ffmpeg / libavformat / mxfenc.c @ a2704c97
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/*
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* MXF muxer
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* Copyright (c) 2008 GUCAS, Zhentan Feng <spyfeng at gmail dot com>
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* Copyright (c) 2008 Baptiste Coudurier <baptiste dot coudurier at gmail dot com>
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*
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* This file is part of FFmpeg.
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*
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* FFmpeg is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2.1 of the License, or (at your option) any later version.
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*
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* FFmpeg is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with FFmpeg; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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*/
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/*
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* References
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* SMPTE 336M KLV Data Encoding Protocol Using Key-Length-Value
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* SMPTE 377M MXF File Format Specifications
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* SMPTE 379M MXF Generic Container
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* SMPTE 381M Mapping MPEG Streams into the MXF Generic Container
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* SMPTE RP210: SMPTE Metadata Dictionary
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* SMPTE RP224: Registry of SMPTE Universal Labels
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*/
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//#define DEBUG
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#include <math.h> |
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#include <time.h> |
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#include "libavutil/random_seed.h" |
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#include "libavcodec/bytestream.h" |
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#include "audiointerleave.h" |
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#include "avformat.h" |
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#include "mxf.h" |
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static const int NTSC_samples_per_frame[] = { 1602, 1601, 1602, 1601, 1602, 0 }; |
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static const int PAL_samples_per_frame[] = { 1920, 0 }; |
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extern AVOutputFormat ff_mxf_d10_muxer;
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#define EDIT_UNITS_PER_BODY 250 |
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#define KAG_SIZE 512 |
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typedef struct { |
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int local_tag;
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UID uid; |
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} MXFLocalTagPair; |
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typedef struct { |
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uint8_t flags; |
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uint64_t offset; |
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unsigned slice_offset; ///< offset of audio slice |
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uint16_t temporal_ref; |
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} MXFIndexEntry; |
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typedef struct { |
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AudioInterleaveContext aic; |
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UID track_essence_element_key; |
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int index; ///< index in mxf_essence_container_uls table |
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const UID *codec_ul;
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int order; ///< interleaving order if dts are equal |
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int interlaced; ///< wether picture is interlaced |
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int temporal_reordering;
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AVRational aspect_ratio; ///< display aspect ratio
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int closed_gop; ///< gop is closed, used in mpeg-2 frame parsing |
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} MXFStreamContext; |
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typedef struct { |
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UID container_ul; |
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UID element_ul; |
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UID codec_ul; |
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void (*write_desc)(AVFormatContext *, AVStream *);
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} MXFContainerEssenceEntry; |
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static const struct { |
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enum CodecID id;
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int index;
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} mxf_essence_mappings[] = {
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{ CODEC_ID_MPEG2VIDEO, 0 },
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{ CODEC_ID_PCM_S24LE, 1 },
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{ CODEC_ID_PCM_S16LE, 1 },
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{ CODEC_ID_NONE }
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}; |
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static void mxf_write_wav_desc(AVFormatContext *s, AVStream *st); |
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static void mxf_write_aes3_desc(AVFormatContext *s, AVStream *st); |
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static void mxf_write_mpegvideo_desc(AVFormatContext *s, AVStream *st); |
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static void mxf_write_cdci_desc(AVFormatContext *s, AVStream *st); |
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static void mxf_write_generic_sound_desc(AVFormatContext *s, AVStream *st); |
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static const MXFContainerEssenceEntry mxf_essence_container_uls[] = { |
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{ { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x02,0x0D,0x01,0x03,0x01,0x02,0x04,0x60,0x01 },
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{ 0x06,0x0E,0x2B,0x34,0x01,0x02,0x01,0x01,0x0D,0x01,0x03,0x01,0x15,0x01,0x05,0x00 },
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{ 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x03,0x04,0x01,0x02,0x02,0x01,0x00,0x00,0x00 },
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mxf_write_mpegvideo_desc }, |
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{ { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x0D,0x01,0x03,0x01,0x02,0x06,0x03,0x00 },
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{ 0x06,0x0E,0x2B,0x34,0x01,0x02,0x01,0x01,0x0D,0x01,0x03,0x01,0x16,0x01,0x03,0x00 },
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{ 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x04,0x02,0x02,0x01,0x00,0x00,0x00,0x00 },
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mxf_write_aes3_desc }, |
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{ { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x0D,0x01,0x03,0x01,0x02,0x06,0x01,0x00 },
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{ 0x06,0x0E,0x2B,0x34,0x01,0x02,0x01,0x01,0x0D,0x01,0x03,0x01,0x16,0x01,0x01,0x00 },
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{ 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x04,0x02,0x02,0x01,0x00,0x00,0x00,0x00 },
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mxf_write_wav_desc }, |
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// D-10 625/50 PAL 50mb/s
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{ { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x0D,0x01,0x03,0x01,0x02,0x01,0x01,0x01 },
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{ 0x06,0x0E,0x2B,0x34,0x01,0x02,0x01,0x01,0x0D,0x01,0x03,0x01,0x05,0x01,0x01,0x00 },
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{ 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x04,0x01,0x02,0x02,0x01,0x02,0x01,0x01 },
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mxf_write_cdci_desc }, |
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{ { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x0D,0x01,0x03,0x01,0x02,0x01,0x01,0x01 },
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{ 0x06,0x0E,0x2B,0x34,0x01,0x02,0x01,0x01,0x0D,0x01,0x03,0x01,0x06,0x01,0x10,0x00 },
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{ 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x04,0x02,0x02,0x01,0x00,0x00,0x00,0x00 },
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mxf_write_generic_sound_desc }, |
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// D-10 525/60 NTSC 50mb/s
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{ { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x0D,0x01,0x03,0x01,0x02,0x01,0x02,0x01 },
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{ 0x06,0x0E,0x2B,0x34,0x01,0x02,0x01,0x01,0x0D,0x01,0x03,0x01,0x05,0x01,0x01,0x00 },
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{ 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x04,0x01,0x02,0x02,0x01,0x02,0x01,0x02 },
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mxf_write_cdci_desc }, |
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{ { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x0D,0x01,0x03,0x01,0x02,0x01,0x02,0x01 },
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{ 0x06,0x0E,0x2B,0x34,0x01,0x02,0x01,0x01,0x0D,0x01,0x03,0x01,0x06,0x01,0x10,0x00 },
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{ 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x04,0x02,0x02,0x01,0x00,0x00,0x00,0x00 },
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mxf_write_generic_sound_desc }, |
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// D-10 625/50 PAL 40mb/s
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{ { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x0D,0x01,0x03,0x01,0x02,0x01,0x03,0x01 },
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{ 0x06,0x0E,0x2B,0x34,0x01,0x02,0x01,0x01,0x0D,0x01,0x03,0x01,0x05,0x01,0x01,0x00 },
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{ 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x04,0x01,0x02,0x02,0x01,0x02,0x01,0x03 },
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mxf_write_cdci_desc }, |
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{ { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x0D,0x01,0x03,0x01,0x02,0x01,0x03,0x01 },
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{ 0x06,0x0E,0x2B,0x34,0x01,0x02,0x01,0x01,0x0D,0x01,0x03,0x01,0x06,0x01,0x10,0x00 },
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{ 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x04,0x02,0x02,0x01,0x00,0x00,0x00,0x00 },
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mxf_write_generic_sound_desc }, |
