1/* 2 * MXF muxer 3 * Copyright (c) 2008 GUCAS, Zhentan Feng <spyfeng at gmail dot com> 4 * Copyright (c) 2008 Baptiste Coudurier <baptiste dot coudurier at gmail dot com> 5 * 6 * This file is part of FFmpeg. 7 * 8 * FFmpeg is free software; you can redistribute it and/or 9 * modify it under the terms of the GNU Lesser General Public 10 * License as published by the Free Software Foundation; either 11 * version 2.1 of the License, or (at your option) any later version. 12 * 13 * FFmpeg is distributed in the hope that it will be useful, 14 * but WITHOUT ANY WARRANTY; without even the implied warranty of 15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 16 * Lesser General Public License for more details. 17 * 18 * You should have received a copy of the GNU Lesser General Public 19 * License along with FFmpeg; if not, write to the Free Software 20 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA 21 */ 22 23/* 24 * References 25 * SMPTE 336M KLV Data Encoding Protocol Using Key-Length-Value 26 * SMPTE 377M MXF File Format Specifications 27 * SMPTE 379M MXF Generic Container 28 * SMPTE 381M Mapping MPEG Streams into the MXF Generic Container 29 * SMPTE RP210: SMPTE Metadata Dictionary 30 * SMPTE RP224: Registry of SMPTE Universal Labels 31 */ 32 33//#define DEBUG 34 35#include <math.h> 36#include <time.h> 37 38#include "libavutil/fifo.h" 39#include "libavcodec/bytestream.h" 40#include "audiointerleave.h" 41#include "avformat.h" 42#include "mxf.h" 43 44static const int NTSC_samples_per_frame[] = { 1602, 1601, 1602, 1601, 1602, 0 }; 45static const int PAL_samples_per_frame[] = { 1920, 0 }; 46 47AVOutputFormat mxf_d10_muxer; 48 49#define EDIT_UNITS_PER_BODY 250 50#define KAG_SIZE 512 51 52typedef struct { 53 int local_tag; 54 UID uid; 55} MXFLocalTagPair; 56 57typedef struct { 58 uint8_t flags; 59 uint64_t offset; 60 unsigned slice_offset; ///< offset of audio slice 61} MXFIndexEntry; 62 63typedef struct { 64 AudioInterleaveContext aic; 65 UID track_essence_element_key; 66 int index; ///< index in mxf_essence_container_uls table 67 const UID *codec_ul; 68 int order; ///< interleaving order if dts are equal 69 int interlaced; ///< wether picture is interlaced 70 int temporal_reordering; 71 AVRational aspect_ratio; ///< display aspect ratio 72} MXFStreamContext; 73 74typedef struct { 75 UID container_ul; 76 UID element_ul; 77 UID codec_ul; 78 void (*write_desc)(); 79} MXFContainerEssenceEntry; 80 81static const struct { 82 enum CodecID id; 83 int index; 84} mxf_essence_mappings[] = { 85 { CODEC_ID_MPEG2VIDEO, 0 }, 86 { CODEC_ID_PCM_S24LE, 1 }, 87 { CODEC_ID_PCM_S16LE, 1 }, 88 { 0 } 89}; 90 91static void mxf_write_wav_desc(AVFormatContext *s, AVStream *st); 92static void mxf_write_aes3_desc(AVFormatContext *s, AVStream *st); 93static void mxf_write_mpegvideo_desc(AVFormatContext *s, AVStream *st); 94static void mxf_write_cdci_desc(AVFormatContext *s, AVStream *st); 95static void mxf_write_generic_sound_desc(AVFormatContext *s, AVStream *st); 96 97static const MXFContainerEssenceEntry mxf_essence_container_uls[] = { 98 { { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x02,0x0D,0x01,0x03,0x01,0x02,0x04,0x60,0x01 }, 99 { 0x06,0x0E,0x2B,0x34,0x01,0x02,0x01,0x01,0x0D,0x01,0x03,0x01,0x15,0x01,0x05,0x00 }, 100 { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x03,0x04,0x01,0x02,0x02,0x01,0x00,0x00,0x00 }, 101 mxf_write_mpegvideo_desc }, 102 { { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x0D,0x01,0x03,0x01,0x02,0x06,0x03,0x00 }, 103 { 0x06,0x0E,0x2B,0x34,0x01,0x02,0x01,0x01,0x0D,0x01,0x03,0x01,0x16,0x01,0x03,0x00 }, 104 { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x04,0x02,0x02,0x01,0x00,0x00,0x00,0x00 }, 105 mxf_write_aes3_desc }, 106 { { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x0D,0x01,0x03,0x01,0x02,0x06,0x01,0x00 }, 107 { 0x06,0x0E,0x2B,0x34,0x01,0x02,0x01,0x01,0x0D,0x01,0x03,0x01,0x16,0x01,0x01,0x00 }, 108 { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x04,0x02,0x02,0x01,0x00,0x00,0x00,0x00 }, 109 mxf_write_wav_desc }, 110 // D-10 625/50 PAL 50mb/s 111 { { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x0D,0x01,0x03,0x01,0x02,0x01,0x01,0x01 }, 112 { 0x06,0x0E,0x2B,0x34,0x01,0x02,0x01,0x01,0x0D,0x01,0x03,0x01,0x05,0x01,0x01,0x00 }, 113 { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x04,0x01,0x02,0x02,0x01,0x02,0x01,0x01 }, 114 mxf_write_cdci_desc }, 115 { { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x0D,0x01,0x03,0x01,0x02,0x01,0x01,0x01 }, 116 { 0x06,0x0E,0x2B,0x34,0x01,0x02,0x01,0x01,0x0D,0x01,0x03,0x01,0x06,0x01,0x10,0x00 }, 117 { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x04,0x02,0x02,0x01,0x00,0x00,0x00,0x00 }, 118 mxf_write_generic_sound_desc }, 119 // D-10 525/60 NTSC 50mb/s 120 { { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x0D,0x01,0x03,0x01,0x02,0x01,0x02,0x01 }, 121 { 0x06,0x0E,0x2B,0x34,0x01,0x02,0x01,0x01,0x0D,0x01,0x03,0x01,0x05,0x01,0x01,0x00 }, 122 { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x04,0x01,0x02,0x02,0x01,0x02,0x01,0x02 }, 123 mxf_write_cdci_desc }, 124 { { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x0D,0x01,0x03,0x01,0x02,0x01,0x02,0x01 }, 125 { 0x06,0x0E,0x2B,0x34,0x01,0x02,0x01,0x01,0x0D,0x01,0x03,0x01,0x06,0x01,0x10,0x00 }, 126 { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x04,0x02,0x02,0x01,0x00,0x00,0x00,0x00 }, 127 mxf_write_generic_sound_desc }, 128 // D-10 625/50 PAL 40mb/s 129 { { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x0D,0x01,0x03,0x01,0x02,0x01,0x03,0x01 }, 130 { 0x06,0x0E,0x2B,0x34,0x01,0x02,0x01,0x01,0x0D,0x01,0x03,0x01,0x05,0x01,0x01,0x00 }, 131 { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x04,0x01,0x02,0x02,0x01,0x02,0x01,0x03 }, 132 mxf_write_cdci_desc }, 133 { { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x0D,0x01,0x03,0x01,0x02,0x01,0x03,0x01 }, 134 { 0x06,0x0E,0x2B,0x34,0x01,0x02,0x01,0x01,0x0D,0x01,0x03,0x01,0x06,0x01,0x10,0x00 }, 135 { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x04,0x02,0x02,0x01,0x00,0x00,0x00,0x00 }, 136 mxf_write_generic_sound_desc }, 137 // D-10 525/60 NTSC 40mb/s 138 { { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x0D,0x01,0x03,0x01,0x02,0x01,0x04,0x01 }, 139 { 0x06,0x0E,0x2B,0x34,0x01,0x02,0x01,0x01,0x0D,0x01,0x03,0x01,0x05,0x01,0x01,0x00 }, 140 { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x04,0x01,0x02,0x02,0x01,0x02,0x01,0x04 }, 141 mxf_write_cdci_desc }, 142 { { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x0D,0x01,0x03,0x01,0x02,0x01,0x04,0x01 }, 143 { 0x06,0x0E,0x2B,0x34,0x01,0x02,0x01,0x01,0x0D,0x01,0x03,0x01,0x06,0x01,0x10,0x00 }, 144 { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x04,0x02,0x02,0x01,0x00,0x00,0x00,0x00 }, 145 mxf_write_generic_sound_desc }, 146 // D-10 625/50 PAL 30mb/s 147 { { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x0D,0x01,0x03,0x01,0x02,0x01,0x05,0x01 }, 148 { 0x06,0x0E,0x2B,0x34,0x01,0x02,0x01,0x01,0x0D,0x01,0x03,0x01,0x05,0x01,0x01,0x00 }, 149 { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x04,0x01,0x02,0x02,0x01,0x02,0x01,0x05 }, 150 mxf_write_cdci_desc }, 151 { { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x0D,0x01,0x03,0x01,0x02,0x01,0x05,0x01 }, 152 { 0x06,0x0E,0x2B,0x34,0x01,0x02,0x01,0x01,0x0D,0x01,0x03,0x01,0x06,0x01,0x10,0x00 }, 153 { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x04,0x02,0x02,0x01,0x00,0x00,0x00,0x00 }, 154 mxf_write_generic_sound_desc }, 155 // D-10 525/60 NTSC 30mb/s 156 { { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x0D,0x01,0x03,0x01,0x02,0x01,0x06,0x01 }, 157 { 0x06,0x0E,0x2B,0x34,0x01,0x02,0x01,0x01,0x0D,0x01,0x03,0x01,0x05,0x01,0x01,0x00 }, 158 { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x04,0x01,0x02,0x02,0x01,0x02,0x01,0x06 }, 159 mxf_write_cdci_desc }, 160 { { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x0D,0x01,0x03,0x01,0x02,0x01,0x06,0x01 }, 161 { 0x06,0x0E,0x2B,0x34,0x01,0x02,0x01,0x01,0x0D,0x01,0x03,0x01,0x06,0x01,0x10,0x00 }, 162 { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x04,0x02,0x02,0x01,0x00,0x00,0x00,0x00 }, 163 mxf_write_generic_sound_desc }, 164 { { 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00 }, 165 { 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00 }, 166 { 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00 }, 167 NULL }, 168}; 169 170typedef struct MXFContext { 171 int64_t footer_partition_offset; 172 int essence_container_count; 173 AVRational time_base; 174 int header_written; 175 MXFIndexEntry *index_entries; 176 unsigned edit_units_count; 177 uint64_t timestamp; ///< timestamp, as year(16),month(8),day(8),hour(8),minutes(8),msec/4(8) 178 uint8_t slice_count; ///< index slice count minus 1 (1 if no audio, 0 otherwise) 179 int last_indexed_edit_unit; 180 uint64_t *body_partition_offset; 181 unsigned body_partitions_count; 182 int last_key_index; ///< index of last key frame 183 uint64_t duration; 184 AVStream *timecode_track; 