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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 "libavutil/fifo.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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typedef struct {
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    AVFifoBuffer fifo;
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    unsigned fifo_size;           ///< current fifo size allocated
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    uint64_t dts;                 ///< current dts
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    int sample_size;              ///< size of one sample all channels included
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    const int *samples_per_frame; ///< must be 0 terminated
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    const int *samples;           ///< current samples per frame, pointer to samples_per_frame
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} AudioInterleaveContext;
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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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    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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    int64_t duration;
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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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} 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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    enum CodecID id;
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    void (*write_desc)();
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} MXFContainerEssenceEntry;
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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 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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      CODEC_ID_MPEG2VIDEO, 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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      CODEC_ID_PCM_S16LE, 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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      CODEC_ID_PCM_S16LE, mxf_write_wav_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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      CODEC_ID_NONE, 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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    uint8_t essence_containers_indices[FF_ARRAY_ELEMS(mxf_essence_container_uls)];
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    AVRational time_base;
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    int header_written;
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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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/**
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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 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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/**
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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 */
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    { 0x3B03, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x06,0x01,0x01,0x04,0x02,0x01,0x00,0x00}}, /* Content Storage reference */
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    { 0x3B09, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x05,0x01,0x02,0x02,0x03,0x00,0x00,0x00,0x00}}, /* Operational Pattern UL */
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    { 0x3B0A, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x05,0x01,0x02,0x02,0x10,0x02,0x01,0x00,0x00}}, /* Essence Containers UL batch */
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    { 0x3B0B, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x05,0x01,0x02,0x02,0x10,0x02,0x02,0x00,0x00}}, /* DM Schemes UL batch */
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    // Identification
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    { 0x3C09, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x05,0x20,0x07,0x01,0x01,0x00,0x00,0x00}}, /* This Generation UID */
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    { 0x3C01, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x05,0x20,0x07,0x01,0x02,0x01,0x00,0x00}}, /* Company Name */
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    { 0x3C02, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x05,0x20,0x07,0x01,0x03,0x01,0x00,0x00}}, /* Product Name */
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    { 0x3C04, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x05,0x20,0x07,0x01,0x05,0x01,0x00,0x00}}, /* Version String */
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    { 0x3C05, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x05,0x20,0x07,0x01,0x07,0x00,0x00,0x00}}, /* Product ID */
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    { 0x3C06, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x07,0x02,0x01,0x10,0x02,0x03,0x00,0x00}}, /* Modification Date */
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    // Content Storage
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    { 0x1901, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x06,0x01,0x01,0x04,0x05,0x01,0x00,0x00}}, /* Package strong reference batch */
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    { 0x1902, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x06,0x01,0x01,0x04,0x05,0x02,0x00,0x00}}, /* Package strong reference batch */
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    // Essence Container Data
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    { 0x2701, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x06,0x01,0x01,0x06,0x01,0x00,0x00,0x00}}, /* Linked Package UID */
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    { 0x3F07, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x04,0x01,0x03,0x04,0x04,0x00,0x00,0x00,0x00}}, /* BodySID */
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    // Package
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    { 0x4401, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x01,0x01,0x01,0x15,0x10,0x00,0x00,0x00,0x00}}, /* Package UID */
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    { 0x4405, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x07,0x02,0x01,0x10,0x01,0x03,0x00,0x00}}, /* Package Creation Date */
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    { 0x4404, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x07,0x02,0x01,0x10,0x02,0x05,0x00,0x00}}, /* Package Modified Date */
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    { 0x4403, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x06,0x01,0x01,0x04,0x06,0x05,0x00,0x00}}, /* Tracks Strong reference array */
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    { 0x4701, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x06,0x01,0x01,0x04,0x02,0x03,0x00,0x00}}, /* Descriptor */
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    // Track
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    { 0x4801, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x01,0x07,0x01,0x01,0x00,0x00,0x00,0x00}}, /* Track ID */
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    { 0x4804, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x01,0x04,0x01,0x03,0x00,0x00,0x00,0x00}}, /* Track Number */
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    { 0x4B01, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x05,0x30,0x04,0x05,0x00,0x00,0x00,0x00}}, /* Edit Rate */
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    { 0x4B02, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x07,0x02,0x01,0x03,0x01,0x03,0x00,0x00}}, /* Origin */
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    { 0x4803, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x06,0x01,0x01,0x04,0x02,0x04,0x00,0x00}}, /* Sequence reference */
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    // Sequence
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    { 0x0201, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x04,0x07,0x01,0x00,0x00,0x00,0x00,0x00}}, /* Data Definition UL */
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    { 0x0202, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x07,0x02,0x02,0x01,0x01,0x03,0x00,0x00}}, /* Duration */
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    { 0x1001, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x06,0x01,0x01,0x04,0x06,0x09,0x00,0x00}}, /* Structural Components reference array */
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    // Source Clip
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    { 0x1201, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x05,0x07,0x02,0x01,0x03,0x01,0x04,0x00,0x00}}, /* Start position */
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    { 0x1101, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x06,0x01,0x01,0x03,0x01,0x00,0x00,0x00}}, /* SourcePackageID */
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    { 0x1102, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x06,0x01,0x01,0x03,0x02,0x00,0x00,0x00}}, /* SourceTrackID */
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    // File Descriptor
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    { 0x3F01, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x04,0x06,0x01,0x01,0x04,0x06,0x0B,0x00,0x00}}, /* Sub Descriptors reference array */
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    { 0x3006, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x05,0x06,0x01,0x01,0x03,0x05,0x00,0x00,0x00}}, /* Linked Track ID */
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    { 0x3001, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x01,0x04,0x06,0x01,0x01,0x00,0x00,0x00,0x00}}, /* SampleRate */