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// D-10 525/60 NTSC 40mb/s
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{ { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x0D,0x01,0x03,0x01,0x02,0x01,0x04,0x01 },
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{ 0x06,0x0E,0x2B,0x34,0x01,0x02,0x01,0x01,0x0D,0x01,0x03,0x01,0x05,0x01,0x01,0x00 },
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{ 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x04,0x01,0x02,0x02,0x01,0x02,0x01,0x04 },
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mxf_write_cdci_desc }, |
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{ { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x0D,0x01,0x03,0x01,0x02,0x01,0x04,0x01 },
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{ 0x06,0x0E,0x2B,0x34,0x01,0x02,0x01,0x01,0x0D,0x01,0x03,0x01,0x06,0x01,0x10,0x00 },
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{ 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x04,0x02,0x02,0x01,0x00,0x00,0x00,0x00 },
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mxf_write_generic_sound_desc }, |
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// D-10 625/50 PAL 30mb/s
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{ { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x0D,0x01,0x03,0x01,0x02,0x01,0x05,0x01 },
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{ 0x06,0x0E,0x2B,0x34,0x01,0x02,0x01,0x01,0x0D,0x01,0x03,0x01,0x05,0x01,0x01,0x00 },
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{ 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x04,0x01,0x02,0x02,0x01,0x02,0x01,0x05 },
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mxf_write_cdci_desc }, |
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{ { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x0D,0x01,0x03,0x01,0x02,0x01,0x05,0x01 },
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{ 0x06,0x0E,0x2B,0x34,0x01,0x02,0x01,0x01,0x0D,0x01,0x03,0x01,0x06,0x01,0x10,0x00 },
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{ 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x04,0x02,0x02,0x01,0x00,0x00,0x00,0x00 },
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mxf_write_generic_sound_desc }, |
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// D-10 525/60 NTSC 30mb/s
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{ { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x0D,0x01,0x03,0x01,0x02,0x01,0x06,0x01 },
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{ 0x06,0x0E,0x2B,0x34,0x01,0x02,0x01,0x01,0x0D,0x01,0x03,0x01,0x05,0x01,0x01,0x00 },
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{ 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x04,0x01,0x02,0x02,0x01,0x02,0x01,0x06 },
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mxf_write_cdci_desc }, |
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{ { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x0D,0x01,0x03,0x01,0x02,0x01,0x06,0x01 },
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{ 0x06,0x0E,0x2B,0x34,0x01,0x02,0x01,0x01,0x0D,0x01,0x03,0x01,0x06,0x01,0x10,0x00 },
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{ 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x04,0x02,0x02,0x01,0x00,0x00,0x00,0x00 },
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mxf_write_generic_sound_desc }, |
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{ { 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00 },
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{ 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00 },
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{ 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00 },
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NULL },
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}; |
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typedef struct MXFContext { |
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int64_t footer_partition_offset; |
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int essence_container_count;
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AVRational time_base; |
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int header_written;
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MXFIndexEntry *index_entries; |
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unsigned edit_units_count;
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uint64_t timestamp; ///< timestamp, as year(16),month(8),day(8),hour(8),minutes(8),msec/4(8)
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uint8_t slice_count; ///< index slice count minus 1 (1 if no audio, 0 otherwise)
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int last_indexed_edit_unit;
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uint64_t *body_partition_offset; |
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unsigned body_partitions_count;
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int last_key_index; ///< index of last key frame |
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uint64_t duration; |
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AVStream *timecode_track; |
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int timecode_base; ///< rounded time code base (25 or 30) |
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int timecode_start; ///< frame number computed from mpeg-2 gop header timecode |
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int timecode_drop_frame; ///< time code use drop frame method frop mpeg-2 essence gop header |
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int edit_unit_byte_count; ///< fixed edit unit byte count |
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uint64_t body_offset; |
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uint32_t instance_number; |
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uint8_t umid[16]; ///< unique material identifier |
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} MXFContext; |
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static const uint8_t uuid_base[] = { 0xAD,0xAB,0x44,0x24,0x2f,0x25,0x4d,0xc7,0x92,0xff,0x29,0xbd }; |
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static const uint8_t umid_ul[] = { 0x06,0x0A,0x2B,0x34,0x01,0x01,0x01,0x05,0x01,0x01,0x0D,0x00,0x13 }; |
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/**
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* complete key for operation pattern, partitions, and primer pack
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*/
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static const uint8_t op1a_ul[] = { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x0D,0x01,0x02,0x01,0x01,0x01,0x09,0x00 }; |
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static const uint8_t footer_partition_key[] = { 0x06,0x0E,0x2B,0x34,0x02,0x05,0x01,0x01,0x0D,0x01,0x02,0x01,0x01,0x04,0x04,0x00 }; // ClosedComplete |
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static const uint8_t primer_pack_key[] = { 0x06,0x0E,0x2B,0x34,0x02,0x05,0x01,0x01,0x0D,0x01,0x02,0x01,0x01,0x05,0x01,0x00 }; |
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static const uint8_t index_table_segment_key[] = { 0x06,0x0E,0x2B,0x34,0x02,0x53,0x01,0x01,0x0d,0x01,0x02,0x01,0x01,0x10,0x01,0x00 }; |
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static const uint8_t random_index_pack_key[] = { 0x06,0x0E,0x2B,0x34,0x02,0x05,0x01,0x01,0x0D,0x01,0x02,0x01,0x01,0x11,0x01,0x00 }; |
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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 |
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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 |
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static const uint8_t klv_fill_key[] = { 0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x01,0x03,0x01,0x02,0x10,0x01,0x00,0x00,0x00 }; |
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static const uint8_t body_partition_key[] = { 0x06,0x0E,0x2B,0x34,0x02,0x05,0x01,0x01,0x0D,0x01,0x02,0x01,0x01,0x03,0x04,0x00 }; // ClosedComplete |
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/**
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* partial key for header metadata
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*/
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static const uint8_t header_metadata_key[] = { 0x06,0x0E,0x2B,0x34,0x02,0x53,0x01,0x01,0x0D,0x01,0x01,0x01,0x01 }; |
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static const uint8_t multiple_desc_ul[] = { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x03,0x0D,0x01,0x03,0x01,0x02,0x7F,0x01,0x00 }; |
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/**
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* SMPTE RP210 http://www.smpte-ra.org/mdd/index.html
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*/
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static const MXFLocalTagPair mxf_local_tag_batch[] = { |
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// preface set
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{ 0x3C0A, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x01,0x01,0x01,0x15,0x02,0x00,0x00,0x00,0x00}}, /* Instance UID */
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{ 0x3B02, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x07,0x02,0x01,0x10,0x02,0x04,0x00,0x00}}, /* Last Modified Date */
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{ 0x3B05, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x03,0x01,0x02,0x01,0x05,0x00,0x00,0x00}}, /* Version */
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{ 0x3B06, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x06,0x01,0x01,0x04,0x06,0x04,0x00,0x00}}, /* Identifications reference */
|
| 227 |
{ 0x3B03, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x06,0x01,0x01,0x04,0x02,0x01,0x00,0x00}}, /* Content Storage reference */
|
| 228 |
{ 0x3B09, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x05,0x01,0x02,0x02,0x03,0x00,0x00,0x00,0x00}}, /* Operational Pattern UL */
|
| 229 |
{ 0x3B0A, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x05,0x01,0x02,0x02,0x10,0x02,0x01,0x00,0x00}}, /* Essence Containers UL batch */
|
| 230 |
{ 0x3B0B, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x05,0x01,0x02,0x02,0x10,0x02,0x02,0x00,0x00}}, /* DM Schemes UL batch */
|
| 231 |
// Identification
|
| 232 |
{ 0x3C09, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x05,0x20,0x07,0x01,0x01,0x00,0x00,0x00}}, /* This Generation UID */
|
| 233 |
{ 0x3C01, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x05,0x20,0x07,0x01,0x02,0x01,0x00,0x00}}, /* Company Name */
|
| 234 |
{ 0x3C02, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x05,0x20,0x07,0x01,0x03,0x01,0x00,0x00}}, /* Product Name */
|
| 235 |
{ 0x3C04, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x05,0x20,0x07,0x01,0x05,0x01,0x00,0x00}}, /* Version String */
|
| 236 |
{ 0x3C05, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x05,0x20,0x07,0x01,0x07,0x00,0x00,0x00}}, /* Product ID */
|
| 237 |
{ 0x3C06, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x07,0x02,0x01,0x10,0x02,0x03,0x00,0x00}}, /* Modification Date */
|
| 238 |
// Content Storage
|
| 239 |
{ 0x1901, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x06,0x01,0x01,0x04,0x05,0x01,0x00,0x00}}, /* Package strong reference batch */
|
| 240 |
{ 0x1902, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x06,0x01,0x01,0x04,0x05,0x02,0x00,0x00}}, /* Package strong reference batch */