185 int timecode_base; ///< rounded time code base (25 or 30) 186 int timecode_start; ///< frame number computed from mpeg-2 gop header timecode 187 int timecode_drop_frame; ///< time code use drop frame method frop mpeg-2 essence gop header 188 int edit_unit_byte_count; ///< fixed edit unit byte count 189 uint64_t body_offset; 190} MXFContext; 191 192static const uint8_t uuid_base[] = { 0xAD,0xAB,0x44,0x24,0x2f,0x25,0x4d,0xc7,0x92,0xff,0x29,0xbd }; 193static const uint8_t umid_base[] = { 0x06,0x0A,0x2B,0x34,0x01,0x01,0x01,0x05,0x01,0x01,0x0D,0x00,0x13,0x00,0x00,0x00 }; 194 195/** 196 * complete key for operation pattern, partitions, and primer pack 197 */ 198static const uint8_t op1a_ul[] = { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x0D,0x01,0x02,0x01,0x01,0x01,0x09,0x00 }; 199static const uint8_t footer_partition_key[] = { 0x06,0x0E,0x2B,0x34,0x02,0x05,0x01,0x01,0x0D,0x01,0x02,0x01,0x01,0x04,0x04,0x00 }; // ClosedComplete 200static const uint8_t primer_pack_key[] = { 0x06,0x0E,0x2B,0x34,0x02,0x05,0x01,0x01,0x0D,0x01,0x02,0x01,0x01,0x05,0x01,0x00 }; 201static const uint8_t index_table_segment_key[] = { 0x06,0x0E,0x2B,0x34,0x02,0x53,0x01,0x01,0x0d,0x01,0x02,0x01,0x01,0x10,0x01,0x00 }; 202static const uint8_t random_index_pack_key[] = { 0x06,0x0E,0x2B,0x34,0x02,0x05,0x01,0x01,0x0D,0x01,0x02,0x01,0x01,0x11,0x01,0x00 }; 203static const uint8_t header_open_partition_key[] = { 0x06,0x0E,0x2B,0x34,0x02,0x05,0x01,0x01,0x0D,0x01,0x02,0x01,0x01,0x02,0x01,0x00 }; // OpenIncomplete 204static const uint8_t header_closed_partition_key[] = { 0x06,0x0E,0x2B,0x34,0x02,0x05,0x01,0x01,0x0D,0x01,0x02,0x01,0x01,0x02,0x04,0x00 }; // ClosedComplete 205static const uint8_t klv_fill_key[] = { 0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x01,0x03,0x01,0x02,0x10,0x01,0x00,0x00,0x00 }; 206static const uint8_t body_partition_key[] = { 0x06,0x0E,0x2B,0x34,0x02,0x05,0x01,0x01,0x0D,0x01,0x02,0x01,0x01,0x03,0x04,0x00 }; // ClosedComplete 207 208/** 209 * partial key for header metadata 210 */ 211static const uint8_t header_metadata_key[] = { 0x06,0x0E,0x2B,0x34,0x02,0x53,0x01,0x01,0x0D,0x01,0x01,0x01,0x01 }; 212static const uint8_t multiple_desc_ul[] = { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x03,0x0D,0x01,0x03,0x01,0x02,0x7F,0x01,0x00 }; 213 214/** 215 * SMPTE RP210 http://www.smpte-ra.org/mdd/index.html 216 */ 217static const MXFLocalTagPair mxf_local_tag_batch[] = { 218 // preface set 219 { 0x3C0A, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x01,0x01,0x01,0x15,0x02,0x00,0x00,0x00,0x00}}, /* Instance UID */ 220 { 0x3B02, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x07,0x02,0x01,0x10,0x02,0x04,0x00,0x00}}, /* Last Modified Date */ 221 { 0x3B05, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x03,0x01,0x02,0x01,0x05,0x00,0x00,0x00}}, /* Version */ 222 { 0x3B06, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x06,0x01,0x01,0x04,0x06,0x04,0x00,0x00}}, /* Identifications reference */ 223 { 0x3B03, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x06,0x01,0x01,0x04,0x02,0x01,0x00,0x00}}, /* Content Storage reference */ 224 { 0x3B09, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x05,0x01,0x02,0x02,0x03,0x00,0x00,0x00,0x00}}, /* Operational Pattern UL */ 225 { 0x3B0A, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x05,0x01,0x02,0x02,0x10,0x02,0x01,0x00,0x00}}, /* Essence Containers UL batch */ 226 { 0x3B0B, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x05,0x01,0x02,0x02,0x10,0x02,0x02,0x00,0x00}}, /* DM Schemes UL batch */ 227 // Identification 228 { 0x3C09, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x05,0x20,0x07,0x01,0x01,0x00,0x00,0x00}}, /* This Generation UID */ 229 { 0x3C01, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x05,0x20,0x07,0x01,0x02,0x01,0x00,0x00}}, /* Company Name */ 230 { 0x3C02, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x05,0x20,0x07,0x01,0x03,0x01,0x00,0x00}}, /* Product Name */ 231 { 0x3C04, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x05,0x20,0x07,0x01,0x05,0x01,0x00,0x00}}, /* Version String */ 232 { 0x3C05, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x05,0x20,0x07,0x01,0x07,0x00,0x00,0x00}}, /* Product ID */ 233 { 0x3C06, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x07,0x02,0x01,0x10,0x02,0x03,0x00,0x00}}, /* Modification Date */ 234 // Content Storage 235 { 0x1901, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x06,0x01,0x01,0x04,0x05,0x01,0x00,0x00}}, /* Package strong reference batch */ 236 { 0x1902, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x06,0x01,0x01,0x04,0x05,0x02,0x00,0x00}}, /* Package strong reference batch */ 237 // Essence Container Data 238 { 0x2701, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x06,0x01,0x01,0x06,0x01,0x00,0x00,0x00}}, /* Linked Package UID */ 239 { 0x3F07, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x04,0x01,0x03,0x04,0x04,0x00,0x00,0x00,0x00}}, /* BodySID */ 240 // Package 241 { 0x4401, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x01,0x01,0x01,0x15,0x10,0x00,0x00,0x00,0x00}}, /* Package UID */ 242 { 0x4405, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x07,0x02,0x01,0x10,0x01,0x03,0x00,0x00}}, /* Package Creation Date */ 243 { 0x4404, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x07,0x02,0x01,0x10,0x02,0x05,0x00,0x00}}, /* Package Modified Date */ 244 { 0x4403, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x06,0x01,0x01,0x04,0x06,0x05,0x00,0x00}}, /* Tracks Strong reference array */ 245 { 0x4701, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x06,0x01,0x01,0x04,0x02,0x03,0x00,0x00}}, /* Descriptor */ 246 // Track 247 { 0x4801, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x01,0x07,0x01,0x01,0x00,0x00,0x00,0x00}}, /* Track ID */ 248 { 0x4804, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x01,0x04,0x01,0x03,0x00,0x00,0x00,0x00}}, /* Track Number */ 249 { 0x4B01, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x05,0x30,0x04,0x05,0x00,0x00,0x00,0x00}}, /* Edit Rate */ 250 { 0x4B02, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x07,0x02,0x01,0x03,0x01,0x03,0x00,0x00}}, /* Origin */ 251 { 0x4803, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x06,0x01,0x01,0x04,0x02,0x04,0x00,0x00}}, /* Sequence reference */ 252 // Sequence 253 { 0x0201, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x04,0x07,0x01,0x00,0x00,0x00,0x00,0x00}}, /* Data Definition UL */ 254 { 0x0202, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x07,0x02,0x02,0x01,0x01,0x03,0x00,0x00}}, /* Duration */ 255 { 0x1001, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x06,0x01,0x01,0x04,0x06,0x09,0x00,0x00}}, /* Structural Components reference array */ 256 // Source Clip 257 { 0x1201, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x07,0x02,0x01,0x03,0x01,0x04,0x00,0x00}}, /* Start position */ 258 { 0x1101, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x06,0x01,0x01,0x03,0x01,0x00,0x00,0x00}}, /* SourcePackageID */ 259 { 0x1102, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x06,0x01,0x01,0x03,0x02,0x00,0x00,0x00}}, /* SourceTrackID */ 260 // Timecode Component 261 { 0x1501, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x07,0x02,0x01,0x03,0x01,0x05,0x00,0x00}}, /* Start Time Code */ 262 { 0x1502, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x04,0x04,0x01,0x01,0x02,0x06,0x00,0x00}}, /* Rounded Time Code Base */ 263 { 0x1503, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x01,0x04,0x04,0x01,0x01,0x05,0x00,0x00,0x00}}, /* Drop Frame */ 264 // File Descriptor 265 { 0x3F01, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x04,0x06,0x01,0x01,0x04,0x06,0x0B,0x00,0x00}}, /* Sub Descriptors reference array */ 266 { 0x3006, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x05,0x06,0x01,0x01,0x03,0x05,0x00,0x00,0x00}}, /* Linked Track ID */ 267 { 0x3001, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x01,0x04,0x06,0x01,0x01,0x00,0x00,0x00,0x00}}, /* SampleRate */ 268 { 0x3004, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x06,0x01,0x01,0x04,0x01,0x02,0x00,0x00}}, /* Essence Container */ 269 // Generic Picture Essence Descriptor 270 { 0x320C, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x01,0x04,0x01,0x03,0x01,0x04,0x00,0x00,0x00}}, /* Frame Layout */ 271 { 0x320D, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x04,0x01,0x03,0x02,0x05,0x00,0x00,0x00}}, /* Video Line Map */ 272 { 0x3203, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x01,0x04,0x01,0x05,0x02,0x02,0x00,0x00,0x00}}, /* Stored Width */ 273 { 0x3202, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x01,0x04,0x01,0x05,0x02,0x01,0x00,0x00,0x00}}, /* Stored Height */ 274 { 0x3209, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x01,0x04,0x01,0x05,0x01,0x0C,0x00,0x00,0x00}}, /* Display Width */ 275 { 0x3208, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x01,0x04,0x01,0x05,0x01,0x0B,0x00,0x00,0x00}}, /* Display Height */ 