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    { 0x3004, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x06,0x01,0x01,0x04,0x01,0x02,0x00,0x00}}, /* Essence Container */
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    // Generic Picture Essence Descriptor
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    { 0x320C, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x01,0x04,0x01,0x03,0x01,0x04,0x00,0x00,0x00}}, /* Frame Layout */
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    { 0x320D, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x01,0x04,0x01,0x03,0x02,0x05,0x00,0x00,0x00}}, /* Video Line Map */
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    { 0x3203, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x01,0x04,0x01,0x05,0x02,0x02,0x00,0x00,0x00}}, /* Stored Width */
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    { 0x3202, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x01,0x04,0x01,0x05,0x02,0x01,0x00,0x00,0x00}}, /* Stored Height */
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    { 0x3209, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x01,0x04,0x01,0x05,0x01,0x0C,0x00,0x00,0x00}}, /* Display Width */
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    { 0x3208, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x01,0x04,0x01,0x05,0x01,0x0B,0x00,0x00,0x00}}, /* Display Height */
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    { 0x320E, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x01,0x04,0x01,0x01,0x01,0x01,0x00,0x00,0x00}}, /* Aspect Ratio */
184
    { 0x3201, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x04,0x01,0x06,0x01,0x00,0x00,0x00,0x00}}, /* Picture Essence Coding */
185
    // Generic Sound Essence Descriptor
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    { 0x3D02, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x05,0x04,0x02,0x03,0x01,0x04,0x00,0x00,0x00}}, /* Locked/Unlocked */
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    { 0x3D03, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x05,0x04,0x02,0x03,0x01,0x01,0x01,0x00,0x00}}, /* Audio sampling rate */
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    { 0x3D07, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x05,0x04,0x02,0x01,0x01,0x04,0x00,0x00,0x00}}, /* ChannelCount */
189
    { 0x3D01, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x04,0x04,0x02,0x03,0x03,0x04,0x00,0x00,0x00}}, /* Quantization bits */
190 0df4903a Baptiste Coudurier
    { 0x3D06, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x04,0x02,0x04,0x02,0x00,0x00,0x00,0x00}}, /* Sound Essence Compression */
191 cbd70c41 Baptiste Coudurier
    // MPEG video Descriptor
192
    { 0x8000, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x05,0x04,0x01,0x06,0x02,0x01,0x0B,0x00,0x00}}, /* BitRate */
193 9b9466b0 Vitor Sessak
};
194
195 b6fa8a8a Baptiste Coudurier
static void mxf_write_uuid(ByteIOContext *pb, enum MXFMetadataSetType type, int value)
196 e48891bd Zhentan Feng
{
197
    put_buffer(pb, uuid_base, 12);
198
    put_be16(pb, type);
199
    put_be16(pb, value);
200
}
201
202 b6fa8a8a Baptiste Coudurier
static void mxf_write_umid(ByteIOContext *pb, enum MXFMetadataSetType type, int value)
203 2c8d4388 Zhentan Feng
{
204
    put_buffer(pb, umid_base, 16);
205
    mxf_write_uuid(pb, type, value);
206
}
207 fda0d4af Zhentan Feng
208
static void mxf_write_refs_count(ByteIOContext *pb, int ref_count)
209
{
210
    put_be32(pb, ref_count);
211
    put_be32(pb, 16);
212
}
213
214 e48891bd Zhentan Feng
static int klv_encode_ber_length(ByteIOContext *pb, uint64_t len)
215
{
216
    // Determine the best BER size
217
    int size;
218
    if (len < 128) {
219
        //short form
220
        put_byte(pb, len);
221
        return 1;
222
    }
223
224
    size = (av_log2(len) >> 3) + 1;
225
226
    // long form
227
    put_byte(pb, 0x80 + size);
228
    while(size) {
229
        size --;
230
        put_byte(pb, len >> 8 * size & 0xff);
231
    }
232
    return 0;
233
}
234
235 c18d208a Baptiste Coudurier
/*
236 d4ffc57d Baptiste Coudurier
 * Get essence container ul index
237 c18d208a Baptiste Coudurier
 */
238 d4ffc57d Baptiste Coudurier
static int mxf_get_essence_container_ul_index(enum CodecID id)
239 b5f46e93 Baptiste Coudurier
{
240 d4ffc57d Baptiste Coudurier
    int i;
241 37d3e066 Aurelien Jacobs
    for (i = 0; i < FF_ARRAY_ELEMS(mxf_essence_container_uls); i++)
242 d4ffc57d Baptiste Coudurier
        if (mxf_essence_container_uls[i].id == id)
243
            return i;
244
    return -1;
245 b5f46e93 Baptiste Coudurier
}
246
247 9b9466b0 Vitor Sessak
static void mxf_write_primer_pack(AVFormatContext *s)
248 e48891bd Zhentan Feng
{
249
    ByteIOContext *pb = s->pb;
250
    int local_tag_number, i = 0;
251
252 37d3e066 Aurelien Jacobs
    local_tag_number = FF_ARRAY_ELEMS(mxf_local_tag_batch);
253 e48891bd Zhentan Feng
254
    put_buffer(pb, primer_pack_key, 16);
255
    klv_encode_ber_length(pb, local_tag_number * 18 + 8);
256
257
    put_be32(pb, local_tag_number); // local_tag num
258
    put_be32(pb, 18); // item size, always 18 according to the specs
259
260
    for (i = 0; i < local_tag_number; i++) {
261
        put_be16(pb, mxf_local_tag_batch[i].local_tag);
262
        put_buffer(pb, mxf_local_tag_batch[i].uid, 16);
263
    }
264
}
265
266 851a8297 Baptiste Coudurier
static void mxf_write_local_tag(ByteIOContext *pb, int size, int tag)
267 e48891bd Zhentan Feng
{
268
    put_be16(pb, tag);
269 851a8297 Baptiste Coudurier
    put_be16(pb, size);
270 e48891bd Zhentan Feng
}
271
272 2c8d4388 Zhentan Feng
static void mxf_write_metadata_key(ByteIOContext *pb, unsigned int value)
273
{
274
    put_buffer(pb, header_metadata_key, 13);
275
    put_be24(pb, value);
276
}
277
278 b5f46e93 Baptiste Coudurier
static void mxf_free(AVFormatContext *s)
279
{
280
    int i;
281
282
    for (i = 0; i < s->nb_streams; i++) {
283 ac0ab12f Baptiste Coudurier
        AVStream *st = s->streams[i];
284 b5f46e93 Baptiste Coudurier
        av_freep(&st->priv_data);
285
    }
286
}
287
288
static const MXFDataDefinitionUL *mxf_get_data_definition_ul(enum CodecType type)
289
{
290 e48891bd Zhentan Feng
    const MXFDataDefinitionUL *uls = ff_mxf_data_definition_uls;
291 b5f46e93 Baptiste Coudurier
    while (uls->type != CODEC_TYPE_DATA) {
292
        if (type == uls->type)
293
            break;
294 a8f6e362 Baptiste Coudurier
        uls++;
295 b5f46e93 Baptiste Coudurier
    }
296
    return uls;
297
}
298
299 3eaa53b3 Baptiste Coudurier
static void mxf_write_essence_container_refs(AVFormatContext *s)
300 cedebde1 Carl Eugen Hoyos
{
301 c18d208a Baptiste Coudurier
    MXFContext *c = s->priv_data;
302 cedebde1 Carl Eugen Hoyos
    ByteIOContext *pb = s->pb;
303 c18d208a Baptiste Coudurier
    int i;
304 cedebde1 Carl Eugen Hoyos
305 e7daab1e Baptiste Coudurier
    mxf_write_refs_count(pb, c->essence_container_count);
306
    av_log(s,AV_LOG_DEBUG, "essence container count:%d\n", c->essence_container_count);
307
    for (i = 0; i < c->essence_container_count; i++) {
308 b8ad3f78 Baptiste Coudurier
        put_buffer(pb, mxf_essence_container_uls[c->essence_containers_indices[i]].container_ul, 16);
309
        PRINT_KEY(s, "essence container ul:\n", mxf_essence_container_uls[c->essence_containers_indices[i]].container_ul);
310 e7daab1e Baptiste Coudurier
    }
311 cedebde1 Carl Eugen Hoyos
}
312
313 9b9466b0 Vitor Sessak
static void mxf_write_preface(AVFormatContext *s)
314
{
315
    MXFContext *mxf = s->priv_data;
316
    ByteIOContext *pb = s->pb;
317
318
    mxf_write_metadata_key(pb, 0x012f00);
319
    PRINT_KEY(s, "preface key", pb->buf_ptr - 16);
320
    klv_encode_ber_length(pb, 130 + 16 * mxf->essence_container_count);
321
322
    // write preface set uid
323
    mxf_write_local_tag(pb, 16, 0x3C0A);
324
    mxf_write_uuid(pb, Preface, 0);
325
    PRINT_KEY(s, "preface uid", pb->buf_ptr - 16);
326
327
    // write create date as unknown
328
    mxf_write_local_tag(pb, 8, 0x3B02);
329
    put_be64(pb, 0);
330
331
    // write version
332
    mxf_write_local_tag(pb, 2, 0x3B05);
333
    put_be16(pb, 1);
334
335
    // write identification_refs
336
    mxf_write_local_tag(pb, 16 + 8, 0x3B06);
337
    mxf_write_refs_count(pb, 1);
338
    mxf_write_uuid(pb, Identification, 0);
339
340
    // write content_storage_refs
341
    mxf_write_local_tag(pb, 16, 0x3B03);
342
    mxf_write_uuid(pb, ContentStorage, 0);
343
344
    mxf_write_local_tag(pb, 16, 0x3B09);
345
    put_buffer(pb, op1a_ul, 16);
346
347
    // write essence_container_refs
348
    mxf_write_local_tag(pb, 8 + 16 * mxf->essence_container_count, 0x3B0A);
349 3eaa53b3 Baptiste Coudurier
    mxf_write_essence_container_refs(s);
350 9b9466b0 Vitor Sessak
351
    // write dm_scheme_refs
352
    mxf_write_local_tag(pb, 8, 0x3B0B);
353
    put_be64(pb, 0);
354
}
355
356 5f94b920 Baptiste Coudurier
/*
357 9fedbc89 Baptiste Coudurier
 * Write a local tag containing an ascii string as utf-16
358 5f94b920 Baptiste Coudurier
 */
359 9fedbc89 Baptiste Coudurier
static void mxf_write_local_tag_utf16(ByteIOContext *pb, int tag, const char *value)
360 5f94b920 Baptiste Coudurier
{
361 6b05863a Baptiste Coudurier
    int i, size = strlen(value);
362 9fedbc89 Baptiste Coudurier
    mxf_write_local_tag(pb, size*2, tag);
363 5f94b920 Baptiste Coudurier
    for (i = 0; i < size; i++)
364
        put_be16(pb, value[i]);
365
}
366
367 9b9466b0 Vitor Sessak
static void mxf_write_identification(AVFormatContext *s)
368
{
369
    ByteIOContext *pb = s->pb;
370 6fdb4fb0 Baptiste Coudurier
    const char *company = "FFmpeg";
371
    const char *product = "OP1a Muxer";
372 283a02c5 Baptiste Coudurier
    const char *version;
373 6fdb4fb0 Baptiste Coudurier
    int length;
374 9b9466b0 Vitor Sessak
375
    mxf_write_metadata_key(pb, 0x013000);
376
    PRINT_KEY(s, "identification key", pb->buf_ptr - 16);
377
378 b4395253 Baptiste Coudurier
    version = s->streams[0]->codec->flags & CODEC_FLAG_BITEXACT ?
