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  * References
  25  * SMPTE 336M KLV Data Encoding Protocol Using Key-Length-Value
  26  * SMPTE 377M MXF File Format Specifications
  27  * SMPTE 379M MXF Generic Container
  28  * SMPTE 381M Mapping MPEG Streams into the MXF Generic Container
  29  * SMPTE RP210: SMPTE Metadata Dictionary
  30  * SMPTE RP224: Registry of SMPTE Universal Labels
  31  */
  32
  33 //#define DEBUG
  34
  35 #include <inttypes.h>
  36 #include <math.h>
  37 #include <time.h>
  38
  39 #include "libavutil/opt.h"
  40 #include "libavutil/random_seed.h"
  41 #include "libavutil/timecode.h"
  42 #include "libavutil/avassert.h"
  43 #include "libavcodec/bytestream.h"
  44 #include "libavcodec/dnxhddata.h"
  45 #include "audiointerleave.h"
  46 #include "avformat.h"
  47 #include "internal.h"
  48 #include "mxf.h"
  49 #include "config.h"
  50
  51 extern AVOutputFormat ff_mxf_d10_muxer;
  52
  53 #define EDIT_UNITS_PER_BODY 250
  54 #define KAG_SIZE 512
  55
  56 typedef struct {
  57     int local_tag;
  58     UID uid;
  59 } MXFLocalTagPair;
  60
  61 typedef struct {
  62     uint8_t flags;
  63     uint64_t offset;
  64     unsigned slice_offset; ///< offset of audio slice
  65     uint16_t temporal_ref;
  66 } MXFIndexEntry;
  67
  68 typedef struct {
  69     AudioInterleaveContext aic;
  70     UID track_essence_element_key;
  71     int index;               ///< index in mxf_essence_container_uls table
  72     const UID *codec_ul;
  73     int order;               ///< interleaving order if dts are equal
  74     int interlaced;          ///< whether picture is interlaced
  75     int field_dominance;     ///< tff=1, bff=2
  76     int component_depth;
  77     int temporal_reordering;
  78     AVRational aspect_ratio; ///< display aspect ratio
  79     int closed_gop;          ///< gop is closed, used in mpeg-2 frame parsing
  80 } MXFStreamContext;
  81
  82 typedef struct {
  83     UID container_ul;
  84     UID element_ul;
  85     UID codec_ul;
  86     void (*write_desc)(AVFormatContext *, AVStream *);
  87 } MXFContainerEssenceEntry;
  88
  89 static const struct {
  90     enum AVCodecID id;
  91     int index;
  92 } mxf_essence_mappings[] = {
  93     { AV_CODEC_ID_MPEG2VIDEO, 0 },
  94     { AV_CODEC_ID_PCM_S24LE,  1 },
  95     { AV_CODEC_ID_PCM_S16LE,  1 },
  96     { AV_CODEC_ID_DVVIDEO,   15 },
  97     { AV_CODEC_ID_DNXHD,     24 },
  98     { AV_CODEC_ID_NONE }
  99 };
 100
 101 static void mxf_write_wav_desc(AVFormatContext *s, AVStream *st);
 102 static void mxf_write_aes3_desc(AVFormatContext *s, AVStream *st);
 103 static void mxf_write_mpegvideo_desc(AVFormatContext *s, AVStream *st);
 104 static void mxf_write_cdci_desc(AVFormatContext *s, AVStream *st);
 105 static void mxf_write_generic_sound_desc(AVFormatContext *s, AVStream *st);
 106
 107 static const MXFContainerEssenceEntry mxf_essence_container_uls[] = {
 108     { { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x02,0x0D,0x01,0x03,0x01,0x02,0x04,0x60,0x01 },
 109       { 0x06,0x0E,0x2B,0x34,0x01,0x02,0x01,0x01,0x0D,0x01,0x03,0x01,0x15,0x01,0x05,0x00 },
 110       { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x03,0x04,0x01,0x02,0x02,0x01,0x00,0x00,0x00 },
 111       mxf_write_mpegvideo_desc },
 112     { { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x0D,0x01,0x03,0x01,0x02,0x06,0x03,0x00 },
 113       { 0x06,0x0E,0x2B,0x34,0x01,0x02,0x01,0x01,0x0D,0x01,0x03,0x01,0x16,0x01,0x03,0x00 },
 114       { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x04,0x02,0x02,0x01,0x00,0x00,0x00,0x00 },
 115       mxf_write_aes3_desc },
 116     { { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x0D,0x01,0x03,0x01,0x02,0x06,0x01,0x00 },
 117       { 0x06,0x0E,0x2B,0x34,0x01,0x02,0x01,0x01,0x0D,0x01,0x03,0x01,0x16,0x01,0x01,0x00 },
 118       { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x04,0x02,0x02,0x01,0x00,0x00,0x00,0x00 },
 119       mxf_write_wav_desc },
 120     // D-10 625/50 PAL 50mb/s
 121     { { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x0D,0x01,0x03,0x01,0x02,0x01,0x01,0x01 },
 122       { 0x06,0x0E,0x2B,0x34,0x01,0x02,0x01,0x01,0x0D,0x01,0x03,0x01,0x05,0x01,0x01,0x00 },
 123       { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x04,0x01,0x02,0x02,0x01,0x02,0x01,0x01 },
 124       mxf_write_cdci_desc },
 125     { { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x0D,0x01,0x03,0x01,0x02,0x01,0x01,0x01 },
 126       { 0x06,0x0E,0x2B,0x34,0x01,0x02,0x01,0x01,0x0D,0x01,0x03,0x01,0x06,0x01,0x10,0x00 },
 127       { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x04,0x02,0x02,0x01,0x00,0x00,0x00,0x00 },
 128       mxf_write_generic_sound_desc },
 129     // D-10 525/60 NTSC 50mb/s
 130     { { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x0D,0x01,0x03,0x01,0x02,0x01,0x02,0x01 },
 131       { 0x06,0x0E,0x2B,0x34,0x01,0x02,0x01,0x01,0x0D,0x01,0x03,0x01,0x05,0x01,0x01,0x00 },
 132       { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x04,0x01,0x02,0x02,0x01,0x02,0x01,0x02 },
 133       mxf_write_cdci_desc },
 134     { { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x0D,0x01,0x03,0x01,0x02,0x01,0x02,0x01 },
 135       { 0x06,0x0E,0x2B,0x34,0x01,0x02,0x01,0x01,0x0D,0x01,0x03,0x01,0x06,0x01,0x10,0x00 },
 136       { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x04,0x02,0x02,0x01,0x00,0x00,0x00,0x00 },
 137       mxf_write_generic_sound_desc },
 138     // D-10 625/50 PAL 40mb/s
 139     { { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x0D,0x01,0x03,0x01,0x02,0x01,0x03,0x01 },
 140       { 0x06,0x0E,0x2B,0x34,0x01,0x02,0x01,0x01,0x0D,0x01,0x03,0x01,0x05,0x01,0x01,0x00 },
 141       { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x04,0x01,0x02,0x02,0x01,0x02,0x01,0x03 },
 142       mxf_write_cdci_desc },
 143     { { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x0D,0x01,0x03,0x01,0x02,0x01,0x03,0x01 },
 144       { 0x06,0x0E,0x2B,0x34,0x01,0x02,0x01,0x01,0x0D,0x01,0x03,0x01,0x06,0x01,0x10,0x00 },
 145       { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x04,0x02,0x02,0x01,0x00,0x00,0x00,0x00 },
 146       mxf_write_generic_sound_desc },
 147     // D-10 525/60 NTSC 40mb/s
 148     { { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x0D,0x01,0x03,0x01,0x02,0x01,0x04,0x01 },
 149       { 0x06,0x0E,0x2B,0x34,0x01,0x02,0x01,0x01,0x0D,0x01,0x03,0x01,0x05,0x01,0x01,0x00 },
 150       { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x04,0x01,0x02,0x02,0x01,0x02,0x01,0x04 },
 151       mxf_write_cdci_desc },
 152     { { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x0D,0x01,0x03,0x01,0x02,0x01,0x04,0x01 },
 153       { 0x06,0x0E,0x2B,0x34,0x01,0x02,0x01,0x01,0x0D,0x01,0x03,0x01,0x06,0x01,0x10,0x00 },
 154       { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x04,0x02,0x02,0x01,0x00,0x00,0x00,0x00 },
 155       mxf_write_generic_sound_desc },
 156     // D-10 625/50 PAL 30mb/s
 157     { { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x0D,0x01,0x03,0x01,0x02,0x01,0x05,0x01 },
 158       { 0x06,0x0E,0x2B,0x34,0x01,0x02,0x01,0x01,0x0D,0x01,0x03,0x01,0x05,0x01,0x01,0x00 },
 159       { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x04,0x01,0x02,0x02,0x01,0x02,0x01,0x05 },
 160       mxf_write_cdci_desc },
 161     { { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x0D,0x01,0x03,0x01,0x02,0x01,0x05,0x01 },
 162       { 0x06,0x0E,0x2B,0x34,0x01,0x02,0x01,0x01,0x0D,0x01,0x03,0x01,0x06,0x01,0x10,0x00 },
 163       { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x04,0x02,0x02,0x01,0x00,0x00,0x00,0x00 },
 164       mxf_write_generic_sound_desc },
 165     // D-10 525/60 NTSC 30mb/s
 166     { { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x0D,0x01,0x03,0x01,0x02,0x01,0x06,0x01 },
 167       { 0x06,0x0E,0x2B,0x34,0x01,0x02,0x01,0x01,0x0D,0x01,0x03,0x01,0x05,0x01,0x01,0x00 },
 168       { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x04,0x01,0x02,0x02,0x01,0x02,0x01,0x06 },
 169       mxf_write_cdci_desc },
 170     { { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x0D,0x01,0x03,0x01,0x02,0x01,0x06,0x01 },
 171       { 0x06,0x0E,0x2B,0x34,0x01,0x02,0x01,0x01,0x0D,0x01,0x03,0x01,0x06,0x01,0x10,0x00 },
 172       { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x04,0x02,0x02,0x01,0x00,0x00,0x00,0x00 },
 173       mxf_write_generic_sound_desc },
 174     // DV Unknown
 175     { { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x0D,0x01,0x03,0x01,0x02,0x02,0x7F,0x01 },
 176       { 0x06,0x0E,0x2B,0x34,0x01,0x02,0x01,0x01,0x0D,0x01,0x03,0x01,0x18,0x01,0x01,0x00 },
 177       { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x04,0x01,0x02,0x02,0x02,0x00,0x00,0x00 },
 178       mxf_write_cdci_desc },
 179     // DV25 525/60
 180     { { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x0D,0x01,0x03,0x01,0x02,0x02,0x40,0x01 },
 181       { 0x06,0x0E,0x2B,0x34,0x01,0x02,0x01,0x01,0x0D,0x01,0x03,0x01,0x18,0x01,0x01,0x00 },
 182       { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x04,0x01,0x02,0x02,0x02,0x02,0x01,0x00 },
 183       mxf_write_cdci_desc },
 184     // DV25 625/50
 185     { { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x0D,0x01,0x03,0x01,0x02,0x02,0x41,0x01 },
 186       { 0x06,0x0E,0x2B,0x34,0x01,0x02,0x01,0x01,0x0D,0x01,0x03,0x01,0x18,0x01,0x01,0x00 },
 187       { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x04,0x01,0x02,0x02,0x02,0x02,0x02,0x00 },
 188       mxf_write_cdci_desc },
 189     // DV50 525/60
 190     { { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x0D,0x01,0x03,0x01,0x02,0x02,0x50,0x01 },
 191       { 0x06,0x0E,0x2B,0x34,0x01,0x02,0x01,0x01,0x0D,0x01,0x03,0x01,0x18,0x01,0x01,0x00 },
 192       { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x04,0x01,0x02,0x02,0x02,0x02,0x03,0x00 },
 193       mxf_write_cdci_desc },
 194     // DV50 625/50
 195     { { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x0D,0x01,0x03,0x01,0x02,0x02,0x51,0x01 },
 196       { 0x06,0x0E,0x2B,0x34,0x01,0x02,0x01,0x01,0x0D,0x01,0x03,0x01,0x18,0x01,0x01,0x00 },
 197       { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x04,0x01,0x02,0x02,0x02,0x02,0x04,0x00 },
 198       mxf_write_cdci_desc },
 199     // DV100 1080/60
 200     { { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x0D,0x01,0x03,0x01,0x02,0x02,0x60,0x01 },
 201       { 0x06,0x0E,0x2B,0x34,0x01,0x02,0x01,0x01,0x0D,0x01,0x03,0x01,0x18,0x01,0x01,0x00 },
 202       { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x04,0x01,0x02,0x02,0x02,0x02,0x05,0x00 },
 203       mxf_write_cdci_desc },
 204     // DV100 1080/50
 205     { { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x0D,0x01,0x03,0x01,0x02,0x02,0x61,0x01 },
 206       { 0x06,0x0E,0x2B,0x34,0x01,0x02,0x01,0x01,0x0D,0x01,0x03,0x01,0x18,0x01,0x01,0x00 },
 207       { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x04,0x01,0x02,0x02,0x02,0x02,0x06,0x00 },
 208       mxf_write_cdci_desc },
 209     // DV100 720/60
 210     { { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x0D,0x01,0x03,0x01,0x02,0x02,0x62,0x01 },
 211       { 0x06,0x0E,0x2B,0x34,0x01,0x02,0x01,0x01,0x0D,0x01,0x03,0x01,0x18,0x01,0x01,0x00 },
 212       { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x04,0x01,0x02,0x02,0x02,0x02,0x07,0x00 },