276 { 0x320E, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x01,0x04,0x01,0x01,0x01,0x01,0x00,0x00,0x00}}, /* Aspect Ratio */ 277 { 0x3201, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x04,0x01,0x06,0x01,0x00,0x00,0x00,0x00}}, /* Picture Essence Coding */ 278 // CDCI Picture Essence Descriptor 279 { 0x3301, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x04,0x01,0x05,0x03,0x0A,0x00,0x00,0x00}}, /* Component Depth */ 280 { 0x3302, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x01,0x04,0x01,0x05,0x01,0x05,0x00,0x00,0x00}}, /* Horizontal Subsampling */ 281 // Generic Sound Essence Descriptor 282 { 0x3D02, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x04,0x04,0x02,0x03,0x01,0x04,0x00,0x00,0x00}}, /* Locked/Unlocked */ 283 { 0x3D03, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x05,0x04,0x02,0x03,0x01,0x01,0x01,0x00,0x00}}, /* Audio sampling rate */ 284 { 0x3D07, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x05,0x04,0x02,0x01,0x01,0x04,0x00,0x00,0x00}}, /* ChannelCount */ 285 { 0x3D01, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x04,0x04,0x02,0x03,0x03,0x04,0x00,0x00,0x00}}, /* Quantization bits */ 286 { 0x3D06, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x04,0x02,0x04,0x02,0x00,0x00,0x00,0x00}}, /* Sound Essence Compression */ 287 // Index Table Segment 288 { 0x3F0B, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x05,0x05,0x30,0x04,0x06,0x00,0x00,0x00,0x00}}, /* Index Edit Rate */ 289 { 0x3F0C, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x05,0x07,0x02,0x01,0x03,0x01,0x0A,0x00,0x00}}, /* Index Start Position */ 290 { 0x3F0D, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x05,0x07,0x02,0x02,0x01,0x01,0x02,0x00,0x00}}, /* Index Duration */ 291 { 0x3F05, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x04,0x04,0x06,0x02,0x01,0x00,0x00,0x00,0x00}}, /* Edit Unit Byte Count */ 292 { 0x3F06, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x04,0x01,0x03,0x04,0x05,0x00,0x00,0x00,0x00}}, /* IndexSID */ 293 { 0x3F08, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x04,0x04,0x04,0x04,0x01,0x01,0x00,0x00,0x00}}, /* Slice Count */ 294 { 0x3F09, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x05,0x04,0x04,0x04,0x01,0x06,0x00,0x00,0x00}}, /* Delta Entry Array */ 295 { 0x3F0A, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x05,0x04,0x04,0x04,0x02,0x05,0x00,0x00,0x00}}, /* Index Entry Array */ 296 // MPEG video Descriptor 297 { 0x8000, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x05,0x04,0x01,0x06,0x02,0x01,0x0B,0x00,0x00}}, /* BitRate */ 298 // Wave Audio Essence Descriptor 299 { 0x3D09, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x05,0x04,0x02,0x03,0x03,0x05,0x00,0x00,0x00}}, /* Average Bytes Per Second */ 300 { 0x3D0A, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x05,0x04,0x02,0x03,0x02,0x01,0x00,0x00,0x00}}, /* Block Align */ 301}; 302 303static void mxf_write_uuid(ByteIOContext *pb, enum MXFMetadataSetType type, int value) 304{ 305 put_buffer(pb, uuid_base, 12); 306 put_be16(pb, type); 307 put_be16(pb, value); 308} 309 310static void mxf_write_umid(ByteIOContext *pb, enum MXFMetadataSetType type, int value) 311{ 312 put_buffer(pb, umid_base, 16); 313 mxf_write_uuid(pb, type, value); 314} 315 316static void mxf_write_refs_count(ByteIOContext *pb, int ref_count) 317{ 318 put_be32(pb, ref_count); 319 put_be32(pb, 16); 320} 321 322static int klv_ber_length(uint64_t len) 323{ 324 if (len < 128) 325 return 1; 326 else 327 return (av_log2(len) >> 3) + 2; 328} 329 330static int klv_encode_ber_length(ByteIOContext *pb, uint64_t len) 331{ 332 // Determine the best BER size 333 int size; 334 if (len < 128) { 335 //short form 336 put_byte(pb, len); 337 return 1; 338 } 339 340 size = (av_log2(len) >> 3) + 1; 341 342 // long form 343 put_byte(pb, 0x80 + size); 344 while(size) { 345 size--; 346 put_byte(pb, len >> 8 * size & 0xff); 347 } 348 return 0; 349} 350 351static void klv_encode_ber4_length(ByteIOContext *pb, int len) 352{ 353 put_byte(pb, 0x80 + 3); 354 put_be24(pb, len); 355} 356 357/* 358 * Get essence container ul index 359 */ 360static int mxf_get_essence_container_ul_index(enum CodecID id) 361{ 362 int i; 363 for (i = 0; mxf_essence_mappings[i].id; i++) 364 if (mxf_essence_mappings[i].id == id) 365 return mxf_essence_mappings[i].index; 366 return -1; 367} 368 369static void mxf_write_primer_pack(AVFormatContext *s) 370{ 371 ByteIOContext *pb = s->pb; 372 int local_tag_number, i = 0; 373 374 local_tag_number = FF_ARRAY_ELEMS(mxf_local_tag_batch); 375 376 put_buffer(pb, primer_pack_key, 16); 377 klv_encode_ber_length(pb, local_tag_number * 18 + 8); 378 379 put_be32(pb, local_tag_number); // local_tag num 380 put_be32(pb, 18); // item size, always 18 according to the specs 381 382 for (i = 0; i < local_tag_number; i++) { 383 put_be16(pb, mxf_local_tag_batch[i].local_tag); 384 put_buffer(pb, mxf_local_tag_batch[i].uid, 16); 385 } 386} 387 388static void mxf_write_local_tag(ByteIOContext *pb, int size, int tag) 389{ 390 put_be16(pb, tag); 391 put_be16(pb, size); 392} 393 394static void mxf_write_metadata_key(ByteIOContext *pb, unsigned int value) 395{ 396 put_buffer(pb, header_metadata_key, 13); 397 put_be24(pb, value); 398} 399 400static void mxf_free(AVFormatContext *s) 401{ 402 int i; 403 404 for (i = 0; i < s->nb_streams; i++) { 405 AVStream *st = s->streams[i]; 406 av_freep(&st->priv_data); 407 } 408} 409 410static const MXFCodecUL *mxf_get_data_definition_ul(int type) 411{ 412 const MXFCodecUL *uls = ff_mxf_data_definition_uls; 413 while (uls->uid[0]) { 414 if (type == uls->id) 415 break; 416 uls++; 417 } 418 return uls; 419} 420 421static void mxf_write_essence_container_refs(AVFormatContext *s) 422{ 423 MXFContext *c = s->priv_data; 424 ByteIOContext *pb = s->pb; 425 int i; 426 427 mxf_write_refs_count(pb, c->essence_container_count); 428 av_log(s,AV_LOG_DEBUG, "essence container count:%d\n", c->essence_container_count); 429 for (i = 0; i < c->essence_container_count; i++) { 430 MXFStreamContext *sc = s->streams[i]->priv_data; 431 put_buffer(pb, mxf_essence_container_uls[sc->index].container_ul, 16); 432 } 433} 434 435static void mxf_write_preface(AVFormatContext *s) 436{ 437 MXFContext *mxf = s->priv_data; 438 ByteIOContext *pb = s->pb; 439 440 mxf_write_metadata_key(pb, 0x012f00); 441 PRINT_KEY(s, "preface key", pb->buf_ptr - 16); 442 klv_encode_ber_length(pb, 130 + 16 * mxf->essence_container_count); 443 444 // write preface set uid 445 mxf_write_local_tag(pb, 16, 0x3C0A); 446 mxf_write_uuid(pb, Preface, 0); 447 PRINT_KEY(s, "preface uid", pb->buf_ptr - 16); 448 449 // last modified date 450 mxf_write_local_tag(pb, 8, 0x3B02); 451 put_be64(pb, mxf->timestamp); 452 453 // write version 454 mxf_write_local_tag(pb, 2, 0x3B05); 455 put_be16(pb, 258); // v1.2 456 457 // write identification_refs 458 mxf_write_local_tag(pb, 16 + 8, 0x3B06); 459 mxf_write_refs_count(pb, 1); 460 mxf_write_uuid(pb, Identification, 0); 461 462 // write content_storage_refs 463 mxf_write_local_tag(pb, 16, 0x3B03); 464 mxf_write_uuid(pb, ContentStorage, 0); 465 466 // operational pattern 467 mxf_write_local_tag(pb, 16, 0x3B09); 468 put_buffer(pb, op1a_ul, 16); 469 470 // write essence_container_refs 471 mxf_write_local_tag(pb, 8 + 16 * mxf->essence_container_count, 0x3B0A); 472 mxf_write_essence_container_refs(s); 473 474 // write dm_scheme_refs 475 mxf_write_local_tag(pb, 8, 0x3B0B); 476 put_be64(pb, 0); 477} 478 479/* 480 * Write a local tag containing an ascii string as utf-16 481 */ 482static void mxf_write_local_tag_utf16(ByteIOContext *pb, int tag, const char *value) 483{ 484 int i, size = strlen(value); 485 mxf_write_local_tag(pb, size*2, tag); 486 for (i = 0; i < size; i++) 487 put_be16(pb, value[i]); 488} 489 490static void mxf_write_identification(AVFormatContext *s) 491{ 492 MXFContext *mxf = s->priv_data; 493 ByteIOContext *pb = s->pb; 494 const char *company = "FFmpeg"; 495 const char *product = "OP1a Muxer"; 496 const char *version; 497 int length; 498 499 mxf_write_metadata_key(pb, 0x013000); 500 PRINT_KEY(s, "identification key", pb->buf_ptr - 16); 501 502 version = s->streams[0]->codec->flags & CODEC_FLAG_BITEXACT ? 