379 0c0c4d64 Baptiste Coudurier
        "0.0.0" : AV_STRINGIFY(LIBAVFORMAT_VERSION);
380 6fdb4fb0 Baptiste Coudurier
    length = 84 + (strlen(company)+strlen(product)+strlen(version))*2; // utf-16
381 9b9466b0 Vitor Sessak
    klv_encode_ber_length(pb, length);
382
383
    // write uid
384
    mxf_write_local_tag(pb, 16, 0x3C0A);
385
    mxf_write_uuid(pb, Identification, 0);
386
    PRINT_KEY(s, "identification uid", pb->buf_ptr - 16);
387 0b62964f Baptiste Coudurier
388 9b9466b0 Vitor Sessak
    // write generation uid
389
    mxf_write_local_tag(pb, 16, 0x3C09);
390
    mxf_write_uuid(pb, Identification, 1);
391
392 6fdb4fb0 Baptiste Coudurier
    mxf_write_local_tag_utf16(pb, 0x3C01, company); // Company Name
393
    mxf_write_local_tag_utf16(pb, 0x3C02, product); // Product Name
394 283a02c5 Baptiste Coudurier
    mxf_write_local_tag_utf16(pb, 0x3C04, version); // Version String
395 9b9466b0 Vitor Sessak
396
    // write product uid
397
    mxf_write_local_tag(pb, 16, 0x3C05);
398
    mxf_write_uuid(pb, Identification, 2);
399
400
    // write modified date
401
    mxf_write_local_tag(pb, 8, 0x3C06);
402
    put_be64(pb, 0);
403
}
404
405
static void mxf_write_content_storage(AVFormatContext *s)
406
{
407
    ByteIOContext *pb = s->pb;
408
409
    mxf_write_metadata_key(pb, 0x011800);
410
    PRINT_KEY(s, "content storage key", pb->buf_ptr - 16);
411 6e4668b8 Baptiste Coudurier
    klv_encode_ber_length(pb, 92);
412 9b9466b0 Vitor Sessak
413
    // write uid
414
    mxf_write_local_tag(pb, 16, 0x3C0A);
415
    mxf_write_uuid(pb, ContentStorage, 0);
416
    PRINT_KEY(s, "content storage uid", pb->buf_ptr - 16);
417 a8f6e362 Baptiste Coudurier
418 9b9466b0 Vitor Sessak
    // write package reference
419
    mxf_write_local_tag(pb, 16 * 2 + 8, 0x1901);
420
    mxf_write_refs_count(pb, 2);
421
    mxf_write_uuid(pb, MaterialPackage, 0);
422
    mxf_write_uuid(pb, SourcePackage, 0);
423 6e4668b8 Baptiste Coudurier
424
    // write essence container data
425
    mxf_write_local_tag(pb, 8 + 16, 0x1902);
426
    mxf_write_refs_count(pb, 1);
427
    mxf_write_uuid(pb, EssenceContainerData, 0);
428 9b9466b0 Vitor Sessak
}
429
430 064abb8a Baptiste Coudurier
static void mxf_write_track(AVFormatContext *s, AVStream *st, enum MXFMetadataSetType type)
431 6986662b Vitor Sessak
{
432
    ByteIOContext *pb = s->pb;
433 ac0ab12f Baptiste Coudurier
    MXFStreamContext *sc = st->priv_data;
434 6986662b Vitor Sessak
435
    mxf_write_metadata_key(pb, 0x013b00);
436
    PRINT_KEY(s, "track key", pb->buf_ptr - 16);
437
    klv_encode_ber_length(pb, 80);
438
439
    // write track uid
440
    mxf_write_local_tag(pb, 16, 0x3C0A);
441 064abb8a Baptiste Coudurier
    mxf_write_uuid(pb, type == MaterialPackage ? Track : Track + TypeBottom, st->index);
442 6986662b Vitor Sessak
    PRINT_KEY(s, "track uid", pb->buf_ptr - 16);
443 a8f6e362 Baptiste Coudurier
444 6986662b Vitor Sessak
    // write track id
445
    mxf_write_local_tag(pb, 4, 0x4801);
446 064abb8a Baptiste Coudurier
    put_be32(pb, st->index);
447 6986662b Vitor Sessak
448 b8ad3f78 Baptiste Coudurier
    // write track number
449 6986662b Vitor Sessak
    mxf_write_local_tag(pb, 4, 0x4804);
450 b8ad3f78 Baptiste Coudurier
    if (type == MaterialPackage)
451 6986662b Vitor Sessak
        put_be32(pb, 0); // track number of material package is 0
452 b8ad3f78 Baptiste Coudurier
    else
453
        put_buffer(pb, sc->track_essence_element_key + 12, 4);
454 6986662b Vitor Sessak
455
    mxf_write_local_tag(pb, 8, 0x4B01);
456
    put_be32(pb, st->time_base.den);
457
    put_be32(pb, st->time_base.num);
458
459
    // write origin
460
    mxf_write_local_tag(pb, 8, 0x4B02);
461
    put_be64(pb, 0);
462
463
    // write sequence refs
464
    mxf_write_local_tag(pb, 16, 0x4803);
465 064abb8a Baptiste Coudurier
    mxf_write_uuid(pb, type == MaterialPackage ? Sequence: Sequence + TypeBottom, st->index);
466 6986662b Vitor Sessak
}
467
468 a8f6e362 Baptiste Coudurier
static void mxf_write_common_fields(ByteIOContext *pb, AVStream *st)
469 fda0d4af Zhentan Feng
{
470 ac0ab12f Baptiste Coudurier
    const MXFDataDefinitionUL *data_def_ul = mxf_get_data_definition_ul(st->codec->codec_type);
471 cdedd878 Baptiste Coudurier
    MXFStreamContext *sc = st->priv_data;
472
473 fda0d4af Zhentan Feng
    // find data define uls
474
    mxf_write_local_tag(pb, 16, 0x0201);
475
    put_buffer(pb, data_def_ul->uid, 16);
476
477
    // write duration
478
    mxf_write_local_tag(pb, 8, 0x0202);
479 cdedd878 Baptiste Coudurier
    put_be64(pb, sc->duration);
480 fda0d4af Zhentan Feng
}
481
482 064abb8a Baptiste Coudurier
static void mxf_write_sequence(AVFormatContext *s, AVStream *st, enum MXFMetadataSetType type)
483 6986662b Vitor Sessak
{
484
    ByteIOContext *pb = s->pb;
485
486
    mxf_write_metadata_key(pb, 0x010f00);
487
    PRINT_KEY(s, "sequence key", pb->buf_ptr - 16);
488
    klv_encode_ber_length(pb, 80);
489
490
    mxf_write_local_tag(pb, 16, 0x3C0A);
491 064abb8a Baptiste Coudurier
    mxf_write_uuid(pb, type == MaterialPackage ? Sequence: Sequence + TypeBottom, st->index);
492 6986662b Vitor Sessak
493
    PRINT_KEY(s, "sequence uid", pb->buf_ptr - 16);
494
    mxf_write_common_fields(pb, st);
495
496
    // write structural component
497
    mxf_write_local_tag(pb, 16 + 8, 0x1001);