 213       mxf_write_cdci_desc },
 214     // DV100 720/50
 215     { { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x0D,0x01,0x03,0x01,0x02,0x02,0x63,0x01 },
 216       { 0x06,0x0E,0x2B,0x34,0x01,0x02,0x01,0x01,0x0D,0x01,0x03,0x01,0x18,0x01,0x01,0x00 },
 217       { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x04,0x01,0x02,0x02,0x02,0x02,0x08,0x00 },
 218       mxf_write_cdci_desc },
 219     // DNxHD 1080p 10bit high
 220     { { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x0D,0x01,0x03,0x01,0x02,0x11,0x01,0x00 },
 221       { 0x06,0x0E,0x2B,0x34,0x01,0x02,0x01,0x01,0x0D,0x01,0x03,0x01,0x15,0x01,0x05,0x00 },
 222       { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x0A,0x04,0x01,0x02,0x02,0x71,0x01,0x00,0x00 },
 223       mxf_write_cdci_desc },
 224     // DNxHD 1080p 8bit medium
 225     { { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x0D,0x01,0x03,0x01,0x02,0x11,0x01,0x00 },
 226       { 0x06,0x0E,0x2B,0x34,0x01,0x02,0x01,0x01,0x0D,0x01,0x03,0x01,0x15,0x01,0x05,0x00 },
 227       { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x0A,0x04,0x01,0x02,0x02,0x71,0x03,0x00,0x00 },
 228       mxf_write_cdci_desc },
 229     // DNxHD 1080p 8bit high
 230     { { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x0D,0x01,0x03,0x01,0x02,0x11,0x01,0x00 },
 231       { 0x06,0x0E,0x2B,0x34,0x01,0x02,0x01,0x01,0x0D,0x01,0x03,0x01,0x15,0x01,0x05,0x00 },
 232       { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x0A,0x04,0x01,0x02,0x02,0x71,0x04,0x00,0x00 },
 233       mxf_write_cdci_desc },
 234     // DNxHD 1080i 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,0x04,0x01,0x02,0x02,0x71,0x07,0x00,0x00 },
 238       mxf_write_cdci_desc },
 239     // DNxHD 1080i 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,0x04,0x01,0x02,0x02,0x71,0x08,0x00,0x00 },
 243       mxf_write_cdci_desc },
 244     // DNxHD 1080i 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,0x04,0x01,0x02,0x02,0x71,0x09,0x00,0x00 },
 248       mxf_write_cdci_desc },
 249     // DNxHD 720p 10bit
 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,0x04,0x01,0x02,0x02,0x71,0x10,0x00,0x00 },
 253       mxf_write_cdci_desc },
 254     // DNxHD 720p 8bit high
 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,0x04,0x01,0x02,0x02,0x71,0x11,0x00,0x00 },
 258       mxf_write_cdci_desc },
 259     // DNxHD 720p 8bit medium
 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,0x04,0x01,0x02,0x02,0x71,0x12,0x00,0x00 },
 263       mxf_write_cdci_desc },
 264     // DNxHD 720p 8bit low
 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,0x04,0x01,0x02,0x02,0x71,0x13,0x00,0x00 },
 268       mxf_write_cdci_desc },
 269     { { 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00 },
 270       { 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00 },
 271       { 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00 },
 272       NULL },
 273 };
 274
 275 typedef struct MXFContext {
 276     AVClass *av_class;
 277     int64_t footer_partition_offset;
 278     int essence_container_count;
 279     AVRational time_base;
 280     int header_written;
 281     MXFIndexEntry *index_entries;
 282     unsigned edit_units_count;
 283     uint64_t timestamp;   ///< timestamp, as year(16),month(8),day(8),hour(8),minutes(8),msec/4(8)
 284     uint8_t slice_count;  ///< index slice count minus 1 (1 if no audio, 0 otherwise)
 285     int last_indexed_edit_unit;
 286     uint64_t *body_partition_offset;
 287     unsigned body_partitions_count;
 288     int last_key_index;  ///< index of last key frame
 289     uint64_t duration;
 290     AVTimecode tc;       ///< timecode context
 291     AVStream *timecode_track;
 292     int timecode_base;       ///< rounded time code base (25 or 30)
 293     int edit_unit_byte_count; ///< fixed edit unit byte count
 294     uint64_t body_offset;
 295     uint32_t instance_number;
 296     uint8_t umid[16];        ///< unique material identifier
 297 } MXFContext;
 298
 299 static const uint8_t uuid_base[]            = { 0xAD,0xAB,0x44,0x24,0x2f,0x25,0x4d,0xc7,0x92,0xff,0x29,0xbd };
 300 static const uint8_t umid_ul[]              = { 0x06,0x0A,0x2B,0x34,0x01,0x01,0x01,0x05,0x01,0x01,0x0D,0x00,0x13 };
 301
 302 /**
 303  * complete key for operation pattern, partitions, and primer pack
 304  */
 305 static const uint8_t op1a_ul[]                     = { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x0D,0x01,0x02,0x01,0x01,0x01,0x09,0x00 };
 306 static const uint8_t footer_partition_key[]        = { 0x06,0x0E,0x2B,0x34,0x02,0x05,0x01,0x01,0x0D,0x01,0x02,0x01,0x01,0x04,0x04,0x00 }; // ClosedComplete
 307 static const uint8_t primer_pack_key[]             = { 0x06,0x0E,0x2B,0x34,0x02,0x05,0x01,0x01,0x0D,0x01,0x02,0x01,0x01,0x05,0x01,0x00 };
 308 static const uint8_t index_table_segment_key[]     = { 0x06,0x0E,0x2B,0x34,0x02,0x53,0x01,0x01,0x0d,0x01,0x02,0x01,0x01,0x10,0x01,0x00 };
 309 static const uint8_t random_index_pack_key[]       = { 0x06,0x0E,0x2B,0x34,0x02,0x05,0x01,0x01,0x0D,0x01,0x02,0x01,0x01,0x11,0x01,0x00 };
 310 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
 311 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
 312 static const uint8_t klv_fill_key[]                = { 0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x01,0x03,0x01,0x02,0x10,0x01,0x00,0x00,0x00 };
 313 static const uint8_t body_partition_key[]          = { 0x06,0x0E,0x2B,0x34,0x02,0x05,0x01,0x01,0x0D,0x01,0x02,0x01,0x01,0x03,0x04,0x00 }; // ClosedComplete
 314
 315 /**
 316  * partial key for header metadata
 317  */
 318 static const uint8_t header_metadata_key[]  = { 0x06,0x0E,0x2B,0x34,0x02,0x53,0x01,0x01,0x0D,0x01,0x01,0x01,0x01 };
 319 static const uint8_t multiple_desc_ul[]     = { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x03,0x0D,0x01,0x03,0x01,0x02,0x7F,0x01,0x00 };
 320
 321 /**
 322  * SMPTE RP210 http://www.smpte-ra.org/mdd/index.html
 323  */
 324 static const MXFLocalTagPair mxf_local_tag_batch[] = {
 325     // preface set
 326     { 0x3C0A, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x01,0x01,0x01,0x15,0x02,0x00,0x00,0x00,0x00}}, /* Instance UID */
 327     { 0x3B02, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x07,0x02,0x01,0x10,0x02,0x04,0x00,0x00}}, /* Last Modified Date */
 328     { 0x3B05, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x03,0x01,0x02,0x01,0x05,0x00,0x00,0x00}}, /* Version */
 329     { 0x3B06, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x06,0x01,0x01,0x04,0x06,0x04,0x00,0x00}}, /* Identifications reference */
 330     { 0x3B03, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x06,0x01,0x01,0x04,0x02,0x01,0x00,0x00}}, /* Content Storage reference */
 331     { 0x3B09, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x05,0x01,0x02,0x02,0x03,0x00,0x00,0x00,0x00}}, /* Operational Pattern UL */
 332     { 0x3B0A, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x05,0x01,0x02,0x02,0x10,0x02,0x01,0x00,0x00}}, /* Essence Containers UL batch */
 333     { 0x3B0B, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x05,0x01,0x02,0x02,0x10,0x02,0x02,0x00,0x00}}, /* DM Schemes UL batch */
 334     // Identification
 335     { 0x3C09, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x05,0x20,0x07,0x01,0x01,0x00,0x00,0x00}}, /* This Generation UID */
 336     { 0x3C01, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x05,0x20,0x07,0x01,0x02,0x01,0x00,0x00}}, /* Company Name */
 337     { 0x3C02, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x05,0x20,0x07,0x01,0x03,0x01,0x00,0x00}}, /* Product Name */
 338     { 0x3C04, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x05,0x20,0x07,0x01,0x05,0x01,0x00,0x00}}, /* Version String */
 339     { 0x3C05, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x05,0x20,0x07,0x01,0x07,0x00,0x00,0x00}}, /* Product ID */
 340     { 0x3C06, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x07,0x02,0x01,0x10,0x02,0x03,0x00,0x00}}, /* Modification Date */
 341     // Content Storage
 342     { 0x1901, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x06,0x01,0x01,0x04,0x05,0x01,0x00,0x00}}, /* Package strong reference batch */
 343     { 0x1902, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x06,0x01,0x01,0x04,0x05,0x02,0x00,0x00}}, /* Package strong reference batch */
 344     // Essence Container Data
 345     { 0x2701, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x06,0x01,0x01,0x06,0x01,0x00,0x00,0x00}}, /* Linked Package UID */
 346     { 0x3F07, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x04,0x01,0x03,0x04,0x04,0x00,0x00,0x00,0x00}}, /* BodySID */
 347     // Package
 348     { 0x4401, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x01,0x01,0x01,0x15,0x10,0x00,0x00,0x00,0x00}}, /* Package UID */
 349     { 0x4405, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x07,0x02,0x01,0x10,0x01,0x03,0x00,0x00}}, /* Package Creation Date */
 350     { 0x4404, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x07,0x02,0x01,0x10,0x02,0x05,0x00,0x00}}, /* Package Modified Date */
 351     { 0x4403, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x06,0x01,0x01,0x04,0x06,0x05,0x00,0x00}}, /* Tracks Strong reference array */
 352     { 0x4701, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x06,0x01,0x01,0x04,0x02,0x03,0x00,0x00}}, /* Descriptor */
 353     // Track
 354     { 0x4801, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x01,0x07,0x01,0x01,0x00,0x00,0x00,0x00}}, /* Track ID */
 355     { 0x4804, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x01,0x04,0x01,0x03,0x00,0x00,0x00,0x00}}, /* Track Number */
 356     { 0x4B01, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x05,0x30,0x04,0x05,0x00,0x00,0x00,0x00}}, /* Edit Rate */
 357     { 0x4B02, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x07,0x02,0x01,0x03,0x01,0x03,0x00,0x00}}, /* Origin */
 358     { 0x4803, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x06,0x01,0x01,0x04,0x02,0x04,0x00,0x00}}, /* Sequence reference */
 359     // Sequence
 360     { 0x0201, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x04,0x07,0x01,0x00,0x00,0x00,0x00,0x00}}, /* Data Definition UL */
 361     { 0x0202, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x07,0x02,0x02,0x01,0x01,0x03,0x00,0x00}}, /* Duration */
 362     { 0x1001, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x06,0x01,0x01,0x04,0x06,0x09,0x00,0x00}}, /* Structural Components reference array */
 363     // Source Clip
 364     { 0x1201, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x07,0x02,0x01,0x03,0x01,0x04,0x00,0x00}}, /* Start position */
 365     { 0x1101, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x06,0x01,0x01,0x03,0x01,0x00,0x00,0x00}}, /* SourcePackageID */
 366     { 0x1102, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x06,0x01,0x01,0x03,0x02,0x00,0x00,0x00}}, /* SourceTrackID */
 367     // Timecode Component
 368     { 0x1501, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x07,0x02,0x01,0x03,0x01,0x05,0x00,0x00}}, /* Start Time Code */
 369     { 0x1502, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x04,0x04,0x01,0x01,0x02,0x06,0x00,0x00}}, /* Rounded Time Code Base */
 370     { 0x1503, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x01,0x04,0x04,0x01,0x01,0x05,0x00,0x00,0x00}}, /* Drop Frame */