503 "0.0.0" : AV_STRINGIFY(LIBAVFORMAT_VERSION); 504 length = 84 + (strlen(company)+strlen(product)+strlen(version))*2; // utf-16 505 klv_encode_ber_length(pb, length); 506 507 // write uid 508 mxf_write_local_tag(pb, 16, 0x3C0A); 509 mxf_write_uuid(pb, Identification, 0); 510 PRINT_KEY(s, "identification uid", pb->buf_ptr - 16); 511 512 // write generation uid 513 mxf_write_local_tag(pb, 16, 0x3C09); 514 mxf_write_uuid(pb, Identification, 1); 515 516 mxf_write_local_tag_utf16(pb, 0x3C01, company); // Company Name 517 mxf_write_local_tag_utf16(pb, 0x3C02, product); // Product Name 518 mxf_write_local_tag_utf16(pb, 0x3C04, version); // Version String 519 520 // write product uid 521 mxf_write_local_tag(pb, 16, 0x3C05); 522 mxf_write_uuid(pb, Identification, 2); 523 524 // modification date 525 mxf_write_local_tag(pb, 8, 0x3C06); 526 put_be64(pb, mxf->timestamp); 527} 528 529static void mxf_write_content_storage(AVFormatContext *s) 530{ 531 ByteIOContext *pb = s->pb; 532 533 mxf_write_metadata_key(pb, 0x011800); 534 PRINT_KEY(s, "content storage key", pb->buf_ptr - 16); 535 klv_encode_ber_length(pb, 92); 536 537 // write uid 538 mxf_write_local_tag(pb, 16, 0x3C0A); 539 mxf_write_uuid(pb, ContentStorage, 0); 540 PRINT_KEY(s, "content storage uid", pb->buf_ptr - 16); 541 542 // write package reference 543 mxf_write_local_tag(pb, 16 * 2 + 8, 0x1901); 544 mxf_write_refs_count(pb, 2); 545 mxf_write_uuid(pb, MaterialPackage, 0); 546 mxf_write_uuid(pb, SourcePackage, 0); 547 548 // write essence container data 549 mxf_write_local_tag(pb, 8 + 16, 0x1902); 550 mxf_write_refs_count(pb, 1); 551 mxf_write_uuid(pb, EssenceContainerData, 0); 552} 553 554static void mxf_write_track(AVFormatContext *s, AVStream *st, enum MXFMetadataSetType type) 555{ 556 MXFContext *mxf = s->priv_data; 557 ByteIOContext *pb = s->pb; 558 MXFStreamContext *sc = st->priv_data; 559 560 mxf_write_metadata_key(pb, 0x013b00); 561 PRINT_KEY(s, "track key", pb->buf_ptr - 16); 562 klv_encode_ber_length(pb, 80); 563 564 // write track uid 565 mxf_write_local_tag(pb, 16, 0x3C0A); 566 mxf_write_uuid(pb, type == MaterialPackage ? Track : Track + TypeBottom, st->index); 567 PRINT_KEY(s, "track uid", pb->buf_ptr - 16); 568 569 // write track id 570 mxf_write_local_tag(pb, 4, 0x4801); 571 put_be32(pb, st->index+2); 572 573 // write track number 574 mxf_write_local_tag(pb, 4, 0x4804); 575 if (type == MaterialPackage) 576 put_be32(pb, 0); // track number of material package is 0 577 else 578 put_buffer(pb, sc->track_essence_element_key + 12, 4); 579 580 mxf_write_local_tag(pb, 8, 0x4B01); 581 put_be32(pb, mxf->time_base.den); 582 put_be32(pb, mxf->time_base.num); 583 584 // write origin 585 mxf_write_local_tag(pb, 8, 0x4B02); 586 put_be64(pb, 0); 587 588 // write sequence refs 589 mxf_write_local_tag(pb, 16, 0x4803); 590 mxf_write_uuid(pb, type == MaterialPackage ? Sequence: Sequence + TypeBottom, st->index); 591} 592 593static 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 }; 594 595static void mxf_write_common_fields(AVFormatContext *s, AVStream *st) 596{ 597 MXFContext *mxf = s->priv_data; 598 ByteIOContext *pb = s->pb; 599 600 // find data define uls 601 mxf_write_local_tag(pb, 16, 0x0201); 602 if (st == mxf->timecode_track) 603 put_buffer(pb, smpte_12m_timecode_track_data_ul, 16); 604 else { 605 const MXFCodecUL *data_def_ul = mxf_get_data_definition_ul(st->codec->codec_type); 606 put_buffer(pb, data_def_ul->uid, 16); 607 } 608 609 // write duration 610 mxf_write_local_tag(pb, 8, 0x0202); 611 put_be64(pb, mxf->duration); 612} 613 614static void mxf_write_sequence(AVFormatContext *s, AVStream *st, enum MXFMetadataSetType type) 615{ 616 MXFContext *mxf = s->priv_data; 617 ByteIOContext *pb = s->pb; 618 enum MXFMetadataSetType component; 619 620 mxf_write_metadata_key(pb, 0x010f00); 621 PRINT_KEY(s, "sequence key", pb->buf_ptr - 16); 622 klv_encode_ber_length(pb, 80); 623 624 mxf_write_local_tag(pb, 16, 0x3C0A); 625 mxf_write_uuid(pb, type == MaterialPackage ? Sequence: Sequence + TypeBottom, st->index); 626 627 PRINT_KEY(s, "sequence uid", pb->buf_ptr - 16); 628 mxf_write_common_fields(s, st); 629 630 // write structural component 631 mxf_write_local_tag(pb, 16 + 8, 0x1001); 632 mxf_write_refs_count(pb, 1); 633 if (st == mxf->timecode_track) 634 component = TimecodeComponent; 635 else 636 component = SourceClip; 637 if (type == SourcePackage) 638 component += TypeBottom; 639 mxf_write_uuid(pb, component, st->index); 640} 641 642static void mxf_write_timecode_component(AVFormatContext *s, AVStream *st, enum MXFMetadataSetType type) 643{ 644 MXFContext *mxf = s->priv_data; 645 ByteIOContext *pb = s->pb; 646 647 mxf_write_metadata_key(pb, 0x011400); 648 klv_encode_ber_length(pb, 75); 649 650 // UID 651 mxf_write_local_tag(pb, 16, 0x3C0A); 652 mxf_write_uuid(pb, type == MaterialPackage ? TimecodeComponent : 653 TimecodeComponent + TypeBottom, st->index); 654 655 mxf_write_common_fields(s, st); 656 657 // Start Time Code 658 mxf_write_local_tag(pb, 8, 0x1501); 659 put_be64(pb, mxf->timecode_start); 660 661 // Rounded Time Code Base 662 mxf_write_local_tag(pb, 2, 0x1502); 663 put_be16(pb, mxf->timecode_base); 664 665 // Drop Frame 666 mxf_write_local_tag(pb, 1, 0x1503); 667 put_byte(pb, mxf->timecode_drop_frame); 668} 669 670static void mxf_write_structural_component(AVFormatContext *s, AVStream *st, enum MXFMetadataSetType type) 671{ 672 ByteIOContext *pb = s->pb; 673 int i; 674 675 mxf_write_metadata_key(pb, 0x011100); 676 PRINT_KEY(s, "sturctural component key", pb->buf_ptr - 16); 677 klv_encode_ber_length(pb, 108); 678 679 // write uid 680 mxf_write_local_tag(pb, 16, 0x3C0A); 681 mxf_write_uuid(pb, type == MaterialPackage ? SourceClip: SourceClip + TypeBottom, st->index); 682 683 PRINT_KEY(s, "structural component uid", pb->buf_ptr - 16); 684 mxf_write_common_fields(s, st); 685 686 // write start_position 687 mxf_write_local_tag(pb, 8, 0x1201); 688 put_be64(pb, 0); 689 690 // write source package uid, end of the reference 691 mxf_write_local_tag(pb, 32, 0x1101); 692 if (type == SourcePackage) { 693 for (i = 0; i < 4; i++) 694 put_be64(pb, 0); 695 } else 696 mxf_write_umid(pb, SourcePackage, 0); 697 698 // write source track id 699 mxf_write_local_tag(pb, 4, 0x1102); 700 if (type == SourcePackage) 701 put_be32(pb, 0); 702 else 703 put_be32(pb, st->index+2); 704} 705 706static void mxf_write_multi_descriptor(AVFormatContext *s) 707{ 708 MXFContext *mxf = s->priv_data; 709 ByteIOContext *pb = s->pb; 710 const uint8_t *ul; 711 int i; 712 713 mxf_write_metadata_key(pb, 0x014400); 714 PRINT_KEY(s, "multiple descriptor key", pb->buf_ptr - 16); 715 klv_encode_ber_length(pb, 64 + 16 * s->nb_streams); 716 717 mxf_write_local_tag(pb, 16, 0x3C0A); 718 mxf_write_uuid(pb, MultipleDescriptor, 0); 719 PRINT_KEY(s, "multi_desc uid", pb->buf_ptr - 16); 720 721 // write sample rate 722 mxf_write_local_tag(pb, 8, 0x3001); 723 put_be32(pb, mxf->time_base.den); 724 put_be32(pb, mxf->time_base.num); 725 726 // write essence container ul 727 mxf_write_local_tag(pb, 16, 0x3004); 728 if (mxf->essence_container_count > 1) 729 ul = multiple_desc_ul; 730 else { 731 MXFStreamContext *sc = s->streams[0]->priv_data; 732 ul = mxf_essence_container_uls[sc->index].container_ul; 733 } 734 put_buffer(pb, ul, 16); 735 736 // write sub descriptor refs 737 mxf_write_local_tag(pb, s->nb_streams * 16 + 8, 0x3F01); 738 mxf_write_refs_count(pb, s->nb_streams); 739 for (i = 0; i < s->nb_streams; i++) 740 mxf_write_uuid(pb, SubDescriptor, i); 741} 742 743static void mxf_write_generic_desc(AVFormatContext *s, AVStream *st, const UID key, unsigned size) 744{ 745 MXFContext *mxf = s->priv_data; 746 MXFStreamContext *sc = st->priv_data; 747 ByteIOContext *pb = s->pb; 748 749 put_buffer(pb, key, 16); 750 klv_encode_ber_length(pb, size+20+8+12+20); 751 752 mxf_write_local_tag(pb, 16, 0x3C0A); 753 mxf_write_uuid(pb, SubDescriptor, st->index); 754 755 mxf_write_local_tag(pb, 4, 0x3006); 756 put_be32(pb, st->index+2); 757 758 mxf_write_local_tag(pb, 8, 0x3001); 759 put_be32(pb, mxf->time_base.den); 760 put_be32(pb, mxf->time_base.num); 761 762 mxf_write_local_tag(pb, 16, 0x3004); 763 put_buffer(pb, mxf_essence_container_uls[sc->index].container_ul, 16); 764} 765 766static const UID mxf_mpegvideo_descriptor_key = { 0x06,0x0E,0x2B,0x34,0x02,0x53,0x01,0x01,0x0d,0x01,0x01,0x01,0x01,0x01,0x51,0x00 }; 767static const UID mxf_wav_descriptor_key = { 0x06,0x0E,0x2B,0x34,0x02,0x53,0x01,0x01,0x0d,0x01,0x01,0x01,0x01,0x01,0x48,0x00 }; 768static const UID mxf_aes3_descriptor_key = { 0x06,0x0E,0x2B,0x34,0x02,0x53,0x01,0x01,0x0d,0x01,0x01,0x01,0x01,0x01,0x47,0x00 }; 769static const UID mxf_cdci_descriptor_key = { 0x06,0x0E,0x2B,0x34,0x02,0x53,0x01,0x01,0x0D,0x01,0x01,0x01,0x01,0x01,0x28,0x00 }; 770static const UID mxf_generic_sound_descriptor_key = { 0x06,0x0E,0x2B,0x34,0x02,0x53,0x01,0x01,0x0D,0x01,0x01,0x01,0x01,0x01,0x42,0x00 }; 771 772static void mxf_write_cdci_common(AVFormatContext *s, AVStream *st, const UID key, unsigned size) 773{ 774 MXFStreamContext *sc = st->priv_data; 775 ByteIOContext *pb = s->pb; 776 int stored_height = (st->codec->height+15)/16*16; 777 int display_height; 778 int f1, f2; 779 780 mxf_write_generic_desc(s, st, key, size+8+8+8+8+8+8+5+16+sc->interlaced*4+12+20); 781 782 mxf_write_local_tag(pb, 4, 0x3203); 783 put_be32(pb, st->codec->width); 784 785 mxf_write_local_tag(pb, 4, 0x3202); 786 put_be32(pb, stored_height>>sc->interlaced); 787 788 mxf_write_local_tag(pb, 4, 0x3209); 789 put_be32(pb, st->codec->width); 790 791 if (st->codec->height == 608) // PAL + VBI 792 display_height = 576; 793 else if (st->codec->height == 512) // NTSC + VBI 794 display_height = 486; 795 else 796 display_height = st->codec->height; 797 798 mxf_write_local_tag(pb, 4, 0x3208); 799 put_be32(pb, display_height>>sc->interlaced); 800 801 // component depth 802 mxf_write_local_tag(pb, 4, 0x3301); 803 put_be32(pb, 8); 804 805 // horizontal subsampling 806 mxf_write_local_tag(pb, 4, 0x3302); 807 put_be32(pb, 2); 808 809 // frame layout 810 mxf_write_local_tag(pb, 1, 0x320C); 811 put_byte(pb, sc->interlaced); 812 813 // video line map 814 switch (st->codec->height) { 815 case 576: f1 = 23; f2 = 336; break; 816 case 608: f1 = 7; f2 = 320; break; 817 case 480: f1 = 20; f2 = 283; break; 818 case 512: f1 = 7; f2 = 270; break; 819 case 720: f1 = 26; f2 = 0; break; // progressive 820 case 1080: f1 = 21; f2 = 584; break; 821 default: f1 = 0; f2 = 0; break; 822 } 823 824 if (!sc->interlaced) { 825 f2 = 0; 826 f1 *= 2; 827 } 828 829 mxf_write_local_tag(pb, 12+sc->interlaced*4, 0x320D); 830 put_be32(pb, sc->interlaced ? 