498
    mxf_write_refs_count(pb, 1);
499 064abb8a Baptiste Coudurier
    mxf_write_uuid(pb, type == MaterialPackage ? SourceClip: SourceClip + TypeBottom, st->index);
500 6986662b Vitor Sessak
}
501
502 064abb8a Baptiste Coudurier
static void mxf_write_structural_component(AVFormatContext *s, AVStream *st, enum MXFMetadataSetType type)
503 6986662b Vitor Sessak
{
504
    ByteIOContext *pb = s->pb;
505
    int i;
506
507
    mxf_write_metadata_key(pb, 0x011100);
508
    PRINT_KEY(s, "sturctural component key", pb->buf_ptr - 16);
509
    klv_encode_ber_length(pb, 108);
510
511
    // write uid
512
    mxf_write_local_tag(pb, 16, 0x3C0A);
513 064abb8a Baptiste Coudurier
    mxf_write_uuid(pb, type == MaterialPackage ? SourceClip: SourceClip + TypeBottom, st->index);
514 6986662b Vitor Sessak
515
    PRINT_KEY(s, "structural component uid", pb->buf_ptr - 16);
516
    mxf_write_common_fields(pb, st);
517
518
    // write start_position
519
    mxf_write_local_tag(pb, 8, 0x1201);
520
    put_be64(pb, 0);
521
522 a8f6e362 Baptiste Coudurier
    // write source package uid, end of the reference
523 6986662b Vitor Sessak
    mxf_write_local_tag(pb, 32, 0x1101);
524
    if (type == SourcePackage) {
525 a8f6e362 Baptiste Coudurier
        for (i = 0; i < 4; i++)
526 6986662b Vitor Sessak
            put_be64(pb, 0);
527
    } else
528
        mxf_write_umid(pb, SourcePackage, 0);
529
530 a8f6e362 Baptiste Coudurier
    // write source track id
531 6986662b Vitor Sessak
    mxf_write_local_tag(pb, 4, 0x1102);
532
    if (type == SourcePackage)
533
        put_be32(pb, 0);
534
    else
535 064abb8a Baptiste Coudurier
        put_be32(pb, st->index);
536 6986662b Vitor Sessak
}
537
538 9b9466b0 Vitor Sessak
static void mxf_write_multi_descriptor(AVFormatContext *s)
539
{
540
    ByteIOContext *pb = s->pb;
541
    int i;
542
543
    mxf_write_metadata_key(pb, 0x014400);
544
    PRINT_KEY(s, "multiple descriptor key", pb->buf_ptr - 16);
545
    klv_encode_ber_length(pb, 64 + 16 * s->nb_streams);
546
547
    mxf_write_local_tag(pb, 16, 0x3C0A);
548
    mxf_write_uuid(pb, MultipleDescriptor, 0);
549
    PRINT_KEY(s, "multi_desc uid", pb->buf_ptr - 16);
550
551
    // write sample rate
552
    mxf_write_local_tag(pb, 8, 0x3001);
553
    put_be32(pb, s->streams[0]->time_base.den);
554
    put_be32(pb, s->streams[0]->time_base.num);
555
556
    // write essence container ul
557
    mxf_write_local_tag(pb, 16, 0x3004);
558
    put_buffer(pb, multiple_desc_ul, 16);
559
560
    // write sub descriptor refs
561
    mxf_write_local_tag(pb, s->nb_streams * 16 + 8, 0x3F01);
562
    mxf_write_refs_count(pb, s->nb_streams);
563 a8f6e362 Baptiste Coudurier
    for (i = 0; i < s->nb_streams; i++)
564 9b9466b0 Vitor Sessak
        mxf_write_uuid(pb, SubDescriptor, i);
565
}
566
567 95900588 Baptiste Coudurier
static void mxf_write_generic_desc(ByteIOContext *pb, AVStream *st, const UID key, unsigned size)
568 fda0d4af Zhentan Feng
{
569 a2f55f22 Baptiste Coudurier
    MXFStreamContext *sc = st->priv_data;
570 fda0d4af Zhentan Feng
571 f2ebd159 Baptiste Coudurier
    put_buffer(pb, key, 16);
572 95900588 Baptiste Coudurier
    klv_encode_ber_length(pb, size);
573 fda0d4af Zhentan Feng
574
    mxf_write_local_tag(pb, 16, 0x3C0A);
575
    mxf_write_uuid(pb, SubDescriptor, st->index);
576
577
    mxf_write_local_tag(pb, 4, 0x3006);
578
    put_be32(pb, st->index);
579
580 9b9466b0 Vitor Sessak
    mxf_write_local_tag(pb, 8, 0x3001);
581
    put_be32(pb, st->time_base.den);
582
    put_be32(pb, st->time_base.num);
583
584 fda0d4af Zhentan Feng
    mxf_write_local_tag(pb, 16, 0x3004);
585 d4ffc57d Baptiste Coudurier
    put_buffer(pb, mxf_essence_container_uls[sc->index].container_ul, 16);
586 fda0d4af Zhentan Feng
}
587
588 f2ebd159 Baptiste Coudurier
static const UID mxf_mpegvideo_descriptor_key = { 0x06,0x0E,0x2B,0x34,0x02,0x53,0x01,0x01,0x0d,0x01,0x01,0x01,0x01,0x01,0x51,0x00 };
589
static const UID mxf_wav_descriptor_key       = { 0x06,0x0E,0x2B,0x34,0x02,0x53,0x01,0x01,0x0d,0x01,0x01,0x01,0x01,0x01,0x48,0x00 };
590 baed2ec4 Baptiste Coudurier
static const UID mxf_aes3_descriptor_key      = { 0x06,0x0E,0x2B,0x34,0x02,0x53,0x01,0x01,0x0d,0x01,0x01,0x01,0x01,0x01,0x47,0x00 };
591 f2ebd159 Baptiste Coudurier
592
static void mxf_write_mpegvideo_desc(AVFormatContext *s, AVStream *st)
593 fda0d4af Zhentan Feng
{
594 383dde71 Baptiste Coudurier
    MXFStreamContext *sc = st->priv_data;
595 fda0d4af Zhentan Feng
    ByteIOContext *pb = s->pb;
596 24d6a613 Baptiste Coudurier
    int stored_height = (st->codec->height+15)/16*16;
597 5e4aa542 Baptiste Coudurier
    AVRational dar;
598 74334ae1 Baptiste Coudurier
    int f1, f2;
599 fda0d4af Zhentan Feng
600 cbd70c41 Baptiste Coudurier
    mxf_write_generic_desc(pb, st, mxf_mpegvideo_descriptor_key, 157);
601 fda0d4af Zhentan Feng
602
    mxf_write_local_tag(pb, 4, 0x3203);
603
    put_be32(pb, st->codec->width);
604
605
    mxf_write_local_tag(pb, 4, 0x3202);
606 383dde71 Baptiste Coudurier
    put_be32(pb, stored_height>>sc->interlaced);
607 fda0d4af Zhentan Feng
608 724e7d8d Baptiste Coudurier
    mxf_write_local_tag(pb, 4, 0x3209);
609
    put_be32(pb, st->codec->width);
610
611
    mxf_write_local_tag(pb, 4, 0x3208);
612
    put_be32(pb, st->codec->height>>sc->interlaced);
613