|
| 241 |
// Essence Container Data
|
| 242 |
{ 0x2701, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x06,0x01,0x01,0x06,0x01,0x00,0x00,0x00}}, /* Linked Package UID */
|
| 243 |
{ 0x3F07, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x04,0x01,0x03,0x04,0x04,0x00,0x00,0x00,0x00}}, /* BodySID */
|
| 244 |
// Package
|
| 245 |
{ 0x4401, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x01,0x01,0x01,0x15,0x10,0x00,0x00,0x00,0x00}}, /* Package UID */
|
| 246 |
{ 0x4405, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x07,0x02,0x01,0x10,0x01,0x03,0x00,0x00}}, /* Package Creation Date */
|
| 247 |
{ 0x4404, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x07,0x02,0x01,0x10,0x02,0x05,0x00,0x00}}, /* Package Modified Date */
|
| 248 |
{ 0x4403, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x06,0x01,0x01,0x04,0x06,0x05,0x00,0x00}}, /* Tracks Strong reference array */
|
| 249 |
{ 0x4701, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x06,0x01,0x01,0x04,0x02,0x03,0x00,0x00}}, /* Descriptor */
|
| 250 |
// Track
|
| 251 |
{ 0x4801, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x01,0x07,0x01,0x01,0x00,0x00,0x00,0x00}}, /* Track ID */
|
| 252 |
{ 0x4804, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x01,0x04,0x01,0x03,0x00,0x00,0x00,0x00}}, /* Track Number */
|
| 253 |
{ 0x4B01, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x05,0x30,0x04,0x05,0x00,0x00,0x00,0x00}}, /* Edit Rate */
|
| 254 |
{ 0x4B02, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x07,0x02,0x01,0x03,0x01,0x03,0x00,0x00}}, /* Origin */
|
| 255 |
{ 0x4803, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x06,0x01,0x01,0x04,0x02,0x04,0x00,0x00}}, /* Sequence reference */
|
| 256 |
// Sequence
|
| 257 |
{ 0x0201, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x04,0x07,0x01,0x00,0x00,0x00,0x00,0x00}}, /* Data Definition UL */
|
| 258 |
{ 0x0202, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x07,0x02,0x02,0x01,0x01,0x03,0x00,0x00}}, /* Duration */
|
| 259 |
{ 0x1001, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x06,0x01,0x01,0x04,0x06,0x09,0x00,0x00}}, /* Structural Components reference array */
|
| 260 |
// Source Clip
|
| 261 |
{ 0x1201, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x07,0x02,0x01,0x03,0x01,0x04,0x00,0x00}}, /* Start position */
|
| 262 |
{ 0x1101, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x06,0x01,0x01,0x03,0x01,0x00,0x00,0x00}}, /* SourcePackageID */
|
| 263 |
{ 0x1102, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x06,0x01,0x01,0x03,0x02,0x00,0x00,0x00}}, /* SourceTrackID */
|
| 264 |
// Timecode Component
|
| 265 |
{ 0x1501, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x07,0x02,0x01,0x03,0x01,0x05,0x00,0x00}}, /* Start Time Code */
|
| 266 |
{ 0x1502, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x04,0x04,0x01,0x01,0x02,0x06,0x00,0x00}}, /* Rounded Time Code Base */
|
| 267 |
{ 0x1503, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x01,0x04,0x04,0x01,0x01,0x05,0x00,0x00,0x00}}, /* Drop Frame */
|
| 268 |
// File Descriptor
|
| 269 |
{ 0x3F01, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x04,0x06,0x01,0x01,0x04,0x06,0x0B,0x00,0x00}}, /* Sub Descriptors reference array */
|
| 270 |
{ 0x3006, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x05,0x06,0x01,0x01,0x03,0x05,0x00,0x00,0x00}}, /* Linked Track ID */
|
| 271 |
{ 0x3001, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x01,0x04,0x06,0x01,0x01,0x00,0x00,0x00,0x00}}, /* SampleRate */
|
| 272 |
{ 0x3004, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x06,0x01,0x01,0x04,0x01,0x02,0x00,0x00}}, /* Essence Container */
|
| 273 |
// Generic Picture Essence Descriptor
|
| 274 |
{ 0x320C, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x01,0x04,0x01,0x03,0x01,0x04,0x00,0x00,0x00}}, /* Frame Layout */
|
| 275 |
{ 0x320D, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x04,0x01,0x03,0x02,0x05,0x00,0x00,0x00}}, /* Video Line Map */
|
| 276 |
{ 0x3203, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x01,0x04,0x01,0x05,0x02,0x02,0x00,0x00,0x00}}, /* Stored Width */
|
| 277 |
{ 0x3202, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x01,0x04,0x01,0x05,0x02,0x01,0x00,0x00,0x00}}, /* Stored Height */
|
| 278 |
{ 0x3209, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x01,0x04,0x01,0x05,0x01,0x0C,0x00,0x00,0x00}}, /* Display Width */
|
| 279 |
{ 0x3208, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x01,0x04,0x01,0x05,0x01,0x0B,0x00,0x00,0x00}}, /* Display Height */
|
| 280 |
{ 0x320E, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x01,0x04,0x01,0x01,0x01,0x01,0x00,0x00,0x00}}, /* Aspect Ratio */
|
| 281 |
{ 0x3201, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x04,0x01,0x06,0x01,0x00,0x00,0x00,0x00}}, /* Picture Essence Coding */
|
| 282 |
// CDCI Picture Essence Descriptor
|
| 283 |
{ 0x3301, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x04,0x01,0x05,0x03,0x0A,0x00,0x00,0x00}}, /* Component Depth */
|
| 284 |
{ 0x3302, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x01,0x04,0x01,0x05,0x01,0x05,0x00,0x00,0x00}}, /* Horizontal Subsampling */
|
| 285 |
// Generic Sound Essence Descriptor
|
| 286 |
{ 0x3D02, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x04,0x04,0x02,0x03,0x01,0x04,0x00,0x00,0x00}}, /* Locked/Unlocked */
|
| 287 |
{ 0x3D03, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x05,0x04,0x02,0x03,0x01,0x01,0x01,0x00,0x00}}, /* Audio sampling rate */
|
| 288 |
{ 0x3D07, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x05,0x04,0x02,0x01,0x01,0x04,0x00,0x00,0x00}}, /* ChannelCount */
|
| 289 |
{ 0x3D01, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x04,0x04,0x02,0x03,0x03,0x04,0x00,0x00,0x00}}, /* Quantization bits */
|
| 290 |
{ 0x3D06, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x04,0x02,0x04,0x02,0x00,0x00,0x00,0x00}}, /* Sound Essence Compression */
|
| 291 |
// Index Table Segment
|
| 292 |
{ 0x3F0B, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x05,0x05,0x30,0x04,0x06,0x00,0x00,0x00,0x00}}, /* Index Edit Rate */
|
| 293 |
{ 0x3F0C, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x05,0x07,0x02,0x01,0x03,0x01,0x0A,0x00,0x00}}, /* Index Start Position */
|
| 294 |
{ 0x3F0D, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x05,0x07,0x02,0x02,0x01,0x01,0x02,0x00,0x00}}, /* Index Duration */
|
| 295 |
{ 0x3F05, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x04,0x04,0x06,0x02,0x01,0x00,0x00,0x00,0x00}}, /* Edit Unit Byte Count */
|
| 296 |
{ 0x3F06, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x04,0x01,0x03,0x04,0x05,0x00,0x00,0x00,0x00}}, /* IndexSID */
|
| 297 |
{ 0x3F08, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x04,0x04,0x04,0x04,0x01,0x01,0x00,0x00,0x00}}, /* Slice Count */
|
| 298 |
{ 0x3F09, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x05,0x04,0x04,0x04,0x01,0x06,0x00,0x00,0x00}}, /* Delta Entry Array */
|
| 299 |
{ 0x3F0A, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x05,0x04,0x04,0x04,0x02,0x05,0x00,0x00,0x00}}, /* Index Entry Array */
|
| 300 |
// MPEG video Descriptor
|
| 301 |
{ 0x8000, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x05,0x04,0x01,0x06,0x02,0x01,0x0B,0x00,0x00}}, /* BitRate */
|
| 302 |
{ 0x8007, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x05,0x04,0x01,0x06,0x02,0x01,0x0A,0x00,0x00}}, /* ProfileAndLevel */
|
| 303 |
// Wave Audio Essence Descriptor
|
| 304 |
{ 0x3D09, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x05,0x04,0x02,0x03,0x03,0x05,0x00,0x00,0x00}}, /* Average Bytes Per Second */
|
| 305 |
{ 0x3D0A, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x05,0x04,0x02,0x03,0x02,0x01,0x00,0x00,0x00}}, /* Block Align */
|
| 306 |
}; |
| 307 |
|
| 308 |
static void mxf_write_uuid(AVIOContext *pb, enum MXFMetadataSetType type, int value) |
| 309 |
{
|
| 310 |
avio_write(pb, uuid_base, 12);
|
| 311 |
avio_wb16(pb, type); |
| 312 |
avio_wb16(pb, value); |
| 313 |
} |
| 314 |
|
| 315 |
static void mxf_write_umid(AVFormatContext *s, int type) |
| 316 |
{
|
| 317 |
MXFContext *mxf = s->priv_data; |
| 318 |
avio_write(s->pb, umid_ul, 13);
|
| 319 |
avio_wb24(s->pb, mxf->instance_number); |
| 320 |
avio_write(s->pb, mxf->umid, 15);
|
| 321 |
avio_w8(s->pb, type); |
| 322 |
} |
| 323 |
|
| 324 |
static void mxf_write_refs_count(AVIOContext *pb, int ref_count) |
| 325 |
{
|
| 326 |
avio_wb32(pb, ref_count); |
| 327 |
avio_wb32(pb, 16);
|
| 328 |
} |
| 329 |
|
| 330 |
static int klv_ber_length(uint64_t len) |
| 331 |
{
|
| 332 |
if (len < 128) |
| 333 |
return 1; |
| 334 |
else
|
| 335 |
return (av_log2(len) >> 3) + 2; |
| 336 |
} |
| 337 |
|
| 338 |
static int klv_encode_ber_length(AVIOContext *pb, uint64_t len) |
| 339 |
{
|
| 340 |
// Determine the best BER size
|
| 341 |
int size;
|
| 342 |
if (len < 128) { |
| 343 |
//short form
|
| 344 |
avio_w8(pb, len); |
| 345 |
return 1; |
| 346 |
} |
| 347 |
|
| 348 |
size = (av_log2(len) >> 3) + 1; |
| 349 |
|
| 350 |
// long form
|
| 351 |
avio_w8(pb, 0x80 + size);
|
| 352 |
while(size) {
|
| 353 |
size--; |
| 354 |
avio_w8(pb, len >> 8 * size & 0xff); |
| 355 |
} |
| 356 |
return 0; |
| 357 |
} |
| 358 |
|
| 359 |
static void klv_encode_ber4_length(AVIOContext *pb, int len) |
| 360 |
{
|
| 361 |
avio_w8(pb, 0x80 + 3); |
| 362 |
avio_wb24(pb, len); |
| 363 |
} |
| 364 |
|
| 365 |
/*
|
| 366 |
* Get essence container ul index
|
| 367 |
*/
|
| 368 |
static int mxf_get_essence_container_ul_index(enum CodecID id) |
| 369 |
{
|
| 370 |
int i;
|
| 371 |
for (i = 0; mxf_essence_mappings[i].id; i++) |
| 372 |
if (mxf_essence_mappings[i].id == id)
|
| 373 |
return mxf_essence_mappings[i].index;
|
| 374 |
return -1; |
| 375 |
} |
| 376 |
|
| 377 |
static void mxf_write_primer_pack(AVFormatContext *s) |
| 378 |
{
|
| 379 |
AVIOContext *pb = s->pb; |
| 380 |
int local_tag_number, i = 0; |
| 381 |
|
| 382 |
local_tag_number = FF_ARRAY_ELEMS(mxf_local_tag_batch); |
| 383 |
|
| 384 |
avio_write(pb, primer_pack_key, 16);
|
| 385 |
klv_encode_ber_length(pb, local_tag_number * 18 + 8); |
| 386 |
|
| 387 |
avio_wb32(pb, local_tag_number); // local_tag num
|
| 388 |
avio_wb32(pb, 18); // item size, always 18 according to the specs |
| 389 |
|
| 390 |
for (i = 0; i < local_tag_number; i++) { |
| 391 |
avio_wb16(pb, mxf_local_tag_batch[i].local_tag); |
| 392 |
avio_write(pb, mxf_local_tag_batch[i].uid, 16);
|
| 393 |
} |
| 394 |
} |
| 395 |
|
| 396 |
static void mxf_write_local_tag(AVIOContext *pb, int size, int tag) |
| 397 |
{
|
| 398 |
avio_wb16(pb, tag); |
| 399 |
avio_wb16(pb, size); |
| 400 |
} |
| 401 |
|
| 402 |
static void mxf_write_metadata_key(AVIOContext *pb, unsigned int value) |
| 403 |
{
|
| 404 |
avio_write(pb, header_metadata_key, 13);
|
| 405 |
avio_wb24(pb, value); |
| 406 |
} |
| 407 |
|
| 408 |
static void mxf_free(AVFormatContext *s) |
| 409 |
{
|
| 410 |
int i;
|
| 411 |
|
| 412 |
for (i = 0; i < s->nb_streams; i++) { |
| 413 |
AVStream *st = s->streams[i]; |
| 414 |
av_freep(&st->priv_data); |
| 415 |
} |
| 416 |
} |
| 417 |
|
| 418 |
static const MXFCodecUL *mxf_get_data_definition_ul(int type) |
| 419 |
{
|
| 420 |
const MXFCodecUL *uls = ff_mxf_data_definition_uls;
|
| 421 |
while (uls->uid[0]) { |
| 422 |
if (type == uls->id)
|
| 423 |
break;
|
| 424 |
uls++; |
| 425 |
} |
| 426 |
return uls;
|
| 427 |
} |
| 428 |
|
| 429 |
static void mxf_write_essence_container_refs(AVFormatContext *s) |
| 430 |
{
|
| 431 |
MXFContext *c = s->priv_data; |
| 432 |
AVIOContext *pb = s->pb; |
| 433 |
int i;
|
| 434 |
|
| 435 |
mxf_write_refs_count(pb, c->essence_container_count); |
