sc = st->priv_data;
1326             mxf_essence_container_uls[sc->index].write_desc(s, st);
1327         }
1328     }
1329 }
1330
1331 static int mxf_write_essence_container_data(AVFormatContext *s)
1332 {
1333     AVIOContext *pb = s->pb;
1334
1335     mxf_write_metadata_key(pb, 0x012300);
1336     klv_encode_ber_length(pb, 72);
1337
1338     mxf_write_local_tag(pb, 16, 0x3C0A); // Instance UID
1339     mxf_write_uuid(pb, EssenceContainerData, 0);
1340
1341     mxf_write_local_tag(pb, 32, 0x2701); // Linked Package UID
1342     mxf_write_umid(s, 1);
1343
1344     mxf_write_local_tag(pb, 4, 0x3F07); // BodySID
1345     avio_wb32(pb, 1);
1346
1347     mxf_write_local_tag(pb, 4, 0x3F06); // IndexSID
1348     avio_wb32(pb, 2);
1349
1350     return 0;
1351 }
1352
1353 static int mxf_write_header_metadata_sets(AVFormatContext *s)
1354 {
1355     const char *material_package_name = NULL;
1356     const char *file_package_name = NULL;
1357     AVDictionaryEntry *entry = NULL;
1358     AVStream *st = NULL;
1359     int i;
1360
1361     if (entry = av_dict_get(s->metadata, "material_package_name", NULL, 0))
1362        material_package_name = entry->value;
1363
1364     if (entry = av_dict_get(s->metadata, "file_package_name", NULL, 0)) {
1365         file_package_name = entry->value;
1366     } else {
1367         /* check if any of the streams contain a file_package_name */
1368         for (i = 0; i < s->nb_streams; i++) {
1369             st = s->streams[i];
1370             if (entry = av_dict_get(st->metadata, "file_package_name", NULL, 0)) {
1371                 file_package_name = entry->value;
1372                 break;
1373             }
1374         }
1375     }
1376
1377     mxf_write_preface(s);
1378     mxf_write_identification(s);
1379     mxf_write_content_storage(s);
1380     mxf_write_package(s, MaterialPackage, material_package_name);
1381     mxf_write_package(s, SourcePackage, file_package_name);
1382     mxf_write_essence_container_data(s);
1383     return 0;
1384 }
1385
1386 static unsigned klv_fill_size(uint64_t size)
1387 {
1388     unsigned pad = KAG_SIZE - (size & (KAG_SIZE-1));
1389     if (pad < 20) // smallest fill item possible
1390         return pad + KAG_SIZE;
1391     else
1392         return pad & (KAG_SIZE-1);
1393 }
1394
1395 static void mxf_write_index_table_segment(AVFormatContext *s)
1396 {
1397     MXFContext *mxf = s->priv_data;
1398     AVIOContext *pb = s->pb;
1399     int i, j, temporal_reordering = 0;
1400     int key_index = mxf->last_key_index;
1401
1402     av_log(s, AV_LOG_DEBUG, "edit units count %d\n", mxf->edit_units_count);
1403
1404     if (!mxf->edit_units_count && !mxf->edit_unit_byte_count)
1405         return;
1406
1407     avio_write(pb, index_table_segment_key, 16);
1408
1409     if (mxf->edit_unit_byte_count) {
1410         klv_encode_ber_length(pb, 80);
1411     } else {
1412         klv_encode_ber_length(pb, 85 + 12+(s->nb_streams+1LL)*6 +
1413                               12+mxf->edit_units_count*(11+mxf->slice_count*4LL));
1414     }
1415
1416     // instance id
1417     mxf_write_local_tag(pb, 16, 0x3C0A);
1418     mxf_write_uuid(pb, IndexTableSegment, 0);
1419
1420     // index edit rate
1421     mxf_write_local_tag(pb, 8, 0x3F0B);
1422     avio_wb32(pb, mxf->time_base.den);
1423     avio_wb32(pb, mxf->time_base.num);
1424
1425     // index start position
1426     mxf_write_local_tag(pb, 8, 0x3F0C);
1427     avio_wb64(pb, mxf->last_indexed_edit_unit);
1428
1429     // index duration
1430     mxf_write_local_tag(pb, 8, 0x3F0D);
1431     if (mxf->edit_unit_byte_count)
1432         avio_wb64(pb, 0); // index table covers whole container
1433     else
1434         avio_wb64(pb, mxf->edit_units_count);
1435
1436     // edit unit byte count
1437     mxf_write_local_tag(pb, 4, 0x3F05);
1438     avio_wb32(pb, mxf->edit_unit_byte_count);
1439
1440     // index sid
1441     mxf_write_local_tag(pb, 4, 0x3F06);
1442     avio_wb32(pb, 2);
1443
1444     // body sid
1445     mxf_write_local_tag(pb, 4, 0x3F07);
1446     avio_wb32(pb, 1);
1447
1448     if (!mxf->edit_unit_byte_count) {
1449         // real slice count - 1
1450         mxf_write_local_tag(pb, 1, 0x3F08);
1451         avio_w8(pb, mxf->slice_count);
1452
1453         // delta entry array
1454         mxf_write_local_tag(pb, 8 + (s->nb_streams+1)*6, 0x3F09);
1455         avio_wb32(pb, s->nb_streams+1); // num of entries
1456         avio_wb32(pb, 6);               // size of one entry
1457         // write system item delta entry
1458         avio_w8(pb, 0);
1459         avio_w8(pb, 0); // slice entry
1460         avio_wb32(pb, 0); // element delta
1461         for (i = 0; i < s->nb_streams; i++) {
1462             AVStream *st = s->streams[i];
1463             MXFStreamContext *sc = st->priv_data;
1464             avio_w8(pb, sc->temporal_reordering);
1465             if (sc->temporal_reordering)
1466                 temporal_reordering = 1;
1467             if (i == 0) { // video track
1468                 avio_w8(pb, 0); // slice number
1469                 avio_wb32(pb, KAG_SIZE); // system item size including klv fill
1470             } else { // audio track
1471                 unsigned audio_frame_size = sc->aic.samples[0]*sc->aic.sample_size;
1472                 audio_frame_size += klv_fill_size(audio_frame_size);
1473                 avio_w8(pb, 1);
1474                 avio_wb32(pb, (i-1)*audio_frame_size); // element delta
1475             }
1476         }
1477
1478         mxf_write_local_tag(pb, 8 + mxf->edit_units_count*(11+mxf->slice_count*4), 0x3F0A);
1479         avio_wb32(pb, mxf->edit_units_count);  // num of entries
1480         avio_wb32(pb, 11+mxf->slice_count*4);  // size of one entry
1481
1482         for (i = 0; i < mxf->edit_units_count; i++) {
1483             int temporal_offset = 0;
1484
1485             if (!(mxf->index_entries[i].flags & 0x33)) { // I frame
1486                 mxf->last_key_index = key_index;
1487                 key_index = i;
1488             }
1489
1490             if (temporal_reordering) {
1491                 int pic_num_in_gop = i - key_index;
1492                 if (pic_num_in_gop != mxf->index_entries[i].temporal_ref) {
1493                     for (j = key_index; j < mxf->edit_units_count; j++) {
1494                         if (pic_num_in_gop == mxf->index_entries[j].temporal_ref)
1495                             break;
1496                     }
1497                     if (j == mxf->edit_units_count)
1498                         av_log(s, AV_LOG_WARNING, "missing frames\n");
1499                     temporal_offset = j - key_index - pic_num_in_gop;
1500                 }
1501             }
1502             avio_w8(pb, temporal_offset);
1503
1504             if ((mxf->index_entries[i].flags & 0x30) == 0x30) { // back and forward prediction
1505                 avio_w8(pb, mxf->last_key_index - i);
1506             } else {
1507                 avio_w8(pb, key_index - i); // key frame offset
1508                 if ((mxf->index_entries[i].flags & 0x20) == 0x20) // only forward
1509                     mxf->last_key_index = key_index;
1510             }
1511
1512             if (!(mxf->index_entries[i].flags & 0x33) && // I frame
1513                 mxf->index_entries[i].flags & 0x40 && !temporal_offset)
1514                 mxf->index_entries[i].flags |= 0x80; // random access
1515             avio_w8(pb, mxf->index_entries[i].flags);