614 cbd70c41 Baptiste Coudurier
    // bit rate
615
    mxf_write_local_tag(pb, 4, 0x8000);
616
    put_be32(pb, st->codec->bit_rate);
617
618 4118d68f Baptiste Coudurier
    // frame layout
619
    mxf_write_local_tag(pb, 1, 0x320C);
620
    put_byte(pb, sc->interlaced);
621
622 74334ae1 Baptiste Coudurier
    // video line map
623
    switch (st->codec->height) {
624
    case  576: f1 = 23; f2 = 336; break;
625
    case  608: f1 =  7; f2 = 320; break;
626
    case  480: f1 = 20; f2 = 283; break;
627
    case  512: f1 =  7; f2 = 270; break;
628
    case  720: f1 = 26; f2 =   0; break; // progressive
629
    case 1080: f1 = 21; f2 = 584; break;
630
    default:   f1 =  0; f2 =   0; break;
631
    }
632
633
    if (!sc->interlaced) {
634
        f2  = 0;
635
        f1 *= 2;
636
    }
637
638 8ed82d81 Baptiste Coudurier
    mxf_write_local_tag(pb, 16, 0x320D);
639
    put_be32(pb, sc->interlaced ? 2 : 1);
640
    put_be32(pb, 4);
641 74334ae1 Baptiste Coudurier
    put_be32(pb, f1);
642 8ed82d81 Baptiste Coudurier
    if (sc->interlaced)
643
        put_be32(pb, f2);
644 74334ae1 Baptiste Coudurier
645 5e4aa542 Baptiste Coudurier
    av_reduce(&dar.num, &dar.den,
646
              st->codec->width*st->codec->sample_aspect_ratio.num,
647
              st->codec->height*st->codec->sample_aspect_ratio.den,
648
              1024*1024);
649
650 fda0d4af Zhentan Feng
    mxf_write_local_tag(pb, 8, 0x320E);
651 5e4aa542 Baptiste Coudurier
    put_be32(pb, dar.num);
652
    put_be32(pb, dar.den);
653 221ef8ca Baptiste Coudurier
654
    mxf_write_local_tag(pb, 16, 0x3201);
655
    put_buffer(pb, *sc->codec_ul, 16);
656 fda0d4af Zhentan Feng
}
657
658 c6b579df Baptiste Coudurier
static void mxf_write_generic_sound_desc(AVFormatContext *s, AVStream *st, const UID key, unsigned size)
659 fda0d4af Zhentan Feng
{
660
    ByteIOContext *pb = s->pb;
661
662 c6b579df Baptiste Coudurier
    mxf_write_generic_desc(pb, st, key, size);
663 3f2795ed Baptiste Coudurier
664 c6b579df Baptiste Coudurier
    // audio locked
665 3f2795ed Baptiste Coudurier
    mxf_write_local_tag(pb, 1, 0x3D02);
666
    put_byte(pb, 1);
667 fda0d4af Zhentan Feng
668
    // write audio sampling rate
669
    mxf_write_local_tag(pb, 8, 0x3D03);
670
    put_be32(pb, st->codec->sample_rate);
671
    put_be32(pb, 1);
672
673
    mxf_write_local_tag(pb, 4, 0x3D07);
674
    put_be32(pb, st->codec->channels);
675
676
    mxf_write_local_tag(pb, 4, 0x3D01);
677 dd1c8f3e Luca Abeni
    put_be32(pb, st->codec->bits_per_coded_sample);
678 fda0d4af Zhentan Feng
}
679
680 c6b579df Baptiste Coudurier
static void mxf_write_wav_desc(AVFormatContext *s, AVStream *st)
681
{
682
    mxf_write_generic_sound_desc(s, st, mxf_wav_descriptor_key, 93);
683
}
684
685 baed2ec4 Baptiste Coudurier
static void mxf_write_aes3_desc(AVFormatContext *s, AVStream *st)
686
{
687
    mxf_write_generic_sound_desc(s, st, mxf_aes3_descriptor_key, 93);
688
}
689
690 98f7c5e0 Baptiste Coudurier
static void mxf_write_package(AVFormatContext *s, enum MXFMetadataSetType type)
691
{
692
    ByteIOContext *pb = s->pb;
693
    int i;
694
695
    if (type == MaterialPackage) {
696
        mxf_write_metadata_key(pb, 0x013600);
697
        PRINT_KEY(s, "Material Package key", pb->buf_ptr - 16);
698
        klv_encode_ber_length(pb, 92 + 16 * s->nb_streams);
699
    } else {
700
        mxf_write_metadata_key(pb, 0x013700);
701
        PRINT_KEY(s, "Source Package key", pb->buf_ptr - 16);
702
        klv_encode_ber_length(pb, 112 + 16 * s->nb_streams); // 20 bytes length for descriptor reference
703
    }
704
705
    // write uid
706
    mxf_write_local_tag(pb, 16, 0x3C0A);
707
    mxf_write_uuid(pb, type, 0);
708
    av_log(s,AV_LOG_DEBUG, "package type:%d\n", type);
709
    PRINT_KEY(s, "package uid", pb->buf_ptr - 16);
710
711
    // write package umid
712
    mxf_write_local_tag(pb, 32, 0x4401);
713
    mxf_write_umid(pb, type, 0);
714
    PRINT_KEY(s, "package umid second part", pb->buf_ptr - 16);
715
716
    // write create date
717
    mxf_write_local_tag(pb, 8, 0x4405);
718
    put_be64(pb, 0);
719
720
    // write modified date
721
    mxf_write_local_tag(pb, 8, 0x4404);
722
    put_be64(pb, 0);
723
724
    // write track refs
725
    mxf_write_local_tag(pb, s->nb_streams * 16 + 8, 0x4403);
726
    mxf_write_refs_count(pb, s->nb_streams);
727
    for (i = 0; i < s->nb_streams; i++)
728
        mxf_write_uuid(pb, type == MaterialPackage ? Track : Track + TypeBottom, i);
729
730
    // write multiple descriptor reference
731
    if (type == SourcePackage) {
732
        mxf_write_local_tag(pb, 16, 0x4701);
733 b1878364 Baptiste Coudurier
        if (s->nb_streams > 1) {
734
            mxf_write_uuid(pb, MultipleDescriptor, 0);
735
            mxf_write_multi_descriptor(s);
736
        } else
737
            mxf_write_uuid(pb, SubDescriptor, 0);
738 6ae9d3fa Baptiste Coudurier
    }
739 fda0d4af Zhentan Feng
740 38573e8f Baptiste Coudurier
    for (i = 0; i < s->nb_streams; i++) {
741 064abb8a Baptiste Coudurier
        AVStream *st = s->streams[i];
742
        mxf_write_track(s, st, type);
743
        mxf_write_sequence(s, st, type);
744
        mxf_write_structural_component(s, st, type);
745 fda0d4af Zhentan Feng
746
        if (type == SourcePackage) {
747 f2ebd159 Baptiste Coudurier
