virtualenv/FFmpeg
1
0
Fork 0
mirror of https://github.com/FFmpeg/FFmpeg.git synced 2024-12-12 19:18:44 +02:00
Code Issues Releases Activity
1f447fd954
FFmpeg/libavformat/mxfenc.c
Andreas Rheinhardt c3222931ab avformat/mxfenc: Simplfy writing padding 
Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@outlook.com>
2021-09-27 07:08:59 +02:00

3291 lines
130 KiB
C
Raw Blame History

/*
* MXF muxer
* Copyright (c) 2008 GUCAS, Zhentan Feng <spyfeng at gmail dot com>
* Copyright (c) 2008 Baptiste Coudurier <baptiste dot coudurier at gmail dot com>
*
* This file is part of FFmpeg.
*
* FFmpeg is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* FFmpeg is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with FFmpeg; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
/*
* signal_standard, color_siting, store_user_comments, sample rate and klv_fill_key version
* fixes sponsored by NOA GmbH
*/
/*
* References
* SMPTE 336M KLV Data Encoding Protocol Using Key-Length-Value
* SMPTE 377M MXF File Format Specifications
* SMPTE 379M MXF Generic Container
* SMPTE 381M Mapping MPEG Streams into the MXF Generic Container
* SMPTE 422M Mapping JPEG 2000 Codestreams into the MXF Generic Container
* SMPTE RP210: SMPTE Metadata Dictionary
* SMPTE RP224: Registry of SMPTE Universal Labels
*/
#include <inttypes.h>
#include <math.h>
#include <time.h>
#include "libavutil/opt.h"
#include "libavutil/random_seed.h"
#include "libavutil/timecode.h"
#include "libavutil/avassert.h"
#include "libavutil/mastering_display_metadata.h"
#include "libavutil/pixdesc.h"
#include "libavutil/time_internal.h"
#include "libavcodec/bytestream.h"
#include "libavcodec/dnxhddata.h"
#include "libavcodec/dv_profile.h"
#include "libavcodec/h264_ps.h"
#include "libavcodec/golomb.h"
#include "libavcodec/internal.h"
#include "libavcodec/packet_internal.h"
#include "avformat.h"
#include "avio_internal.h"
#include "internal.h"
#include "avc.h"
#include "mxf.h"
#include "config.h"
extern const AVOutputFormat ff_mxf_d10_muxer;
extern const AVOutputFormat ff_mxf_opatom_muxer;
#define EDIT_UNITS_PER_BODY 250
#define KAG_SIZE 512
typedef struct MXFIndexEntry {
uint64_t offset;
unsigned slice_offset; ///< offset of audio slice
uint16_t temporal_ref;
uint8_t flags;
} MXFIndexEntry;
typedef struct MXFStreamContext {
int64_t pkt_cnt; ///< pkt counter for muxed packets
UID track_essence_element_key;
int index; ///< index in mxf_essence_container_uls table
const UID *codec_ul;
const UID *container_ul;
int order; ///< interleaving order if dts are equal
int interlaced; ///< whether picture is interlaced
int field_dominance; ///< tff=1, bff=2
int component_depth;
int color_siting;
int signal_standard;
int h_chroma_sub_sample;
int v_chroma_sub_sample;
int temporal_reordering;
AVRational aspect_ratio; ///< display aspect ratio
int closed_gop; ///< gop is closed, used in mpeg-2 frame parsing
int video_bit_rate;
int slice_offset;
int frame_size; ///< frame size in bytes
int seq_closed_gop; ///< all gops in sequence are closed, used in mpeg-2 descriptor
int max_gop; ///< maximum gop size, used by mpeg-2 descriptor
int b_picture_count; ///< maximum number of consecutive b pictures, used in mpeg-2 descriptor
int low_delay; ///< low delay, used in mpeg-2 descriptor
int avc_intra;
} MXFStreamContext;
typedef struct MXFContainerEssenceEntry {
UID container_ul;
UID element_ul;
UID codec_ul;
void (*write_desc)(AVFormatContext *, AVStream *);
} MXFContainerEssenceEntry;
typedef struct MXFPackage {
char *name;
enum MXFMetadataSetType type;
int instance;
struct MXFPackage *ref;
} MXFPackage;
enum ULIndex {
INDEX_MPEG2 = 0,
INDEX_AES3,
INDEX_WAV,
INDEX_D10_VIDEO,
INDEX_D10_AUDIO,
INDEX_DV,
INDEX_DNXHD,
INDEX_JPEG2000,
INDEX_H264,
INDEX_S436M,
INDEX_PRORES,
};
static const struct {
enum AVCodecID id;
enum ULIndex index;
} mxf_essence_mappings[] = {
{ AV_CODEC_ID_MPEG2VIDEO, INDEX_MPEG2 },
{ AV_CODEC_ID_PCM_S24LE, INDEX_AES3 },
{ AV_CODEC_ID_PCM_S16LE, INDEX_AES3 },
{ AV_CODEC_ID_DVVIDEO, INDEX_DV },
{ AV_CODEC_ID_DNXHD, INDEX_DNXHD },
{ AV_CODEC_ID_JPEG2000, INDEX_JPEG2000 },
{ AV_CODEC_ID_H264, INDEX_H264 },
{ AV_CODEC_ID_PRORES, INDEX_PRORES },
{ AV_CODEC_ID_NONE }
};
static void mxf_write_wav_desc(AVFormatContext *s, AVStream *st);
static void mxf_write_aes3_desc(AVFormatContext *s, AVStream *st);
static void mxf_write_mpegvideo_desc(AVFormatContext *s, AVStream *st);
static void mxf_write_h264_desc(AVFormatContext *s, AVStream *st);
static void mxf_write_cdci_desc(AVFormatContext *s, AVStream *st);
static void mxf_write_generic_sound_desc(AVFormatContext *s, AVStream *st);
static void mxf_write_s436m_anc_desc(AVFormatContext *s, AVStream *st);
static const MXFContainerEssenceEntry mxf_essence_container_uls[] = {
{ { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x02,0x0D,0x01,0x03,0x01,0x02,0x04,0x60,0x01 },
{ 0x06,0x0E,0x2B,0x34,0x01,0x02,0x01,0x01,0x0D,0x01,0x03,0x01,0x15,0x01,0x05,0x00 },
{ 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x03,0x04,0x01,0x02,0x02,0x01,0x00,0x00,0x00 },
mxf_write_mpegvideo_desc },
{ { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x0D,0x01,0x03,0x01,0x02,0x06,0x03,0x00 },
{ 0x06,0x0E,0x2B,0x34,0x01,0x02,0x01,0x01,0x0D,0x01,0x03,0x01,0x16,0x01,0x03,0x00 },
{ 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x04,0x02,0x02,0x01,0x00,0x00,0x00,0x00 },
mxf_write_aes3_desc },
{ { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x0D,0x01,0x03,0x01,0x02,0x06,0x01,0x00 },
{ 0x06,0x0E,0x2B,0x34,0x01,0x02,0x01,0x01,0x0D,0x01,0x03,0x01,0x16,0x01,0x01,0x00 },
{ 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x04,0x02,0x02,0x01,0x00,0x00,0x00,0x00 },
mxf_write_wav_desc },
// D-10 Video
{ { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x0D,0x01,0x03,0x01,0x02,0x01,0x01,0x01 },
{ 0x06,0x0E,0x2B,0x34,0x01,0x02,0x01,0x01,0x0D,0x01,0x03,0x01,0x05,0x01,0x01,0x00 },
{ 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x04,0x01,0x02,0x02,0x01,0x02,0x01,0x01 },
mxf_write_cdci_desc },
// D-10 Audio
{ { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x0D,0x01,0x03,0x01,0x02,0x01,0x01,0x01 },
{ 0x06,0x0E,0x2B,0x34,0x01,0x02,0x01,0x01,0x0D,0x01,0x03,0x01,0x06,0x01,0x10,0x00 },
{ 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x04,0x02,0x02,0x01,0x00,0x00,0x00,0x00 },
mxf_write_generic_sound_desc },
// DV
{ { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x0D,0x01,0x03,0x01,0x02,0x02,0x7F,0x01 },
{ 0x06,0x0E,0x2B,0x34,0x01,0x02,0x01,0x01,0x0D,0x01,0x03,0x01,0x18,0x01,0x01,0x00 },
{ 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x04,0x01,0x02,0x02,0x02,0x00,0x00,0x00 },
mxf_write_cdci_desc },
// DNxHD
{ { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x0D,0x01,0x03,0x01,0x02,0x11,0x01,0x00 },
{ 0x06,0x0E,0x2B,0x34,0x01,0x02,0x01,0x01,0x0D,0x01,0x03,0x01,0x15,0x01,0x05,0x00 },
{ 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x0A,0x04,0x01,0x02,0x02,0x71,0x01,0x00,0x00 },
mxf_write_cdci_desc },
// JPEG2000
{ { 0x06,0x0e,0x2b,0x34,0x04,0x01,0x01,0x07,0x0d,0x01,0x03,0x01,0x02,0x0c,0x01,0x00 },
{ 0x06,0x0e,0x2b,0x34,0x01,0x02,0x01,0x01,0x0d,0x01,0x03,0x01,0x15,0x01,0x08,0x00 },
{ 0x06,0x0e,0x2b,0x34,0x04,0x01,0x01,0x07,0x04,0x01,0x02,0x02,0x03,0x01,0x01,0x00 },
mxf_write_cdci_desc },
// H.264
{ { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x0a,0x0D,0x01,0x03,0x01,0x02,0x10,0x60,0x01 },
{ 0x06,0x0E,0x2B,0x34,0x01,0x02,0x01,0x01,0x0D,0x01,0x03,0x01,0x15,0x01,0x05,0x00 },
{ 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x0a,0x04,0x01,0x02,0x02,0x01,0x00,0x00,0x00 },
mxf_write_h264_desc },
// S436M ANC
{ { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x0a,0x0D,0x01,0x03,0x01,0x02,0x0e,0x00,0x00 },
{ 0x06,0x0E,0x2B,0x34,0x01,0x02,0x01,0x01,0x0D,0x01,0x03,0x01,0x17,0x01,0x02,0x00 },
{ 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x0a,0x04,0x01,0x02,0x02,0x01,0x01,0x5C,0x00 },
mxf_write_s436m_anc_desc },
// ProRes
{ { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x0d,0x0d,0x01,0x03,0x01,0x02,0x1c,0x01,0x00 },
{ 0x06,0x0E,0x2B,0x34,0x01,0x02,0x01,0x01,0x0d,0x01,0x03,0x01,0x15,0x01,0x17,0x00 },
{ 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x0d,0x04,0x01,0x02,0x02,0x03,0x06,0x03,0x00 },
mxf_write_cdci_desc },
{ { 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00 },
{ 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00 },
{ 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00 },
NULL },
};
static const UID mxf_d10_codec_uls[] = {
{ 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x04,0x01,0x02,0x02,0x01,0x02,0x01,0x01 }, // D-10 625/50 PAL 50mb/s
{ 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x04,0x01,0x02,0x02,0x01,0x02,0x01,0x02 }, // D-10 525/50 NTSC 50mb/s
{ 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x04,0x01,0x02,0x02,0x01,0x02,0x01,0x03 }, // D-10 625/50 PAL 40mb/s
{ 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x04,0x01,0x02,0x02,0x01,0x02,0x01,0x04 }, // D-10 525/50 NTSC 40mb/s
{ 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x04,0x01,0x02,0x02,0x01,0x02,0x01,0x05 }, // D-10 625/50 PAL 30mb/s
{ 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x04,0x01,0x02,0x02,0x01,0x02,0x01,0x06 }, // D-10 525/50 NTSC 30mb/s
};
static const UID mxf_d10_container_uls[] = {
{ 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x0D,0x01,0x03,0x01,0x02,0x01,0x01,0x01 }, // D-10 625/50 PAL 50mb/s
{ 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x0D,0x01,0x03,0x01,0x02,0x01,0x02,0x01 }, // D-10 525/50 NTSC 50mb/s
{ 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x0D,0x01,0x03,0x01,0x02,0x01,0x03,0x01 }, // D-10 625/50 PAL 40mb/s
{ 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x0D,0x01,0x03,0x01,0x02,0x01,0x04,0x01 }, // D-10 525/50 NTSC 40mb/s
{ 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x0D,0x01,0x03,0x01,0x02,0x01,0x05,0x01 }, // D-10 625/50 PAL 30mb/s
{ 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x0D,0x01,0x03,0x01,0x02,0x01,0x06,0x01 }, // D-10 525/50 NTSC 30mb/s
};
static const uint8_t uuid_base[] = { 0xAD,0xAB,0x44,0x24,0x2f,0x25,0x4d,0xc7,0x92,0xff,0x29,0xbd };
static const uint8_t umid_ul[] = { 0x06,0x0A,0x2B,0x34,0x01,0x01,0x01,0x05,0x01,0x01,0x0D,0x00,0x13 };
/**
* complete key for operation pattern, partitions, and primer pack
*/
static const uint8_t op1a_ul[] = { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x0D,0x01,0x02,0x01,0x01,0x01,0x09,0x00 };
static const uint8_t opatom_ul[] = { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x02,0x0D,0x01,0x02,0x01,0x10,0x03,0x00,0x00 };
static const uint8_t footer_partition_key[] = { 0x06,0x0E,0x2B,0x34,0x02,0x05,0x01,0x01,0x0D,0x01,0x02,0x01,0x01,0x04,0x04,0x00 }; // ClosedComplete
static const uint8_t primer_pack_key[] = { 0x06,0x0E,0x2B,0x34,0x02,0x05,0x01,0x01,0x0D,0x01,0x02,0x01,0x01,0x05,0x01,0x00 };
static const uint8_t index_table_segment_key[] = { 0x06,0x0E,0x2B,0x34,0x02,0x53,0x01,0x01,0x0d,0x01,0x02,0x01,0x01,0x10,0x01,0x00 };
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
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
static const uint8_t klv_fill_key[] = { 0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x03,0x01,0x02,0x10,0x01,0x00,0x00,0x00 };
static const uint8_t body_partition_key[] = { 0x06,0x0E,0x2B,0x34,0x02,0x05,0x01,0x01,0x0D,0x01,0x02,0x01,0x01,0x03,0x04,0x00 }; // ClosedComplete