1516             // stream offset
1517             avio_wb64(pb, mxf->index_entries[i].offset);
1518             if (s->nb_streams > 1)
1519                 avio_wb32(pb, mxf->index_entries[i].slice_offset);
1520         }
1521
1522         mxf->last_key_index = key_index - mxf->edit_units_count;
1523         mxf->last_indexed_edit_unit += mxf->edit_units_count;
1524         mxf->edit_units_count = 0;
1525     }
1526 }
1527
1528 static void mxf_write_klv_fill(AVFormatContext *s)
1529 {
1530     unsigned pad = klv_fill_size(avio_tell(s->pb));
1531     if (pad) {
1532         avio_write(s->pb, klv_fill_key, 16);
1533         pad -= 16 + 4;
1534         klv_encode_ber4_length(s->pb, pad);
1535         ffio_fill(s->pb, 0, pad);
1536         av_assert1(!(avio_tell(s->pb) & (KAG_SIZE-1)));
1537     }
1538 }
1539
1540 static int mxf_write_partition(AVFormatContext *s, int bodysid,
1541                                 int indexsid,
1542                                 const uint8_t *key, int write_metadata)
1543 {
1544     MXFContext *mxf = s->priv_data;
1545     AVIOContext *pb = s->pb;
1546     int64_t header_byte_count_offset;
1547     unsigned index_byte_count = 0;
1548     uint64_t partition_offset = avio_tell(pb);
1549     int err;
1550
1551     if (!mxf->edit_unit_byte_count && mxf->edit_units_count)
1552         index_byte_count = 85 + 12+(s->nb_streams+1)*6 +
1553             12+mxf->edit_units_count*(11+mxf->slice_count*4);
1554     else if (mxf->edit_unit_byte_count && indexsid)
1555         index_byte_count = 80;
1556
1557     if (index_byte_count) {
1558         // add encoded ber length
1559         index_byte_count += 16 + klv_ber_length(index_byte_count);
1560         index_byte_count += klv_fill_size(index_byte_count);
1561     }
1562
1563     if (key && !memcmp(key, body_partition_key, 16)) {
1564         if ((err = av_reallocp_array(&mxf->body_partition_offset, mxf->body_partitions_count + 1,
1565                                      sizeof(*mxf->body_partition_offset))) < 0) {
1566             mxf->body_partitions_count = 0;
1567             return err;
1568         }
1569         mxf->body_partition_offset[mxf->body_partitions_count++] = partition_offset;
1570     }
1571
1572     // write klv
1573     if (key)
1574         avio_write(pb, key, 16);
1575     else
1576         avio_write(pb, body_partition_key, 16);
1577
1578     klv_encode_ber_length(pb, 88 + 16LL * DESCRIPTOR_COUNT(mxf->essence_container_count));
1579
1580     // write partition value
1581     avio_wb16(pb, 1); // majorVersion
1582     avio_wb16(pb, 2); // minorVersion
1583     avio_wb32(pb, KAG_SIZE); // KAGSize
1584
1585     avio_wb64(pb, partition_offset); // ThisPartition
1586
1587     if (key && !memcmp(key, body_partition_key, 16) && mxf->body_partitions_count > 1)
1588         avio_wb64(pb, mxf->body_partition_offset[mxf->body_partitions_count-2]); // PreviousPartition
1589     else if (key && !memcmp(key, footer_partition_key, 16) && mxf->body_partitions_count)
1590         avio_wb64(pb, mxf->body_partition_offset[mxf->body_partitions_count-1]); // PreviousPartition
1591     else
1592         avio_wb64(pb, 0);
1593
1594     avio_wb64(pb, mxf->footer_partition_offset); // footerPartition
1595
1596     // set offset
1597     header_byte_count_offset = avio_tell(pb);
1598     avio_wb64(pb, 0); // headerByteCount, update later
1599
1600     // indexTable
1601     avio_wb64(pb, index_byte_count); // indexByteCount
1602     avio_wb32(pb, index_byte_count ? indexsid : 0); // indexSID
1603
1604     // BodyOffset
1605     if (bodysid && mxf->edit_units_count && mxf->body_partitions_count && s->oformat != &ff_mxf_opatom_muxer)
1606         avio_wb64(pb, mxf->body_offset);
1607     else
1608         avio_wb64(pb, 0);
1609
1610     avio_wb32(pb, bodysid); // bodySID
1611
1612     // operational pattern
1613     if (s->oformat == &ff_mxf_opatom_muxer)
1614         avio_write(pb, opatom_ul, 16);
1615     else
1616         avio_write(pb, op1a_ul, 16);
1617
1618     // essence container
1619     mxf_write_essence_container_refs(s);
1620
1621     if (write_metadata) {
1622         // mark the start of the headermetadata and calculate metadata size
1623         int64_t pos, start;
1624         unsigned header_byte_count;
1625
1626         mxf_write_klv_fill(s);
1627         start = avio_tell(s->pb);
1628         mxf_write_primer_pack(s);
1629         mxf_write_header_metadata_sets(s);
1630         pos = avio_tell(s->pb);
1631         header_byte_count = pos - start + klv_fill_size(pos);
1632
1633         // update header_byte_count
1634         avio_seek(pb, header_byte_count_offset, SEEK_SET);
1635         avio_wb64(pb, header_byte_count);
1636         avio_seek(pb, pos, SEEK_SET);
1637     }
1638
1639     if(key)
1640         avio_flush(pb);
1641
1642     return 0;
1643 }
1644
1645 static int mxf_parse_dnxhd_frame(AVFormatContext *s, AVStream *st,
1646 AVPacket *pkt)
1647 {
1648     MXFContext *mxf = s->priv_data;
1649     MXFStreamContext *sc = st->priv_data;
1650     int i, cid;
1651     uint8_t* header_cid;
1652     int frame_size = 0;
1653
1654     if (mxf->header_written)
1655         return 1;
1656
1657     if (pkt->size < 43)
1658         return -1;
1659
1660     header_cid = pkt->data + 0x28;
1661     cid = header_cid[0] << 24 | header_cid[1] << 16 | header_cid[2] << 8 | header_cid[3];
1662
1663     if ((frame_size = avpriv_dnxhd_get_frame_size(cid)) < 0)
1664         return -1;
1665     if ((sc->interlaced = avpriv_dnxhd_get_interlaced(cid)) < 0)
1666         return AVERROR_INVALIDDATA;
1667
1668     switch (cid) {
1669     case 1235:
1670         sc->index = 24;
1671         sc->component_depth = 10;
1672         break;
1673     case 1237:
1674         sc->index = 25;
1675         break;
1676     case 1238:
1677         sc->index = 26;
1678         break;
1679     case 1241:
1680         sc->index = 27;
1681         sc->component_depth = 10;
1682         break;
1683     case 1242:
1684         sc->index = 28;
1685         break;
1686     case 1243:
1687         sc->index = 29;
1688         break;
1689     case 1250:
1690         sc->index = 30;
1691         sc->component_depth = 10;
1692         break;
1693     case 1251:
1694         sc->index = 31;
1695         break;
1696     case 1252:
1697         sc->index = 32;
1698         break;
1699     case 1253:
1700         sc->index = 33;
1701         break;
1702     default:
1703         return -1;
1704     }
1705
1706     sc->codec_ul = &mxf_essence_container_uls[sc->index].codec_ul;
1707     sc->aspect_ratio = (AVRational){ 16, 9 };
1708
1709     if(s->oformat == &ff_mxf_opatom_muxer){
1710         mxf->edit_unit_byte_count = frame_size;
1711         return 1;
1712     }
1713
1714     mxf->edit_unit_byte_count = KAG_SIZE;
1715     for (i = 0; i < s->nb_streams; i++) {
1716         AVStream *st = s->streams[i];
1717         MXFStreamContext *sc = st->priv_data;
1718         if (st->codec->codec_type == AVMEDIA_TYPE_AUDIO) {
1719             mxf->edit_unit_byte_count += 16 + 4 + sc->aic.samples[0]*sc->aic.sample_size;
1720             mxf->edit_unit_byte_count += klv_fill_size(mxf->edit_unit_byte_count);
1721         } else if (st->codec->codec_type == AVMEDIA_TYPE_VIDEO) {
1722             mxf->edit_unit_byte_count += 16 + 4 + frame_size;
1723             mxf->edit_unit_byte_count += klv_fill_size(mxf->edit_unit_byte_count);
1724         }
1725     }
