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ffmpeg / libavformat / mxfenc.c @ 6c53bf63

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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/fifo.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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AVOutputFormat 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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} 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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} 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)();
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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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    { 0 }
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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 },
122
      { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x04,0x01,0x02,0x02,0x01,0x02,0x01,0x02 },
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      mxf_write_cdci_desc },
124
    { { 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 },
130
      { 0x06,0x0E,0x2B,0x34,0x01,0x02,0x01,0x01,0x0D,0x01,0x03,0x01,0x05,0x01,0x01,0x00 },
131
      { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x04,0x01,0x02,0x02,0x01,0x02,0x01,0x03 },
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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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} 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_base[]            = { 0x06,0x0A,0x2B,0x34,0x01,0x01,0x01,0x05,0x01,0x01,0x0D,0x00,0x13,0x00,0x00,0x00 };
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195
/**
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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,0x01,0x02,0x01,0x01,0x01,0x01,0x00 };
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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 };
203
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
204
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
207

    
208
/**
209
 * partial key for header metadata
210
 */
211
static const uint8_t header_metadata_key[]  = { 0x06,0x0E,0x2B,0x34,0x02,0x53,0x01,0x01,0x0D,0x01,0x01,0x01,0x01 };
212
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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214
/**
215
 * SMPTE RP210 http://www.smpte-ra.org/mdd/index.html
216
 */
217
static const MXFLocalTagPair mxf_local_tag_batch[] = {
218
    // preface set
219
    { 0x3C0A, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x01,0x01,0x01,0x15,0x02,0x00,0x00,0x00,0x00}}, /* Instance UID */
220
    { 0x3B02, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x07,0x02,0x01,0x10,0x02,0x04,0x00,0x00}}, /* Last Modified Date */
221
    { 0x3B05, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x03,0x01,0x02,0x01,0x05,0x00,0x00,0x00}}, /* Version */
222
    { 0x3B06, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x06,0x01,0x01,0x04,0x06,0x04,0x00,0x00}}, /* Identifications reference */
223
    { 0x3B03, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x06,0x01,0x01,0x04,0x02,0x01,0x00,0x00}}, /* Content Storage reference */
224
    { 0x3B09, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x05,0x01,0x02,0x02,0x03,0x00,0x00,0x00,0x00}}, /* Operational Pattern UL */
225
    { 0x3B0A, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x05,0x01,0x02,0x02,0x10,0x02,0x01,0x00,0x00}}, /* Essence Containers UL batch */
226
    { 0x3B0B, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x05,0x01,0x02,0x02,0x10,0x02,0x02,0x00,0x00}}, /* DM Schemes UL batch */
227
    // Identification
228
    { 0x3C09, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x05,0x20,0x07,0x01,0x01,0x00,0x00,0x00}}, /* This Generation UID */
229
    { 0x3C01, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x05,0x20,0x07,0x01,0x02,0x01,0x00,0x00}}, /* Company Name */
230
    { 0x3C02, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x05,0x20,0x07,0x01,0x03,0x01,0x00,0x00}}, /* Product Name */
231
    { 0x3C04, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x05,0x20,0x07,0x01,0x05,0x01,0x00,0x00}}, /* Version String */
232
    { 0x3C05, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x05,0x20,0x07,0x01,0x07,0x00,0x00,0x00}}, /* Product ID */
233
    { 0x3C06, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x07,0x02,0x01,0x10,0x02,0x03,0x00,0x00}}, /* Modification Date */
234
    // Content Storage
235
    { 0x1901, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x06,0x01,0x01,0x04,0x05,0x01,0x00,0x00}}, /* Package strong reference batch */
236
    { 0x1902, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x06,0x01,0x01,0x04,0x05,0x02,0x00,0x00}}, /* Package strong reference batch */
237
    // Essence Container Data
238
    { 0x2701, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x06,0x01,0x01,0x06,0x01,0x00,0x00,0x00}}, /* Linked Package UID */
239
    { 0x3F07, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x04,0x01,0x03,0x04,0x04,0x00,0x00,0x00,0x00}}, /* BodySID */
240
    // Package
241
    { 0x4401, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x01,0x01,0x01,0x15,0x10,0x00,0x00,0x00,0x00}}, /* Package UID */
242
    { 0x4405, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x07,0x02,0x01,0x10,0x01,0x03,0x00,0x00}}, /* Package Creation Date */
243
    { 0x4404, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x07,0x02,0x01,0x10,0x02,0x05,0x00,0x00}}, /* Package Modified Date */
244
    { 0x4403, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x06,0x01,0x01,0x04,0x06,0x05,0x00,0x00}}, /* Tracks Strong reference array */
245
    { 0x4701, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x06,0x01,0x01,0x04,0x02,0x03,0x00,0x00}}, /* Descriptor */
246
    // Track
247
    { 0x4801, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x01,0x07,0x01,0x01,0x00,0x00,0x00,0x00}}, /* Track ID */
248
    { 0x4804, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x01,0x04,0x01,0x03,0x00,0x00,0x00,0x00}}, /* Track Number */
249
    { 0x4B01, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x05,0x30,0x04,0x05,0x00,0x00,0x00,0x00}}, /* Edit Rate */
250
    { 0x4B02, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x07,0x02,0x01,0x03,0x01,0x03,0x00,0x00}}, /* Origin */
251
    { 0x4803, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x06,0x01,0x01,0x04,0x02,0x04,0x00,0x00}}, /* Sequence reference */
252
    // Sequence
253
    { 0x0201, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x04,0x07,0x01,0x00,0x00,0x00,0x00,0x00}}, /* Data Definition UL */
254
    { 0x0202, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x07,0x02,0x02,0x01,0x01,0x03,0x00,0x00}}, /* Duration */
255
    { 0x1001, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x06,0x01,0x01,0x04,0x06,0x09,0x00,0x00}}, /* Structural Components reference array */
256
    // Source Clip
257
    { 0x1201, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x07,0x02,0x01,0x03,0x01,0x04,0x00,0x00}}, /* Start position */
258
    { 0x1101, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x06,0x01,0x01,0x03,0x01,0x00,0x00,0x00}}, /* SourcePackageID */
259
    { 0x1102, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x06,0x01,0x01,0x03,0x02,0x00,0x00,0x00}}, /* SourceTrackID */
260
    // Timecode Component
261
    { 0x1501, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x07,0x02,0x01,0x03,0x01,0x05,0x00,0x00}}, /* Start Time Code */
262
    { 0x1502, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x04,0x04,0x01,0x01,0x02,0x06,0x00,0x00}}, /* Rounded Time Code Base */
263
    { 0x1503, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x01,0x04,0x04,0x01,0x01,0x05,0x00,0x00,0x00}}, /* Drop Frame */
264
    // File Descriptor
265
    { 0x3F01, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x04,0x06,0x01,0x01,0x04,0x06,0x0B,0x00,0x00}}, /* Sub Descriptors reference array */
266
    { 0x3006, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x05,0x06,0x01,0x01,0x03,0x05,0x00,0x00,0x00}}, /* Linked Track ID */
267
    { 0x3001, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x01,0x04,0x06,0x01,0x01,0x00,0x00,0x00,0x00}}, /* SampleRate */
268
    { 0x3004, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x06,0x01,0x01,0x04,0x01,0x02,0x00,0x00}}, /* Essence Container */
269
    // Generic Picture Essence Descriptor
270
    { 0x320C, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x01,0x04,0x01,0x03,0x01,0x04,0x00,0x00,0x00}}, /* Frame Layout */
271
    { 0x320D, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x04,0x01,0x03,0x02,0x05,0x00,0x00,0x00}}, /* Video Line Map */
272
    { 0x3203, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x01,0x04,0x01,0x05,0x02,0x02,0x00,0x00,0x00}}, /* Stored Width */
273
    { 0x3202, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x01,0x04,0x01,0x05,0x02,0x01,0x00,0x00,0x00}}, /* Stored Height */
274
    { 0x3209, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x01,0x04,0x01,0x05,0x01,0x0C,0x00,0x00,0x00}}, /* Display Width */
275
    { 0x3208, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x01,0x04,0x01,0x05,0x01,0x0B,0x00,0x00,0x00}}, /* Display Height */
276
    { 0x320E, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x01,0x04,0x01,0x01,0x01,0x01,0x00,0x00,0x00}}, /* Aspect Ratio */
277
    { 0x3201, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x04,0x01,0x06,0x01,0x00,0x00,0x00,0x00}}, /* Picture Essence Coding */
278
    // CDCI Picture Essence Descriptor
279
    { 0x3301, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x04,0x01,0x05,0x03,0x0A,0x00,0x00,0x00}}, /* Component Depth */
280
    { 0x3302, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x01,0x04,0x01,0x05,0x01,0x05,0x00,0x00,0x00}}, /* Horizontal Subsampling */
281
    // Generic Sound Essence Descriptor
282
    { 0x3D02, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x04,0x04,0x02,0x03,0x01,0x04,0x00,0x00,0x00}}, /* Locked/Unlocked */
283
    { 0x3D03, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x05,0x04,0x02,0x03,0x01,0x01,0x01,0x00,0x00}}, /* Audio sampling rate */
284
    { 0x3D07, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x05,0x04,0x02,0x01,0x01,0x04,0x00,0x00,0x00}}, /* ChannelCount */
285
    { 0x3D01, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x04,0x04,0x02,0x03,0x03,0x04,0x00,0x00,0x00}}, /* Quantization bits */
286
    { 0x3D06, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x04,0x02,0x04,0x02,0x00,0x00,0x00,0x00}}, /* Sound Essence Compression */
287
    // Index Table Segment
288
    { 0x3F0B, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x05,0x05,0x30,0x04,0x06,0x00,0x00,0x00,0x00}}, /* Index Edit Rate */
289
    { 0x3F0C, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x05,0x07,0x02,0x01,0x03,0x01,0x0A,0x00,0x00}}, /* Index Start Position */
290
    { 0x3F0D, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x05,0x07,0x02,0x02,0x01,0x01,0x02,0x00,0x00}}, /* Index Duration */
291
    { 0x3F05, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x04,0x04,0x06,0x02,0x01,0x00,0x00,0x00,0x00}}, /* Edit Unit Byte Count */
292
    { 0x3F06, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x04,0x01,0x03,0x04,0x05,0x00,0x00,0x00,0x00}}, /* IndexSID */
293
    { 0x3F08, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x04,0x04,0x04,0x04,0x01,0x01,0x00,0x00,0x00}}, /* Slice Count */
294
    { 0x3F09, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x05,0x04,0x04,0x04,0x01,0x06,0x00,0x00,0x00}}, /* Delta Entry Array */
295
    { 0x3F0A, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x05,0x04,0x04,0x04,0x02,0x05,0x00,0x00,0x00}}, /* Index Entry Array */
296
    // MPEG video Descriptor
297
    { 0x8000, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x05,0x04,0x01,0x06,0x02,0x01,0x0B,0x00,0x00}}, /* BitRate */
298
    // Wave Audio Essence Descriptor
299
    { 0x3D09, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x05,0x04,0x02,0x03,0x03,0x05,0x00,0x00,0x00}}, /* Average Bytes Per Second */
300
    { 0x3D0A, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x05,0x04,0x02,0x03,0x02,0x01,0x00,0x00,0x00}}, /* Block Align */
301
};
302