 371     // File Descriptor
 372     { 0x3F01, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x04,0x06,0x01,0x01,0x04,0x06,0x0B,0x00,0x00}}, /* Sub Descriptors reference array */
 373     { 0x3006, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x05,0x06,0x01,0x01,0x03,0x05,0x00,0x00,0x00}}, /* Linked Track ID */
 374     { 0x3001, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x01,0x04,0x06,0x01,0x01,0x00,0x00,0x00,0x00}}, /* SampleRate */
 375     { 0x3004, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x06,0x01,0x01,0x04,0x01,0x02,0x00,0x00}}, /* Essence Container */
 376     // Generic Picture Essence Descriptor
 377     { 0x320C, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x01,0x04,0x01,0x03,0x01,0x04,0x00,0x00,0x00}}, /* Frame Layout */
 378     { 0x320D, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x04,0x01,0x03,0x02,0x05,0x00,0x00,0x00}}, /* Video Line Map */
 379     { 0x3203, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x01,0x04,0x01,0x05,0x02,0x02,0x00,0x00,0x00}}, /* Stored Width */
 380     { 0x3202, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x01,0x04,0x01,0x05,0x02,0x01,0x00,0x00,0x00}}, /* Stored Height */
 381     { 0x3209, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x01,0x04,0x01,0x05,0x01,0x0C,0x00,0x00,0x00}}, /* Display Width */
 382     { 0x3208, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x01,0x04,0x01,0x05,0x01,0x0B,0x00,0x00,0x00}}, /* Display Height */
 383     { 0x320E, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x01,0x04,0x01,0x01,0x01,0x01,0x00,0x00,0x00}}, /* Aspect Ratio */
 384     { 0x3201, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x04,0x01,0x06,0x01,0x00,0x00,0x00,0x00}}, /* Picture Essence Coding */
 385     { 0x3212, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x04,0x01,0x03,0x01,0x06,0x00,0x00,0x00}}, /* Field Dominance (Opt) */
 386     // CDCI Picture Essence Descriptor
 387     { 0x3301, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x04,0x01,0x05,0x03,0x0A,0x00,0x00,0x00}}, /* Component Depth */
 388     { 0x3302, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x01,0x04,0x01,0x05,0x01,0x05,0x00,0x00,0x00}}, /* Horizontal Subsampling */
 389     // Generic Sound Essence Descriptor
 390     { 0x3D02, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x04,0x04,0x02,0x03,0x01,0x04,0x00,0x00,0x00}}, /* Locked/Unlocked */
 391     { 0x3D03, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x05,0x04,0x02,0x03,0x01,0x01,0x01,0x00,0x00}}, /* Audio sampling rate */
 392     { 0x3D07, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x05,0x04,0x02,0x01,0x01,0x04,0x00,0x00,0x00}}, /* ChannelCount */
 393     { 0x3D01, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x04,0x04,0x02,0x03,0x03,0x04,0x00,0x00,0x00}}, /* Quantization bits */
 394     { 0x3D06, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x04,0x02,0x04,0x02,0x00,0x00,0x00,0x00}}, /* Sound Essence Compression */
 395     // Index Table Segment
 396     { 0x3F0B, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x05,0x05,0x30,0x04,0x06,0x00,0x00,0x00,0x00}}, /* Index Edit Rate */
 397     { 0x3F0C, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x05,0x07,0x02,0x01,0x03,0x01,0x0A,0x00,0x00}}, /* Index Start Position */
 398     { 0x3F0D, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x05,0x07,0x02,0x02,0x01,0x01,0x02,0x00,0x00}}, /* Index Duration */
 399     { 0x3F05, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x04,0x04,0x06,0x02,0x01,0x00,0x00,0x00,0x00}}, /* Edit Unit Byte Count */
 400     { 0x3F06, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x04,0x01,0x03,0x04,0x05,0x00,0x00,0x00,0x00}}, /* IndexSID */
 401     { 0x3F08, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x04,0x04,0x04,0x04,0x01,0x01,0x00,0x00,0x00}}, /* Slice Count */
 402     { 0x3F09, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x05,0x04,0x04,0x04,0x01,0x06,0x00,0x00,0x00}}, /* Delta Entry Array */
 403     { 0x3F0A, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x05,0x04,0x04,0x04,0x02,0x05,0x00,0x00,0x00}}, /* Index Entry Array */
 404     // MPEG video Descriptor
 405     { 0x8000, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x05,0x04,0x01,0x06,0x02,0x01,0x0B,0x00,0x00}}, /* BitRate */
 406     { 0x8007, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x05,0x04,0x01,0x06,0x02,0x01,0x0A,0x00,0x00}}, /* ProfileAndLevel */
 407     // Wave Audio Essence Descriptor
 408     { 0x3D09, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x05,0x04,0x02,0x03,0x03,0x05,0x00,0x00,0x00}}, /* Average Bytes Per Second */
 409     { 0x3D0A, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x05,0x04,0x02,0x03,0x02,0x01,0x00,0x00,0x00}}, /* Block Align */
 410 };
 411
 412 static void mxf_write_uuid(AVIOContext *pb, enum MXFMetadataSetType type, int value)
 413 {
 414     avio_write(pb, uuid_base, 12);
 415     avio_wb16(pb, type);
 416     avio_wb16(pb, value);
 417 }
 418
 419 static void mxf_write_umid(AVFormatContext *s, int type)
 420 {
 421     MXFContext *mxf = s->priv_data;
 422     avio_write(s->pb, umid_ul, 13);
 423     avio_wb24(s->pb, mxf->instance_number);
 424     avio_write(s->pb, mxf->umid, 15);
 425     avio_w8(s->pb, type);
 426 }
 427
 428 static void mxf_write_refs_count(AVIOContext *pb, int ref_count)
 429 {
 430     avio_wb32(pb, ref_count);
 431     avio_wb32(pb, 16);
 432 }
 433
 434 static int klv_ber_length(uint64_t len)
 435 {
 436     if (len < 128)
 437         return 1;
 438     else
 439         return (av_log2(len) >> 3) + 2;
 440 }
 441
 442 static int klv_encode_ber_length(AVIOContext *pb, uint64_t len)
 443 {
 444     // Determine the best BER size
 445     int size;
 446     if (len < 128) {
 447         //short form
 448         avio_w8(pb, len);
 449         return 1;
 450     }
 451
 452     size = (av_log2(len) >> 3) + 1;
 453
 454     // long form
 455     avio_w8(pb, 0x80 + size);
 456     while(size) {
 457         size--;
 458         avio_w8(pb, len >> 8 * size & 0xff);
 459     }
 460     return 0;
 461 }
 462
 463 static void klv_encode_ber4_length(AVIOContext *pb, int len)
 464 {
 465     avio_w8(pb, 0x80 + 3);
 466     avio_wb24(pb, len);
 467 }
 468
 469 /*
 470  * Get essence container ul index
 471  */
 472 static int mxf_get_essence_container_ul_index(enum AVCodecID id)
 473 {
 474     int i;
 475     for (i = 0; mxf_essence_mappings[i].id; i++)
 476         if (mxf_essence_mappings[i].id == id)
 477             return mxf_essence_mappings[i].index;
 478     return -1;
 479 }
 480
 481 static void mxf_write_primer_pack(AVFormatContext *s)
 482 {
 483     AVIOContext *pb = s->pb;
 484     int local_tag_number, i = 0;
 485
 486     local_tag_number = FF_ARRAY_ELEMS(mxf_local_tag_batch);
 487
 488     avio_write(pb, primer_pack_key, 16);
 489     klv_encode_ber_length(pb, local_tag_number * 18 + 8);
 490
 491     avio_wb32(pb, local_tag_number); // local_tag num
 492     avio_wb32(pb, 18); // item size, always 18 according to the specs
 493
 494     for (i = 0; i < local_tag_number; i++) {
 495         avio_wb16(pb, mxf_local_tag_batch[i].local_tag);
 496         avio_write(pb, mxf_local_tag_batch[i].uid, 16);
 497     }
 498 }
 499
 500 static void mxf_write_local_tag(AVIOContext *pb, int size, int tag)
 501 {
 502     avio_wb16(pb, tag);
 503     avio_wb16(pb, size);
 504 }
 505
 506 static void mxf_write_metadata_key(AVIOContext *pb, unsigned int value)
 507 {
 508     avio_write(pb, header_metadata_key, 13);
 509     avio_wb24(pb, value);
 510 }
 511
 512 static void mxf_free(AVFormatContext *s)
 513 {
 514     int i;
 515
 516     for (i = 0; i < s->nb_streams; i++) {
 517         AVStream *st = s->streams[i];
 518         av_freep(&st->priv_data);
 519     }
 520 }
 521
 522 static const MXFCodecUL *mxf_get_data_definition_ul(int type)
 523 {
 524     const MXFCodecUL *uls = ff_mxf_data_definition_uls;
 525     while (uls->uid[0]) {
 526         if (type == uls->id)
 527             break;
 528         uls++;
 529     }
 530     return uls;
 531 }
 532
 533 //one EC -> one descriptor. N ECs -> MultipleDescriptor + N descriptors
 534 #define DESCRIPTOR_COUNT(essence_container_count) \
 535     (essence_container_count > 1 ? essence_container_count + 1 : essence_container_count)
 536
 537 static void mxf_write_essence_container_refs(AVFormatContext *s)
 538 {
 539     MXFContext *c = s->priv_data;
 540     AVIOContext *pb = s->pb;
 541     int i;
 542
 543     mxf_write_refs_count(pb, DESCRIPTOR_COUNT(c->essence_container_count));
 544     av_log(s,AV_LOG_DEBUG, "essence container count:%d\n", c->essence_container_count);
 545     for (i = 0; i < c->essence_container_count; i++) {
 546         MXFStreamContext *sc = s->streams[i]->priv_data;
 547         avio_write(pb, mxf_essence_container_uls[sc->index].container_ul, 16);
 548     }
 549
 550     if (c->essence_container_count > 1)
 551         avio_write(pb, multiple_desc_ul, 16);
 552 }
 553
 554 static void mxf_write_preface(AVFormatContext *s)
 555 {
 556     MXFContext *mxf = s->priv_data;
 557     AVIOContext *pb = s->pb;
 558
 559     mxf_write_metadata_key(pb, 0x012f00);
 560     PRINT_KEY(s, "preface key", pb->buf_ptr - 16);
 561     klv_encode_ber_length(pb, 130 + 16LL * DESCRIPTOR_COUNT(mxf->essence_container_count));
 562
 563     // write preface set uid
 564     mxf_write_local_tag(pb, 16, 0x3C0A);
 565     mxf_write_uuid(pb, Preface, 0);
 566     PRINT_KEY(s, "preface uid", pb->buf_ptr - 16);
 567
 568     // last modified date
 569     mxf_write_local_tag(pb, 8, 0x3B02);
 570     avio_wb64(pb, mxf->timestamp);
 571
 572     // write version
 573     mxf_write_local_tag(pb, 2, 0x3B05);
 574     avio_wb16(pb, 258); // v1.2
 575
 576     // write identification_refs
 577     mxf_write_local_tag(pb, 16 + 8, 0x3B06);
 578     mxf_write_refs_count(pb, 1);
 579     mxf_write_uuid(pb, Identification, 0);
 580
 581     // write content_storage_refs
 582     mxf_write_local_tag(pb, 16, 0x3B03);
 583     mxf_write_uuid(pb, ContentStorage, 0);
 584
 585     // operational pattern
 586     mxf_write_local_tag(pb, 16, 0x3B09);
 587     avio_write(pb, op1a_ul, 16);
 588
 589     // write essence_container_refs
 590     mxf_write_local_tag(pb, 8 + 16LL * DESCRIPTOR_COUNT(mxf->essence_container_count), 0x3B0A);
 591     mxf_write_essence_container_refs(s);
 592
 593     // write dm_scheme_refs
 594     mxf_write_local_tag(pb, 8, 0x3B0B);
 595     avio_wb64(pb, 0);
 596 }
 597
 598 /*
 599  * Write a local tag containing an ascii string as utf-16
 600  */
 601 static void mxf_write_local_tag_utf16(AVIOContext *pb, int tag, const char *value)
 602 {
 603     int i, size = strlen(value);
 604     mxf_write_local_tag(pb, size*2, tag);
 605     for (i = 0; i < size; i++)
 606         avio_wb16(pb, value[i]);
 607 }
 608
 609 static void mxf_write_identification(AVFormatContext *s)
 610 {
 611     MXFContext *mxf = s->priv_data;
 612     AVIOContext *pb = s->pb;
 613     const char *company = "FFmpeg";
 614     const char *product = "OP1a Muxer";
 615     const char *version;
 616     int length;
 617
 618     mxf_write_metadata_key(pb, 0x013000);
 619     PRINT_KEY(s, "identification key", pb->buf_ptr - 16);
 620
 621     version = s->streams[0]->codec->flags & CODEC_FLAG_BITEXACT ?