1726
1727     return 1;
1728 }
1729
1730 static int mxf_parse_dv_frame(AVFormatContext *s, AVStream *st, AVPacket *pkt)
1731 {
1732     MXFContext *mxf = s->priv_data;
1733     MXFStreamContext *sc = st->priv_data;
1734     uint8_t *vs_pack, *vsc_pack;
1735     int i, ul_index, frame_size, stype, pal;
1736
1737     if (mxf->header_written)
1738         return 1;
1739
1740     // Check for minimal frame size
1741     if (pkt->size < 120000)
1742         return -1;
1743
1744     vs_pack  = pkt->data + 80*5 + 48;
1745     vsc_pack = pkt->data + 80*5 + 53;
1746     stype    = vs_pack[3] & 0x1f;
1747     pal      = (vs_pack[3] >> 5) & 0x1;
1748
1749     if ((vs_pack[2] & 0x07) == 0x02)
1750         sc->aspect_ratio = (AVRational){ 16, 9 };
1751     else
1752         sc->aspect_ratio = (AVRational){ 4, 3 };
1753
1754     sc->interlaced = (vsc_pack[3] >> 4) & 0x01;
1755     // TODO: fix dv encoder to set proper FF/FS value in VSC pack
1756     // and set field dominance accordingly
1757     // av_log(s, AV_LOG_DEBUG, "DV vsc pack ff/ss = %x\n", vsc_pack[2] >> 6);
1758
1759     switch (stype) {
1760     case 0x18: // DV100 720p
1761         ul_index = 6 + pal;
1762         frame_size = pal ? 288000 : 240000;
1763         if (sc->interlaced) {
1764             av_log(s, AV_LOG_ERROR, "source marked as interlaced but codec profile is progressive\n");
1765             sc->interlaced = 0;
1766         }
1767         break;
1768     case 0x14: // DV100 1080i
1769         ul_index = 4 + pal;
1770         frame_size = pal ? 576000 : 480000;
1771         break;
1772     case 0x04: // DV50
1773         ul_index = 2 + pal;
1774         frame_size = pal ? 288000 : 240000;
1775         break;
1776     default: // DV25
1777         ul_index = 0 + pal;
1778         frame_size = pal ? 144000 : 120000;
1779     }
1780
1781     sc->index = ul_index + 16;
1782     sc->codec_ul =  &mxf_essence_container_uls[sc->index].codec_ul;
1783
1784     if(s->oformat == &ff_mxf_opatom_muxer) {
1785         mxf->edit_unit_byte_count = frame_size;
1786         return 1;
1787     }
1788
1789     mxf->edit_unit_byte_count = KAG_SIZE;
1790     for (i = 0; i < s->nb_streams; i++) {
1791         AVStream *st = s->streams[i];
1792         MXFStreamContext *sc = st->priv_data;
1793         if (st->codec->codec_type == AVMEDIA_TYPE_AUDIO) {
1794             mxf->edit_unit_byte_count += 16 + 4 + sc->aic.samples[0]*sc->aic.sample_size;
1795             mxf->edit_unit_byte_count += klv_fill_size(mxf->edit_unit_byte_count);
1796         } else if (st->codec->codec_type == AVMEDIA_TYPE_VIDEO) {
1797             mxf->edit_unit_byte_count += 16 + 4 + frame_size;
1798             mxf->edit_unit_byte_count += klv_fill_size(mxf->edit_unit_byte_count);
1799         }
1800     }
1801
1802     return 1;
1803 }
1804
1805 static const struct {
1806     UID uid;
1807     int frame_size;
1808     int profile;
1809     uint8_t interlaced;
1810 } mxf_h264_codec_uls[] = {
1811     {{ 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x0a,0x04,0x01,0x02,0x02,0x01,0x32,0x20,0x01 },      0, 110, 0 }, // AVC High 10 Intra
1812     {{ 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x0a,0x04,0x01,0x02,0x02,0x01,0x32,0x21,0x01 }, 232960,   0, 1 }, // AVC Intra 50 1080i60
1813     {{ 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x0a,0x04,0x01,0x02,0x02,0x01,0x32,0x21,0x02 }, 281088,   0, 1 }, // AVC Intra 50 1080i50
1814     {{ 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x0a,0x04,0x01,0x02,0x02,0x01,0x32,0x21,0x03 }, 232960,   0, 0 }, // AVC Intra 50 1080p30
1815     {{ 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x0a,0x04,0x01,0x02,0x02,0x01,0x32,0x21,0x04 }, 281088,   0, 0 }, // AVC Intra 50 1080p25
1816     {{ 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x0a,0x04,0x01,0x02,0x02,0x01,0x32,0x21,0x08 }, 116736,   0, 0 }, // AVC Intra 50 720p60
1817     {{ 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x0a,0x04,0x01,0x02,0x02,0x01,0x32,0x21,0x09 }, 140800,   0, 0 }, // AVC Intra 50 720p50
1818     {{ 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x0a,0x04,0x01,0x02,0x02,0x01,0x32,0x30,0x01 },      0, 122, 0 }, // AVC High 422 Intra
1819     {{ 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x0a,0x04,0x01,0x02,0x02,0x01,0x32,0x31,0x01 }, 472576,   0, 1 }, // AVC Intra 100 1080i60
1820     {{ 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x0a,0x04,0x01,0x02,0x02,0x01,0x32,0x31,0x02 }, 568832,   0, 1 }, // AVC Intra 100 1080i50
1821     {{ 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x0a,0x04,0x01,0x02,0x02,0x01,0x32,0x31,0x03 }, 472576,   0, 0 }, // AVC Intra 100 1080p30
1822     {{ 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x0a,0x04,0x01,0x02,0x02,0x01,0x32,0x31,0x04 }, 568832,   0, 0 }, // AVC Intra 100 1080p25
1823     {{ 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x0a,0x04,0x01,0x02,0x02,0x01,0x32,0x31,0x08 }, 236544,   0, 0 }, // AVC Intra 100 720p60
1824     {{ 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x0a,0x04,0x01,0x02,0x02,0x01,0x32,0x31,0x09 }, 284672,   0, 0 }, // AVC Intra 100 720p50
1825 };
1826
1827 static int mxf_parse_h264_frame(AVFormatContext *s, AVStream *st,
1828                                 AVPacket *pkt, MXFIndexEntry *e)
1829 {
1830     MXFContext *mxf = s->priv_data;
1831     MXFStreamContext *sc = st->priv_data;
1832     static const int mxf_h264_num_codec_uls = sizeof(mxf_h264_codec_uls) / sizeof(mxf_h264_codec_uls[0]);
1833     const uint8_t *buf = pkt->data;
1834     const uint8_t *buf_end = pkt->data + pkt->size;
1835     uint32_t state = -1;
1836     int extra_size = 512; // support AVC Intra files without SPS/PPS header
1837     int i, frame_size;
1838     uint8_t uid_found;
1839
1840     if (pkt->size > extra_size)
1841         buf_end -= pkt->size - extra_size; // no need to parse beyond SPS/PPS header
1842
1843     for (;;) {
1844         buf = avpriv_find_start_code(buf, buf_end, &state);
1845         if (buf >= buf_end)
1846             break;
1847         --buf;
1848         switch (state & 0x1f) {
1849         case NAL_SPS:
1850             st->codec->profile = buf[1];
1851             e->flags |= 0x40;
1852             break;
1853         case NAL_PPS:
1854             if (e->flags & 0x40) { // sequence header present
1855                 e->flags |= 0x80; // random access
1856                 extra_size = 0;
1857                 buf = buf_end;
1858             }
1859             break;
1860         default:
1861             break;
1862         }
1863     }
1864
1865     if (mxf->header_written)
1866         return 1;
1867
1868     sc->aspect_ratio = (AVRational){ 16, 9 }; // 16:9 is mandatory for broadcast HD
1869     sc->component_depth = 10; // AVC Intra is always 10 Bit
1870     sc->interlaced = st->codec->field_order != AV_FIELD_PROGRESSIVE ? 1 : 0;
1871     if (sc->interlaced)
1872         sc->field_dominance = 1; // top field first is mandatory for AVC Intra
1873
1874     uid_found = 0;
1875     frame_size = pkt->size + extra_size;
1876     for (i = 0; i < mxf_h264_num_codec_uls; i++) {
1877         if (frame_size == mxf_h264_codec_uls[i].frame_size && sc->interlaced == mxf_h264_codec_uls[i].interlaced) {
1878             sc->codec_ul = &mxf_h264_codec_uls[i].uid;
1879             return 1;
1880         } else if (st->codec->profile == mxf_h264_codec_uls[i].profile) {
1881             sc->codec_ul = &mxf_h264_codec_uls[i].uid;