    
303
static void mxf_write_uuid(ByteIOContext *pb, enum MXFMetadataSetType type, int value)
304
{
305
    put_buffer(pb, uuid_base, 12);
306
    put_be16(pb, type);
307
    put_be16(pb, value);
308
}
309

    
310
static void mxf_write_umid(ByteIOContext *pb, enum MXFMetadataSetType type, int value)
311
{
312
    put_buffer(pb, umid_base, 16);
313
    mxf_write_uuid(pb, type, value);
314
}
315

    
316
static void mxf_write_refs_count(ByteIOContext *pb, int ref_count)
317
{
318
    put_be32(pb, ref_count);
319
    put_be32(pb, 16);
320
}
321

    
322
static int klv_ber_length(uint64_t len)
323
{
324
    if (len < 128)
325
        return 1;
326
    else
327
        return (av_log2(len) >> 3) + 2;
328
}
329

    
330
static int klv_encode_ber_length(ByteIOContext *pb, uint64_t len)
331
{
332
    // Determine the best BER size
333
    int size;
334
    if (len < 128) {
335
        //short form
336
        put_byte(pb, len);
337
        return 1;
338
    }
339

    
340
    size = (av_log2(len) >> 3) + 1;
341

    
342
    // long form
343
    put_byte(pb, 0x80 + size);
344
    while(size) {
345
        size--;
346
        put_byte(pb, len >> 8 * size & 0xff);
347
    }
348
    return 0;
349
}
350

    
351
static void klv_encode_ber4_length(ByteIOContext *pb, int len)
352
{
353
    put_byte(pb, 0x80 + 3);
354
    put_be24(pb, len);
355
}
356

    
357
/*
358
 * Get essence container ul index
359
 */
360
static int mxf_get_essence_container_ul_index(enum CodecID id)
361
{
362
    int i;
363
    for (i = 0; mxf_essence_mappings[i].id; i++)
364
        if (mxf_essence_mappings[i].id == id)
365
            return mxf_essence_mappings[i].index;
366
    return -1;
367
}
368

    
369
static void mxf_write_primer_pack(AVFormatContext *s)
370
{
371
    ByteIOContext *pb = s->pb;
372
    int local_tag_number, i = 0;
373

    
374
    local_tag_number = FF_ARRAY_ELEMS(mxf_local_tag_batch);
375

    
376
    put_buffer(pb, primer_pack_key, 16);
377
    klv_encode_ber_length(pb, local_tag_number * 18 + 8);
378

    
379
    put_be32(pb, local_tag_number); // local_tag num
380
    put_be32(pb, 18); // item size, always 18 according to the specs
381

    
382
    for (i = 0; i < local_tag_number; i++) {
383
        put_be16(pb, mxf_local_tag_batch[i].local_tag);
384
        put_buffer(pb, mxf_local_tag_batch[i].uid, 16);
385
    }
386
}
387

    
388
static void mxf_write_local_tag(ByteIOContext *pb, int size, int tag)
389
{
390
    put_be16(pb, tag);
391
    put_be16(pb, size);
392
}
393

    
394
static void mxf_write_metadata_key(ByteIOContext *pb, unsigned int value)
395
{
396
    put_buffer(pb, header_metadata_key, 13);
397
    put_be24(pb, value);
398
}
399

    
400
static void mxf_free(AVFormatContext *s)
401
{
402
    int i;
403

    
404
    for (i = 0; i < s->nb_streams; i++) {
405
        AVStream *st = s->streams[i];
406
        av_freep(&st->priv_data);
407
    }
408
}
409

    
410
static const MXFCodecUL *mxf_get_data_definition_ul(int type)
411
{
412
    const MXFCodecUL *uls = ff_mxf_data_definition_uls;
413
    while (uls->uid[0]) {
414
        if (type == uls->id)
415
            break;
416
        uls++;
417
    }
418
    return uls;
419
}
420

    
421
static void mxf_write_essence_container_refs(AVFormatContext *s)
422
{
423
    MXFContext *c = s->priv_data;
424
    ByteIOContext *pb = s->pb;
425
    int i;
426

    
427
    mxf_write_refs_count(pb, c->essence_container_count);
428
    av_log(s,AV_LOG_DEBUG, "essence container count:%d\n", c->essence_container_count);
429
    for (i = 0; i < c->essence_container_count; i++) {
430
        MXFStreamContext *sc = s->streams[i]->priv_data;
431
        put_buffer(pb, mxf_essence_container_uls[sc->index].container_ul, 16);
432
    }
433
}
434

    
435
static void mxf_write_preface(AVFormatContext *s)
436
{
437
    MXFContext *mxf = s->priv_data;
438
    ByteIOContext *pb = s->pb;
439

    
440
    mxf_write_metadata_key(pb, 0x012f00);
441
    PRINT_KEY(s, "preface key", pb->buf_ptr - 16);
442
    klv_encode_ber_length(pb, 130 + 16 * mxf->essence_container_count);
443

    
444
    // write preface set uid
445
    mxf_write_local_tag(pb, 16, 0x3C0A);
446
    mxf_write_uuid(pb, Preface, 0);
447
    PRINT_KEY(s, "preface uid", pb->buf_ptr - 16);
448

    
449
    // last modified date
450
    mxf_write_local_tag(pb, 8, 0x3B02);
451
    put_be64(pb, mxf->timestamp);
452

    
453
    // write version
454
    mxf_write_local_tag(pb, 2, 0x3B05);
455
    put_be16(pb, 1);
456

    
457
    // write identification_refs
458
    mxf_write_local_tag(pb, 16 + 8, 0x3B06);
459
    mxf_write_refs_count(pb, 1);
460
    mxf_write_uuid(pb, Identification, 0);
461

    
462
    // write content_storage_refs
463
    mxf_write_local_tag(pb, 16, 0x3B03);
464
    mxf_write_uuid(pb, ContentStorage, 0);
465

    
466
    // operational pattern
467
    mxf_write_local_tag(pb, 16, 0x3B09);
468
    if (s->nb_streams > 1) {
469
        put_buffer(pb, op1a_ul, 14);
470
        put_be16(pb, 0x0900); // multi track
471
    } else {
472
        put_buffer(pb, op1a_ul, 16);
473
    }
474

    
475
    // write essence_container_refs
476
    mxf_write_local_tag(pb, 8 + 16 * mxf->essence_container_count, 0x3B0A);
477
    mxf_write_essence_container_refs(s);
478

    
479
    // write dm_scheme_refs
480
    mxf_write_local_tag(pb, 8, 0x3B0B);
481
    put_be64(pb, 0);
482
}
483

    
484
/*
485
 * Write a local tag containing an ascii string as utf-16
486
 */
487
static void mxf_write_local_tag_utf16(ByteIOContext *pb, int tag, const char *value)
488
{
489
    int i, size = strlen(value);
490
    mxf_write_local_tag(pb, size*2, tag);
491
    for (i = 0; i < size; i++)
492
        put_be16(pb, value[i]);
493
}
494

    
495
static void mxf_write_identification(AVFormatContext *s)
496
{
497
    MXFContext *mxf = s->priv_data;
498
    ByteIOContext *pb = s->pb;
499
    const char *company = "FFmpeg";
500
    const char *product = "OP1a Muxer";
501
    const char *version;
502
    int length;
503

    
504
    mxf_write_metadata_key(pb, 0x013000);
505
    PRINT_KEY(s, "identification key", pb->buf_ptr - 16);
506

    
507
    version = s->streams[0]->codec->flags & CODEC_FLAG_BITEXACT ?
508
        "0.0.0" : AV_STRINGIFY(LIBAVFORMAT_VERSION);
509
    length = 84 + (strlen(company)+strlen(product)+strlen(version))*2; // utf-16
510
    klv_encode_ber_length(pb, length);
511

    
512
    // write uid
513
    mxf_write_local_tag(pb, 16, 0x3C0A);
514
    mxf_write_uuid(pb, Identification, 0);
515
    PRINT_KEY(s, "identification uid", pb->buf_ptr - 16);
516

    
517
    // write generation uid
518
    mxf_write_local_tag(pb, 16, 0x3C09);
519
    mxf_write_uuid(pb, Identification, 1);
520

    
521
    mxf_write_local_tag_utf16(pb, 0x3C01, company); // Company Name
522
    mxf_write_local_tag_utf16(pb, 0x3C02, product); // Product Name
523
    mxf_write_local_tag_utf16(pb, 0x3C04, version); // Version String
524

    
525
    // write product uid
526
    mxf_write_local_tag(pb, 16, 0x3C05);
527
    mxf_write_uuid(pb, Identification, 2);
528

    
529
    // modification date
530
    mxf_write_local_tag(pb, 8, 0x3C06);
531
    put_be64(pb, mxf->timestamp);
532
}
533

    
534
static void mxf_write_content_storage(AVFormatContext *s)
535
{
536
    ByteIOContext *pb = s->pb;
537

    
538
    mxf_write_metadata_key(pb, 0x011800);
539
    PRINT_KEY(s, "content storage key", pb->buf_ptr - 16);
540
    klv_encode_ber_length(pb, 92);
541

    
542
    // write uid
543
    mxf_write_local_tag(pb, 16, 0x3C0A);
544
    mxf_write_uuid(pb, ContentStorage, 0);
545
    PRINT_KEY(s, "content storage uid", pb->buf_ptr - 16);
546

    
547
    // write package reference
548
    mxf_write_local_tag(pb, 16 * 2 + 8, 0x1901);
549
    mxf_write_refs_count(pb, 2);
550
    mxf_write_uuid(pb, MaterialPackage, 0);
551
    mxf_write_uuid(pb, SourcePackage, 0);
552