2 : 1); 831 put_be32(pb, 4); 832 put_be32(pb, f1); 833 if (sc->interlaced) 834 put_be32(pb, f2); 835 836 mxf_write_local_tag(pb, 8, 0x320E); 837 put_be32(pb, sc->aspect_ratio.num); 838 put_be32(pb, sc->aspect_ratio.den); 839 840 mxf_write_local_tag(pb, 16, 0x3201); 841 put_buffer(pb, *sc->codec_ul, 16); 842} 843 844static void mxf_write_cdci_desc(AVFormatContext *s, AVStream *st) 845{ 846 mxf_write_cdci_common(s, st, mxf_cdci_descriptor_key, 0); 847} 848 849static void mxf_write_mpegvideo_desc(AVFormatContext *s, AVStream *st) 850{ 851 ByteIOContext *pb = s->pb; 852 853 mxf_write_cdci_common(s, st, mxf_mpegvideo_descriptor_key, 8); 854 855 // bit rate 856 mxf_write_local_tag(pb, 4, 0x8000); 857 put_be32(pb, st->codec->bit_rate); 858} 859 860static void mxf_write_generic_sound_common(AVFormatContext *s, AVStream *st, const UID key, unsigned size) 861{ 862 ByteIOContext *pb = s->pb; 863 864 mxf_write_generic_desc(s, st, key, size+5+12+8+8); 865 866 // audio locked 867 mxf_write_local_tag(pb, 1, 0x3D02); 868 put_byte(pb, 1); 869 870 // write audio sampling rate 871 mxf_write_local_tag(pb, 8, 0x3D03); 872 put_be32(pb, st->codec->sample_rate); 873 put_be32(pb, 1); 874 875 mxf_write_local_tag(pb, 4, 0x3D07); 876 put_be32(pb, st->codec->channels); 877 878 mxf_write_local_tag(pb, 4, 0x3D01); 879 put_be32(pb, av_get_bits_per_sample(st->codec->codec_id)); 880} 881 882static void mxf_write_wav_common(AVFormatContext *s, AVStream *st, const UID key, unsigned size) 883{ 884 ByteIOContext *pb = s->pb; 885 886 mxf_write_generic_sound_common(s, st, key, size+6+8); 887 888 mxf_write_local_tag(pb, 2, 0x3D0A); 889 put_be16(pb, st->codec->block_align); 890 891 // avg bytes per sec 892 mxf_write_local_tag(pb, 4, 0x3D09); 893 put_be32(pb, st->codec->block_align*st->codec->sample_rate); 894} 895 896static void mxf_write_wav_desc(AVFormatContext *s, AVStream *st) 897{ 898 mxf_write_wav_common(s, st, mxf_wav_descriptor_key, 0); 899} 900 901static void mxf_write_aes3_desc(AVFormatContext *s, AVStream *st) 902{ 903 mxf_write_wav_common(s, st, mxf_aes3_descriptor_key, 0); 904} 905 906static void mxf_write_generic_sound_desc(AVFormatContext *s, AVStream *st) 907{ 908 mxf_write_generic_sound_common(s, st, mxf_generic_sound_descriptor_key, 0); 909} 910 911static void mxf_write_package(AVFormatContext *s, enum MXFMetadataSetType type) 912{ 913 MXFContext *mxf = s->priv_data; 914 ByteIOContext *pb = s->pb; 915 int i, track_count = s->nb_streams+1; 916 917 if (type == MaterialPackage) { 918 mxf_write_metadata_key(pb, 0x013600); 919 PRINT_KEY(s, "Material Package key", pb->buf_ptr - 16); 920 klv_encode_ber_length(pb, 92 + 16*track_count); 921 } else { 922 mxf_write_metadata_key(pb, 0x013700); 923 PRINT_KEY(s, "Source Package key", pb->buf_ptr - 16); 924 klv_encode_ber_length(pb, 112 + 16*track_count); // 20 bytes length for descriptor reference 925 } 926 927 // write uid 928 mxf_write_local_tag(pb, 16, 0x3C0A); 929 mxf_write_uuid(pb, type, 0); 930 av_log(s,AV_LOG_DEBUG, "package type:%d\n", type); 931 PRINT_KEY(s, "package uid", pb->buf_ptr - 16); 932 933 // write package umid 934 mxf_write_local_tag(pb, 32, 0x4401); 935 mxf_write_umid(pb, type, 0); 936 PRINT_KEY(s, "package umid second part", pb->buf_ptr - 16); 937 938 // package creation date 939 mxf_write_local_tag(pb, 8, 0x4405); 940 put_be64(pb, mxf->timestamp); 941 942 // package modified date 943 mxf_write_local_tag(pb, 8, 0x4404); 944 put_be64(pb, mxf->timestamp); 945 946 // write track refs 947 mxf_write_local_tag(pb, track_count*16 + 8, 0x4403); 948 mxf_write_refs_count(pb, track_count); 949 mxf_write_uuid(pb, type == MaterialPackage ? Track : 950 Track + TypeBottom, -1); // timecode track 951 for (i = 0; i < s->nb_streams; i++) 952 mxf_write_uuid(pb, type == MaterialPackage ? Track : Track + TypeBottom, i); 953 954 // write multiple descriptor reference 955 if (type == SourcePackage) { 956 mxf_write_local_tag(pb, 16, 0x4701); 957 if (s->nb_streams > 1) { 958 mxf_write_uuid(pb, MultipleDescriptor, 0); 959 mxf_write_multi_descriptor(s); 960 } else 961 mxf_write_uuid(pb, SubDescriptor, 0); 962 } 963 964 // write timecode track 965 mxf_write_track(s, mxf->timecode_track, type); 966 mxf_write_sequence(s, mxf->timecode_track, type); 967 mxf_write_timecode_component(s, mxf->timecode_track, type); 968 969 for (i = 0; i < s->nb_streams; i++) { 970 AVStream *st = s->streams[i]; 971 mxf_write_track(s, st, type); 972 mxf_write_sequence(s, st, type); 973 mxf_write_structural_component(s, st, type); 974 975 if (type == SourcePackage) { 976 MXFStreamContext *sc = st->priv_data; 977 mxf_essence_container_uls[sc->index].write_desc(s, st); 978 } 979 } 980} 981 982static int mxf_write_essence_container_data(AVFormatContext *s) 983{ 984 ByteIOContext *pb = s->pb; 985 986 mxf_write_metadata_key(pb, 0x012300); 987 klv_encode_ber_length(pb, 72); 988 989 mxf_write_local_tag(pb, 16, 0x3C0A); // Instance UID 990 mxf_write_uuid(pb, EssenceContainerData, 0); 991 992 mxf_write_local_tag(pb, 32, 0x2701); // Linked Package UID 993 mxf_write_umid(pb, SourcePackage, 0); 994 995 mxf_write_local_tag(pb, 4, 0x3F07); // BodySID 996 put_be32(pb, 1); 997 998 mxf_write_local_tag(pb, 4, 0x3F06); // IndexSID 999 put_be32(pb, 2); 1000 1001 return 0; 1002} 1003 1004static int mxf_write_header_metadata_sets(AVFormatContext *s) 1005{ 1006 mxf_write_preface(s); 1007 mxf_write_identification(s); 1008 mxf_write_content_storage(s); 1009 mxf_write_package(s, MaterialPackage); 1010 mxf_write_package(s, SourcePackage); 1011 mxf_write_essence_container_data(s); 1012 return 0; 1013} 1014 1015static unsigned klv_fill_size(uint64_t size) 1016{ 1017 unsigned pad = KAG_SIZE - (size & (KAG_SIZE-1)); 1018 if (pad < 20) // smallest fill item possible 1019 return pad + KAG_SIZE; 1020 else 1021 return pad & (KAG_SIZE-1); 1022} 1023 1024static void mxf_write_index_table_segment(AVFormatContext *s) 1025{ 1026 MXFContext *mxf = s->priv_data; 1027 ByteIOContext *pb = s->pb; 1028 int i, j; 1029 int temporal_reordering = 0; 1030 int key_index = mxf->last_key_index; 1031 1032 av_log(s, AV_LOG_DEBUG, "edit units count %d\n", mxf->edit_units_count); 1033 1034 if (!mxf->edit_units_count && !mxf->edit_unit_byte_count) 1035 return; 1036 1037 put_buffer(pb, index_table_segment_key, 16); 1038 1039 if (mxf->edit_unit_byte_count) { 1040 klv_encode_ber_length(pb, 80); 1041 } else { 1042 klv_encode_ber_length(pb, 85 + 12+(s->nb_streams+1)*6 + 1043 12+mxf->edit_units_count*(11+mxf->slice_count*4)); 1044 } 1045 1046 // instance id 1047 mxf_write_local_tag(pb, 16, 0x3C0A); 1048 mxf_write_uuid(pb, IndexTableSegment, 0); 1049 1050 // index edit rate 1051 mxf_write_local_tag(pb, 8, 0x3F0B); 1052 put_be32(pb, mxf->time_base.den); 1053 put_be32(pb, mxf->time_base.num); 1054 1055 // index start position 1056 mxf_write_local_tag(pb, 8, 0x3F0C); 1057 put_be64(pb, mxf->last_indexed_edit_unit); 1058 1059 // index duration 1060 mxf_write_local_tag(pb, 8, 0x3F0D); 1061 put_be64(pb, mxf->edit_units_count); 1062 1063 // edit unit byte count 1064 mxf_write_local_tag(pb, 4, 0x3F05); 1065 put_be32(pb, mxf->edit_unit_byte_count); 1066 1067 // index sid 1068 mxf_write_local_tag(pb, 4, 0x3F06); 1069 put_be32(pb, 2); 1070 1071 // body sid 1072 mxf_write_local_tag(pb, 4, 0x3F07); 1073 put_be32(pb, 1); 1074 1075 if (!mxf->edit_unit_byte_count) { 1076 // real slice count - 1 1077 mxf_write_local_tag(pb, 1, 0x3F08); 1078 put_byte(pb, mxf->slice_count); 1079 1080 // delta entry array 1081 mxf_write_local_tag(pb, 8 + (s->nb_streams+1)*6, 0x3F09); 1082 put_be32(pb, s->nb_streams+1); // num of entries 1083 put_be32(pb, 6); // size of one entry 1084 // write system item delta entry 1085 put_byte(pb, 0); 1086 put_byte(pb, 0); // slice entry 1087 put_be32(pb, 0); // element delta 1088 for (i = 0; i < s->nb_streams; i++) { 1089 AVStream *st = s->streams[i]; 1090 MXFStreamContext *sc = st->priv_data; 1091 put_byte(pb, sc->temporal_reordering); 1092 if (sc->temporal_reordering) 1093 temporal_reordering = 1; 1094 if (i == 0) { // video track 1095 put_byte(pb, 0); // slice number 1096 put_be32(pb, KAG_SIZE); // system item size including klv fill 1097 } else { // audio track 1098 unsigned audio_frame_size = sc->aic.samples[0]*sc->aic.sample_size; 1099 audio_frame_size += klv_fill_size(audio_frame_size); 1100 put_byte(pb, 1); 1101 put_be32(pb, (i-1)*audio_frame_size); // element delta 1102 } 1103 } 1104 1105 mxf_write_local_tag(pb, 8 + mxf->edit_units_count*(11+mxf->slice_count*4), 0x3F0A); 1106 put_be32(pb, mxf->edit_units_count); // num of entries 1107 put_be32(pb, 11+mxf->slice_count*4); // size of one entry 1108 for (i = 0; i < mxf->edit_units_count; i++) { 1109 if (temporal_reordering) { 1110 int temporal_offset = 0; 1111 for (j = i+1; j < mxf->edit_units_count; j++) { 1112 temporal_offset++; 1113 if (mxf->index_entries[j].flags & 0x10) { // backward prediction 1114 // next is not b, so is reordered 1115 if (!