 622         "0.0.0" : AV_STRINGIFY(LIBAVFORMAT_VERSION);
 623     length = 84 + (strlen(company)+strlen(product)+strlen(version))*2; // utf-16
 624     klv_encode_ber_length(pb, length);
 625
 626     // write uid
 627     mxf_write_local_tag(pb, 16, 0x3C0A);
 628     mxf_write_uuid(pb, Identification, 0);
 629     PRINT_KEY(s, "identification uid", pb->buf_ptr - 16);
 630
 631     // write generation uid
 632     mxf_write_local_tag(pb, 16, 0x3C09);
 633     mxf_write_uuid(pb, Identification, 1);
 634
 635     mxf_write_local_tag_utf16(pb, 0x3C01, company); // Company Name
 636     mxf_write_local_tag_utf16(pb, 0x3C02, product); // Product Name
 637     mxf_write_local_tag_utf16(pb, 0x3C04, version); // Version String
 638
 639     // write product uid
 640     mxf_write_local_tag(pb, 16, 0x3C05);
 641     mxf_write_uuid(pb, Identification, 2);
 642
 643     // modification date
 644     mxf_write_local_tag(pb, 8, 0x3C06);
 645     avio_wb64(pb, mxf->timestamp);
 646 }
 647
 648 static void mxf_write_content_storage(AVFormatContext *s)
 649 {
 650     AVIOContext *pb = s->pb;
 651
 652     mxf_write_metadata_key(pb, 0x011800);
 653     PRINT_KEY(s, "content storage key", pb->buf_ptr - 16);
 654     klv_encode_ber_length(pb, 92);
 655
 656     // write uid
 657     mxf_write_local_tag(pb, 16, 0x3C0A);
 658     mxf_write_uuid(pb, ContentStorage, 0);
 659     PRINT_KEY(s, "content storage uid", pb->buf_ptr - 16);
 660
 661     // write package reference
 662     mxf_write_local_tag(pb, 16 * 2 + 8, 0x1901);
 663     mxf_write_refs_count(pb, 2);
 664     mxf_write_uuid(pb, MaterialPackage, 0);
 665     mxf_write_uuid(pb, SourcePackage, 0);
 666
 667     // write essence container data
 668     mxf_write_local_tag(pb, 8 + 16, 0x1902);
 669     mxf_write_refs_count(pb, 1);
 670     mxf_write_uuid(pb, EssenceContainerData, 0);
 671 }
 672
 673 static void mxf_write_track(AVFormatContext *s, AVStream *st, enum MXFMetadataSetType type)
 674 {
 675     MXFContext *mxf = s->priv_data;
 676     AVIOContext *pb = s->pb;
 677     MXFStreamContext *sc = st->priv_data;
 678
 679     mxf_write_metadata_key(pb, 0x013b00);
 680     PRINT_KEY(s, "track key", pb->buf_ptr - 16);
 681     klv_encode_ber_length(pb, 80);
 682
 683     // write track uid
 684     mxf_write_local_tag(pb, 16, 0x3C0A);
 685     mxf_write_uuid(pb, type == MaterialPackage ? Track : Track + TypeBottom, st->index);
 686     PRINT_KEY(s, "track uid", pb->buf_ptr - 16);
 687
 688     // write track id
 689     mxf_write_local_tag(pb, 4, 0x4801);
 690     avio_wb32(pb, st->index+2);
 691
 692     // write track number
 693     mxf_write_local_tag(pb, 4, 0x4804);
 694     if (type == MaterialPackage)
 695         avio_wb32(pb, 0); // track number of material package is 0
 696     else
 697         avio_write(pb, sc->track_essence_element_key + 12, 4);
 698
 699     mxf_write_local_tag(pb, 8, 0x4B01);
 700     avio_wb32(pb, mxf->time_base.den);
 701     avio_wb32(pb, mxf->time_base.num);
 702
 703     // write origin
 704     mxf_write_local_tag(pb, 8, 0x4B02);
 705     avio_wb64(pb, 0);
 706
 707     // write sequence refs
 708     mxf_write_local_tag(pb, 16, 0x4803);
 709     mxf_write_uuid(pb, type == MaterialPackage ? Sequence: Sequence + TypeBottom, st->index);
 710 }
 711
 712 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 };
 713
 714 static void mxf_write_common_fields(AVFormatContext *s, AVStream *st)
 715 {
 716     MXFContext *mxf = s->priv_data;
 717     AVIOContext *pb = s->pb;
 718
 719     // find data define uls
 720     mxf_write_local_tag(pb, 16, 0x0201);
 721     if (st == mxf->timecode_track)
 722         avio_write(pb, smpte_12m_timecode_track_data_ul, 16);
 723     else {
 724         const MXFCodecUL *data_def_ul = mxf_get_data_definition_ul(st->codec->codec_type);
 725         avio_write(pb, data_def_ul->uid, 16);
 726     }
 727
 728     // write duration
 729     mxf_write_local_tag(pb, 8, 0x0202);
 730     avio_wb64(pb, mxf->duration);
 731 }
 732
 733 static void mxf_write_sequence(AVFormatContext *s, AVStream *st, enum MXFMetadataSetType type)
 734 {
 735     MXFContext *mxf = s->priv_data;
 736     AVIOContext *pb = s->pb;
 737     enum MXFMetadataSetType component;
 738
 739     mxf_write_metadata_key(pb, 0x010f00);
 740     PRINT_KEY(s, "sequence key", pb->buf_ptr - 16);
 741     klv_encode_ber_length(pb, 80);
 742
 743     mxf_write_local_tag(pb, 16, 0x3C0A);
 744     mxf_write_uuid(pb, type == MaterialPackage ? Sequence: Sequence + TypeBottom, st->index);
 745
 746     PRINT_KEY(s, "sequence uid", pb->buf_ptr - 16);
 747     mxf_write_common_fields(s, st);
 748
 749     // write structural component
 750     mxf_write_local_tag(pb, 16 + 8, 0x1001);
 751     mxf_write_refs_count(pb, 1);
 752     if (st == mxf->timecode_track)
 753         component = TimecodeComponent;
 754     else
 755         component = SourceClip;
 756     if (type == SourcePackage)
 757         component += TypeBottom;
 758     mxf_write_uuid(pb, component, st->index);
 759 }
 760
 761 static void mxf_write_timecode_component(AVFormatContext *s, AVStream *st, enum MXFMetadataSetType type)
 762 {
 763     MXFContext *mxf = s->priv_data;
 764     AVIOContext *pb = s->pb;
 765
 766     mxf_write_metadata_key(pb, 0x011400);
 767     klv_encode_ber_length(pb, 75);
 768
 769     // UID
 770     mxf_write_local_tag(pb, 16, 0x3C0A);
 771     mxf_write_uuid(pb, type == MaterialPackage ? TimecodeComponent :
 772                    TimecodeComponent + TypeBottom, st->index);
 773
 774     mxf_write_common_fields(s, st);
 775
 776     // Start Time Code
 777     mxf_write_local_tag(pb, 8, 0x1501);
 778     avio_wb64(pb, mxf->tc.start);
 779
 780     // Rounded Time Code Base
 781     mxf_write_local_tag(pb, 2, 0x1502);
 782     avio_wb16(pb, mxf->timecode_base);
 783
 784     // Drop Frame
 785     mxf_write_local_tag(pb, 1, 0x1503);
 786     avio_w8(pb, !!(mxf->tc.flags & AV_TIMECODE_FLAG_DROPFRAME));
 787 }
 788
 789 static void mxf_write_structural_component(AVFormatContext *s, AVStream *st, enum MXFMetadataSetType type)
 790 {
 791     AVIOContext *pb = s->pb;
 792     int i;
 793
 794     mxf_write_metadata_key(pb, 0x011100);
 795     PRINT_KEY(s, "sturctural component key", pb->buf_ptr - 16);
 796     klv_encode_ber_length(pb, 108);
 797
 798     // write uid
 799     mxf_write_local_tag(pb, 16, 0x3C0A);
 800     mxf_write_uuid(pb, type == MaterialPackage ? SourceClip: SourceClip + TypeBottom, st->index);
 801
 802     PRINT_KEY(s, "structural component uid", pb->buf_ptr - 16);
 803     mxf_write_common_fields(s, st);
 804
 805     // write start_position
 806     mxf_write_local_tag(pb, 8, 0x1201);
 807     avio_wb64(pb, 0);
 808
 809     // write source package uid, end of the reference
 810     mxf_write_local_tag(pb, 32, 0x1101);
 811     if (type == SourcePackage) {
 812         for (i = 0; i < 4; i++)
 813             avio_wb64(pb, 0);
 814     } else
 815         mxf_write_umid(s, 1);
 816
 817     // write source track id
 818     mxf_write_local_tag(pb, 4, 0x1102);
 819     if (type == SourcePackage)
 820         avio_wb32(pb, 0);
 821     else
 822         avio_wb32(pb, st->index+2);
 823 }
 824
 825 static void mxf_write_multi_descriptor(AVFormatContext *s)
 826 {
 827     MXFContext *mxf = s->priv_data;
 828     AVIOContext *pb = s->pb;
 829     const uint8_t *ul;
 830     int i;
 831
 832     mxf_write_metadata_key(pb, 0x014400);
 833     PRINT_KEY(s, "multiple descriptor key", pb->buf_ptr - 16);
 834     klv_encode_ber_length(pb, 64 + 16LL * s->nb_streams);
 835
 836     mxf_write_local_tag(pb, 16, 0x3C0A);
 837     mxf_write_uuid(pb, MultipleDescriptor, 0);
 838     PRINT_KEY(s, "multi_desc uid", pb->buf_ptr - 16);
 839
 840     // write sample rate
 841     mxf_write_local_tag(pb, 8, 0x3001);
 842     avio_wb32(pb, mxf->time_base.den);
 843     avio_wb32(pb, mxf->time_base.num);
 844
 845     // write essence container ul
 846     mxf_write_local_tag(pb, 16, 0x3004);
 847     if (mxf->essence_container_count > 1)
 848         ul = multiple_desc_ul;
 849     else {
 850         MXFStreamContext *sc = s->streams[0]->priv_data;
 851         ul = mxf_essence_container_uls[sc->index].container_ul;
 852     }
 853     avio_write(pb, ul, 16);
 854
 855     // write sub descriptor refs
 856     mxf_write_local_tag(pb, s->nb_streams * 16 + 8, 0x3F01);
 857     mxf_write_refs_count(pb, s->nb_streams);
 858     for (i = 0; i < s->nb_streams; i++)
 859         mxf_write_uuid(pb, SubDescriptor, i);
 860 }
 861
 862 static void mxf_write_generic_desc(AVFormatContext *s, AVStream *st, const UID key, unsigned size)
 863 {
 864     MXFContext *mxf = s->priv_data;
 865     MXFStreamContext *sc = st->priv_data;
 866     AVIOContext *pb = s->pb;
 867
 868     avio_write(pb, key, 16);
 869     klv_encode_ber4_length(pb, size+20+8+12+20);
 870
 871     mxf_write_local_tag(pb, 16, 0x3C0A);
 872     mxf_write_uuid(pb, SubDescriptor, st->index);
 873
 874     mxf_write_local_tag(pb, 4, 0x3006);
 875     avio_wb32(pb, st->index+2);
 876
 877     mxf_write_local_tag(pb, 8, 0x3001);
 878     avio_wb32(pb, mxf->time_base.den);
 879     avio_wb32(pb, mxf->time_base.num);
 880
 881     mxf_write_local_tag(pb, 16, 0x3004);
 882     avio_write(pb, mxf_essence_container_uls[sc->index].container_ul, 16);
 883 }
 884
 885 static const UID mxf_mpegvideo_descriptor_key = { 0x06,0x0E,0x2B,0x34,0x02,0x53,0x01,0x01,0x0d,0x01,0x01,0x01,0x01,0x01,0x51,0x00 };
 886 static const UID mxf_wav_descriptor_key       = { 0x06,0x0E,0x2B,0x34,0x02,0x53,0x01,0x01,0x0d,0x01,0x01,0x01,0x01,0x01,0x48,0x00 };
 887 static const UID mxf_aes3_descriptor_key      = { 0x06,0x0E,0x2B,0x34,0x02,0x53,0x01,0x01,0x0d,0x01,0x01,0x01,0x01,0x01,0x47,0x00 };
 888 static const UID mxf_cdci_descriptor_key      = { 0x06,0x0E,0x2B,0x34,0x02,0x53,0x01,0x01,0x0D,0x01,0x01,0x01,0x01,0x01,0x28,0x00 };
 889 static const UID mxf_generic_sound_descriptor_key = { 0x06,0x0E,0x2B,0x34,0x02,0x53,0x01,0x01,0x0D,0x01,0x01,0x01,0x01,0x01,0x42,0x00 };
 890
 891 static void mxf_write_cdci_common(AVFormatContext *s, AVStream *st, const UID key, unsigned size)
 892 {
 893     MXFStreamContext *sc = st->priv_data;
 894     AVIOContext *pb = s->pb;
 895     int stored_height = (st->codec->height+15)/16*16;
 896     int display_height;
 897     int f1, f2;
 898     unsigned desc_size = size+8+8+8+8+8+8+5+16+sc->interlaced*4+12+20;
 899     if (sc->interlaced && sc->field_dominance)
 900         desc_size += 5;
 901
 902     mxf_write_generic_desc(s, st, key, desc_size);
 903
 904     mxf_write_local_tag(pb, 4, 0x3203);
 905     avio_wb32(pb, st->codec->width);
 906
 907     mxf_write_local_tag(pb, 4, 0x3202);
 908     avio_wb32(pb, stored_height>>sc->interlaced);
 909
 910     mxf_write_local_tag(pb, 4, 0x3209);
 911     avio_wb32(pb, st->codec->width);
 912
 913     if (st->codec->height == 608) // PAL + VBI
 914         display_height = 576;
 915     else if (st->codec->height == 512)  // NTSC + VBI
 916         display_height = 486;
 917     else
 918         display_height = st->codec->height;
 919
 920     mxf_write_local_tag(pb, 4, 0x3208);
 921     avio_wb32(pb, display_height>>sc->interlaced);
 922
 923     // component depth
 924     mxf_write_local_tag(pb, 4, 0x3301);
 925     avio_wb32(pb, sc->component_depth);
 926
 927     // horizontal subsampling
 928     mxf_write_local_tag(pb, 4, 0x3302);
 929     avio_wb32(pb, 2);
 930
 931     // frame layout
 932     mxf_write_local_tag(pb, 1, 0x320C);
 933     avio_w8(pb, sc->interlaced);
 934
 935     // video line map
 936     switch (st->codec->height) {
 937     case  576: f1 = 23; f2 = st->codec->codec_id == AV_CODEC_ID_DVVIDEO ? 335 : 336; break;
 938     case  608: f1 =  7; f2 = 320; break;
 939     case  480: f1 = 20; f2 = st->codec->codec_id == AV_CODEC_ID_DVVIDEO ? 285 : 283; break;
 940     case  512: f1 =  7; f2 = 270; break;
 941     case  720: f1 = 26; f2 =   0; break; // progressive
 942     case 1080: f1 = 21; f2 = 584; break;
 943     default:   f1 =  0; f2 =   0; break;
 944     }
 945
 946     if (!sc->interlaced) {
 947         f2  = 0;
 948         f1 *= 2;
 949     }
 950