1882             uid_found = 1;
1883         }
1884     }
1885
1886     if (!uid_found) {
1887         av_log(s, AV_LOG_ERROR, "AVC Intra 50/100 supported only\n");
1888         return 0;
1889     }
1890
1891     return 1;
1892 }
1893
1894 static const UID mxf_mpeg2_codec_uls[] = {
1895     { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x03,0x04,0x01,0x02,0x02,0x01,0x01,0x10,0x00 }, // MP-ML I-Frame
1896     { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x03,0x04,0x01,0x02,0x02,0x01,0x01,0x11,0x00 }, // MP-ML Long GOP
1897     { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x03,0x04,0x01,0x02,0x02,0x01,0x02,0x02,0x00 }, // 422P-ML I-Frame
1898     { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x03,0x04,0x01,0x02,0x02,0x01,0x02,0x03,0x00 }, // 422P-ML Long GOP
1899     { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x03,0x04,0x01,0x02,0x02,0x01,0x03,0x02,0x00 }, // MP-HL I-Frame
1900     { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x03,0x04,0x01,0x02,0x02,0x01,0x03,0x03,0x00 }, // MP-HL Long GOP
1901     { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x03,0x04,0x01,0x02,0x02,0x01,0x04,0x02,0x00 }, // 422P-HL I-Frame
1902     { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x03,0x04,0x01,0x02,0x02,0x01,0x04,0x03,0x00 }, // 422P-HL Long GOP
1903     { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x03,0x04,0x01,0x02,0x02,0x01,0x05,0x02,0x00 }, // MP@H-14 I-Frame
1904     { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x03,0x04,0x01,0x02,0x02,0x01,0x05,0x03,0x00 }, // MP@H-14 Long GOP
1905 };
1906
1907 static const UID *mxf_get_mpeg2_codec_ul(AVCodecContext *avctx)
1908 {
1909     int long_gop = avctx->gop_size > 1 || avctx->has_b_frames;
1910
1911     if (avctx->profile == 4) { // Main
1912         if (avctx->level == 8) // Main
1913             return &mxf_mpeg2_codec_uls[0+long_gop];
1914         else if (avctx->level == 4) // High
1915             return &mxf_mpeg2_codec_uls[4+long_gop];
1916         else if (avctx->level == 6) // High 14
1917             return &mxf_mpeg2_codec_uls[8+long_gop];
1918     } else if (avctx->profile == 0) { // 422
1919         if (avctx->level == 5) // Main
1920             return &mxf_mpeg2_codec_uls[2+long_gop];
1921         else if (avctx->level == 2) // High
1922             return &mxf_mpeg2_codec_uls[6+long_gop];
1923     }
1924     return NULL;
1925 }
1926
1927 static int mxf_parse_mpeg2_frame(AVFormatContext *s, AVStream *st,
1928                                  AVPacket *pkt, MXFIndexEntry *e)
1929 {
1930     MXFStreamContext *sc = st->priv_data;
1931     uint32_t c = -1;
1932     int i;
1933
1934     for(i = 0; i < pkt->size - 4; i++) {
1935         c = (c<<8) + pkt->data[i];
1936         if (c == 0x1b5) {
1937             if ((pkt->data[i+1] & 0xf0) == 0x10) { // seq ext
1938                 st->codec->profile = pkt->data[i+1] & 0x07;
1939                 st->codec->level   = pkt->data[i+2] >> 4;
1940             } else if (i + 5 < pkt->size && (pkt->data[i+1] & 0xf0) == 0x80) { // pict coding ext
1941                 sc->interlaced = !(pkt->data[i+5] & 0x80); // progressive frame
1942                 if (sc->interlaced)
1943                     sc->field_dominance = 1 + !(pkt->data[i+4] & 0x80); // top field first
1944                 break;
1945             }
1946         } else if (c == 0x1b8) { // gop
1947             if (pkt->data[i+4]>>6 & 0x01) { // closed
1948                 sc->closed_gop = 1;
1949                 if (e->flags & 0x40) // sequence header present
1950                     e->flags |= 0x80; // random access
1951             }
1952         } else if (c == 0x1b3) { // seq
1953             e->flags |= 0x40;
1954             switch ((pkt->data[i+4]>>4) & 0xf) {
1955             case 2:  sc->aspect_ratio = (AVRational){  4,  3}; break;
1956             case 3:  sc->aspect_ratio = (AVRational){ 16,  9}; break;
1957             case 4:  sc->aspect_ratio = (AVRational){221,100}; break;
1958             default:
1959                 av_reduce(&sc->aspect_ratio.num, &sc->aspect_ratio.den,
1960                           st->codec->width, st->codec->height, 1024*1024);
1961             }
1962         } else if (c == 0x100) { // pic
1963             int pict_type = (pkt->data[i+2]>>3) & 0x07;
1964             e->temporal_ref = (pkt->data[i+1]<<2) | (pkt->data[i+2]>>6);
1965             if (pict_type == 2) { // P frame
1966                 e->flags |= 0x22;
1967                 sc->closed_gop = 0; // reset closed gop, don't matter anymore
1968             } else if (pict_type == 3) { // B frame
1969                 if (sc->closed_gop)
1970                     e->flags |= 0x13; // only backward prediction
1971                 else
1972                     e->flags |= 0x33;
1973                 sc->temporal_reordering = -1;
1974             } else if (!pict_type) {
1975                 av_log(s, AV_LOG_ERROR, "error parsing mpeg2 frame\n");
1976                 return 0;
1977             }
1978         }
1979     }
1980     if (s->oformat != &ff_mxf_d10_muxer)
1981         sc->codec_ul = mxf_get_mpeg2_codec_ul(st->codec);
1982     return !!sc->codec_ul;
1983 }
1984
1985 static uint64_t mxf_parse_timestamp(time_t timestamp)
1986 {
1987     struct tm tmbuf;
1988     struct tm *time = gmtime_r(&timestamp, &tmbuf);
1989     if (!time)
1990         return 0;
1991     return (uint64_t)(time->tm_year+1900) << 48 |
1992            (uint64_t)(time->tm_mon+1)     << 40 |
1993            (uint64_t) time->tm_mday       << 32 |
1994                       time->tm_hour       << 24 |
1995                       time->tm_min        << 16 |
1996                       time->tm_sec        << 8;
1997 }
1998
1999 static void mxf_gen_umid(AVFormatContext *s)
2000 {
2001     MXFContext *mxf = s->priv_data;
2002     uint32_t seed = av_get_random_seed();
2003     uint64_t umid = seed + 0x5294713400000000LL;
2004
2005     AV_WB64(mxf->umid  , umid);
2006     AV_WB64(mxf->umid+8, umid>>8);
2007
2008     mxf->instance_number = seed & 0xFFFFFF;
2009 }
2010
2011 static int mxf_init_timecode(AVFormatContext *s, AVStream *st, AVRational rate)
2012 {
2013     MXFContext *mxf = s->priv_data;
2014     AVDictionaryEntry *tcr = av_dict_get(s->metadata, "timecode", NULL, 0);
2015     if (!tcr)
2016         tcr = av_dict_get(st->metadata, "timecode", NULL, 0);
2017
2018     if (tcr)
2019         return av_timecode_init_from_string(&mxf->tc, rate, tcr->value, s);
2020     else
2021         return av_timecode_init(&mxf->tc, rate, 0, 0, s);
2022 }
2023
2024 static int mxf_write_header(AVFormatContext *s)
2025 {
2026     MXFContext *mxf = s->priv_data;
2027     int i, ret;
2028     uint8_t present[FF_ARRAY_ELEMS(mxf_essence_container_uls)] = {0};
2029     const MXFSamplesPerFrame *spf = NULL;
2030     AVDictionaryEntry *t;
2031     int64_t timestamp = 0;
2032
2033     if (!s->nb_streams)
2034         return -1;
2035
2036     if (s->oformat == &ff_mxf_opatom_muxer && s->nb_streams !=1){
2037         av_log(s, AV_LOG_ERROR, "there must be exactly one stream for mxf opatom\n");
2038         return -1;
2039     }
2040
2041     for (i = 0; i < s->nb_streams; i++) {
2042         AVStream *st = s->streams[i];
2043         MXFStreamContext *sc = av_mallocz(sizeof(*sc));
2044         if (!sc)
2045             return AVERROR(ENOMEM);
2046         st->priv_data = sc;
2047
2048         if (((i == 0) ^ (st->codec->codec_type == AVMEDIA_TYPE_VIDEO)) && s->oformat != &ff_mxf_opatom_muxer) {
