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 #include <inttypes.h>
  34 #include <math.h>
  35 #include <time.h>
  36
  37 #include "libavutil/opt.h"
  38 #include "libavutil/random_seed.h"
  39 #include "libavutil/timecode.h"
  40 #include "libavutil/avassert.h"
  41 #include "libavcodec/bytestream.h"
  42 #include "libavcodec/dnxhddata.h"
  43 #include "audiointerleave.h"
  44 #include "avformat.h"
  45 #include "internal.h"
  46 #include "mxf.h"
  47 #include "config.h"
  48
  49 extern AVOutputFormat ff_mxf_d10_muxer;
  50
  51 #define EDIT_UNITS_PER_BODY 250
  52 #define KAG_SIZE 512
  53
  54 typedef struct {
  55     int local_tag;
  56     UID uid;
  57 } MXFLocalTagPair;
  58
  59 typedef struct {
  60     uint8_t flags;
  61     uint64_t offset;
  62     unsigned slice_offset; ///< offset of audio slice
  63     uint16_t temporal_ref;
  64 } MXFIndexEntry;
  65
  66 typedef struct {
  67     AudioInterleaveContext aic;
  68     UID track_essence_element_key;
  69     int index;               ///< index in mxf_essence_container_uls table
  70     const UID *codec_ul;
  71     int order;               ///< interleaving order if dts are equal
  72     int interlaced;          ///< whether picture is interlaced
  73     int field_dominance;     ///< tff=1, bff=2
  74     int component_depth;
  75     int temporal_reordering;
  76     AVRational aspect_ratio; ///< display aspect ratio
  77     int closed_gop;          ///< gop is closed, used in mpeg-2 frame parsing
  78 } MXFStreamContext;
  79
  80 typedef struct {
  81     UID container_ul;
  82     UID element_ul;
  83     UID codec_ul;
  84     void (*write_desc)(AVFormatContext *, AVStream *);
  85 } MXFContainerEssenceEntry;
  86
  87 static const struct {
  88     enum AVCodecID id;
  89     int index;
  90 } mxf_essence_mappings[] = {
  91     { AV_CODEC_ID_MPEG2VIDEO, 0 },
  92     { AV_CODEC_ID_PCM_S24LE,  1 },
  93     { AV_CODEC_ID_PCM_S16LE,  1 },
  94     { AV_CODEC_ID_DVVIDEO,   15 },
  95     { AV_CODEC_ID_DNXHD,     24 },
  96     { AV_CODEC_ID_NONE }
  97 };
  98
  99 static void mxf_write_wav_desc(AVFormatContext *s, AVStream *st);
 100 static void mxf_write_aes3_desc(AVFormatContext *s, AVStream *st);
 101 static void mxf_write_mpegvideo_desc(AVFormatContext *s, AVStream *st);
 102 static void mxf_write_cdci_desc(AVFormatContext *s, AVStream *st);
 103 static void mxf_write_generic_sound_desc(AVFormatContext *s, AVStream *st);
 104
 105 static const MXFContainerEssenceEntry mxf_essence_container_uls[] = {
 106     { { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x02,0x0D,0x01,0x03,0x01,0x02,0x04,0x60,0x01 },
 107       { 0x06,0x0E,0x2B,0x34,0x01,0x02,0x01,0x01,0x0D,0x01,0x03,0x01,0x15,0x01,0x05,0x00 },
 108       { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x03,0x04,0x01,0x02,0x02,0x01,0x00,0x00,0x00 },
 109       mxf_write_mpegvideo_desc },
 110     { { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x0D,0x01,0x03,0x01,0x02,0x06,0x03,0x00 },
 111       { 0x06,0x0E,0x2B,0x34,0x01,0x02,0x01,0x01,0x0D,0x01,0x03,0x01,0x16,0x01,0x03,0x00 },
 112       { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x04,0x02,0x02,0x01,0x00,0x00,0x00,0x00 },
 113       mxf_write_aes3_desc },
 114     { { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x0D,0x01,0x03,0x01,0x02,0x06,0x01,0x00 },
 115       { 0x06,0x0E,0x2B,0x34,0x01,0x02,0x01,0x01,0x0D,0x01,0x03,0x01,0x16,0x01,0x01,0x00 },
 116       { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x04,0x02,0x02,0x01,0x00,0x00,0x00,0x00 },
 117       mxf_write_wav_desc },
 118     // D-10 625/50 PAL 50mb/s
 119     { { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x0D,0x01,0x03,0x01,0x02,0x01,0x01,0x01 },
 120       { 0x06,0x0E,0x2B,0x34,0x01,0x02,0x01,0x01,0x0D,0x01,0x03,0x01,0x05,0x01,0x01,0x00 },
 121       { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x04,0x01,0x02,0x02,0x01,0x02,0x01,0x01 },
 122       mxf_write_cdci_desc },
 123     { { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x0D,0x01,0x03,0x01,0x02,0x01,0x01,0x01 },
 124       { 0x06,0x0E,0x2B,0x34,0x01,0x02,0x01,0x01,0x0D,0x01,0x03,0x01,0x06,0x01,0x10,0x00 },
 125       { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x04,0x02,0x02,0x01,0x00,0x00,0x00,0x00 },
 126       mxf_write_generic_sound_desc },
 127     // D-10 525/60 NTSC 50mb/s
 128     { { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x0D,0x01,0x03,0x01,0x02,0x01,0x02,0x01 },
 129       { 0x06,0x0E,0x2B,0x34,0x01,0x02,0x01,0x01,0x0D,0x01,0x03,0x01,0x05,0x01,0x01,0x00 },
 130       { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x04,0x01,0x02,0x02,0x01,0x02,0x01,0x02 },
 131       mxf_write_cdci_desc },
 132     { { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x0D,0x01,0x03,0x01,0x02,0x01,0x02,0x01 },
 133       { 0x06,0x0E,0x2B,0x34,0x01,0x02,0x01,0x01,0x0D,0x01,0x03,0x01,0x06,0x01,0x10,0x00 },
 134       { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x04,0x02,0x02,0x01,0x00,0x00,0x00,0x00 },
 135       mxf_write_generic_sound_desc },
 136     // D-10 625/50 PAL 40mb/s
 137     { { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x0D,0x01,0x03,0x01,0x02,0x01,0x03,0x01 },
 138       { 0x06,0x0E,0x2B,0x34,0x01,0x02,0x01,0x01,0x0D,0x01,0x03,0x01,0x05,0x01,0x01,0x00 },
 139       { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x04,0x01,0x02,0x02,0x01,0x02,0x01,0x03 },
 140       mxf_write_cdci_desc },
 141     { { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x0D,0x01,0x03,0x01,0x02,0x01,0x03,0x01 },
 142       { 0x06,0x0E,0x2B,0x34,0x01,0x02,0x01,0x01,0x0D,0x01,0x03,0x01,0x06,0x01,0x10,0x00 },
 143       { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x04,0x02,0x02,0x01,0x00,0x00,0x00,0x00 },
 144       mxf_write_generic_sound_desc },
 145     // D-10 525/60 NTSC 40mb/s
 146     { { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x0D,0x01,0x03,0x01,0x02,0x01,0x04,0x01 },
 147       { 0x06,0x0E,0x2B,0x34,0x01,0x02,0x01,0x01,0x0D,0x01,0x03,0x01,0x05,0x01,0x01,0x00 },
 148       { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x04,0x01,0x02,0x02,0x01,0x02,0x01,0x04 },
 149       mxf_write_cdci_desc },
 150     { { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x0D,0x01,0x03,0x01,0x02,0x01,0x04,0x01 },
 151       { 0x06,0x0E,0x2B,0x34,0x01,0x02,0x01,0x01,0x0D,0x01,0x03,0x01,0x06,0x01,0x10,0x00 },
 152       { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x04,0x02,0x02,0x01,0x00,0x00,0x00,0x00 },
 153       mxf_write_generic_sound_desc },
 154     // D-10 625/50 PAL 30mb/s
 155     { { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x0D,0x01,0x03,0x01,0x02,0x01,0x05,0x01 },
 156       { 0x06,0x0E,0x2B,0x34,0x01,0x02,0x01,0x01,0x0D,0x01,0x03,0x01,0x05,0x01,0x01,0x00 },
 157       { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x04,0x01,0x02,0x02,0x01,0x02,0x01,0x05 },
 158       mxf_write_cdci_desc },
 159     { { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x0D,0x01,0x03,0x01,0x02,0x01,0x05,0x01 },
 160       { 0x06,0x0E,0x2B,0x34,0x01,0x02,0x01,0x01,0x0D,0x01,0x03,0x01,0x06,0x01,0x10,0x00 },
 161       { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x04,0x02,0x02,0x01,0x00,0x00,0x00,0x00 },
 162       mxf_write_generic_sound_desc },
 163     // D-10 525/60 NTSC 30mb/s
 164     { { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x0D,0x01,0x03,0x01,0x02,0x01,0x06,0x01 },
 165       { 0x06,0x0E,0x2B,0x34,0x01,0x02,0x01,0x01,0x0D,0x01,0x03,0x01,0x05,0x01,0x01,0x00 },
 166       { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x04,0x01,0x02,0x02,0x01,0x02,0x01,0x06 },
 167       mxf_write_cdci_desc },
 168     { { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x0D,0x01,0x03,0x01,0x02,0x01,0x06,0x01 },
 169       { 0x06,0x0E,0x2B,0x34,0x01,0x02,0x01,0x01,0x0D,0x01,0x03,0x01,0x06,0x01,0x10,0x00 },
 170       { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x04,0x02,0x02,0x01,0x00,0x00,0x00,0x00 },
 171       mxf_write_generic_sound_desc },
 172     // DV Unknown
 173     { { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x0D,0x01,0x03,0x01,0x02,0x02,0x7F,0x01 },
 174       { 0x06,0x0E,0x2B,0x34,0x01,0x02,0x01,0x01,0x0D,0x01,0x03,0x01,0x18,0x01,0x01,0x00 },
 175       { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x04,0x01,0x02,0x02,0x02,0x00,0x00,0x00 },
 176       mxf_write_cdci_desc },
 177     // DV25 525/60
 178     { { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x0D,0x01,0x03,0x01,0x02,0x02,0x40,0x01 },
 179       { 0x06,0x0E,0x2B,0x34,0x01,0x02,0x01,0x01,0x0D,0x01,0x03,0x01,0x18,0x01,0x01,0x00 },
 180       { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x04,0x01,0x02,0x02,0x02,0x02,0x01,0x00 },
 181       mxf_write_cdci_desc },
 182     // DV25 625/50
 183     { { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x0D,0x01,0x03,0x01,0x02,0x02,0x41,0x01 },
 184       { 0x06,0x0E,0x2B,0x34,0x01,0x02,0x01,0x01,0x0D,0x01,0x03,0x01,0x18,0x01,0x01,0x00 },
 185       { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x04,0x01,0x02,0x02,0x02,0x02,0x02,0x00 },
 186       mxf_write_cdci_desc },
 187     // DV50 525/60
 188     { { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x0D,0x01,0x03,0x01,0x02,0x02,0x50,0x01 },
 189       { 0x06,0x0E,0x2B,0x34,0x01,0x02,0x01,0x01,0x0D,0x01,0x03,0x01,0x18,0x01,0x01,0x00 },
 190       { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x04,0x01,0x02,0x02,0x02,0x02,0x03,0x00 },
 191       mxf_write_cdci_desc },
 192     // DV50 625/50
 193     { { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x0D,0x01,0x03,0x01,0x02,0x02,0x51,0x01 },
 194       { 0x06,0x0E,0x2B,0x34,0x01,0x02,0x01,0x01,0x0D,0x01,0x03,0x01,0x18,0x01,0x01,0x00 },
 195       { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x04,0x01,0x02,0x02,0x02,0x02,0x04,0x00 },
 196       mxf_write_cdci_desc },
 197     // DV100 1080/60
 198     { { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x0D,0x01,0x03,0x01,0x02,0x02,0x60,0x01 },
 199       { 0x06,0x0E,0x2B,0x34,0x01,0x02,0x01,0x01,0x0D,0x01,0x03,0x01,0x18,0x01,0x01,0x00 },
 200       { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x04,0x01,0x02,0x02,0x02,0x02,0x05,0x00 },
 201       mxf_write_cdci_desc },
 202     // DV100 1080/50
 203     { { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x0D,0x01,0x03,0x01,0x02,0x02,0x61,0x01 },
 204       { 0x06,0x0E,0x2B,0x34,0x01,0x02,0x01,0x01,0x0D,0x01,0x03,0x01,0x18,0x01,0x01,0x00 },
 205       { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x04,0x01,0x02,0x02,0x02,0x02,0x06,0x00 },
 206       mxf_write_cdci_desc },
 207     // DV100 720/60
 208     { { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x0D,0x01,0x03,0x01,0x02,0x02,0x62,0x01 },
 209       { 0x06,0x0E,0x2B,0x34,0x01,0x02,0x01,0x01,0x0D,0x01,0x03,0x01,0x18,0x01,0x01,0x00 },
 210       { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x04,0x01,0x02,0x02,0x02,0x02,0x07,0x00 },
 211       mxf_write_cdci_desc },
 212     // DV100 720/50
 213     { { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x0D,0x01,0x03,0x01,0x02,0x02,0x63,0x01 },
 214       { 0x06,0x0E,0x2B,0x34,0x01,0x02,0x01,0x01,0x0D,0x01,0x03,0x01,0x18,0x01,0x01,0x00 },
 215       { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x04,0x01,0x02,0x02,0x02,0x02,0x08,0x00 },
 216       mxf_write_cdci_desc },
 217     // DNxHD 1080p 10bit high
 218     { { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x0D,0x01,0x03,0x01,0x02,0x11,0x01,0x00 },
 219       { 0x06,0x0E,0x2B,0x34,0x01,0x02,0x01,0x01,0x0D,0x01,0x03,0x01,0x15,0x01,0x05,0x00 },
 220       { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x0A,0x04,0x01,0x02,0x02,0x71,0x01,0x00,0x00 },