 951     mxf_write_local_tag(pb, 12+sc->interlaced*4, 0x320D);
 952     avio_wb32(pb, sc->interlaced ? 2 : 1);
 953     avio_wb32(pb, 4);
 954     avio_wb32(pb, f1);
 955     if (sc->interlaced)
 956         avio_wb32(pb, f2);
 957
 958     mxf_write_local_tag(pb, 8, 0x320E);
 959     avio_wb32(pb, sc->aspect_ratio.num);
 960     avio_wb32(pb, sc->aspect_ratio.den);
 961
 962     mxf_write_local_tag(pb, 16, 0x3201);
 963     avio_write(pb, *sc->codec_ul, 16);
 964
 965     if (sc->interlaced && sc->field_dominance) {
 966         mxf_write_local_tag(pb, 1, 0x3212);
 967         avio_w8(pb, sc->field_dominance);
 968     }
 969
 970 }
 971
 972 static void mxf_write_cdci_desc(AVFormatContext *s, AVStream *st)
 973 {
 974     mxf_write_cdci_common(s, st, mxf_cdci_descriptor_key, 0);
 975 }
 976
 977 static void mxf_write_mpegvideo_desc(AVFormatContext *s, AVStream *st)
 978 {
 979     AVIOContext *pb = s->pb;
 980     int profile_and_level = (st->codec->profile<<4) | st->codec->level;
 981
 982     mxf_write_cdci_common(s, st, mxf_mpegvideo_descriptor_key, 8+5);
 983
 984     // bit rate
 985     mxf_write_local_tag(pb, 4, 0x8000);
 986     avio_wb32(pb, st->codec->bit_rate);
 987
 988     // profile and level
 989     mxf_write_local_tag(pb, 1, 0x8007);
 990     if (!st->codec->profile)
 991         profile_and_level |= 0x80; // escape bit
 992     avio_w8(pb, profile_and_level);
 993 }
 994
 995 static void mxf_write_generic_sound_common(AVFormatContext *s, AVStream *st, const UID key, unsigned size)
 996 {
 997     AVIOContext *pb = s->pb;
 998
 999     mxf_write_generic_desc(s, st, key, size+5+12+8+8);
1000
1001     // audio locked
1002     mxf_write_local_tag(pb, 1, 0x3D02);
1003     avio_w8(pb, 1);
1004
1005     // write audio sampling rate
1006     mxf_write_local_tag(pb, 8, 0x3D03);
1007     avio_wb32(pb, st->codec->sample_rate);
1008     avio_wb32(pb, 1);
1009
1010     mxf_write_local_tag(pb, 4, 0x3D07);
1011     avio_wb32(pb, st->codec->channels);
1012
1013     mxf_write_local_tag(pb, 4, 0x3D01);
1014     avio_wb32(pb, av_get_bits_per_sample(st->codec->codec_id));
1015 }
1016
1017 static void mxf_write_wav_common(AVFormatContext *s, AVStream *st, const UID key, unsigned size)
1018 {
1019     AVIOContext *pb = s->pb;
1020
1021     mxf_write_generic_sound_common(s, st, key, size+6+8);
1022
1023     mxf_write_local_tag(pb, 2, 0x3D0A);
1024     avio_wb16(pb, st->codec->block_align);
1025
1026     // avg bytes per sec
1027     mxf_write_local_tag(pb, 4, 0x3D09);
1028     avio_wb32(pb, st->codec->block_align*st->codec->sample_rate);
1029 }
1030
1031 static void mxf_write_wav_desc(AVFormatContext *s, AVStream *st)
1032 {
1033     mxf_write_wav_common(s, st, mxf_wav_descriptor_key, 0);
1034 }
1035
1036 static void mxf_write_aes3_desc(AVFormatContext *s, AVStream *st)
1037 {
1038     mxf_write_wav_common(s, st, mxf_aes3_descriptor_key, 0);
1039 }
1040
1041 static void mxf_write_generic_sound_desc(AVFormatContext *s, AVStream *st)
1042 {
1043     mxf_write_generic_sound_common(s, st, mxf_generic_sound_descriptor_key, 0);
1044 }
1045
1046 static void mxf_write_package(AVFormatContext *s, enum MXFMetadataSetType type)
1047 {
1048     MXFContext *mxf = s->priv_data;
1049     AVIOContext *pb = s->pb;
1050     int i, track_count = s->nb_streams+1;
1051
1052     if (type == MaterialPackage) {
1053         mxf_write_metadata_key(pb, 0x013600);
1054         PRINT_KEY(s, "Material Package key", pb->buf_ptr - 16);
1055         klv_encode_ber_length(pb, 92 + 16*track_count);
1056     } else {
1057         mxf_write_metadata_key(pb, 0x013700);
1058         PRINT_KEY(s, "Source Package key", pb->buf_ptr - 16);
1059         klv_encode_ber_length(pb, 112 + 16*track_count); // 20 bytes length for descriptor reference
1060     }
1061
1062     // write uid
1063     mxf_write_local_tag(pb, 16, 0x3C0A);
1064     mxf_write_uuid(pb, type, 0);
1065     av_log(s,AV_LOG_DEBUG, "package type:%d\n", type);
1066     PRINT_KEY(s, "package uid", pb->buf_ptr - 16);
1067
1068     // write package umid
1069     mxf_write_local_tag(pb, 32, 0x4401);
1070     mxf_write_umid(s, type == SourcePackage);
1071     PRINT_KEY(s, "package umid second part", pb->buf_ptr - 16);
1072
1073     // package creation date
1074     mxf_write_local_tag(pb, 8, 0x4405);
1075     avio_wb64(pb, mxf->timestamp);
1076
1077     // package modified date
1078     mxf_write_local_tag(pb, 8, 0x4404);
1079     avio_wb64(pb, mxf->timestamp);
1080
1081     // write track refs
1082     mxf_write_local_tag(pb, track_count*16 + 8, 0x4403);
1083     mxf_write_refs_count(pb, track_count);
1084     mxf_write_uuid(pb, type == MaterialPackage ? Track :
1085                    Track + TypeBottom, -1); // timecode track
1086     for (i = 0; i < s->nb_streams; i++)
1087         mxf_write_uuid(pb, type == MaterialPackage ? Track : Track + TypeBottom, i);
1088
1089     // write multiple descriptor reference
1090     if (type == SourcePackage) {
1091         mxf_write_local_tag(pb, 16, 0x4701);
1092         if (s->nb_streams > 1) {
1093             mxf_write_uuid(pb, MultipleDescriptor, 0);
1094             mxf_write_multi_descriptor(s);
1095         } else
1096             mxf_write_uuid(pb, SubDescriptor, 0);
1097     }
1098
1099     // write timecode track
1100     mxf_write_track(s, mxf->timecode_track, type);
1101     mxf_write_sequence(s, mxf->timecode_track, type);
1102     mxf_write_timecode_component(s, mxf->timecode_track, type);
1103
1104     for (i = 0; i < s->nb_streams; i++) {
1105         AVStream *st = s->streams[i];
1106         mxf_write_track(s, st, type);
1107         mxf_write_sequence(s, st, type);
1108         mxf_write_structural_component(s, st, type);
1109
1110         if (type == SourcePackage) {
1111             MXFStreamContext *sc = st->priv_data;
1112             mxf_essence_container_uls[sc->index].write_desc(s, st);
1113         }
1114     }
1115 }
1116
1117 static int mxf_write_essence_container_data(AVFormatContext *s)
1118 {
1119     AVIOContext *pb = s->pb;
1120
1121     mxf_write_metadata_key(pb, 0x012300);
1122     klv_encode_ber_length(pb, 72);
1123
1124     mxf_write_local_tag(pb, 16, 0x3C0A); // Instance UID
1125     mxf_write_uuid(pb, EssenceContainerData, 0);
1126
1127     mxf_write_local_tag(pb, 32, 0x2701); // Linked Package UID
1128     mxf_write_umid(s, 1);
1129
1130     mxf_write_local_tag(pb, 4, 0x3F07); // BodySID
1131     avio_wb32(pb, 1);
1132
1133     mxf_write_local_tag(pb, 4, 0x3F06); // IndexSID
1134     avio_wb32(pb, 2);
1135
1136     return 0;
1137 }
1138
1139 static int mxf_write_header_metadata_sets(AVFormatContext *s)
1140 {
1141     mxf_write_preface(s);
1142     mxf_write_identification(s);
1143     mxf_write_content_storage(s);
1144     mxf_write_package(s, MaterialPackage);
1145     mxf_write_package(s, SourcePackage);
1146     mxf_write_essence_container_data(s);
1147     return 0;
1148 }
1149
1150 static unsigned klv_fill_size(uint64_t size)
1151 {
1152     unsigned pad = KAG_SIZE - (size & (KAG_SIZE-1));
1153     if (pad < 20) // smallest fill item possible
1154         return pad + KAG_SIZE;
1155     else
1156         return pad & (KAG_SIZE-1);
1157 }
1158
1159 static void mxf_write_index_table_segment(AVFormatContext *s)
1160 {
1161     MXFContext *mxf = s->priv_data;
1162     AVIOContext *pb = s->pb;
1163     int i, j, temporal_reordering = 0;
1164     int key_index = mxf->last_key_index;
1165
1166     av_log(s, AV_LOG_DEBUG, "edit units count %d\n", mxf->edit_units_count);
1167
1168     if (!mxf->edit_units_count && !mxf->edit_unit_byte_count)
1169         return;
1170
1171     avio_write(pb, index_table_segment_key, 16);
1172
1173     if (mxf->edit_unit_byte_count) {
1174         klv_encode_ber_length(pb, 80);
1175     } else {
1176         klv_encode_ber_length(pb, 85 + 12+(s->nb_streams+1LL)*6 +
1177                               12+mxf->edit_units_count*(11+mxf->slice_count*4LL));
1178     }
1179
1180     // instance id
1181     mxf_write_local_tag(pb, 16, 0x3C0A);
1182     mxf_write_uuid(pb, IndexTableSegment, 0);
1183
1184     // index edit rate
1185     mxf_write_local_tag(pb, 8, 0x3F0B);
1186     avio_wb32(pb, mxf->time_base.den);
1187     avio_wb32(pb, mxf->time_base.num);
1188
1189     // index start position
1190     mxf_write_local_tag(pb, 8, 0x3F0C);
1191     avio_wb64(pb, mxf->last_indexed_edit_unit);
1192
1193     // index duration
1194     mxf_write_local_tag(pb, 8, 0x3F0D);
1195     if (mxf->edit_unit_byte_count)
1196         avio_wb64(pb, 0); // index table covers whole container
1197     else
1198         avio_wb64(pb, mxf->edit_units_count);
1199
1200     // edit unit byte count
1201     mxf_write_local_tag(pb, 4, 0x3F05);
1202     avio_wb32(pb, mxf->edit_unit_byte_count);
1203
1204     // index sid
1205     mxf_write_local_tag(pb, 4, 0x3F06);
1206     avio_wb32(pb, 2);
1207
1208     // body sid
1209     mxf_write_local_tag(pb, 4, 0x3F07);
1210     avio_wb32(pb, 1);
1211
1212     if (!mxf->edit_unit_byte_count) {
1213         // real slice count - 1
1214         mxf_write_local_tag(pb, 1, 0x3F08);
1215         avio_w8(pb, mxf->slice_count);
1216
1217         // delta entry array
1218         mxf_write_local_tag(pb, 8 + (s->nb_streams+1)*6, 0x3F09);
1219         avio_wb32(pb, s->nb_streams+1); // num of entries
1220         avio_wb32(pb, 6);               // size of one entry
1221         // write system item delta entry
1222         avio_w8(pb, 0);
1223         avio_w8(pb, 0); // slice entry
1224         avio_wb32(pb, 0); // element delta
1225         for (i = 0; i < s->nb_streams; i++) {
1226             AVStream *st = s->streams[i];
1227             MXFStreamContext *sc = st->priv_data;
1228             avio_w8(pb, sc->temporal_reordering);
1229             if (sc->temporal_reordering)
1230                 temporal_reordering = 1;
1231             if (i == 0) { // video track
1232                 avio_w8(pb, 0); // slice number
1233                 avio_wb32(pb, KAG_SIZE); // system item size including klv fill
1234             } else { // audio track
1235                 unsigned audio_frame_size = sc->aic.samples[0]*sc->aic.sample_size;
1236                 audio_frame_size += klv_fill_size(audio_frame_size);
1237                 avio_w8(pb, 1);
1238                 avio_wb32(pb, (i-1)*audio_frame_size); // element delta
1239             }
1240         }
1241
1242         mxf_write_local_tag(pb, 8 + mxf->edit_units_count*(11+mxf->slice_count*4), 0x3F0A);
1243         avio_wb32(pb, mxf->edit_units_count);  // num of entries
1244         avio_wb32(pb, 11+mxf->slice_count*4);  // size of one entry
1245
1246         for (i = 0; i < mxf->edit_units_count; i++) {
1247             int temporal_offset = 0;
1248
1249             if (!(mxf->index_entries[i].flags & 0x33)) { // I frame
1250                 mxf->last_key_index = key_index;
1251                 key_index = i;
1252             }
1253
1254             if (temporal_reordering) {
1255                 int pic_num_in_gop = i - key_index;
1256                 if (pic_num_in_gop != mxf->index_entries[i].temporal_ref) {
1257                     for (j = key_index; j < mxf->edit_units_count; j++) {
1258                         if (pic_num_in_gop == mxf->index_entries[j].temporal_ref)
1259                             break;
1260                     }
1261                     if (j == mxf->edit_units_count)
1262                         av_log(s, AV_LOG_WARNING, "missing frames\n");
1263                     temporal_offset = j - key_index - pic_num_in_gop;
1264                 }
1265             }
1266             avio_w8(pb, temporal_offset);
1267
1268             if ((mxf->index_entries[i].flags & 0x30) == 0x30) { // back and forward prediction
1269                 avio_w8(pb, mxf->last_key_index - i);
1270             } else {
1271                 avio_w8(pb, key_index - i); // key frame offset
1272                 if ((mxf->index_entries[i].flags & 0x20) == 0x20) // only forward
1273                     mxf->last_key_index = key_index;
1274             }
1275
1276             if (!(mxf->index_entries[i].flags & 0x33) && // I frame
1277                 mxf->index_entries[i].flags & 0x40 && !temporal_offset)