(mxf->index_entries[i+1].flags & 0x10)) { 1116 if ((mxf->index_entries[i].flags & 0x11) == 0) // i frame 1117 temporal_offset = 0; 1118 else 1119 temporal_offset = -temporal_offset; 1120 } 1121 break; 1122 } 1123 } 1124 put_byte(pb, temporal_offset); 1125 } else 1126 put_byte(pb, 0); 1127 if (!(mxf->index_entries[i].flags & 0x33)) { // I frame 1128 mxf->last_key_index = key_index; 1129 key_index = i; 1130 } 1131 if (mxf->index_entries[i].flags & 0x10 && // backward prediction 1132 !(mxf->index_entries[key_index].flags & 0x80)) { // open gop 1133 put_byte(pb, mxf->last_key_index - i); 1134 } else { 1135 put_byte(pb, key_index - i); // key frame offset 1136 if ((mxf->index_entries[i].flags & 0x20) == 0x20) // only forward 1137 mxf->last_key_index = key_index; 1138 } 1139 put_byte(pb, mxf->index_entries[i].flags); 1140 // stream offset 1141 put_be64(pb, mxf->index_entries[i].offset); 1142 if (s->nb_streams > 1) 1143 put_be32(pb, mxf->index_entries[i].slice_offset); 1144 } 1145 1146 mxf->last_key_index = key_index - mxf->edit_units_count; 1147 mxf->last_indexed_edit_unit += mxf->edit_units_count; 1148 mxf->edit_units_count = 0; 1149 } 1150} 1151 1152static void mxf_write_klv_fill(AVFormatContext *s) 1153{ 1154 unsigned pad = klv_fill_size(url_ftell(s->pb)); 1155 if (pad) { 1156 put_buffer(s->pb, klv_fill_key, 16); 1157 pad -= 16 + 4; 1158 klv_encode_ber4_length(s->pb, pad); 1159 for (; pad; pad--) 1160 put_byte(s->pb, 0); 1161 assert(!(url_ftell(s->pb) & (KAG_SIZE-1))); 1162 } 1163} 1164 1165static void mxf_write_partition(AVFormatContext *s, int bodysid, 1166 int indexsid, 1167 const uint8_t *key, int write_metadata) 1168{ 1169 MXFContext *mxf = s->priv_data; 1170 ByteIOContext *pb = s->pb; 1171 int64_t header_byte_count_offset; 1172 unsigned index_byte_count = 0; 1173 uint64_t partition_offset = url_ftell(pb); 1174 1175 if (!mxf->edit_unit_byte_count && mxf->edit_units_count) 1176 index_byte_count = 85 + 12+(s->nb_streams+1)*6 + 1177 12+mxf->edit_units_count*(11+mxf->slice_count*4); 1178 else if (mxf->edit_unit_byte_count && indexsid) 1179 index_byte_count = 80; 1180 1181 if (index_byte_count) { 1182 // add encoded ber length 1183 index_byte_count += 16 + klv_ber_length(index_byte_count); 1184 index_byte_count += klv_fill_size(index_byte_count); 1185 } 1186 1187 if (!memcmp(key, body_partition_key, 16)) { 1188 mxf->body_partition_offset = 1189 av_realloc(mxf->body_partition_offset, 1190 (mxf->body_partitions_count+1)* 1191 sizeof(*mxf->body_partition_offset)); 1192 mxf->body_partition_offset[mxf->body_partitions_count++] = partition_offset; 1193 } 1194 1195 // write klv 1196 put_buffer(pb, key, 16); 1197 klv_encode_ber_length(pb, 88 + 16 * mxf->essence_container_count); 1198 1199 // write partition value 1200 put_be16(pb, 1); // majorVersion 1201 put_be16(pb, 2); // minorVersion 1202 put_be32(pb, KAG_SIZE); // KAGSize 1203 1204 put_be64(pb, partition_offset); // ThisPartition 1205 1206 if (!memcmp(key, body_partition_key, 16) && mxf->body_partitions_count > 1) 1207 put_be64(pb, mxf->body_partition_offset[mxf->body_partitions_count-2]); // PreviousPartition 1208 else if (!memcmp(key, footer_partition_key, 16) && mxf->body_partitions_count) 1209 put_be64(pb, mxf->body_partition_offset[mxf->body_partitions_count-1]); // PreviousPartition 1210 else 1211 put_be64(pb, 0); 1212 1213 put_be64(pb, mxf->footer_partition_offset); // footerPartition 1214 1215 // set offset 1216 header_byte_count_offset = url_ftell(pb); 1217 put_be64(pb, 0); // headerByteCount, update later 1218 1219 // indexTable 1220 put_be64(pb, index_byte_count); // indexByteCount 1221 put_be32(pb, index_byte_count ? indexsid : 0); // indexSID 1222 1223 // BodyOffset 1224 if (bodysid && mxf->edit_units_count && mxf->body_partitions_count) { 1225 put_be64(pb, mxf->body_offset); 1226 } else 1227 put_be64(pb, 0); 1228 1229 put_be32(pb, bodysid); // bodySID 1230 1231 // operational pattern 1232 put_buffer(pb, op1a_ul, 16); 1233 1234 // essence container 1235 mxf_write_essence_container_refs(s); 1236 1237 if (write_metadata) { 1238 // mark the start of the headermetadata and calculate metadata size 1239 int64_t pos, start; 1240 unsigned header_byte_count; 1241 1242 mxf_write_klv_fill(s); 1243 start = url_ftell(s->pb); 1244 mxf_write_primer_pack(s); 1245 mxf_write_header_metadata_sets(s); 1246 pos = url_ftell(s->pb); 1247 header_byte_count = pos - start + klv_fill_size(pos); 1248 1249 // update header_byte_count 1250 url_fseek(pb, header_byte_count_offset, SEEK_SET); 1251 put_be64(pb, header_byte_count); 1252 url_fseek(pb, pos, SEEK_SET); 1253 } 1254 1255 put_flush_packet(pb); 1256} 1257 1258static const UID mxf_mpeg2_codec_uls[] = { 1259 { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x03,0x04,0x01,0x02,0x02,0x01,0x01,0x10,0x00 }, // MP-ML I-Frame 1260 { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x03,0x04,0x01,0x02,0x02,0x01,0x01,0x11,0x00 }, // MP-ML Long GOP 1261 { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x03,0x04,0x01,0x02,0x02,0x01,0x02,0x02,0x00 }, // 422P-ML I-Frame 1262 { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x03,0x04,0x01,0x02,0x02,0x01,0x02,0x03,0x00 }, // 422P-ML Long GOP 1263 { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x03,0x04,0x01,0x02,0x02,0x01,0x03,0x02,0x00 }, // MP-HL I-Frame 1264 { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x03,0x04,0x01,0x02,0x02,0x01,0x03,0x03,0x00 }, // MP-HL Long GOP 1265 { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x03,0x04,0x01,0x02,0x02,0x01,0x04,0x02,0x00 }, // 422P-HL I-Frame 1266 { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x03,0x04,0x01,0x02,0x02,0x01,0x04,0x03,0x00 }, // 422P-HL Long GOP 1267}; 1268 1269static const UID *mxf_get_mpeg2_codec_ul(AVCodecContext *avctx) 1270{ 1271 if (avctx->profile == 4) { // Main 1272 if (avctx->level == 8) // Main 1273 return avctx->gop_size ? 1274 &mxf_mpeg2_codec_uls[1] : 1275 &mxf_mpeg2_codec_uls[0]; 1276 else if (avctx->level == 4) // High 1277 return avctx->gop_size ? 1278 &mxf_mpeg2_codec_uls[5] : 1279 &mxf_mpeg2_codec_uls[4]; 1280 } else if (avctx->profile == 0) { // 422 1281 if (avctx->level == 5) // Main 1282 return avctx->gop_size ? 1283 &mxf_mpeg2_codec_uls[3] : 1284 &mxf_mpeg2_codec_uls[2]; 1285 else if (avctx->level == 2) // High 1286 return avctx->gop_size ? 1287 &mxf_mpeg2_codec_uls[7] : 1288 &mxf_mpeg2_codec_uls[6]; 1289 } 1290 return NULL; 1291} 1292 1293static int mxf_parse_mpeg2_frame(AVFormatContext *s, AVStream *st, AVPacket *pkt, int *flags) 1294{ 1295 MXFStreamContext *sc = st->priv_data; 1296 MXFContext *mxf = s->priv_data; 1297 uint32_t c = -1; 1298 int i; 1299 1300 *flags = 0; 1301 1302 for(i = 0; i < pkt->size - 4; i++) { 1303 c = (c<<8) + pkt->data[i]; 1304 if (c == 0x1B5) { 1305 if (i + 2 < pkt->size && (pkt->data[i+1] & 0xf0) == 0x10) { // seq ext 1306 st->codec->profile = pkt->data[i+1] & 0x07; 1307 st->codec->level = pkt->data[i+2] >> 4; 1308 } else if (i + 5 < pkt->size && (pkt->data[i+1] & 0xf0) == 0x80) { // pict coding ext 1309 sc->interlaced = !(pkt->data[i+5] & 0x80); // progressive frame 1310 break; 1311 } 1312 } else if (c == 0x1b8) { // gop 1313 if (i + 4 < pkt->size) { 1314 if (pkt->data[i+4]>>6 & 0x01) // closed 1315 *flags |= 0x80; // random access 1316 if (!mxf->header_written) { 1317 unsigned hours = (pkt->data[i+1]>>2) & 0x1f; 1318 unsigned minutes = ((pkt->data[i+1] & 0x03) << 4) | (pkt->data[i+2]>>4); 1319 unsigned seconds = ((pkt->data[i+2] & 0x07) << 3) | (pkt->data[i+3]>>5); 1320 unsigned frames = ((pkt->data[i+3] & 0x1f) << 1) | (pkt->data[i+4]>>7); 1321 mxf->timecode_drop_frame = !!