 221       mxf_write_cdci_desc },
 222     // DNxHD 1080p 8bit medium
 223     { { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x0D,0x01,0x03,0x01,0x02,0x11,0x01,0x00 },
 224       { 0x06,0x0E,0x2B,0x34,0x01,0x02,0x01,0x01,0x0D,0x01,0x03,0x01,0x15,0x01,0x05,0x00 },
 225       { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x0A,0x04,0x01,0x02,0x02,0x71,0x03,0x00,0x00 },
 226       mxf_write_cdci_desc },
 227     // DNxHD 1080p 8bit high
 228     { { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x0D,0x01,0x03,0x01,0x02,0x11,0x01,0x00 },
 229       { 0x06,0x0E,0x2B,0x34,0x01,0x02,0x01,0x01,0x0D,0x01,0x03,0x01,0x15,0x01,0x05,0x00 },
 230       { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x0A,0x04,0x01,0x02,0x02,0x71,0x04,0x00,0x00 },
 231       mxf_write_cdci_desc },
 232     // DNxHD 1080i 10bit high
 233     { { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x0D,0x01,0x03,0x01,0x02,0x11,0x01,0x00 },
 234       { 0x06,0x0E,0x2B,0x34,0x01,0x02,0x01,0x01,0x0D,0x01,0x03,0x01,0x15,0x01,0x05,0x00 },
 235       { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x0A,0x04,0x01,0x02,0x02,0x71,0x07,0x00,0x00 },
 236       mxf_write_cdci_desc },
 237     // DNxHD 1080i 8bit medium
 238     { { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x0D,0x01,0x03,0x01,0x02,0x11,0x01,0x00 },
 239       { 0x06,0x0E,0x2B,0x34,0x01,0x02,0x01,0x01,0x0D,0x01,0x03,0x01,0x15,0x01,0x05,0x00 },
 240       { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x0A,0x04,0x01,0x02,0x02,0x71,0x08,0x00,0x00 },
 241       mxf_write_cdci_desc },
 242     // DNxHD 1080i 8bit high
 243     { { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x0D,0x01,0x03,0x01,0x02,0x11,0x01,0x00 },
 244       { 0x06,0x0E,0x2B,0x34,0x01,0x02,0x01,0x01,0x0D,0x01,0x03,0x01,0x15,0x01,0x05,0x00 },
 245       { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x0A,0x04,0x01,0x02,0x02,0x71,0x09,0x00,0x00 },
 246       mxf_write_cdci_desc },
 247     // DNxHD 720p 10bit
 248     { { 0x06,0x0e,0x2b,0x34,0x04,0x01,0x01,0x01,0x0d,0x01,0x03,0x01,0x02,0x11,0x01,0x00 },
 249       { 0x06,0x0e,0x2b,0x34,0x01,0x02,0x01,0x01,0x0d,0x01,0x03,0x01,0x15,0x01,0x05,0x00 },
 250       { 0x06,0x0e,0x2b,0x34,0x04,0x01,0x01,0x0A,0x04,0x01,0x02,0x02,0x71,0x10,0x00,0x00 },
 251       mxf_write_cdci_desc },
 252     // DNxHD 720p 8bit high
 253     { { 0x06,0x0e,0x2b,0x34,0x04,0x01,0x01,0x01,0x0d,0x01,0x03,0x01,0x02,0x11,0x01,0x00 },
 254       { 0x06,0x0e,0x2b,0x34,0x01,0x02,0x01,0x01,0x0d,0x01,0x03,0x01,0x15,0x01,0x05,0x00 },
 255       { 0x06,0x0e,0x2b,0x34,0x04,0x01,0x01,0x0A,0x04,0x01,0x02,0x02,0x71,0x11,0x00,0x00 },
 256       mxf_write_cdci_desc },
 257     // DNxHD 720p 8bit medium
 258     { { 0x06,0x0e,0x2b,0x34,0x04,0x01,0x01,0x01,0x0d,0x01,0x03,0x01,0x02,0x11,0x01,0x00 },
 259       { 0x06,0x0e,0x2b,0x34,0x01,0x02,0x01,0x01,0x0d,0x01,0x03,0x01,0x15,0x01,0x05,0x00 },
 260       { 0x06,0x0e,0x2b,0x34,0x04,0x01,0x01,0x0A,0x04,0x01,0x02,0x02,0x71,0x12,0x00,0x00 },
 261       mxf_write_cdci_desc },
 262     // DNxHD 720p 8bit low
 263     { { 0x06,0x0e,0x2b,0x34,0x04,0x01,0x01,0x01,0x0d,0x01,0x03,0x01,0x02,0x11,0x01,0x00 },
 264       { 0x06,0x0e,0x2b,0x34,0x01,0x02,0x01,0x01,0x0d,0x01,0x03,0x01,0x15,0x01,0x05,0x00 },
 265       { 0x06,0x0e,0x2b,0x34,0x04,0x01,0x01,0x0A,0x04,0x01,0x02,0x02,0x71,0x13,0x00,0x00 },
 266       mxf_write_cdci_desc },
 267     { { 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00 },
 268       { 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00 },
 269       { 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00 },
 270       NULL },
 271 };
 272
 273 typedef struct MXFContext {
 274     AVClass *av_class;
 275     int64_t footer_partition_offset;
 276     int essence_container_count;
 277     AVRational time_base;
 278     int header_written;
 279     MXFIndexEntry *index_entries;
 280     unsigned edit_units_count;
 281     uint64_t timestamp;   ///< timestamp, as year(16),month(8),day(8),hour(8),minutes(8),msec/4(8)
 282     uint8_t slice_count;  ///< index slice count minus 1 (1 if no audio, 0 otherwise)
 283     int last_indexed_edit_unit;
 284     uint64_t *body_partition_offset;
 285     unsigned body_partitions_count;
 286     int last_key_index;  ///< index of last key frame
 287     uint64_t duration;
 288     AVTimecode tc;       ///< timecode context
 289     AVStream *timecode_track;
 290     int timecode_base;       ///< rounded time code base (25 or 30)
 291     int edit_unit_byte_count; ///< fixed edit unit byte count
 292     uint64_t body_offset;
 293     uint32_t instance_number;
 294     uint8_t umid[16];        ///< unique material identifier
 295 } MXFContext;
 296
 297 static const uint8_t uuid_base[]            = { 0xAD,0xAB,0x44,0x24,0x2f,0x25,0x4d,0xc7,0x92,0xff,0x29,0xbd };
 298 static const uint8_t umid_ul[]              = { 0x06,0x0A,0x2B,0x34,0x01,0x01,0x01,0x05,0x01,0x01,0x0D,0x00,0x13 };
 299
 300 /**
 301  * complete key for operation pattern, partitions, and primer pack
 302  */
 303 static const uint8_t op1a_ul[]                     = { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x0D,0x01,0x02,0x01,0x01,0x01,0x09,0x00 };
 304 static const uint8_t footer_partition_key[]        = { 0x06,0x0E,0x2B,0x34,0x02,0x05,0x01,0x01,0x0D,0x01,0x02,0x01,0x01,0x04,0x04,0x00 }; // ClosedComplete
 305 static const uint8_t primer_pack_key[]             = { 0x06,0x0E,0x2B,0x34,0x02,0x05,0x01,0x01,0x0D,0x01,0x02,0x01,0x01,0x05,0x01,0x00 };
 306 static const uint8_t index_table_segment_key[]     = { 0x06,0x0E,0x2B,0x34,0x02,0x53,0x01,0x01,0x0d,0x01,0x02,0x01,0x01,0x10,0x01,0x00 };
 307 static const uint8_t random_index_pack_key[]       = { 0x06,0x0E,0x2B,0x34,0x02,0x05,0x01,0x01,0x0D,0x01,0x02,0x01,0x01,0x11,0x01,0x00 };
 308 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
 309 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
 310 static const uint8_t klv_fill_key[]                = { 0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x01,0x03,0x01,0x02,0x10,0x01,0x00,0x00,0x00 };
 311 static const uint8_t body_partition_key[]          = { 0x06,0x0E,0x2B,0x34,0x02,0x05,0x01,0x01,0x0D,0x01,0x02,0x01,0x01,0x03,0x04,0x00 }; // ClosedComplete
 312
 313 /**
 314  * partial key for header metadata
 315  */
 316 static const uint8_t header_metadata_key[]  = { 0x06,0x0E,0x2B,0x34,0x02,0x53,0x01,0x01,0x0D,0x01,0x01,0x01,0x01 };
 317 static const uint8_t multiple_desc_ul[]     = { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x03,0x0D,0x01,0x03,0x01,0x02,0x7F,0x01,0x00 };
 318
 319 /**
 320  * SMPTE RP210 http://www.smpte-ra.org/mdd/index.html
 321  */
 322 static const MXFLocalTagPair mxf_local_tag_batch[] = {
 323     // preface set
 324     { 0x3C0A, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x01,0x01,0x01,0x15,0x02,0x00,0x00,0x00,0x00}}, /* Instance UID */
 325     { 0x3B02, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x07,0x02,0x01,0x10,0x02,0x04,0x00,0x00}}, /* Last Modified Date */
 326     { 0x3B05, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x03,0x01,0x02,0x01,0x05,0x00,0x00,0x00}}, /* Version */
 327     { 0x3B06, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x06,0x01,0x01,0x04,0x06,0x04,0x00,0x00}}, /* Identifications reference */
 328     { 0x3B03, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x06,0x01,0x01,0x04,0x02,0x01,0x00,0x00}}, /* Content Storage reference */
 329     { 0x3B09, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x05,0x01,0x02,0x02,0x03,0x00,0x00,0x00,0x00}}, /* Operational Pattern UL */
 330     { 0x3B0A, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x05,0x01,0x02,0x02,0x10,0x02,0x01,0x00,0x00}}, /* Essence Containers UL batch */
 331     { 0x3B0B, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x05,0x01,0x02,0x02,0x10,0x02,0x02,0x00,0x00}}, /* DM Schemes UL batch */
 332     // Identification
 333     { 0x3C09, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x05,0x20,0x07,0x01,0x01,0x00,0x00,0x00}}, /* This Generation UID */
 334     { 0x3C01, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x05,0x20,0x07,0x01,0x02,0x01,0x00,0x00}}, /* Company Name */
 335     { 0x3C02, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x05,0x20,0x07,0x01,0x03,0x01,0x00,0x00}}, /* Product Name */
 336     { 0x3C04, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x05,0x20,0x07,0x01,0x05,0x01,0x00,0x00}}, /* Version String */
 337     { 0x3C05, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x05,0x20,0x07,0x01,0x07,0x00,0x00,0x00}}, /* Product ID */
 338     { 0x3C06, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x07,0x02,0x01,0x10,0x02,0x03,0x00,0x00}}, /* Modification Date */
 339     // Content Storage
 340     { 0x1901, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x06,0x01,0x01,0x04,0x05,0x01,0x00,0x00}}, /* Package strong reference batch */
 341     { 0x1902, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x06,0x01,0x01,0x04,0x05,0x02,0x00,0x00}}, /* Package strong reference batch */
 342     // Essence Container Data
 343     { 0x2701, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x06,0x01,0x01,0x06,0x01,0x00,0x00,0x00}}, /* Linked Package UID */
 344     { 0x3F07, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x04,0x01,0x03,0x04,0x04,0x00,0x00,0x00,0x00}}, /* BodySID */
 345     // Package
 346     { 0x4401, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x01,0x01,0x01,0x15,0x10,0x00,0x00,0x00,0x00}}, /* Package UID */
 347     { 0x4405, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x07,0x02,0x01,0x10,0x01,0x03,0x00,0x00}}, /* Package Creation Date */
 348     { 0x4404, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x07,0x02,0x01,0x10,0x02,0x05,0x00,0x00}}, /* Package Modified Date */
 349     { 0x4403, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x06,0x01,0x01,0x04,0x06,0x05,0x00,0x00}}, /* Tracks Strong reference array */
 350     { 0x4701, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x06,0x01,0x01,0x04,0x02,0x03,0x00,0x00}}, /* Descriptor */
 351     // Track
 352     { 0x4801, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x01,0x07,0x01,0x01,0x00,0x00,0x00,0x00}}, /* Track ID */
 353     { 0x4804, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x01,0x04,0x01,0x03,0x00,0x00,0x00,0x00}}, /* Track Number */
 354     { 0x4B01, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x05,0x30,0x04,0x05,0x00,0x00,0x00,0x00}}, /* Edit Rate */
 355     { 0x4B02, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x07,0x02,0x01,0x03,0x01,0x03,0x00,0x00}}, /* Origin */
 356     { 0x4803, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x06,0x01,0x01,0x04,0x02,0x04,0x00,0x00}}, /* Sequence reference */
 357     // Sequence
 358     { 0x0201, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x04,0x07,0x01,0x00,0x00,0x00,0x00,0x00}}, /* Data Definition UL */
 359     { 0x0202, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x07,0x02,0x02,0x01,0x01,0x03,0x00,0x00}}, /* Duration */
 360     { 0x1001, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x06,0x01,0x01,0x04,0x06,0x09,0x00,0x00}}, /* Structural Components reference array */
 361     // Source Clip
 362     { 0x1201, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x07,0x02,0x01,0x03,0x01,0x04,0x00,0x00}}, /* Start position */
 363     { 0x1101, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x06,0x01,0x01,0x03,0x01,0x00,0x00,0x00}}, /* SourcePackageID */
 364     { 0x1102, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x06,0x01,0x01,0x03,0x02,0x00,0x00,0x00}}, /* SourceTrackID */
 365     // Timecode Component
 366     { 0x1501, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x07,0x02,0x01,0x03,0x01,0x05,0x00,0x00}}, /* Start Time Code */