/**
* partial key for header metadata
*/
static const uint8_t header_metadata_key[] = { 0x06,0x0E,0x2B,0x34,0x02,0x53,0x01,0x01,0x0D,0x01,0x01,0x01,0x01 };
static const uint8_t multiple_desc_ul[] = { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x03,0x0D,0x01,0x03,0x01,0x02,0x7F,0x01,0x00 };
/**
* SMPTE RP210 http://www.smpte-ra.org/mdd/index.html
* https://smpte-ra.org/sites/default/files/Labels.xml
*/
static const MXFLocalTagPair mxf_local_tag_batch[] = {
// preface set
{ 0x3C0A, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x01,0x01,0x01,0x15,0x02,0x00,0x00,0x00,0x00}}, /* Instance UID */
{ 0x3B02, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x07,0x02,0x01,0x10,0x02,0x04,0x00,0x00}}, /* Last Modified Date */
{ 0x3B05, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x03,0x01,0x02,0x01,0x05,0x00,0x00,0x00}}, /* Version */
{ 0x3B07, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x03,0x01,0x02,0x01,0x04,0x00,0x00,0x00}}, /* Object Model Version */
{ 0x3B06, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x06,0x01,0x01,0x04,0x06,0x04,0x00,0x00}}, /* Identifications reference */
{ 0x3B03, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x06,0x01,0x01,0x04,0x02,0x01,0x00,0x00}}, /* Content Storage reference */
{ 0x3B09, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x05,0x01,0x02,0x02,0x03,0x00,0x00,0x00,0x00}}, /* Operational Pattern UL */
{ 0x3B0A, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x05,0x01,0x02,0x02,0x10,0x02,0x01,0x00,0x00}}, /* Essence Containers UL batch */
{ 0x3B0B, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x05,0x01,0x02,0x02,0x10,0x02,0x02,0x00,0x00}}, /* DM Schemes UL batch */
// Identification
{ 0x3C09, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x05,0x20,0x07,0x01,0x01,0x00,0x00,0x00}}, /* This Generation UID */
{ 0x3C01, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x05,0x20,0x07,0x01,0x02,0x01,0x00,0x00}}, /* Company Name */
{ 0x3C02, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x05,0x20,0x07,0x01,0x03,0x01,0x00,0x00}}, /* Product Name */
{ 0x3C03, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x05,0x20,0x07,0x01,0x04,0x00,0x00,0x00}}, /* Product Version */
{ 0x3C04, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x05,0x20,0x07,0x01,0x05,0x01,0x00,0x00}}, /* Version String */
{ 0x3C05, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x05,0x20,0x07,0x01,0x07,0x00,0x00,0x00}}, /* Product ID */
{ 0x3C06, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x07,0x02,0x01,0x10,0x02,0x03,0x00,0x00}}, /* Modification Date */
{ 0x3C07, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x05,0x20,0x07,0x01,0x0A,0x00,0x00,0x00}}, /* Toolkit Version */
{ 0x3C08, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x05,0x20,0x07,0x01,0x06,0x01,0x00,0x00}}, /* Platform */
// Content Storage
{ 0x1901, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x06,0x01,0x01,0x04,0x05,0x01,0x00,0x00}}, /* Package strong reference batch */
{ 0x1902, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x06,0x01,0x01,0x04,0x05,0x02,0x00,0x00}}, /* Package strong reference batch */
// Essence Container Data
{ 0x2701, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x06,0x01,0x01,0x06,0x01,0x00,0x00,0x00}}, /* Linked Package UID */
{ 0x3F07, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x04,0x01,0x03,0x04,0x04,0x00,0x00,0x00,0x00}}, /* BodySID */
// Package
{ 0x4401, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x01,0x01,0x01,0x15,0x10,0x00,0x00,0x00,0x00}}, /* Package UID */
{ 0x4405, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x07,0x02,0x01,0x10,0x01,0x03,0x00,0x00}}, /* Package Creation Date */
{ 0x4404, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x07,0x02,0x01,0x10,0x02,0x05,0x00,0x00}}, /* Package Modified Date */
{ 0x4402, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x01,0x01,0x03,0x03,0x02,0x01,0x00,0x00,0x00}}, /* Package Name */
{ 0x4403, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x06,0x01,0x01,0x04,0x06,0x05,0x00,0x00}}, /* Tracks Strong reference array */
{ 0x4701, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x06,0x01,0x01,0x04,0x02,0x03,0x00,0x00}}, /* Descriptor */
// Track
{ 0x4801, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x01,0x07,0x01,0x01,0x00,0x00,0x00,0x00}}, /* Track ID */
{ 0x4804, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x01,0x04,0x01,0x03,0x00,0x00,0x00,0x00}}, /* Track Number */
{ 0x4B01, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x05,0x30,0x04,0x05,0x00,0x00,0x00,0x00}}, /* Edit Rate */
{ 0x4B02, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x07,0x02,0x01,0x03,0x01,0x03,0x00,0x00}}, /* Origin */
{ 0x4803, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x06,0x01,0x01,0x04,0x02,0x04,0x00,0x00}}, /* Sequence reference */
// Sequence
{ 0x0201, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x04,0x07,0x01,0x00,0x00,0x00,0x00,0x00}}, /* Data Definition UL */
{ 0x0202, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x07,0x02,0x02,0x01,0x01,0x03,0x00,0x00}}, /* Duration */
{ 0x1001, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x06,0x01,0x01,0x04,0x06,0x09,0x00,0x00}}, /* Structural Components reference array */
// Source Clip
{ 0x1201, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x07,0x02,0x01,0x03,0x01,0x04,0x00,0x00}}, /* Start position */
{ 0x1101, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x06,0x01,0x01,0x03,0x01,0x00,0x00,0x00}}, /* SourcePackageID */
{ 0x1102, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x06,0x01,0x01,0x03,0x02,0x00,0x00,0x00}}, /* SourceTrackID */
// Timecode Component
{ 0x1501, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x07,0x02,0x01,0x03,0x01,0x05,0x00,0x00}}, /* Start Time Code */
{ 0x1502, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x04,0x04,0x01,0x01,0x02,0x06,0x00,0x00}}, /* Rounded Time Code Base */
{ 0x1503, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x01,0x04,0x04,0x01,0x01,0x05,0x00,0x00,0x00}}, /* Drop Frame */
// File Descriptor
{ 0x3F01, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x04,0x06,0x01,0x01,0x04,0x06,0x0B,0x00,0x00}}, /* Sub Descriptors reference array */
{ 0x3006, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x05,0x06,0x01,0x01,0x03,0x05,0x00,0x00,0x00}}, /* Linked Track ID */
{ 0x3001, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x01,0x04,0x06,0x01,0x01,0x00,0x00,0x00,0x00}}, /* SampleRate */
{ 0x3002, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x01,0x04,0x06,0x01,0x02,0x00,0x00,0x00,0x00}}, /* ContainerDuration */
{ 0x3004, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x06,0x01,0x01,0x04,0x01,0x02,0x00,0x00}}, /* Essence Container */
// Generic Picture Essence Descriptor
{ 0x320C, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x01,0x04,0x01,0x03,0x01,0x04,0x00,0x00,0x00}}, /* Frame Layout */
{ 0x320D, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x04,0x01,0x03,0x02,0x05,0x00,0x00,0x00}}, /* Video Line Map */
{ 0x3203, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x01,0x04,0x01,0x05,0x02,0x02,0x00,0x00,0x00}}, /* Stored Width */
{ 0x3202, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x01,0x04,0x01,0x05,0x02,0x01,0x00,0x00,0x00}}, /* Stored Height */
{ 0x3216, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x05,0x04,0x01,0x03,0x02,0x08,0x00,0x00,0x00}}, /* Stored F2 Offset */
{ 0x3205, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x01,0x04,0x01,0x05,0x01,0x08,0x00,0x00,0x00}}, /* Sampled Width */
{ 0x3204, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x01,0x04,0x01,0x05,0x01,0x07,0x00,0x00,0x00}}, /* Sampled Height */
{ 0x3206, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x01,0x04,0x01,0x05,0x01,0x09,0x00,0x00,0x00}}, /* Sampled X Offset */
{ 0x3207, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x01,0x04,0x01,0x05,0x01,0x0A,0x00,0x00,0x00}}, /* Sampled Y Offset */
{ 0x3209, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x01,0x04,0x01,0x05,0x01,0x0C,0x00,0x00,0x00}}, /* Display Width */
{ 0x3208, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x01,0x04,0x01,0x05,0x01,0x0B,0x00,0x00,0x00}}, /* Display Height */
{ 0x320A, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x01,0x04,0x01,0x05,0x01,0x0D,0x00,0x00,0x00}}, /* Display X offset */
{ 0x320B, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x01,0x04,0x01,0x05,0x01,0x0E,0x00,0x00,0x00}}, /* Presentation Y offset */
{ 0x3217, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x05,0x04,0x01,0x03,0x02,0x07,0x00,0x00,0x00}}, /* Display F2 offset */
{ 0x320E, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x01,0x04,0x01,0x01,0x01,0x01,0x00,0x00,0x00}}, /* Aspect Ratio */
{ 0x3210, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x04,0x01,0x02,0x01,0x01,0x01,0x02,0x00}}, /* Transfer characteristic */
{ 0x321A, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x04,0x01,0x02,0x01,0x01,0x03,0x01,0x00}}, /* Coding Equations (color space) */
{ 0x3219, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x09,0x04,0x01,0x02,0x01,0x01,0x06,0x01,0x00}}, /* Color Primaries */
{ 0x3213, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x04,0x18,0x01,0x02,0x00,0x00,0x00,0x00}}, /* Image Start Offset */
{ 0x3214, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x04,0x18,0x01,0x03,0x00,0x00,0x00,0x00}}, /* Image End Offset */
{ 0x3201, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x04,0x01,0x06,0x01,0x00,0x00,0x00,0x00}}, /* Picture Essence Coding */
{ 0x3212, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x04,0x01,0x03,0x01,0x06,0x00,0x00,0x00}}, /* Field Dominance (Opt) */
{ 0x3215, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x05,0x04,0x05,0x01,0x13,0x00,0x00,0x00,0x00}}, /* Signal Standard */
// CDCI Picture Essence Descriptor
{ 0x3301, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x04,0x01,0x05,0x03,0x0A,0x00,0x00,0x00}}, /* Component Depth */
{ 0x3302, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x01,0x04,0x01,0x05,0x01,0x05,0x00,0x00,0x00}}, /* Horizontal Subsampling */
{ 0x3308, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x04,0x01,0x05,0x01,0x10,0x00,0x00,0x00}}, /* Vertical Subsampling */
{ 0x3303, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x01,0x04,0x01,0x05,0x01,0x06,0x00,0x00,0x00}}, /* Color Siting */
{ 0x3307, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x04,0x18,0x01,0x04,0x00,0x00,0x00,0x00}}, /* Padding Bits */
{ 0x3304, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x01,0x04,0x01,0x05,0x03,0x03,0x00,0x00,0x00}}, /* Black Ref level */
{ 0x3305, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x01,0x04,0x01,0x05,0x03,0x04,0x00,0x00,0x00}}, /* White Ref level */
{ 0x3306, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x04,0x01,0x05,0x03,0x05,0x00,0x00,0x00}}, /* Color Range */
// Generic Sound Essence Descriptor
{ 0x3D02, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x04,0x04,0x02,0x03,0x01,0x04,0x00,0x00,0x00}}, /* Locked/Unlocked */
{ 0x3D03, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x05,0x04,0x02,0x03,0x01,0x01,0x01,0x00,0x00}}, /* Audio sampling rate */
{ 0x3D04, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x01,0x04,0x02,0x01,0x01,0x03,0x00,0x00,0x00}}, /* Audio Ref Level */