(pkt->data[i+1] & 0x80); 1322 mxf->timecode_start = (hours*3600 + minutes*60 + seconds) * 1323 mxf->timecode_base + frames; 1324 if (mxf->timecode_drop_frame) { 1325 unsigned tminutes = 60 * hours + minutes; 1326 mxf->timecode_start -= 2 * (tminutes - tminutes / 10); 1327 } 1328 av_log(s, AV_LOG_DEBUG, "frame %d %d:%d:%d%c%d\n", mxf->timecode_start, 1329 hours, minutes, seconds, mxf->timecode_drop_frame ? ';':':', frames); 1330 } 1331 } 1332 } else if (c == 0x1b3) { // seq 1333 *flags |= 0x40; 1334 if (i + 4 < pkt->size) { 1335 switch ((pkt->data[i+4]>>4) & 0xf) { 1336 case 2: sc->aspect_ratio = (AVRational){ 4, 3}; break; 1337 case 3: sc->aspect_ratio = (AVRational){ 16, 9}; break; 1338 case 4: sc->aspect_ratio = (AVRational){221,100}; break; 1339 default: 1340 av_reduce(&sc->aspect_ratio.num, &sc->aspect_ratio.den, 1341 st->codec->width, st->codec->height, 1024*1024); 1342 } 1343 } 1344 } else if (c == 0x100) { // pic 1345 int pict_type = (pkt->data[i+2]>>3) & 0x07; 1346 if (pict_type == 2) { // P frame 1347 *flags |= 0x22; 1348 st->codec->gop_size = 1; 1349 } else if (pict_type == 3) { // B frame 1350 *flags |= 0x33; 1351 sc->temporal_reordering = -1; 1352 } else if (!pict_type) { 1353 av_log(s, AV_LOG_ERROR, "error parsing mpeg2 frame\n"); 1354 return 0; 1355 } 1356 } 1357 } 1358 if (s->oformat != &mxf_d10_muxer) 1359 sc->codec_ul = mxf_get_mpeg2_codec_ul(st->codec); 1360 return !!sc->codec_ul; 1361} 1362 1363static uint64_t mxf_parse_timestamp(time_t timestamp) 1364{ 1365 struct tm *time = localtime(×tamp); 1366 return (uint64_t)(time->tm_year+1900) << 48 | 1367 (uint64_t)(time->tm_mon+1) << 40 | 1368 (uint64_t) time->tm_mday << 32 | 1369 time->tm_hour << 24 | 1370 time->tm_min << 16 | 1371 time->tm_sec << 8; 1372} 1373 1374static int mxf_write_header(AVFormatContext *s) 1375{ 1376 MXFContext *mxf = s->priv_data; 1377 int i; 1378 uint8_t present[FF_ARRAY_ELEMS(mxf_essence_container_uls)] = {0}; 1379 const int *samples_per_frame = NULL; 1380 1381 for (i = 0; i < s->nb_streams; i++) { 1382 AVStream *st = s->streams[i]; 1383 MXFStreamContext *sc = av_mallocz(sizeof(*sc)); 1384 if (!sc) 1385 return AVERROR(ENOMEM); 1386 st->priv_data = sc; 1387 1388 if (st->codec->codec_type == CODEC_TYPE_VIDEO) { 1389 if (i != 0) { 1390 av_log(s, AV_LOG_ERROR, "video stream must be first track\n"); 1391 return -1; 1392 } 1393 if (fabs(av_q2d(st->codec->time_base) - 1/25.0) < 0.0001) { 1394 samples_per_frame = PAL_samples_per_frame; 1395 mxf->time_base = (AVRational){ 1, 25 }; 1396 mxf->timecode_base = 25; 1397 } else if (fabs(av_q2d(st->codec->time_base) - 1001/30000.0) < 0.0001) { 1398 samples_per_frame = NTSC_samples_per_frame; 1399 mxf->time_base = (AVRational){ 1001, 30000 }; 1400 mxf->timecode_base = 30; 1401 } else { 1402 av_log(s, AV_LOG_ERROR, "unsupported video frame rate\n"); 1403 return -1; 1404 } 1405 av_set_pts_info(st, 64, mxf->time_base.num, mxf->time_base.den); 1406 if (s->oformat == &mxf_d10_muxer) { 1407 if (st->codec->bit_rate == 50000000) 1408 if (mxf->time_base.den == 25) sc->index = 3; 1409 else sc->index = 5; 1410 else if (st->codec->bit_rate == 40000000) 1411 if (mxf->time_base.den == 25) sc->index = 7; 1412 else sc->index = 9; 1413 else if (st->codec->bit_rate == 30000000) 1414 if (mxf->time_base.den == 25) sc->index = 11; 1415 else sc->index = 13; 1416 else { 1417 av_log(s, AV_LOG_ERROR, "error MXF D-10 only support 30/40/50 mbit/s\n"); 1418 return -1; 1419 } 1420 1421 mxf->edit_unit_byte_count = KAG_SIZE; // system element 1422 mxf->edit_unit_byte_count += 16 + 4 + (uint64_t)st->codec->bit_rate * 1423 mxf->time_base.num / (8*mxf->time_base.den); 1424 mxf->edit_unit_byte_count += klv_fill_size(mxf->edit_unit_byte_count); 1425 mxf->edit_unit_byte_count += 16 + 4 + 4 + samples_per_frame[0]*8*4; 1426 mxf->edit_unit_byte_count += klv_fill_size(mxf->edit_unit_byte_count); 1427 } 1428 } else if (st->codec->codec_type == CODEC_TYPE_AUDIO) { 1429 if (st->codec->sample_rate != 48000) { 1430 av_log(s, AV_LOG_ERROR, "only 48khz is implemented\n"); 1431 return -1; 1432 } 1433 av_set_pts_info(st, 64, 1, st->codec->sample_rate); 1434 if (s->oformat == &mxf_d10_muxer) { 1435 if (st->index != 1) { 1436 av_log(s, AV_LOG_ERROR, "MXF D-10 only support one audio track\n"); 1437 return -1; 1438 } 1439 if (st->codec->codec_id != CODEC_ID_PCM_S16LE && 1440 st->codec->codec_id != CODEC_ID_PCM_S24LE) { 1441 av_log(s, AV_LOG_ERROR, "MXF D-10 only support 16 or 24 bits le audio\n"); 1442 } 1443 sc->index = ((MXFStreamContext*)s->streams[0]->priv_data)->index + 1; 1444 } else 1445 mxf->slice_count = 1; 1446 } 1447 1448 if (!sc->index) { 1449 sc->index = mxf_get_essence_container_ul_index(st->codec->codec_id); 1450 if (sc->index == -1) { 1451 av_log(s, AV_LOG_ERROR, "track %d: could not find essence container ul, " 1452 "codec not currently supported in container\n", i); 1453 return -1; 1454 } 1455 } 1456 1457 sc->codec_ul = &mxf_essence_container_uls[sc->index].codec_ul; 1458 1459 memcpy(sc->track_essence_element_key, mxf_essence_container_uls[sc->index].element_ul, 15); 1460 sc->track_essence_element_key[15] = present[sc->index]; 1461 PRINT_KEY(s, "track essence element key", sc->track_essence_element_key); 1462 1463 if (!present[sc->index]) 1464 mxf->essence_container_count++; 1465 present[sc->index]++; 1466 } 1467 1468 if (s->oformat == &mxf_d10_muxer) { 1469 mxf->essence_container_count = 1; 1470 } 1471 1472 for (i = 0; i < s->nb_streams; i++) { 1473 MXFStreamContext *sc = s->streams[i]->priv_data; 1474 // update element count 1475 sc->track_essence_element_key[13] = present[sc->index]; 1476 sc->order = AV_RB32(sc->track_essence_element_key+12); 1477 } 1478 1479 mxf->timestamp = mxf_parse_timestamp(s->timestamp); 1480 mxf->duration = -1; 1481 1482 mxf->timecode_track = av_mallocz(sizeof(*mxf->timecode_track)); 1483 if (!mxf->timecode_track) 1484 return AVERROR(ENOMEM); 1485 mxf->timecode_track->priv_data = av_mallocz(sizeof(MXFStreamContext)); 1486 if (!mxf->timecode_track->priv_data) 1487 return AVERROR(ENOMEM); 1488 mxf->timecode_track->index = -1; 1489 1490 if (!samples_per_frame) 1491 samples_per_frame = PAL_samples_per_frame; 1492 1493 if (ff_audio_interleave_init(s, samples_per_frame, mxf->time_base) < 0) 1494 return -1; 1495 1496 return 0; 1497} 1498 1499static const uint8_t system_metadata_pack_key[] = { 0x06,0x0E,0x2B,0x34,0x02,0x05,0x01,0x01,0x0D,0x01,0x03,0x01,0x04,0x01,0x01,0x00 }; 1500static const uint8_t system_metadata_package_set_key[] = { 0x06,0x0E,0x2B,0x34,0x02,0x43,0x01,0x01,0x0D,0x01,0x03,0x01,0x04,0x01,0x02,0x01 }; 1501 1502static uint32_t ff_framenum_to_12m_time_code(unsigned frame, int drop, int fps) 1503{ 1504 return (0 << 31) | // color frame flag 1505 (0 << 30) | // drop frame flag 1506 ( ((frame % fps) / 10) << 28) | // tens of frames 1507 ( ((frame % fps) % 10) << 24) | // units of frames 1508 (0 << 23) | // field phase (NTSC), b0 (PAL) 1509 ((((frame / fps) % 60) / 10) << 20) | // tens of seconds 1510 ((((frame / fps) % 60) % 10) << 16) | // units of seconds 1511 (0 << 15) | // b0 (NTSC), b2 (PAL) 1512 ((((frame / (fps * 60)) % 60) / 10) << 12) | // tens of minutes 1513 ((((frame / (fps * 60)) % 60) % 10) << 8) | // units of minutes 1514 (0 << 7) | // b1 1515 (0 << 6) | // b2 (NSC), field phase (PAL) 1516 ((((frame / (fps * 3600) % 24)) / 10) << 4) | // tens of hours 1517 ( (frame / (fps * 3600) % 24)) % 10; // units of hours 1518} 1519 1520static void mxf_write_system_item(AVFormatContext *s) 1521{ 1522 MXFContext *mxf = s->priv_data; 1523 ByteIOContext *pb = s->pb; 1524 unsigned frame; 1525 uint32_t time_code; 1526 1527 frame = mxf->timecode_start + mxf->last_indexed_edit_unit + mxf->edit_units_count; 1528 1529 // write system metadata pack 1530 put_buffer(pb, system_metadata_pack_key, 16); 1531 klv_encode_ber4_length(pb, 57); 1532 put_byte(pb, 0x5c); // UL, user date/time stamp, picture and sound item present 1533 put_byte(pb, 0x04); // content package rate 1534 put_byte(pb, 0x00); // content package type 1535 put_be16(pb, 0x00); // channel handle 1536 put_be16(pb, frame); // continuity count 1537 if (mxf->essence_container_count > 1) 1538 put_buffer(pb, multiple_desc_ul, 16); 1539 else { 1540 MXFStreamContext *sc = s->streams[0]->priv_data; 1541 put_buffer(pb, mxf_essence_container_uls[sc->index].container_ul, 16); 1542 } 1543 put_byte(pb, 0); 1544 put_be64(pb, 0); 1545 put_be64(pb, 0); // creation date/time stamp 1546 1547 put_byte(pb, 0x81); // SMPTE 12M time code 1548 time_code = ff_framenum_to_12m_time_code(frame, mxf->timecode_drop_frame, mxf->timecode_base); 1549 put_be32(pb, time_code); 1550 put_be32(pb, 0); // binary group data 1551 put_be64(pb, 0); 1552 1553 // write system metadata package set 1554 put_buffer(pb, system_metadata_package_set_key, 16); 1555 klv_encode_ber4_length(pb, 35); 1556 put_byte(pb, 0x83); // UMID 1557 put_be16(pb, 0x20); 1558 mxf_write_umid(pb, SourcePackage, 0); 1559} 1560 1561static void mxf_write_d10_video_packet(AVFormatContext *s, AVStream *st, AVPacket *pkt) 1562{ 1563 MXFContext *mxf = s->priv_data; 1564 ByteIOContext *pb = s->pb; 1565 int packet_size = (uint64_t)st->codec->bit_rate*mxf->time_base.num / 1566 (8*mxf->time_base.den); // frame size 1567 int pad; 1568 1569 packet_size += 16 + 4; 1570 packet_size += klv_fill_size(packet_size); 1571 1572 klv_encode_ber4_length(pb, pkt->size); 1573 put_buffer(pb, pkt->data, pkt->size); 1574 1575 // ensure CBR muxing by padding to correct video frame size 1576 pad = packet_size - pkt->size - 16 - 4; 1577 if (pad > 20) { 1578 put_buffer(s->pb, klv_fill_key, 16); 1579 pad -= 16 + 4; 1580 klv_encode_ber4_length(s->pb, pad); 1581 for (; pad; pad--) 1582 put_byte(s->pb, 0); 1583 assert(!