 367     { 0x1502, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x04,0x04,0x01,0x01,0x02,0x06,0x00,0x00}}, /* Rounded Time Code Base */
 368     { 0x1503, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x01,0x04,0x04,0x01,0x01,0x05,0x00,0x00,0x00}}, /* Drop Frame */
 369     // File Descriptor
 370     { 0x3F01, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x04,0x06,0x01,0x01,0x04,0x06,0x0B,0x00,0x00}}, /* Sub Descriptors reference array */
 371     { 0x3006, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x05,0x06,0x01,0x01,0x03,0x05,0x00,0x00,0x00}}, /* Linked Track ID */
 372     { 0x3001, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x01,0x04,0x06,0x01,0x01,0x00,0x00,0x00,0x00}}, /* SampleRate */
 373     { 0x3004, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x06,0x01,0x01,0x04,0x01,0x02,0x00,0x00}}, /* Essence Container */
 374     // Generic Picture Essence Descriptor
 375     { 0x320C, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x01,0x04,0x01,0x03,0x01,0x04,0x00,0x00,0x00}}, /* Frame Layout */
 376     { 0x320D, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x04,0x01,0x03,0x02,0x05,0x00,0x00,0x00}}, /* Video Line Map */
 377     { 0x3203, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x01,0x04,0x01,0x05,0x02,0x02,0x00,0x00,0x00}}, /* Stored Width */
 378     { 0x3202, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x01,0x04,0x01,0x05,0x02,0x01,0x00,0x00,0x00}}, /* Stored Height */
 379     { 0x3209, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x01,0x04,0x01,0x05,0x01,0x0C,0x00,0x00,0x00}}, /* Display Width */
 380     { 0x3208, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x01,0x04,0x01,0x05,0x01,0x0B,0x00,0x00,0x00}}, /* Display Height */
 381     { 0x320E, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x01,0x04,0x01,0x01,0x01,0x01,0x00,0x00,0x00}}, /* Aspect Ratio */
 382     { 0x3201, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x04,0x01,0x06,0x01,0x00,0x00,0x00,0x00}}, /* Picture Essence Coding */
 383     { 0x3212, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x04,0x01,0x03,0x01,0x06,0x00,0x00,0x00}}, /* Field Dominance (Opt) */
 384     // CDCI Picture Essence Descriptor
 385     { 0x3301, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x04,0x01,0x05,0x03,0x0A,0x00,0x00,0x00}}, /* Component Depth */
 386     { 0x3302, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x01,0x04,0x01,0x05,0x01,0x05,0x00,0x00,0x00}}, /* Horizontal Subsampling */
 387     // Generic Sound Essence Descriptor
 388     { 0x3D02, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x04,0x04,0x02,0x03,0x01,0x04,0x00,0x00,0x00}}, /* Locked/Unlocked */
 389     { 0x3D03, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x05,0x04,0x02,0x03,0x01,0x01,0x01,0x00,0x00}}, /* Audio sampling rate */
 390     { 0x3D07, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x05,0x04,0x02,0x01,0x01,0x04,0x00,0x00,0x00}}, /* ChannelCount */
 391     { 0x3D01, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x04,0x04,0x02,0x03,0x03,0x04,0x00,0x00,0x00}}, /* Quantization bits */
 392     { 0x3D06, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x04,0x02,0x04,0x02,0x00,0x00,0x00,0x00}}, /* Sound Essence Compression */
 393     // Index Table Segment
 394     { 0x3F0B, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x05,0x05,0x30,0x04,0x06,0x00,0x00,0x00,0x00}}, /* Index Edit Rate */
 395     { 0x3F0C, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x05,0x07,0x02,0x01,0x03,0x01,0x0A,0x00,0x00}}, /* Index Start Position */
 396     { 0x3F0D, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x05,0x07,0x02,0x02,0x01,0x01,0x02,0x00,0x00}}, /* Index Duration */
 397     { 0x3F05, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x04,0x04,0x06,0x02,0x01,0x00,0x00,0x00,0x00}}, /* Edit Unit Byte Count */
 398     { 0x3F06, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x04,0x01,0x03,0x04,0x05,0x00,0x00,0x00,0x00}}, /* IndexSID */
 399     { 0x3F08, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x04,0x04,0x04,0x04,0x01,0x01,0x00,0x00,0x00}}, /* Slice Count */
 400     { 0x3F09, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x05,0x04,0x04,0x04,0x01,0x06,0x00,0x00,0x00}}, /* Delta Entry Array */
 401     { 0x3F0A, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x05,0x04,0x04,0x04,0x02,0x05,0x00,0x00,0x00}}, /* Index Entry Array */
 402     // MPEG video Descriptor
 403     { 0x8000, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x05,0x04,0x01,0x06,0x02,0x01,0x0B,0x00,0x00}}, /* BitRate */
 404     { 0x8007, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x05,0x04,0x01,0x06,0x02,0x01,0x0A,0x00,0x00}}, /* ProfileAndLevel */
 405     // Wave Audio Essence Descriptor
 406     { 0x3D09, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x05,0x04,0x02,0x03,0x03,0x05,0x00,0x00,0x00}}, /* Average Bytes Per Second */
 407     { 0x3D0A, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x05,0x04,0x02,0x03,0x02,0x01,0x00,0x00,0x00}}, /* Block Align */
 408 };
 409
 410 static void mxf_write_uuid(AVIOContext *pb, enum MXFMetadataSetType type, int value)
 411 {
 412     avio_write(pb, uuid_base, 12);
 413     avio_wb16(pb, type);
 414     avio_wb16(pb, value);
 415 }
 416
 417 static void mxf_write_umid(AVFormatContext *s, int type)
 418 {
 419     MXFContext *mxf = s->priv_data;
 420     avio_write(s->pb, umid_ul, 13);
 421     avio_wb24(s->pb, mxf->instance_number);
 422     avio_write(s->pb, mxf->umid, 15);
 423     avio_w8(s->pb, type);
 424 }
 425
 426 static void mxf_write_refs_count(AVIOContext *pb, int ref_count)
 427 {
 428     avio_wb32(pb, ref_count);
 429     avio_wb32(pb, 16);
 430 }
 431
 432 static int klv_ber_length(uint64_t len)
 433 {
 434     if (len < 128)
 435         return 1;
 436     else
 437         return (av_log2(len) >> 3) + 2;
 438 }
 439
 440 static int klv_encode_ber_length(AVIOContext *pb, uint64_t len)
 441 {
 442     // Determine the best BER size
 443     int size;
 444     if (len < 128) {
 445         //short form
 446         avio_w8(pb, len);
 447         return 1;
 448     }
 449
 450     size = (av_log2(len) >> 3) + 1;
 451
 452     // long form
 453     avio_w8(pb, 0x80 + size);
 454     while(size) {
 455         size--;
 456         avio_w8(pb, len >> 8 * size & 0xff);
 457     }
 458     return 0;
 459 }
 460
 461 static void klv_encode_ber4_length(AVIOContext *pb, int len)
 462 {
 463     avio_w8(pb, 0x80 + 3);
 464     avio_wb24(pb, len);
 465 }
 466
 467 /*
 468  * Get essence container ul index
 469  */
 470 static int mxf_get_essence_container_ul_index(enum AVCodecID id)
 471 {
 472     int i;
 473     for (i = 0; mxf_essence_mappings[i].id; i++)
 474         if (mxf_essence_mappings[i].id == id)
 475             return mxf_essence_mappings[i].index;
 476     return -1;
 477 }
 478
 479 static void mxf_write_primer_pack(AVFormatContext *s)
 480 {
 481     AVIOContext *pb = s->pb;
 482     int local_tag_number, i = 0;
 483
 484     local_tag_number = FF_ARRAY_ELEMS(mxf_local_tag_batch);
 485
 486     avio_write(pb, primer_pack_key, 16);
 487     klv_encode_ber_length(pb, local_tag_number * 18 + 8);
 488
 489     avio_wb32(pb, local_tag_number); // local_tag num
 490     avio_wb32(pb, 18); // item size, always 18 according to the specs
 491
 492     for (i = 0; i < local_tag_number; i++) {
 493         avio_wb16(pb, mxf_local_tag_batch[i].local_tag);
 494         avio_write(pb, mxf_local_tag_batch[i].uid, 16);
 495     }
 496 }
 497
 498 static void mxf_write_local_tag(AVIOContext *pb, int size, int tag)
 499 {
 500     avio_wb16(pb, tag);
 501     avio_wb16(pb, size);
 502 }
 503
 504 static void mxf_write_metadata_key(AVIOContext *pb, unsigned int value)
 505 {
 506     avio_write(pb, header_metadata_key, 13);
 507     avio_wb24(pb, value);
 508 }
 509
 510 static void mxf_free(AVFormatContext *s)
 511 {
 512     int i;
 513
 514     for (i = 0; i < s->nb_streams; i++) {
 515         AVStream *st = s->streams[i];
 516         av_freep(&st->priv_data);
 517     }
 518 }
 519
 520 static const MXFCodecUL *mxf_get_data_definition_ul(int type)
 521 {
 522     const MXFCodecUL *uls = ff_mxf_data_definition_uls;
 523     while (uls->uid[0]) {
 524         if (type == uls->id)
 525             break;
 526         uls++;
 527     }
 528     return uls;
 529 }
 530
 531 //one EC -> one descriptor. N ECs -> MultipleDescriptor + N descriptors
 532 #define DESCRIPTOR_COUNT(essence_container_count) \
 533     (essence_container_count > 1 ? essence_container_count + 1 : essence_container_count)
 534
 535 static void mxf_write_essence_container_refs(AVFormatContext *s)
 536 {
 537     MXFContext *c = s->priv_data;
 538     AVIOContext *pb = s->pb;
 539     int i;
 540
 541     mxf_write_refs_count(pb, DESCRIPTOR_COUNT(c->essence_container_count));
 542     av_log(s,AV_LOG_DEBUG, "essence container count:%d\n", c->essence_container_count);
 543     for (i = 0; i < c->essence_container_count; i++) {
 544         MXFStreamContext *sc = s->streams[i]->priv_data;
 545         avio_write(pb, mxf_essence_container_uls[sc->index].container_ul, 16);
 546     }
 547
 548     if (c->essence_container_count > 1)
 549         avio_write(pb, multiple_desc_ul, 16);
 550 }
 551
 552 static void mxf_write_preface(AVFormatContext *s)
 553 {
 554     MXFContext *mxf = s->priv_data;
 555     AVIOContext *pb = s->pb;
 556
 557     mxf_write_metadata_key(pb, 0x012f00);
 558     PRINT_KEY(s, "preface key", pb->buf_ptr - 16);
 559     klv_encode_ber_length(pb, 130 + 16LL * DESCRIPTOR_COUNT(mxf->essence_container_count));
 560
 561     // write preface set uid
 562     mxf_write_local_tag(pb, 16, 0x3C0A);
 563     mxf_write_uuid(pb, Preface, 0);
 564     PRINT_KEY(s, "preface uid", pb->buf_ptr - 16);
 565
 566     // last modified date
 567     mxf_write_local_tag(pb, 8, 0x3B02);
 568     avio_wb64(pb, mxf->timestamp);
 569
 570     // write version
 571     mxf_write_local_tag(pb, 2, 0x3B05);
 572     avio_wb16(pb, 258); // v1.2
 573
 574     // write identification_refs
 575     mxf_write_local_tag(pb, 16 + 8, 0x3B06);
 576     mxf_write_refs_count(pb, 1);
 577     mxf_write_uuid(pb, Identification, 0);
 578
 579     // write content_storage_refs
 580     mxf_write_local_tag(pb, 16, 0x3B03);
 581     mxf_write_uuid(pb, ContentStorage, 0);
 582
 583     // operational pattern
 584     mxf_write_local_tag(pb, 16, 0x3B09);
 585     avio_write(pb, op1a_ul, 16);
 586
 587     // write essence_container_refs
 588     mxf_write_local_tag(pb, 8 + 16LL * DESCRIPTOR_COUNT(mxf->essence_container_count), 0x3B0A);
 589     mxf_write_essence_container_refs(s);
 590
 591     // write dm_scheme_refs
 592     mxf_write_local_tag(pb, 8, 0x3B0B);
 593     avio_wb64(pb, 0);
 594 }
 595
 596 /*
 597  * Write a local tag containing an ascii string as utf-16
 598  */
 599 static void mxf_write_local_tag_utf16(AVIOContext *pb, int tag, const char *value)
 600 {
 601     int i, size = strlen(value);
 602     mxf_write_local_tag(pb, size*2, tag);
 603     for (i = 0; i < size; i++)
 604         avio_wb16(pb, value[i]);
 605 }
 606
 607 static void mxf_write_identification(AVFormatContext *s)
 608 {
 609     MXFContext *mxf = s->priv_data;
 610     AVIOContext *pb = s->pb;
 611     const char *company = "FFmpeg";
 612     const char *product = "OP1a Muxer";
 613     const char *version;
 614     int length;
 615
 616     mxf_write_metadata_key(pb, 0x013000);
 617     PRINT_KEY(s, "identification key", pb->buf_ptr - 16);
 618
 619     version = s->streams[0]->codec->flags & CODEC_FLAG_BITEXACT ?