{ 0x3D07, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x05,0x04,0x02,0x01,0x01,0x04,0x00,0x00,0x00}}, /* ChannelCount */
{ 0x3D01, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x04,0x04,0x02,0x03,0x03,0x04,0x00,0x00,0x00}}, /* Quantization bits */
{ 0x3D06, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x04,0x02,0x04,0x02,0x00,0x00,0x00,0x00}}, /* Sound Essence Compression */
// Index Table Segment
{ 0x3F0B, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x05,0x05,0x30,0x04,0x06,0x00,0x00,0x00,0x00}}, /* Index Edit Rate */
{ 0x3F0C, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x05,0x07,0x02,0x01,0x03,0x01,0x0A,0x00,0x00}}, /* Index Start Position */
{ 0x3F0D, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x05,0x07,0x02,0x02,0x01,0x01,0x02,0x00,0x00}}, /* Index Duration */
{ 0x3F05, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x04,0x04,0x06,0x02,0x01,0x00,0x00,0x00,0x00}}, /* Edit Unit Byte Count */
{ 0x3F06, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x04,0x01,0x03,0x04,0x05,0x00,0x00,0x00,0x00}}, /* IndexSID */
{ 0x3F08, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x04,0x04,0x04,0x04,0x01,0x01,0x00,0x00,0x00}}, /* Slice Count */
{ 0x3F09, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x05,0x04,0x04,0x04,0x01,0x06,0x00,0x00,0x00}}, /* Delta Entry Array */
{ 0x3F0A, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x05,0x04,0x04,0x04,0x02,0x05,0x00,0x00,0x00}}, /* Index Entry Array */
// MPEG video Descriptor
{ 0x8000, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x05,0x04,0x01,0x06,0x02,0x01,0x0B,0x00,0x00}}, /* BitRate */
{ 0x8003, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x05,0x04,0x01,0x06,0x02,0x01,0x05,0x00,0x00}}, /* LowDelay */
{ 0x8004, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x05,0x04,0x01,0x06,0x02,0x01,0x06,0x00,0x00}}, /* ClosedGOP */
{ 0x8006, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x05,0x04,0x01,0x06,0x02,0x01,0x08,0x00,0x00}}, /* MaxGOP */
{ 0x8007, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x05,0x04,0x01,0x06,0x02,0x01,0x0A,0x00,0x00}}, /* ProfileAndLevel */
{ 0x8008, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x05,0x04,0x01,0x06,0x02,0x01,0x09,0x00,0x00}}, /* BPictureCount */
// Wave Audio Essence Descriptor
{ 0x3D09, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x05,0x04,0x02,0x03,0x03,0x05,0x00,0x00,0x00}}, /* Average Bytes Per Second */
{ 0x3D0A, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x05,0x04,0x02,0x03,0x02,0x01,0x00,0x00,0x00}}, /* Block Align */
// mxf_user_comments_local_tag
{ 0x4406, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x03,0x02,0x01,0x02,0x0C,0x00,0x00,0x00}}, /* User Comments */
{ 0x5001, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x03,0x02,0x01,0x02,0x09,0x01,0x00,0x00}}, /* Name */
{ 0x5003, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x03,0x02,0x01,0x02,0x0A,0x01,0x00,0x00}}, /* Value */
// mxf_avc_subdescriptor_local_tags
{ 0x8100, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x09,0x06,0x01,0x01,0x04,0x06,0x10,0x00,0x00}}, /* SubDescriptors */
{ 0x8200, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x0E,0x04,0x01,0x06,0x06,0x01,0x0E,0x00,0x00}}, /* AVC Decoding Delay */
{ 0x8201, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x0E,0x04,0x01,0x06,0x06,0x01,0x0A,0x00,0x00}}, /* AVC Profile */
{ 0x8202, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x0E,0x04,0x01,0x06,0x06,0x01,0x0D,0x00,0x00}}, /* AVC Level */
// ff_mxf_mastering_display_local_tags
{ 0x8301, FF_MXF_MasteringDisplayPrimaries },
{ 0x8302, FF_MXF_MasteringDisplayWhitePointChromaticity },
{ 0x8303, FF_MXF_MasteringDisplayMaximumLuminance },
{ 0x8304, FF_MXF_MasteringDisplayMinimumLuminance },
};
#define MXF_NUM_TAGS FF_ARRAY_ELEMS(mxf_local_tag_batch)
typedef struct MXFContext {
AVClass *av_class;
int64_t footer_partition_offset;
int essence_container_count;
AVRational time_base;
int header_written;
MXFIndexEntry *index_entries;
unsigned edit_units_count;
uint64_t timestamp; ///< timestamp, as year(16),month(8),day(8),hour(8),minutes(8),msec/4(8)
uint8_t slice_count; ///< index slice count minus 1 (1 if no audio, 0 otherwise)
int last_indexed_edit_unit;
uint64_t *body_partition_offset;
unsigned body_partitions_count;
int last_key_index; ///< index of last key frame
uint64_t duration;
AVTimecode tc; ///< timecode context
AVStream *timecode_track;
int timecode_base; ///< rounded time code base (25 or 30)
int edit_unit_byte_count; ///< fixed edit unit byte count
int content_package_rate; ///< content package rate in system element, see SMPTE 326M
uint64_t body_offset;
uint32_t instance_number;
uint8_t umid[16]; ///< unique material identifier
int channel_count;
int signal_standard;
uint32_t tagged_value_count;
AVRational audio_edit_rate;
int store_user_comments;
int track_instance_count; // used to generate MXFTrack uuids
int cbr_index; ///< use a constant bitrate index
uint8_t unused_tags[MXF_NUM_TAGS]; ///< local tags that we know will not be used
} MXFContext;
static void mxf_write_uuid(AVIOContext *pb, enum MXFMetadataSetType type, int value)
{
avio_write(pb, uuid_base, 12);
avio_wb16(pb, type);
avio_wb16(pb, value);
}
static void mxf_write_umid(AVFormatContext *s, int type)
{
MXFContext *mxf = s->priv_data;
avio_write(s->pb, umid_ul, 13);
avio_wb24(s->pb, mxf->instance_number);
avio_write(s->pb, mxf->umid, 15);
avio_w8(s->pb, type);
}
static void mxf_write_refs_count(AVIOContext *pb, int ref_count)
{
avio_wb32(pb, ref_count);
avio_wb32(pb, 16);
}
static int klv_ber_length(uint64_t len)
{
if (len < 128)
return 1;
else
return (av_log2(len) >> 3) + 2;
}
static int klv_encode_ber_length(AVIOContext *pb, uint64_t len)
{
// Determine the best BER size
int size = klv_ber_length(len);
if (size == 1) {
//short form
avio_w8(pb, len);
return 1;
}
size --;
// long form
avio_w8(pb, 0x80 + size);
while(size) {
size--;
avio_w8(pb, len >> 8 * size & 0xff);
}
return 0;
}
static void klv_encode_ber4_length(AVIOContext *pb, int len)
{
avio_w8(pb, 0x80 + 3);
avio_wb24(pb, len);
}
static void klv_encode_ber9_length(AVIOContext *pb, uint64_t len)
{
avio_w8(pb, 0x80 + 8);
avio_wb64(pb, len);
}
/*
* Get essence container ul index
*/
static int mxf_get_essence_container_ul_index(enum AVCodecID id)
{
int i;
for (i = 0; mxf_essence_mappings[i].id; i++)
if (mxf_essence_mappings[i].id == id)
return mxf_essence_mappings[i].index;
return -1;
}
static const MXFLocalTagPair* mxf_lookup_local_tag(int tag)
{
for (int i = 0; i < MXF_NUM_TAGS; i++) {
if (mxf_local_tag_batch[i].local_tag == tag) {
return &mxf_local_tag_batch[i];
}
}
// this assert can only be hit during development
av_assert0(0 && "you forgot to add your new tag to mxf_local_tag_batch");
return NULL;
}
static void mxf_mark_tag_unused(MXFContext *mxf, int tag)
{
const MXFLocalTagPair *pair = mxf_lookup_local_tag(tag);
mxf->unused_tags[pair - mxf_local_tag_batch] = 1;
}
static void mxf_write_primer_pack(AVFormatContext *s)
{
MXFContext *mxf = s->priv_data;
AVIOContext *pb = s->pb;
int local_tag_number = MXF_NUM_TAGS, i;
int will_have_avc_tags = 0, will_have_mastering_tags = 0;
for (i = 0; i < s->nb_streams; i++) {
MXFStreamContext *sc = s->streams[i]->priv_data;
if (s->streams[i]->codecpar->codec_id == AV_CODEC_ID_H264 && !sc->avc_intra) {
will_have_avc_tags = 1;
}
if (av_stream_get_side_data(s->streams[i], AV_PKT_DATA_MASTERING_DISPLAY_METADATA, NULL)) {
will_have_mastering_tags = 1;
}
}
if (!mxf->store_user_comments) {
mxf_mark_tag_unused(mxf, 0x4406);
mxf_mark_tag_unused(mxf, 0x5001);
mxf_mark_tag_unused(mxf, 0x5003);
}
if (!will_have_avc_tags) {
mxf_mark_tag_unused(mxf, 0x8100);
mxf_mark_tag_unused(mxf, 0x8200);
mxf_mark_tag_unused(mxf, 0x8201);
mxf_mark_tag_unused(mxf, 0x8202);
}
if (!will_have_mastering_tags) {
mxf_mark_tag_unused(mxf, 0x8301);
mxf_mark_tag_unused(mxf, 0x8302);
mxf_mark_tag_unused(mxf, 0x8303);
mxf_mark_tag_unused(mxf, 0x8304);
}
for (i = 0; i < MXF_NUM_TAGS; i++) {
if (mxf->unused_tags[i]) {
local_tag_number--;
}
}
avio_write(pb, primer_pack_key, 16);
klv_encode_ber_length(pb, local_tag_number * 18 + 8);
avio_wb32(pb, local_tag_number); // local_tag num
avio_wb32(pb, 18); // item size, always 18 according to the specs
for (i = 0; i < MXF_NUM_TAGS; i++) {
if (mxf->unused_tags[i] == 0) {
avio_wb16(pb, mxf_local_tag_batch[i].local_tag);
avio_write(pb, mxf_local_tag_batch[i].uid, 16);
}
}
}
static void mxf_write_local_tag(AVFormatContext *s, int size, int tag)
{
MXFContext *mxf = s->priv_data;
AVIOContext *pb = s->pb;
const MXFLocalTagPair *pair = mxf_lookup_local_tag(tag);
// make sure the tag was not declared unnecessary upfront
av_assert0(mxf->unused_tags[pair - mxf_local_tag_batch] == 0);
avio_wb16(pb, tag);
avio_wb16(pb, size);
}
static void mxf_write_metadata_key(AVIOContext *pb, unsigned int value)
{
avio_write(pb, header_metadata_key, 13);
avio_wb24(pb, value);
}
static const MXFCodecUL *mxf_get_codec_ul_by_id(const MXFCodecUL *uls, int id)
{
while (uls->uid[0]) {
if (id == uls->id)
break;
uls++;
}
return uls;
}
//one EC -> one descriptor. N ECs -> MultipleDescriptor + N descriptors
#define DESCRIPTOR_COUNT(essence_container_count) \
(essence_container_count > 1 ? essence_container_count + 1 : essence_container_count)
static void mxf_write_essence_container_refs(AVFormatContext *s)
{
MXFContext *c = s->priv_data;
AVIOContext *pb = s->pb;
int i;
mxf_write_refs_count(pb, DESCRIPTOR_COUNT(c->essence_container_count));
av_log(s,AV_LOG_DEBUG, "essence container count:%d\n", c->essence_container_count);
for (i = 0; i < s->nb_streams; i++) {
MXFStreamContext *sc = s->streams[i]->priv_data;
// check first track of essence container type and only write it once
if (sc->track_essence_element_key[15] != 0)
continue;
avio_write(pb, *sc->container_ul, 16);
if (c->essence_container_count == 1)
break;
}
if (c->essence_container_count > 1)
avio_write(pb, multiple_desc_ul, 16);
}
static void mxf_write_preface(AVFormatContext *s)
{
MXFContext *mxf = s->priv_data;
AVIOContext *pb = s->pb;
mxf_write_metadata_key(pb, 0x012f00);
PRINT_KEY(s, "preface key", pb->buf_ptr - 16);
klv_encode_ber_length(pb, 138 + 16LL * DESCRIPTOR_COUNT(mxf->essence_container_count));
// write preface set uid
mxf_write_local_tag(s, 16, 0x3C0A);
mxf_write_uuid(pb, Preface, 0);
PRINT_KEY(s, "preface uid", pb->buf_ptr - 16);
// last modified date
mxf_write_local_tag(s, 8, 0x3B02);
avio_wb64(pb, mxf->timestamp);
// write version
mxf_write_local_tag(s, 2, 0x3B05);
avio_wb16(pb, 259); // v1.3
// Object Model Version
mxf_write_local_tag(s, 4, 0x3B07);
avio_wb32(pb, 1);
// write identification_refs
mxf_write_local_tag(s, 16 + 8, 0x3B06);
mxf_write_refs_count(pb, 1);
mxf_write_uuid(pb, Identification, 0);
// write content_storage_refs
mxf_write_local_tag(s, 16, 0x3B03);
mxf_write_uuid(pb, ContentStorage, 0);
// operational pattern
mxf_write_local_tag(s, 16, 0x3B09);
if (s->oformat == &ff_mxf_opatom_muxer)
avio_write(pb, opatom_ul, 16);
else
avio_write(pb, op1a_ul, 16);
// write essence_container_refs
mxf_write_local_tag(s, 8 + 16LL * DESCRIPTOR_COUNT(mxf->essence_container_count), 0x3B0A);
mxf_write_essence_container_refs(s);
// write dm_scheme_refs
mxf_write_local_tag(s, 8, 0x3B0B);
avio_wb64(pb, 0);
}
/*
* Returns the length of the UTF-16 string, in 16-bit characters, that would result
* from decoding the utf-8 string.