    
553
    // write essence container data
554
    mxf_write_local_tag(pb, 8 + 16, 0x1902);
555
    mxf_write_refs_count(pb, 1);
556
    mxf_write_uuid(pb, EssenceContainerData, 0);
557
}
558

    
559
static void mxf_write_track(AVFormatContext *s, AVStream *st, enum MXFMetadataSetType type)
560
{
561
    MXFContext *mxf = s->priv_data;
562
    ByteIOContext *pb = s->pb;
563
    MXFStreamContext *sc = st->priv_data;
564

    
565
    mxf_write_metadata_key(pb, 0x013b00);
566
    PRINT_KEY(s, "track key", pb->buf_ptr - 16);
567
    klv_encode_ber_length(pb, 80);
568

    
569
    // write track uid
570
    mxf_write_local_tag(pb, 16, 0x3C0A);
571
    mxf_write_uuid(pb, type == MaterialPackage ? Track : Track + TypeBottom, st->index);
572
    PRINT_KEY(s, "track uid", pb->buf_ptr - 16);
573

    
574
    // write track id
575
    mxf_write_local_tag(pb, 4, 0x4801);
576
    put_be32(pb, st->index);
577

    
578
    // write track number
579
    mxf_write_local_tag(pb, 4, 0x4804);
580
    if (type == MaterialPackage)
581
        put_be32(pb, 0); // track number of material package is 0
582
    else
583
        put_buffer(pb, sc->track_essence_element_key + 12, 4);
584

    
585
    mxf_write_local_tag(pb, 8, 0x4B01);
586
    put_be32(pb, mxf->time_base.den);
587
    put_be32(pb, mxf->time_base.num);
588

    
589
    // write origin
590
    mxf_write_local_tag(pb, 8, 0x4B02);
591
    put_be64(pb, 0);
592

    
593
    // write sequence refs
594
    mxf_write_local_tag(pb, 16, 0x4803);
595
    mxf_write_uuid(pb, type == MaterialPackage ? Sequence: Sequence + TypeBottom, st->index);
596
}
597

    
598
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 };
599

    
600
static void mxf_write_common_fields(AVFormatContext *s, AVStream *st)
601
{
602
    MXFContext *mxf = s->priv_data;
603
    ByteIOContext *pb = s->pb;
604

    
605
    // find data define uls
606
    mxf_write_local_tag(pb, 16, 0x0201);
607
    if (st == mxf->timecode_track)
608
        put_buffer(pb, smpte_12m_timecode_track_data_ul, 16);
609
    else {
610
        const MXFCodecUL *data_def_ul = mxf_get_data_definition_ul(st->codec->codec_type);
611
        put_buffer(pb, data_def_ul->uid, 16);
612
    }
613

    
614
    // write duration
615
    mxf_write_local_tag(pb, 8, 0x0202);
616
    put_be64(pb, mxf->duration);
617
}
618

    
619
static void mxf_write_sequence(AVFormatContext *s, AVStream *st, enum MXFMetadataSetType type)
620
{
621
    MXFContext *mxf = s->priv_data;
622
    ByteIOContext *pb = s->pb;
623
    enum MXFMetadataSetType component;
624

    
625
    mxf_write_metadata_key(pb, 0x010f00);
626
    PRINT_KEY(s, "sequence key", pb->buf_ptr - 16);
627
    klv_encode_ber_length(pb, 80);
628

    
629
    mxf_write_local_tag(pb, 16, 0x3C0A);
630
    mxf_write_uuid(pb, type == MaterialPackage ? Sequence: Sequence + TypeBottom, st->index);
631

    
632
    PRINT_KEY(s, "sequence uid", pb->buf_ptr - 16);
633
    mxf_write_common_fields(s, st);
634

    
635
    // write structural component
636
    mxf_write_local_tag(pb, 16 + 8, 0x1001);
637
    mxf_write_refs_count(pb, 1);
638
    if (st == mxf->timecode_track)
639
        component = TimecodeComponent;
640
    else if (type == MaterialPackage)
641
        component = SourceClip;
642
    else
643
        component = SourceClip+TypeBottom;
644
    mxf_write_uuid(pb, component, st->index);
645
}
646

    
647
static void mxf_write_timecode_component(AVFormatContext *s, AVStream *st)
648
{
649
    MXFContext *mxf = s->priv_data;
650
    ByteIOContext *pb = s->pb;
651

    
652
    mxf_write_metadata_key(pb, 0x011400);
653
    klv_encode_ber_length(pb, 75);
654

    
655
    // UID
656
    mxf_write_local_tag(pb, 16, 0x3C0A);
657
    mxf_write_uuid(pb, TimecodeComponent, st->index);
658

    
659
    mxf_write_common_fields(s, st);
660

    
661
    // Start Time Code
662
    mxf_write_local_tag(pb, 8, 0x1501);
663
    put_be64(pb, mxf->timecode_start);
664

    
665
    // Rounded Time Code Base
666
    mxf_write_local_tag(pb, 2, 0x1502);
667
    put_be16(pb, mxf->timecode_base);
668

    
669
    // Drop Frame
670
    mxf_write_local_tag(pb, 1, 0x1503);
671
    put_byte(pb, mxf->timecode_drop_frame);
672
}
673

    
674
static void mxf_write_structural_component(AVFormatContext *s, AVStream *st, enum MXFMetadataSetType type)
675
{
676
    ByteIOContext *pb = s->pb;
677
    int i;
678

    
679
    mxf_write_metadata_key(pb, 0x011100);
680
    PRINT_KEY(s, "sturctural component key", pb->buf_ptr - 16);
681
    klv_encode_ber_length(pb, 108);
682

    
683
    // write uid
684
    mxf_write_local_tag(pb, 16, 0x3C0A);
685
    mxf_write_uuid(pb, type == MaterialPackage ? SourceClip: SourceClip + TypeBottom, st->index);
686

    
687
    PRINT_KEY(s, "structural component uid", pb->buf_ptr - 16);
688
    mxf_write_common_fields(s, st);
689

    
690
    // write start_position
691
    mxf_write_local_tag(pb, 8, 0x1201);
692
    put_be64(pb, 0);
693

    
694
    // write source package uid, end of the reference
695
    mxf_write_local_tag(pb, 32, 0x1101);
696
    if (type == SourcePackage) {
697
        for (i = 0; i < 4; i++)
698
            put_be64(pb, 0);
699
    } else
700
        mxf_write_umid(pb, SourcePackage, 0);
701

    
702
    // write source track id
703
    mxf_write_local_tag(pb, 4, 0x1102);
704
    if (type == SourcePackage)
705
        put_be32(pb, 0);
706
    else
707
        put_be32(pb, st->index);
708
}
709

    
710
static void mxf_write_multi_descriptor(AVFormatContext *s)
711
{
712
    MXFContext *mxf = s->priv_data;
713
    ByteIOContext *pb = s->pb;
714
    const uint8_t *ul;
715
    int i;
716

    
717
    mxf_write_metadata_key(pb, 0x014400);
718
    PRINT_KEY(s, "multiple descriptor key", pb->buf_ptr - 16);
719
    klv_encode_ber_length(pb, 64 + 16 * s->nb_streams);
720

    
721
    mxf_write_local_tag(pb, 16, 0x3C0A);
722
    mxf_write_uuid(pb, MultipleDescriptor, 0);
723
    PRINT_KEY(s, "multi_desc uid", pb->buf_ptr - 16);
724

    
725
    // write sample rate
726
    mxf_write_local_tag(pb, 8, 0x3001);
727
    put_be32(pb, mxf->time_base.den);
728
    put_be32(pb, mxf->time_base.num);
729

    
730
    // write essence container ul
731
    mxf_write_local_tag(pb, 16, 0x3004);
732
    if (mxf->essence_container_count > 1)
733
        ul = multiple_desc_ul;
734
    else {
735
        MXFStreamContext *sc = s->streams[0]->priv_data;
736
        ul = mxf_essence_container_uls[sc->index].container_ul;
737
    }
738
    put_buffer(pb, ul, 16);
739

    
740
    // write sub descriptor refs
741
    mxf_write_local_tag(pb, s->nb_streams * 16 + 8, 0x3F01);
742
    mxf_write_refs_count(pb, s->nb_streams);
743
    for (i = 0; i < s->nb_streams; i++)
744
        mxf_write_uuid(pb, SubDescriptor, i);
745
}
746

    
747
static void mxf_write_generic_desc(AVFormatContext *s, AVStream *st, const UID key, unsigned size)
748
{
749
    MXFContext *mxf = s->priv_data;
750
    MXFStreamContext *sc = st->priv_data;
751
    ByteIOContext *pb = s->pb;
752

    
753
    put_buffer(pb, key, 16);
754
    klv_encode_ber_length(pb, size+20+8+12+20);
755

    
756
    mxf_write_local_tag(pb, 16, 0x3C0A);
757
    mxf_write_uuid(pb, SubDescriptor, st->index);
758

    
759
    mxf_write_local_tag(pb, 4, 0x3006);
760
    put_be32(pb, st->index);
761

    
762
    mxf_write_local_tag(pb, 8, 0x3001);
763
    put_be32(pb, mxf->time_base.den);
764
    put_be32(pb, mxf->time_base.num);
765

    
766
    mxf_write_local_tag(pb, 16, 0x3004);
767
    put_buffer(pb, mxf_essence_container_uls[sc->index].container_ul, 16);
768
}
769

    
770
static const UID mxf_mpegvideo_descriptor_key = { 0x06,0x0E,0x2B,0x34,0x02,0x53,0x01,0x01,0x0d,0x01,0x01,0x01,0x01,0x01,0x51,0x00 };
771
static const UID mxf_wav_descriptor_key       = { 0x06,0x0E,0x2B,0x34,0x02,0x53,0x01,0x01,0x0d,0x01,0x01,0x01,0x01,0x01,0x48,0x00 };
772
static const UID mxf_aes3_descriptor_key      = { 0x06,0x0E,0x2B,0x34,0x02,0x53,0x01,0x01,0x0d,0x01,0x01,0x01,0x01,0x01,0x47,0x00 };
773
static const UID mxf_cdci_descriptor_key      = { 0x06,0x0E,0x2B,0x34,0x02,0x53,0x01,0x01,0x0D,0x01,0x01,0x01,0x01,0x01,0x28,0x00 };
774
static const UID mxf_generic_sound_descriptor_key = { 0x06,0x0E,0x2B,0x34,0x02,0x53,0x01,0x01,0x0D,0x01,0x01,0x01,0x01,0x01,0x42,0x00 };
775