 620         "0.0.0" : AV_STRINGIFY(LIBAVFORMAT_VERSION);
 621     length = 84 + (strlen(company)+strlen(product)+strlen(version))*2; // utf-16
 622     klv_encode_ber_length(pb, length);
 623
 624     // write uid
 625     mxf_write_local_tag(pb, 16, 0x3C0A);
 626     mxf_write_uuid(pb, Identification, 0);
 627     PRINT_KEY(s, "identification uid", pb->buf_ptr - 16);
 628
 629     // write generation uid
 630     mxf_write_local_tag(pb, 16, 0x3C09);
 631     mxf_write_uuid(pb, Identification, 1);
 632
 633     mxf_write_local_tag_utf16(pb, 0x3C01, company); // Company Name
 634     mxf_write_local_tag_utf16(pb, 0x3C02, product); // Product Name
 635     mxf_write_local_tag_utf16(pb, 0x3C04, version); // Version String
 636
 637     // write product uid
 638     mxf_write_local_tag(pb, 16, 0x3C05);
 639     mxf_write_uuid(pb, Identification, 2);
 640
 641     // modification date
 642     mxf_write_local_tag(pb, 8, 0x3C06);
 643     avio_wb64(pb, mxf->timestamp);
 644 }
 645
 646 static void mxf_write_content_storage(AVFormatContext *s)
 647 {
 648     AVIOContext *pb = s->pb;
 649
 650     mxf_write_metadata_key(pb, 0x011800);
 651     PRINT_KEY(s, "content storage key", pb->buf_ptr - 16);
 652     klv_encode_ber_length(pb, 92);
 653
 654     // write uid
 655     mxf_write_local_tag(pb, 16, 0x3C0A);
 656     mxf_write_uuid(pb, ContentStorage, 0);
 657     PRINT_KEY(s, "content storage uid", pb->buf_ptr - 16);
 658
 659     // write package reference
 660     mxf_write_local_tag(pb, 16 * 2 + 8, 0x1901);
 661     mxf_write_refs_count(pb, 2);
 662     mxf_write_uuid(pb, MaterialPackage, 0);
 663     mxf_write_uuid(pb, SourcePackage, 0);
 664
 665     // write essence container data
 666     mxf_write_local_tag(pb, 8 + 16, 0x1902);
 667     mxf_write_refs_count(pb, 1);
 668     mxf_write_uuid(pb, EssenceContainerData, 0);
 669 }
 670
 671 static void mxf_write_track(AVFormatContext *s, AVStream *st, enum MXFMetadataSetType type)
 672 {
 673     MXFContext *mxf = s->priv_data;
 674     AVIOContext *pb = s->pb;
 675     MXFStreamContext *sc = st->priv_data;
 676
 677     mxf_write_metadata_key(pb, 0x013b00);
 678     PRINT_KEY(s, "track key", pb->buf_ptr - 16);
 679     klv_encode_ber_length(pb, 80);
 680
 681     // write track uid
 682     mxf_write_local_tag(pb, 16, 0x3C0A);
 683     mxf_write_uuid(pb, type == MaterialPackage ? Track : Track + TypeBottom, st->index);
 684     PRINT_KEY(s, "track uid", pb->buf_ptr - 16);
 685
 686     // write track id
 687     mxf_write_local_tag(pb, 4, 0x4801);
 688     avio_wb32(pb, st->index+2);
 689
 690     // write track number
 691     mxf_write_local_tag(pb, 4, 0x4804);
 692     if (type == MaterialPackage)
 693         avio_wb32(pb, 0); // track number of material package is 0
 694     else
 695         avio_write(pb, sc->track_essence_element_key + 12, 4);
 696
 697     mxf_write_local_tag(pb, 8, 0x4B01);
 698     avio_wb32(pb, mxf->time_base.den);
 699     avio_wb32(pb, mxf->time_base.num);
 700
 701     // write origin
 702     mxf_write_local_tag(pb, 8, 0x4B02);
 703     avio_wb64(pb, 0);
 704
 705     // write sequence refs
 706     mxf_write_local_tag(pb, 16, 0x4803);
 707     mxf_write_uuid(pb, type == MaterialPackage ? Sequence: Sequence + TypeBottom, st->index);
 708 }
 709
 710 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 };
 711
 712 static void mxf_write_common_fields(AVFormatContext *s, AVStream *st)
 713 {
 714     MXFContext *mxf = s->priv_data;
 715     AVIOContext *pb = s->pb;
 716
 717     // find data define uls
 718     mxf_write_local_tag(pb, 16, 0x0201);
 719     if (st == mxf->timecode_track)
 720         avio_write(pb, smpte_12m_timecode_track_data_ul, 16);
 721     else {
 722         const MXFCodecUL *data_def_ul = mxf_get_data_definition_ul(st->codec->codec_type);
 723         avio_write(pb, data_def_ul->uid, 16);
 724     }
 725
 726     // write duration
 727     mxf_write_local_tag(pb, 8, 0x0202);
 728     avio_wb64(pb, mxf->duration);
 729 }
 730
 731 static void mxf_write_sequence(AVFormatContext *s, AVStream *st, enum MXFMetadataSetType type)
 732 {
 733     MXFContext *mxf = s->priv_data;
 734     AVIOContext *pb = s->pb;
 735     enum MXFMetadataSetType component;
 736
 737     mxf_write_metadata_key(pb, 0x010f00);
 738     PRINT_KEY(s, "sequence key", pb->buf_ptr - 16);
 739     klv_encode_ber_length(pb, 80);
 740
 741     mxf_write_local_tag(pb, 16, 0x3C0A);
 742     mxf_write_uuid(pb, type == MaterialPackage ? Sequence: Sequence + TypeBottom, st->index);
 743
 744     PRINT_KEY(s, "sequence uid", pb->buf_ptr - 16);
 745     mxf_write_common_fields(s, st);
 746
 747     // write structural component
 748     mxf_write_local_tag(pb, 16 + 8, 0x1001);
 749     mxf_write_refs_count(pb, 1);
 750     if (st == mxf->timecode_track)
 751         component = TimecodeComponent;
 752     else
 753         component = SourceClip;
 754     if (type == SourcePackage)
 755         component += TypeBottom;
 756     mxf_write_uuid(pb, component, st->index);
 757 }
 758
 759 static void mxf_write_timecode_component(AVFormatContext *s, AVStream *st, enum MXFMetadataSetType type)
 760 {
 761     MXFContext *mxf = s->priv_data;
 762     AVIOContext *pb = s->pb;
 763
 764     mxf_write_metadata_key(pb, 0x011400);
 765     klv_encode_ber_length(pb, 75);
 766
 767     // UID
 768     mxf_write_local_tag(pb, 16, 0x3C0A);
 769     mxf_write_uuid(pb, type == MaterialPackage ? TimecodeComponent :
 770                    TimecodeComponent + TypeBottom, st->index);
 771
 772     mxf_write_common_fields(s, st);
 773
 774     // Start Time Code
 775     mxf_write_local_tag(pb, 8, 0x1501);
 776     avio_wb64(pb, mxf->tc.start);
 777
 778     // Rounded Time Code Base
 779     mxf_write_local_tag(pb, 2, 0x1502);
 780     avio_wb16(pb, mxf->timecode_base);
 781
 782     // Drop Frame
 783     mxf_write_local_tag(pb, 1, 0x1503);
 784     avio_w8(pb, !!(mxf->tc.flags & AV_TIMECODE_FLAG_DROPFRAME));
 785 }
 786
 787 static void mxf_write_structural_component(AVFormatContext *s, AVStream *st, enum MXFMetadataSetType type)
 788 {
 789     AVIOContext *pb = s->pb;
 790     int i;
 791
 792     mxf_write_metadata_key(pb, 0x011100);
 793     PRINT_KEY(s, "sturctural component key", pb->buf_ptr - 16);
 794     klv_encode_ber_length(pb, 108);
 795
 796     // write uid
 797     mxf_write_local_tag(pb, 16, 0x3C0A);
 798     mxf_write_uuid(pb, type == MaterialPackage ? SourceClip: SourceClip + TypeBottom, st->index);
 799
 800     PRINT_KEY(s, "structural component uid", pb->buf_ptr - 16);
 801     mxf_write_common_fields(s, st);
 802
 803     // write start_position
 804     mxf_write_local_tag(pb, 8, 0x1201);
 805     avio_wb64(pb, 0);
 806
 807     // write source package uid, end of the reference
 808     mxf_write_local_tag(pb, 32, 0x1101);
 809     if (type == SourcePackage) {
 810         for (i = 0; i < 4; i++)
 811             avio_wb64(pb, 0);
 812     } else
 813         mxf_write_umid(s, 1);
 814
 815     // write source track id
 816     mxf_write_local_tag(pb, 4, 0x1102);
 817     if (type == SourcePackage)
 818         avio_wb32(pb, 0);
 819     else
 820         avio_wb32(pb, st->index+2);
 821 }
 822
 823 static void mxf_write_multi_descriptor(AVFormatContext *s)
 824 {
 825     MXFContext *mxf = s->priv_data;
 826     AVIOContext *pb = s->pb;
 827     const uint8_t *ul;
 828     int i;
 829
 830     mxf_write_metadata_key(pb, 0x014400);
 831     PRINT_KEY(s, "multiple descriptor key", pb->buf_ptr - 16);
 832     klv_encode_ber_length(pb, 64 + 16LL * s->nb_streams);
 833
 834     mxf_write_local_tag(pb, 16, 0x3C0A);
 835     mxf_write_uuid(pb, MultipleDescriptor, 0);
 836     PRINT_KEY(s, "multi_desc uid", pb->buf_ptr - 16);
 837
 838     // write sample rate
 839     mxf_write_local_tag(pb, 8, 0x3001);
 840     avio_wb32(pb, mxf->time_base.den);
 841     avio_wb32(pb, mxf->time_base.num);
 842
 843     // write essence container ul
 844     mxf_write_local_tag(pb, 16, 0x3004);
 845     if (mxf->essence_container_count > 1)
 846         ul = multiple_desc_ul;
 847     else {
 848         MXFStreamContext *sc = s->streams[0]->priv_data;
 849         ul = mxf_essence_container_uls[sc->index].container_ul;
 850     }
 851     avio_write(pb, ul, 16);
 852
 853     // write sub descriptor refs
 854     mxf_write_local_tag(pb, s->nb_streams * 16 + 8, 0x3F01);
 855     mxf_write_refs_count(pb, s->nb_streams);
 856     for (i = 0; i < s->nb_streams; i++)
 857         mxf_write_uuid(pb, SubDescriptor, i);
 858 }
 859
 860 static void mxf_write_generic_desc(AVFormatContext *s, AVStream *st, const UID key, unsigned size)
 861 {
 862     MXFContext *mxf = s->priv_data;
 863     MXFStreamContext *sc = st->priv_data;
 864     AVIOContext *pb = s->pb;
 865
 866     avio_write(pb, key, 16);
 867     klv_encode_ber4_length(pb, size+20+8+12+20);
 868
 869     mxf_write_local_tag(pb, 16, 0x3C0A);
 870     mxf_write_uuid(pb, SubDescriptor, st->index);
 871
 872     mxf_write_local_tag(pb, 4, 0x3006);
 873     avio_wb32(pb, st->index+2);
 874
 875     mxf_write_local_tag(pb, 8, 0x3001);
 876     avio_wb32(pb, mxf->time_base.den);
 877     avio_wb32(pb, mxf->time_base.num);
 878
 879     mxf_write_local_tag(pb, 16, 0x3004);
 880     avio_write(pb, mxf_essence_container_uls[sc->index].container_ul, 16);
 881 }
 882
 883 static const UID mxf_mpegvideo_descriptor_key = { 0x06,0x0E,0x2B,0x34,0x02,0x53,0x01,0x01,0x0d,0x01,0x01,0x01,0x01,0x01,0x51,0x00 };
 884 static const UID mxf_wav_descriptor_key       = { 0x06,0x0E,0x2B,0x34,0x02,0x53,0x01,0x01,0x0d,0x01,0x01,0x01,0x01,0x01,0x48,0x00 };
 885 static const UID mxf_aes3_descriptor_key      = { 0x06,0x0E,0x2B,0x34,0x02,0x53,0x01,0x01,0x0d,0x01,0x01,0x01,0x01,0x01,0x47,0x00 };
 886 static const UID mxf_cdci_descriptor_key      = { 0x06,0x0E,0x2B,0x34,0x02,0x53,0x01,0x01,0x0D,0x01,0x01,0x01,0x01,0x01,0x28,0x00 };
 887 static const UID mxf_generic_sound_descriptor_key = { 0x06,0x0E,0x2B,0x34,0x02,0x53,0x01,0x01,0x0D,0x01,0x01,0x01,0x01,0x01,0x42,0x00 };
 888
 889 static void mxf_write_cdci_common(AVFormatContext *s, AVStream *st, const UID key, unsigned size)
 890 {
 891     MXFStreamContext *sc = st->priv_data;
 892     AVIOContext *pb = s->pb;
 893     int stored_height = (st->codec->height+15)/16*16;
 894     int display_height;
 895     int f1, f2;
 896     unsigned desc_size = size+8+8+8+8+8+8+5+16+sc->interlaced*4+12+20;
 897     if (sc->interlaced && sc->field_dominance)
 898         desc_size += 5;
 899
 900     mxf_write_generic_desc(s, st, key, desc_size);
 901
 902     mxf_write_local_tag(pb, 4, 0x3203);
 903     avio_wb32(pb, st->codec->width);
 904
 905     mxf_write_local_tag(pb, 4, 0x3202);
 906     avio_wb32(pb, stored_height>>sc->interlaced);
 907
 908     mxf_write_local_tag(pb, 4, 0x3209);
 909     avio_wb32(pb, st->codec->width);
 910
 911     if (st->codec->height == 608) // PAL + VBI
 912         display_height = 576;
 913     else if (st->codec->height == 512)  // NTSC + VBI
 914         display_height = 486;
 915     else
 916         display_height = st->codec->height;
 917
 918     mxf_write_local_tag(pb, 4, 0x3208);
 919     avio_wb32(pb, display_height>>sc->interlaced);
 920
 921     // component depth
 922     mxf_write_local_tag(pb, 4, 0x3301);
 923     avio_wb32(pb, sc->component_depth);
 924
 925     // horizontal subsampling
 926     mxf_write_local_tag(pb, 4, 0x3302);
 927     avio_wb32(pb, 2);
 928
 929     // frame layout
 930     mxf_write_local_tag(pb, 1, 0x320C);
 931     avio_w8(pb, sc->interlaced);
 932
 933     // video line map
 934     switch (st->codec->height) {
 935     case  576: f1 = 23; f2 = st->codec->codec_id == AV_CODEC_ID_DVVIDEO ? 335 : 336; break;
 936     case  608: f1 =  7; f2 = 320; break;
 937     case  480: f1 = 20; f2 = st->codec->codec_id == AV_CODEC_ID_DVVIDEO ? 285 : 283; break;
 938     case  512: f1 =  7; f2 = 270; break;
 939     case  720: f1 = 26; f2 =   0; break; // progressive
 940     case 1080: f1 = 21; f2 = 584; break;
 941     default:   f1 =  0; f2 =   0; break;
 942     }
 943
 944     if (!sc->interlaced) {
 945         f2  = 0;
 946         f1 *= 2;
 947     }
 948