*/
static uint64_t mxf_utf16len(const char *utf8_str)
{
const uint8_t *q = utf8_str;
uint64_t size = 0;
while (*q) {
uint32_t ch;
GET_UTF8(ch, *q++, goto invalid;)
if (ch < 0x10000)
size++;
else
size += 2;
continue;
invalid:
av_log(NULL, AV_LOG_ERROR, "Invalid UTF8 sequence in mxf_utf16len\n\n");
}
size += 1;
return size;
}
/*
* Returns the calculated length a local tag containing an utf-8 string as utf-16
*/
static int mxf_utf16_local_tag_length(const char *utf8_str)
{
uint64_t size;
if (!utf8_str)
return 0;
size = mxf_utf16len(utf8_str);
if (size >= UINT16_MAX/2) {
av_log(NULL, AV_LOG_ERROR, "utf16 local tag size %"PRIx64" invalid (too large), ignoring\n", size);
return 0;
}
return 4 + size * 2;
}
/*
* Write a local tag containing an utf-8 string as utf-16
*/
static void mxf_write_local_tag_utf16(AVFormatContext *s, int tag, const char *value)
{
AVIOContext *pb = s->pb;
uint64_t size = mxf_utf16len(value);
if (size >= UINT16_MAX/2) {
av_log(NULL, AV_LOG_ERROR, "utf16 local tag size %"PRIx64" invalid (too large), ignoring\n", size);
return;
}
mxf_write_local_tag(s, size*2, tag);
avio_put_str16be(pb, value);
}
static void store_version(AVFormatContext *s){
AVIOContext *pb = s->pb;
if (s->flags & AVFMT_FLAG_BITEXACT) {
avio_wb16(pb, 0); // major
avio_wb16(pb, 0); // minor
avio_wb16(pb, 0); // tertiary
} else {
avio_wb16(pb, LIBAVFORMAT_VERSION_MAJOR); // major
avio_wb16(pb, LIBAVFORMAT_VERSION_MINOR); // minor
avio_wb16(pb, LIBAVFORMAT_VERSION_MICRO); // tertiary
}
avio_wb16(pb, 0); // patch
avio_wb16(pb, 0); // release
}
#define PLATFORM_IDENT "Lavf " AV_STRINGIFY((OS_NAME))
static void mxf_write_identification(AVFormatContext *s)
{
MXFContext *mxf = s->priv_data;
AVIOContext *pb = s->pb;
AVDictionaryEntry *com_entry = av_dict_get(s->metadata, "company_name", NULL, 0);
AVDictionaryEntry *product_entry = av_dict_get(s->metadata, "product_name", NULL, 0);
AVDictionaryEntry *version_entry = av_dict_get(s->metadata, "product_version", NULL, 0);
const char *company = com_entry ? com_entry->value : "FFmpeg";
const char *product = product_entry ? product_entry->value : s->oformat != &ff_mxf_opatom_muxer ? "OP1a Muxer" : "OPAtom Muxer";
const char *platform = s->flags & AVFMT_FLAG_BITEXACT ? "Lavf" : PLATFORM_IDENT;
const char *version = version_entry ? version_entry->value :
s->flags & AVFMT_FLAG_BITEXACT ? "0.0.0" :
AV_STRINGIFY(LIBAVFORMAT_VERSION);
int length;
mxf_write_metadata_key(pb, 0x013000);
PRINT_KEY(s, "identification key", pb->buf_ptr - 16);
length = 100 +mxf_utf16_local_tag_length(company) +
mxf_utf16_local_tag_length(product) +
mxf_utf16_local_tag_length(platform) +
mxf_utf16_local_tag_length(version);
klv_encode_ber_length(pb, length);
// write uid
mxf_write_local_tag(s, 16, 0x3C0A);
mxf_write_uuid(pb, Identification, 0);
PRINT_KEY(s, "identification uid", pb->buf_ptr - 16);
// write generation uid
mxf_write_local_tag(s, 16, 0x3C09);
mxf_write_uuid(pb, Identification, 1);
mxf_write_local_tag_utf16(s, 0x3C01, company); // Company Name
mxf_write_local_tag_utf16(s, 0x3C02, product); // Product Name
mxf_write_local_tag(s, 10, 0x3C03); // Product Version
store_version(s);
mxf_write_local_tag_utf16(s, 0x3C04, version); // Version String
mxf_write_local_tag_utf16(s, 0x3C08, platform); // Platform
// write product uid
mxf_write_local_tag(s, 16, 0x3C05);
mxf_write_uuid(pb, Identification, 2);
// modification date
mxf_write_local_tag(s, 8, 0x3C06);
avio_wb64(pb, mxf->timestamp);
mxf_write_local_tag(s, 10, 0x3C07); // Toolkit Version
store_version(s);
}
static void mxf_write_content_storage(AVFormatContext *s, MXFPackage *packages, int package_count)
{
AVIOContext *pb = s->pb;
int i;
mxf_write_metadata_key(pb, 0x011800);
PRINT_KEY(s, "content storage key", pb->buf_ptr - 16);
klv_encode_ber_length(pb, 60 + (16 * package_count));
// write uid
mxf_write_local_tag(s, 16, 0x3C0A);
mxf_write_uuid(pb, ContentStorage, 0);
PRINT_KEY(s, "content storage uid", pb->buf_ptr - 16);
// write package reference
mxf_write_local_tag(s, 16 * package_count + 8, 0x1901);
mxf_write_refs_count(pb, package_count);
for (i = 0; i < package_count; i++) {
mxf_write_uuid(pb, packages[i].type, packages[i].instance);
}
// write essence container data
mxf_write_local_tag(s, 8 + 16, 0x1902);
mxf_write_refs_count(pb, 1);
mxf_write_uuid(pb, EssenceContainerData, 0);
}
static void mxf_write_track(AVFormatContext *s, AVStream *st, MXFPackage *package)
{
MXFContext *mxf = s->priv_data;
AVIOContext *pb = s->pb;
MXFStreamContext *sc = st->priv_data;
mxf_write_metadata_key(pb, 0x013b00);
PRINT_KEY(s, "track key", pb->buf_ptr - 16);
klv_encode_ber_length(pb, 80);
// write track uid
mxf_write_local_tag(s, 16, 0x3C0A);
mxf_write_uuid(pb, Track, mxf->track_instance_count);
PRINT_KEY(s, "track uid", pb->buf_ptr - 16);
// write track id
mxf_write_local_tag(s, 4, 0x4801);
avio_wb32(pb, st->index+2);
// write track number
mxf_write_local_tag(s, 4, 0x4804);
if (package->type == MaterialPackage)
avio_wb32(pb, 0); // track number of material package is 0
else
avio_write(pb, sc->track_essence_element_key + 12, 4);
// write edit rate
mxf_write_local_tag(s, 8, 0x4B01);
if (st == mxf->timecode_track && s->oformat == &ff_mxf_opatom_muxer) {
avio_wb32(pb, mxf->tc.rate.num);
avio_wb32(pb, mxf->tc.rate.den);
} else {
avio_wb32(pb, mxf->time_base.den);
avio_wb32(pb, mxf->time_base.num);
}
// write origin
mxf_write_local_tag(s, 8, 0x4B02);
avio_wb64(pb, 0);
// write sequence refs
mxf_write_local_tag(s, 16, 0x4803);
mxf_write_uuid(pb, Sequence, mxf->track_instance_count);
}
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 };
static void mxf_write_common_fields(AVFormatContext *s, AVStream *st)
{
MXFContext *mxf = s->priv_data;
AVIOContext *pb = s->pb;
// find data define uls
mxf_write_local_tag(s, 16, 0x0201);
if (st == mxf->timecode_track)
avio_write(pb, smpte_12m_timecode_track_data_ul, 16);
else {
const MXFCodecUL *data_def_ul = mxf_get_codec_ul_by_id(ff_mxf_data_definition_uls, st->codecpar->codec_type);
avio_write(pb, data_def_ul->uid, 16);
}
// write duration
mxf_write_local_tag(s, 8, 0x0202);
if (st != mxf->timecode_track && s->oformat == &ff_mxf_opatom_muxer && st->codecpar->codec_type == AVMEDIA_TYPE_AUDIO) {
avio_wb64(pb, mxf->body_offset / mxf->edit_unit_byte_count);
} else {
avio_wb64(pb, mxf->duration);
}
}
static void mxf_write_sequence(AVFormatContext *s, AVStream *st, MXFPackage *package)
{
MXFContext *mxf = s->priv_data;
AVIOContext *pb = s->pb;
enum MXFMetadataSetType component;
mxf_write_metadata_key(pb, 0x010f00);
PRINT_KEY(s, "sequence key", pb->buf_ptr - 16);
klv_encode_ber_length(pb, 80);
mxf_write_local_tag(s, 16, 0x3C0A);
mxf_write_uuid(pb, Sequence, mxf->track_instance_count);
PRINT_KEY(s, "sequence uid", pb->buf_ptr - 16);
mxf_write_common_fields(s, st);
// write structural component
mxf_write_local_tag(s, 16 + 8, 0x1001);
mxf_write_refs_count(pb, 1);
if (st == mxf->timecode_track)
component = TimecodeComponent;
else
component = SourceClip;
mxf_write_uuid(pb, component, mxf->track_instance_count);
}
static void mxf_write_timecode_component(AVFormatContext *s, AVStream *st, MXFPackage *package)
{
MXFContext *mxf = s->priv_data;
AVIOContext *pb = s->pb;
mxf_write_metadata_key(pb, 0x011400);
klv_encode_ber_length(pb, 75);
// UID
mxf_write_local_tag(s, 16, 0x3C0A);
mxf_write_uuid(pb, TimecodeComponent, mxf->track_instance_count);
mxf_write_common_fields(s, st);
// Start Time Code
mxf_write_local_tag(s, 8, 0x1501);
avio_wb64(pb, mxf->tc.start);
// Rounded Time Code Base
mxf_write_local_tag(s, 2, 0x1502);
avio_wb16(pb, mxf->timecode_base);
// Drop Frame
mxf_write_local_tag(s, 1, 0x1503);
avio_w8(pb, !!(mxf->tc.flags & AV_TIMECODE_FLAG_DROPFRAME));
}
static void mxf_write_structural_component(AVFormatContext *s, AVStream *st, MXFPackage *package)
{
MXFContext *mxf = s->priv_data;
AVIOContext *pb = s->pb;
mxf_write_metadata_key(pb, 0x011100);
PRINT_KEY(s, "sturctural component key", pb->buf_ptr - 16);
klv_encode_ber_length(pb, 108);
// write uid
mxf_write_local_tag(s, 16, 0x3C0A);
mxf_write_uuid(pb, SourceClip, mxf->track_instance_count);
PRINT_KEY(s, "structural component uid", pb->buf_ptr - 16);
mxf_write_common_fields(s, st);
// write start_position
mxf_write_local_tag(s, 8, 0x1201);
avio_wb64(pb, 0);
// write source package uid, end of the reference
mxf_write_local_tag(s, 32, 0x1101);
if (!package->ref) {
ffio_fill(pb, 0, 32);
} else
mxf_write_umid(s, package->ref->instance);
// write source track id
mxf_write_local_tag(s, 4, 0x1102);
if (package->type == SourcePackage && !package->ref)
avio_wb32(pb, 0);
else
avio_wb32(pb, st->index+2);
}
static void mxf_write_tape_descriptor(AVFormatContext *s)
{
AVIOContext *pb = s->pb;
mxf_write_metadata_key(pb, 0x012e00);
PRINT_KEY(s, "tape descriptor key", pb->buf_ptr - 16);
klv_encode_ber_length(pb, 20);
mxf_write_local_tag(s, 16, 0x3C0A);
mxf_write_uuid(pb, TapeDescriptor, 0);
PRINT_KEY(s, "tape_desc uid", pb->buf_ptr - 16);
}
static void mxf_write_multi_descriptor(AVFormatContext *s)
{
MXFContext *mxf = s->priv_data;
AVIOContext *pb = s->pb;
const uint8_t *ul;
int i;
mxf_write_metadata_key(pb, 0x014400);
PRINT_KEY(s, "multiple descriptor key", pb->buf_ptr - 16);
klv_encode_ber_length(pb, 64 + 16LL * s->nb_streams);