1278                 mxf->index_entries[i].flags |= 0x80; // random access
1279             avio_w8(pb, mxf->index_entries[i].flags);
1280             // stream offset
1281             avio_wb64(pb, mxf->index_entries[i].offset);
1282             if (s->nb_streams > 1)
1283                 avio_wb32(pb, mxf->index_entries[i].slice_offset);
1284         }
1285
1286         mxf->last_key_index = key_index - mxf->edit_units_count;
1287         mxf->last_indexed_edit_unit += mxf->edit_units_count;
1288         mxf->edit_units_count = 0;
1289     }
1290 }
1291
1292 static void mxf_write_klv_fill(AVFormatContext *s)
1293 {
1294     unsigned pad = klv_fill_size(avio_tell(s->pb));
1295     if (pad) {
1296         avio_write(s->pb, klv_fill_key, 16);
1297         pad -= 16 + 4;
1298         klv_encode_ber4_length(s->pb, pad);
1299         for (; pad; pad--)
1300             avio_w8(s->pb, 0);
1301         av_assert1(!(avio_tell(s->pb) & (KAG_SIZE-1)));
1302     }
1303 }
1304
1305 static void mxf_write_partition(AVFormatContext *s, int bodysid,
1306                                 int indexsid,
1307                                 const uint8_t *key, int write_metadata)
1308 {
1309     MXFContext *mxf = s->priv_data;
1310     AVIOContext *pb = s->pb;
1311     int64_t header_byte_count_offset;
1312     unsigned index_byte_count = 0;
1313     uint64_t partition_offset = avio_tell(pb);
1314
1315     if (!mxf->edit_unit_byte_count && mxf->edit_units_count)
1316         index_byte_count = 85 + 12+(s->nb_streams+1)*6 +
1317             12+mxf->edit_units_count*(11+mxf->slice_count*4);
1318     else if (mxf->edit_unit_byte_count && indexsid)
1319         index_byte_count = 80;
1320
1321     if (index_byte_count) {
1322         // add encoded ber length
1323         index_byte_count += 16 + klv_ber_length(index_byte_count);
1324         index_byte_count += klv_fill_size(index_byte_count);
1325     }
1326
1327     if (!memcmp(key, body_partition_key, 16)) {
1328         mxf->body_partition_offset =
1329             av_realloc(mxf->body_partition_offset,
1330                        (mxf->body_partitions_count+1)*
1331                        sizeof(*mxf->body_partition_offset));
1332         mxf->body_partition_offset[mxf->body_partitions_count++] = partition_offset;
1333     }
1334
1335     // write klv
1336     avio_write(pb, key, 16);
1337     klv_encode_ber_length(pb, 88 + 16LL * DESCRIPTOR_COUNT(mxf->essence_container_count));
1338
1339     // write partition value
1340     avio_wb16(pb, 1); // majorVersion
1341     avio_wb16(pb, 2); // minorVersion
1342     avio_wb32(pb, KAG_SIZE); // KAGSize
1343
1344     avio_wb64(pb, partition_offset); // ThisPartition
1345
1346     if (!memcmp(key, body_partition_key, 16) && mxf->body_partitions_count > 1)
1347         avio_wb64(pb, mxf->body_partition_offset[mxf->body_partitions_count-2]); // PreviousPartition
1348     else if (!memcmp(key, footer_partition_key, 16) && mxf->body_partitions_count)
1349         avio_wb64(pb, mxf->body_partition_offset[mxf->body_partitions_count-1]); // PreviousPartition
1350     else
1351         avio_wb64(pb, 0);
1352
1353     avio_wb64(pb, mxf->footer_partition_offset); // footerPartition
1354
1355     // set offset
1356     header_byte_count_offset = avio_tell(pb);
1357     avio_wb64(pb, 0); // headerByteCount, update later
1358
1359     // indexTable
1360     avio_wb64(pb, index_byte_count); // indexByteCount
1361     avio_wb32(pb, index_byte_count ? indexsid : 0); // indexSID
1362
1363     // BodyOffset
1364     if (bodysid && mxf->edit_units_count && mxf->body_partitions_count) {
1365         avio_wb64(pb, mxf->body_offset);
1366     } else
1367         avio_wb64(pb, 0);
1368
1369     avio_wb32(pb, bodysid); // bodySID
1370
1371     // operational pattern
1372     avio_write(pb, op1a_ul, 16);
1373
1374     // essence container
1375     mxf_write_essence_container_refs(s);
1376
1377     if (write_metadata) {
1378         // mark the start of the headermetadata and calculate metadata size
1379         int64_t pos, start;
1380         unsigned header_byte_count;
1381
1382         mxf_write_klv_fill(s);
1383         start = avio_tell(s->pb);
1384         mxf_write_primer_pack(s);
1385         mxf_write_header_metadata_sets(s);
1386         pos = avio_tell(s->pb);
1387         header_byte_count = pos - start + klv_fill_size(pos);
1388
1389         // update header_byte_count
1390         avio_seek(pb, header_byte_count_offset, SEEK_SET);
1391         avio_wb64(pb, header_byte_count);
1392         avio_seek(pb, pos, SEEK_SET);
1393     }
1394
1395     avio_flush(pb);
1396 }
1397
1398 static int mxf_parse_dnxhd_frame(AVFormatContext *s, AVStream *st,
1399 AVPacket *pkt)
1400 {
1401     MXFContext *mxf = s->priv_data;
1402     MXFStreamContext *sc = st->priv_data;
1403     int i, cid;
1404     uint8_t* header_cid;
1405     int frame_size = 0;
1406
1407     if (mxf->header_written)
1408         return 1;
1409
1410     if (pkt->size < 43)
1411         return -1;
1412
1413     header_cid = pkt->data + 0x28;
1414     cid = header_cid[0] << 24 | header_cid[1] << 16 | header_cid[2] << 8 | header_cid[3];
1415
1416     if ((frame_size = avpriv_dnxhd_get_frame_size(cid)) < 0)
1417         return -1;
1418
1419     switch (cid) {
1420     case 1235:
1421         sc->index = 24;
1422         sc->component_depth = 10;
1423         break;
1424     case 1237:
1425         sc->index = 25;
1426         break;
1427     case 1238:
1428         sc->index = 26;
1429         break;
1430     case 1241:
1431         sc->index = 27;
1432         sc->component_depth = 10;
1433         break;
1434     case 1242:
1435         sc->index = 28;
1436         break;
1437     case 1243:
1438         sc->index = 29;
1439         break;
1440     case 1250:
1441         sc->index = 30;
1442         sc->component_depth = 10;
1443         break;
1444     case 1251:
1445         sc->index = 31;
1446         break;
1447     case 1252:
1448         sc->index = 32;
1449         break;
1450     case 1253:
1451         sc->index = 33;
1452         break;
1453     default:
1454         return -1;
1455     }
1456
1457     sc->codec_ul = &mxf_essence_container_uls[sc->index].codec_ul;
1458     sc->aspect_ratio = (AVRational){ 16, 9 };
1459
1460     mxf->edit_unit_byte_count = KAG_SIZE;
1461     for (i = 0; i < s->nb_streams; i++) {
1462         AVStream *st = s->streams[i];
1463         MXFStreamContext *sc = st->priv_data;
1464         if (st->codec->codec_type == AVMEDIA_TYPE_AUDIO) {
1465             mxf->edit_unit_byte_count += 16 + 4 + sc->aic.samples[0]*sc->aic.sample_size;
1466             mxf->edit_unit_byte_count += klv_fill_size(mxf->edit_unit_byte_count);
1467         } else if (st->codec->codec_type == AVMEDIA_TYPE_VIDEO) {
1468             mxf->edit_unit_byte_count += 16 + 4 + frame_size;
1469             mxf->edit_unit_byte_count += klv_fill_size(mxf->edit_unit_byte_count);
1470         }
1471     }
1472
1473     return 1;
1474 }
1475
1476 static int mxf_parse_dv_frame(AVFormatContext *s, AVStream *st, AVPacket *pkt)
1477 {
1478     MXFContext *mxf = s->priv_data;
1479     MXFStreamContext *sc = st->priv_data;
1480     uint8_t *vs_pack, *vsc_pack;
1481     int i, ul_index, frame_size, stype, pal;
1482
1483     if (mxf->header_written)
1484         return 1;
1485
1486     // Check for minimal frame size
1487     if (pkt->size < 120000)
1488         return -1;
1489
1490     vs_pack  = pkt->data + 80*5 + 48;
1491     vsc_pack = pkt->data + 80*5 + 53;
1492     stype    = vs_pack[3] & 0x1f;
1493     pal      = (vs_pack[3] >> 5) & 0x1;
1494
1495     if ((vs_pack[2] & 0x07) == 0x02)
1496         sc->aspect_ratio = (AVRational){ 16, 9 };
1497     else
1498         sc->aspect_ratio = (AVRational){ 4, 3 };
1499
1500     sc->interlaced = (vsc_pack[3] >> 4) & 0x01;
1501     // TODO: fix dv encoder to set proper FF/FS value in VSC pack
1502     // and set field dominance accordingly
1503     // av_log(s, AV_LOG_DEBUG, "DV vsc pack ff/ss = %x\n", vsc_pack[2] >> 6);
1504
1505     switch (stype) {
1506     case 0x18: // DV100 720p
1507         ul_index = 6 + pal;
1508         frame_size = pal ? 288000 : 240000;
1509         if (sc->interlaced) {
1510             av_log(s, AV_LOG_ERROR, "source marked as interlaced but codec profile is progressive\n");
1511             sc->interlaced = 0;
1512         }
1513         break;
1514     case 0x14: // DV100 1080i
1515         ul_index = 4 + pal;
1516         frame_size = pal ? 576000 : 480000;
1517         break;
1518     case 0x04: // DV50
1519         ul_index = 2 + pal;
1520         frame_size = pal ? 288000 : 240000;
1521         break;
1522     default: // DV25
1523         ul_index = 0 + pal;
1524         frame_size = pal ? 144000 : 120000;
1525     }
1526
1527     sc->index = ul_index + 16;
1528     sc->codec_ul =  &mxf_essence_container_uls[sc->index].codec_ul;
1529
1530     mxf->edit_unit_byte_count = KAG_SIZE;
1531     for (i = 0; i < s->nb_streams; i++) {
1532         AVStream *st = s->streams[i];
1533         MXFStreamContext *sc = st->priv_data;
1534         if (st->codec->codec_type == AVMEDIA_TYPE_AUDIO) {
1535             mxf->edit_unit_byte_count += 16 + 4 + sc->aic.samples[0]*sc->aic.sample_size;
1536             mxf->edit_unit_byte_count += klv_fill_size(mxf->edit_unit_byte_count);
1537         } else if (st->codec->codec_type == AVMEDIA_TYPE_VIDEO) {
1538             mxf->edit_unit_byte_count += 16 + 4 + frame_size;
1539             mxf->edit_unit_byte_count += klv_fill_size(mxf->edit_unit_byte_count);
1540         }
1541     }
1542
1543     return 1;
1544 }
1545
1546 static const UID mxf_mpeg2_codec_uls[] = {
1547     { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x03,0x04,0x01,0x02,0x02,0x01,0x01,0x10,0x00 }, // MP-ML I-Frame
1548     { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x03,0x04,0x01,0x02,0x02,0x01,0x01,0x11,0x00 }, // MP-ML Long GOP
1549     { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x03,0x04,0x01,0x02,0x02,0x01,0x02,0x02,0x00 }, // 422P-ML I-Frame
1550     { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x03,0x04,0x01,0x02,0x02,0x01,0x02,0x03,0x00 }, // 422P-ML Long GOP
1551     { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x03,0x04,0x01,0x02,0x02,0x01,0x03,0x02,0x00 }, // MP-HL I-Frame
1552     { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x03,0x04,0x01,0x02,0x02,0x01,0x03,0x03,0x00 }, // MP-HL Long GOP
1553     { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x03,0x04,0x01,0x02,0x02,0x01,0x04,0x02,0x00 }, // 422P-HL I-Frame
1554     { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x03,0x04,0x01,0x02,0x02,0x01,0x04,0x03,0x00 }, // 422P-HL Long GOP
1555     { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x03,0x04,0x01,0x02,0x02,0x01,0x05,0x02,0x00 }, // MP@H-14 I-Frame
1556     { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x03,0x04,0x01,0x02,0x02,0x01,0x05,0x03,0x00 }, // MP@H-14 Long GOP
1557 };
1558
1559 static const UID *mxf_get_mpeg2_codec_ul(AVCodecContext *avctx)
1560 {
1561     int long_gop = avctx->gop_size > 1 || avctx->has_b_frames;
1562
1563     if (avctx->profile == 4) { // Main
1564         if (avctx->level == 8) // Main
1565             return &mxf_mpeg2_codec_uls[0+long_gop];
1566         else if (avctx->level == 4) // High
1567             return &mxf_mpeg2_codec_uls[4+long_gop];
1568         else if (avctx->level == 6) // High 14
1569             return &mxf_mpeg2_codec_uls[8+long_gop];
1570     } else if (avctx->profile == 0) { // 422
1571         if (avctx->level == 5) // Main
1572             return &mxf_mpeg2_codec_uls[2+long_gop];
1573         else if (avctx->level == 2) // High
1574             return &mxf_mpeg2_codec_uls[6+long_gop];
1575     }
1576     return NULL;
1577 }
1578
1579 static int mxf_parse_mpeg2_frame(AVFormatContext *s, AVStream *st,
1580                                  AVPacket *pkt, MXFIndexEntry *e)
1581 {
1582     MXFStreamContext *sc = st->priv_data;
1583     uint32_t c = -1;
1584     int i;
1585
1586     for(i = 0; i < pkt->size - 4; i++) {
1587         c = (c<<8) + pkt->data[i];
1588         if (c == 0x1b5) {
1589             if ((pkt->data[i+1] & 0xf0) == 0x10) { // seq ext