| 436 |
av_log(s,AV_LOG_DEBUG, "essence container count:%d\n", c->essence_container_count);
|
| 437 |
for (i = 0; i < c->essence_container_count; i++) { |
| 438 |
MXFStreamContext *sc = s->streams[i]->priv_data; |
| 439 |
avio_write(pb, mxf_essence_container_uls[sc->index].container_ul, 16);
|
| 440 |
} |
| 441 |
} |
| 442 |
|
| 443 |
static void mxf_write_preface(AVFormatContext *s) |
| 444 |
{
|
| 445 |
MXFContext *mxf = s->priv_data; |
| 446 |
AVIOContext *pb = s->pb; |
| 447 |
|
| 448 |
mxf_write_metadata_key(pb, 0x012f00);
|
| 449 |
PRINT_KEY(s, "preface key", pb->buf_ptr - 16); |
| 450 |
klv_encode_ber_length(pb, 130 + 16 * mxf->essence_container_count); |
| 451 |
|
| 452 |
// write preface set uid
|
| 453 |
mxf_write_local_tag(pb, 16, 0x3C0A); |
| 454 |
mxf_write_uuid(pb, Preface, 0);
|
| 455 |
PRINT_KEY(s, "preface uid", pb->buf_ptr - 16); |
| 456 |
|
| 457 |
// last modified date
|
| 458 |
mxf_write_local_tag(pb, 8, 0x3B02); |
| 459 |
avio_wb64(pb, mxf->timestamp); |
| 460 |
|
| 461 |
// write version
|
| 462 |
mxf_write_local_tag(pb, 2, 0x3B05); |
| 463 |
avio_wb16(pb, 258); // v1.2 |
| 464 |
|
| 465 |
// write identification_refs
|
| 466 |
mxf_write_local_tag(pb, 16 + 8, 0x3B06); |
| 467 |
mxf_write_refs_count(pb, 1);
|
| 468 |
mxf_write_uuid(pb, Identification, 0);
|
| 469 |
|
| 470 |
// write content_storage_refs
|
| 471 |
mxf_write_local_tag(pb, 16, 0x3B03); |
| 472 |
mxf_write_uuid(pb, ContentStorage, 0);
|
| 473 |
|
| 474 |
// operational pattern
|
| 475 |
mxf_write_local_tag(pb, 16, 0x3B09); |
| 476 |
avio_write(pb, op1a_ul, 16);
|
| 477 |
|
| 478 |
// write essence_container_refs
|
| 479 |
mxf_write_local_tag(pb, 8 + 16 * mxf->essence_container_count, 0x3B0A); |
| 480 |
mxf_write_essence_container_refs(s); |
| 481 |
|
| 482 |
// write dm_scheme_refs
|
| 483 |
mxf_write_local_tag(pb, 8, 0x3B0B); |
| 484 |
avio_wb64(pb, 0);
|
| 485 |
} |
| 486 |
|
| 487 |
/*
|
| 488 |
* Write a local tag containing an ascii string as utf-16
|
| 489 |
*/
|
| 490 |
static void mxf_write_local_tag_utf16(AVIOContext *pb, int tag, const char *value) |
| 491 |
{
|
| 492 |
int i, size = strlen(value);
|
| 493 |
mxf_write_local_tag(pb, size*2, tag);
|
| 494 |
for (i = 0; i < size; i++) |
| 495 |
avio_wb16(pb, value[i]); |
| 496 |
} |
| 497 |
|
| 498 |
static void mxf_write_identification(AVFormatContext *s) |
| 499 |
{
|
| 500 |
MXFContext *mxf = s->priv_data; |
| 501 |
AVIOContext *pb = s->pb; |
| 502 |
const char *company = "FFmpeg"; |
| 503 |
const char *product = "OP1a Muxer"; |
| 504 |
const char *version; |
| 505 |
int length;
|
| 506 |
|
| 507 |
mxf_write_metadata_key(pb, 0x013000);
|
| 508 |
PRINT_KEY(s, "identification key", pb->buf_ptr - 16); |
| 509 |
|
| 510 |
version = s->streams[0]->codec->flags & CODEC_FLAG_BITEXACT ?
|
| 511 |
"0.0.0" : AV_STRINGIFY(LIBAVFORMAT_VERSION);
|
| 512 |
length = 84 + (strlen(company)+strlen(product)+strlen(version))*2; // utf-16 |
| 513 |
klv_encode_ber_length(pb, length); |
| 514 |
|
| 515 |
// write uid
|
| 516 |
mxf_write_local_tag(pb, 16, 0x3C0A); |
| 517 |
mxf_write_uuid(pb, Identification, 0);
|
| 518 |
PRINT_KEY(s, "identification uid", pb->buf_ptr - 16); |
| 519 |
|
| 520 |
// write generation uid
|
| 521 |
mxf_write_local_tag(pb, 16, 0x3C09); |
| 522 |
mxf_write_uuid(pb, Identification, 1);
|
| 523 |
|
| 524 |
mxf_write_local_tag_utf16(pb, 0x3C01, company); // Company Name |
| 525 |
mxf_write_local_tag_utf16(pb, 0x3C02, product); // Product Name |
| 526 |
mxf_write_local_tag_utf16(pb, 0x3C04, version); // Version String |
| 527 |
|
| 528 |
// write product uid
|
| 529 |
mxf_write_local_tag(pb, 16, 0x3C05); |
| 530 |
mxf_write_uuid(pb, Identification, 2);
|
| 531 |
|
| 532 |
// modification date
|
| 533 |
mxf_write_local_tag(pb, 8, 0x3C06); |
| 534 |
avio_wb64(pb, mxf->timestamp); |
| 535 |
} |
| 536 |
|
| 537 |
static void mxf_write_content_storage(AVFormatContext *s) |
| 538 |
{
|
| 539 |
AVIOContext *pb = s->pb; |
| 540 |
|
| 541 |
mxf_write_metadata_key(pb, 0x011800);
|
| 542 |
PRINT_KEY(s, "content storage key", pb->buf_ptr - 16); |
| 543 |
klv_encode_ber_length(pb, 92);
|
| 544 |
|
| 545 |
// write uid
|
| 546 |
mxf_write_local_tag(pb, 16, 0x3C0A); |
| 547 |
mxf_write_uuid(pb, ContentStorage, 0);
|
| 548 |
PRINT_KEY(s, "content storage uid", pb->buf_ptr - 16); |
| 549 |
|
| 550 |
// write package reference
|
| 551 |
mxf_write_local_tag(pb, 16 * 2 + 8, 0x1901); |
| 552 |
mxf_write_refs_count(pb, 2);
|
| 553 |
mxf_write_uuid(pb, MaterialPackage, 0);
|
| 554 |
mxf_write_uuid(pb, SourcePackage, 0);
|
| 555 |
|
| 556 |
// write essence container data
|
| 557 |
mxf_write_local_tag(pb, 8 + 16, 0x1902); |
| 558 |
mxf_write_refs_count(pb, 1);
|
| 559 |
mxf_write_uuid(pb, EssenceContainerData, 0);
|
| 560 |
} |
| 561 |
|
| 562 |
static void mxf_write_track(AVFormatContext *s, AVStream *st, enum MXFMetadataSetType type) |
| 563 |
{
|
| 564 |
MXFContext *mxf = s->priv_data; |
| 565 |
AVIOContext *pb = s->pb; |
| 566 |
MXFStreamContext *sc = st->priv_data; |
| 567 |
|
| 568 |
mxf_write_metadata_key(pb, 0x013b00);
|
| 569 |
PRINT_KEY(s, "track key", pb->buf_ptr - 16); |
| 570 |
klv_encode_ber_length(pb, 80);
|
| 571 |
|
| 572 |
// write track uid
|
| 573 |
mxf_write_local_tag(pb, 16, 0x3C0A); |
| 574 |
mxf_write_uuid(pb, type == MaterialPackage ? Track : Track + TypeBottom, st->index); |
| 575 |
PRINT_KEY(s, "track uid", pb->buf_ptr - 16); |
| 576 |
|
| 577 |
// write track id
|
| 578 |
mxf_write_local_tag(pb, 4, 0x4801); |
| 579 |
avio_wb32(pb, st->index+2);
|
| 580 |
|
| 581 |
// write track number
|
| 582 |
mxf_write_local_tag(pb, 4, 0x4804); |
| 583 |
if (type == MaterialPackage)
|
| 584 |
avio_wb32(pb, 0); // track number of material package is 0 |
| 585 |
else
|
| 586 |
avio_write(pb, sc->track_essence_element_key + 12, 4); |
| 587 |
|
| 588 |
mxf_write_local_tag(pb, 8, 0x4B01); |
| 589 |
avio_wb32(pb, mxf->time_base.den); |
| 590 |
avio_wb32(pb, mxf->time_base.num); |
| 591 |
|
| 592 |
// write origin
|
| 593 |
mxf_write_local_tag(pb, 8, 0x4B02); |
| 594 |
avio_wb64(pb, 0);
|
| 595 |
|
| 596 |
// write sequence refs
|
| 597 |
mxf_write_local_tag(pb, 16, 0x4803); |
| 598 |
mxf_write_uuid(pb, type == MaterialPackage ? Sequence: Sequence + TypeBottom, st->index); |
| 599 |
} |
| 600 |
|
| 601 |
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 }; |
| 602 |
|
| 603 |
static void mxf_write_common_fields(AVFormatContext *s, AVStream *st) |
| 604 |
{
|
| 605 |
MXFContext *mxf = s->priv_data; |
| 606 |
AVIOContext *pb = s->pb; |
| 607 |
|
| 608 |
// find data define uls
|
| 609 |
mxf_write_local_tag(pb, 16, 0x0201); |
| 610 |
if (st == mxf->timecode_track)
|
| 611 |
avio_write(pb, smpte_12m_timecode_track_data_ul, 16);
|
| 612 |
else {
|
| 613 |
const MXFCodecUL *data_def_ul = mxf_get_data_definition_ul(st->codec->codec_type);
|
| 614 |
avio_write(pb, data_def_ul->uid, 16);
|
| 615 |
} |
| 616 |
|
| 617 |
// write duration
|
| 618 |
mxf_write_local_tag(pb, 8, 0x0202); |
| 619 |
avio_wb64(pb, mxf->duration); |
| 620 |
} |
| 621 |
|
| 622 |
static void mxf_write_sequence(AVFormatContext *s, AVStream *st, enum MXFMetadataSetType type) |
| 623 |
{
|
| 624 |
MXFContext *mxf = s->priv_data; |
| 625 |
AVIOContext *pb = s->pb; |
| 626 |
enum MXFMetadataSetType component;
|
| 627 |
|
| 628 |
mxf_write_metadata_key(pb, 0x010f00);
|
| 629 |
PRINT_KEY(s, "sequence key", pb->buf_ptr - 16); |
| 630 |
klv_encode_ber_length(pb, 80);
|
| 631 |
|
| 632 |
mxf_write_local_tag(pb, 16, 0x3C0A); |
| 633 |
mxf_write_uuid(pb, type == MaterialPackage ? Sequence: Sequence + TypeBottom, st->index); |
| 634 |
|
| 635 |
PRINT_KEY(s, "sequence uid", pb->buf_ptr - 16); |
| 636 |
mxf_write_common_fields(s, st); |
| 637 |
|
| 638 |
// write structural component
|
| 639 |
mxf_write_local_tag(pb, 16 + 8, 0x1001); |
| 640 |
mxf_write_refs_count(pb, 1);
|
| 641 |
if (st == mxf->timecode_track)
|
| 642 |
component = TimecodeComponent; |
| 643 |
else
|
| 644 |
component = SourceClip; |
| 645 |
if (type == SourcePackage)
|
| 646 |
component += TypeBottom; |
| 647 |
mxf_write_uuid(pb, component, st->index); |
| 648 |
} |
| 649 |
|
| 650 |
static void mxf_write_timecode_component(AVFormatContext *s, AVStream *st, enum MXFMetadataSetType type) |
| 651 |
{
|
| 652 |
MXFContext *mxf = s->priv_data; |
| 653 |
AVIOContext *pb = s->pb; |
| 654 |
|
| 655 |
mxf_write_metadata_key(pb, 0x011400);
|
| 656 |
klv_encode_ber_length(pb, 75);
|
| 657 |
|
| 658 |
// UID
|
| 659 |
mxf_write_local_tag(pb, 16, 0x3C0A); |
| 660 |
mxf_write_uuid(pb, type == MaterialPackage ? TimecodeComponent : |
| 661 |
TimecodeComponent + TypeBottom, st->index); |
| 662 |
|
| 663 |
mxf_write_common_fields(s, st); |
| 664 |
|
| 665 |
// Start Time Code
|
| 666 |
mxf_write_local_tag(pb, 8, 0x1501); |
| 667 |
avio_wb64(pb, mxf->timecode_start); |
| 668 |
|
| 669 |
// Rounded Time Code Base
|
| 670 |
mxf_write_local_tag(pb, 2, 0x1502); |
| 671 |
avio_wb16(pb, mxf->timecode_base); |
| 672 |
|
| 673 |
// Drop Frame
|
| 674 |
mxf_write_local_tag(pb, 1, 0x1503); |
| 675 |
avio_w8(pb, mxf->timecode_drop_frame); |
| 676 |
} |
| 677 |
|
| 678 |
static void mxf_write_structural_component(AVFormatContext *s, AVStream *st, enum MXFMetadataSetType type) |
| 679 |
{
|
| 680 |
AVIOContext *pb = s->pb; |
| 681 |
int i;
|
| 682 |
|
| 683 |
mxf_write_metadata_key(pb, 0x011100);
|
| 684 |
PRINT_KEY(s, "sturctural component key", pb->buf_ptr - 16); |
| 685 |
klv_encode_ber_length(pb, 108);
|
| 686 |
|
| 687 |
// write uid
|
| 688 |
mxf_write_local_tag(pb, 16, 0x3C0A); |
| 689 |
mxf_write_uuid(pb, type == MaterialPackage ? SourceClip: SourceClip + TypeBottom, st->index); |
| 690 |
|
| 691 |
PRINT_KEY(s, "structural component uid", pb->buf_ptr - 16); |
| 692 |
mxf_write_common_fields(s, st); |
| 693 |
|
| 694 |
// write start_position
|
| 695 |
mxf_write_local_tag(pb, 8, 0x1201); |
| 696 |
avio_wb64(pb, 0);
|
| 697 |
|
| 698 |
// write source package uid, end of the reference
|
| 699 |
mxf_write_local_tag(pb, 32, 0x1101); |
| 700 |
if (type == SourcePackage) {
|
| 701 |
for (i = 0; i < 4; i++) |
| 702 |
avio_wb64(pb, 0);
|
| 703 |
} else
|
| 704 |
mxf_write_umid(s, 1);
|
| 705 |
|
| 706 |
// write source track id
|
| 707 |
mxf_write_local_tag(pb, 4, 0x1102); |
| 708 |
if (type == SourcePackage)
|
| 709 |
avio_wb32(pb, 0);
|
| 710 |
else
|
| 711 |
avio_wb32(pb, st->index+2);
|
| 712 |
} |
| 713 |
|
| 714 |
static void mxf_write_multi_descriptor(AVFormatContext *s) |
| 715 |
{
|
| 716 |
MXFContext *mxf = s->priv_data; |
| 717 |
AVIOContext *pb = s->pb; |
| 718 |
const uint8_t *ul;
|
| 719 |
int i;
|
| 720 |
|
| 721 |
mxf_write_metadata_key(pb, 0x014400);
|
| 722 |
PRINT_KEY(s, "multiple descriptor key", pb->buf_ptr - 16); |
| 723 |
klv_encode_ber_length(pb, 64 + 16 * s->nb_streams); |
| 724 |
|
| 725 |
mxf_write_local_tag(pb, 16, 0x3C0A); |
| 726 |
mxf_write_uuid(pb, MultipleDescriptor, 0);
|
| 727 |
PRINT_KEY(s, "multi_desc uid", pb->buf_ptr - 16); |
| 728 |
|
| 729 |
// write sample rate
|
| 730 |
mxf_write_local_tag(pb, 8, 0x3001); |
| 731 |
avio_wb32(pb, mxf->time_base.den); |
| 732 |
avio_wb32(pb, mxf->time_base.num); |
| 733 |
|
| 734 |
// write essence container ul
|
| 735 |
mxf_write_local_tag(pb, 16, 0x3004); |
| 736 |
if (mxf->essence_container_count > 1) |
| 737 |
ul = multiple_desc_ul; |
| 738 |
else {
|
| 739 |
MXFStreamContext *sc = s->streams[0]->priv_data;
|
| 740 |
ul = mxf_essence_container_uls[sc->index].container_ul; |
| 741 |
} |
| 742 |
avio_write(pb, ul, 16);
|
| 743 |
|
| 744 |
// write sub descriptor refs
|
| 745 |
mxf_write_local_tag(pb, s->nb_streams * 16 + 8, 0x3F01); |
| 746 |