            MXFStreamContext *sc = st->priv_data;
748 d4ffc57d Baptiste Coudurier
            mxf_essence_container_uls[sc->index].write_desc(s, st);
749 fda0d4af Zhentan Feng
        }
750
    }
751
}
752
753 6e4668b8 Baptiste Coudurier
static int mxf_write_essence_container_data(AVFormatContext *s)
754
{
755
    ByteIOContext *pb = s->pb;
756
757
    mxf_write_metadata_key(pb, 0x012300);
758
    klv_encode_ber_length(pb, 64);
759
760
    mxf_write_local_tag(pb, 16, 0x3C0A); // Instance UID
761
    mxf_write_uuid(pb, EssenceContainerData, 0);
762
763
    mxf_write_local_tag(pb, 32, 0x2701); // Linked Package UID
764
    mxf_write_umid(pb, SourcePackage, 0);
765
766
    mxf_write_local_tag(pb, 4, 0x3F07); // BodySID
767
    put_be32(pb, 1);
768
769
    return 0;
770
}
771
772 2c8d4388 Zhentan Feng
static int mxf_write_header_metadata_sets(AVFormatContext *s)
773
{
774 a8f6e362 Baptiste Coudurier
    mxf_write_preface(s);
775 9b9466b0 Vitor Sessak
    mxf_write_identification(s);
776
    mxf_write_content_storage(s);
777 f05773ea Baptiste Coudurier
    mxf_write_package(s, MaterialPackage);
778
    mxf_write_package(s, SourcePackage);
779 6e4668b8 Baptiste Coudurier
    mxf_write_essence_container_data(s);
780 2c8d4388 Zhentan Feng
    return 0;
781
}
782
783 cc984060 Baptiste Coudurier
static void mxf_write_partition(AVFormatContext *s, int bodysid, const uint8_t *key, int write_metadata)
784 6986662b Vitor Sessak
{
785
    MXFContext *mxf = s->priv_data;
786
    ByteIOContext *pb = s->pb;
787 85b5ee2b Baptiste Coudurier
    int64_t header_byte_count_offset;
788 a8f6e362 Baptiste Coudurier
789 6986662b Vitor Sessak
    // write klv
790
    put_buffer(pb, key, 16);
791 3eaa53b3 Baptiste Coudurier
792 6986662b Vitor Sessak
    klv_encode_ber_length(pb, 88 + 16 * mxf->essence_container_count);
793
794
    // write partition value
795
    put_be16(pb, 1); // majorVersion
796
    put_be16(pb, 2); // minorVersion
797
    put_be32(pb, 1); // kagSize
798
799 ca276e6a Baptiste Coudurier
    put_be64(pb, url_ftell(pb) - 25); // thisPartition
800 6986662b Vitor Sessak
    put_be64(pb, 0); // previousPartition
801
802 cc984060 Baptiste Coudurier
    put_be64(pb, mxf->footer_partition_offset); // footerPartition
803 6986662b Vitor Sessak
804
    // set offset
805 85b5ee2b Baptiste Coudurier
    header_byte_count_offset = url_ftell(pb);
806 6986662b Vitor Sessak
    put_be64(pb, 0); // headerByteCount, update later
807
808
    // no indexTable
809
    put_be64(pb, 0); // indexByteCount
810
    put_be32(pb, 0); // indexSID
811
    put_be64(pb, 0); // bodyOffset
812
813
    put_be32(pb, bodysid); // bodySID
814
    put_buffer(pb, op1a_ul, 16); // operational pattern
815
816
    // essence container
817 3eaa53b3 Baptiste Coudurier
    mxf_write_essence_container_refs(s);
818 cc984060 Baptiste Coudurier
819
    if (write_metadata) {
820
        // mark the start of the headermetadata and calculate metadata size
821
        int64_t pos, start = url_ftell(s->pb);
822
        mxf_write_primer_pack(s);
823
        mxf_write_header_metadata_sets(s);
824
        pos = url_ftell(s->pb);
825
        // update header_byte_count
826 85b5ee2b Baptiste Coudurier
        url_fseek(pb, header_byte_count_offset, SEEK_SET);
827 cc984060 Baptiste Coudurier
        put_be64(pb, pos - start);
828
        url_fseek(pb, pos, SEEK_SET);
829
    }
830
831
    put_flush_packet(pb);
832 6986662b Vitor Sessak
}
833
834 4d418883 Baptiste Coudurier
static const UID mxf_mpeg2_codec_uls[] = {
835
    { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x03,0x04,0x01,0x02,0x02,0x01,0x01,0x10,0x00 }, // MP-ML I-Frame
836
    { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x03,0x04,0x01,0x02,0x02,0x01,0x01,0x11,0x00 }, // MP-ML Long GOP
837
    { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x03,0x04,0x01,0x02,0x02,0x01,0x02,0x02,0x00 }, // 422P-ML I-Frame
838
    { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x03,0x04,0x01,0x02,0x02,0x01,0x02,0x03,0x00 }, // 422P-ML Long GOP
839
    { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x03,0x04,0x01,0x02,0x02,0x01,0x03,0x02,0x00 }, // MP-HL I-Frame
840
    { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x03,0x04,0x01,0x02,0x02,0x01,0x03,0x03,0x00 }, // MP-HL Long GOP
841
    { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x03,0x04,0x01,0x02,0x02,0x01,0x04,0x02,0x00 }, // 422P-HL I-Frame
842
    { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x03,0x04,0x01,0x02,0x02,0x01,0x04,0x03,0x00 }, // 422P-HL Long GOP
843
};
844
845
static const UID *mxf_get_mpeg2_codec_ul(AVCodecContext *avctx)
846
{
847
    if (avctx->profile == 4) { // Main
848
        if (avctx->level == 8) // Main
849
            return avctx->gop_size ?
850
                &mxf_mpeg2_codec_uls[1] :
851
                &mxf_mpeg2_codec_uls[0];
852
        else if (avctx->level == 4) // High
853
            return avctx->gop_size ?
854
                &mxf_mpeg2_codec_uls[5] :
855
                &mxf_mpeg2_codec_uls[4];
856
    } else if (avctx->profile == 0) { // 422
857
        if (avctx->level == 5) // Main
858
            return avctx->gop_size ?
859
                &mxf_mpeg2_codec_uls[3] :
860
                &mxf_mpeg2_codec_uls[2];
861
        else if (avctx->level == 2) // High
862
            return avctx->gop_size ?