    
776
static void mxf_write_cdci_common(AVFormatContext *s, AVStream *st, const UID key, unsigned size)
777
{
778
    MXFStreamContext *sc = st->priv_data;
779
    ByteIOContext *pb = s->pb;
780
    int stored_height = (st->codec->height+15)/16*16;
781
    int display_height;
782
    int f1, f2;
783

    
784
    mxf_write_generic_desc(s, st, key, size+8+8+8+8+8+8+5+16+sc->interlaced*4+12+20);
785

    
786
    mxf_write_local_tag(pb, 4, 0x3203);
787
    put_be32(pb, st->codec->width);
788

    
789
    mxf_write_local_tag(pb, 4, 0x3202);
790
    put_be32(pb, stored_height>>sc->interlaced);
791

    
792
    mxf_write_local_tag(pb, 4, 0x3209);
793
    put_be32(pb, st->codec->width);
794

    
795
    if (st->codec->height == 608) // PAL + VBI
796
        display_height = 576;
797
    else if (st->codec->height == 512)  // NTSC + VBI
798
        display_height = 486;
799
    else
800
        display_height = st->codec->height;
801

    
802
    mxf_write_local_tag(pb, 4, 0x3208);
803
    put_be32(pb, display_height>>sc->interlaced);
804

    
805
    // component depth
806
    mxf_write_local_tag(pb, 4, 0x3301);
807
    put_be32(pb, 8);
808

    
809
    // horizontal subsampling
810
    mxf_write_local_tag(pb, 4, 0x3302);
811
    put_be32(pb, 2);
812

    
813
    // frame layout
814
    mxf_write_local_tag(pb, 1, 0x320C);
815
    put_byte(pb, sc->interlaced);
816

    
817
    // video line map
818
    switch (st->codec->height) {
819
    case  576: f1 = 23; f2 = 336; break;
820
    case  608: f1 =  7; f2 = 320; break;
821
    case  480: f1 = 20; f2 = 283; break;
822
    case  512: f1 =  7; f2 = 270; break;
823
    case  720: f1 = 26; f2 =   0; break; // progressive
824
    case 1080: f1 = 21; f2 = 584; break;
825
    default:   f1 =  0; f2 =   0; break;
826
    }
827

    
828
    if (!sc->interlaced) {
829
        f2  = 0;
830
        f1 *= 2;
831
    }
832

    
833
    mxf_write_local_tag(pb, 12+sc->interlaced*4, 0x320D);
834
    put_be32(pb, sc->interlaced ? 2 : 1);
835
    put_be32(pb, 4);
836
    put_be32(pb, f1);
837
    if (sc->interlaced)
838
        put_be32(pb, f2);
839

    
840
    mxf_write_local_tag(pb, 8, 0x320E);
841
    put_be32(pb, sc->aspect_ratio.num);
842
    put_be32(pb, sc->aspect_ratio.den);
843

    
844
    mxf_write_local_tag(pb, 16, 0x3201);
845
    put_buffer(pb, *sc->codec_ul, 16);
846
}
847

    
848
static void mxf_write_cdci_desc(AVFormatContext *s, AVStream *st)
849
{
850
    mxf_write_cdci_common(s, st, mxf_cdci_descriptor_key, 0);
851
}
852

    
853
static void mxf_write_mpegvideo_desc(AVFormatContext *s, AVStream *st)
854
{
855
    ByteIOContext *pb = s->pb;
856

    
857
    mxf_write_cdci_common(s, st, mxf_mpegvideo_descriptor_key, 8);
858

    
859
    // bit rate
860
    mxf_write_local_tag(pb, 4, 0x8000);
861
    put_be32(pb, st->codec->bit_rate);
862
}
863

    
864
static void mxf_write_generic_sound_common(AVFormatContext *s, AVStream *st, const UID key, unsigned size)
865
{
866
    ByteIOContext *pb = s->pb;
867

    
868
    mxf_write_generic_desc(s, st, key, size+5+12+8+8);
869

    
870
    // audio locked
871
    mxf_write_local_tag(pb, 1, 0x3D02);
872
    put_byte(pb, 1);
873

    
874
    // write audio sampling rate
875
    mxf_write_local_tag(pb, 8, 0x3D03);
876
    put_be32(pb, st->codec->sample_rate);
877
    put_be32(pb, 1);
878

    
879
    mxf_write_local_tag(pb, 4, 0x3D07);
880
    put_be32(pb, st->codec->channels);
881

    
882
    mxf_write_local_tag(pb, 4, 0x3D01);
883
    put_be32(pb, av_get_bits_per_sample(st->codec->codec_id));
884
}
885

    
886
static void mxf_write_wav_common(AVFormatContext *s, AVStream *st, const UID key, unsigned size)
887
{
888
    ByteIOContext *pb = s->pb;
889

    
890
    mxf_write_generic_sound_common(s, st, key, size+6+8);
891

    
892
    mxf_write_local_tag(pb, 2, 0x3D0A);
893
    put_be16(pb, st->codec->block_align);
894

    
895
    // avg bytes per sec
896
    mxf_write_local_tag(pb, 4, 0x3D09);
897
    put_be32(pb, st->codec->block_align*st->codec->sample_rate);
898
}
899

    
900
static void mxf_write_wav_desc(AVFormatContext *s, AVStream *st)
901
{
902
    mxf_write_wav_common(s, st, mxf_wav_descriptor_key, 0);
903
}
904

    
905
static void mxf_write_aes3_desc(AVFormatContext *s, AVStream *st)
906
{
907
    mxf_write_wav_common(s, st, mxf_aes3_descriptor_key, 0);
908
}
909

    
910
static void mxf_write_generic_sound_desc(AVFormatContext *s, AVStream *st)
911
{
912
    mxf_write_generic_sound_common(s, st, mxf_generic_sound_descriptor_key, 0);
913
}
914

    
915
static void mxf_write_package(AVFormatContext *s, enum MXFMetadataSetType type)
916
{
917
    MXFContext *mxf = s->priv_data;
918
    ByteIOContext *pb = s->pb;
919
    int i, track_count;
920

    
921
    if (type == MaterialPackage) {
922
        track_count = s->nb_streams + 1; // add timecode track
923
        mxf_write_metadata_key(pb, 0x013600);
924
        PRINT_KEY(s, "Material Package key", pb->buf_ptr - 16);
925
        klv_encode_ber_length(pb, 92 + 16*track_count);
926
    } else {
927
        track_count = s->nb_streams;
928
        mxf_write_metadata_key(pb, 0x013700);
929
        PRINT_KEY(s, "Source Package key", pb->buf_ptr - 16);
930
        klv_encode_ber_length(pb, 112 + 16*track_count); // 20 bytes length for descriptor reference
931
    }
932

    
933
    // write uid
934
    mxf_write_local_tag(pb, 16, 0x3C0A);
935
    mxf_write_uuid(pb, type, 0);
936
    av_log(s,AV_LOG_DEBUG, "package type:%d\n", type);
937
    PRINT_KEY(s, "package uid", pb->buf_ptr - 16);
938

    
939
    // write package umid
940
    mxf_write_local_tag(pb, 32, 0x4401);
941
    mxf_write_umid(pb, type, 0);
942
    PRINT_KEY(s, "package umid second part", pb->buf_ptr - 16);
943

    
944
    // package creation date
945
    mxf_write_local_tag(pb, 8, 0x4405);
946
    put_be64(pb, mxf->timestamp);
947

    
948
    // package modified date
949
    mxf_write_local_tag(pb, 8, 0x4404);
950
    put_be64(pb, mxf->timestamp);
951

    
952
    // write track refs
953
    mxf_write_local_tag(pb, track_count*16 + 8, 0x4403);
954
    mxf_write_refs_count(pb, track_count);
955
    for (i = 0; i < s->nb_streams; i++)
956
        mxf_write_uuid(pb, type == MaterialPackage ? Track : Track + TypeBottom, i);
957
    if (type == MaterialPackage)
958
        mxf_write_uuid(pb, Track, s->nb_streams); // timecode track
959

    
960
    // write multiple descriptor reference
961
    if (type == SourcePackage) {
962
        mxf_write_local_tag(pb, 16, 0x4701);
963
        if (s->nb_streams > 1) {
964
            mxf_write_uuid(pb, MultipleDescriptor, 0);
965
            mxf_write_multi_descriptor(s);
966
        } else
967
            mxf_write_uuid(pb, SubDescriptor, 0);
968
    } else {
969
        // write timecode track
970
        mxf_write_track(s, mxf->timecode_track, type);
971
        mxf_write_sequence(s, mxf->timecode_track, type);
972
        mxf_write_timecode_component(s, mxf->timecode_track);
973
    }
974

    
975
    for (i = 0; i < s->nb_streams; i++) {
976
        AVStream *st = s->streams[i];
977
        mxf_write_track(s, st, type);
978
        mxf_write_sequence(s, st, type);
979
        mxf_write_structural_component(s, st, type);
980

    
981
        if (type == SourcePackage) {
982
            MXFStreamContext *sc = st->priv_data;
983
            mxf_essence_container_uls[sc->index].write_desc(s, st);
984
        }
985
    }
986
}
987

    
988
static int mxf_write_essence_container_data(AVFormatContext *s)
989
{
990
    ByteIOContext *pb = s->pb;
991

    
992
    mxf_write_metadata_key(pb, 0x012300);
993
    klv_encode_ber_length(pb, 72);
994

    
995
    mxf_write_local_tag(pb, 16, 0x3C0A); // Instance UID
996
    mxf_write_uuid(pb, EssenceContainerData, 0);
997

    
998
    mxf_write_local_tag(pb, 32, 0x2701); // Linked Package UID
999
    mxf_write_umid(pb, SourcePackage, 0);
1000

    
1001
    mxf_write_local_tag(pb, 4, 0x3F07); // BodySID
1002
    put_be32(pb, 1);
1003

    
1004
    mxf_write_local_tag(pb, 4, 0x3F06); // IndexSID
1005
    put_be32(pb, 2);
1006

    
1007
    return 0;
1008
}
1009

    
1010
static int mxf_write_header_metadata_sets(AVFormatContext *s)
1011
{
1012
    mxf_write_preface(s);
1013
    mxf_write_identification(s);
1014
    mxf_write_content_storage(s);
1015
    mxf_write_package(s, MaterialPackage);
1016
    mxf_write_package(s, SourcePackage);
1017
    mxf_write_essence_container_data(s);
1018
    return 0;
1019
}
1020