mxf_write_refs_count(pb, s->nb_streams); |
| 747 |
for (i = 0; i < s->nb_streams; i++) |
| 748 |
mxf_write_uuid(pb, SubDescriptor, i); |
| 749 |
} |
| 750 |
|
| 751 |
static void mxf_write_generic_desc(AVFormatContext *s, AVStream *st, const UID key, unsigned size) |
| 752 |
{
|
| 753 |
MXFContext *mxf = s->priv_data; |
| 754 |
MXFStreamContext *sc = st->priv_data; |
| 755 |
AVIOContext *pb = s->pb; |
| 756 |
|
| 757 |
avio_write(pb, key, 16);
|
| 758 |
klv_encode_ber4_length(pb, size+20+8+12+20); |
| 759 |
|
| 760 |
mxf_write_local_tag(pb, 16, 0x3C0A); |
| 761 |
mxf_write_uuid(pb, SubDescriptor, st->index); |
| 762 |
|
| 763 |
mxf_write_local_tag(pb, 4, 0x3006); |
| 764 |
avio_wb32(pb, st->index+2);
|
| 765 |
|
| 766 |
mxf_write_local_tag(pb, 8, 0x3001); |
| 767 |
avio_wb32(pb, mxf->time_base.den); |
| 768 |
avio_wb32(pb, mxf->time_base.num); |
| 769 |
|
| 770 |
mxf_write_local_tag(pb, 16, 0x3004); |
| 771 |
avio_write(pb, mxf_essence_container_uls[sc->index].container_ul, 16);
|
| 772 |
} |
| 773 |
|
| 774 |
static const UID mxf_mpegvideo_descriptor_key = { 0x06,0x0E,0x2B,0x34,0x02,0x53,0x01,0x01,0x0d,0x01,0x01,0x01,0x01,0x01,0x51,0x00 }; |
| 775 |
static const UID mxf_wav_descriptor_key = { 0x06,0x0E,0x2B,0x34,0x02,0x53,0x01,0x01,0x0d,0x01,0x01,0x01,0x01,0x01,0x48,0x00 }; |
| 776 |
static const UID mxf_aes3_descriptor_key = { 0x06,0x0E,0x2B,0x34,0x02,0x53,0x01,0x01,0x0d,0x01,0x01,0x01,0x01,0x01,0x47,0x00 }; |
| 777 |
static const UID mxf_cdci_descriptor_key = { 0x06,0x0E,0x2B,0x34,0x02,0x53,0x01,0x01,0x0D,0x01,0x01,0x01,0x01,0x01,0x28,0x00 }; |
| 778 |
static const UID mxf_generic_sound_descriptor_key = { 0x06,0x0E,0x2B,0x34,0x02,0x53,0x01,0x01,0x0D,0x01,0x01,0x01,0x01,0x01,0x42,0x00 }; |
| 779 |
|
| 780 |
static void mxf_write_cdci_common(AVFormatContext *s, AVStream *st, const UID key, unsigned size) |
| 781 |
{
|
| 782 |
MXFStreamContext *sc = st->priv_data; |
| 783 |
AVIOContext *pb = s->pb; |
| 784 |
int stored_height = (st->codec->height+15)/16*16; |
| 785 |
int display_height;
|
| 786 |
int f1, f2;
|
| 787 |
|
| 788 |
mxf_write_generic_desc(s, st, key, size+8+8+8+8+8+8+5+16+sc->interlaced*4+12+20); |
| 789 |
|
| 790 |
mxf_write_local_tag(pb, 4, 0x3203); |
| 791 |
avio_wb32(pb, st->codec->width); |
| 792 |
|
| 793 |
mxf_write_local_tag(pb, 4, 0x3202); |
| 794 |
avio_wb32(pb, stored_height>>sc->interlaced); |
| 795 |
|
| 796 |
mxf_write_local_tag(pb, 4, 0x3209); |
| 797 |
avio_wb32(pb, st->codec->width); |
| 798 |
|
| 799 |
if (st->codec->height == 608) // PAL + VBI |
| 800 |
display_height = 576;
|
| 801 |
else if (st->codec->height == 512) // NTSC + VBI |
| 802 |
display_height = 486;
|
| 803 |
else
|
| 804 |
display_height = st->codec->height; |
| 805 |
|
| 806 |
mxf_write_local_tag(pb, 4, 0x3208); |
| 807 |
avio_wb32(pb, display_height>>sc->interlaced); |
| 808 |
|
| 809 |
// component depth
|
| 810 |
mxf_write_local_tag(pb, 4, 0x3301); |
| 811 |
avio_wb32(pb, 8);
|
| 812 |
|
| 813 |
// horizontal subsampling
|
| 814 |
mxf_write_local_tag(pb, 4, 0x3302); |
| 815 |
avio_wb32(pb, 2);
|
| 816 |
|
| 817 |
// frame layout
|
| 818 |
mxf_write_local_tag(pb, 1, 0x320C); |
| 819 |
avio_w8(pb, sc->interlaced); |
| 820 |
|
| 821 |
// video line map
|
| 822 |
switch (st->codec->height) {
|
| 823 |
case 576: f1 = 23; f2 = 336; break; |
| 824 |
case 608: f1 = 7; f2 = 320; break; |
| 825 |
case 480: f1 = 20; f2 = 283; break; |
| 826 |
case 512: f1 = 7; f2 = 270; break; |
| 827 |
case 720: f1 = 26; f2 = 0; break; // progressive |
| 828 |
case 1080: f1 = 21; f2 = 584; break; |
| 829 |
default: f1 = 0; f2 = 0; break; |
| 830 |
} |
| 831 |
|
| 832 |
if (!sc->interlaced) {
|
| 833 |
f2 = 0;
|
| 834 |
f1 *= 2;
|
| 835 |
} |
| 836 |
|
| 837 |
mxf_write_local_tag(pb, 12+sc->interlaced*4, 0x320D); |
| 838 |
avio_wb32(pb, sc->interlaced ? 2 : 1); |
| 839 |
avio_wb32(pb, 4);
|
| 840 |
avio_wb32(pb, f1); |
| 841 |
if (sc->interlaced)
|
| 842 |
avio_wb32(pb, f2); |
| 843 |
|
| 844 |
mxf_write_local_tag(pb, 8, 0x320E); |
| 845 |
avio_wb32(pb, sc->aspect_ratio.num); |
| 846 |
avio_wb32(pb, sc->aspect_ratio.den); |
| 847 |
|
| 848 |
mxf_write_local_tag(pb, 16, 0x3201); |
| 849 |
avio_write(pb, *sc->codec_ul, 16);
|
| 850 |
} |
| 851 |
|
| 852 |
static void mxf_write_cdci_desc(AVFormatContext *s, AVStream *st) |
| 853 |
{
|
| 854 |
mxf_write_cdci_common(s, st, mxf_cdci_descriptor_key, 0);
|
| 855 |
} |
| 856 |
|
| 857 |
static void mxf_write_mpegvideo_desc(AVFormatContext *s, AVStream *st) |
| 858 |
{
|
| 859 |
AVIOContext *pb = s->pb; |
| 860 |
int profile_and_level = (st->codec->profile<<4) | st->codec->level; |
| 861 |
|
| 862 |
mxf_write_cdci_common(s, st, mxf_mpegvideo_descriptor_key, 8+5); |
| 863 |
|
| 864 |
// bit rate
|
| 865 |
mxf_write_local_tag(pb, 4, 0x8000); |
| 866 |
avio_wb32(pb, st->codec->bit_rate); |
| 867 |
|
| 868 |
// profile and level
|
| 869 |
mxf_write_local_tag(pb, 1, 0x8007); |
| 870 |
if (!st->codec->profile)
|
| 871 |
profile_and_level |= 0x80; // escape bit |
| 872 |
avio_w8(pb, profile_and_level); |
| 873 |
} |
| 874 |
|
| 875 |
static void mxf_write_generic_sound_common(AVFormatContext *s, AVStream *st, const UID key, unsigned size) |
| 876 |
{
|
| 877 |
AVIOContext *pb = s->pb; |
| 878 |
|
| 879 |
mxf_write_generic_desc(s, st, key, size+5+12+8+8); |
| 880 |
|
| 881 |
// audio locked
|
| 882 |
mxf_write_local_tag(pb, 1, 0x3D02); |
| 883 |
avio_w8(pb, 1);
|
| 884 |
|
| 885 |
// write audio sampling rate
|
| 886 |
mxf_write_local_tag(pb, 8, 0x3D03); |
| 887 |
avio_wb32(pb, st->codec->sample_rate); |
| 888 |
avio_wb32(pb, 1);
|
| 889 |
|
| 890 |
mxf_write_local_tag(pb, 4, 0x3D07); |
| 891 |
avio_wb32(pb, st->codec->channels); |
| 892 |
|
| 893 |
mxf_write_local_tag(pb, 4, 0x3D01); |
| 894 |
avio_wb32(pb, av_get_bits_per_sample(st->codec->codec_id)); |
| 895 |
} |
| 896 |
|
| 897 |
static void mxf_write_wav_common(AVFormatContext *s, AVStream *st, const UID key, unsigned size) |
| 898 |
{
|
| 899 |
AVIOContext *pb = s->pb; |
| 900 |
|
| 901 |
mxf_write_generic_sound_common(s, st, key, size+6+8); |
| 902 |
|
| 903 |
mxf_write_local_tag(pb, 2, 0x3D0A); |
| 904 |
avio_wb16(pb, st->codec->block_align); |
| 905 |
|
| 906 |
// avg bytes per sec
|
| 907 |
mxf_write_local_tag(pb, 4, 0x3D09); |
| 908 |
avio_wb32(pb, st->codec->block_align*st->codec->sample_rate); |
| 909 |
} |
| 910 |
|
| 911 |
static void mxf_write_wav_desc(AVFormatContext *s, AVStream *st) |
| 912 |
{
|
| 913 |
mxf_write_wav_common(s, st, mxf_wav_descriptor_key, 0);
|
| 914 |
} |
| 915 |
|
| 916 |
static void mxf_write_aes3_desc(AVFormatContext *s, AVStream *st) |
| 917 |
{
|
| 918 |
mxf_write_wav_common(s, st, mxf_aes3_descriptor_key, 0);
|
| 919 |
} |
| 920 |
|
| 921 |
static void mxf_write_generic_sound_desc(AVFormatContext *s, AVStream *st) |
| 922 |
{
|
| 923 |
mxf_write_generic_sound_common(s, st, mxf_generic_sound_descriptor_key, 0);
|
| 924 |
} |
| 925 |
|
| 926 |
static void mxf_write_package(AVFormatContext *s, enum MXFMetadataSetType type) |
| 927 |
{
|
| 928 |
MXFContext *mxf = s->priv_data; |
| 929 |
AVIOContext *pb = s->pb; |
| 930 |
int i, track_count = s->nb_streams+1; |
| 931 |
|
| 932 |
if (type == MaterialPackage) {
|
| 933 |
mxf_write_metadata_key(pb, 0x013600);
|
| 934 |
PRINT_KEY(s, "Material Package key", pb->buf_ptr - 16); |
| 935 |
klv_encode_ber_length(pb, 92 + 16*track_count); |
| 936 |
} else {
|
| 937 |
mxf_write_metadata_key(pb, 0x013700);
|
| 938 |
PRINT_KEY(s, "Source Package key", pb->buf_ptr - 16); |
| 939 |
klv_encode_ber_length(pb, 112 + 16*track_count); // 20 bytes length for descriptor reference |
| 940 |
} |
| 941 |
|
| 942 |
// write uid
|
| 943 |
mxf_write_local_tag(pb, 16, 0x3C0A); |
| 944 |
mxf_write_uuid(pb, type, 0);
|
| 945 |
av_log(s,AV_LOG_DEBUG, "package type:%d\n", type);
|
| 946 |
PRINT_KEY(s, "package uid", pb->buf_ptr - 16); |
| 947 |
|
| 948 |
// write package umid
|
| 949 |
mxf_write_local_tag(pb, 32, 0x4401); |
| 950 |
mxf_write_umid(s, type == SourcePackage); |
| 951 |
PRINT_KEY(s, "package umid second part", pb->buf_ptr - 16); |
| 952 |
|
| 953 |
// package creation date
|
| 954 |
mxf_write_local_tag(pb, 8, 0x4405); |
| 955 |
avio_wb64(pb, mxf->timestamp); |
| 956 |
|
| 957 |
// package modified date
|
| 958 |
mxf_write_local_tag(pb, 8, 0x4404); |
| 959 |
avio_wb64(pb, mxf->timestamp); |
| 960 |
|
| 961 |
// write track refs
|
| 962 |
mxf_write_local_tag(pb, track_count*16 + 8, 0x4403); |
| 963 |
mxf_write_refs_count(pb, track_count); |
| 964 |
mxf_write_uuid(pb, type == MaterialPackage ? Track : |
| 965 |
Track + TypeBottom, -1); // timecode track |
| 966 |
for (i = 0; i < s->nb_streams; i++) |
| 967 |
mxf_write_uuid(pb, type == MaterialPackage ? Track : Track + TypeBottom, i); |
| 968 |
|
| 969 |
// write multiple descriptor reference
|
| 970 |
if (type == SourcePackage) {
|
| 971 |
mxf_write_local_tag(pb, 16, 0x4701); |
| 972 |
if (s->nb_streams > 1) { |
| 973 |
mxf_write_uuid(pb, MultipleDescriptor, 0);
|
| 974 |
mxf_write_multi_descriptor(s); |
| 975 |
} else
|
| 976 |
mxf_write_uuid(pb, SubDescriptor, 0);
|
| 977 |
} |
| 978 |
|
| 979 |
// write timecode track
|
| 980 |
mxf_write_track(s, mxf->timecode_track, type); |
| 981 |
mxf_write_sequence(s, mxf->timecode_track, type); |
| 982 |
mxf_write_timecode_component(s, mxf->timecode_track, type); |
| 983 |
|
| 984 |
for (i = 0; i < s->nb_streams; i++) { |
| 985 |
AVStream *st = s->streams[i]; |
| 986 |
mxf_write_track(s, st, type); |
| 987 |
mxf_write_sequence(s, st, type); |
| 988 |
mxf_write_structural_component(s, st, type); |
| 989 |
|
| 990 |
if (type == SourcePackage) {
|
| 991 |
MXFStreamContext *sc = st->priv_data; |
| 992 |
mxf_essence_container_uls[sc->index].write_desc(s, st); |
| 993 |
} |
| 994 |
} |
| 995 |
} |
| 996 |
|
| 997 |
static int mxf_write_essence_container_data(AVFormatContext *s) |
| 998 |
{
|
| 999 |
AVIOContext *pb = s->pb; |
| 1000 |
|
| 1001 |
mxf_write_metadata_key(pb, 0x012300);
|
| 1002 |
klv_encode_ber_length(pb, 72);
|
| 1003 |
|
| 1004 |
mxf_write_local_tag(pb, 16, 0x3C0A); // Instance UID |
| 1005 |
mxf_write_uuid(pb, EssenceContainerData, 0);
|
| 1006 |
|
| 1007 |
mxf_write_local_tag(pb, 32, 0x2701); // Linked Package UID |
| 1008 |
mxf_write_umid(s, 1);
|
| 1009 |
|
| 1010 |
mxf_write_local_tag(pb, 4, 0x3F07); // BodySID |
| 1011 |
avio_wb32(pb, 1);
|
| 1012 |
|
| 1013 |
mxf_write_local_tag(pb, 4, 0x3F06); // IndexSID |
| 1014 |
avio_wb32(pb, 2);
|
| 1015 |
|
| 1016 |
return 0; |
| 1017 |
} |
| 1018 |
|
| 1019 |
static int mxf_write_header_metadata_sets(AVFormatContext *s) |
| 1020 |
{
|
| 1021 |
mxf_write_preface(s); |
| 1022 |
mxf_write_identification(s); |
| 1023 |
mxf_write_content_storage(s); |
| 1024 |
mxf_write_package(s, MaterialPackage); |
| 1025 |
mxf_write_package(s, SourcePackage); |
| 1026 |
mxf_write_essence_container_data(s); |
| 1027 |
return 0; |
| 1028 |
} |
| 1029 |
|
| 1030 |
static unsigned klv_fill_size(uint64_t size) |
| 1031 |
{
|
| 1032 |
unsigned pad = KAG_SIZE - (size & (KAG_SIZE-1)); |
| 1033 |
if (pad < 20) // smallest fill item possible |
| 1034 |
return pad + KAG_SIZE;
|
| 1035 |
else
|
| 1036 |
return pad & (KAG_SIZE-1); |
| 1037 |
} |
| 1038 |
|
| 1039 |
static void mxf_write_index_table_segment(AVFormatContext *s) |
| 1040 |
{
|
| 1041 |
MXFContext *mxf = s->priv_data; |
| 1042 |
AVIOContext *pb = s->pb; |
| 1043 |
int i, j, temporal_reordering = 0; |
| 1044 |
int key_index = mxf->last_key_index;
|
| 1045 |
|
| 1046 |
av_log(s, AV_LOG_DEBUG, "edit units count %d\n", mxf->edit_units_count);
|
| 1047 |
|
| 1048 |
if (!mxf->edit_units_count && !mxf->edit_unit_byte_count)
|
| 1049 |
return;
|
| 1050 |
|