 949     mxf_write_local_tag(pb, 12+sc->interlaced*4, 0x320D);
 950     avio_wb32(pb, sc->interlaced ? 2 : 1);
 951     avio_wb32(pb, 4);
 952     avio_wb32(pb, f1);
 953     if (sc->interlaced)
 954         avio_wb32(pb, f2);
 955
 956     mxf_write_local_tag(pb, 8, 0x320E);
 957     avio_wb32(pb, sc->aspect_ratio.num);
 958     avio_wb32(pb, sc->aspect_ratio.den);
 959
 960     mxf_write_local_tag(pb, 16, 0x3201);
 961     avio_write(pb, *sc->codec_ul, 16);
 962
 963     if (sc->interlaced && sc->field_dominance) {
 964         mxf_write_local_tag(pb, 1, 0x3212);
 965         avio_w8(pb, sc->field_dominance);
 966     }
 967
 968 }
 969
 970 static void mxf_write_cdci_desc(AVFormatContext *s, AVStream *st)
 971 {
 972     mxf_write_cdci_common(s, st, mxf_cdci_descriptor_key, 0);
 973 }
 974
 975 static void mxf_write_mpegvideo_desc(AVFormatContext *s, AVStream *st)
 976 {
 977     AVIOContext *pb = s->pb;
 978     int profile_and_level = (st->codec->profile<<4) | st->codec->level;
 979
 980     mxf_write_cdci_common(s, st, mxf_mpegvideo_descriptor_key, 8+5);
 981
 982     // bit rate
 983     mxf_write_local_tag(pb, 4, 0x8000);
 984     avio_wb32(pb, st->codec->bit_rate);
 985
 986     // profile and level
 987     mxf_write_local_tag(pb, 1, 0x8007);
 988     if (!st->codec->profile)
 989         profile_and_level |= 0x80; // escape bit
 990     avio_w8(pb, profile_and_level);
 991 }
 992
 993 static void mxf_write_generic_sound_common(AVFormatContext *s, AVStream *st, const UID key, unsigned size)
 994 {
 995     AVIOContext *pb = s->pb;
 996
 997     mxf_write_generic_desc(s, st, key, size+5+12+8+8);
 998
 999     // audio locked
1000     mxf_write_local_tag(pb, 1, 0x3D02);
1001     avio_w8(pb, 1);
1002
1003     // write audio sampling rate
1004     mxf_write_local_tag(pb, 8, 0x3D03);
1005     avio_wb32(pb, st->codec->sample_rate);
1006     avio_wb32(pb, 1);
1007
1008     mxf_write_local_tag(pb, 4, 0x3D07);
1009     avio_wb32(pb, st->codec->channels);
1010
1011     mxf_write_local_tag(pb, 4, 0x3D01);
1012     avio_wb32(pb, av_get_bits_per_sample(st->codec->codec_id));
1013 }
1014
1015 static void mxf_write_wav_common(AVFormatContext *s, AVStream *st, const UID key, unsigned size)
1016 {
1017     AVIOContext *pb = s->pb;
1018
1019     mxf_write_generic_sound_common(s, st, key, size+6+8);
1020
1021     mxf_write_local_tag(pb, 2, 0x3D0A);
1022     avio_wb16(pb, st->codec->block_align);
1023
1024     // avg bytes per sec
1025     mxf_write_local_tag(pb, 4, 0x3D09);
1026     avio_wb32(pb, st->codec->block_align*st->codec->sample_rate);
1027 }
1028
1029 static void mxf_write_wav_desc(AVFormatContext *s, AVStream *st)
1030 {
1031     mxf_write_wav_common(s, st, mxf_wav_descriptor_key, 0);
1032 }
1033
1034 static void mxf_write_aes3_desc(AVFormatContext *s, AVStream *st)
1035 {
1036     mxf_write_wav_common(s, st, mxf_aes3_descriptor_key, 0);
1037 }
1038
1039 static void mxf_write_generic_sound_desc(AVFormatContext *s, AVStream *st)
1040 {
1041     mxf_write_generic_sound_common(s, st, mxf_generic_sound_descriptor_key, 0);
1042 }
1043
1044 static void mxf_write_package(AVFormatContext *s, enum MXFMetadataSetType type)
1045 {
1046     MXFContext *mxf = s->priv_data;
1047     AVIOContext *pb = s->pb;
1048     int i, track_count = s->nb_streams+1;
1049
1050     if (type == MaterialPackage) {
1051         mxf_write_metadata_key(pb, 0x013600);
1052         PRINT_KEY(s, "Material Package key", pb->buf_ptr - 16);
1053         klv_encode_ber_length(pb, 92 + 16*track_count);
1054     } else {
1055         mxf_write_metadata_key(pb, 0x013700);
1056         PRINT_KEY(s, "Source Package key", pb->buf_ptr - 16);
1057         klv_encode_ber_length(pb, 112 + 16*track_count); // 20 bytes length for descriptor reference
1058     }
1059
1060     // write uid
1061     mxf_write_local_tag(pb, 16, 0x3C0A);
1062     mxf_write_uuid(pb, type, 0);
1063     av_log(s,AV_LOG_DEBUG, "package type:%d\n", type);
1064     PRINT_KEY(s, "package uid", pb->buf_ptr - 16);
1065
1066     // write package umid
1067     mxf_write_local_tag(pb, 32, 0x4401);
1068     mxf_write_umid(s, type == SourcePackage);
1069     PRINT_KEY(s, "package umid second part", pb->buf_ptr - 16);
1070
1071     // package creation date
1072     mxf_write_local_tag(pb, 8, 0x4405);
1073     avio_wb64(pb, mxf->timestamp);
1074
1075     // package modified date
1076     mxf_write_local_tag(pb, 8, 0x4404);
1077     avio_wb64(pb, mxf->timestamp);
1078
1079     // write track refs
1080     mxf_write_local_tag(pb, track_count*16 + 8, 0x4403);
1081     mxf_write_refs_count(pb, track_count);
1082     mxf_write_uuid(pb, type == MaterialPackage ? Track :
1083                    Track + TypeBottom, -1); // timecode track
1084     for (i = 0; i < s->nb_streams; i++)
1085         mxf_write_uuid(pb, type == MaterialPackage ? Track : Track + TypeBottom, i);
1086
1087     // write multiple descriptor reference
1088     if (type == SourcePackage) {
1089         mxf_write_local_tag(pb, 16, 0x4701);
1090         if (s->nb_streams > 1) {
1091             mxf_write_uuid(pb, MultipleDescriptor, 0);
1092             mxf_write_multi_descriptor(s);
1093         } else
1094             mxf_write_uuid(pb, SubDescriptor, 0);
1095     }
1096
1097     // write timecode track
1098     mxf_write_track(s, mxf->timecode_track, type);
1099     mxf_write_sequence(s, mxf->timecode_track, type);
1100     mxf_write_timecode_component(s, mxf->timecode_track, type);
1101
1102     for (i = 0; i < s->nb_streams; i++) {
1103         AVStream *st = s->streams[i];
1104         mxf_write_track(s, st, type);
1105         mxf_write_sequence(s, st, type);
1106         mxf_write_structural_component(s, st, type);
1107
1108         if (type == SourcePackage) {
1109             MXFStreamContext *sc = st->priv_data;
1110             mxf_essence_container_uls[sc->index].write_desc(s, st);
1111         }
1112     }
1113 }
1114
1115 static int mxf_write_essence_container_data(AVFormatContext *s)
1116 {
1117     AVIOContext *pb = s->pb;
1118
1119     mxf_write_metadata_key(pb, 0x012300);
1120     klv_encode_ber_length(pb, 72);
1121
1122     mxf_write_local_tag(pb, 16, 0x3C0A); // Instance UID
1123     mxf_write_uuid(pb, EssenceContainerData, 0);
1124
1125     mxf_write_local_tag(pb, 32, 0x2701); // Linked Package UID
1126     mxf_write_umid(s, 1);
1127
1128     mxf_write_local_tag(pb, 4, 0x3F07); // BodySID
1129     avio_wb32(pb, 1);
1130
1131     mxf_write_local_tag(pb, 4, 0x3F06); // IndexSID
1132     avio_wb32(pb, 2);
1133
1134     return 0;
1135 }
1136
1137 static int mxf_write_header_metadata_sets(AVFormatContext *s)
1138 {
1139     mxf_write_preface(s);
1140     mxf_write_identification(s);
1141     mxf_write_content_storage(s);
1142     mxf_write_package(s, MaterialPackage);
1143     mxf_write_package(s, SourcePackage);
1144     mxf_write_essence_container_data(s);
1145     return 0;
1146 }
1147
1148 static unsigned klv_fill_size(uint64_t size)
1149 {
1150     unsigned pad = KAG_SIZE - (size & (KAG_SIZE-1));
1151     if (pad < 20) // smallest fill item possible
1152         return pad + KAG_SIZE;
1153     else
1154         return pad & (KAG_SIZE-1);
1155 }
1156
1157 static void mxf_write_index_table_segment(AVFormatContext *s)
1158 {
1159     MXFContext *mxf = s->priv_data;
1160     AVIOContext *pb = s->pb;
1161     int i, j, temporal_reordering = 0;
1162     int key_index = mxf->last_key_index;
1163
1164     av_log(s, AV_LOG_DEBUG, "edit units count %d\n", mxf->edit_units_count);
1165
1166     if (!mxf->edit_units_count && !mxf->edit_unit_byte_count)
1167         return;
1168
1169     avio_write(pb, index_table_segment_key, 16);
1170
1171     if (mxf->edit_unit_byte_count) {
1172         klv_encode_ber_length(pb, 80);
1173     } else {
1174         klv_encode_ber_length(pb, 85 + 12+(s->nb_streams+1LL)*6 +
1175                               12+mxf->edit_units_count*(11+mxf->slice_count*4LL));
1176     }
1177
1178     // instance id
1179     mxf_write_local_tag(pb, 16, 0x3C0A);
1180     mxf_write_uuid(pb, IndexTableSegment, 0);
1181
1182     // index edit rate
1183     mxf_write_local_tag(pb, 8, 0x3F0B);
1184     avio_wb32(pb, mxf->time_base.den);
1185     avio_wb32(pb, mxf->time_base.num);
1186
1187     // index start position
1188     mxf_write_local_tag(pb, 8, 0x3F0C);
1189     avio_wb64(pb, mxf->last_indexed_edit_unit);
1190
1191     // index duration
1192     mxf_write_local_tag(pb, 8, 0x3F0D);
1193     if (mxf->edit_unit_byte_count)
1194         avio_wb64(pb, 0); // index table covers whole container
1195     else
1196         avio_wb64(pb, mxf->edit_units_count);
1197
1198     // edit unit byte count
1199     mxf_write_local_tag(pb, 4, 0x3F05);
1200     avio_wb32(pb, mxf->edit_unit_byte_count);
1201
1202     // index sid
1203     mxf_write_local_tag(pb, 4, 0x3F06);
1204     avio_wb32(pb, 2);
1205
1206     // body sid
1207     mxf_write_local_tag(pb, 4, 0x3F07);
1208     avio_wb32(pb, 1);
1209
1210     if (!mxf->edit_unit_byte_count) {
1211         // real slice count - 1
1212         mxf_write_local_tag(pb, 1, 0x3F08);
1213         avio_w8(pb, mxf->slice_count);
1214
1215         // delta entry array
1216         mxf_write_local_tag(pb, 8 + (s->nb_streams+1)*6, 0x3F09);
1217         avio_wb32(pb, s->nb_streams+1); // num of entries
1218         avio_wb32(pb, 6);               // size of one entry
1219         // write system item delta entry
1220         avio_w8(pb, 0);
1221         avio_w8(pb, 0); // slice entry
1222         avio_wb32(pb, 0); // element delta
1223         for (i = 0; i < s->nb_streams; i++) {
1224             AVStream *st = s->streams[i];
1225             MXFStreamContext *sc = st->priv_data;
1226             avio_w8(pb, sc->temporal_reordering);
1227             if (sc->temporal_reordering)
1228                 temporal_reordering = 1;
1229             if (i == 0) { // video track
1230                 avio_w8(pb, 0); // slice number
1231                 avio_wb32(pb, KAG_SIZE); // system item size including klv fill
1232             } else { // audio track
1233                 unsigned audio_frame_size = sc->aic.samples[0]*sc->aic.sample_size;
1234                 audio_frame_size += klv_fill_size(audio_frame_size);
1235                 avio_w8(pb, 1);
1236                 avio_wb32(pb, (i-1)*audio_frame_size); // element delta
1237             }
1238         }
1239
1240         mxf_write_local_tag(pb, 8 + mxf->edit_units_count*(11+mxf->slice_count*4), 0x3F0A);
1241         avio_wb32(pb, mxf->edit_units_count);  // num of entries
1242         avio_wb32(pb, 11+mxf->slice_count*4);  // size of one entry
1243
1244         for (i = 0; i < mxf->edit_units_count; i++) {
1245             int temporal_offset = 0;
1246
1247             if (!(mxf->index_entries[i].flags & 0x33)) { // I frame
1248                 mxf->last_key_index = key_index;
1249                 key_index = i;
1250             }
1251
1252             if (temporal_reordering) {
1253                 int pic_num_in_gop = i - key_index;
1254                 if (pic_num_in_gop != mxf->index_entries[i].temporal_ref) {
1255                     for (j = key_index; j < mxf->edit_units_count; j++) {
1256                         if (pic_num_in_gop == mxf->index_entries[j].temporal_ref)
1257                             break;
1258                     }
1259                     if (j == mxf->edit_units_count)
1260                         av_log(s, AV_LOG_WARNING, "missing frames\n");
1261                     temporal_offset = j - key_index - pic_num_in_gop;
1262                 }
1263             }
1264             avio_w8(pb, temporal_offset);
1265
1266             if ((mxf->index_entries[i].flags & 0x30) == 0x30) { // back and forward prediction
1267                 avio_w8(pb, mxf->last_key_index - i);
1268             } else {
1269                 avio_w8(pb, key_index - i); // key frame offset
1270                 if ((mxf->index_entries[i].flags & 0x20) == 0x20) // only forward
1271                     mxf->last_key_index = key_index;
1272             }
1273
1274             if (!(mxf->index_entries[i].flags & 0x33) && // I frame
1275                 mxf->index_entries[i].flags & 0x40 && !temporal_offset)