    
1021
static unsigned klv_fill_size(uint64_t size)
1022
{
1023
    unsigned pad = KAG_SIZE - (size & (KAG_SIZE-1));
1024
    if (pad < 20) // smallest fill item possible
1025
        return pad + KAG_SIZE;
1026
    else
1027
        return pad & (KAG_SIZE-1);
1028
}
1029

    
1030
static void mxf_write_index_table_segment(AVFormatContext *s)
1031
{
1032
    MXFContext *mxf = s->priv_data;
1033
    ByteIOContext *pb = s->pb;
1034
    int i, j;
1035
    int temporal_reordering = 0;
1036
    int key_index = mxf->last_key_index;
1037

    
1038
    av_log(s, AV_LOG_DEBUG, "edit units count %d\n", mxf->edit_units_count);
1039

    
1040
    if (!mxf->edit_units_count && !mxf->edit_unit_byte_count)
1041
        return;
1042

    
1043
    put_buffer(pb, index_table_segment_key, 16);
1044

    
1045
    if (mxf->edit_unit_byte_count) {
1046
        klv_encode_ber_length(pb, 85);
1047
    } else {
1048
        klv_encode_ber_length(pb, 85 + 12+(s->nb_streams+1)*6 +
1049
                              12+mxf->edit_units_count*(11+mxf->slice_count*4));
1050
    }
1051

    
1052
    // instance id
1053
    mxf_write_local_tag(pb, 16, 0x3C0A);
1054
    mxf_write_uuid(pb, IndexTableSegment, 0);
1055

    
1056
    // index edit rate
1057
    mxf_write_local_tag(pb, 8, 0x3F0B);
1058
    put_be32(pb, mxf->time_base.num);
1059
    put_be32(pb, mxf->time_base.den);
1060

    
1061
    // index start position
1062
    mxf_write_local_tag(pb, 8, 0x3F0C);
1063
    put_be64(pb, mxf->last_indexed_edit_unit);
1064

    
1065
    // index duration
1066
    mxf_write_local_tag(pb, 8, 0x3F0D);
1067
    put_be64(pb, mxf->edit_units_count);
1068

    
1069
    // edit unit byte count
1070
    mxf_write_local_tag(pb, 4, 0x3F05);
1071
    put_be32(pb, mxf->edit_unit_byte_count);
1072

    
1073
    // index sid
1074
    mxf_write_local_tag(pb, 4, 0x3F06);
1075
    put_be32(pb, 2);
1076

    
1077
    // body sid
1078
    mxf_write_local_tag(pb, 4, 0x3F07);
1079
    put_be32(pb, 1);
1080

    
1081
    // real slice count - 1
1082
    mxf_write_local_tag(pb, 1, 0x3F08);
1083
    put_byte(pb, mxf->slice_count);
1084

    
1085
    if (!mxf->edit_unit_byte_count) {
1086
        // delta entry array
1087
        mxf_write_local_tag(pb, 8 + (s->nb_streams+1)*6, 0x3F09);
1088
        put_be32(pb, s->nb_streams+1); // num of entries
1089
        put_be32(pb, 6);               // size of one entry
1090
        // write system item delta entry
1091
        put_byte(pb, 0);
1092
        put_byte(pb, 0); // slice entry
1093
        put_be32(pb, 0); // element delta
1094
        for (i = 0; i < s->nb_streams; i++) {
1095
            AVStream *st = s->streams[i];
1096
            MXFStreamContext *sc = st->priv_data;
1097
            put_byte(pb, sc->temporal_reordering);
1098
            if (sc->temporal_reordering)
1099
                temporal_reordering = 1;
1100
            if (i == 0) { // video track
1101
                put_byte(pb, 0); // slice number
1102
                put_be32(pb, KAG_SIZE); // system item size including klv fill
1103
            } else { // audio track
1104
                unsigned audio_frame_size = sc->aic.samples[0]*sc->aic.sample_size;
1105
                audio_frame_size += klv_fill_size(audio_frame_size);
1106
                put_byte(pb, 1);
1107
                put_be32(pb, (i-1)*audio_frame_size); // element delta
1108
            }
1109
        }
1110

    
1111
        mxf_write_local_tag(pb, 8 + mxf->edit_units_count*(11+mxf->slice_count*4), 0x3F0A);
1112
        put_be32(pb, mxf->edit_units_count);  // num of entries
1113
        put_be32(pb, 11+mxf->slice_count*4);  // size of one entry
1114
        for (i = 0; i < mxf->edit_units_count; i++) {
1115
            if (temporal_reordering) {
1116
                int temporal_offset = 0;
1117
                for (j = i+1; j < mxf->edit_units_count; j++) {
1118
                    temporal_offset++;
1119
                    if (mxf->index_entries[j].flags & 0x10) { // backward prediction
1120
                        // next is not b, so is reordered
1121
                        if (!(mxf->index_entries[i+1].flags & 0x10)) {
1122
                            if ((mxf->index_entries[i].flags & 0x11) == 0) // i frame
1123
                                temporal_offset = 0;
1124
                            else
1125
                                temporal_offset = -temporal_offset;
1126
                        }
1127
                        break;
1128
                    }
1129
                }
1130
                put_byte(pb, temporal_offset);
1131
            } else
1132
                put_byte(pb, 0);
1133
            if (!(mxf->index_entries[i].flags & 0x33)) { // I frame
1134
                mxf->last_key_index = key_index;
1135
                key_index = i;
1136
            }
1137
            if (mxf->index_entries[i].flags & 0x10 && // backward prediction
1138
                !(mxf->index_entries[key_index].flags & 0x80)) { // open gop
1139
                put_byte(pb, mxf->last_key_index - i);
1140
            } else {
1141
                put_byte(pb, key_index - i); // key frame offset
1142
                if ((mxf->index_entries[i].flags & 0x20) == 0x20) // only forward
1143
                    mxf->last_key_index = key_index;
1144
            }
1145
            put_byte(pb, mxf->index_entries[i].flags);
1146
            // stream offset
1147
            put_be64(pb, mxf->index_entries[i].offset);
1148
            if (s->nb_streams > 1)
1149
                put_be32(pb, mxf->index_entries[i].slice_offset);
1150
        }
1151

    
1152
        mxf->last_key_index = key_index - mxf->edit_units_count;
1153
        mxf->last_indexed_edit_unit += mxf->edit_units_count;
1154
        mxf->edit_units_count = 0;
1155
    }
1156
}
1157

    
1158
static void mxf_write_klv_fill(AVFormatContext *s)
1159
{
1160
    unsigned pad = klv_fill_size(url_ftell(s->pb));
1161
    if (pad) {
1162
        put_buffer(s->pb, klv_fill_key, 16);
1163
        pad -= 16 + 4;
1164
        klv_encode_ber4_length(s->pb, pad);
1165
        for (; pad; pad--)
1166
            put_byte(s->pb, 0);
1167
        assert(!(url_ftell(s->pb) & (KAG_SIZE-1)));
1168
    }
1169
}
1170

    
1171
static void mxf_write_partition(AVFormatContext *s, int bodysid,
1172
                                int indexsid,
1173
                                const uint8_t *key, int write_metadata)
1174
{
1175
    MXFContext *mxf = s->priv_data;
1176
    ByteIOContext *pb = s->pb;
1177
    int64_t header_byte_count_offset;
1178
    unsigned index_byte_count = 0;
1179
    uint64_t partition_offset = url_ftell(pb);
1180

    
1181
    if (!mxf->edit_unit_byte_count && mxf->edit_units_count)
1182
        index_byte_count = 85 + 12+(s->nb_streams+1)*6 +
1183
            12+mxf->edit_units_count*(11+mxf->slice_count*4);
1184
    else if (mxf->edit_unit_byte_count && indexsid)
1185
        index_byte_count = 85;
1186

    
1187
    if (index_byte_count) {
1188
        // add encoded ber length
1189
        index_byte_count += 16 + klv_ber_length(index_byte_count);
1190
        index_byte_count += klv_fill_size(index_byte_count);
1191
    }
1192

    
1193
    if (!memcmp(key, body_partition_key, 16)) {
1194
        mxf->body_partition_offset =
1195
            av_realloc(mxf->body_partition_offset,
1196
                       (mxf->body_partitions_count+1)*
1197
                       sizeof(*mxf->body_partition_offset));
1198
        mxf->body_partition_offset[mxf->body_partitions_count++] = partition_offset;
1199
    }
1200

    
1201
    // write klv
1202
    put_buffer(pb, key, 16);
1203
    klv_encode_ber_length(pb, 88 + 16 * mxf->essence_container_count);
1204

    
1205
    // write partition value
1206
    put_be16(pb, 1); // majorVersion
1207
    put_be16(pb, 2); // minorVersion
1208
    put_be32(pb, KAG_SIZE); // KAGSize
1209

    
1210
    put_be64(pb, partition_offset); // ThisPartition
1211

    
1212
    if (!memcmp(key, body_partition_key, 16) && mxf->body_partitions_count > 1)
1213
        put_be64(pb, mxf->body_partition_offset[mxf->body_partitions_count-2]); // PreviousPartition
1214
    else if (!memcmp(key, footer_partition_key, 16) && mxf->body_partitions_count)
1215
        put_be64(pb, mxf->body_partition_offset[mxf->body_partitions_count-1]); // PreviousPartition
1216
    else
1217
        put_be64(pb, 0);
1218

    
1219
    put_be64(pb, mxf->footer_partition_offset); // footerPartition
1220

    
1221
    // set offset
1222
    header_byte_count_offset = url_ftell(pb);
1223
    put_be64(pb, 0); // headerByteCount, update later
1224

    
1225
    // indexTable
1226
    put_be64(pb, index_byte_count); // indexByteCount
1227
    put_be32(pb, index_byte_count ? indexsid : 0); // indexSID
1228

    
1229
    // BodyOffset
1230
    if (bodysid && mxf->edit_units_count && mxf->body_partitions_count) {
1231
        put_be64(pb, mxf->body_offset);
1232
    } else
1233
        put_be64(pb, 0);
1234

    
1235
    put_be32(pb, bodysid); // bodySID
1236

    
1237
    // operational pattern
1238
    if (s->nb_streams > 1) {
1239
        put_buffer(pb, op1a_ul, 14);
1240
        put_be16(pb, 0x0900); // multi track
1241
    } else {
1242
        put_buffer(pb, op1a_ul, 16);
1243
    }
1244