mxf_write_local_tag(s, 16, 0x3C0A);
mxf_write_uuid(pb, MultipleDescriptor, 0);
PRINT_KEY(s, "multi_desc uid", pb->buf_ptr - 16);
// write sample rate
mxf_write_local_tag(s, 8, 0x3001);
avio_wb32(pb, mxf->time_base.den);
avio_wb32(pb, mxf->time_base.num);
// write essence container ul
mxf_write_local_tag(s, 16, 0x3004);
if (mxf->essence_container_count > 1)
ul = multiple_desc_ul;
else {
MXFStreamContext *sc = s->streams[0]->priv_data;
ul = *sc->container_ul;
}
avio_write(pb, ul, 16);
// write sub descriptor refs
mxf_write_local_tag(s, s->nb_streams * 16 + 8, 0x3F01);
mxf_write_refs_count(pb, s->nb_streams);
for (i = 0; i < s->nb_streams; i++)
mxf_write_uuid(pb, SubDescriptor, i);
}
static int64_t mxf_write_generic_desc(AVFormatContext *s, AVStream *st, const UID key)
{
MXFContext *mxf = s->priv_data;
MXFStreamContext *sc = st->priv_data;
AVIOContext *pb = s->pb;
int64_t pos;
avio_write(pb, key, 16);
klv_encode_ber4_length(pb, 0);
pos = avio_tell(pb);
mxf_write_local_tag(s, 16, 0x3C0A);
mxf_write_uuid(pb, SubDescriptor, st->index);
mxf_write_local_tag(s, 4, 0x3006);
avio_wb32(pb, st->index+2);
mxf_write_local_tag(s, 8, 0x3001);
if (s->oformat == &ff_mxf_d10_muxer) {
avio_wb32(pb, mxf->time_base.den);
avio_wb32(pb, mxf->time_base.num);
} else {
if (st->codecpar->codec_id == AV_CODEC_ID_PCM_S16LE ||
st->codecpar->codec_id == AV_CODEC_ID_PCM_S24LE) {
avio_wb32(pb, st->codecpar->sample_rate);
avio_wb32(pb, 1);
} else {
avio_wb32(pb, mxf->time_base.den);
avio_wb32(pb, mxf->time_base.num);
}
}
mxf_write_local_tag(s, 16, 0x3004);
avio_write(pb, *sc->container_ul, 16);
return pos;
}
static const UID mxf_s436m_anc_descriptor_key = { 0x06,0x0e,0x2b,0x34,0x02,0x53,0x01,0x01,0x0d,0x01,0x01,0x01,0x01,0x01,0x5c,0x00 };
static const UID mxf_mpegvideo_descriptor_key = { 0x06,0x0E,0x2B,0x34,0x02,0x53,0x01,0x01,0x0d,0x01,0x01,0x01,0x01,0x01,0x51,0x00 };
static const UID mxf_wav_descriptor_key = { 0x06,0x0E,0x2B,0x34,0x02,0x53,0x01,0x01,0x0d,0x01,0x01,0x01,0x01,0x01,0x48,0x00 };
static const UID mxf_aes3_descriptor_key = { 0x06,0x0E,0x2B,0x34,0x02,0x53,0x01,0x01,0x0d,0x01,0x01,0x01,0x01,0x01,0x47,0x00 };
static const UID mxf_cdci_descriptor_key = { 0x06,0x0E,0x2B,0x34,0x02,0x53,0x01,0x01,0x0D,0x01,0x01,0x01,0x01,0x01,0x28,0x00 };
static const UID mxf_generic_sound_descriptor_key = { 0x06,0x0E,0x2B,0x34,0x02,0x53,0x01,0x01,0x0D,0x01,0x01,0x01,0x01,0x01,0x42,0x00 };
static const UID mxf_avc_subdescriptor_key = { 0x06,0x0E,0x2B,0x34,0x02,0x53,0x01,0x01,0x0d,0x01,0x01,0x01,0x01,0x01,0x6E,0x00 };
static inline uint16_t rescale_mastering_chroma(AVRational q)
{
return av_clip_uint16(av_rescale(q.num, FF_MXF_MASTERING_CHROMA_DEN, q.den));
}
static inline uint32_t rescale_mastering_luma(AVRational q)
{
return av_rescale(q.num, FF_MXF_MASTERING_LUMA_DEN, q.den);
}
static int64_t mxf_write_cdci_common(AVFormatContext *s, AVStream *st, const UID key)
{
MXFStreamContext *sc = st->priv_data;
AVIOContext *pb = s->pb;
int stored_width = 0;
int stored_height = (st->codecpar->height+15)/16*16;
int display_height;
int f1, f2;
const MXFCodecUL *color_primaries_ul;
const MXFCodecUL *color_trc_ul;
const MXFCodecUL *color_space_ul;
int64_t pos = mxf_write_generic_desc(s, st, key);
uint8_t *side_data;
color_primaries_ul = mxf_get_codec_ul_by_id(ff_mxf_color_primaries_uls, st->codecpar->color_primaries);
color_trc_ul = mxf_get_codec_ul_by_id(ff_mxf_color_trc_uls, st->codecpar->color_trc);
color_space_ul = mxf_get_codec_ul_by_id(ff_mxf_color_space_uls, st->codecpar->color_space);
if (st->codecpar->codec_id == AV_CODEC_ID_DVVIDEO) {
if (st->codecpar->height == 1080)
stored_width = 1920;
else if (st->codecpar->height == 720)
stored_width = 1280;
}
if (!stored_width)
stored_width = (st->codecpar->width+15)/16*16;
mxf_write_local_tag(s, 4, 0x3203);
avio_wb32(pb, stored_width);
mxf_write_local_tag(s, 4, 0x3202);
avio_wb32(pb, stored_height>>sc->interlaced);
if (s->oformat == &ff_mxf_d10_muxer) {
//Stored F2 Offset
mxf_write_local_tag(s, 4, 0x3216);
avio_wb32(pb, 0);
//Image Start Offset
mxf_write_local_tag(s, 4, 0x3213);
avio_wb32(pb, 0);
//Image End Offset
mxf_write_local_tag(s, 4, 0x3214);
avio_wb32(pb, 0);
}
//Sampled width
mxf_write_local_tag(s, 4, 0x3205);
avio_wb32(pb, stored_width);
//Samples height
mxf_write_local_tag(s, 4, 0x3204);
avio_wb32(pb, st->codecpar->height>>sc->interlaced);
//Sampled X Offset
mxf_write_local_tag(s, 4, 0x3206);
avio_wb32(pb, 0);
//Sampled Y Offset
mxf_write_local_tag(s, 4, 0x3207);
avio_wb32(pb, 0);
mxf_write_local_tag(s, 4, 0x3209);
avio_wb32(pb, stored_width);
if (st->codecpar->height == 608) // PAL + VBI
display_height = 576;
else if (st->codecpar->height == 512) // NTSC + VBI
display_height = 486;
else
display_height = st->codecpar->height;
mxf_write_local_tag(s, 4, 0x3208);
avio_wb32(pb, display_height>>sc->interlaced);
// display X offset
mxf_write_local_tag(s, 4, 0x320A);
avio_wb32(pb, 0);
// display Y offset
mxf_write_local_tag(s, 4, 0x320B);
avio_wb32(pb, (st->codecpar->height - display_height)>>sc->interlaced);
if (sc->interlaced) {
//Display F2 Offset
mxf_write_local_tag(s, 4, 0x3217);
avio_wb32(pb, -((st->codecpar->height - display_height)&1));
}
// component depth
mxf_write_local_tag(s, 4, 0x3301);
avio_wb32(pb, sc->component_depth);
// horizontal subsampling
mxf_write_local_tag(s, 4, 0x3302);
avio_wb32(pb, sc->h_chroma_sub_sample);
// vertical subsampling
mxf_write_local_tag(s, 4, 0x3308);
avio_wb32(pb, sc->v_chroma_sub_sample);
// color siting
mxf_write_local_tag(s, 1, 0x3303);
avio_w8(pb, sc->color_siting);
// Padding Bits
mxf_write_local_tag(s, 2, 0x3307);
avio_wb16(pb, 0);
if (st->codecpar->color_range != AVCOL_RANGE_UNSPECIFIED) {
int black = 0,
white = (1<<sc->component_depth) - 1,
color = (1<<sc->component_depth);
if (st->codecpar->color_range == AVCOL_RANGE_MPEG) {
black = 1 << (sc->component_depth - 4);
white = 235 << (sc->component_depth - 8);
color = (14 << (sc->component_depth - 4)) + 1;
}
mxf_write_local_tag(s, 4, 0x3304);
avio_wb32(pb, black);
mxf_write_local_tag(s, 4, 0x3305);
avio_wb32(pb, white);
mxf_write_local_tag(s, 4, 0x3306);
avio_wb32(pb, color);
}
if (sc->signal_standard) {
mxf_write_local_tag(s, 1, 0x3215);
avio_w8(pb, sc->signal_standard);
}
// frame layout
mxf_write_local_tag(s, 1, 0x320C);
avio_w8(pb, sc->interlaced);
// video line map
switch (st->codecpar->height) {
case 576: f1 = 23; f2 = st->codecpar->codec_id == AV_CODEC_ID_DVVIDEO ? 335 : 336; break;
case 608: f1 = 7; f2 = 320; break;
case 480: f1 = 20; f2 = st->codecpar->codec_id == AV_CODEC_ID_DVVIDEO ? 285 : 283; break;
case 512: f1 = 7; f2 = 270; break;
case 720: f1 = 26; f2 = 0; break; // progressive
case 1080: f1 = 21; f2 = 584; break;
default: f1 = 0; f2 = 0; break;
}
if (!sc->interlaced && f2) {
f2 = 0;
f1 *= 2;
}
mxf_write_local_tag(s, 16, 0x320D);
avio_wb32(pb, 2);
avio_wb32(pb, 4);
avio_wb32(pb, f1);
avio_wb32(pb, f2);
mxf_write_local_tag(s, 8, 0x320E);
avio_wb32(pb, sc->aspect_ratio.num);
avio_wb32(pb, sc->aspect_ratio.den);
if (color_primaries_ul->uid[0]) {
mxf_write_local_tag(s, 16, 0x3219);
avio_write(pb, color_primaries_ul->uid, 16);
};
if (color_trc_ul->uid[0]) {
mxf_write_local_tag(s, 16, 0x3210);
avio_write(pb, color_trc_ul->uid, 16);
};
if (color_space_ul->uid[0]) {
mxf_write_local_tag(s, 16, 0x321A);
avio_write(pb, color_space_ul->uid, 16);
};
mxf_write_local_tag(s, 16, 0x3201);
avio_write(pb, *sc->codec_ul, 16);
// Mastering Display metadata
side_data = av_stream_get_side_data(st, AV_PKT_DATA_MASTERING_DISPLAY_METADATA, NULL);
if (side_data) {
const AVMasteringDisplayMetadata *metadata = (const AVMasteringDisplayMetadata*)side_data;
if (metadata->has_primaries) {
mxf_write_local_tag(s, 12, 0x8301);
avio_wb16(pb, rescale_mastering_chroma(metadata->display_primaries[0][0]));
avio_wb16(pb, rescale_mastering_chroma(metadata->display_primaries[0][1]));
avio_wb16(pb, rescale_mastering_chroma(metadata->display_primaries[1][0]));
avio_wb16(pb, rescale_mastering_chroma(metadata->display_primaries[1][1]));
avio_wb16(pb, rescale_mastering_chroma(metadata->display_primaries[2][0]));
avio_wb16(pb, rescale_mastering_chroma(metadata->display_primaries[2][1]));
mxf_write_local_tag(s, 4, 0x8302);
avio_wb16(pb, rescale_mastering_chroma(metadata->white_point[0]));
avio_wb16(pb, rescale_mastering_chroma(metadata->white_point[1]));
} else {
av_log(NULL, AV_LOG_VERBOSE, "Not writing mastering display primaries. Missing data.\n");
}
if (metadata->has_luminance) {
mxf_write_local_tag(s, 4, 0x8303);
avio_wb32(pb, rescale_mastering_luma(metadata->max_luminance));
mxf_write_local_tag(s, 4, 0x8304);
avio_wb32(pb, rescale_mastering_luma(metadata->min_luminance));
} else {
av_log(NULL, AV_LOG_VERBOSE, "Not writing mastering display luminances. Missing data.\n");
}
}
if (sc->interlaced && sc->field_dominance) {
mxf_write_local_tag(s, 1, 0x3212);
avio_w8(pb, sc->field_dominance);
}
if (st->codecpar->codec_id == AV_CODEC_ID_H264 && !sc->avc_intra) {
// write avc sub descriptor ref
mxf_write_local_tag(s, 8 + 16, 0x8100);
mxf_write_refs_count(pb, 1);
mxf_write_uuid(pb, AVCSubDescriptor, 0);
}
return pos;
}
static void mxf_update_klv_size(AVIOContext *pb, int64_t pos)
{
int64_t cur_pos = avio_tell(pb);
int size = cur_pos - pos;