1276                 mxf->index_entries[i].flags |= 0x80; // random access
1277             avio_w8(pb, mxf->index_entries[i].flags);
1278             // stream offset
1279             avio_wb64(pb, mxf->index_entries[i].offset);
1280             if (s->nb_streams > 1)
1281                 avio_wb32(pb, mxf->index_entries[i].slice_offset);
1282         }
1283
1284         mxf->last_key_index = key_index - mxf->edit_units_count;
1285         mxf->last_indexed_edit_unit += mxf->edit_units_count;
1286         mxf->edit_units_count = 0;
1287     }
1288 }
1289
1290 static void mxf_write_klv_fill(AVFormatContext *s)
1291 {
1292     unsigned pad = klv_fill_size(avio_tell(s->pb));
1293     if (pad) {
1294         avio_write(s->pb, klv_fill_key, 16);
1295         pad -= 16 + 4;
1296         klv_encode_ber4_length(s->pb, pad);
1297         for (; pad; pad--)
1298             avio_w8(s->pb, 0);
1299         av_assert1(!(avio_tell(s->pb) & (KAG_SIZE-1)));
1300     }
1301 }
1302
1303 static void mxf_write_partition(AVFormatContext *s, int bodysid,
1304                                 int indexsid,
1305                                 const uint8_t *key, int write_metadata)
1306 {
1307     MXFContext *mxf = s->priv_data;
1308     AVIOContext *pb = s->pb;
1309     int64_t header_byte_count_offset;
1310     unsigned index_byte_count = 0;
1311     uint64_t partition_offset = avio_tell(pb);
1312
1313     if (!mxf->edit_unit_byte_count && mxf->edit_units_count)
1314         index_byte_count = 85 + 12+(s->nb_streams+1)*6 +
1315             12+mxf->edit_units_count*(11+mxf->slice_count*4);
1316     else if (mxf->edit_unit_byte_count && indexsid)
1317         index_byte_count = 80;
1318
1319     if (index_byte_count) {
1320         // add encoded ber length
1321         index_byte_count += 16 + klv_ber_length(index_byte_count);
1322         index_byte_count += klv_fill_size(index_byte_count);
1323     }
1324
1325     if (!memcmp(key, body_partition_key, 16)) {
1326         mxf->body_partition_offset =
1327             av_realloc(mxf->body_partition_offset,
1328                        (mxf->body_partitions_count+1)*
1329                        sizeof(*mxf->body_partition_offset));
1330         mxf->body_partition_offset[mxf->body_partitions_count++] = partition_offset;
1331     }
1332
1333     // write klv
1334     avio_write(pb, key, 16);
1335     klv_encode_ber_length(pb, 88 + 16LL * DESCRIPTOR_COUNT(mxf->essence_container_count));
1336
1337     // write partition value
1338     avio_wb16(pb, 1); // majorVersion
1339     avio_wb16(pb, 2); // minorVersion
1340     avio_wb32(pb, KAG_SIZE); // KAGSize
1341
1342     avio_wb64(pb, partition_offset); // ThisPartition
1343
1344     if (!memcmp(key, body_partition_key, 16) && mxf->body_partitions_count > 1)
1345         avio_wb64(pb, mxf->body_partition_offset[mxf->body_partitions_count-2]); // PreviousPartition
1346     else if (!memcmp(key, footer_partition_key, 16) && mxf->body_partitions_count)
1347         avio_wb64(pb, mxf->body_partition_offset[mxf->body_partitions_count-1]); // PreviousPartition
1348     else
1349         avio_wb64(pb, 0);
1350
1351     avio_wb64(pb, mxf->footer_partition_offset); // footerPartition
1352
1353     // set offset
1354     header_byte_count_offset = avio_tell(pb);
1355     avio_wb64(pb, 0); // headerByteCount, update later
1356
1357     // indexTable
1358     avio_wb64(pb, index_byte_count); // indexByteCount
1359     avio_wb32(pb, index_byte_count ? indexsid : 0); // indexSID
1360
1361     // BodyOffset
1362     if (bodysid && mxf->edit_units_count && mxf->body_partitions_count) {
1363         avio_wb64(pb, mxf->body_offset);
1364     } else
1365         avio_wb64(pb, 0);
1366
1367     avio_wb32(pb, bodysid); // bodySID
1368
1369     // operational pattern
1370     avio_write(pb, op1a_ul, 16);
1371
1372     // essence container
1373     mxf_write_essence_container_refs(s);
1374
1375     if (write_metadata) {
1376         // mark the start of the headermetadata and calculate metadata size
1377         int64_t pos, start;
1378         unsigned header_byte_count;
1379
1380         mxf_write_klv_fill(s);
1381         start = avio_tell(s->pb);
1382         mxf_write_primer_pack(s);
1383         mxf_write_header_metadata_sets(s);
1384         pos = avio_tell(s->pb);
1385         header_byte_count = pos - start + klv_fill_size(pos);
1386
1387         // update header_byte_count
1388         avio_seek(pb, header_byte_count_offset, SEEK_SET);
1389         avio_wb64(pb, header_byte_count);
1390         avio_seek(pb, pos, SEEK_SET);
1391     }
1392
1393     avio_flush(pb);
1394 }
1395
1396 static int mxf_parse_dnxhd_frame(AVFormatContext *s, AVStream *st,
1397 AVPacket *pkt)
1398 {
1399     MXFContext *mxf = s->priv_data;
1400     MXFStreamContext *sc = st->priv_data;
1401     int i, cid;
1402     uint8_t* header_cid;
1403     int frame_size = 0;
1404
1405     if (mxf->header_written)
1406         return 1;
1407
1408     if (pkt->size < 43)
1409         return -1;
1410
1411     header_cid = pkt->data + 0x28;
1412     cid = header_cid[0] << 24 | header_cid[1] << 16 | header_cid[2] << 8 | header_cid[3];
1413
1414     if ((frame_size = avpriv_dnxhd_get_frame_size(cid)) < 0)
1415         return -1;
1416
1417     switch (cid) {
1418     case 1235:
1419         sc->index = 24;
1420         sc->component_depth = 10;
1421         break;
1422     case 1237:
1423         sc->index = 25;
1424         break;
1425     case 1238:
1426         sc->index = 26;
1427         break;
1428     case 1241:
1429         sc->index = 27;
1430         sc->component_depth = 10;
1431         break;
1432     case 1242:
1433         sc->index = 28;
1434         break;
1435     case 1243:
1436         sc->index = 29;
1437         break;
1438     case 1250:
1439         sc->index = 30;
1440         sc->component_depth = 10;
1441         break;
1442     case 1251:
1443         sc->index = 31;
1444         break;
1445     case 1252:
1446         sc->index = 32;
1447         break;
1448     case 1253:
1449         sc->index = 33;
1450         break;
1451     default:
1452         return -1;
1453     }
1454
1455     sc->codec_ul = &mxf_essence_container_uls[sc->index].codec_ul;
1456     sc->aspect_ratio = (AVRational){ 16, 9 };
1457
1458     mxf->edit_unit_byte_count = KAG_SIZE;
1459     for (i = 0; i < s->nb_streams; i++) {
1460         AVStream *st = s->streams[i];
1461         MXFStreamContext *sc = st->priv_data;
1462         if (st->codec->codec_type == AVMEDIA_TYPE_AUDIO) {
1463             mxf->edit_unit_byte_count += 16 + 4 + sc->aic.samples[0]*sc->aic.sample_size;
1464             mxf->edit_unit_byte_count += klv_fill_size(mxf->edit_unit_byte_count);
1465         } else if (st->codec->codec_type == AVMEDIA_TYPE_VIDEO) {
1466             mxf->edit_unit_byte_count += 16 + 4 + frame_size;
1467             mxf->edit_unit_byte_count += klv_fill_size(mxf->edit_unit_byte_count);
1468         }
1469     }
1470
1471     return 1;
1472 }
1473
1474 static int mxf_parse_dv_frame(AVFormatContext *s, AVStream *st, AVPacket *pkt)
1475 {
1476     MXFContext *mxf = s->priv_data;
1477     MXFStreamContext *sc = st->priv_data;
1478     uint8_t *vs_pack, *vsc_pack;
1479     int i, ul_index, frame_size, stype, pal;
1480
1481     if (mxf->header_written)
1482         return 1;
1483
1484     // Check for minimal frame size
1485     if (pkt->size < 120000)
1486         return -1;
1487
1488     vs_pack  = pkt->data + 80*5 + 48;
1489     vsc_pack = pkt->data + 80*5 + 53;
1490     stype    = vs_pack[3] & 0x1f;
1491     pal      = (vs_pack[3] >> 5) & 0x1;
1492
1493     if ((vs_pack[2] & 0x07) == 0x02)
1494         sc->aspect_ratio = (AVRational){ 16, 9 };
1495     else
1496         sc->aspect_ratio = (AVRational){ 4, 3 };
1497
1498     sc->interlaced = (vsc_pack[3] >> 4) & 0x01;
1499     // TODO: fix dv encoder to set proper FF/FS value in VSC pack
1500     // and set field dominance accordingly
1501     // av_log(s, AV_LOG_DEBUG, "DV vsc pack ff/ss = %x\n", vsc_pack[2] >> 6);
1502
1503     switch (stype) {
1504     case 0x18: // DV100 720p
1505         ul_index = 6 + pal;
1506         frame_size = pal ? 288000 : 240000;
1507         if (sc->interlaced) {
1508             av_log(s, AV_LOG_ERROR, "source marked as interlaced but codec profile is progressive\n");
1509             sc->interlaced = 0;
1510         }
1511         break;
1512     case 0x14: // DV100 1080i
1513         ul_index = 4 + pal;
1514         frame_size = pal ? 576000 : 480000;
1515         break;
1516     case 0x04: // DV50
1517         ul_index = 2 + pal;
1518         frame_size = pal ? 288000 : 240000;
1519         break;
1520     default: // DV25
1521         ul_index = 0 + pal;
1522         frame_size = pal ? 144000 : 120000;
1523     }
1524
1525     sc->index = ul_index + 16;
1526     sc->codec_ul =  &mxf_essence_container_uls[sc->index].codec_ul;
1527
1528     mxf->edit_unit_byte_count = KAG_SIZE;
1529     for (i = 0; i < s->nb_streams; i++) {
1530         AVStream *st = s->streams[i];
1531         MXFStreamContext *sc = st->priv_data;
1532         if (st->codec->codec_type == AVMEDIA_TYPE_AUDIO) {
1533             mxf->edit_unit_byte_count += 16 + 4 + sc->aic.samples[0]*sc->aic.sample_size;
1534             mxf->edit_unit_byte_count += klv_fill_size(mxf->edit_unit_byte_count);
1535         } else if (st->codec->codec_type == AVMEDIA_TYPE_VIDEO) {
1536             mxf->edit_unit_byte_count += 16 + 4 + frame_size;
1537             mxf->edit_unit_byte_count += klv_fill_size(mxf->edit_unit_byte_count);
1538         }
1539     }
1540
1541     return 1;
1542 }
1543
1544 static const UID mxf_mpeg2_codec_uls[] = {
1545     { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x03,0x04,0x01,0x02,0x02,0x01,0x01,0x10,0x00 }, // MP-ML I-Frame
1546     { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x03,0x04,0x01,0x02,0x02,0x01,0x01,0x11,0x00 }, // MP-ML Long GOP
1547     { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x03,0x04,0x01,0x02,0x02,0x01,0x02,0x02,0x00 }, // 422P-ML I-Frame
1548     { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x03,0x04,0x01,0x02,0x02,0x01,0x02,0x03,0x00 }, // 422P-ML Long GOP
1549     { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x03,0x04,0x01,0x02,0x02,0x01,0x03,0x02,0x00 }, // MP-HL I-Frame
1550     { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x03,0x04,0x01,0x02,0x02,0x01,0x03,0x03,0x00 }, // MP-HL Long GOP
1551     { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x03,0x04,0x01,0x02,0x02,0x01,0x04,0x02,0x00 }, // 422P-HL I-Frame
1552     { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x03,0x04,0x01,0x02,0x02,0x01,0x04,0x03,0x00 }, // 422P-HL Long GOP
1553     { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x03,0x04,0x01,0x02,0x02,0x01,0x05,0x02,0x00 }, // MP@H-14 I-Frame
1554     { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x03,0x04,0x01,0x02,0x02,0x01,0x05,0x03,0x00 }, // MP@H-14 Long GOP
1555 };
1556
1557 static const UID *mxf_get_mpeg2_codec_ul(AVCodecContext *avctx)
1558 {
1559     int long_gop = avctx->gop_size > 1 || avctx->has_b_frames;
1560
1561     if (avctx->profile == 4) { // Main
1562         if (avctx->level == 8) // Main
1563             return &mxf_mpeg2_codec_uls[0+long_gop];
1564         else if (avctx->level == 4) // High
1565             return &mxf_mpeg2_codec_uls[4+long_gop];
1566         else if (avctx->level == 6) // High 14
1567             return &mxf_mpeg2_codec_uls[8+long_gop];
1568     } else if (avctx->profile == 0) { // 422
1569         if (avctx->level == 5) // Main
1570             return &mxf_mpeg2_codec_uls[2+long_gop];
1571         else if (avctx->level == 2) // High
1572             return &mxf_mpeg2_codec_uls[6+long_gop];
1573     }
1574     return NULL;
1575 }
1576
1577 static int mxf_parse_mpeg2_frame(AVFormatContext *s, AVStream *st,
1578                                  AVPacket *pkt, MXFIndexEntry *e)
1579 {
1580     MXFStreamContext *sc = st->priv_data;
1581     uint32_t c = -1;
1582     int i;
1583
1584     for(i = 0; i < pkt->size - 4; i++) {
1585         c = (c<<8) + pkt->data[i];
1586         if (c == 0x1b5) {
1587             if ((pkt->data[i+1] & 0xf0) == 0x10) { // seq ext