    
1245
    // essence container
1246
    mxf_write_essence_container_refs(s);
1247

    
1248
    if (write_metadata) {
1249
        // mark the start of the headermetadata and calculate metadata size
1250
        int64_t pos, start;
1251
        unsigned header_byte_count;
1252

    
1253
        mxf_write_klv_fill(s);
1254
        start = url_ftell(s->pb);
1255
        mxf_write_primer_pack(s);
1256
        mxf_write_header_metadata_sets(s);
1257
        pos = url_ftell(s->pb);
1258
        header_byte_count = pos - start + klv_fill_size(pos);
1259

    
1260
        // update header_byte_count
1261
        url_fseek(pb, header_byte_count_offset, SEEK_SET);
1262
        put_be64(pb, header_byte_count);
1263
        url_fseek(pb, pos, SEEK_SET);
1264
    }
1265

    
1266
    put_flush_packet(pb);
1267
}
1268

    
1269
static const UID mxf_mpeg2_codec_uls[] = {
1270
    { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x03,0x04,0x01,0x02,0x02,0x01,0x01,0x10,0x00 }, // MP-ML I-Frame
1271
    { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x03,0x04,0x01,0x02,0x02,0x01,0x01,0x11,0x00 }, // MP-ML Long GOP
1272
    { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x03,0x04,0x01,0x02,0x02,0x01,0x02,0x02,0x00 }, // 422P-ML I-Frame
1273
    { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x03,0x04,0x01,0x02,0x02,0x01,0x02,0x03,0x00 }, // 422P-ML Long GOP
1274
    { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x03,0x04,0x01,0x02,0x02,0x01,0x03,0x02,0x00 }, // MP-HL I-Frame
1275
    { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x03,0x04,0x01,0x02,0x02,0x01,0x03,0x03,0x00 }, // MP-HL Long GOP
1276
    { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x03,0x04,0x01,0x02,0x02,0x01,0x04,0x02,0x00 }, // 422P-HL I-Frame
1277
    { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x03,0x04,0x01,0x02,0x02,0x01,0x04,0x03,0x00 }, // 422P-HL Long GOP
1278
};
1279

    
1280
static const UID *mxf_get_mpeg2_codec_ul(AVCodecContext *avctx)
1281
{
1282
    if (avctx->profile == 4) { // Main
1283
        if (avctx->level == 8) // Main
1284
            return avctx->gop_size ?
1285
                &mxf_mpeg2_codec_uls[1] :
1286
                &mxf_mpeg2_codec_uls[0];
1287
        else if (avctx->level == 4) // High
1288
            return avctx->gop_size ?
1289
                &mxf_mpeg2_codec_uls[5] :
1290
                &mxf_mpeg2_codec_uls[4];
1291
    } else if (avctx->profile == 0) { // 422
1292
        if (avctx->level == 5) // Main
1293
            return avctx->gop_size ?
1294
                &mxf_mpeg2_codec_uls[3] :
1295
                &mxf_mpeg2_codec_uls[2];
1296
        else if (avctx->level == 2) // High
1297
            return avctx->gop_size ?
1298
                &mxf_mpeg2_codec_uls[7] :
1299
                &mxf_mpeg2_codec_uls[6];
1300
    }
1301
    return NULL;
1302
}
1303

    
1304
static int mxf_parse_mpeg2_frame(AVFormatContext *s, AVStream *st, AVPacket *pkt, int *flags)
1305
{
1306
    MXFStreamContext *sc = st->priv_data;
1307
    MXFContext *mxf = s->priv_data;
1308
    uint32_t c = -1;
1309
    int i;
1310

    
1311
    *flags = 0;
1312

    
1313
    for(i = 0; i < pkt->size - 4; i++) {
1314
        c = (c<<8) + pkt->data[i];
1315
        if (c == 0x1B5) {
1316
            if (i + 2 < pkt->size && (pkt->data[i+1] & 0xf0) == 0x10) { // seq ext
1317
                st->codec->profile = pkt->data[i+1] & 0x07;
1318
                st->codec->level   = pkt->data[i+2] >> 4;
1319
            } else if (i + 5 < pkt->size && (pkt->data[i+1] & 0xf0) == 0x80) { // pict coding ext
1320
                sc->interlaced = !(pkt->data[i+5] & 0x80); // progressive frame
1321
                break;
1322
            }
1323
        } else if (c == 0x1b8) { // gop
1324
            if (i + 4 < pkt->size) {
1325
                if (pkt->data[i+4]>>6 & 0x01) // closed
1326
                    *flags |= 0x80; // random access
1327
                if (!mxf->header_written) {
1328
                    unsigned hours   =  (pkt->data[i+1]>>2) & 0x1f;
1329
                    unsigned minutes = ((pkt->data[i+1] & 0x03) << 4) | (pkt->data[i+2]>>4);
1330
                    unsigned seconds = ((pkt->data[i+2] & 0x07) << 3) | (pkt->data[i+3]>>5);
1331
                    unsigned frames  = ((pkt->data[i+3] & 0x1f) << 1) | (pkt->data[i+4]>>7);
1332
                    mxf->timecode_drop_frame = !!(pkt->data[i+1] & 0x80);
1333
                    mxf->timecode_start = (hours*3600 + minutes*60 + seconds) *
1334
                        mxf->timecode_base + frames;
1335
                    if (mxf->timecode_drop_frame) {
1336
                        unsigned tminutes = 60 * hours + minutes;
1337
                        mxf->timecode_start -= 2 * (tminutes - tminutes / 10);
1338
                    }
1339
                    av_log(s, AV_LOG_DEBUG, "frame %d %d:%d:%d%c%d\n", mxf->timecode_start,
1340
                           hours, minutes, seconds, mxf->timecode_drop_frame ? ';':':', frames);
1341
                }
1342
            }
1343
        } else if (c == 0x1b3) { // seq
1344
            *flags |= 0x40;
1345
            if (i + 4 < pkt->size) {
1346
                switch ((pkt->data[i+4]>>4) & 0xf) {
1347
                case 2:  sc->aspect_ratio = (AVRational){  4,  3}; break;
1348
                case 3:  sc->aspect_ratio = (AVRational){ 16,  9}; break;
1349
                case 4:  sc->aspect_ratio = (AVRational){221,100}; break;
1350
                default:
1351
                    av_reduce(&sc->aspect_ratio.num, &sc->aspect_ratio.den,
1352
                              st->codec->width, st->codec->height, 1024*1024);
1353
                }
1354
            }
1355
        } else if (c == 0x100) { // pic
1356
            int pict_type = (pkt->data[i+2]>>3) & 0x07;
1357
            if (pict_type == 2) { // P frame
1358
                *flags |= 0x22;
1359
                st->codec->gop_size = 1;
1360
            } else if (pict_type == 3) { // B frame
1361
                *flags |= 0x33;
1362
                sc->temporal_reordering = -1;
1363
            } else if (!pict_type) {
1364
                av_log(s, AV_LOG_ERROR, "error parsing mpeg2 frame\n");
1365
                return 0;
1366
            }
1367
        }
1368
    }
1369
    if (s->oformat != &mxf_d10_muxer)
1370
        sc->codec_ul = mxf_get_mpeg2_codec_ul(st->codec);
1371
    return !!sc->codec_ul;
1372
}
1373

    
1374
static uint64_t mxf_parse_timestamp(time_t timestamp)
1375
{
1376
    struct tm *time = localtime(&timestamp);
1377
    return (uint64_t)(time->tm_year+1900) << 48 |
1378
           (uint64_t)(time->tm_mon+1)     << 40 |
1379
           (uint64_t) time->tm_mday       << 32 |
1380
                      time->tm_hour       << 24 |
1381
                      time->tm_min        << 16 |
1382
                      time->tm_sec        << 8;
1383
}
1384

    
1385
static int mxf_write_header(AVFormatContext *s)
1386
{
1387
    MXFContext *mxf = s->priv_data;
1388
    int i;
1389
    uint8_t present[FF_ARRAY_ELEMS(mxf_essence_container_uls)] = {0};
1390
    const int *samples_per_frame = NULL;
1391

    
1392
    for (i = 0; i < s->nb_streams; i++) {
1393
        AVStream *st = s->streams[i];
1394
        MXFStreamContext *sc = av_mallocz(sizeof(*sc));
1395
        if (!sc)
1396
            return AVERROR(ENOMEM);
1397
        st->priv_data = sc;
1398

    
1399
        if (st->codec->codec_type == CODEC_TYPE_VIDEO) {
1400
            if (i != 0) {
1401
                av_log(s, AV_LOG_ERROR, "video stream must be first track\n");
1402
                return -1;
1403
            }
1404
            if (fabs(av_q2d(st->codec->time_base) - 1/25.0) < 0.0001) {
1405
                samples_per_frame = PAL_samples_per_frame;
1406
                mxf->time_base = (AVRational){ 1, 25 };
1407
                mxf->timecode_base = 25;
1408
            } else if (fabs(av_q2d(st->codec->time_base) - 1001/30000.0) < 0.0001) {
1409
                samples_per_frame = NTSC_samples_per_frame;
1410
                mxf->time_base = (AVRational){ 1001, 30000 };
1411
                mxf->timecode_base = 30;
1412
            } else {
1413
                av_log(s, AV_LOG_ERROR, "unsupported video frame rate\n");
1414
                return -1;
1415
            }
1416
            av_set_pts_info(st, 64, mxf->time_base.num, mxf->time_base.den);
1417
            if (s->oformat == &mxf_d10_muxer) {
1418
                if (st->codec->bit_rate == 50000000)
1419
                    if (mxf->time_base.den == 25) sc->index = 3;
1420
                    else                          sc->index = 5;
1421
                else if (st->codec->bit_rate == 40000000)
1422
                    if (mxf->time_base.den == 25) sc->index = 7;
1423
                    else                          sc->index = 9;
1424
                else if (st->codec->bit_rate == 30000000)
1425
                    if (mxf->time_base.den == 25) sc->index = 11;
1426
                    else                          sc->index = 13;
1427
                else {
1428
                    av_log(s, AV_LOG_ERROR, "error MXF D-10 only support 30/40/50 mbit/s\n");
1429
                    return -1;
1430
                }
1431