avio_seek(pb, pos - 4, SEEK_SET);
klv_encode_ber4_length(pb, size);
avio_seek(pb, cur_pos, SEEK_SET);
}
static void mxf_write_avc_subdesc(AVFormatContext *s, AVStream *st)
{
AVIOContext *pb = s->pb;
int64_t pos;
avio_write(pb, mxf_avc_subdescriptor_key, 16);
klv_encode_ber4_length(pb, 0);
pos = avio_tell(pb);
mxf_write_local_tag(s, 16, 0x3C0A);
mxf_write_uuid(pb, AVCSubDescriptor, 0);
mxf_write_local_tag(s, 1, 0x8200);
avio_w8(pb, 0xFF); // AVC Decoding Delay, unknown
mxf_write_local_tag(s, 1, 0x8201);
avio_w8(pb, st->codecpar->profile); // AVC Profile
mxf_write_local_tag(s, 1, 0x8202);
avio_w8(pb, st->codecpar->level); // AVC Level
mxf_update_klv_size(s->pb, pos);
}
static void mxf_write_cdci_desc(AVFormatContext *s, AVStream *st)
{
int64_t pos = mxf_write_cdci_common(s, st, mxf_cdci_descriptor_key);
mxf_update_klv_size(s->pb, pos);
if (st->codecpar->codec_id == AV_CODEC_ID_H264) {
mxf_write_avc_subdesc(s, st);
}
}
static void mxf_write_h264_desc(AVFormatContext *s, AVStream *st)
{
MXFStreamContext *sc = st->priv_data;
if (sc->avc_intra) {
mxf_write_mpegvideo_desc(s, st);
} else {
int64_t pos = mxf_write_cdci_common(s, st, mxf_cdci_descriptor_key);
mxf_update_klv_size(s->pb, pos);
mxf_write_avc_subdesc(s, st);
}
}
static void mxf_write_s436m_anc_desc(AVFormatContext *s, AVStream *st)
{
int64_t pos = mxf_write_generic_desc(s, st, mxf_s436m_anc_descriptor_key);
mxf_update_klv_size(s->pb, pos);
}
static void mxf_write_mpegvideo_desc(AVFormatContext *s, AVStream *st)
{
AVIOContext *pb = s->pb;
MXFStreamContext *sc = st->priv_data;
int profile_and_level = (st->codecpar->profile<<4) | st->codecpar->level;
int64_t pos = mxf_write_cdci_common(s, st, mxf_mpegvideo_descriptor_key);
if (st->codecpar->codec_id != AV_CODEC_ID_H264) {
// bit rate
mxf_write_local_tag(s, 4, 0x8000);
avio_wb32(pb, sc->video_bit_rate);
// profile and level
mxf_write_local_tag(s, 1, 0x8007);
if (!st->codecpar->profile)
profile_and_level |= 0x80; // escape bit
avio_w8(pb, profile_and_level);
// low delay
mxf_write_local_tag(s, 1, 0x8003);
avio_w8(pb, sc->low_delay);
// closed gop
mxf_write_local_tag(s, 1, 0x8004);
avio_w8(pb, sc->seq_closed_gop);
// max gop
mxf_write_local_tag(s, 2, 0x8006);
avio_wb16(pb, sc->max_gop);
// b picture count
mxf_write_local_tag(s, 2, 0x8008);
avio_wb16(pb, sc->b_picture_count);
}
mxf_update_klv_size(pb, pos);
}
static int64_t mxf_write_generic_sound_common(AVFormatContext *s, AVStream *st, const UID key)
{
AVIOContext *pb = s->pb;
MXFContext *mxf = s->priv_data;
int show_warnings = !mxf->footer_partition_offset;
int64_t pos = mxf_write_generic_desc(s, st, key);
if (s->oformat == &ff_mxf_opatom_muxer) {
mxf_write_local_tag(s, 8, 0x3002);
avio_wb64(pb, mxf->body_offset / mxf->edit_unit_byte_count);
}
// audio locked
mxf_write_local_tag(s, 1, 0x3D02);
avio_w8(pb, 1);
// write audio sampling rate
mxf_write_local_tag(s, 8, 0x3D03);
avio_wb32(pb, st->codecpar->sample_rate);
avio_wb32(pb, 1);
if (s->oformat == &ff_mxf_d10_muxer) {
mxf_write_local_tag(s, 1, 0x3D04);
avio_w8(pb, 0);
}
mxf_write_local_tag(s, 4, 0x3D07);
if (mxf->channel_count == -1) {
if (show_warnings && (s->oformat == &ff_mxf_d10_muxer) && (st->codecpar->channels != 4) && (st->codecpar->channels != 8))
av_log(s, AV_LOG_WARNING, "the number of audio channels shall be 4 or 8 : the output will not comply to MXF D-10 specs, use -d10_channelcount to fix this\n");
avio_wb32(pb, st->codecpar->channels);
} else if (s->oformat == &ff_mxf_d10_muxer) {
if (show_warnings && (mxf->channel_count < st->codecpar->channels))
av_log(s, AV_LOG_WARNING, "d10_channelcount < actual number of audio channels : some channels will be discarded\n");
if (show_warnings && (mxf->channel_count != 4) && (mxf->channel_count != 8))
av_log(s, AV_LOG_WARNING, "d10_channelcount shall be set to 4 or 8 : the output will not comply to MXF D-10 specs\n");
avio_wb32(pb, mxf->channel_count);
} else {
avio_wb32(pb, st->codecpar->channels);
}
mxf_write_local_tag(s, 4, 0x3D01);
avio_wb32(pb, av_get_bits_per_sample(st->codecpar->codec_id));
return pos;
}
static int64_t mxf_write_wav_common(AVFormatContext *s, AVStream *st, const UID key)
{
AVIOContext *pb = s->pb;
int64_t pos = mxf_write_generic_sound_common(s, st, key);
mxf_write_local_tag(s, 2, 0x3D0A);
avio_wb16(pb, st->codecpar->block_align);
// avg bytes per sec
mxf_write_local_tag(s, 4, 0x3D09);
avio_wb32(pb, st->codecpar->block_align*st->codecpar->sample_rate);
return pos;
}
static void mxf_write_wav_desc(AVFormatContext *s, AVStream *st)
{
int64_t pos = mxf_write_wav_common(s, st, mxf_wav_descriptor_key);
mxf_update_klv_size(s->pb, pos);
}
static void mxf_write_aes3_desc(AVFormatContext *s, AVStream *st)
{
int64_t pos = mxf_write_wav_common(s, st, mxf_aes3_descriptor_key);
mxf_update_klv_size(s->pb, pos);
}
static void mxf_write_generic_sound_desc(AVFormatContext *s, AVStream *st)
{
int64_t pos = mxf_write_generic_sound_common(s, st, mxf_generic_sound_descriptor_key);
mxf_update_klv_size(s->pb, pos);
}
static const uint8_t mxf_indirect_value_utf16le[] = { 0x4c,0x00,0x02,0x10,0x01,0x00,0x00,0x00,0x00,0x06,0x0e,0x2b,0x34,0x01,0x04,0x01,0x01 };
static int mxf_write_tagged_value(AVFormatContext *s, const char* name, const char* value)
{
MXFContext *mxf = s->priv_data;
AVIOContext *pb = s->pb;
int name_size = mxf_utf16_local_tag_length(name);
int indirect_value_size = 13 + mxf_utf16_local_tag_length(value);
if (!name_size || indirect_value_size == 13)
return 1;
mxf_write_metadata_key(pb, 0x013f00);
klv_encode_ber_length(pb, 24 + name_size + indirect_value_size);
// write instance UID
mxf_write_local_tag(s, 16, 0x3C0A);
mxf_write_uuid(pb, TaggedValue, mxf->tagged_value_count);
// write name
mxf_write_local_tag_utf16(s, 0x5001, name); // Name
// write indirect value
mxf_write_local_tag(s, indirect_value_size, 0x5003);
avio_write(pb, mxf_indirect_value_utf16le, 17);
avio_put_str16le(pb, value);
mxf->tagged_value_count++;
return 0;
}
static int mxf_write_user_comments(AVFormatContext *s, const AVDictionary *m)
{
MXFContext *mxf = s->priv_data;
AVDictionaryEntry *t = NULL;
int count = 0;
while ((t = av_dict_get(m, "comment_", t, AV_DICT_IGNORE_SUFFIX))) {
if (mxf->tagged_value_count >= UINT16_MAX) {
av_log(s, AV_LOG_ERROR, "too many tagged values, ignoring remaining\n");
return count;
}
if (mxf_write_tagged_value(s, t->key + 8, t->value) == 0)
count++;
}
return count;
}
static void mxf_write_package(AVFormatContext *s, MXFPackage *package)
{
MXFContext *mxf = s->priv_data;
AVIOContext *pb = s->pb;
int i, track_count = s->nb_streams+1;
int name_size = mxf_utf16_local_tag_length(package->name);
int user_comment_count = 0;
if (package->type == MaterialPackage) {
if (mxf->store_user_comments)
user_comment_count = mxf_write_user_comments(s, s->metadata);
mxf_write_metadata_key(pb, 0x013600);
PRINT_KEY(s, "Material Package key", pb->buf_ptr - 16);
klv_encode_ber_length(pb, 92 + name_size + (16*track_count) + (16*user_comment_count) + 12LL*mxf->store_user_comments);
} else {
mxf_write_metadata_key(pb, 0x013700);
PRINT_KEY(s, "Source Package key", pb->buf_ptr - 16);
klv_encode_ber_length(pb, 112 + name_size + (16*track_count) + 12LL*mxf->store_user_comments); // 20 bytes length for descriptor reference
}
// write uid
mxf_write_local_tag(s, 16, 0x3C0A);
mxf_write_uuid(pb, package->type, package->instance);
av_log(s, AV_LOG_DEBUG, "package type:%d\n", package->type);
PRINT_KEY(s, "package uid", pb->buf_ptr - 16);
// write package umid
mxf_write_local_tag(s, 32, 0x4401);
mxf_write_umid(s, package->instance);
PRINT_KEY(s, "package umid second part", pb->buf_ptr - 16);
// package name
if (name_size)
mxf_write_local_tag_utf16(s, 0x4402, package->name);
// package creation date
mxf_write_local_tag(s, 8, 0x4405);
avio_wb64(pb, mxf->timestamp);
// package modified date
mxf_write_local_tag(s, 8, 0x4404);
avio_wb64(pb, mxf->timestamp);
// write track refs
mxf_write_local_tag(s, track_count*16 + 8, 0x4403);
mxf_write_refs_count(pb, track_count);
// these are the uuids of the tracks the will be written in mxf_write_track
for (i = 0; i < track_count; i++)
mxf_write_uuid(pb, Track, mxf->track_instance_count + i);
// write user comment refs
if (mxf->store_user_comments) {
mxf_write_local_tag(s, user_comment_count*16 + 8, 0x4406);
mxf_write_refs_count(pb, user_comment_count);
for (i = 0; i < user_comment_count; i++)
mxf_write_uuid(pb, TaggedValue, mxf->tagged_value_count - user_comment_count + i);
}
// write multiple descriptor reference
if (package->type == SourcePackage && package->instance == 1) {
mxf_write_local_tag(s, 16, 0x4701);
if (s->nb_streams > 1) {
mxf_write_uuid(pb, MultipleDescriptor, 0);
mxf_write_multi_descriptor(s);
} else
mxf_write_uuid(pb, SubDescriptor, 0);
} else if (package->type == SourcePackage && package->instance == 2) {
mxf_write_local_tag(s, 16, 0x4701);
mxf_write_uuid(pb, TapeDescriptor, 0);
mxf_write_tape_descriptor(s);
}
/*
* for every 1 track in a package there is 1 sequence and 1 component.
* all 3 of these elements share the same instance number for generating
* there instance uuids. mxf->track_instance_count stores this value.
* mxf->track_instance_count is incremented after a group of all 3 of
* these elements are written.