863
                &mxf_mpeg2_codec_uls[7] :
864
                &mxf_mpeg2_codec_uls[6];
865
    }
866
    return NULL;
867
}
868
869 7c7c1a76 Baptiste Coudurier
static int mxf_parse_mpeg2_frame(AVFormatContext *s, AVStream *st, AVPacket *pkt)
870
{
871
    MXFStreamContext *sc = st->priv_data;
872
    uint32_t c = -1;
873
    int i;
874
875
    for(i = 0; i < pkt->size - 4; i++) {
876
        c = (c<<8) + pkt->data[i];
877
        if (c == 0x1B5) {
878
            if (i + 2 < pkt->size && (pkt->data[i+1] & 0xf0) == 0x10) { // seq ext
879
                st->codec->profile = pkt->data[i+1] & 0x07;
880
                st->codec->level   = pkt->data[i+2] >> 4;
881 52e5cd2b Baptiste Coudurier
            } else if (i + 5 < pkt->size && (pkt->data[i+1] & 0xf0) == 0x80) { // pict coding ext
882
                sc->interlaced = !(pkt->data[i+5] & 0x80); // progressive frame
883 7c7c1a76 Baptiste Coudurier
                break;
884
            }
885
        }
886
    }
887
    sc->codec_ul = mxf_get_mpeg2_codec_ul(st->codec);
888
    return !!sc->codec_ul;
889
}
890
891 cc812c8c Baptiste Coudurier
static int ff_audio_interleave_init(AVFormatContext *s, const int *samples_per_frame)
892
{
893
    int i;
894
895
    if (!samples_per_frame)
896 59bcc93b Baptiste Coudurier
        return -1;
897 cc812c8c Baptiste Coudurier
898
    for (i = 0; i < s->nb_streams; i++) {
899
        AVStream *st = s->streams[i];
900
        AudioInterleaveContext *aic = st->priv_data;
901
902
        if (st->codec->codec_type == CODEC_TYPE_AUDIO) {
903
            aic->sample_size = (st->codec->channels *
904
                                av_get_bits_per_sample(st->codec->codec_id)) / 8;
905
            if (!aic->sample_size) {
906
                av_log(s, AV_LOG_ERROR, "could not compute sample size\n");
907
                return -1;
908
            }
909
            aic->samples_per_frame = samples_per_frame;
910
            aic->samples = aic->samples_per_frame;
911
912
            av_fifo_init(&aic->fifo, 100 * *aic->samples);
913
        }
914
    }
915
916
    return 0;
917
}
918
919 06466638 Baptiste Coudurier
static void ff_audio_interleave_close(AVFormatContext *s)
920
{
921
    int i;
922
    for (i = 0; i < s->nb_streams; i++) {
923
        AVStream *st = s->streams[i];
924
        AudioInterleaveContext *aic = st->priv_data;
925
926
        if (st->codec->codec_type == CODEC_TYPE_AUDIO)
927
            av_fifo_free(&aic->fifo);
928
    }
929
}
930
931 4e2f346b Baptiste Coudurier
static int mxf_write_header(AVFormatContext *s)
932 2c8d4388 Zhentan Feng
{
933
    MXFContext *mxf = s->priv_data;
934 d4ffc57d Baptiste Coudurier
    int i;
935 37d3e066 Aurelien Jacobs
    uint8_t present[FF_ARRAY_ELEMS(mxf_essence_container_uls)] = {0};
936 cc812c8c Baptiste Coudurier
    const int *samples_per_frame = NULL;
937 17930876 Baptiste Coudurier
938
    for (i = 0; i < s->nb_streams; i++) {
939
        AVStream *st = s->streams[i];
940 e14d374e Baptiste Coudurier
        MXFStreamContext *sc = av_mallocz(sizeof(*sc));
941 17930876 Baptiste Coudurier
        if (!sc)
942
            return AVERROR(ENOMEM);
943
        st->priv_data = sc;
944 cc812c8c Baptiste Coudurier
945
        if (st->codec->codec_type == CODEC_TYPE_VIDEO) {
946
            if (!av_cmp_q(st->codec->time_base, (AVRational){ 1, 25 })) {
947
                samples_per_frame = PAL_samples_per_frame;
948
                mxf->time_base = (AVRational){ 1, 25 };
949
            } else if (!av_cmp_q(st->codec->time_base, (AVRational){ 1001, 30000 })) {
950
                samples_per_frame = NTSC_samples_per_frame;
951
                mxf->time_base = (AVRational){ 1001, 30000 };
952
            } else {
953
                av_log(s, AV_LOG_ERROR, "unsupported video frame rate\n");
954
                return -1;
955
            }
956
        } else if (st->codec->codec_type == CODEC_TYPE_AUDIO) {
957
            if (st->codec->sample_rate != 48000) {
958
                av_log(s, AV_LOG_ERROR, "only 48khz is implemented\n");
959
                return -1;
960
            }
961
        }
962 cdedd878 Baptiste Coudurier
        sc->duration = -1;
963
964 d4ffc57d Baptiste Coudurier
        sc->index = mxf_get_essence_container_ul_index(st->codec->codec_id);
965
        if (sc->index == -1) {
966 a2f55f22 Baptiste Coudurier
            av_log(s, AV_LOG_ERROR, "track %d: could not find essence container ul, "
967
                   "codec not currently supported in container\n", i);
968
            return -1;
969
        }
970 4d418883 Baptiste Coudurier
971 7c7c1a76 Baptiste Coudurier
        sc->codec_ul = &mxf_essence_container_uls[sc->index].codec_ul;
972 4d418883 Baptiste Coudurier
973 d4ffc57d Baptiste Coudurier
        if (!present[sc->index]) {
974
            mxf->essence_containers_indices[mxf->essence_container_count++] = sc->index;
975
            present[sc->index] = 1;
976 b8ad3f78 Baptiste Coudurier
        } else
977 d4ffc57d Baptiste Coudurier
            present[sc->index]++;
978
        memcpy(sc->track_essence_element_key, mxf_essence_container_uls[sc->index].element_ul, 15);
979
        sc->track_essence_element_key[15] = present[sc->index];
980 b8ad3f78 Baptiste Coudurier
        PRINT_KEY(s, "track essence element key", sc->track_essence_element_key);
981 17930876 Baptiste Coudurier
    }
982 9b9466b0 Vitor Sessak
983 cc812c8c Baptiste Coudurier
    for (i = 0; i < s->nb_streams; i++) {
984
        MXFStreamContext *sc = s->streams[i]->priv_data;
985
        av_set_pts_info(s->streams[i], 64, mxf->time_base.num, mxf->time_base.den);
986
        // update element count
987
        sc->track_essence_element_key[13] = present[sc->index];
988
        sc->order = AV_RB32(sc->track_essence_element_key+12);
989
    }
990
991 59bcc93b Baptiste Coudurier
    if (!samples_per_frame)
992
        samples_per_frame = PAL_samples_per_frame;
993
994 cc812c8c Baptiste Coudurier
    if (ff_audio_interleave_init(s, samples_per_frame) < 0)
995
        return -1;
996
997 9b9466b0 Vitor Sessak
    return 0;
998
}
999
1000 4e2f346b Baptiste Coudurier
static int mxf_write_packet(AVFormatContext *s, AVPacket *pkt)
1001 9b0d3e0e Vitor Sessak
{
1002 7c7c1a76 Baptiste Coudurier
    MXFContext *mxf = s->priv_data;
1003 9b0d3e0e Vitor Sessak
    ByteIOContext *pb = s->pb;
1004
    AVStream *st = s->streams[pkt->stream_index];
1005
    MXFStreamContext *sc = st->priv_data;
1006
1007 7c7c1a76 Baptiste Coudurier
    if (!mxf->header_written) {
1008