2049             av_log(s, AV_LOG_ERROR, "there must be exactly one video stream and it must be the first one\n");
2050             return -1;
2051         }
2052
2053         if (st->codec->codec_type == AVMEDIA_TYPE_VIDEO) {
2054             const AVPixFmtDescriptor *pix_desc = av_pix_fmt_desc_get(st->codec->pix_fmt);
2055             // TODO: should be avg_frame_rate
2056             AVRational rate, tbc = st->time_base;
2057             // Default component depth to 8
2058             sc->component_depth = 8;
2059             sc->h_chroma_sub_sample = 2;
2060             sc->color_siting = 0xFF;
2061
2062             if (pix_desc) {
2063                 sc->component_depth     = pix_desc->comp[0].depth;
2064                 sc->h_chroma_sub_sample = 1 << pix_desc->log2_chroma_w;
2065             }
2066             switch (ff_choose_chroma_location(s, st)) {
2067             case AVCHROMA_LOC_TOPLEFT: sc->color_siting = 0; break;
2068             case AVCHROMA_LOC_LEFT:    sc->color_siting = 6; break;
2069             case AVCHROMA_LOC_TOP:     sc->color_siting = 1; break;
2070             case AVCHROMA_LOC_CENTER:  sc->color_siting = 3; break;
2071             }
2072
2073             mxf->timecode_base = (tbc.den + tbc.num/2) / tbc.num;
2074             spf = ff_mxf_get_samples_per_frame(s, tbc);
2075             if (!spf) {
2076                 av_log(s, AV_LOG_ERROR, "Unsupported video frame rate %d/%d\n",
2077                        tbc.den, tbc.num);
2078                 return AVERROR(EINVAL);
2079             }
2080             mxf->time_base = spf->time_base;
2081             rate = av_inv_q(mxf->time_base);
2082             avpriv_set_pts_info(st, 64, mxf->time_base.num, mxf->time_base.den);
2083             if((ret = mxf_init_timecode(s, st, rate)) < 0)
2084                 return ret;
2085
2086             sc->video_bit_rate = st->codec->bit_rate ? st->codec->bit_rate : st->codec->rc_max_rate;
2087             if (s->oformat == &ff_mxf_d10_muxer) {
2088                 if ((sc->video_bit_rate == 50000000) && (mxf->time_base.den == 25)) {
2089                     sc->index = 3;
2090                 } else if ((sc->video_bit_rate == 49999840 || sc->video_bit_rate == 50000000) && (mxf->time_base.den != 25)) {
2091                     sc->index = 5;
2092                 } else if (sc->video_bit_rate == 40000000) {
2093                     if (mxf->time_base.den == 25) sc->index = 7;
2094                     else                          sc->index = 9;
2095                 } else if (sc->video_bit_rate == 30000000) {
2096                     if (mxf->time_base.den == 25) sc->index = 11;
2097                     else                          sc->index = 13;
2098                 } else {
2099                     av_log(s, AV_LOG_ERROR, "error MXF D-10 only support 30/40/50 mbit/s\n");
2100                     return -1;
2101                 }
2102
2103                 mxf->edit_unit_byte_count = KAG_SIZE; // system element
2104                 mxf->edit_unit_byte_count += 16 + 4 + (uint64_t)sc->video_bit_rate *
2105                     mxf->time_base.num / (8*mxf->time_base.den);
2106                 mxf->edit_unit_byte_count += klv_fill_size(mxf->edit_unit_byte_count);
2107                 mxf->edit_unit_byte_count += 16 + 4 + 4 + spf->samples_per_frame[0]*8*4;
2108                 mxf->edit_unit_byte_count += klv_fill_size(mxf->edit_unit_byte_count);
2109
2110                 sc->signal_standard = 1;
2111             }
2112             if (mxf->signal_standard >= 0)
2113                 sc->signal_standard = mxf->signal_standard;
2114         } else if (st->codec->codec_type == AVMEDIA_TYPE_AUDIO) {
2115             if (st->codec->sample_rate != 48000) {
2116                 av_log(s, AV_LOG_ERROR, "only 48khz is implemented\n");
2117                 return -1;
2118             }
2119             avpriv_set_pts_info(st, 64, 1, st->codec->sample_rate);
2120             if (s->oformat == &ff_mxf_d10_muxer) {
2121                 if (st->index != 1) {
2122                     av_log(s, AV_LOG_ERROR, "MXF D-10 only support one audio track\n");
2123                     return -1;
2124                 }
2125                 if (st->codec->codec_id != AV_CODEC_ID_PCM_S16LE &&
2126                     st->codec->codec_id != AV_CODEC_ID_PCM_S24LE) {
2127                     av_log(s, AV_LOG_ERROR, "MXF D-10 only support 16 or 24 bits le audio\n");
2128                 }
2129                 sc->index = ((MXFStreamContext*)s->streams[0]->priv_data)->index + 1;
2130             } else if (s->oformat == &ff_mxf_opatom_muxer) {
2131                 AVRational tbc = av_inv_q(mxf->audio_edit_rate);
2132
2133                 if (st->codec->codec_id != AV_CODEC_ID_PCM_S16LE &&
2134                     st->codec->codec_id != AV_CODEC_ID_PCM_S24LE) {
2135                     av_log(s, AV_LOG_ERROR, "Only pcm_s16le and pcm_s24le audio codecs are implemented\n");
2136                     return AVERROR_PATCHWELCOME;
2137                 }
2138                 if (st->codec->channels != 1) {
2139                     av_log(s, AV_LOG_ERROR, "MXF OPAtom only supports single channel audio\n");
2140                     return AVERROR(EINVAL);
2141                 }
2142
2143                 spf = ff_mxf_get_samples_per_frame(s, tbc);
2144                 if (!spf){
2145                     av_log(s, AV_LOG_ERROR, "Unsupported timecode frame rate %d/%d\n", tbc.den, tbc.num);
2146                     return AVERROR(EINVAL);
2147                 }
2148
2149                 mxf->time_base = st->time_base;
2150                 if((ret = mxf_init_timecode(s, st, av_inv_q(spf->time_base))) < 0)
2151                     return ret;
2152
2153                 mxf->timecode_base = (tbc.den + tbc.num/2) / tbc.num;
2154                 mxf->edit_unit_byte_count = (av_get_bits_per_sample(st->codec->codec_id) * st->codec->channels) >> 3;
2155                 sc->index = 2;
2156             } else {
2157                 mxf->slice_count = 1;
2158             }
2159         }
2160
2161         if (!sc->index) {
2162             sc->index = mxf_get_essence_container_ul_index(st->codec->codec_id);
2163             if (sc->index == -1) {
2164                 av_log(s, AV_LOG_ERROR, "track %d: could not find essence container ul, "
2165                        "codec not currently supported in container\n", i);
2166                 return -1;
2167             }
2168         }
2169
2170         sc->codec_ul = &mxf_essence_container_uls[sc->index].codec_ul;
2171
2172         memcpy(sc->track_essence_element_key, mxf_essence_container_uls[sc->index].element_ul, 15);
2173         sc->track_essence_element_key[15] = present[sc->index];
2174         PRINT_KEY(s, "track essence element key", sc->track_essence_element_key);
2175
2176         if (!present[sc->index])
2177             mxf->essence_container_count++;
2178         present[sc->index]++;
2179     }
2180
2181     if (s->oformat == &ff_mxf_d10_muxer || s->oformat == &ff_mxf_opatom_muxer) {
2182         mxf->essence_container_count = 1;
2183     }
2184
2185     if (!(s->flags & AVFMT_FLAG_BITEXACT))
2186         mxf_gen_umid(s);
2187
2188     for (i = 0; i < s->nb_streams; i++) {
2189         MXFStreamContext *sc = s->streams[i]->priv_data;
2190         // update element count
2191         sc->track_essence_element_key[13] = present[sc->index];