1590                 st->codec->profile = pkt->data[i+1] & 0x07;
1591                 st->codec->level   = pkt->data[i+2] >> 4;
1592             } else if (i + 5 < pkt->size && (pkt->data[i+1] & 0xf0) == 0x80) { // pict coding ext
1593                 sc->interlaced = !(pkt->data[i+5] & 0x80); // progressive frame
1594                 if (sc->interlaced)
1595                     sc->field_dominance = 1 + !(pkt->data[i+4] & 0x80); // top field first
1596                 break;
1597             }
1598         } else if (c == 0x1b8) { // gop
1599             if (pkt->data[i+4]>>6 & 0x01) { // closed
1600                 sc->closed_gop = 1;
1601                 if (e->flags & 0x40) // sequence header present
1602                     e->flags |= 0x80; // random access
1603             }
1604         } else if (c == 0x1b3) { // seq
1605             e->flags |= 0x40;
1606             switch ((pkt->data[i+4]>>4) & 0xf) {
1607             case 2:  sc->aspect_ratio = (AVRational){  4,  3}; break;
1608             case 3:  sc->aspect_ratio = (AVRational){ 16,  9}; break;
1609             case 4:  sc->aspect_ratio = (AVRational){221,100}; break;
1610             default:
1611                 av_reduce(&sc->aspect_ratio.num, &sc->aspect_ratio.den,
1612                           st->codec->width, st->codec->height, 1024*1024);
1613             }
1614         } else if (c == 0x100) { // pic
1615             int pict_type = (pkt->data[i+2]>>3) & 0x07;
1616             e->temporal_ref = (pkt->data[i+1]<<2) | (pkt->data[i+2]>>6);
1617             if (pict_type == 2) { // P frame
1618                 e->flags |= 0x22;
1619                 sc->closed_gop = 0; // reset closed gop, don't matter anymore
1620             } else if (pict_type == 3) { // B frame
1621                 if (sc->closed_gop)
1622                     e->flags |= 0x13; // only backward prediction
1623                 else
1624                     e->flags |= 0x33;
1625                 sc->temporal_reordering = -1;
1626             } else if (!pict_type) {
1627                 av_log(s, AV_LOG_ERROR, "error parsing mpeg2 frame\n");
1628                 return 0;
1629             }
1630         }
1631     }
1632     if (s->oformat != &ff_mxf_d10_muxer)
1633         sc->codec_ul = mxf_get_mpeg2_codec_ul(st->codec);
1634     return !!sc->codec_ul;
1635 }
1636
1637 static uint64_t mxf_parse_timestamp(time_t timestamp)
1638 {
1639     struct tm *time = gmtime(&timestamp);
1640     if (!time)
1641         return 0;
1642     return (uint64_t)(time->tm_year+1900) << 48 |
1643            (uint64_t)(time->tm_mon+1)     << 40 |
1644            (uint64_t) time->tm_mday       << 32 |
1645                       time->tm_hour       << 24 |
1646                       time->tm_min        << 16 |
1647                       time->tm_sec        << 8;
1648 }
1649
1650 static void mxf_gen_umid(AVFormatContext *s)
1651 {
1652     MXFContext *mxf = s->priv_data;
1653     uint32_t seed = av_get_random_seed();
1654     uint64_t umid = seed + 0x5294713400000000LL;
1655
1656     AV_WB64(mxf->umid  , umid);
1657     AV_WB64(mxf->umid+8, umid>>8);
1658
1659     mxf->instance_number = seed;
1660 }
1661
1662 static int mxf_write_header(AVFormatContext *s)
1663 {
1664     MXFContext *mxf = s->priv_data;
1665     int i, ret;
1666     uint8_t present[FF_ARRAY_ELEMS(mxf_essence_container_uls)] = {0};
1667     const MXFSamplesPerFrame *spf = NULL;
1668     AVDictionaryEntry *t;
1669     int64_t timestamp = 0;
1670     AVDictionaryEntry *tcr = av_dict_get(s->metadata, "timecode", NULL, 0);
1671
1672     if (!s->nb_streams)
1673         return -1;
1674
1675     for (i = 0; i < s->nb_streams; i++) {
1676         AVStream *st = s->streams[i];
1677         MXFStreamContext *sc = av_mallocz(sizeof(*sc));
1678         if (!sc)
1679             return AVERROR(ENOMEM);
1680         st->priv_data = sc;
1681
1682         if ((i == 0) ^ (st->codec->codec_type == AVMEDIA_TYPE_VIDEO)) {
1683             av_log(s, AV_LOG_ERROR, "there must be exactly one video stream and it must be the first one\n");
1684             return -1;
1685         }
1686
1687         if (st->codec->codec_type == AVMEDIA_TYPE_VIDEO) {
1688             AVRational rate, tbc = st->codec->time_base;
1689             // Default component depth to 8
1690             sc->component_depth = 8;
1691             mxf->timecode_base = (tbc.den + tbc.num/2) / tbc.num;
1692             spf = ff_mxf_get_samples_per_frame(s, tbc);
1693             if (!spf) {
1694                 av_log(s, AV_LOG_ERROR, "Unsupported video frame rate %d/%d\n",
1695                        tbc.den, tbc.num);
1696                 return AVERROR(EINVAL);
1697             }
1698             mxf->time_base = spf->time_base;
1699             rate = av_inv_q(mxf->time_base);
1700             avpriv_set_pts_info(st, 64, mxf->time_base.num, mxf->time_base.den);
1701             if (!tcr)
1702                 tcr = av_dict_get(st->metadata, "timecode", NULL, 0);
1703             if (tcr)
1704                 ret = av_timecode_init_from_string(&mxf->tc, rate, tcr->value, s);
1705             else
1706                 ret = av_timecode_init(&mxf->tc, rate, 0, 0, s);
1707             if (ret < 0)
1708                 return ret;
1709             if (s->oformat == &ff_mxf_d10_muxer) {
1710                 if (st->codec->bit_rate == 50000000) {
1711                     if (mxf->time_base.den == 25) sc->index = 3;
1712                     else                          sc->index = 5;
1713                 } else if (st->codec->bit_rate == 40000000) {
1714                     if (mxf->time_base.den == 25) sc->index = 7;
1715                     else                          sc->index = 9;
1716                 } else if (st->codec->bit_rate == 30000000) {
1717                     if (mxf->time_base.den == 25) sc->index = 11;
1718                     else                          sc->index = 13;
1719                 } else {
1720                     av_log(s, AV_LOG_ERROR, "error MXF D-10 only support 30/40/50 mbit/s\n");
1721                     return -1;
1722                 }
1723
1724                 mxf->edit_unit_byte_count = KAG_SIZE; // system element
1725                 mxf->edit_unit_byte_count += 16 + 4 + (uint64_t)st->codec->bit_rate *
1726                     mxf->time_base.num / (8*mxf->time_base.den);
1727                 mxf->edit_unit_byte_count += klv_fill_size(mxf->edit_unit_byte_count);
1728                 mxf->edit_unit_byte_count += 16 + 4 + 4 + spf->samples_per_frame[0]*8*4;
1729                 mxf->edit_unit_byte_count += klv_fill_size(mxf->edit_unit_byte_count);
1730             }
1731         } else if (st->codec->codec_type == AVMEDIA_TYPE_AUDIO) {
1732             if (st->codec->sample_rate != 48000) {
1733                 av_log(s, AV_LOG_ERROR, "only 48khz is implemented\n");
1734                 return -1;
1735             }
1736             avpriv_set_pts_info(st, 64, 1, st->codec->sample_rate);
1737             if (s->oformat == &ff_mxf_d10_muxer) {
1738                 if (st->index != 1) {
1739                     av_log(s, AV_LOG_ERROR, "MXF D-10 only support one audio track\n");
1740                     return -1;
1741                 }
1742                 if (st->codec->codec_id != AV_CODEC_ID_PCM_S16LE &&
1743                     st->codec->codec_id != AV_CODEC_ID_PCM_S24LE) {
1744                     av_log(s, AV_LOG_ERROR, "MXF D-10 only support 16 or 24 bits le audio\n");
1745                 }
1746                 sc->index = ((MXFStreamContext*)s->streams[0]->priv_data)->index + 1;
1747             } else
1748             mxf->slice_count = 1;
1749         }
1750
1751         if (!sc->index) {
1752             sc->index = mxf_get_essence_container_ul_index(st->codec->codec_id);
1753             if (sc->index == -1) {
1754                 av_log(s, AV_LOG_ERROR, "track %d: could not find essence container ul, "
1755                        "codec not currently supported in container\n", i);
1756                 return -1;
1757             }
1758         }
1759
1760         sc->codec_ul = &mxf_essence_container_uls[sc->index].codec_ul;
1761
1762         memcpy(sc->track_essence_element_key, mxf_essence_container_uls[sc->index].element_ul, 15);
1763         sc->track_essence_element_key[15] = present[sc->index];
1764         PRINT_KEY(s, "track essence element key", sc->track_essence_element_key);
1765
1766         if (!present[sc->index])
1767             mxf->essence_container_count++;
1768         present[sc->index]++;
1769     }
1770
1771     if (s->oformat == &ff_mxf_d10_muxer) {
1772         mxf->essence_container_count = 1;
1773     }
1774
1775     if (!(s->streams[0]->codec->flags & CODEC_FLAG_BITEXACT))
1776         mxf_gen_umid(s);
1777
1778     for (i = 0; i < s->nb_streams; i++) {
1779         MXFStreamContext *sc = s->streams[i]->priv_data;
1780         // update element count
1781         sc->track_essence_element_key[13] = present[sc->index];
1782         if (!memcmp(sc->track_essence_element_key, mxf_essence_container_uls[15].element_ul, 13)) // DV
1783             sc->order = (0x15 << 24) | AV_RB32(sc->track_essence_element_key+13);
1784         else
1785             sc->order = AV_RB32(sc->track_essence_element_key+12);
1786     }
1787
1788     if (t = av_dict_get(s->metadata, "creation_time", NULL, 0))
1789         timestamp = ff_iso8601_to_unix_time(t->value);
1790     if (timestamp)
1791         mxf->timestamp = mxf_parse_timestamp(timestamp);
1792     mxf->duration = -1;
1793
1794     mxf->timecode_track = av_mallocz(sizeof(*mxf->timecode_track));
1795     if (!mxf->timecode_track)
1796         return AVERROR(ENOMEM);
1797     mxf->timecode_track->priv_data = av_mallocz(sizeof(MXFStreamContext));
1798     if (!mxf->timecode_track->priv_data)
1799         return AVERROR(ENOMEM);
1800     mxf->timecode_track->index = -1;
1801
1802     if (!spf)
1803         spf = ff_mxf_get_samples_per_frame(s, (AVRational){ 1, 25 });
1804
1805     if (ff_audio_interleave_init(s, spf->samples_per_frame, mxf->time_base) < 0)
1806         return -1;
1807
1808     return 0;
1809 }
1810
1811 static const uint8_t system_metadata_pack_key[]        = { 0x06,0x0E,0x2B,0x34,0x02,0x05,0x01,0x01,0x0D,0x01,0x03,0x01,0x04,0x01,0x01,0x00 };
1812 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 };
1813
1814 static void mxf_write_system_item(AVFormatContext *s)
1815 {
1816     MXFContext *mxf = s->priv_data;
1817     AVIOContext *pb = s->pb;
1818     unsigned frame;
1819     uint32_t time_code;
1820
1821     frame = mxf->last_indexed_edit_unit + mxf->edit_units_count;
1822
1823     // write system metadata pack
1824     avio_write(pb, system_metadata_pack_key, 16);
1825     klv_encode_ber4_length(pb, 57);
1826     avio_w8(pb, 0x5c); // UL, user date/time stamp, picture and sound item present
1827     avio_w8(pb, 0x04); // content package rate
1828     avio_w8(pb, 0x00); // content package type
1829     avio_wb16(pb, 0x00); // channel handle
1830     avio_wb16(pb, (mxf->tc.start + frame) & 0xFFFF); // continuity count, supposed to overflow
1831     if (mxf->essence_container_count > 1)
1832         avio_write(pb, multiple_desc_ul, 16);
1833     else {
1834         MXFStreamContext *sc = s->streams[0]->priv_data;
1835         avio_write(pb, mxf_essence_container_uls[sc->index].container_ul, 16);
1836     }
1837     avio_w8(pb, 0);
1838     avio_wb64(pb, 0);
1839     avio_wb64(pb, 0); // creation date/time stamp
1840
1841     avio_w8(pb, 0x81); // SMPTE 12M time code
1842     time_code = av_timecode_get_smpte_from_framenum(&mxf->tc, frame);
1843     avio_wb32(pb, time_code);
1844     avio_wb32(pb, 0); // binary group data
1845     avio_wb64(pb, 0);
1846
1847     // write system metadata package set
1848     avio_write(pb, system_metadata_package_set_key, 16);
1849     klv_encode_ber4_length(pb, 35);
1850     avio_w8(pb, 0x83); // UMID
1851     avio_wb16(pb, 0x20);
1852     mxf_write_umid(s, 1);
1853 }
1854
1855 static void mxf_write_d10_video_packet(AVFormatContext *s, AVStream *st, AVPacket *pkt)
1856 {
1857     MXFContext *mxf = s->priv_data;
1858     AVIOContext *pb = s->pb;