(url_ftell(s->pb) & (KAG_SIZE-1))); 1584 } else { 1585 av_log(s, AV_LOG_WARNING, "cannot fill d-10 video packet\n"); 1586 for (; pad > 0; pad--) 1587 put_byte(s->pb, 0); 1588 } 1589} 1590 1591static void mxf_write_d10_audio_packet(AVFormatContext *s, AVStream *st, AVPacket *pkt) 1592{ 1593 MXFContext *mxf = s->priv_data; 1594 ByteIOContext *pb = s->pb; 1595 int frame_size = pkt->size / st->codec->block_align; 1596 uint8_t *samples = pkt->data; 1597 uint8_t *end = pkt->data + pkt->size; 1598 int i; 1599 1600 klv_encode_ber4_length(pb, 4 + frame_size*4*8); 1601 1602 put_byte(pb, (frame_size == 1920 ? 0 : (mxf->edit_units_count-1) % 5 + 1)); 1603 put_le16(pb, frame_size); 1604 put_byte(pb, (1<<st->codec->channels)-1); 1605 1606 while (samples < end) { 1607 for (i = 0; i < st->codec->channels; i++) { 1608 uint32_t sample; 1609 if (st->codec->codec_id == CODEC_ID_PCM_S24LE) { 1610 sample = AV_RL24(samples)<< 4; 1611 samples += 3; 1612 } else { 1613 sample = AV_RL16(samples)<<12; 1614 samples += 2; 1615 } 1616 put_le32(pb, sample | i); 1617 } 1618 for (; i < 8; i++) 1619 put_le32(pb, i); 1620 } 1621} 1622 1623static int mxf_write_packet(AVFormatContext *s, AVPacket *pkt) 1624{ 1625 MXFContext *mxf = s->priv_data; 1626 ByteIOContext *pb = s->pb; 1627 AVStream *st = s->streams[pkt->stream_index]; 1628 MXFStreamContext *sc = st->priv_data; 1629 int flags = 0; 1630 1631 if (!mxf->edit_unit_byte_count && !(mxf->edit_units_count % EDIT_UNITS_PER_BODY)) { 1632 mxf->index_entries = av_realloc(mxf->index_entries, 1633 (mxf->edit_units_count + EDIT_UNITS_PER_BODY)*sizeof(*mxf->index_entries)); 1634 if (!mxf->index_entries) { 1635 av_log(s, AV_LOG_ERROR, "could not allocate index entries\n"); 1636 return -1; 1637 } 1638 } 1639 1640 if (st->codec->codec_id == CODEC_ID_MPEG2VIDEO) { 1641 if (!mxf_parse_mpeg2_frame(s, st, pkt, &flags)) { 1642 av_log(s, AV_LOG_ERROR, "could not get mpeg2 profile and level\n"); 1643 return -1; 1644 } 1645 } 1646 1647 if (!mxf->header_written) { 1648 if (mxf->edit_unit_byte_count) { 1649 mxf_write_partition(s, 1, 2, header_open_partition_key, 1); 1650 mxf_write_klv_fill(s); 1651 mxf_write_index_table_segment(s); 1652 } else { 1653 mxf_write_partition(s, 0, 0, header_open_partition_key, 1); 1654 } 1655 mxf->header_written = 1; 1656 } 1657 1658 if (st->index == 0) { 1659 if (!mxf->edit_unit_byte_count && 1660 (!mxf->edit_units_count || mxf->edit_units_count > EDIT_UNITS_PER_BODY) && 1661 !(flags & 0x33)) { // I frame, Gop start 1662 mxf_write_klv_fill(s); 1663 mxf_write_partition(s, 1, 2, body_partition_key, 0); 1664 1665 mxf_write_klv_fill(s); 1666 mxf_write_index_table_segment(s); 1667 } 1668 1669 mxf_write_klv_fill(s); 1670 mxf_write_system_item(s); 1671 1672 if (!mxf->edit_unit_byte_count) { 1673 mxf->index_entries[mxf->edit_units_count].offset = mxf->body_offset; 1674 mxf->index_entries[mxf->edit_units_count].flags = flags; 1675 mxf->body_offset += KAG_SIZE; // size of system element 1676 } 1677 mxf->edit_units_count++; 1678 } else if (!mxf->edit_unit_byte_count && st->index == 1) { 1679 mxf->index_entries[mxf->edit_units_count-1].slice_offset = 1680 mxf->body_offset - mxf->index_entries[mxf->edit_units_count-1].offset; 1681 } 1682 1683 mxf_write_klv_fill(s); 1684 put_buffer(pb, sc->track_essence_element_key, 16); // write key 1685 if (s->oformat == &mxf_d10_muxer) { 1686 if (st->codec->codec_type == CODEC_TYPE_VIDEO) 1687 mxf_write_d10_video_packet(s, st, pkt); 1688 else 1689 mxf_write_d10_audio_packet(s, st, pkt); 1690 } else { 1691 klv_encode_ber4_length(pb, pkt->size); // write length 1692 put_buffer(pb, pkt->data, pkt->size); 1693 mxf->body_offset += 16+4+pkt->size + klv_fill_size(16+4+pkt->size); 1694 } 1695 1696 put_flush_packet(pb); 1697 1698 return 0; 1699} 1700 1701static void mxf_write_random_index_pack(AVFormatContext *s) 1702{ 1703 MXFContext *mxf = s->priv_data; 1704 ByteIOContext *pb = s->pb; 1705 uint64_t pos = url_ftell(pb); 1706 int i; 1707 1708 put_buffer(pb, random_index_pack_key, 16); 1709 klv_encode_ber_length(pb, 28 + 12*mxf->body_partitions_count); 1710 1711 if (mxf->edit_unit_byte_count) 1712 put_be32(pb, 1); // BodySID of header partition 1713 else 1714 put_be32(pb, 0); 1715 put_be64(pb, 0); // offset of header partition 1716 1717 for (i = 0; i < mxf->body_partitions_count; i++) { 1718 put_be32(pb, 1); // BodySID 1719 put_be64(pb, mxf->body_partition_offset[i]); 1720 } 1721 1722 put_be32(pb, 0); // BodySID of footer partition 1723 put_be64(pb, mxf->footer_partition_offset); 1724 1725 put_be32(pb, url_ftell(pb) - pos + 4); 1726} 1727 1728static int mxf_write_footer(AVFormatContext *s) 1729{ 1730 MXFContext *mxf = s->priv_data; 1731 ByteIOContext *pb = s->pb; 1732 1733 mxf->duration = mxf->last_indexed_edit_unit + mxf->edit_units_count; 1734 1735 mxf_write_klv_fill(s); 1736 mxf->footer_partition_offset = url_ftell(pb); 1737 if (mxf->edit_unit_byte_count) { // no need to repeat index 1738 mxf_write_partition(s, 0, 0, footer_partition_key, 0); 1739 } else { 1740 mxf_write_partition(s, 0, 2, footer_partition_key, 0); 1741 1742 mxf_write_klv_fill(s); 1743 mxf_write_index_table_segment(s); 1744 } 1745 1746 mxf_write_klv_fill(s); 1747 mxf_write_random_index_pack(s); 1748 1749 if (!url_is_streamed(s->pb)) { 1750 url_fseek(pb, 0, SEEK_SET); 1751 if (mxf->edit_unit_byte_count) { 1752 mxf_write_partition(s, 1, 2, header_closed_partition_key, 1); 1753 mxf_write_klv_fill(s); 1754 mxf_write_index_table_segment(s); 1755 } else { 1756 mxf_write_partition(s, 0, 0, header_closed_partition_key, 1); 1757 } 1758 } 1759 1760 put_flush_packet(pb); 1761 1762 ff_audio_interleave_close(s); 1763 1764 av_freep(&mxf->index_entries); 1765 av_freep(&mxf->body_partition_offset); 1766 av_freep(&mxf->timecode_track->priv_data); 1767 av_freep(&mxf->timecode_track); 1768 1769 mxf_free(s); 1770 1771 return 0; 1772} 1773 1774static int mxf_interleave_get_packet(AVFormatContext *s, AVPacket *out, AVPacket *pkt, int flush) 1775{ 1776 AVPacketList *pktl; 1777 int stream_count = 0; 1778 int streams[MAX_STREAMS]; 1779 1780 memset(streams, 0, sizeof(streams)); 1781 pktl = s->packet_buffer; 1782 while (pktl) { 1783 //av_log(s, AV_LOG_DEBUG, "show st:%d dts:%lld\n", pktl->pkt.stream_index, pktl->pkt.dts); 1784 if (!streams[pktl->pkt.stream_index]) 1785 stream_count++; 1786 streams[pktl->pkt.stream_index]++; 1787 pktl = pktl->next; 1788 } 1789 1790 if (stream_count && (s->nb_streams == stream_count || flush)) { 1791 pktl = s->packet_buffer; 1792 if (s->nb_streams != stream_count) { 1793 AVPacketList *last = NULL; 1794 // find last packet in edit unit 1795 while (pktl) { 1796 if (!stream_count || pktl->pkt.stream_index == 0) 1797 break; 1798 last = pktl; 1799 pktl = pktl->next; 1800 stream_count--; 1801 } 1802 // purge packet queue 1803 while (pktl) { 1804 AVPacketList *next = pktl->next; 1805 av_free_packet(&pktl->pkt); 1806 av_freep(&pktl); 1807 pktl = next; 1808 } 1809 if (last) 1810 last->next = NULL; 1811 else { 1812 s->packet_buffer = NULL; 1813 goto out; 1814 } 1815 pktl = s->packet_buffer; 1816 } 1817 1818 *out = pktl->pkt; 1819 //av_log(s, AV_LOG_DEBUG, "out st:%d dts:%lld\n", (*out).stream_index, (*out).dts); 1820 s->packet_buffer = pktl->next; 1821 av_freep(&pktl); 1822 return 1; 1823 } else { 1824 out: 1825 av_init_packet(out); 1826 return 0; 1827 } 1828} 1829 1830static int mxf_compare_timestamps(AVFormatContext *s, AVPacket *next, AVPacket *pkt) 1831{ 1832 MXFStreamContext *sc = s->streams[pkt ->stream_index]->priv_data; 1833 MXFStreamContext *sc2 = s->streams[next->stream_index]->priv_data; 1834 1835 return next->dts > pkt->dts || 1836 (next->dts == pkt->dts && sc->order < sc2->order); 1837} 1838 1839static int mxf_interleave(AVFormatContext *s, AVPacket *out, AVPacket *pkt, int flush) 1840{ 1841 return ff_audio_rechunk_interleave(s, out, pkt, flush, 1842 mxf_interleave_get_packet, mxf_compare_timestamps); 1843} 1844 1845AVOutputFormat mxf_muxer = { 1846 "mxf", 1847 NULL_IF_CONFIG_SMALL("Material eXchange Format"), 1848 "application/mxf", 1849 "mxf", 1850 sizeof(MXFContext), 1851 CODEC_ID_PCM_S16LE, 1852 CODEC_ID_MPEG2VIDEO, 1853 mxf_write_header, 1854 mxf_write_packet, 1855 mxf_write_footer, 1856 AVFMT_NOTIMESTAMPS, 1857 NULL, 1858 mxf_interleave, 1859}; 1860 1861AVOutputFormat mxf_d10_muxer = { 1862 "mxf_d10", 1863 NULL_IF_CONFIG_SMALL("Material eXchange Format, D-10 Mapping"), 1864 "application/mxf", 1865 NULL, 1866 sizeof(MXFContext), 1867 CODEC_ID_PCM_S16LE, 1868 CODEC_ID_MPEG2VIDEO, 1869 mxf_write_header, 1870 mxf_write_packet, 1871 mxf_write_footer, 1872 AVFMT_NOTIMESTAMPS, 1873 NULL, 1874 mxf_interleave, 1875}; 1876