1588                 st->codec->profile = pkt->data[i+1] & 0x07;
1589                 st->codec->level   = pkt->data[i+2] >> 4;
1590             } else if (i + 5 < pkt->size && (pkt->data[i+1] & 0xf0) == 0x80) { // pict coding ext
1591                 sc->interlaced = !(pkt->data[i+5] & 0x80); // progressive frame
1592                 if (sc->interlaced)
1593                     sc->field_dominance = 1 + !(pkt->data[i+4] & 0x80); // top field first
1594                 break;
1595             }
1596         } else if (c == 0x1b8) { // gop
1597             if (pkt->data[i+4]>>6 & 0x01) { // closed
1598                 sc->closed_gop = 1;
1599                 if (e->flags & 0x40) // sequence header present
1600                     e->flags |= 0x80; // random access
1601             }
1602         } else if (c == 0x1b3) { // seq
1603             e->flags |= 0x40;
1604             switch ((pkt->data[i+4]>>4) & 0xf) {
1605             case 2:  sc->aspect_ratio = (AVRational){  4,  3}; break;
1606             case 3:  sc->aspect_ratio = (AVRational){ 16,  9}; break;
1607             case 4:  sc->aspect_ratio = (AVRational){221,100}; break;
1608             default:
1609                 av_reduce(&sc->aspect_ratio.num, &sc->aspect_ratio.den,
1610                           st->codec->width, st->codec->height, 1024*1024);
1611             }
1612         } else if (c == 0x100) { // pic
1613             int pict_type = (pkt->data[i+2]>>3) & 0x07;
1614             e->temporal_ref = (pkt->data[i+1]<<2) | (pkt->data[i+2]>>6);
1615             if (pict_type == 2) { // P frame
1616                 e->flags |= 0x22;
1617                 sc->closed_gop = 0; // reset closed gop, don't matter anymore
1618             } else if (pict_type == 3) { // B frame
1619                 if (sc->closed_gop)
1620                     e->flags |= 0x13; // only backward prediction
1621                 else
1622                     e->flags |= 0x33;
1623                 sc->temporal_reordering = -1;
1624             } else if (!pict_type) {
1625                 av_log(s, AV_LOG_ERROR, "error parsing mpeg2 frame\n");
1626                 return 0;
1627             }
1628         }
1629     }
1630     if (s->oformat != &ff_mxf_d10_muxer)
1631         sc->codec_ul = mxf_get_mpeg2_codec_ul(st->codec);
1632     return !!sc->codec_ul;
1633 }
1634
1635 static uint64_t mxf_parse_timestamp(time_t timestamp)
1636 {
1637     struct tm *time = gmtime(&timestamp);
1638     if (!time)
1639         return 0;
1640     return (uint64_t)(time->tm_year+1900) << 48 |
1641            (uint64_t)(time->tm_mon+1)     << 40 |
1642            (uint64_t) time->tm_mday       << 32 |
1643                       time->tm_hour       << 24 |
1644                       time->tm_min        << 16 |
1645                       time->tm_sec        << 8;
1646 }
1647
1648 static void mxf_gen_umid(AVFormatContext *s)
1649 {
1650     MXFContext *mxf = s->priv_data;
1651     uint32_t seed = av_get_random_seed();
1652     uint64_t umid = seed + 0x5294713400000000LL;
1653
1654     AV_WB64(mxf->umid  , umid);
1655     AV_WB64(mxf->umid+8, umid>>8);
1656
1657     mxf->instance_number = seed;
1658 }
1659
1660 static int mxf_write_header(AVFormatContext *s)
1661 {
1662     MXFContext *mxf = s->priv_data;
1663     int i, ret;
1664     uint8_t present[FF_ARRAY_ELEMS(mxf_essence_container_uls)] = {0};
1665     const MXFSamplesPerFrame *spf = NULL;
1666     AVDictionaryEntry *t;
1667     int64_t timestamp = 0;
1668     AVDictionaryEntry *tcr = av_dict_get(s->metadata, "timecode", NULL, 0);
1669
1670     if (!s->nb_streams)
1671         return -1;
1672
1673     for (i = 0; i < s->nb_streams; i++) {
1674         AVStream *st = s->streams[i];
1675         MXFStreamContext *sc = av_mallocz(sizeof(*sc));
1676         if (!sc)
1677             return AVERROR(ENOMEM);
1678         st->priv_data = sc;
1679
1680         if ((i == 0) ^ (st->codec->codec_type == AVMEDIA_TYPE_VIDEO)) {
1681             av_log(s, AV_LOG_ERROR, "there must be exactly one video stream and it must be the first one\n");
1682             return -1;
1683         }
1684
1685         if (st->codec->codec_type == AVMEDIA_TYPE_VIDEO) {
1686             AVRational rate, tbc = st->codec->time_base;
1687             // Default component depth to 8
1688             sc->component_depth = 8;
1689             mxf->timecode_base = (tbc.den + tbc.num/2) / tbc.num;
1690             spf = ff_mxf_get_samples_per_frame(s, tbc);
1691             if (!spf) {
1692                 av_log(s, AV_LOG_ERROR, "Unsupported video frame rate %d/%d\n",
1693                        tbc.den, tbc.num);
1694                 return AVERROR(EINVAL);
1695             }
1696             mxf->time_base = spf->time_base;
1697             rate = av_inv_q(mxf->time_base);
1698             avpriv_set_pts_info(st, 64, mxf->time_base.num, mxf->time_base.den);
1699             if (!tcr)
1700                 tcr = av_dict_get(st->metadata, "timecode", NULL, 0);
1701             if (tcr)
1702                 ret = av_timecode_init_from_string(&mxf->tc, rate, tcr->value, s);
1703             else
1704                 ret = av_timecode_init(&mxf->tc, rate, 0, 0, s);
1705             if (ret < 0)
1706                 return ret;
1707             if (s->oformat == &ff_mxf_d10_muxer) {
1708                 if (st->codec->bit_rate == 50000000) {
1709                     if (mxf->time_base.den == 25) sc->index = 3;
1710                     else                          sc->index = 5;
1711                 } else if (st->codec->bit_rate == 40000000) {
1712                     if (mxf->time_base.den == 25) sc->index = 7;
1713                     else                          sc->index = 9;
1714                 } else if (st->codec->bit_rate == 30000000) {
1715                     if (mxf->time_base.den == 25) sc->index = 11;
1716                     else                          sc->index = 13;
1717                 } else {
1718                     av_log(s, AV_LOG_ERROR, "error MXF D-10 only support 30/40/50 mbit/s\n");
1719                     return -1;
1720                 }
1721
1722                 mxf->edit_unit_byte_count = KAG_SIZE; // system element
1723                 mxf->edit_unit_byte_count += 16 + 4 + (uint64_t)st->codec->bit_rate *
1724                     mxf->time_base.num / (8*mxf->time_base.den);
1725                 mxf->edit_unit_byte_count += klv_fill_size(mxf->edit_unit_byte_count);
1726                 mxf->edit_unit_byte_count += 16 + 4 + 4 + spf->samples_per_frame[0]*8*4;
1727                 mxf->edit_unit_byte_count += klv_fill_size(mxf->edit_unit_byte_count);
1728             }
1729         } else if (st->codec->codec_type == AVMEDIA_TYPE_AUDIO) {
1730             if (st->codec->sample_rate != 48000) {
1731                 av_log(s, AV_LOG_ERROR, "only 48khz is implemented\n");
1732                 return -1;
1733             }
1734             avpriv_set_pts_info(st, 64, 1, st->codec->sample_rate);
1735             if (s->oformat == &ff_mxf_d10_muxer) {
1736                 if (st->index != 1) {
1737                     av_log(s, AV_LOG_ERROR, "MXF D-10 only support one audio track\n");
1738                     return -1;
1739                 }
1740                 if (st->codec->codec_id != AV_CODEC_ID_PCM_S16LE &&
1741                     st->codec->codec_id != AV_CODEC_ID_PCM_S24LE) {
1742                     av_log(s, AV_LOG_ERROR, "MXF D-10 only support 16 or 24 bits le audio\n");
1743                 }
1744                 sc->index = ((MXFStreamContext*)s->streams[0]->priv_data)->index + 1;
1745             } else
1746             mxf->slice_count = 1;
1747         }
1748
1749         if (!sc->index) {
1750             sc->index = mxf_get_essence_container_ul_index(st->codec->codec_id);
1751             if (sc->index == -1) {
1752                 av_log(s, AV_LOG_ERROR, "track %d: could not find essence container ul, "
1753                        "codec not currently supported in container\n", i);
1754                 return -1;
1755             }
1756         }
1757
1758         sc->codec_ul = &mxf_essence_container_uls[sc->index].codec_ul;
1759
1760         memcpy(sc->track_essence_element_key, mxf_essence_container_uls[sc->index].element_ul, 15);
1761         sc->track_essence_element_key[15] = present[sc->index];
1762         PRINT_KEY(s, "track essence element key", sc->track_essence_element_key);
1763
1764         if (!present[sc->index])
1765             mxf->essence_container_count++;
1766         present[sc->index]++;
1767     }
1768
1769     if (s->oformat == &ff_mxf_d10_muxer) {
1770         mxf->essence_container_count = 1;
1771     }
1772
1773     if (!(s->streams[0]->codec->flags & CODEC_FLAG_BITEXACT))
1774         mxf_gen_umid(s);
1775
1776     for (i = 0; i < s->nb_streams; i++) {
1777         MXFStreamContext *sc = s->streams[i]->priv_data;
1778         // update element count
1779         sc->track_essence_element_key[13] = present[sc->index];
1780         if (!memcmp(sc->track_essence_element_key, mxf_essence_container_uls[15].element_ul, 13)) // DV
1781             sc->order = (0x15 << 24) | AV_RB32(sc->track_essence_element_key+13);
1782         else
1783             sc->order = AV_RB32(sc->track_essence_element_key+12);
1784     }
1785
1786     if (t = av_dict_get(s->metadata, "creation_time", NULL, 0))
1787         timestamp = ff_iso8601_to_unix_time(t->value);
1788     if (timestamp)
1789         mxf->timestamp = mxf_parse_timestamp(timestamp);
1790     mxf->duration = -1;
1791
1792     mxf->timecode_track = av_mallocz(sizeof(*mxf->timecode_track));
1793     if (!mxf->timecode_track)
1794         return AVERROR(ENOMEM);
1795     mxf->timecode_track->priv_data = av_mallocz(sizeof(MXFStreamContext));
1796     if (!mxf->timecode_track->priv_data)
1797         return AVERROR(ENOMEM);
1798     mxf->timecode_track->index = -1;
1799
1800     if (!spf)
1801         spf = ff_mxf_get_samples_per_frame(s, (AVRational){ 1, 25 });
1802
1803     if (ff_audio_interleave_init(s, spf->samples_per_frame, mxf->time_base) < 0)
1804         return -1;
1805
1806     return 0;
1807 }
1808
1809 static const uint8_t system_metadata_pack_key[]        = { 0x06,0x0E,0x2B,0x34,0x02,0x05,0x01,0x01,0x0D,0x01,0x03,0x01,0x04,0x01,0x01,0x00 };
1810 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 };
1811
1812 static void mxf_write_system_item(AVFormatContext *s)
1813 {
1814     MXFContext *mxf = s->priv_data;
1815     AVIOContext *pb = s->pb;
1816     unsigned frame;
1817     uint32_t time_code;
1818
1819     frame = mxf->last_indexed_edit_unit + mxf->edit_units_count;
1820
1821     // write system metadata pack
1822     avio_write(pb, system_metadata_pack_key, 16);
1823     klv_encode_ber4_length(pb, 57);
1824     avio_w8(pb, 0x5c); // UL, user date/time stamp, picture and sound item present
1825     avio_w8(pb, 0x04); // content package rate
1826     avio_w8(pb, 0x00); // content package type
1827     avio_wb16(pb, 0x00); // channel handle
1828     avio_wb16(pb, (mxf->tc.start + frame) & 0xFFFF); // continuity count, supposed to overflow
1829     if (mxf->essence_container_count > 1)
1830         avio_write(pb, multiple_desc_ul, 16);
1831     else {
1832         MXFStreamContext *sc = s->streams[0]->priv_data;
1833         avio_write(pb, mxf_essence_container_uls[sc->index].container_ul, 16);
1834     }
1835     avio_w8(pb, 0);
1836     avio_wb64(pb, 0);
1837     avio_wb64(pb, 0); // creation date/time stamp
1838
1839     avio_w8(pb, 0x81); // SMPTE 12M time code
1840     time_code = av_timecode_get_smpte_from_framenum(&mxf->tc, frame);
1841     avio_wb32(pb, time_code);
1842     avio_wb32(pb, 0); // binary group data
1843     avio_wb64(pb, 0);
1844
1845     // write system metadata package set
1846     avio_write(pb, system_metadata_package_set_key, 16);
1847     klv_encode_ber4_length(pb, 35);
1848     avio_w8(pb, 0x83); // UMID
1849     avio_wb16(pb, 0x20);
1850     mxf_write_umid(s, 1);
1851 }
1852
1853 static void mxf_write_d10_video_packet(AVFormatContext *s, AVStream *st, AVPacket *pkt)
1854 {
1855     MXFContext *mxf = s->priv_data;
1856     AVIOContext *pb = s->pb;