| 1051 |
avio_write(pb, index_table_segment_key, 16);
|
| 1052 |
|
| 1053 |
if (mxf->edit_unit_byte_count) {
|
| 1054 |
klv_encode_ber_length(pb, 80);
|
| 1055 |
} else {
|
| 1056 |
klv_encode_ber_length(pb, 85 + 12+(s->nb_streams+1)*6 + |
| 1057 |
12+mxf->edit_units_count*(11+mxf->slice_count*4)); |
| 1058 |
} |
| 1059 |
|
| 1060 |
// instance id
|
| 1061 |
mxf_write_local_tag(pb, 16, 0x3C0A); |
| 1062 |
mxf_write_uuid(pb, IndexTableSegment, 0);
|
| 1063 |
|
| 1064 |
// index edit rate
|
| 1065 |
mxf_write_local_tag(pb, 8, 0x3F0B); |
| 1066 |
avio_wb32(pb, mxf->time_base.den); |
| 1067 |
avio_wb32(pb, mxf->time_base.num); |
| 1068 |
|
| 1069 |
// index start position
|
| 1070 |
mxf_write_local_tag(pb, 8, 0x3F0C); |
| 1071 |
avio_wb64(pb, mxf->last_indexed_edit_unit); |
| 1072 |
|
| 1073 |
// index duration
|
| 1074 |
mxf_write_local_tag(pb, 8, 0x3F0D); |
| 1075 |
if (mxf->edit_unit_byte_count)
|
| 1076 |
avio_wb64(pb, 0); // index table covers whole container |
| 1077 |
else
|
| 1078 |
avio_wb64(pb, mxf->edit_units_count); |
| 1079 |
|
| 1080 |
// edit unit byte count
|
| 1081 |
mxf_write_local_tag(pb, 4, 0x3F05); |
| 1082 |
avio_wb32(pb, mxf->edit_unit_byte_count); |
| 1083 |
|
| 1084 |
// index sid
|
| 1085 |
mxf_write_local_tag(pb, 4, 0x3F06); |
| 1086 |
avio_wb32(pb, 2);
|
| 1087 |
|
| 1088 |
// body sid
|
| 1089 |
mxf_write_local_tag(pb, 4, 0x3F07); |
| 1090 |
avio_wb32(pb, 1);
|
| 1091 |
|
| 1092 |
if (!mxf->edit_unit_byte_count) {
|
| 1093 |
// real slice count - 1
|
| 1094 |
mxf_write_local_tag(pb, 1, 0x3F08); |
| 1095 |
avio_w8(pb, mxf->slice_count); |
| 1096 |
|
| 1097 |
// delta entry array
|
| 1098 |
mxf_write_local_tag(pb, 8 + (s->nb_streams+1)*6, 0x3F09); |
| 1099 |
avio_wb32(pb, s->nb_streams+1); // num of entries |
| 1100 |
avio_wb32(pb, 6); // size of one entry |
| 1101 |
// write system item delta entry
|
| 1102 |
avio_w8(pb, 0);
|
| 1103 |
avio_w8(pb, 0); // slice entry |
| 1104 |
avio_wb32(pb, 0); // element delta |
| 1105 |
for (i = 0; i < s->nb_streams; i++) { |
| 1106 |
AVStream *st = s->streams[i]; |
| 1107 |
MXFStreamContext *sc = st->priv_data; |
| 1108 |
avio_w8(pb, sc->temporal_reordering); |
| 1109 |
if (sc->temporal_reordering)
|
| 1110 |
temporal_reordering = 1;
|
| 1111 |
if (i == 0) { // video track |
| 1112 |
avio_w8(pb, 0); // slice number |
| 1113 |
avio_wb32(pb, KAG_SIZE); // system item size including klv fill
|
| 1114 |
} else { // audio track |
| 1115 |
unsigned audio_frame_size = sc->aic.samples[0]*sc->aic.sample_size; |
| 1116 |
audio_frame_size += klv_fill_size(audio_frame_size); |
| 1117 |
avio_w8(pb, 1);
|
| 1118 |
avio_wb32(pb, (i-1)*audio_frame_size); // element delta |
| 1119 |
} |
| 1120 |
} |
| 1121 |
|
| 1122 |
mxf_write_local_tag(pb, 8 + mxf->edit_units_count*(11+mxf->slice_count*4), 0x3F0A); |
| 1123 |
avio_wb32(pb, mxf->edit_units_count); // num of entries
|
| 1124 |
avio_wb32(pb, 11+mxf->slice_count*4); // size of one entry |
| 1125 |
|
| 1126 |
for (i = 0; i < mxf->edit_units_count; i++) { |
| 1127 |
int temporal_offset = 0; |
| 1128 |
|
| 1129 |
if (!(mxf->index_entries[i].flags & 0x33)) { // I frame |
| 1130 |
mxf->last_key_index = key_index; |
| 1131 |
key_index = i; |
| 1132 |
} |
| 1133 |
|
| 1134 |
if (temporal_reordering) {
|
| 1135 |
int pic_num_in_gop = i - key_index;
|
| 1136 |
if (pic_num_in_gop != mxf->index_entries[i].temporal_ref) {
|
| 1137 |
for (j = key_index; j < mxf->edit_units_count; j++) {
|
| 1138 |
if (pic_num_in_gop == mxf->index_entries[j].temporal_ref)
|
| 1139 |
break;
|
| 1140 |
} |
| 1141 |
if (j == mxf->edit_units_count)
|
| 1142 |
av_log(s, AV_LOG_WARNING, "missing frames\n");
|
| 1143 |
temporal_offset = j - key_index - pic_num_in_gop; |
| 1144 |
} |
| 1145 |
} |
| 1146 |
avio_w8(pb, temporal_offset); |
| 1147 |
|
| 1148 |
if ((mxf->index_entries[i].flags & 0x30) == 0x30) { // back and forward prediction |
| 1149 |
avio_w8(pb, mxf->last_key_index - i); |
| 1150 |
} else {
|
| 1151 |
avio_w8(pb, key_index - i); // key frame offset
|
| 1152 |
if ((mxf->index_entries[i].flags & 0x20) == 0x20) // only forward |
| 1153 |
mxf->last_key_index = key_index; |
| 1154 |
} |
| 1155 |
|
| 1156 |
if (!(mxf->index_entries[i].flags & 0x33) && // I frame |
| 1157 |
mxf->index_entries[i].flags & 0x40 && !temporal_offset)
|
| 1158 |
mxf->index_entries[i].flags |= 0x80; // random access |
| 1159 |
avio_w8(pb, mxf->index_entries[i].flags); |
| 1160 |
// stream offset
|
| 1161 |
avio_wb64(pb, mxf->index_entries[i].offset); |
| 1162 |
if (s->nb_streams > 1) |
| 1163 |
avio_wb32(pb, mxf->index_entries[i].slice_offset); |
| 1164 |
} |
| 1165 |
|
| 1166 |
mxf->last_key_index = key_index - mxf->edit_units_count; |
| 1167 |
mxf->last_indexed_edit_unit += mxf->edit_units_count; |
| 1168 |
mxf->edit_units_count = 0;
|
| 1169 |
} |
| 1170 |
} |
| 1171 |
|
| 1172 |
static void mxf_write_klv_fill(AVFormatContext *s) |
| 1173 |
{
|
| 1174 |
unsigned pad = klv_fill_size(avio_tell(s->pb));
|
| 1175 |
if (pad) {
|
| 1176 |
avio_write(s->pb, klv_fill_key, 16);
|
| 1177 |
pad -= 16 + 4; |
| 1178 |
klv_encode_ber4_length(s->pb, pad); |
| 1179 |
for (; pad; pad--)
|
| 1180 |
avio_w8(s->pb, 0);
|
| 1181 |
assert(!(avio_tell(s->pb) & (KAG_SIZE-1)));
|
| 1182 |
} |
| 1183 |
} |
| 1184 |
|
| 1185 |
static void mxf_write_partition(AVFormatContext *s, int bodysid, |
| 1186 |
int indexsid,
|
| 1187 |
const uint8_t *key, int write_metadata) |
| 1188 |
{
|
| 1189 |
MXFContext *mxf = s->priv_data; |
| 1190 |
AVIOContext *pb = s->pb; |
| 1191 |
int64_t header_byte_count_offset; |
| 1192 |
unsigned index_byte_count = 0; |
| 1193 |
uint64_t partition_offset = avio_tell(pb); |
| 1194 |
|
| 1195 |
if (!mxf->edit_unit_byte_count && mxf->edit_units_count)
|
| 1196 |
index_byte_count = 85 + 12+(s->nb_streams+1)*6 + |
| 1197 |
12+mxf->edit_units_count*(11+mxf->slice_count*4); |
| 1198 |
else if (mxf->edit_unit_byte_count && indexsid) |
| 1199 |
index_byte_count = 80;
|
| 1200 |
|
| 1201 |
if (index_byte_count) {
|
| 1202 |
// add encoded ber length
|
| 1203 |
index_byte_count += 16 + klv_ber_length(index_byte_count);
|
| 1204 |
index_byte_count += klv_fill_size(index_byte_count); |
| 1205 |
} |
| 1206 |
|
| 1207 |
if (!memcmp(key, body_partition_key, 16)) { |
| 1208 |
mxf->body_partition_offset = |
| 1209 |
av_realloc(mxf->body_partition_offset, |
| 1210 |
(mxf->body_partitions_count+1)*
|
| 1211 |
sizeof(*mxf->body_partition_offset));
|
| 1212 |
mxf->body_partition_offset[mxf->body_partitions_count++] = partition_offset; |
| 1213 |
} |
| 1214 |
|
| 1215 |
// write klv
|
| 1216 |
avio_write(pb, key, 16);
|
| 1217 |
klv_encode_ber_length(pb, 88 + 16 * mxf->essence_container_count); |
| 1218 |
|
| 1219 |
// write partition value
|
| 1220 |
avio_wb16(pb, 1); // majorVersion |
| 1221 |
avio_wb16(pb, 2); // minorVersion |
| 1222 |
avio_wb32(pb, KAG_SIZE); // KAGSize
|
| 1223 |
|
| 1224 |
avio_wb64(pb, partition_offset); // ThisPartition
|
| 1225 |
|
| 1226 |
if (!memcmp(key, body_partition_key, 16) && mxf->body_partitions_count > 1) |
| 1227 |
avio_wb64(pb, mxf->body_partition_offset[mxf->body_partitions_count-2]); // PreviousPartition |
| 1228 |
else if (!memcmp(key, footer_partition_key, 16) && mxf->body_partitions_count) |
| 1229 |
avio_wb64(pb, mxf->body_partition_offset[mxf->body_partitions_count-1]); // PreviousPartition |
| 1230 |
else
|
| 1231 |
avio_wb64(pb, 0);
|
| 1232 |
|
| 1233 |
avio_wb64(pb, mxf->footer_partition_offset); // footerPartition
|
| 1234 |
|
| 1235 |
// set offset
|
| 1236 |
header_byte_count_offset = avio_tell(pb); |
| 1237 |
avio_wb64(pb, 0); // headerByteCount, update later |
| 1238 |
|
| 1239 |
// indexTable
|
| 1240 |
avio_wb64(pb, index_byte_count); // indexByteCount
|
| 1241 |
avio_wb32(pb, index_byte_count ? indexsid : 0); // indexSID |
| 1242 |
|
| 1243 |
// BodyOffset
|
| 1244 |
if (bodysid && mxf->edit_units_count && mxf->body_partitions_count) {
|
| 1245 |
avio_wb64(pb, mxf->body_offset); |
| 1246 |
} else
|
| 1247 |
avio_wb64(pb, 0);
|
| 1248 |
|
| 1249 |
avio_wb32(pb, bodysid); // bodySID
|
| 1250 |
|
| 1251 |
// operational pattern
|
| 1252 |
avio_write(pb, op1a_ul, 16);
|
| 1253 |
|
| 1254 |
// essence container
|
| 1255 |
mxf_write_essence_container_refs(s); |
| 1256 |
|
| 1257 |
if (write_metadata) {
|
| 1258 |
// mark the start of the headermetadata and calculate metadata size
|
| 1259 |
int64_t pos, start; |
| 1260 |
unsigned header_byte_count;
|
| 1261 |
|
| 1262 |
mxf_write_klv_fill(s); |
| 1263 |
start = avio_tell(s->pb); |
| 1264 |
mxf_write_primer_pack(s); |
| 1265 |
mxf_write_header_metadata_sets(s); |
| 1266 |
pos = avio_tell(s->pb); |
| 1267 |
header_byte_count = pos - start + klv_fill_size(pos); |
| 1268 |
|
| 1269 |
// update header_byte_count
|
| 1270 |
avio_seek(pb, header_byte_count_offset, SEEK_SET); |
| 1271 |
avio_wb64(pb, header_byte_count); |
| 1272 |
avio_seek(pb, pos, SEEK_SET); |
| 1273 |
} |
| 1274 |
|
| 1275 |
put_flush_packet(pb); |
| 1276 |
} |
| 1277 |
|
| 1278 |
static const UID mxf_mpeg2_codec_uls[] = { |
| 1279 |
{ 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x03,0x04,0x01,0x02,0x02,0x01,0x01,0x10,0x00 }, // MP-ML I-Frame
|
| 1280 |
{ 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x03,0x04,0x01,0x02,0x02,0x01,0x01,0x11,0x00 }, // MP-ML Long GOP
|
| 1281 |
{ 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x03,0x04,0x01,0x02,0x02,0x01,0x02,0x02,0x00 }, // 422P-ML I-Frame
|
| 1282 |
{ 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x03,0x04,0x01,0x02,0x02,0x01,0x02,0x03,0x00 }, // 422P-ML Long GOP
|
| 1283 |
{ 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x03,0x04,0x01,0x02,0x02,0x01,0x03,0x02,0x00 }, // MP-HL I-Frame
|
| 1284 |
{ 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x03,0x04,0x01,0x02,0x02,0x01,0x03,0x03,0x00 }, // MP-HL Long GOP
|
| 1285 |
{ 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x03,0x04,0x01,0x02,0x02,0x01,0x04,0x02,0x00 }, // 422P-HL I-Frame
|
| 1286 |
{ 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x03,0x04,0x01,0x02,0x02,0x01,0x04,0x03,0x00 }, // 422P-HL Long GOP
|
| 1287 |
}; |
| 1288 |
|
| 1289 |
static const UID *mxf_get_mpeg2_codec_ul(AVCodecContext *avctx) |
| 1290 |
{
|
| 1291 |
int long_gop = avctx->gop_size > 1 || avctx->has_b_frames; |
| 1292 |
|
| 1293 |
if (avctx->profile == 4) { // Main |
| 1294 |
if (avctx->level == 8) // Main |
| 1295 |
return &mxf_mpeg2_codec_uls[0+long_gop]; |
| 1296 |
else if (avctx->level == 4) // High |
| 1297 |
return &mxf_mpeg2_codec_uls[4+long_gop]; |
| 1298 |
} else if (avctx->profile == 0) { // 422 |
| 1299 |
if (avctx->level == 5) // Main |
| 1300 |
return &mxf_mpeg2_codec_uls[2+long_gop]; |
| 1301 |
else if (avctx->level == 2) // High |
| 1302 |
return &mxf_mpeg2_codec_uls[6+long_gop]; |
| 1303 |
} |
| 1304 |
return NULL; |
| 1305 |
} |
| 1306 |
|
| 1307 |
static int mxf_parse_mpeg2_frame(AVFormatContext *s, AVStream *st, |
| 1308 |
AVPacket *pkt, MXFIndexEntry *e) |
| 1309 |
{
|
| 1310 |
MXFStreamContext *sc = st->priv_data; |
| 1311 |
MXFContext *mxf = s->priv_data; |
| 1312 |
uint32_t c = -1;
|
| 1313 |
int i;
|
| 1314 |
|
| 1315 |
for(i = 0; i < pkt->size - 4; i++) { |
| 1316 |
c = (c<<8) + pkt->data[i];
|
| 1317 |
if (c == 0x1b5) { |
| 1318 |
if ((pkt->data[i+1] & 0xf0) == 0x10) { // seq ext |
| 1319 |
st->codec->profile = pkt->data[i+1] & 0x07; |
| 1320 |
st->codec->level = pkt->data[i+2] >> 4; |
| 1321 |
} else if (i + 5 < pkt->size && (pkt->data[i+1] & 0xf0) == 0x80) { // pict coding ext |
| 1322 |
sc->interlaced = !(pkt->data[i+5] & 0x80); // progressive frame |
| 1323 |
break;
|
| 1324 |
} |
| 1325 |
} else if (c == 0x1b8) { // gop |