    
1432
                mxf->edit_unit_byte_count = KAG_SIZE; // system element
1433
                mxf->edit_unit_byte_count += 16 + 4 + (uint64_t)st->codec->bit_rate *
1434
                    mxf->time_base.num / (8*mxf->time_base.den);
1435
                mxf->edit_unit_byte_count += klv_fill_size(mxf->edit_unit_byte_count);
1436
                mxf->edit_unit_byte_count += 16 + 4 + 4 + samples_per_frame[0]*8*4;
1437
                mxf->edit_unit_byte_count += klv_fill_size(mxf->edit_unit_byte_count);
1438
            }
1439
        } else if (st->codec->codec_type == CODEC_TYPE_AUDIO) {
1440
            if (st->codec->sample_rate != 48000) {
1441
                av_log(s, AV_LOG_ERROR, "only 48khz is implemented\n");
1442
                return -1;
1443
            }
1444
            av_set_pts_info(st, 64, 1, st->codec->sample_rate);
1445
            if (s->oformat == &mxf_d10_muxer) {
1446
                if (st->index != 1) {
1447
                    av_log(s, AV_LOG_ERROR, "MXF D-10 only support one audio track\n");
1448
                    return -1;
1449
                }
1450
                if (st->codec->codec_id != CODEC_ID_PCM_S16LE &&
1451
                    st->codec->codec_id != CODEC_ID_PCM_S24LE) {
1452
                    av_log(s, AV_LOG_ERROR, "MXF D-10 only support 16 or 24 bits le audio\n");
1453
                }
1454
                sc->index = ((MXFStreamContext*)s->streams[0]->priv_data)->index + 1;
1455
            } else
1456
            mxf->slice_count = 1;
1457
        }
1458

    
1459
        if (!sc->index) {
1460
            sc->index = mxf_get_essence_container_ul_index(st->codec->codec_id);
1461
            if (sc->index == -1) {
1462
                av_log(s, AV_LOG_ERROR, "track %d: could not find essence container ul, "
1463
                       "codec not currently supported in container\n", i);
1464
                return -1;
1465
            }
1466
        }
1467

    
1468
        sc->codec_ul = &mxf_essence_container_uls[sc->index].codec_ul;
1469

    
1470
        if (!present[sc->index]) {
1471
            present[sc->index] = 1;
1472
            mxf->essence_container_count++;
1473
        } else
1474
            present[sc->index]++;
1475

    
1476
        memcpy(sc->track_essence_element_key, mxf_essence_container_uls[sc->index].element_ul, 15);
1477
        sc->track_essence_element_key[15] = present[sc->index];
1478
        PRINT_KEY(s, "track essence element key", sc->track_essence_element_key);
1479
    }
1480

    
1481
    if (s->oformat == &mxf_d10_muxer) {
1482
        mxf->essence_container_count = 1;
1483
    }
1484

    
1485
    for (i = 0; i < s->nb_streams; i++) {
1486
        MXFStreamContext *sc = s->streams[i]->priv_data;
1487
        // update element count
1488
        sc->track_essence_element_key[13] = present[sc->index];
1489
        sc->order = AV_RB32(sc->track_essence_element_key+12);
1490
    }
1491

    
1492
    mxf->timestamp = mxf_parse_timestamp(s->timestamp);
1493
    mxf->duration = -1;
1494

    
1495
    mxf->timecode_track = av_mallocz(sizeof(*mxf->timecode_track));
1496
    if (!mxf->timecode_track)
1497
        return AVERROR(ENOMEM);
1498
    mxf->timecode_track->priv_data = av_mallocz(sizeof(MXFStreamContext));
1499
    if (!mxf->timecode_track->priv_data)
1500
        return AVERROR(ENOMEM);
1501
    mxf->timecode_track->index = s->nb_streams;
1502

    
1503
    if (!samples_per_frame)
1504
        samples_per_frame = PAL_samples_per_frame;
1505

    
1506
    if (ff_audio_interleave_init(s, samples_per_frame, mxf->time_base) < 0)
1507
        return -1;
1508

    
1509
    return 0;
1510
}
1511

    
1512
static const uint8_t system_metadata_pack_key[]        = { 0x06,0x0E,0x2B,0x34,0x02,0x05,0x01,0x01,0x0D,0x01,0x03,0x01,0x04,0x01,0x01,0x00 };
1513
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 };
1514

    
1515
static uint32_t ff_framenum_to_12m_time_code(unsigned frame, int drop, int fps)
1516
{
1517
    return (0                                    << 31) | // color frame flag
1518
           (0                                    << 30) | // drop  frame flag
1519
           ( ((frame % fps) / 10)                << 28) | // tens  of frames
1520
           ( ((frame % fps) % 10)                << 24) | // units of frames
1521
           (0                                    << 23) | // field phase (NTSC), b0 (PAL)
1522
           ((((frame / fps) % 60) / 10)          << 20) | // tens  of seconds
1523
           ((((frame / fps) % 60) % 10)          << 16) | // units of seconds
1524
           (0                                    << 15) | // b0 (NTSC), b2 (PAL)
1525
           ((((frame / (fps * 60)) % 60) / 10)   << 12) | // tens  of minutes
1526
           ((((frame / (fps * 60)) % 60) % 10)   <<  8) | // units of minutes
1527
           (0                                    <<  7) | // b1
1528
           (0                                    <<  6) | // b2 (NSC), field phase (PAL)
1529
           ((((frame / (fps * 3600) % 24)) / 10) <<  4) | // tens  of hours
1530
           (  (frame / (fps * 3600) % 24)) % 10;          // units of hours
1531
}
1532

    
1533
static void mxf_write_system_item(AVFormatContext *s)
1534
{
1535
    MXFContext *mxf = s->priv_data;
1536
    ByteIOContext *pb = s->pb;
1537
    unsigned frame;
1538
    uint32_t time_code;
1539

    
1540
    frame = mxf->timecode_start + mxf->last_indexed_edit_unit + mxf->edit_units_count;
1541

    
1542
    // write system metadata pack
1543
    put_buffer(pb, system_metadata_pack_key, 16);
1544
    klv_encode_ber4_length(pb, 57);
1545
    put_byte(pb, 0x5c); // UL, user date/time stamp, picture and sound item present
1546
    put_byte(pb, 0x04); // content package rate
1547
    put_byte(pb, 0x00); // content package type
1548
    put_be16(pb, 0x00); // channel handle
1549
    put_be16(pb, frame); // continuity count
1550
    if (mxf->essence_container_count > 1)
1551
        put_buffer(pb, multiple_desc_ul, 16);
1552
    else {
1553
        MXFStreamContext *sc = s->streams[0]->priv_data;
1554
        put_buffer(pb, mxf_essence_container_uls[sc->index].container_ul, 16);
1555
    }
1556
    put_byte(pb, 0);
1557
    put_be64(pb, 0);
1558
    put_be64(pb, 0); // creation date/time stamp
1559

    
1560
    put_byte(pb, 0x81); // SMPTE 12M time code
1561
    time_code = ff_framenum_to_12m_time_code(frame, mxf->timecode_drop_frame, mxf->timecode_base);
1562
    put_be32(pb, time_code);
1563
    put_be32(pb, 0); // binary group data
1564
    put_be64(pb, 0);
1565

    
1566
    // write system metadata package set
1567
    put_buffer(pb, system_metadata_package_set_key, 16);
1568
    klv_encode_ber4_length(pb, 35);
1569
    put_byte(pb, 0x83); // UMID
1570
    put_be16(pb, 0x20);
1571
    mxf_write_umid(pb, SourcePackage, 0);
1572
}
1573

    
1574
static void mxf_write_d10_video_packet(AVFormatContext *s, AVStream *st, AVPacket *pkt)
1575
{
1576
    MXFContext *mxf = s->priv_data;
1577
    ByteIOContext *pb = s->pb;
1578
    int packet_size = (uint64_t)st->codec->bit_rate*mxf->time_base.num /
1579
        (8*mxf->time_base.den); // frame size
1580
    int pad;
1581

    
1582
    packet_size += 16 + 4;
1583
    packet_size += klv_fill_size(packet_size);
1584

    
1585
    klv_encode_ber4_length(pb, pkt->size);
1586
    put_buffer(pb, pkt->data, pkt->size);
1587

    
1588
    // ensure CBR muxing by padding to correct video frame size
1589
    pad = packet_size - pkt->size - 16 - 4;
1590
    if (pad > 20) {
1591
        put_buffer(s->pb, klv_fill_key, 16);
1592
        pad -= 16 + 4;
1593
        klv_encode_ber4_length(s->pb, pad);
1594
        for (; pad; pad--)
1595
            put_byte(s->pb, 0);
1596
        assert(!(url_ftell(s->pb) & (KAG_SIZE-1)));
1597
    } else {
1598
        av_log(s, AV_LOG_WARNING, "cannot fill d-10 video packet\n");
1599
        for (; pad > 0; pad--)
1600
            put_byte(s->pb, 0);
1601
    }
1602
}
1603

    
1604
static void mxf_write_d10_audio_packet(AVFormatContext *s, AVStream *st, AVPacket *pkt)
1605
{
1606
    MXFContext *mxf = s->priv_data;
1607
    ByteIOContext *pb = s->pb;
1608
    int frame_size = (pkt->size<<3) /
1609
        (st->codec->channels*av_get_bits_per_sample(st->codec->codec_id));
1610
    uint8_t *samples = pkt->data;
1611
    uint8_t *end = pkt->data + pkt->size;
1612
    int i;
1613

    
1614
    klv_encode_ber4_length(pb, 4 + frame_size*4*8);
1615

    
1616
    put_byte(pb, (frame_size == 1920 ? 0 : (mxf->edit_units_count-1) % 5 + 1));
1617
    put_le16(pb, frame_size);
1618
    put_byte(pb, (1<<st->codec->channels)-1);
1619

    
1620
    while (samples < end) {
1621
        for (i = 0; i < st->codec->channels; i++) {
1622
            uint32_t sample;
1623
            if (st->codec->codec_id == CODEC_ID_PCM_S24LE) {
1624
                sample = (AV_RL24(samples)<< 4)|((samples==pkt->data)<<3) | i;
1625
                samples += 3;
1626
            } else {
1627
                sample = (AV_RL16(samples)<<12)|((samples==pkt->data)<<3) | i;
1628
                samples += 2;
1629
            }
1630
            put_le32(pb, sample);
1631
        }
1632
        for (; i < 8; i++)
1633
            put_le32(pb, 0);
1634
    }
1635
}
1636

    
1637
static int mxf_write_packet(AVFormatContext *s, AVPacket *pkt)
1638
{
1639
    MXFContext *mxf = s->priv_data;
1640
    ByteIOContext *pb = s->pb;
1641
    AVStream *st = s->streams[pkt->stream_index];
1642
    MXFStreamContext *sc = st->priv_data;
1643
    int flags = 0;
1644