1859     int packet_size = (uint64_t)st->codec->bit_rate*mxf->time_base.num /
1860         (8*mxf->time_base.den); // frame size
1861     int pad;
1862
1863     packet_size += 16 + 4;
1864     packet_size += klv_fill_size(packet_size);
1865
1866     klv_encode_ber4_length(pb, pkt->size);
1867     avio_write(pb, pkt->data, pkt->size);
1868
1869     // ensure CBR muxing by padding to correct video frame size
1870     pad = packet_size - pkt->size - 16 - 4;
1871     if (pad > 20) {
1872         avio_write(s->pb, klv_fill_key, 16);
1873         pad -= 16 + 4;
1874         klv_encode_ber4_length(s->pb, pad);
1875         for (; pad; pad--)
1876             avio_w8(s->pb, 0);
1877         av_assert1(!(avio_tell(s->pb) & (KAG_SIZE-1)));
1878     } else {
1879         av_log(s, AV_LOG_WARNING, "cannot fill d-10 video packet\n");
1880         for (; pad > 0; pad--)
1881             avio_w8(s->pb, 0);
1882     }
1883 }
1884
1885 static void mxf_write_d10_audio_packet(AVFormatContext *s, AVStream *st, AVPacket *pkt)
1886 {
1887     MXFContext *mxf = s->priv_data;
1888     AVIOContext *pb = s->pb;
1889     int frame_size = pkt->size / st->codec->block_align;
1890     uint8_t *samples = pkt->data;
1891     uint8_t *end = pkt->data + pkt->size;
1892     int i;
1893
1894     klv_encode_ber4_length(pb, 4 + frame_size*4*8);
1895
1896     avio_w8(pb, (frame_size == 1920 ? 0 : (mxf->edit_units_count-1) % 5 + 1));
1897     avio_wl16(pb, frame_size);
1898     avio_w8(pb, (1<<st->codec->channels)-1);
1899
1900     while (samples < end) {
1901         for (i = 0; i < st->codec->channels; i++) {
1902             uint32_t sample;
1903             if (st->codec->codec_id == AV_CODEC_ID_PCM_S24LE) {
1904                 sample = AV_RL24(samples)<< 4;
1905                 samples += 3;
1906             } else {
1907                 sample = AV_RL16(samples)<<12;
1908                 samples += 2;
1909             }
1910             avio_wl32(pb, sample | i);
1911         }
1912         for (; i < 8; i++)
1913             avio_wl32(pb, i);
1914     }
1915 }
1916
1917 static int mxf_write_packet(AVFormatContext *s, AVPacket *pkt)
1918 {
1919     MXFContext *mxf = s->priv_data;
1920     AVIOContext *pb = s->pb;
1921     AVStream *st = s->streams[pkt->stream_index];
1922     MXFStreamContext *sc = st->priv_data;
1923     MXFIndexEntry ie = {0};
1924
1925     if (!mxf->edit_unit_byte_count && !(mxf->edit_units_count % EDIT_UNITS_PER_BODY)) {
1926         mxf->index_entries = av_realloc(mxf->index_entries,
1927             (mxf->edit_units_count + EDIT_UNITS_PER_BODY)*sizeof(*mxf->index_entries));
1928         if (!mxf->index_entries) {
1929             av_log(s, AV_LOG_ERROR, "could not allocate index entries\n");
1930             return -1;
1931         }
1932     }
1933
1934     if (st->codec->codec_id == AV_CODEC_ID_MPEG2VIDEO) {
1935         if (!mxf_parse_mpeg2_frame(s, st, pkt, &ie)) {
1936             av_log(s, AV_LOG_ERROR, "could not get mpeg2 profile and level\n");
1937             return -1;
1938         }
1939     } else if (st->codec->codec_id == AV_CODEC_ID_DNXHD) {
1940         if (!mxf_parse_dnxhd_frame(s, st, pkt)) {
1941             av_log(s, AV_LOG_ERROR, "could not get dnxhd profile\n");
1942             return -1;
1943         }
1944     } else if (st->codec->codec_id == AV_CODEC_ID_DVVIDEO) {
1945         if (!mxf_parse_dv_frame(s, st, pkt)) {
1946             av_log(s, AV_LOG_ERROR, "could not get dv profile\n");
1947             return -1;
1948         }
1949     }
1950
1951     if (!mxf->header_written) {
1952         if (mxf->edit_unit_byte_count) {
1953             mxf_write_partition(s, 1, 2, header_open_partition_key, 1);
1954             mxf_write_klv_fill(s);
1955             mxf_write_index_table_segment(s);
1956         } else {
1957             mxf_write_partition(s, 0, 0, header_open_partition_key, 1);
1958         }
1959         mxf->header_written = 1;
1960     }
1961
1962     if (st->index == 0) {
1963         if (!mxf->edit_unit_byte_count &&
1964             (!mxf->edit_units_count || mxf->edit_units_count > EDIT_UNITS_PER_BODY) &&
1965             !(ie.flags & 0x33)) { // I frame, Gop start
1966             mxf_write_klv_fill(s);
1967             mxf_write_partition(s, 1, 2, body_partition_key, 0);
1968
1969             mxf_write_klv_fill(s);
1970             mxf_write_index_table_segment(s);
1971         }
1972
1973         mxf_write_klv_fill(s);
1974         mxf_write_system_item(s);
1975
1976         if (!mxf->edit_unit_byte_count) {
1977             mxf->index_entries[mxf->edit_units_count].offset = mxf->body_offset;
1978             mxf->index_entries[mxf->edit_units_count].flags = ie.flags;
1979             mxf->index_entries[mxf->edit_units_count].temporal_ref = ie.temporal_ref;
1980             mxf->body_offset += KAG_SIZE; // size of system element
1981         }
1982         mxf->edit_units_count++;
1983     } else if (!mxf->edit_unit_byte_count && st->index == 1) {
1984         mxf->index_entries[mxf->edit_units_count-1].slice_offset =
1985             mxf->body_offset - mxf->index_entries[mxf->edit_units_count-1].offset;
1986     }
1987
1988     mxf_write_klv_fill(s);
1989     avio_write(pb, sc->track_essence_element_key, 16); // write key
1990     if (s->oformat == &ff_mxf_d10_muxer) {
1991         if (st->codec->codec_type == AVMEDIA_TYPE_VIDEO)
1992             mxf_write_d10_video_packet(s, st, pkt);
1993         else
1994             mxf_write_d10_audio_packet(s, st, pkt);
1995     } else {
1996         klv_encode_ber4_length(pb, pkt->size); // write length
1997         avio_write(pb, pkt->data, pkt->size);
1998         mxf->body_offset += 16+4+pkt->size + klv_fill_size(16+4+pkt->size);
1999     }
2000
2001     avio_flush(pb);
2002
2003     return 0;
2004 }
2005
2006 static void mxf_write_random_index_pack(AVFormatContext *s)
2007 {
2008     MXFContext *mxf = s->priv_data;
2009     AVIOContext *pb = s->pb;
2010     uint64_t pos = avio_tell(pb);
2011     int i;
2012
2013     avio_write(pb, random_index_pack_key, 16);
2014     klv_encode_ber_length(pb, 28 + 12LL*mxf->body_partitions_count);
2015
2016     if (mxf->edit_unit_byte_count)
2017         avio_wb32(pb, 1); // BodySID of header partition
2018     else
2019         avio_wb32(pb, 0);
2020     avio_wb64(pb, 0); // offset of header partition
2021
2022     for (i = 0; i < mxf->body_partitions_count; i++) {
2023         avio_wb32(pb, 1); // BodySID
2024         avio_wb64(pb, mxf->body_partition_offset[i]);
2025     }
2026
2027     avio_wb32(pb, 0); // BodySID of footer partition
2028     avio_wb64(pb, mxf->footer_partition_offset);
2029
2030     avio_wb32(pb, avio_tell(pb) - pos + 4);
2031 }
2032
2033 static int mxf_write_footer(AVFormatContext *s)
2034 {
2035     MXFContext *mxf = s->priv_data;
2036     AVIOContext *pb = s->pb;
2037
2038     mxf->duration = mxf->last_indexed_edit_unit + mxf->edit_units_count;
2039
2040     mxf_write_klv_fill(s);
2041     mxf->footer_partition_offset = avio_tell(pb);
2042     if (mxf->edit_unit_byte_count) { // no need to repeat index
2043         mxf_write_partition(s, 0, 0, footer_partition_key, 0);
2044     } else {
2045         mxf_write_partition(s, 0, 2, footer_partition_key, 0);
2046
2047         mxf_write_klv_fill(s);
2048         mxf_write_index_table_segment(s);
2049     }
2050
2051     mxf_write_klv_fill(s);
2052     mxf_write_random_index_pack(s);
2053
2054     if (s->pb->seekable) {
2055         avio_seek(pb, 0, SEEK_SET);
2056         if (mxf->edit_unit_byte_count) {
2057             mxf_write_partition(s, 1, 2, header_closed_partition_key, 1);
2058             mxf_write_klv_fill(s);
2059             mxf_write_index_table_segment(s);
2060         } else {
2061             mxf_write_partition(s, 0, 0, header_closed_partition_key, 1);
2062         }
2063     }
2064
2065     ff_audio_interleave_close(s);
2066
2067     av_freep(&mxf->index_entries);
2068     av_freep(&mxf->body_partition_offset);
2069     av_freep(&mxf->timecode_track->priv_data);
2070     av_freep(&mxf->timecode_track);
2071
2072     mxf_free(s);
2073
2074     return 0;
2075 }
2076
2077 static int mxf_interleave_get_packet(AVFormatContext *s, AVPacket *out, AVPacket *pkt, int flush)
2078 {
2079     int i, stream_count = 0;
2080
2081     for (i = 0; i < s->nb_streams; i++)
2082         stream_count += !!s->streams[i]->last_in_packet_buffer;
2083
2084     if (stream_count && (s->nb_streams == stream_count || flush)) {
2085         AVPacketList *pktl = s->packet_buffer;
2086         if (s->nb_streams != stream_count) {
2087             AVPacketList *last = NULL;
2088             // find last packet in edit unit
2089             while (pktl) {
2090                 if (!stream_count || pktl->pkt.stream_index == 0)
2091                     break;
2092                 last = pktl;
2093                 pktl = pktl->next;
2094                 stream_count--;
2095             }
2096             // purge packet queue
2097             while (pktl) {
2098                 AVPacketList *next = pktl->next;
2099
2100                 if(s->streams[pktl->pkt.stream_index]->last_in_packet_buffer == pktl)
2101                     s->streams[pktl->pkt.stream_index]->last_in_packet_buffer= NULL;
2102                 av_free_packet(&pktl->pkt);
2103                 av_freep(&pktl);
2104                 pktl = next;
2105             }
2106             if (last)
2107                 last->next = NULL;
2108             else {
2109                 s->packet_buffer = NULL;
2110                 s->packet_buffer_end= NULL;
2111                 goto out;
2112             }
2113             pktl = s->packet_buffer;
2114         }
2115
2116         *out = pktl->pkt;
2117         av_dlog(s, "out st:%d dts:%"PRId64"\n", (*out).stream_index, (*out).dts);
2118         s->packet_buffer = pktl->next;
2119         if(s->streams[pktl->pkt.stream_index]->last_in_packet_buffer == pktl)
2120             s->streams[pktl->pkt.stream_index]->last_in_packet_buffer= NULL;
2121         if(!s->packet_buffer)
2122             s->packet_buffer_end= NULL;
2123         av_freep(&pktl);
2124         return 1;
2125     } else {
2126     out:
2127         av_init_packet(out);
2128         return 0;
2129     }
2130 }
2131
2132 static int mxf_compare_timestamps(AVFormatContext *s, AVPacket *next, AVPacket *pkt)
2133 {
2134     MXFStreamContext *sc  = s->streams[pkt ->stream_index]->priv_data;
2135     MXFStreamContext *sc2 = s->streams[next->stream_index]->priv_data;
2136
2137     return next->dts > pkt->dts ||
2138         (next->dts == pkt->dts && sc->order < sc2->order);
2139 }
2140
2141 static int mxf_interleave(AVFormatContext *s, AVPacket *out, AVPacket *pkt, int flush)
2142 {
2143     return ff_audio_rechunk_interleave(s, out, pkt, flush,
2144                                mxf_interleave_get_packet, mxf_compare_timestamps);
2145 }
2146
2147 AVOutputFormat ff_mxf_muxer = {
2148     .name              = "mxf",
2149     .long_name         = NULL_IF_CONFIG_SMALL("MXF (Material eXchange Format)"),
2150     .mime_type         = "application/mxf",
2151     .extensions        = "mxf",
2152     .priv_data_size    = sizeof(MXFContext),
2153     .audio_codec       = AV_CODEC_ID_PCM_S16LE,
2154     .video_codec       = AV_CODEC_ID_MPEG2VIDEO,
2155     .write_header      = mxf_write_header,
2156     .write_packet      = mxf_write_packet,
2157     .write_trailer     = mxf_write_footer,
2158     .flags             = AVFMT_NOTIMESTAMPS,
2159     .interleave_packet = mxf_interleave,
2160 };
2161
2162 AVOutputFormat ff_mxf_d10_muxer = {
2163     .name              = "mxf_d10",
2164     .long_name         = NULL_IF_CONFIG_SMALL("MXF (Material eXchange Format) D-10 Mapping"),
2165     .mime_type         = "application/mxf",
2166     .priv_data_size    = sizeof(MXFContext),
2167     .audio_codec       = AV_CODEC_ID_PCM_S16LE,
2168     .video_codec       = AV_CODEC_ID_MPEG2VIDEO,
2169     .write_header      = mxf_write_header,
2170     .write_packet      = mxf_write_packet,
2171     .write_trailer     = mxf_write_footer,
2172     .flags             = AVFMT_NOTIMESTAMPS,
2173     .interleave_packet = mxf_interleave,
2174 };