| 1326 |
if (pkt->data[i+4]>>6 & 0x01) { // closed |
| 1327 |
sc->closed_gop = 1;
|
| 1328 |
if (e->flags & 0x40) // sequence header present |
| 1329 |
e->flags |= 0x80; // random access |
| 1330 |
} |
| 1331 |
if (!mxf->header_written) {
|
| 1332 |
unsigned hours = (pkt->data[i+1]>>2) & 0x1f; |
| 1333 |
unsigned minutes = ((pkt->data[i+1] & 0x03) << 4) | (pkt->data[i+2]>>4); |
| 1334 |
unsigned seconds = ((pkt->data[i+2] & 0x07) << 3) | (pkt->data[i+3]>>5); |
| 1335 |
unsigned frames = ((pkt->data[i+3] & 0x1f) << 1) | (pkt->data[i+4]>>7); |
| 1336 |
mxf->timecode_drop_frame = !!(pkt->data[i+1] & 0x80); |
| 1337 |
mxf->timecode_start = (hours*3600 + minutes*60 + seconds) * |
| 1338 |
mxf->timecode_base + frames; |
| 1339 |
if (mxf->timecode_drop_frame) {
|
| 1340 |
unsigned tminutes = 60 * hours + minutes; |
| 1341 |
mxf->timecode_start -= 2 * (tminutes - tminutes / 10); |
| 1342 |
} |
| 1343 |
av_log(s, AV_LOG_DEBUG, "frame %d %d:%d:%d%c%d\n", mxf->timecode_start,
|
| 1344 |
hours, minutes, seconds, mxf->timecode_drop_frame ? ';':':', frames); |
| 1345 |
} |
| 1346 |
} else if (c == 0x1b3) { // seq |
| 1347 |
e->flags |= 0x40;
|
| 1348 |
switch ((pkt->data[i+4]>>4) & 0xf) { |
| 1349 |
case 2: sc->aspect_ratio = (AVRational){ 4, 3}; break; |
| 1350 |
case 3: sc->aspect_ratio = (AVRational){ 16, 9}; break; |
| 1351 |
case 4: sc->aspect_ratio = (AVRational){221,100}; break; |
| 1352 |
default:
|
| 1353 |
av_reduce(&sc->aspect_ratio.num, &sc->aspect_ratio.den, |
| 1354 |
st->codec->width, st->codec->height, 1024*1024); |
| 1355 |
} |
| 1356 |
} else if (c == 0x100) { // pic |
| 1357 |
int pict_type = (pkt->data[i+2]>>3) & 0x07; |
| 1358 |
e->temporal_ref = (pkt->data[i+1]<<2) | (pkt->data[i+2]>>6); |
| 1359 |
if (pict_type == 2) { // P frame |
| 1360 |
e->flags |= 0x22;
|
| 1361 |
sc->closed_gop = 0; // reset closed gop, don't matter anymore |
| 1362 |
} else if (pict_type == 3) { // B frame |
| 1363 |
if (sc->closed_gop)
|
| 1364 |
e->flags |= 0x13; // only backward prediction |
| 1365 |
else
|
| 1366 |
e->flags |= 0x33;
|
| 1367 |
sc->temporal_reordering = -1;
|
| 1368 |
} else if (!pict_type) { |
| 1369 |
av_log(s, AV_LOG_ERROR, "error parsing mpeg2 frame\n");
|
| 1370 |
return 0; |
| 1371 |
} |
| 1372 |
} |
| 1373 |
} |
| 1374 |
if (s->oformat != &ff_mxf_d10_muxer)
|
| 1375 |
sc->codec_ul = mxf_get_mpeg2_codec_ul(st->codec); |
| 1376 |
return !!sc->codec_ul;
|
| 1377 |
} |
| 1378 |
|
| 1379 |
static uint64_t mxf_parse_timestamp(time_t timestamp)
|
| 1380 |
{
|
| 1381 |
struct tm *time = gmtime(×tamp);
|
| 1382 |
if (!time)
|
| 1383 |
return 0; |
| 1384 |
return (uint64_t)(time->tm_year+1900) << 48 | |
| 1385 |
(uint64_t)(time->tm_mon+1) << 40 | |
| 1386 |
(uint64_t) time->tm_mday << 32 |
|
| 1387 |
time->tm_hour << 24 |
|
| 1388 |
time->tm_min << 16 |
|
| 1389 |
time->tm_sec << 8;
|
| 1390 |
} |
| 1391 |
|
| 1392 |
static void mxf_gen_umid(AVFormatContext *s) |
| 1393 |
{
|
| 1394 |
MXFContext *mxf = s->priv_data; |
| 1395 |
uint32_t seed = av_get_random_seed(); |
| 1396 |
uint64_t umid = seed + 0x5294713400000000LL;
|
| 1397 |
|
| 1398 |
AV_WB64(mxf->umid , umid); |
| 1399 |
AV_WB64(mxf->umid+8, umid>>8); |
| 1400 |
|
| 1401 |
mxf->instance_number = seed; |
| 1402 |
} |
| 1403 |
|
| 1404 |
static int mxf_write_header(AVFormatContext *s) |
| 1405 |
{
|
| 1406 |
MXFContext *mxf = s->priv_data; |
| 1407 |
int i;
|
| 1408 |
uint8_t present[FF_ARRAY_ELEMS(mxf_essence_container_uls)] = {0};
|
| 1409 |
const int *samples_per_frame = NULL; |
| 1410 |
|
| 1411 |
if (!s->nb_streams)
|
| 1412 |
return -1; |
| 1413 |
|
| 1414 |
for (i = 0; i < s->nb_streams; i++) { |
| 1415 |
AVStream *st = s->streams[i]; |
| 1416 |
MXFStreamContext *sc = av_mallocz(sizeof(*sc));
|
| 1417 |
if (!sc)
|
| 1418 |
return AVERROR(ENOMEM);
|
| 1419 |
st->priv_data = sc; |
| 1420 |
|
| 1421 |
if (st->codec->codec_type == AVMEDIA_TYPE_VIDEO) {
|
| 1422 |
if (i != 0) { |
| 1423 |
av_log(s, AV_LOG_ERROR, "video stream must be first track\n");
|
| 1424 |
return -1; |
| 1425 |
} |
| 1426 |
if (fabs(av_q2d(st->codec->time_base) - 1/25.0) < 0.0001) { |
| 1427 |
samples_per_frame = PAL_samples_per_frame; |
| 1428 |
mxf->time_base = (AVRational){ 1, 25 };
|
| 1429 |
mxf->timecode_base = 25;
|
| 1430 |
} else if (fabs(av_q2d(st->codec->time_base) - 1001/30000.0) < 0.0001) { |
| 1431 |
samples_per_frame = NTSC_samples_per_frame; |
| 1432 |
mxf->time_base = (AVRational){ 1001, 30000 };
|
| 1433 |
mxf->timecode_base = 30;
|
| 1434 |
} else {
|
| 1435 |
av_log(s, AV_LOG_ERROR, "unsupported video frame rate\n");
|
| 1436 |
return -1; |
| 1437 |
} |
| 1438 |
av_set_pts_info(st, 64, mxf->time_base.num, mxf->time_base.den);
|
| 1439 |
if (s->oformat == &ff_mxf_d10_muxer) {
|
| 1440 |
if (st->codec->bit_rate == 50000000) |
| 1441 |
if (mxf->time_base.den == 25) sc->index = 3; |
| 1442 |
else sc->index = 5; |
| 1443 |
else if (st->codec->bit_rate == 40000000) |
| 1444 |
if (mxf->time_base.den == 25) sc->index = 7; |
| 1445 |
else sc->index = 9; |
| 1446 |
else if (st->codec->bit_rate == 30000000) |
| 1447 |
if (mxf->time_base.den == 25) sc->index = 11; |
| 1448 |
else sc->index = 13; |
| 1449 |
else {
|
| 1450 |
av_log(s, AV_LOG_ERROR, "error MXF D-10 only support 30/40/50 mbit/s\n");
|
| 1451 |
return -1; |
| 1452 |
} |
| 1453 |
|
| 1454 |
mxf->edit_unit_byte_count = KAG_SIZE; // system element
|
| 1455 |
mxf->edit_unit_byte_count += 16 + 4 + (uint64_t)st->codec->bit_rate * |
| 1456 |
mxf->time_base.num / (8*mxf->time_base.den);
|
| 1457 |
mxf->edit_unit_byte_count += klv_fill_size(mxf->edit_unit_byte_count); |
| 1458 |
mxf->edit_unit_byte_count += 16 + 4 + 4 + samples_per_frame[0]*8*4; |
| 1459 |
mxf->edit_unit_byte_count += klv_fill_size(mxf->edit_unit_byte_count); |
| 1460 |
} |
| 1461 |
} else if (st->codec->codec_type == AVMEDIA_TYPE_AUDIO) { |
| 1462 |
if (st->codec->sample_rate != 48000) { |
| 1463 |
av_log(s, AV_LOG_ERROR, "only 48khz is implemented\n");
|
| 1464 |
return -1; |
| 1465 |
} |
| 1466 |
av_set_pts_info(st, 64, 1, st->codec->sample_rate); |
| 1467 |
if (s->oformat == &ff_mxf_d10_muxer) {
|
| 1468 |
if (st->index != 1) { |
| 1469 |
av_log(s, AV_LOG_ERROR, "MXF D-10 only support one audio track\n");
|
| 1470 |
return -1; |
| 1471 |
} |
| 1472 |
if (st->codec->codec_id != CODEC_ID_PCM_S16LE &&
|
| 1473 |
st->codec->codec_id != CODEC_ID_PCM_S24LE) {
|
| 1474 |
av_log(s, AV_LOG_ERROR, "MXF D-10 only support 16 or 24 bits le audio\n");
|
| 1475 |
} |
| 1476 |
sc->index = ((MXFStreamContext*)s->streams[0]->priv_data)->index + 1; |
| 1477 |
} else
|
| 1478 |
mxf->slice_count = 1;
|
| 1479 |
} |
| 1480 |
|
| 1481 |
if (!sc->index) {
|
| 1482 |
sc->index = mxf_get_essence_container_ul_index(st->codec->codec_id); |
| 1483 |
if (sc->index == -1) { |
| 1484 |
av_log(s, AV_LOG_ERROR, "track %d: could not find essence container ul, "
|
| 1485 |
"codec not currently supported in container\n", i);
|
| 1486 |
return -1; |
| 1487 |
} |
| 1488 |
} |
| 1489 |
|
| 1490 |
sc->codec_ul = &mxf_essence_container_uls[sc->index].codec_ul; |
| 1491 |
|
| 1492 |
memcpy(sc->track_essence_element_key, mxf_essence_container_uls[sc->index].element_ul, 15);
|
| 1493 |
sc->track_essence_element_key[15] = present[sc->index];
|
| 1494 |
PRINT_KEY(s, "track essence element key", sc->track_essence_element_key);
|
| 1495 |
|
| 1496 |
if (!present[sc->index])
|
| 1497 |
mxf->essence_container_count++; |
| 1498 |
present[sc->index]++; |
| 1499 |
} |
| 1500 |
|
| 1501 |
if (s->oformat == &ff_mxf_d10_muxer) {
|
| 1502 |
mxf->essence_container_count = 1;
|
| 1503 |
} |
| 1504 |
|
| 1505 |
if (!(s->streams[0]->codec->flags & CODEC_FLAG_BITEXACT)) |
| 1506 |
mxf_gen_umid(s); |
| 1507 |
|
| 1508 |
for (i = 0; i < s->nb_streams; i++) { |
| 1509 |
MXFStreamContext *sc = s->streams[i]->priv_data; |
| 1510 |
// update element count
|
| 1511 |
sc->track_essence_element_key[13] = present[sc->index];
|
| 1512 |
sc->order = AV_RB32(sc->track_essence_element_key+12);
|
| 1513 |
} |
| 1514 |
|
| 1515 |
if (s->timestamp)
|
| 1516 |
mxf->timestamp = mxf_parse_timestamp(s->timestamp); |
| 1517 |
mxf->duration = -1;
|
| 1518 |
|
| 1519 |
mxf->timecode_track = av_mallocz(sizeof(*mxf->timecode_track));
|
| 1520 |
if (!mxf->timecode_track)
|
| 1521 |
return AVERROR(ENOMEM);
|
| 1522 |
mxf->timecode_track->priv_data = av_mallocz(sizeof(MXFStreamContext));
|
| 1523 |
if (!mxf->timecode_track->priv_data)
|
| 1524 |
return AVERROR(ENOMEM);
|
| 1525 |
mxf->timecode_track->index = -1;
|
| 1526 |
|
| 1527 |
if (!samples_per_frame)
|
| 1528 |
samples_per_frame = PAL_samples_per_frame; |
| 1529 |
|
| 1530 |
if (ff_audio_interleave_init(s, samples_per_frame, mxf->time_base) < 0) |
| 1531 |
return -1; |
| 1532 |
|
| 1533 |
return 0; |
| 1534 |
} |
| 1535 |
|
| 1536 |
static const uint8_t system_metadata_pack_key[] = { 0x06,0x0E,0x2B,0x34,0x02,0x05,0x01,0x01,0x0D,0x01,0x03,0x01,0x04,0x01,0x01,0x00 }; |
| 1537 |
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 }; |
| 1538 |
|
| 1539 |
static uint32_t ff_framenum_to_12m_time_code(unsigned frame, int drop, int fps) |
| 1540 |
{
|
| 1541 |
return (0 << 31) | // color frame flag |
| 1542 |
(0 << 30) | // drop frame flag |
| 1543 |
( ((frame % fps) / 10) << 28) | // tens of frames |
| 1544 |
( ((frame % fps) % 10) << 24) | // units of frames |
| 1545 |
(0 << 23) | // field phase (NTSC), b0 (PAL) |
| 1546 |
((((frame / fps) % 60) / 10) << 20) | // tens of seconds |
| 1547 |
((((frame / fps) % 60) % 10) << 16) | // units of seconds |
| 1548 |
(0 << 15) | // b0 (NTSC), b2 (PAL) |
| 1549 |
((((frame / (fps * 60)) % 60) / 10) << 12) | // tens of minutes |
| 1550 |
((((frame / (fps * 60)) % 60) % 10) << 8) | // units of minutes |
| 1551 |
(0 << 7) | // b1 |
| 1552 |
(0 << 6) | // b2 (NSC), field phase (PAL) |
| 1553 |
((((frame / (fps * 3600) % 24)) / 10) << 4) | // tens of hours |
| 1554 |
( (frame / (fps * 3600) % 24)) % 10; // units of hours |
| 1555 |
} |
| 1556 |
|
| 1557 |
static void mxf_write_system_item(AVFormatContext *s) |
| 1558 |
{
|
| 1559 |
MXFContext *mxf = s->priv_data; |
| 1560 |
AVIOContext *pb = s->pb; |
| 1561 |
unsigned frame;
|
| 1562 |
uint32_t time_code; |
| 1563 |
|
| 1564 |
frame = mxf->timecode_start + mxf->last_indexed_edit_unit + mxf->edit_units_count; |
| 1565 |
|
| 1566 |
// write system metadata pack
|
| 1567 |
avio_write(pb, system_metadata_pack_key, 16);
|
| 1568 |
klv_encode_ber4_length(pb, 57);
|
| 1569 |
avio_w8(pb, 0x5c); // UL, user date/time stamp, picture and sound item present |
| 1570 |
avio_w8(pb, 0x04); // content package rate |
| 1571 |
avio_w8(pb, 0x00); // content package type |
| 1572 |
avio_wb16(pb, 0x00); // channel handle |
| 1573 |
avio_wb16(pb, frame); // continuity count
|
| 1574 |
if (mxf->essence_container_count > 1) |
| 1575 |
avio_write(pb, multiple_desc_ul, 16);
|
| 1576 |
else {
|
| 1577 |
MXFStreamContext *sc = s->streams[0]->priv_data;
|
| 1578 |
avio_write(pb, mxf_essence_container_uls[sc->index].container_ul, 16);
|
| 1579 |
} |
| 1580 |
avio_w8(pb, 0);
|
| 1581 |
avio_wb64(pb, 0);
|
| 1582 |
avio_wb64(pb, 0); // creation date/time stamp |
| 1583 |
|
| 1584 |
avio_w8(pb, 0x81); // SMPTE 12M time code |
| 1585 |
time_code = ff_framenum_to_12m_time_code(frame, mxf->timecode_drop_frame, mxf->timecode_base); |
| 1586 |
avio_wb32(pb, time_code); |
| 1587 |
avio_wb32(pb, 0); // binary group data |
| 1588 |
avio_wb64(pb, 0);
|
| 1589 |
|
| 1590 |
// write system metadata package set
|
| 1591 |
avio_write(pb, system_metadata_package_set_key, 16);
|
| 1592 |
klv_encode_ber4_length(pb, 35);
|
| 1593 |
avio_w8(pb, 0x83); // UMID |
| 1594 |
avio_wb16(pb, 0x20);