        if (st->codec->codec_id == CODEC_ID_MPEG2VIDEO) {
1009
            if (!mxf_parse_mpeg2_frame(s, st, pkt)) {
1010
                av_log(s, AV_LOG_ERROR, "could not get mpeg2 profile and level\n");
1011
                return -1;
1012
            }
1013
        }
1014
        mxf_write_partition(s, 1, header_open_partition_key, 1);
1015
        mxf->header_written = 1;
1016
    }
1017
1018 9b0d3e0e Vitor Sessak
    put_buffer(pb, sc->track_essence_element_key, 16); // write key
1019
    klv_encode_ber_length(pb, pkt->size); // write length
1020
    put_buffer(pb, pkt->data, pkt->size); // write value
1021
1022 68f4259c Baptiste Coudurier
    sc->duration = FFMAX(pkt->pts + pkt->duration, sc->duration);
1023
1024 9b0d3e0e Vitor Sessak
    put_flush_packet(pb);
1025
    return 0;
1026
}
1027
1028 4e2f346b Baptiste Coudurier
static int mxf_write_footer(AVFormatContext *s)
1029 9b9466b0 Vitor Sessak
{
1030 cc984060 Baptiste Coudurier
    MXFContext *mxf = s->priv_data;
1031 9b9466b0 Vitor Sessak
    ByteIOContext *pb = s->pb;
1032 a8f6e362 Baptiste Coudurier
1033 cc984060 Baptiste Coudurier
    mxf->footer_partition_offset = url_ftell(pb);
1034
    mxf_write_partition(s, 0, footer_partition_key, 0);
1035
    if (!url_is_streamed(s->pb)) {
1036
        url_fseek(pb, 0, SEEK_SET);
1037
        mxf_write_partition(s, 1, header_closed_partition_key, 1);
1038
    }
1039 06466638 Baptiste Coudurier
1040
    ff_audio_interleave_close(s);
1041
1042 9b9466b0 Vitor Sessak
    mxf_free(s);
1043 2c8d4388 Zhentan Feng
    return 0;
1044
}
1045 9b9466b0 Vitor Sessak
1046 cc812c8c Baptiste Coudurier
static int mxf_interleave_new_audio_packet(AVFormatContext *s, AVPacket *pkt,
1047
                                           int stream_index, int flush)
1048
{
1049
    AVStream *st = s->streams[stream_index];
1050
    AudioInterleaveContext *aic = st->priv_data;
1051
1052
    int size = FFMIN(av_fifo_size(&aic->fifo), *aic->samples * aic->sample_size);
1053
    if (!size || (!flush && size == av_fifo_size(&aic->fifo)))
1054
        return 0;
1055
1056
    av_new_packet(pkt, size);
1057
    av_fifo_read(&aic->fifo, pkt->data, size);
1058
1059
    pkt->dts = pkt->pts = aic->dts;
1060
    pkt->duration = av_rescale_q(*aic->samples,
1061
                                 (AVRational){ 1, st->codec->sample_rate },
1062
                                 st->time_base);
1063
    pkt->stream_index = stream_index;
1064
    aic->dts += pkt->duration;
1065
1066
    aic->samples++;
1067
    if (!*aic->samples)
1068
        aic->samples = aic->samples_per_frame;
1069
1070
    return size;
1071
}
1072
1073 8f819636 Baptiste Coudurier
static int mxf_interleave_get_packet(AVFormatContext *s, AVPacket *out, AVPacket *pkt, int flush)
1074 cc812c8c Baptiste Coudurier
{
1075
    AVPacketList *pktl;
1076
    int stream_count = 0;
1077
    int streams[MAX_STREAMS];
1078
1079
    memset(streams, 0, sizeof(streams));
1080
    pktl = s->packet_buffer;
1081
    while (pktl) {
1082
        //av_log(s, AV_LOG_DEBUG, "show st:%d dts:%lld\n", pktl->pkt.stream_index, pktl->pkt.dts);
1083
        if (!streams[pktl->pkt.stream_index])
1084
            stream_count++;
1085
        streams[pktl->pkt.stream_index]++;
1086
        pktl = pktl->next;
1087
    }
1088
1089
    if (stream_count && (s->nb_streams == stream_count || flush)) {
1090
        pktl = s->packet_buffer;
1091
        *out = pktl->pkt;
1092
        //av_log(s, AV_LOG_DEBUG, "out st:%d dts:%lld\n", (*out).stream_index, (*out).dts);
1093
        s->packet_buffer = pktl->next;
1094
        av_freep(&pktl);
1095
1096
        if (flush && stream_count < s->nb_streams) {
1097
            // purge packet queue
1098
            pktl = s->packet_buffer;
1099
            while (pktl) {
1100
                AVPacketList *next = pktl->next;
1101
                av_free_packet(&pktl->pkt);
1102
                av_freep(&pktl);
1103
                pktl = next;
1104
            }
1105
            s->packet_buffer = NULL;
1106
        }
1107
1108
        return 1;
1109
    } else {
1110
        av_init_packet(out);
1111
        return 0;
1112
    }
1113
}
1114
1115
static int mxf_compare_timestamps(AVFormatContext *s, AVPacket *next, AVPacket *pkt)
1116
{
1117
    AVStream *st  = s->streams[pkt ->stream_index];
1118
    AVStream *st2 = s->streams[next->stream_index];
1119
    MXFStreamContext *sc  = st ->priv_data;
1120
    MXFStreamContext *sc2 = st2->priv_data;
1121
1122
    int64_t left  = st2->time_base.num * (int64_t)st ->time_base.den;
1123
    int64_t right = st ->time_base.num * (int64_t)st2->time_base.den;
1124
1125
    return next->dts * left > pkt->dts * right || // FIXME this can overflow
1126
        (next->dts * left == pkt->dts * right && sc->order < sc2->order);
1127
}
1128
1129
static int mxf_interleave(AVFormatContext *s, AVPacket *out, AVPacket *pkt, int flush)
1130
{
1131
    int i;
1132
1133
    if (pkt) {
1134
        AVStream *st = s->streams[pkt->stream_index];
1135
        AudioInterleaveContext *aic = st->priv_data;
1136
        if (st->codec->codec_type == CODEC_TYPE_AUDIO) {
1137
            av_fifo_generic_write(&aic->fifo, pkt->data, pkt->size, NULL);
1138
        } else {
1139
            // rewrite pts and dts to be decoded time line position
1140
            pkt->pts = pkt->dts = aic->dts;
1141
            aic->dts += pkt->duration;
1142
            ff_interleave_add_packet(s, pkt, mxf_compare_timestamps);
1143
        }
1144 8f819636 Baptiste Coudurier
        pkt = NULL;
1145 cc812c8c Baptiste Coudurier
    }
1146
1147
    for (i = 0; i < s->nb_streams; i++) {
1148
        AVStream *st = s->streams[i];
1149
        if (st->codec->codec_type == CODEC_TYPE_AUDIO) {
1150
            AVPacket new_pkt;
1151
            while (mxf_interleave_new_audio_packet(s, &new_pkt, i, flush))
1152
                ff_interleave_add_packet(s, &new_pkt, mxf_compare_timestamps);
1153
        }
1154
    }
1155
1156 8f819636 Baptiste Coudurier
    return mxf_interleave_get_packet(s, out, pkt, flush);
1157 cc812c8c Baptiste Coudurier
}
1158
1159 b5f46e93 Baptiste Coudurier
AVOutputFormat mxf_muxer = {
1160
    "mxf",
1161
    NULL_IF_CONFIG_SMALL("Material eXchange Format"),
1162
    NULL,
1163
    "mxf",
1164
    sizeof(MXFContext),
1165
    CODEC_ID_PCM_S16LE,
1166
    CODEC_ID_MPEG2VIDEO,
1167 4e2f346b Baptiste Coudurier
    mxf_write_header,
1168
    mxf_write_packet,
1169
    mxf_write_footer,
1170 cc812c8c Baptiste Coudurier
    0,
1171
    NULL,
1172
    mxf_interleave,
1173 b5f46e93 Baptiste Coudurier
};