2192         if (!memcmp(sc->track_essence_element_key, mxf_essence_container_uls[15].element_ul, 13)) // DV
2193             sc->order = (0x15 << 24) | AV_RB32(sc->track_essence_element_key+13);
2194         else
2195             sc->order = AV_RB32(sc->track_essence_element_key+12);
2196     }
2197
2198     if (t = av_dict_get(s->metadata, "creation_time", NULL, 0))
2199         timestamp = ff_iso8601_to_unix_time(t->value);
2200     if (timestamp)
2201         mxf->timestamp = mxf_parse_timestamp(timestamp);
2202     mxf->duration = -1;
2203
2204     mxf->timecode_track = av_mallocz(sizeof(*mxf->timecode_track));
2205     if (!mxf->timecode_track)
2206         return AVERROR(ENOMEM);
2207     mxf->timecode_track->priv_data = av_mallocz(sizeof(MXFStreamContext));
2208     if (!mxf->timecode_track->priv_data)
2209         return AVERROR(ENOMEM);
2210     mxf->timecode_track->index = -1;
2211
2212     if (!spf)
2213         spf = ff_mxf_get_samples_per_frame(s, (AVRational){ 1, 25 });
2214
2215     if (ff_audio_interleave_init(s, spf->samples_per_frame, mxf->time_base) < 0)
2216         return -1;
2217
2218     return 0;
2219 }
2220
2221 static const uint8_t system_metadata_pack_key[]        = { 0x06,0x0E,0x2B,0x34,0x02,0x05,0x01,0x01,0x0D,0x01,0x03,0x01,0x04,0x01,0x01,0x00 };
2222 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 };
2223
2224 static void mxf_write_system_item(AVFormatContext *s)
2225 {
2226     MXFContext *mxf = s->priv_data;
2227     AVIOContext *pb = s->pb;
2228     unsigned frame;
2229     uint32_t time_code;
2230
2231     frame = mxf->last_indexed_edit_unit + mxf->edit_units_count;
2232
2233     // write system metadata pack
2234     avio_write(pb, system_metadata_pack_key, 16);
2235     klv_encode_ber4_length(pb, 57);
2236     avio_w8(pb, 0x5c); // UL, user date/time stamp, picture and sound item present
2237     avio_w8(pb, 0x04); // content package rate
2238     avio_w8(pb, 0x00); // content package type
2239     avio_wb16(pb, 0x00); // channel handle
2240     avio_wb16(pb, (mxf->tc.start + frame) & 0xFFFF); // continuity count, supposed to overflow
2241     if (mxf->essence_container_count > 1)
2242         avio_write(pb, multiple_desc_ul, 16);
2243     else {
2244         MXFStreamContext *sc = s->streams[0]->priv_data;
2245         avio_write(pb, mxf_essence_container_uls[sc->index].container_ul, 16);
2246     }
2247     avio_w8(pb, 0);
2248     avio_wb64(pb, 0);
2249     avio_wb64(pb, 0); // creation date/time stamp
2250
2251     avio_w8(pb, 0x81); // SMPTE 12M time code
2252     time_code = av_timecode_get_smpte_from_framenum(&mxf->tc, frame);
2253     avio_wb32(pb, time_code);
2254     avio_wb32(pb, 0); // binary group data
2255     avio_wb64(pb, 0);
2256
2257     // write system metadata package set
2258     avio_write(pb, system_metadata_package_set_key, 16);
2259     klv_encode_ber4_length(pb, 35);
2260     avio_w8(pb, 0x83); // UMID
2261     avio_wb16(pb, 0x20);
2262     mxf_write_umid(s, 1);
2263 }
2264
2265 static void mxf_write_d10_video_packet(AVFormatContext *s, AVStream *st, AVPacket *pkt)
2266 {
2267     MXFContext *mxf = s->priv_data;
2268     AVIOContext *pb = s->pb;
2269     MXFStreamContext *sc = st->priv_data;
2270     int packet_size = (uint64_t)sc->video_bit_rate*mxf->time_base.num /
2271         (8*mxf->time_base.den); // frame size
2272     int pad;
2273
2274     packet_size += 16 + 4;
2275     packet_size += klv_fill_size(packet_size);
2276
2277     klv_encode_ber4_length(pb, pkt->size);
2278     avio_write(pb, pkt->data, pkt->size);
2279
2280     // ensure CBR muxing by padding to correct video frame size
2281     pad = packet_size - pkt->size - 16 - 4;
2282     if (pad > 20) {
2283         avio_write(s->pb, klv_fill_key, 16);
2284         pad -= 16 + 4;
2285         klv_encode_ber4_length(s->pb, pad);
2286         ffio_fill(s->pb, 0, pad);
2287         av_assert1(!(avio_tell(s->pb) & (KAG_SIZE-1)));
2288     } else {
2289         av_log(s, AV_LOG_WARNING, "cannot fill d-10 video packet\n");
2290         ffio_fill(s->pb, 0, pad);
2291     }
2292 }
2293
2294 static void mxf_write_d10_audio_packet(AVFormatContext *s, AVStream *st, AVPacket *pkt)
2295 {
2296     MXFContext *mxf = s->priv_data;
2297     AVIOContext *pb = s->pb;
2298     int frame_size = pkt->size / st->codec->block_align;
2299     uint8_t *samples = pkt->data;
2300     uint8_t *end = pkt->data + pkt->size;
2301     int i;
2302
2303     klv_encode_ber4_length(pb, 4 + frame_size*4*8);
2304
2305     avio_w8(pb, (frame_size == 1920 ? 0 : (mxf->edit_units_count-1) % 5 + 1));
2306     avio_wl16(pb, frame_size);
2307     avio_w8(pb, (1<<st->codec->channels)-1);
2308
2309     while (samples < end) {
2310         for (i = 0; i < st->codec->channels; i++) {
2311             uint32_t sample;
2312             if (st->codec->codec_id == AV_CODEC_ID_PCM_S24LE) {
2313                 sample = AV_RL24(samples)<< 4;
2314                 samples += 3;
2315             } else {
2316                 sample = AV_RL16(samples)<<12;
2317                 samples += 2;
2318             }
2319             avio_wl32(pb, sample | i);
2320         }
2321         for (; i < 8; i++)
2322             avio_wl32(pb, i);
2323     }
2324 }
2325
2326 static int mxf_write_opatom_body_partition(AVFormatContext *s)
2327 {
2328     MXFContext *mxf = s->priv_data;
2329     AVIOContext *pb = s->pb;
2330     AVStream *st = s->streams[0];
2331     MXFStreamContext *sc = st->priv_data;
2332     const uint8_t *key = NULL;
2333
2334     int err;
2335
2336     if (!mxf->header_written)
2337         key = body_partition_key;
2338
2339     if ((err = mxf_write_partition(s, 1, 0, key, 0)) < 0)
2340         return err;
2341     mxf_write_klv_fill(s);
2342     avio_write(pb, sc->track_essence_element_key, 16);
2343     klv_encode_ber9_length(pb, mxf->body_offset);
2344     return 0;
2345 }
2346
2347 static int mxf_write_opatom_packet(AVFormatContext *s, AVPacket *pkt, MXFIndexEntry *ie)
2348 {
2349     MXFContext *mxf = s->priv_data;
2350     AVIOContext *pb = s->pb;
2351
2352     int err;
2353
2354     if (!mxf->header_written) {
2355         if ((err = mxf_write_partition(s, 0, 0, header_open_partition_key, 1)) < 0)
2356             return err;
2357         mxf_write_klv_fill(s);
2358
2359         if ((err = mxf_write_opatom_body_partition(s)) < 0)
2360             return err;
2361         mxf->header_written = 1;
2362     }
2363
2364     if (!mxf->edit_unit_byte_count) {
2365         mxf->index_entries[mxf->edit_units_count].offset = mxf->body_offset;
2366         mxf->index_entries[mxf->edit_units_count].flags = ie->flags;
2367         mxf->index_entries[mxf->edit_units_count].temporal_ref = ie->temporal_ref;
2368     }
2369     mxf->edit_units_count++;
2370     avio_write(pb, pkt->data, pkt->size);
2371     mxf->body_offset += pkt->size;
2372     avio_flush(pb);
2373
2374     return 0;
2375 }
2376
2377 static int mxf_write_packet(AVFormatContext *s, AVPacket *pkt)
2378 {
2379     MXFContext *mxf = s->priv_data;
2380     AVIOContext *pb = s->pb;
2381     AVStream *st = s->streams[pkt->stream_index];
2382     MXFStreamContext *sc = st->priv_data;
2383     MXFIndexEntry ie = {0};
2384     int err;
2385
2386     if (!mxf->edit_unit_byte_count && !(mxf->edit_units_count % EDIT_UNITS_PER_BODY)) {
2387         if ((err = av_reallocp_array(&mxf->index_entries, mxf->edit_units_count