*/
// write timecode track
mxf_write_track(s, mxf->timecode_track, package);
mxf_write_sequence(s, mxf->timecode_track, package);
mxf_write_timecode_component(s, mxf->timecode_track, package);
mxf->track_instance_count++;
for (i = 0; i < s->nb_streams; i++) {
AVStream *st = s->streams[i];
mxf_write_track(s, st, package);
mxf_write_sequence(s, st, package);
mxf_write_structural_component(s, st, package);
mxf->track_instance_count++;
if (package->type == SourcePackage && package->instance == 1) {
MXFStreamContext *sc = st->priv_data;
mxf_essence_container_uls[sc->index].write_desc(s, st);
}
}
}
static int mxf_write_essence_container_data(AVFormatContext *s)
{
AVIOContext *pb = s->pb;
mxf_write_metadata_key(pb, 0x012300);
klv_encode_ber_length(pb, 72);
mxf_write_local_tag(s, 16, 0x3C0A); // Instance UID
mxf_write_uuid(pb, EssenceContainerData, 0);
mxf_write_local_tag(s, 32, 0x2701); // Linked Package UID
mxf_write_umid(s, 1);
mxf_write_local_tag(s, 4, 0x3F07); // BodySID
avio_wb32(pb, 1);
mxf_write_local_tag(s, 4, 0x3F06); // IndexSID
avio_wb32(pb, 2);
return 0;
}
static int mxf_write_header_metadata_sets(AVFormatContext *s)
{
MXFContext *mxf = s->priv_data;
AVDictionaryEntry *entry = NULL;
AVStream *st = NULL;
int i;
MXFPackage packages[3] = {{0}};
int package_count = 2;
packages[0].type = MaterialPackage;
packages[1].type = SourcePackage;
packages[1].instance = 1;
packages[0].ref = &packages[1];
if (entry = av_dict_get(s->metadata, "material_package_name", NULL, 0))
packages[0].name = entry->value;
if (entry = av_dict_get(s->metadata, "file_package_name", NULL, 0)) {
packages[1].name = entry->value;
} else {
/* check if any of the streams contain a file_package_name */
for (i = 0; i < s->nb_streams; i++) {
st = s->streams[i];
if (entry = av_dict_get(st->metadata, "file_package_name", NULL, 0)) {
packages[1].name = entry->value;
break;
}
}
}
entry = av_dict_get(s->metadata, "reel_name", NULL, 0);
if (entry) {
packages[2].name = entry->value;
packages[2].type = SourcePackage;
packages[2].instance = 2;
packages[1].ref = &packages[2];
package_count = 3;
}
mxf_write_preface(s);
mxf_write_identification(s);
mxf_write_content_storage(s, packages, package_count);
mxf->track_instance_count = 0;
for (i = 0; i < package_count; i++)
mxf_write_package(s, &packages[i]);
mxf_write_essence_container_data(s);
return 0;
}
static unsigned klv_fill_size(uint64_t size)
{
unsigned pad = KAG_SIZE - (size & (KAG_SIZE-1));
if (pad < 20) // smallest fill item possible
return pad + KAG_SIZE;
else
return pad & (KAG_SIZE-1);
}
static void mxf_write_index_table_segment(AVFormatContext *s)
{
MXFContext *mxf = s->priv_data;
AVIOContext *pb = s->pb;
int i, j, temporal_reordering = 0;
int key_index = mxf->last_key_index;
int prev_non_b_picture = 0;
int audio_frame_size = 0;
int64_t pos;
av_log(s, AV_LOG_DEBUG, "edit units count %d\n", mxf->edit_units_count);
if (!mxf->edit_units_count && !mxf->edit_unit_byte_count)
return;
avio_write(pb, index_table_segment_key, 16);
klv_encode_ber4_length(pb, 0);
pos = avio_tell(pb);
// instance id
mxf_write_local_tag(s, 16, 0x3C0A);
mxf_write_uuid(pb, IndexTableSegment, 0);
// index edit rate
mxf_write_local_tag(s, 8, 0x3F0B);
avio_wb32(pb, mxf->time_base.den);
avio_wb32(pb, mxf->time_base.num);
// index start position
mxf_write_local_tag(s, 8, 0x3F0C);
avio_wb64(pb, mxf->last_indexed_edit_unit);
// index duration
mxf_write_local_tag(s, 8, 0x3F0D);
if (mxf->edit_unit_byte_count)
avio_wb64(pb, 0); // index table covers whole container
else
avio_wb64(pb, mxf->edit_units_count);
// edit unit byte count
mxf_write_local_tag(s, 4, 0x3F05);
avio_wb32(pb, mxf->edit_unit_byte_count);
// index sid
mxf_write_local_tag(s, 4, 0x3F06);
avio_wb32(pb, 2);
// body sid
mxf_write_local_tag(s, 4, 0x3F07);
avio_wb32(pb, 1);
// real slice count - 1
mxf_write_local_tag(s, 1, 0x3F08);
avio_w8(pb, !mxf->edit_unit_byte_count); // only one slice for CBR
// delta entry array
mxf_write_local_tag(s, 8 + (s->nb_streams+1)*6, 0x3F09);
avio_wb32(pb, s->nb_streams+1); // num of entries
avio_wb32(pb, 6); // size of one entry
// write system item delta entry
avio_w8(pb, 0);
avio_w8(pb, 0); // slice entry
avio_wb32(pb, 0); // element delta
// write each stream delta entry
for (i = 0; i < s->nb_streams; i++) {
AVStream *st = s->streams[i];
MXFStreamContext *sc = st->priv_data;
avio_w8(pb, sc->temporal_reordering);
if (sc->temporal_reordering)
temporal_reordering = 1;
if (mxf->edit_unit_byte_count) {
avio_w8(pb, 0); // slice number
avio_wb32(pb, sc->slice_offset);
} else if (i == 0) { // video track
avio_w8(pb, 0); // slice number
avio_wb32(pb, KAG_SIZE); // system item size including klv fill
} else { // audio or data track
if (!audio_frame_size) {
audio_frame_size = sc->frame_size;
audio_frame_size += klv_fill_size(audio_frame_size);
}
avio_w8(pb, 1);
avio_wb32(pb, (i-1)*audio_frame_size); // element delta
}
}
if (!mxf->edit_unit_byte_count) {
MXFStreamContext *sc = s->streams[0]->priv_data;
mxf_write_local_tag(s, 8 + mxf->edit_units_count*15, 0x3F0A);
avio_wb32(pb, mxf->edit_units_count); // num of entries
avio_wb32(pb, 15); // size of one entry
for (i = 0; i < mxf->edit_units_count; i++) {
int temporal_offset = 0;
if (!(mxf->index_entries[i].flags & 0x33)) { // I-frame
sc->max_gop = FFMAX(sc->max_gop, i - mxf->last_key_index);
mxf->last_key_index = key_index;
key_index = i;
}
if (temporal_reordering) {
int pic_num_in_gop = i - key_index;
if (pic_num_in_gop != mxf->index_entries[i].temporal_ref) {
for (j = key_index; j < mxf->edit_units_count; j++) {
if (pic_num_in_gop == mxf->index_entries[j].temporal_ref)
break;
}
if (j == mxf->edit_units_count)
av_log(s, AV_LOG_WARNING, "missing frames\n");
temporal_offset = j - key_index - pic_num_in_gop;
}
}
avio_w8(pb, temporal_offset);
if ((mxf->index_entries[i].flags & 0x30) == 0x30) { // back and forward prediction
sc->b_picture_count = FFMAX(sc->b_picture_count, i - prev_non_b_picture);
avio_w8(pb, mxf->last_key_index - i);
} else {
avio_w8(pb, key_index - i); // key frame offset
if ((mxf->index_entries[i].flags & 0x20) == 0x20) // only forward
mxf->last_key_index = key_index;
prev_non_b_picture = i;
}
if (!(mxf->index_entries[i].flags & 0x33) && // I-frame
mxf->index_entries[i].flags & 0x40 && !temporal_offset)
mxf->index_entries[i].flags |= 0x80; // random access
avio_w8(pb, mxf->index_entries[i].flags);
// stream offset
avio_wb64(pb, mxf->index_entries[i].offset);
if (s->nb_streams > 1)
avio_wb32(pb, mxf->index_entries[i].slice_offset);
else
avio_wb32(pb, 0);
}
mxf->last_key_index = key_index - mxf->edit_units_count;
mxf->last_indexed_edit_unit += mxf->edit_units_count;
mxf->edit_units_count = 0;
}
mxf_update_klv_size(pb, pos);
}
static void mxf_write_klv_fill(AVFormatContext *s)
{
unsigned pad = klv_fill_size(avio_tell(s->pb));
if (pad) {
avio_write(s->pb, klv_fill_key, 16);
pad -= 16 + 4;
klv_encode_ber4_length(s->pb, pad);
ffio_fill(s->pb, 0, pad);
av_assert1(!(avio_tell(s->pb) & (KAG_SIZE-1)));
}
}
static int mxf_write_partition(AVFormatContext *s, int bodysid,
int indexsid,
const uint8_t *key, int write_metadata)
{
MXFContext *mxf = s->priv_data;
AVIOContext *pb = s->pb;
int64_t header_byte_count_offset;
unsigned index_byte_count = 0;
uint64_t partition_offset = avio_tell(pb);
int err;
if (!mxf->edit_unit_byte_count && mxf->edit_units_count)
index_byte_count = 85 + 12+(s->nb_streams+1)*6 +
12+mxf->edit_units_count*15;
else if (mxf->edit_unit_byte_count && indexsid)
index_byte_count = 80;
if (index_byte_count) {
index_byte_count += 16 + 4; // add encoded ber4 length
index_byte_count += klv_fill_size(index_byte_count);
}
if (key && !memcmp(key, body_partition_key, 16)) {
if ((err = av_reallocp_array(&mxf->body_partition_offset, mxf->body_partitions_count + 1,
sizeof(*mxf->body_partition_offset))) < 0) {
mxf->body_partitions_count = 0;
return err;
}
mxf->body_partition_offset[mxf->body_partitions_count++] = partition_offset;
}
// write klv
if (key)
avio_write(pb, key, 16);
else
avio_write(pb, body_partition_key, 16);
klv_encode_ber4_length(pb, 88 + 16LL * DESCRIPTOR_COUNT(mxf->essence_container_count));
// write partition value
avio_wb16(pb, 1); // majorVersion
avio_wb16(pb, 3); // minorVersion
avio_wb32(pb, KAG_SIZE); // KAGSize
avio_wb64(pb, partition_offset); // ThisPartition
if (key && !memcmp(key, body_partition_key, 16) && mxf->body_partitions_count > 1)
avio_wb64(pb, mxf->body_partition_offset[mxf->body_partitions_count-2]); // PreviousPartition
else if (key && !memcmp(key, footer_partition_key, 16) && mxf->body_partitions_count)
avio_wb64(pb, mxf->body_partition_offset[mxf->body_partitions_count-1]); // PreviousPartition
else
avio_wb64(pb, 0);
avio_wb64(pb, mxf->footer_partition_offset); // footerPartition
// set offset
header_byte_count_offset = avio_tell(pb);
avio_wb64(pb, 0); // headerByteCount, update later
// indexTable
avio_wb64(pb, index_byte_count); // indexByteCount
avio_wb32(pb, index_byte_count ? indexsid : 0); // indexSID
// BodyOffset
if (bodysid && mxf->edit_units_count && mxf->body_partitions_count && s->oformat != &ff_mxf_opatom_muxer)
avio_wb64(pb, mxf->body_offset);
else
avio_wb64(pb, 0);
avio_wb32(pb, bodysid); // bodySID
// operational pattern
if (s->oformat == &ff_mxf_opatom_muxer)
avio_write(pb, opatom_ul, 16);
else
avio_write(pb, op1a_ul, 16);
// essence container
mxf_write_essence_container_refs(s);
if (write_metadata) {
// mark the start of the headermetadata and calculate metadata size
int64_t pos, start;
unsigned header_byte_count;
mxf_write_klv_fill(s);
start = avio_tell(s->pb);
mxf_write_primer_pack(s);
mxf_write_klv_fill(s);
mxf_write_header_metadata_sets(s);
pos = avio_tell(s->pb);
header_byte_count = pos - start + klv_fill_size(pos);
// update header_byte_count
avio_seek(pb, header_byte_count_offset, SEEK_SET);
avio_wb64(pb, header_byte_count);
avio_seek(pb, pos, SEEK_SET);
}
if(key)
avio_write_marker(pb, AV_NOPTS_VALUE, AVIO_DATA_MARKER_FLUSH_POINT);
return 0;
}
static const struct {
int profile;
UID codec_ul;
} mxf_prores_codec_uls[] = {
{ FF_PROFILE_PRORES_PROXY, { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x0d,0x04,0x01,0x02,0x02,0x03,0x06,0x01,0x00 } },
{ FF_PROFILE_PRORES_LT, { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x0d,0x04,0x01,0x02,0x02,0x03,0x06,0x02,0x00 } },
{ FF_PROFILE_PRORES_STANDARD, { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x0d,0x04,0x01,0x02,0x02,0x03,0x06,0x03,0x00 } },
{ FF_PROFILE_PRORES_HQ, { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x0d,0x04,0x01,0x02,0x02,0x03,0x06,0x04,0x00 } },
{ FF_PROFILE_PRORES_4444, { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x0d,0x04,0x01,0x02,0x02,0x03,0x06,0x05,0x00 } },