    
1645
    if (!mxf->edit_unit_byte_count && !(mxf->edit_units_count % EDIT_UNITS_PER_BODY)) {
1646
        mxf->index_entries = av_realloc(mxf->index_entries,
1647
            (mxf->edit_units_count + EDIT_UNITS_PER_BODY)*sizeof(*mxf->index_entries));
1648
        if (!mxf->index_entries) {
1649
            av_log(s, AV_LOG_ERROR, "could not allocate index entries\n");
1650
            return -1;
1651
        }
1652
    }
1653

    
1654
    if (st->codec->codec_id == CODEC_ID_MPEG2VIDEO) {
1655
        if (!mxf_parse_mpeg2_frame(s, st, pkt, &flags)) {
1656
            av_log(s, AV_LOG_ERROR, "could not get mpeg2 profile and level\n");
1657
            return -1;
1658
        }
1659
    }
1660

    
1661
    if (!mxf->header_written) {
1662
        if (mxf->edit_unit_byte_count) {
1663
            mxf_write_partition(s, 1, 2, header_open_partition_key, 1);
1664
            mxf_write_klv_fill(s);
1665
            mxf_write_index_table_segment(s);
1666
        } else {
1667
            mxf_write_partition(s, 0, 0, header_open_partition_key, 1);
1668
        }
1669
        mxf->header_written = 1;
1670
    }
1671

    
1672
    if (st->index == 0) {
1673
        if (!mxf->edit_unit_byte_count &&
1674
            (!mxf->edit_units_count || mxf->edit_units_count > EDIT_UNITS_PER_BODY) &&
1675
            !(flags & 0x33)) { // I frame, Gop start
1676
            mxf_write_klv_fill(s);
1677
            mxf_write_partition(s, 1, 2, body_partition_key, 0);
1678

    
1679
            mxf_write_klv_fill(s);
1680
            mxf_write_index_table_segment(s);
1681
        }
1682

    
1683
        mxf_write_klv_fill(s);
1684
        mxf_write_system_item(s);
1685

    
1686
        if (!mxf->edit_unit_byte_count) {
1687
            mxf->index_entries[mxf->edit_units_count].offset = mxf->body_offset;
1688
            mxf->index_entries[mxf->edit_units_count].flags = flags;
1689
            mxf->body_offset += KAG_SIZE; // size of system element
1690
        }
1691
        mxf->edit_units_count++;
1692
    } else if (!mxf->edit_unit_byte_count && st->index == 1) {
1693
        mxf->index_entries[mxf->edit_units_count-1].slice_offset =
1694
            mxf->body_offset - mxf->index_entries[mxf->edit_units_count-1].offset;
1695
    }
1696

    
1697
    mxf_write_klv_fill(s);
1698
    put_buffer(pb, sc->track_essence_element_key, 16); // write key
1699
    if (s->oformat == &mxf_d10_muxer) {
1700
        if (st->codec->codec_type == CODEC_TYPE_VIDEO)
1701
            mxf_write_d10_video_packet(s, st, pkt);
1702
        else
1703
            mxf_write_d10_audio_packet(s, st, pkt);
1704
    } else {
1705
        klv_encode_ber4_length(pb, pkt->size); // write length
1706
        put_buffer(pb, pkt->data, pkt->size);
1707
        mxf->body_offset += 16+4+pkt->size + klv_fill_size(16+4+pkt->size);
1708
    }
1709

    
1710
    put_flush_packet(pb);
1711

    
1712
    return 0;
1713
}
1714

    
1715
static void mxf_write_random_index_pack(AVFormatContext *s)
1716
{
1717
    MXFContext *mxf = s->priv_data;
1718
    ByteIOContext *pb = s->pb;
1719
    uint64_t pos = url_ftell(pb);
1720
    int i;
1721

    
1722
    put_buffer(pb, random_index_pack_key, 16);
1723
    klv_encode_ber_length(pb, 28 + 12*mxf->body_partitions_count);
1724

    
1725
    if (mxf->edit_unit_byte_count)
1726
        put_be32(pb, 1); // BodySID of header partition
1727
    else
1728
        put_be32(pb, 0); // BodySID of header partition
1729
    put_be64(pb, 0); // offset of header partition
1730

    
1731
    for (i = 0; i < mxf->body_partitions_count; i++) {
1732
        put_be32(pb, 1); // BodySID
1733
        put_be64(pb, mxf->body_partition_offset[i]);
1734
    }
1735

    
1736
    put_be32(pb, 0); // BodySID of footer partition
1737
    put_be64(pb, mxf->footer_partition_offset);
1738

    
1739
    put_be32(pb, url_ftell(pb) - pos + 4);
1740
}
1741

    
1742
static int mxf_write_footer(AVFormatContext *s)
1743
{
1744
    MXFContext *mxf = s->priv_data;
1745
    ByteIOContext *pb = s->pb;
1746

    
1747
    mxf->duration = mxf->last_indexed_edit_unit + mxf->edit_units_count;
1748

    
1749
    mxf_write_klv_fill(s);
1750
    mxf->footer_partition_offset = url_ftell(pb);
1751
    if (mxf->edit_unit_byte_count) { // no need to repeat index
1752
        mxf_write_partition(s, 0, 0, footer_partition_key, 0);
1753
    } else {
1754
        mxf_write_partition(s, 0, 2, footer_partition_key, 0);
1755

    
1756
        mxf_write_klv_fill(s);
1757
        mxf_write_index_table_segment(s);
1758
    }
1759

    
1760
    mxf_write_klv_fill(s);
1761
    mxf_write_random_index_pack(s);
1762

    
1763
    if (!url_is_streamed(s->pb)) {
1764
        url_fseek(pb, 0, SEEK_SET);
1765
        if (mxf->edit_unit_byte_count) {
1766
            mxf_write_partition(s, 1, 2, header_closed_partition_key, 1);
1767
            mxf_write_klv_fill(s);
1768
            mxf_write_index_table_segment(s);
1769
        } else {
1770
            mxf_write_partition(s, 0, 0, header_closed_partition_key, 1);
1771
        }
1772
    }
1773

    
1774
    ff_audio_interleave_close(s);
1775

    
1776
    av_freep(&mxf->index_entries);
1777
    av_freep(&mxf->body_partition_offset);
1778
    av_freep(&mxf->timecode_track->priv_data);
1779
    av_freep(&mxf->timecode_track);
1780

    
1781
    mxf_free(s);
1782

    
1783
    return 0;
1784
}
1785

    
1786
static int mxf_interleave_get_packet(AVFormatContext *s, AVPacket *out, AVPacket *pkt, int flush)
1787
{
1788
    AVPacketList *pktl;
1789
    int stream_count = 0;
1790
    int streams[MAX_STREAMS];
1791

    
1792
    memset(streams, 0, sizeof(streams));
1793
    pktl = s->packet_buffer;
1794
    while (pktl) {
1795
        //av_log(s, AV_LOG_DEBUG, "show st:%d dts:%lld\n", pktl->pkt.stream_index, pktl->pkt.dts);
1796
        if (!streams[pktl->pkt.stream_index])
1797
            stream_count++;
1798
        streams[pktl->pkt.stream_index]++;
1799
        pktl = pktl->next;
1800
    }
1801

    
1802
    if (stream_count && (s->nb_streams == stream_count || flush)) {
1803
        pktl = s->packet_buffer;
1804
        if (s->nb_streams != stream_count) {
1805
            AVPacketList *last = NULL;
1806
            // find last packet in edit unit
1807
            while (pktl) {
1808
                if (!stream_count || pktl->pkt.stream_index == 0)
1809
                    break;
1810
                last = pktl;
1811
                pktl = pktl->next;
1812
                stream_count--;
1813
            }
1814
            // purge packet queue
1815
            while (pktl) {
1816
                AVPacketList *next = pktl->next;
1817
                av_free_packet(&pktl->pkt);
1818
                av_freep(&pktl);
1819
                pktl = next;
1820
            }
1821
            if (last)
1822
                last->next = NULL;
1823
            else {
1824
                s->packet_buffer = NULL;
1825
                goto out;
1826
            }
1827
            pktl = s->packet_buffer;
1828
        }
1829

    
1830
        *out = pktl->pkt;
1831
        //av_log(s, AV_LOG_DEBUG, "out st:%d dts:%lld\n", (*out).stream_index, (*out).dts);
1832
        s->packet_buffer = pktl->next;
1833
        av_freep(&pktl);
1834
        return 1;
1835
    } else {
1836
    out:
1837
        av_init_packet(out);
1838
        return 0;
1839
    }
1840
}
1841

    
1842
static int mxf_compare_timestamps(AVFormatContext *s, AVPacket *next, AVPacket *pkt)
1843
{
1844
    MXFStreamContext *sc  = s->streams[pkt ->stream_index]->priv_data;
1845
    MXFStreamContext *sc2 = s->streams[next->stream_index]->priv_data;
1846

    
1847
    return next->dts > pkt->dts ||
1848
        (next->dts == pkt->dts && sc->order < sc2->order);
1849
}
1850

    
1851
static int mxf_interleave(AVFormatContext *s, AVPacket *out, AVPacket *pkt, int flush)
1852
{
1853
    return ff_audio_rechunk_interleave(s, out, pkt, flush,
1854
                               mxf_interleave_get_packet, mxf_compare_timestamps);
1855
}
1856

    
1857
AVOutputFormat mxf_muxer = {
1858
    "mxf",
1859
    NULL_IF_CONFIG_SMALL("Material eXchange Format"),
1860
    "application/mxf",
1861
    "mxf",
1862
    sizeof(MXFContext),
1863
    CODEC_ID_PCM_S16LE,
1864
    CODEC_ID_MPEG2VIDEO,
1865
    mxf_write_header,
1866
    mxf_write_packet,
1867
    mxf_write_footer,
1868
    AVFMT_NOTIMESTAMPS,
1869
    NULL,
1870
    mxf_interleave,
1871
};
1872

    
1873
AVOutputFormat mxf_d10_muxer = {
1874
    "mxf_d10",
1875
    NULL_IF_CONFIG_SMALL("Material eXchange Format, D-10 Mapping"),
1876
    "application/mxf",
1877
    NULL,
1878
    sizeof(MXFContext),
1879
    CODEC_ID_PCM_S16LE,
1880
    CODEC_ID_MPEG2VIDEO,
1881
    mxf_write_header,
1882
    mxf_write_packet,
1883
    mxf_write_footer,
1884
    AVFMT_NOTIMESTAMPS,
1885
    NULL,
1886
    mxf_interleave,
1887
};