2388                                      + EDIT_UNITS_PER_BODY, sizeof(*mxf->index_entries))) < 0) {
2389             mxf->edit_units_count = 0;
2390             av_log(s, AV_LOG_ERROR, "could not allocate index entries\n");
2391             return err;
2392         }
2393     }
2394
2395     if (st->codec->codec_id == AV_CODEC_ID_MPEG2VIDEO) {
2396         if (!mxf_parse_mpeg2_frame(s, st, pkt, &ie)) {
2397             av_log(s, AV_LOG_ERROR, "could not get mpeg2 profile and level\n");
2398             return -1;
2399         }
2400     } else if (st->codec->codec_id == AV_CODEC_ID_DNXHD) {
2401         if (!mxf_parse_dnxhd_frame(s, st, pkt)) {
2402             av_log(s, AV_LOG_ERROR, "could not get dnxhd profile\n");
2403             return -1;
2404         }
2405     } else if (st->codec->codec_id == AV_CODEC_ID_DVVIDEO) {
2406         if (!mxf_parse_dv_frame(s, st, pkt)) {
2407             av_log(s, AV_LOG_ERROR, "could not get dv profile\n");
2408             return -1;
2409         }
2410     } else if (st->codec->codec_id == AV_CODEC_ID_H264) {
2411         if (!mxf_parse_h264_frame(s, st, pkt, &ie)) {
2412             av_log(s, AV_LOG_ERROR, "could not get h264 profile\n");
2413             return -1;
2414         }
2415     }
2416
2417     if (s->oformat == &ff_mxf_opatom_muxer)
2418         return mxf_write_opatom_packet(s, pkt, &ie);
2419
2420     if (!mxf->header_written) {
2421         if (mxf->edit_unit_byte_count) {
2422             if ((err = mxf_write_partition(s, 1, 2, header_open_partition_key, 1)) < 0)
2423                 return err;
2424             mxf_write_klv_fill(s);
2425             mxf_write_index_table_segment(s);
2426         } else {
2427             if ((err = mxf_write_partition(s, 0, 0, header_open_partition_key, 1)) < 0)
2428                 return err;
2429         }
2430         mxf->header_written = 1;
2431     }
2432
2433     if (st->index == 0) {
2434         if (!mxf->edit_unit_byte_count &&
2435             (!mxf->edit_units_count || mxf->edit_units_count > EDIT_UNITS_PER_BODY) &&
2436             !(ie.flags & 0x33)) { // I frame, Gop start
2437             mxf_write_klv_fill(s);
2438             if ((err = mxf_write_partition(s, 1, 2, body_partition_key, 0)) < 0)
2439                 return err;
2440             mxf_write_klv_fill(s);
2441             mxf_write_index_table_segment(s);
2442         }
2443
2444         mxf_write_klv_fill(s);
2445         mxf_write_system_item(s);
2446
2447         if (!mxf->edit_unit_byte_count) {
2448             mxf->index_entries[mxf->edit_units_count].offset = mxf->body_offset;
2449             mxf->index_entries[mxf->edit_units_count].flags = ie.flags;
2450             mxf->index_entries[mxf->edit_units_count].temporal_ref = ie.temporal_ref;
2451             mxf->body_offset += KAG_SIZE; // size of system element
2452         }
2453         mxf->edit_units_count++;
2454     } else if (!mxf->edit_unit_byte_count && st->index == 1) {
2455         mxf->index_entries[mxf->edit_units_count-1].slice_offset =
2456             mxf->body_offset - mxf->index_entries[mxf->edit_units_count-1].offset;
2457     }
2458
2459     mxf_write_klv_fill(s);
2460     avio_write(pb, sc->track_essence_element_key, 16); // write key
2461     if (s->oformat == &ff_mxf_d10_muxer) {
2462         if (st->codec->codec_type == AVMEDIA_TYPE_VIDEO)
2463             mxf_write_d10_video_packet(s, st, pkt);
2464         else
2465             mxf_write_d10_audio_packet(s, st, pkt);
2466     } else {
2467         klv_encode_ber4_length(pb, pkt->size); // write length
2468         avio_write(pb, pkt->data, pkt->size);
2469         mxf->body_offset += 16+4+pkt->size + klv_fill_size(16+4+pkt->size);
2470     }
2471
2472     avio_flush(pb);
2473
2474     return 0;
2475 }
2476
2477 static void mxf_write_random_index_pack(AVFormatContext *s)
2478 {
2479     MXFContext *mxf = s->priv_data;
2480     AVIOContext *pb = s->pb;
2481     uint64_t pos = avio_tell(pb);
2482     int i;
2483
2484     avio_write(pb, random_index_pack_key, 16);
2485     klv_encode_ber_length(pb, 28 + 12LL*mxf->body_partitions_count);
2486
2487     if (mxf->edit_unit_byte_count && s->oformat != &ff_mxf_opatom_muxer)
2488         avio_wb32(pb, 1); // BodySID of header partition
2489     else
2490         avio_wb32(pb, 0);
2491     avio_wb64(pb, 0); // offset of header partition
2492
2493     for (i = 0; i < mxf->body_partitions_count; i++) {
2494         avio_wb32(pb, 1); // BodySID
2495         avio_wb64(pb, mxf->body_partition_offset[i]);
2496     }
2497
2498     avio_wb32(pb, 0); // BodySID of footer partition
2499     avio_wb64(pb, mxf->footer_partition_offset);
2500
2501     avio_wb32(pb, avio_tell(pb) - pos + 4);
2502 }
2503
2504 static int mxf_write_footer(AVFormatContext *s)
2505 {
2506     MXFContext *mxf = s->priv_data;
2507     AVIOContext *pb = s->pb;
2508     int err = 0;
2509
2510     if (!mxf->header_written ||
2511         (s->oformat == &ff_mxf_opatom_muxer && !mxf->body_partition_offset)) {
2512         /* reason could be invalid options/not supported codec/out of memory */
2513         err = AVERROR_UNKNOWN;
2514         goto end;
2515     }
2516
2517     mxf->duration = mxf->last_indexed_edit_unit + mxf->edit_units_count;
2518
2519     mxf_write_klv_fill(s);
2520     mxf->footer_partition_offset = avio_tell(pb);
2521     if (mxf->edit_unit_byte_count && s->oformat != &ff_mxf_opatom_muxer) { // no need to repeat index
2522         if ((err = mxf_write_partition(s, 0, 0, footer_partition_key, 0)) < 0)
2523             goto end;
2524     } else {
2525         if ((err = mxf_write_partition(s, 0, 2, footer_partition_key, 0)) < 0)
2526             goto end;
2527         mxf_write_klv_fill(s);
2528         mxf_write_index_table_segment(s);
2529     }
2530
2531     mxf_write_klv_fill(s);
2532     mxf_write_random_index_pack(s);
2533
2534     if (s->pb->seekable) {
2535         if (s->oformat == &ff_mxf_opatom_muxer){
2536             /* rewrite body partition to update lengths */
2537             avio_seek(pb, mxf->body_partition_offset[0], SEEK_SET);
2538             if ((err = mxf_write_opatom_body_partition(s)) < 0)
2539                 goto end;
2540         }
2541
2542         avio_seek(pb, 0, SEEK_SET);
2543         if (mxf->edit_unit_byte_count && s->oformat != &ff_mxf_opatom_muxer) {
2544             if ((err = mxf_write_partition(s, 1, 2, header_closed_partition_key, 1)) < 0)
2545                 goto end;
2546             mxf_write_klv_fill(s);
2547             mxf_write_index_table_segment(s);
2548         } else {
2549             if ((err = mxf_write_partition(s, 0, 0, header_closed_partition_key, 1)) < 0)
2550                 goto end;
2551         }
2552     }
2553
2554 end:
2555     ff_audio_interleave_close(s);
2556
2557     av_freep(&mxf->index_entries);
2558     av_freep(&mxf->body_partition_offset);
2559     av_freep(&mxf->timecode_track->priv_data);
2560     av_freep(&mxf->timecode_track);
2561
2562     mxf_free(s);
2563
2564     return err < 0 ? err : 0;
2565 }
2566
2567 static int mxf_interleave_get_packet(AVFormatContext *s, AVPacket *out, AVPacket *pkt, int flush)
2568 {
2569     int i, stream_count = 0;
2570
2571     for (i = 0; i < s->nb_streams; i++)
2572         stream_count += !!s->streams[i]->last_in_packet_buffer;
2573
2574     if (stream_count && (s->nb_streams == stream_count || flush)) {
2575         AVPacketList *pktl = s->internal->packet_buffer;