|
| 1595 |
mxf_write_umid(s, 1);
|
| 1596 |
} |
| 1597 |
|
| 1598 |
static void mxf_write_d10_video_packet(AVFormatContext *s, AVStream *st, AVPacket *pkt) |
| 1599 |
{
|
| 1600 |
MXFContext *mxf = s->priv_data; |
| 1601 |
AVIOContext *pb = s->pb; |
| 1602 |
int packet_size = (uint64_t)st->codec->bit_rate*mxf->time_base.num /
|
| 1603 |
(8*mxf->time_base.den); // frame size |
| 1604 |
int pad;
|
| 1605 |
|
| 1606 |
packet_size += 16 + 4; |
| 1607 |
packet_size += klv_fill_size(packet_size); |
| 1608 |
|
| 1609 |
klv_encode_ber4_length(pb, pkt->size); |
| 1610 |
avio_write(pb, pkt->data, pkt->size); |
| 1611 |
|
| 1612 |
// ensure CBR muxing by padding to correct video frame size
|
| 1613 |
pad = packet_size - pkt->size - 16 - 4; |
| 1614 |
if (pad > 20) { |
| 1615 |
avio_write(s->pb, klv_fill_key, 16);
|
| 1616 |
pad -= 16 + 4; |
| 1617 |
klv_encode_ber4_length(s->pb, pad); |
| 1618 |
for (; pad; pad--)
|
| 1619 |
avio_w8(s->pb, 0);
|
| 1620 |
assert(!(avio_tell(s->pb) & (KAG_SIZE-1)));
|
| 1621 |
} else {
|
| 1622 |
av_log(s, AV_LOG_WARNING, "cannot fill d-10 video packet\n");
|
| 1623 |
for (; pad > 0; pad--) |
| 1624 |
avio_w8(s->pb, 0);
|
| 1625 |
} |
| 1626 |
} |
| 1627 |
|
| 1628 |
static void mxf_write_d10_audio_packet(AVFormatContext *s, AVStream *st, AVPacket *pkt) |
| 1629 |
{
|
| 1630 |
MXFContext *mxf = s->priv_data; |
| 1631 |
AVIOContext *pb = s->pb; |
| 1632 |
int frame_size = pkt->size / st->codec->block_align;
|
| 1633 |
uint8_t *samples = pkt->data; |
| 1634 |
uint8_t *end = pkt->data + pkt->size; |
| 1635 |
int i;
|
| 1636 |
|
| 1637 |
klv_encode_ber4_length(pb, 4 + frame_size*4*8); |
| 1638 |
|
| 1639 |
avio_w8(pb, (frame_size == 1920 ? 0 : (mxf->edit_units_count-1) % 5 + 1)); |
| 1640 |
avio_wl16(pb, frame_size); |
| 1641 |
avio_w8(pb, (1<<st->codec->channels)-1); |
| 1642 |
|
| 1643 |
while (samples < end) {
|
| 1644 |
for (i = 0; i < st->codec->channels; i++) { |
| 1645 |
uint32_t sample; |
| 1646 |
if (st->codec->codec_id == CODEC_ID_PCM_S24LE) {
|
| 1647 |
sample = AV_RL24(samples)<< 4;
|
| 1648 |
samples += 3;
|
| 1649 |
} else {
|
| 1650 |
sample = AV_RL16(samples)<<12;
|
| 1651 |
samples += 2;
|
| 1652 |
} |
| 1653 |
avio_wl32(pb, sample | i); |
| 1654 |
} |
| 1655 |
for (; i < 8; i++) |
| 1656 |
avio_wl32(pb, i); |
| 1657 |
} |
| 1658 |
} |
| 1659 |
|
| 1660 |
static int mxf_write_packet(AVFormatContext *s, AVPacket *pkt) |
| 1661 |
{
|
| 1662 |
MXFContext *mxf = s->priv_data; |
| 1663 |
AVIOContext *pb = s->pb; |
| 1664 |
AVStream *st = s->streams[pkt->stream_index]; |
| 1665 |
MXFStreamContext *sc = st->priv_data; |
| 1666 |
MXFIndexEntry ie = {0};
|
| 1667 |
|
| 1668 |
if (!mxf->edit_unit_byte_count && !(mxf->edit_units_count % EDIT_UNITS_PER_BODY)) {
|
| 1669 |
mxf->index_entries = av_realloc(mxf->index_entries, |
| 1670 |
(mxf->edit_units_count + EDIT_UNITS_PER_BODY)*sizeof(*mxf->index_entries));
|
| 1671 |
if (!mxf->index_entries) {
|
| 1672 |
av_log(s, AV_LOG_ERROR, "could not allocate index entries\n");
|
| 1673 |
return -1; |
| 1674 |
} |
| 1675 |
} |
| 1676 |
|
| 1677 |
if (st->codec->codec_id == CODEC_ID_MPEG2VIDEO) {
|
| 1678 |
if (!mxf_parse_mpeg2_frame(s, st, pkt, &ie)) {
|
| 1679 |
av_log(s, AV_LOG_ERROR, "could not get mpeg2 profile and level\n");
|
| 1680 |
return -1; |
| 1681 |
} |
| 1682 |
} |
| 1683 |
|
| 1684 |
if (!mxf->header_written) {
|
| 1685 |
if (mxf->edit_unit_byte_count) {
|
| 1686 |
mxf_write_partition(s, 1, 2, header_open_partition_key, 1); |
| 1687 |
mxf_write_klv_fill(s); |
| 1688 |
mxf_write_index_table_segment(s); |
| 1689 |
} else {
|
| 1690 |
mxf_write_partition(s, 0, 0, header_open_partition_key, 1); |
| 1691 |
} |
| 1692 |
mxf->header_written = 1;
|
| 1693 |
} |
| 1694 |
|
| 1695 |
if (st->index == 0) { |
| 1696 |
if (!mxf->edit_unit_byte_count &&
|
| 1697 |
(!mxf->edit_units_count || mxf->edit_units_count > EDIT_UNITS_PER_BODY) && |
| 1698 |
!(ie.flags & 0x33)) { // I frame, Gop start |
| 1699 |
mxf_write_klv_fill(s); |
| 1700 |
mxf_write_partition(s, 1, 2, body_partition_key, 0); |
| 1701 |
|
| 1702 |
mxf_write_klv_fill(s); |
| 1703 |
mxf_write_index_table_segment(s); |
| 1704 |
} |
| 1705 |
|
| 1706 |
mxf_write_klv_fill(s); |
| 1707 |
mxf_write_system_item(s); |
| 1708 |
|
| 1709 |
if (!mxf->edit_unit_byte_count) {
|
| 1710 |
mxf->index_entries[mxf->edit_units_count].offset = mxf->body_offset; |
| 1711 |
mxf->index_entries[mxf->edit_units_count].flags = ie.flags; |
| 1712 |
mxf->index_entries[mxf->edit_units_count].temporal_ref = ie.temporal_ref; |
| 1713 |
mxf->body_offset += KAG_SIZE; // size of system element
|
| 1714 |
} |
| 1715 |
mxf->edit_units_count++; |
| 1716 |
} else if (!mxf->edit_unit_byte_count && st->index == 1) { |
| 1717 |
mxf->index_entries[mxf->edit_units_count-1].slice_offset =
|
| 1718 |
mxf->body_offset - mxf->index_entries[mxf->edit_units_count-1].offset;
|
| 1719 |
} |
| 1720 |
|
| 1721 |
mxf_write_klv_fill(s); |
| 1722 |
avio_write(pb, sc->track_essence_element_key, 16); // write key |
| 1723 |
if (s->oformat == &ff_mxf_d10_muxer) {
|
| 1724 |
if (st->codec->codec_type == AVMEDIA_TYPE_VIDEO)
|
| 1725 |
mxf_write_d10_video_packet(s, st, pkt); |
| 1726 |
else
|
| 1727 |
mxf_write_d10_audio_packet(s, st, pkt); |
| 1728 |
} else {
|
| 1729 |
klv_encode_ber4_length(pb, pkt->size); // write length
|
| 1730 |
avio_write(pb, pkt->data, pkt->size); |
| 1731 |
mxf->body_offset += 16+4+pkt->size + klv_fill_size(16+4+pkt->size); |
| 1732 |
} |
| 1733 |
|
| 1734 |
put_flush_packet(pb); |
| 1735 |
|
| 1736 |
return 0; |
| 1737 |
} |
| 1738 |
|
| 1739 |
static void mxf_write_random_index_pack(AVFormatContext *s) |
| 1740 |
{
|
| 1741 |
MXFContext *mxf = s->priv_data; |
| 1742 |
AVIOContext *pb = s->pb; |
| 1743 |
uint64_t pos = avio_tell(pb); |
| 1744 |
int i;
|
| 1745 |
|
| 1746 |
avio_write(pb, random_index_pack_key, 16);
|
| 1747 |
klv_encode_ber_length(pb, 28 + 12*mxf->body_partitions_count); |
| 1748 |
|
| 1749 |
if (mxf->edit_unit_byte_count)
|
| 1750 |
avio_wb32(pb, 1); // BodySID of header partition |
| 1751 |
else
|
| 1752 |
avio_wb32(pb, 0);
|
| 1753 |
avio_wb64(pb, 0); // offset of header partition |
| 1754 |
|
| 1755 |
for (i = 0; i < mxf->body_partitions_count; i++) { |
| 1756 |
avio_wb32(pb, 1); // BodySID |
| 1757 |
avio_wb64(pb, mxf->body_partition_offset[i]); |
| 1758 |
} |
| 1759 |
|
| 1760 |
avio_wb32(pb, 0); // BodySID of footer partition |
| 1761 |
avio_wb64(pb, mxf->footer_partition_offset); |
| 1762 |
|
| 1763 |
avio_wb32(pb, avio_tell(pb) - pos + 4);
|
| 1764 |
} |
| 1765 |
|
| 1766 |
static int mxf_write_footer(AVFormatContext *s) |
| 1767 |
{
|
| 1768 |
MXFContext *mxf = s->priv_data; |
| 1769 |
AVIOContext *pb = s->pb; |
| 1770 |
|
| 1771 |
mxf->duration = mxf->last_indexed_edit_unit + mxf->edit_units_count; |
| 1772 |
|
| 1773 |
mxf_write_klv_fill(s); |
| 1774 |
mxf->footer_partition_offset = avio_tell(pb); |
| 1775 |
if (mxf->edit_unit_byte_count) { // no need to repeat index |
| 1776 |
mxf_write_partition(s, 0, 0, footer_partition_key, 0); |
| 1777 |
} else {
|
| 1778 |
mxf_write_partition(s, 0, 2, footer_partition_key, 0); |
| 1779 |
|
| 1780 |
mxf_write_klv_fill(s); |
| 1781 |
mxf_write_index_table_segment(s); |
| 1782 |
} |
| 1783 |
|
| 1784 |
mxf_write_klv_fill(s); |
| 1785 |
mxf_write_random_index_pack(s); |
| 1786 |
|
| 1787 |
if (!url_is_streamed(s->pb)) {
|
| 1788 |
avio_seek(pb, 0, SEEK_SET);
|
| 1789 |
if (mxf->edit_unit_byte_count) {
|
| 1790 |
mxf_write_partition(s, 1, 2, header_closed_partition_key, 1); |
| 1791 |
mxf_write_klv_fill(s); |
| 1792 |
mxf_write_index_table_segment(s); |
| 1793 |
} else {
|
| 1794 |
mxf_write_partition(s, 0, 0, header_closed_partition_key, 1); |
| 1795 |
} |
| 1796 |
} |
| 1797 |
|
| 1798 |
put_flush_packet(pb); |
| 1799 |
|
| 1800 |
ff_audio_interleave_close(s); |
| 1801 |
|
| 1802 |
av_freep(&mxf->index_entries); |
| 1803 |
av_freep(&mxf->body_partition_offset); |
| 1804 |
av_freep(&mxf->timecode_track->priv_data); |
| 1805 |
av_freep(&mxf->timecode_track); |
| 1806 |
|
| 1807 |
mxf_free(s); |
| 1808 |
|
| 1809 |
return 0; |
| 1810 |
} |
| 1811 |
|
| 1812 |
static int mxf_interleave_get_packet(AVFormatContext *s, AVPacket *out, AVPacket *pkt, int flush) |
| 1813 |
{
|
| 1814 |
int i, stream_count = 0; |
| 1815 |
|
| 1816 |
for (i = 0; i < s->nb_streams; i++) |
| 1817 |
stream_count += !!s->streams[i]->last_in_packet_buffer; |
| 1818 |
|
| 1819 |
if (stream_count && (s->nb_streams == stream_count || flush)) {
|
| 1820 |
AVPacketList *pktl = s->packet_buffer; |
| 1821 |
if (s->nb_streams != stream_count) {
|
| 1822 |
AVPacketList *last = NULL;
|
| 1823 |
// find last packet in edit unit
|
| 1824 |
while (pktl) {
|
| 1825 |
if (!stream_count || pktl->pkt.stream_index == 0) |
| 1826 |
break;
|
| 1827 |
last = pktl; |
| 1828 |
pktl = pktl->next; |
| 1829 |
stream_count--; |
| 1830 |
} |
| 1831 |
// purge packet queue
|
| 1832 |
while (pktl) {
|
| 1833 |
AVPacketList *next = pktl->next; |
| 1834 |
|
| 1835 |
if(s->streams[pktl->pkt.stream_index]->last_in_packet_buffer == pktl)
|
| 1836 |
s->streams[pktl->pkt.stream_index]->last_in_packet_buffer= NULL;
|
| 1837 |
av_free_packet(&pktl->pkt); |
| 1838 |
av_freep(&pktl); |
| 1839 |
pktl = next; |
| 1840 |
} |
| 1841 |
if (last)
|
| 1842 |
last->next = NULL;
|
| 1843 |
else {
|
| 1844 |
s->packet_buffer = NULL;
|
| 1845 |
s->packet_buffer_end= NULL;
|
| 1846 |
goto out;
|
| 1847 |
} |
| 1848 |
pktl = s->packet_buffer; |
| 1849 |
} |
| 1850 |
|
| 1851 |
*out = pktl->pkt; |
| 1852 |
//av_log(s, AV_LOG_DEBUG, "out st:%d dts:%lld\n", (*out).stream_index, (*out).dts);
|
| 1853 |
s->packet_buffer = pktl->next; |
| 1854 |
if(s->streams[pktl->pkt.stream_index]->last_in_packet_buffer == pktl)
|
| 1855 |
s->streams[pktl->pkt.stream_index]->last_in_packet_buffer= NULL;
|
| 1856 |
if(!s->packet_buffer)
|
| 1857 |
s->packet_buffer_end= NULL;
|
| 1858 |
av_freep(&pktl); |
| 1859 |
return 1; |
| 1860 |
} else {
|
| 1861 |
out:
|
| 1862 |
av_init_packet(out); |
| 1863 |
return 0; |
| 1864 |
} |
| 1865 |
} |
| 1866 |
|
| 1867 |
static int mxf_compare_timestamps(AVFormatContext *s, AVPacket *next, AVPacket *pkt) |
| 1868 |
{
|
| 1869 |
MXFStreamContext *sc = s->streams[pkt ->stream_index]->priv_data; |
| 1870 |
MXFStreamContext *sc2 = s->streams[next->stream_index]->priv_data; |
| 1871 |
|
| 1872 |
return next->dts > pkt->dts ||
|
| 1873 |
(next->dts == pkt->dts && sc->order < sc2->order); |
| 1874 |
} |
| 1875 |
|
| 1876 |
static int mxf_interleave(AVFormatContext *s, AVPacket *out, AVPacket *pkt, int flush) |
| 1877 |
{
|
| 1878 |
return ff_audio_rechunk_interleave(s, out, pkt, flush,
|
| 1879 |
mxf_interleave_get_packet, mxf_compare_timestamps); |
| 1880 |
} |
| 1881 |
|
| 1882 |
AVOutputFormat ff_mxf_muxer = {
|
| 1883 |
"mxf",
|
| 1884 |
NULL_IF_CONFIG_SMALL("Material eXchange Format"),
|
| 1885 |
"application/mxf",
|
| 1886 |
"mxf",
|
| 1887 |
sizeof(MXFContext),
|
| 1888 |
CODEC_ID_PCM_S16LE, |
| 1889 |
CODEC_ID_MPEG2VIDEO, |
| 1890 |
mxf_write_header, |
| 1891 |
mxf_write_packet, |
| 1892 |
mxf_write_footer, |
| 1893 |
AVFMT_NOTIMESTAMPS, |
| 1894 |
NULL,
|
| 1895 |
mxf_interleave, |
| 1896 |
}; |
| 1897 |
|
| 1898 |
AVOutputFormat ff_mxf_d10_muxer = {
|
| 1899 |
"mxf_d10",
|
| 1900 |
NULL_IF_CONFIG_SMALL("Material eXchange Format, D-10 Mapping"),
|
| 1901 |
"application/mxf",
|
| 1902 |
NULL,
|
| 1903 |
sizeof(MXFContext),
|
| 1904 |
CODEC_ID_PCM_S16LE, |
| 1905 |
CODEC_ID_MPEG2VIDEO, |
| 1906 |
mxf_write_header, |
| 1907 |
mxf_write_packet, |
| 1908 |
mxf_write_footer, |
| 1909 |
AVFMT_NOTIMESTAMPS, |
| 1910 |
NULL,
|
| 1911 |
mxf_interleave, |
| 1912 |
}; |