1857     int packet_size = (uint64_t)st->codec->bit_rate*mxf->time_base.num /
1858         (8*mxf->time_base.den); // frame size
1859     int pad;
1860
1861     packet_size += 16 + 4;
1862     packet_size += klv_fill_size(packet_size);
1863
1864     klv_encode_ber4_length(pb, pkt->size);
1865     avio_write(pb, pkt->data, pkt->size);
1866
1867     // ensure CBR muxing by padding to correct video frame size
1868     pad = packet_size - pkt->size - 16 - 4;
1869     if (pad > 20) {
1870         avio_write(s->pb, klv_fill_key, 16);
1871         pad -= 16 + 4;
1872         klv_encode_ber4_length(s->pb, pad);
1873         for (; pad; pad--)
1874             avio_w8(s->pb, 0);
1875         av_assert1(!(avio_tell(s->pb) & (KAG_SIZE-1)));
1876     } else {
1877         av_log(s, AV_LOG_WARNING, "cannot fill d-10 video packet\n");
1878         for (; pad > 0; pad--)
1879             avio_w8(s->pb, 0);
1880     }
1881 }
1882
1883 static void mxf_write_d10_audio_packet(AVFormatContext *s, AVStream *st, AVPacket *pkt)
1884 {
1885     MXFContext *mxf = s->priv_data;
1886     AVIOContext *pb = s->pb;
1887     int frame_size = pkt->size / st->codec->block_align;
1888     uint8_t *samples = pkt->data;
1889     uint8_t *end = pkt->data + pkt->size;
1890     int i;
1891
1892     klv_encode_ber4_length(pb, 4 + frame_size*4*8);
1893
1894     avio_w8(pb, (frame_size == 1920 ? 0 : (mxf->edit_units_count-1) % 5 + 1));
1895     avio_wl16(pb, frame_size);
1896     avio_w8(pb, (1<<st->codec->channels)-1);
1897
1898     while (samples < end) {
1899         for (i = 0; i < st->codec->channels; i++) {
1900             uint32_t sample;
1901             if (st->codec->codec_id == AV_CODEC_ID_PCM_S24LE) {
1902                 sample = AV_RL24(samples)<< 4;
1903                 samples += 3;
1904             } else {
1905                 sample = AV_RL16(samples)<<12;
1906                 samples += 2;
1907             }
1908             avio_wl32(pb, sample | i);
1909         }
1910         for (; i < 8; i++)
1911             avio_wl32(pb, i);
1912     }
1913 }
1914
1915 static int mxf_write_packet(AVFormatContext *s, AVPacket *pkt)
1916 {
1917     MXFContext *mxf = s->priv_data;
1918     AVIOContext *pb = s->pb;
1919     AVStream *st = s->streams[pkt->stream_index];
1920     MXFStreamContext *sc = st->priv_data;
1921     MXFIndexEntry ie = {0};
1922
1923     if (!mxf->edit_unit_byte_count && !(mxf->edit_units_count % EDIT_UNITS_PER_BODY)) {
1924         mxf->index_entries = av_realloc(mxf->index_entries,
1925             (mxf->edit_units_count + EDIT_UNITS_PER_BODY)*sizeof(*mxf->index_entries));
1926         if (!mxf->index_entries) {
1927             av_log(s, AV_LOG_ERROR, "could not allocate index entries\n");
1928             return -1;
1929         }
1930     }
1931
1932     if (st->codec->codec_id == AV_CODEC_ID_MPEG2VIDEO) {
1933         if (!mxf_parse_mpeg2_frame(s, st, pkt, &ie)) {
1934             av_log(s, AV_LOG_ERROR, "could not get mpeg2 profile and level\n");
1935             return -1;
1936         }
1937     } else if (st->codec->codec_id == AV_CODEC_ID_DNXHD) {
1938         if (!mxf_parse_dnxhd_frame(s, st, pkt)) {
1939             av_log(s, AV_LOG_ERROR, "could not get dnxhd profile\n");
1940             return -1;
1941         }
1942     } else if (st->codec->codec_id == AV_CODEC_ID_DVVIDEO) {
1943         if (!mxf_parse_dv_frame(s, st, pkt)) {
1944             av_log(s, AV_LOG_ERROR, "could not get dv profile\n");
1945             return -1;
1946         }
1947     }
1948
1949     if (!mxf->header_written) {
1950         if (mxf->edit_unit_byte_count) {
1951             mxf_write_partition(s, 1, 2, header_open_partition_key, 1);
1952             mxf_write_klv_fill(s);
1953             mxf_write_index_table_segment(s);
1954         } else {
1955             mxf_write_partition(s, 0, 0, header_open_partition_key, 1);
1956         }
1957         mxf->header_written = 1;
1958     }
1959
1960     if (st->index == 0) {
1961         if (!mxf->edit_unit_byte_count &&
1962             (!mxf->edit_units_count || mxf->edit_units_count > EDIT_UNITS_PER_BODY) &&
1963             !(ie.flags & 0x33)) { // I frame, Gop start
1964             mxf_write_klv_fill(s);
1965             mxf_write_partition(s, 1, 2, body_partition_key, 0);
1966
1967             mxf_write_klv_fill(s);
1968             mxf_write_index_table_segment(s);
1969         }
1970
1971         mxf_write_klv_fill(s);
1972         mxf_write_system_item(s);
1973
1974         if (!mxf->edit_unit_byte_count) {
1975             mxf->index_entries[mxf->edit_units_count].offset = mxf->body_offset;
1976             mxf->index_entries[mxf->edit_units_count].flags = ie.flags;
1977             mxf->index_entries[mxf->edit_units_count].temporal_ref = ie.temporal_ref;
1978             mxf->body_offset += KAG_SIZE; // size of system element
1979         }
1980         mxf->edit_units_count++;
1981     } else if (!mxf->edit_unit_byte_count && st->index == 1) {
1982         mxf->index_entries[mxf->edit_units_count-1].slice_offset =
1983             mxf->body_offset - mxf->index_entries[mxf->edit_units_count-1].offset;
1984     }
1985
1986     mxf_write_klv_fill(s);
1987     avio_write(pb, sc->track_essence_element_key, 16); // write key
1988     if (s->oformat == &ff_mxf_d10_muxer) {
1989         if (st->codec->codec_type == AVMEDIA_TYPE_VIDEO)
1990             mxf_write_d10_video_packet(s, st, pkt);
1991         else
1992             mxf_write_d10_audio_packet(s, st, pkt);
1993     } else {
1994         klv_encode_ber4_length(pb, pkt->size); // write length
1995         avio_write(pb, pkt->data, pkt->size);
1996         mxf->body_offset += 16+4+pkt->size + klv_fill_size(16+4+pkt->size);
1997     }
1998
1999     avio_flush(pb);
2000
2001     return 0;
2002 }
2003
2004 static void mxf_write_random_index_pack(AVFormatContext *s)
2005 {
2006     MXFContext *mxf = s->priv_data;
2007     AVIOContext *pb = s->pb;
2008     uint64_t pos = avio_tell(pb);
2009     int i;
2010
2011     avio_write(pb, random_index_pack_key, 16);
2012     klv_encode_ber_length(pb, 28 + 12LL*mxf->body_partitions_count);
2013
2014     if (mxf->edit_unit_byte_count)
2015         avio_wb32(pb, 1); // BodySID of header partition
2016     else
2017         avio_wb32(pb, 0);
2018     avio_wb64(pb, 0); // offset of header partition
2019
2020     for (i = 0; i < mxf->body_partitions_count; i++) {
2021         avio_wb32(pb, 1); // BodySID
2022         avio_wb64(pb, mxf->body_partition_offset[i]);
2023     }
2024
2025     avio_wb32(pb, 0); // BodySID of footer partition
2026     avio_wb64(pb, mxf->footer_partition_offset);
2027
2028     avio_wb32(pb, avio_tell(pb) - pos + 4);
2029 }
2030
2031 static int mxf_write_footer(AVFormatContext *s)
2032 {
2033     MXFContext *mxf = s->priv_data;
2034     AVIOContext *pb = s->pb;
2035
2036     mxf->duration = mxf->last_indexed_edit_unit + mxf->edit_units_count;
2037
2038     mxf_write_klv_fill(s);
2039     mxf->footer_partition_offset = avio_tell(pb);
2040     if (mxf->edit_unit_byte_count) { // no need to repeat index
2041         mxf_write_partition(s, 0, 0, footer_partition_key, 0);
2042     } else {
2043         mxf_write_partition(s, 0, 2, footer_partition_key, 0);
2044
2045         mxf_write_klv_fill(s);
2046         mxf_write_index_table_segment(s);
2047     }
2048
2049     mxf_write_klv_fill(s);
2050     mxf_write_random_index_pack(s);
2051
2052     if (s->pb->seekable) {
2053         avio_seek(pb, 0, SEEK_SET);
2054         if (mxf->edit_unit_byte_count) {
2055             mxf_write_partition(s, 1, 2, header_closed_partition_key, 1);
2056             mxf_write_klv_fill(s);
2057             mxf_write_index_table_segment(s);
2058         } else {
2059             mxf_write_partition(s, 0, 0, header_closed_partition_key, 1);
2060         }
2061     }
2062
2063     ff_audio_interleave_close(s);
2064
2065     av_freep(&mxf->index_entries);
2066     av_freep(&mxf->body_partition_offset);
2067     av_freep(&mxf->timecode_track->priv_data);
2068     av_freep(&mxf->timecode_track);
2069
2070     mxf_free(s);
2071
2072     return 0;
2073 }
2074
2075 static int mxf_interleave_get_packet(AVFormatContext *s, AVPacket *out, AVPacket *pkt, int flush)
2076 {
2077     int i, stream_count = 0;
2078
2079     for (i = 0; i < s->nb_streams; i++)
2080         stream_count += !!s->streams[i]->last_in_packet_buffer;
2081
2082     if (stream_count && (s->nb_streams == stream_count || flush)) {
2083         AVPacketList *pktl = s->packet_buffer;
2084         if (s->nb_streams != stream_count) {
2085             AVPacketList *last = NULL;
2086             // find last packet in edit unit
2087             while (pktl) {
2088                 if (!stream_count || pktl->pkt.stream_index == 0)
2089                     break;
2090                 last = pktl;
2091                 pktl = pktl->next;
2092                 stream_count--;
2093             }
2094             // purge packet queue
2095             while (pktl) {
2096                 AVPacketList *next = pktl->next;
2097
2098                 if(s->streams[pktl->pkt.stream_index]->last_in_packet_buffer == pktl)
2099                     s->streams[pktl->pkt.stream_index]->last_in_packet_buffer= NULL;
2100                 av_free_packet(&pktl->pkt);
2101                 av_freep(&pktl);
2102                 pktl = next;
2103             }
2104             if (last)
2105                 last->next = NULL;
2106             else {
2107                 s->packet_buffer = NULL;
2108                 s->packet_buffer_end= NULL;
2109                 goto out;
2110             }
2111             pktl = s->packet_buffer;
2112         }
2113
2114         *out = pktl->pkt;
2115         av_dlog(s, "out st:%d dts:%"PRId64"\n", (*out).stream_index, (*out).dts);
2116         s->packet_buffer = pktl->next;
2117         if(s->streams[pktl->pkt.stream_index]->last_in_packet_buffer == pktl)
2118             s->streams[pktl->pkt.stream_index]->last_in_packet_buffer= NULL;
2119         if(!s->packet_buffer)
2120             s->packet_buffer_end= NULL;
2121         av_freep(&pktl);
2122         return 1;
2123     } else {
2124     out:
2125         av_init_packet(out);
2126         return 0;
2127     }
2128 }
2129
2130 static int mxf_compare_timestamps(AVFormatContext *s, AVPacket *next, AVPacket *pkt)
2131 {
2132     MXFStreamContext *sc  = s->streams[pkt ->stream_index]->priv_data;
2133     MXFStreamContext *sc2 = s->streams[next->stream_index]->priv_data;
2134
2135     return next->dts > pkt->dts ||
2136         (next->dts == pkt->dts && sc->order < sc2->order);
2137 }
2138
2139 static int mxf_interleave(AVFormatContext *s, AVPacket *out, AVPacket *pkt, int flush)
2140 {
2141     return ff_audio_rechunk_interleave(s, out, pkt, flush,
2142                                mxf_interleave_get_packet, mxf_compare_timestamps);
2143 }
2144
2145 AVOutputFormat ff_mxf_muxer = {
2146     .name              = "mxf",
2147     .long_name         = NULL_IF_CONFIG_SMALL("MXF (Material eXchange Format)"),
2148     .mime_type         = "application/mxf",
2149     .extensions        = "mxf",
2150     .priv_data_size    = sizeof(MXFContext),
2151     .audio_codec       = AV_CODEC_ID_PCM_S16LE,
2152     .video_codec       = AV_CODEC_ID_MPEG2VIDEO,
2153     .write_header      = mxf_write_header,
2154     .write_packet      = mxf_write_packet,
2155     .write_trailer     = mxf_write_footer,
2156     .flags             = AVFMT_NOTIMESTAMPS,
2157     .interleave_packet = mxf_interleave,
2158 };
2159
2160 AVOutputFormat ff_mxf_d10_muxer = {
2161     .name              = "mxf_d10",
2162     .long_name         = NULL_IF_CONFIG_SMALL("MXF (Material eXchange Format) D-10 Mapping"),
2163     .mime_type         = "application/mxf",
2164     .priv_data_size    = sizeof(MXFContext),
2165     .audio_codec       = AV_CODEC_ID_PCM_S16LE,
2166     .video_codec       = AV_CODEC_ID_MPEG2VIDEO,
2167     .write_header      = mxf_write_header,
2168     .write_packet      = mxf_write_packet,
2169     .write_trailer     = mxf_write_footer,
2170     .flags             = AVFMT_NOTIMESTAMPS,
2171     .interleave_packet = mxf_interleave,
2172 };