2576         if (s->nb_streams != stream_count) {
2577             AVPacketList *last = NULL;
2578             // find last packet in edit unit
2579             while (pktl) {
2580                 if (!stream_count || pktl->pkt.stream_index == 0)
2581                     break;
2582                 last = pktl;
2583                 pktl = pktl->next;
2584                 stream_count--;
2585             }
2586             // purge packet queue
2587             while (pktl) {
2588                 AVPacketList *next = pktl->next;
2589
2590                 if(s->streams[pktl->pkt.stream_index]->last_in_packet_buffer == pktl)
2591                     s->streams[pktl->pkt.stream_index]->last_in_packet_buffer= NULL;
2592                 av_free_packet(&pktl->pkt);
2593                 av_freep(&pktl);
2594                 pktl = next;
2595             }
2596             if (last)
2597                 last->next = NULL;
2598             else {
2599                 s->internal->packet_buffer = NULL;
2600                 s->internal->packet_buffer_end= NULL;
2601                 goto out;
2602             }
2603             pktl = s->internal->packet_buffer;
2604         }
2605
2606         *out = pktl->pkt;
2607         av_log(s, AV_LOG_TRACE, "out st:%d dts:%"PRId64"\n", (*out).stream_index, (*out).dts);
2608         s->internal->packet_buffer = pktl->next;
2609         if(s->streams[pktl->pkt.stream_index]->last_in_packet_buffer == pktl)
2610             s->streams[pktl->pkt.stream_index]->last_in_packet_buffer= NULL;
2611         if(!s->internal->packet_buffer)
2612             s->internal->packet_buffer_end= NULL;
2613         av_freep(&pktl);
2614         return 1;
2615     } else {
2616     out:
2617         av_init_packet(out);
2618         return 0;
2619     }
2620 }
2621
2622 static int mxf_compare_timestamps(AVFormatContext *s, AVPacket *next, AVPacket *pkt)
2623 {
2624     MXFStreamContext *sc  = s->streams[pkt ->stream_index]->priv_data;
2625     MXFStreamContext *sc2 = s->streams[next->stream_index]->priv_data;
2626
2627     return next->dts > pkt->dts ||
2628         (next->dts == pkt->dts && sc->order < sc2->order);
2629 }
2630
2631 static int mxf_interleave(AVFormatContext *s, AVPacket *out, AVPacket *pkt, int flush)
2632 {
2633     return ff_audio_rechunk_interleave(s, out, pkt, flush,
2634                                mxf_interleave_get_packet, mxf_compare_timestamps);
2635 }
2636
2637 #define MXF_COMMON_OPTIONS \
2638     { "signal_standard", "Force/set Sigal Standard",\
2639       offsetof(MXFContext, signal_standard), AV_OPT_TYPE_INT, {.i64 = -1}, -1, 7, AV_OPT_FLAG_ENCODING_PARAM, "signal_standard"},\
2640     { "bt601", "ITU-R BT.601 and BT.656, also SMPTE 125M (525 and 625 line interlaced)",\
2641       0, AV_OPT_TYPE_CONST, {.i64 = 1}, -1, 7, AV_OPT_FLAG_ENCODING_PARAM, "signal_standard"},\
2642     { "bt1358", "ITU-R BT.1358 and ITU-R BT.799-3, also SMPTE 293M (525 and 625 line progressive)",\
2643       0, AV_OPT_TYPE_CONST, {.i64 = 2}, -1, 7, AV_OPT_FLAG_ENCODING_PARAM, "signal_standard"},\
2644     { "smpte347m", "SMPTE 347M (540 Mbps mappings)",\
2645       0, AV_OPT_TYPE_CONST, {.i64 = 3}, -1, 7, AV_OPT_FLAG_ENCODING_PARAM, "signal_standard"},\
2646     { "smpte274m", "SMPTE 274M (1125 line)",\
2647       0, AV_OPT_TYPE_CONST, {.i64 = 4}, -1, 7, AV_OPT_FLAG_ENCODING_PARAM, "signal_standard"},\
2648     { "smpte296m", "SMPTE 296M (750 line progressive)",\
2649       0, AV_OPT_TYPE_CONST, {.i64 = 5}, -1, 7, AV_OPT_FLAG_ENCODING_PARAM, "signal_standard"},\
2650     { "smpte349m", "SMPTE 349M (1485 Mbps mappings)",\
2651       0, AV_OPT_TYPE_CONST, {.i64 = 6}, -1, 7, AV_OPT_FLAG_ENCODING_PARAM, "signal_standard"},\
2652     { "smpte428", "SMPTE 428-1 DCDM",\
2653       0, AV_OPT_TYPE_CONST, {.i64 = 7}, -1, 7, AV_OPT_FLAG_ENCODING_PARAM, "signal_standard"},
2654
2655
2656
2657 static const AVOption mxf_options[] = {
2658     MXF_COMMON_OPTIONS
2659     { NULL },
2660 };
2661
2662 static const AVClass mxf_muxer_class = {
2663     .class_name     = "MXF muxer",
2664     .item_name      = av_default_item_name,
2665     .option         = mxf_options,
2666     .version        = LIBAVUTIL_VERSION_INT,
2667 };
2668
2669 static const AVOption d10_options[] = {
2670     { "d10_channelcount", "Force/set channelcount in generic sound essence descriptor",
2671       offsetof(MXFContext, channel_count), AV_OPT_TYPE_INT, {.i64 = -1}, -1, 8, AV_OPT_FLAG_ENCODING_PARAM},
2672     MXF_COMMON_OPTIONS
2673     { NULL },
2674 };
2675
2676 static const AVClass mxf_d10_muxer_class = {
2677     .class_name     = "MXF-D10 muxer",
2678     .item_name      = av_default_item_name,
2679     .option         = d10_options,
2680     .version        = LIBAVUTIL_VERSION_INT,
2681 };
2682
2683 static const AVOption opatom_options[] = {
2684     { "mxf_audio_edit_rate", "Audio edit rate for timecode",
2685         offsetof(MXFContext, audio_edit_rate), AV_OPT_TYPE_RATIONAL, {.dbl=25}, 0, INT_MAX, AV_OPT_FLAG_ENCODING_PARAM },
2686     MXF_COMMON_OPTIONS
2687     { NULL },
2688 };
2689
2690 static const AVClass mxf_opatom_muxer_class = {
2691     .class_name     = "MXF-OPAtom muxer",
2692     .item_name      = av_default_item_name,
2693     .option         = opatom_options,
2694     .version        = LIBAVUTIL_VERSION_INT,
2695 };
2696
2697 AVOutputFormat ff_mxf_muxer = {
2698     .name              = "mxf",
2699     .long_name         = NULL_IF_CONFIG_SMALL("MXF (Material eXchange Format)"),
2700     .mime_type         = "application/mxf",
2701     .extensions        = "mxf",
2702     .priv_data_size    = sizeof(MXFContext),
2703     .audio_codec       = AV_CODEC_ID_PCM_S16LE,
2704     .video_codec       = AV_CODEC_ID_MPEG2VIDEO,
2705     .write_header      = mxf_write_header,
2706     .write_packet      = mxf_write_packet,
2707     .write_trailer     = mxf_write_footer,
2708     .flags             = AVFMT_NOTIMESTAMPS,
2709     .interleave_packet = mxf_interleave,
2710     .priv_class        = &mxf_muxer_class,
2711 };
2712
2713 AVOutputFormat ff_mxf_d10_muxer = {
2714     .name              = "mxf_d10",
2715     .long_name         = NULL_IF_CONFIG_SMALL("MXF (Material eXchange Format) D-10 Mapping"),
2716     .mime_type         = "application/mxf",
2717     .priv_data_size    = sizeof(MXFContext),
2718     .audio_codec       = AV_CODEC_ID_PCM_S16LE,
2719     .video_codec       = AV_CODEC_ID_MPEG2VIDEO,
2720     .write_header      = mxf_write_header,
2721     .write_packet      = mxf_write_packet,
2722     .write_trailer     = mxf_write_footer,
2723     .flags             = AVFMT_NOTIMESTAMPS,
2724     .interleave_packet = mxf_interleave,
2725     .priv_class        = &mxf_d10_muxer_class,
2726 };
2727
2728 AVOutputFormat ff_mxf_opatom_muxer = {
2729     .name              = "mxf_opatom",
2730     .long_name         = NULL_IF_CONFIG_SMALL("MXF (Material eXchange Format) Operational Pattern Atom"),
2731     .mime_type         = "application/mxf",
2732     .extensions        = "mxf",
2733     .priv_data_size    = sizeof(MXFContext),
2734     .audio_codec       = AV_CODEC_ID_PCM_S16LE,
2735     .video_codec       = AV_CODEC_ID_DNXHD,
2736     .write_header      = mxf_write_header,
2737     .write_packet      = mxf_write_packet,
2738     .write_trailer     = mxf_write_footer,
2739     .flags             = AVFMT_NOTIMESTAMPS,
2740     .interleave_packet = mxf_interleave,
2741     .priv_class        = &mxf_opatom_muxer_class,
2742 };