{ FF_PROFILE_PRORES_XQ, { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x0d,0x04,0x01,0x02,0x02,0x03,0x06,0x06,0x00 } },
};
static int mxf_parse_prores_frame(AVFormatContext *s, AVStream *st, AVPacket *pkt)
{
MXFContext *mxf = s->priv_data;
MXFStreamContext *sc = st->priv_data;
int i, profile;
if (mxf->header_written)
return 1;
profile = st->codecpar->profile;
for (i = 0; i < FF_ARRAY_ELEMS(mxf_prores_codec_uls); i++) {
if (profile == mxf_prores_codec_uls[i].profile) {
sc->codec_ul = &mxf_prores_codec_uls[i].codec_ul;
break;
}
}
if (i == FF_ARRAY_ELEMS(mxf_prores_codec_uls))
return 0;
sc->frame_size = pkt->size;
return 1;
}
static const struct {
int cid;
UID codec_ul;
} mxf_dnxhd_codec_uls[] = {
{ 1235, { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x0a,0x04,0x01,0x02,0x02,0x71,0x01,0x00,0x00 } }, // 1080p 10bit HIGH
{ 1237, { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x0a,0x04,0x01,0x02,0x02,0x71,0x03,0x00,0x00 } }, // 1080p 8bit MED
{ 1238, { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x0a,0x04,0x01,0x02,0x02,0x71,0x04,0x00,0x00 } }, // 1080p 8bit HIGH
{ 1241, { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x0a,0x04,0x01,0x02,0x02,0x71,0x07,0x00,0x00 } }, // 1080i 10bit HIGH
{ 1242, { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x0a,0x04,0x01,0x02,0x02,0x71,0x08,0x00,0x00 } }, // 1080i 8bit MED
{ 1243, { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x0a,0x04,0x01,0x02,0x02,0x71,0x09,0x00,0x00 } }, // 1080i 8bit HIGH
{ 1244, { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x0a,0x04,0x01,0x02,0x02,0x71,0x0a,0x00,0x00 } }, // 1080i 8bit TR
{ 1250, { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x0a,0x04,0x01,0x02,0x02,0x71,0x10,0x00,0x00 } }, // 720p 10bit
{ 1251, { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x0a,0x04,0x01,0x02,0x02,0x71,0x11,0x00,0x00 } }, // 720p 8bit HIGH
{ 1252, { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x0a,0x04,0x01,0x02,0x02,0x71,0x12,0x00,0x00 } }, // 720p 8bit MED
{ 1253, { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x0a,0x04,0x01,0x02,0x02,0x71,0x13,0x00,0x00 } }, // 720p 8bit LOW
{ 1256, { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x0a,0x04,0x01,0x02,0x02,0x71,0x16,0x00,0x00 } }, // 1080p 10bit 444
{ 1258, { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x0a,0x04,0x01,0x02,0x02,0x71,0x18,0x00,0x00 } }, // 720p 8bit TR
{ 1259, { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x0a,0x04,0x01,0x02,0x02,0x71,0x19,0x00,0x00 } }, // 1080p 8bit TR
{ 1260, { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x0a,0x04,0x01,0x02,0x02,0x71,0x1a,0x00,0x00 } }, // 1080i 8bit TR MBAFF
{ 1270, { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x0a,0x04,0x01,0x02,0x02,0x71,0x24,0x00,0x00 } }, // DNXHR 444
{ 1271, { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x0a,0x04,0x01,0x02,0x02,0x71,0x25,0x00,0x00 } }, // DNXHR HQX
{ 1272, { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x0a,0x04,0x01,0x02,0x02,0x71,0x26,0x00,0x00 } }, // DNXHR HQ
{ 1273, { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x0a,0x04,0x01,0x02,0x02,0x71,0x27,0x00,0x00 } }, // DNXHR SQ
{ 1274, { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x0a,0x04,0x01,0x02,0x02,0x71,0x28,0x00,0x00 } }, // DNXHR LB
};
static int mxf_parse_dnxhd_frame(AVFormatContext *s, AVStream *st, AVPacket *pkt)
{
MXFContext *mxf = s->priv_data;
MXFStreamContext *sc = st->priv_data;
int i, cid, frame_size = 0;
if (mxf->header_written)
return 1;
if (pkt->size < 43)
return 0;
cid = AV_RB32(pkt->data + 0x28);
for (i = 0; i < FF_ARRAY_ELEMS(mxf_dnxhd_codec_uls); i++) {
if (cid == mxf_dnxhd_codec_uls[i].cid) {
sc->codec_ul = &mxf_dnxhd_codec_uls[i].codec_ul;
break;
}
}
if (i == FF_ARRAY_ELEMS(mxf_dnxhd_codec_uls))
return 0;
sc->component_depth = 0;
switch (pkt->data[0x21] >> 5) {
case 1: sc->component_depth = 8; break;
case 2: sc->component_depth = 10; break;
case 3: sc->component_depth = 12; break;
}
if (!sc->component_depth)
return 0;
if ((frame_size = avpriv_dnxhd_get_frame_size(cid)) == DNXHD_VARIABLE) {
frame_size = avpriv_dnxhd_get_hr_frame_size(cid, st->codecpar->width, st->codecpar->height);
}
if (frame_size < 0)
return 0;
if ((sc->interlaced = avpriv_dnxhd_get_interlaced(cid)) < 0)
return 0;
if (cid >= 1270) { // RI raster
av_reduce(&sc->aspect_ratio.num, &sc->aspect_ratio.den,
st->codecpar->width, st->codecpar->height,
INT_MAX);
} else {
sc->aspect_ratio = (AVRational){ 16, 9 };
}
sc->frame_size = pkt->size;
return 1;
}
static const struct {
const UID container_ul;
const UID codec_ul;
} mxf_dv_uls[] = {
{ { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x0D,0x01,0x03,0x01,0x02,0x02,0x01,0x01 }, // IEC DV25 525/60
{ 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x04,0x01,0x02,0x02,0x02,0x01,0x01,0x00 } },
{ { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x0D,0x01,0x03,0x01,0x02,0x02,0x02,0x01 }, // IEC DV25 626/50
{ 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x04,0x01,0x02,0x02,0x02,0x01,0x02,0x00 } },
{ { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x0D,0x01,0x03,0x01,0x02,0x02,0x40,0x01 }, // DV25 525/60
{ 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x04,0x01,0x02,0x02,0x02,0x02,0x01,0x00 }, },
{ { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x0D,0x01,0x03,0x01,0x02,0x02,0x41,0x01 }, // DV25 625/50
{ 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x04,0x01,0x02,0x02,0x02,0x02,0x02,0x00 }, },
{ { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x0D,0x01,0x03,0x01,0x02,0x02,0x50,0x01 }, // DV50 525/60
{ 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x04,0x01,0x02,0x02,0x02,0x02,0x03,0x00 }, },
{ { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x0D,0x01,0x03,0x01,0x02,0x02,0x51,0x01 }, // DV50 625/50
{ 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x04,0x01,0x02,0x02,0x02,0x02,0x04,0x00 }, },
{ { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x0D,0x01,0x03,0x01,0x02,0x02,0x60,0x01 }, // DV100 1080/60
{ 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x04,0x01,0x02,0x02,0x02,0x02,0x05,0x00 }, },
{ { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x0D,0x01,0x03,0x01,0x02,0x02,0x61,0x01 }, // DV100 1080/50
{ 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x04,0x01,0x02,0x02,0x02,0x02,0x06,0x00 }, },
{ { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x0D,0x01,0x03,0x01,0x02,0x02,0x62,0x01 }, // DV100 720/60
{ 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x04,0x01,0x02,0x02,0x02,0x02,0x07,0x00 }, },
{ { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x0D,0x01,0x03,0x01,0x02,0x02,0x63,0x01 }, // DV100 720/50
{ 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x04,0x01,0x02,0x02,0x02,0x02,0x08,0x00 }, },
};
static int mxf_parse_dv_frame(AVFormatContext *s, AVStream *st, AVPacket *pkt)
{
MXFContext *mxf = s->priv_data;
MXFStreamContext *sc = st->priv_data;
uint8_t *vs_pack, *vsc_pack;
int apt, ul_index, stype, pal;
if (mxf->header_written)
return 1;
// Check for minimal frame size
if (pkt->size < 120000)
return -1;
apt = pkt->data[4] & 0x7;
vs_pack = pkt->data + 80*5 + 48;
vsc_pack = pkt->data + 80*5 + 53;
stype = vs_pack[3] & 0x1f;
pal = (vs_pack[3] >> 5) & 0x1;
if ((vsc_pack[2] & 0x07) == 0x02) {
sc->aspect_ratio = (AVRational){ 16, 9 };
} else {
sc->aspect_ratio = (AVRational){ 4, 3 };
}
sc->interlaced = (vsc_pack[3] >> 4) & 0x01;
// TODO: fix dv encoder to set proper FF/FS value in VSC pack
// and set field dominance accordingly
// av_log(s, AV_LOG_DEBUG, "DV vsc pack ff/ss = %x\n", vsc_pack[2] >> 6);
switch (stype) {
case 0x18: // DV100 720p
ul_index = 8+pal;
if (sc->interlaced) {
av_log(s, AV_LOG_ERROR, "source marked as interlaced but codec profile is progressive\n");
sc->interlaced = 0;
}
break;
case 0x14: // DV100 1080i
ul_index = 6+pal;
break;
case 0x04: // DV50
ul_index = 4+pal;
break;
default: // DV25
if (!apt) { // IEC
ul_index = 0+pal;
} else {
ul_index = 2+pal;
}
}
sc->container_ul = &mxf_dv_uls[ul_index].container_ul;
sc->codec_ul = &mxf_dv_uls[ul_index].codec_ul;
sc->frame_size = pkt->size;
return 1;
}
static const struct {
UID uid;
int frame_size;
int profile;
uint8_t interlaced;
int intra_only; // 1 or 0 when there are separate UIDs for Long GOP and Intra, -1 when Intra/LGOP detection can be ignored
} mxf_h264_codec_uls[] = {
{{ 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x0a,0x04,0x01,0x02,0x02,0x01,0x31,0x11,0x01 }, 0, 66, 0, -1 }, // AVC Baseline
{{ 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x0a,0x04,0x01,0x02,0x02,0x01,0x31,0x20,0x01 }, 0, 77, 0, -1 }, // AVC Main
{{ 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x0a,0x04,0x01,0x02,0x02,0x01,0x31,0x30,0x01 }, 0, 88, 0, -1 }, // AVC Extended
{{ 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x0a,0x04,0x01,0x02,0x02,0x01,0x31,0x40,0x01 }, 0, 100, 0, -1 }, // AVC High
{{ 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x0a,0x04,0x01,0x02,0x02,0x01,0x31,0x50,0x01 }, 0, 110, 0, 0 }, // AVC High 10
{{ 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x0a,0x04,0x01,0x02,0x02,0x01,0x31,0x60,0x01 }, 0, 122, 0, 0 }, // AVC High 422
{{ 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x0a,0x04,0x01,0x02,0x02,0x01,0x31,0x70,0x01 }, 0, 244, 0, 0 }, // AVC High 444
{{ 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x0a,0x04,0x01,0x02,0x02,0x01,0x32,0x20,0x01 }, 0, 110, 0, 1 }, // AVC High 10 Intra
{{ 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x0a,0x04,0x01,0x02,0x02,0x01,0x32,0x21,0x01 }, 232960, 110, 1, 1 }, // AVC High 10 Intra RP2027 Class 50 1080/59.94i
{{ 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x0a,0x04,0x01,0x02,0x02,0x01,0x32,0x21,0x02 }, 281088, 110, 1, 1 }, // AVC High 10 Intra RP2027 Class 50 1080/50i
{{ 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x0a,0x04,0x01,0x02,0x02,0x01,0x32,0x21,0x03 }, 232960, 110, 0, 1 }, // AVC High 10 Intra RP2027 Class 50 1080/29.97p
{{ 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x0a,0x04,0x01,0x02,0x02,0x01,0x32,0x21,0x04 }, 281088, 110, 0, 1 }, // AVC High 10 Intra RP2027 Class 50 1080/25p
{{ 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x0a,0x04,0x01,0x02,0x02,0x01,0x32,0x21,0x08 }, 116736, 110, 0, 1 }, // AVC High 10 Intra RP2027 Class 50 720/59.94p
{{ 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x0a,0x04,0x01,0x02,0x02,0x01,0x32,0x21,0x09 }, 140800, 110, 0, 1 }, // AVC High 10 Intra RP2027 Class 50 720/50p
{{ 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x0a,0x04,0x01,0x02,0x02,0x01,0x32,0x30,0x01 }, 0, 122, 0, 1 }, // AVC High 422 Intra
{{ 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x0a,0x04,0x01,0x02,0x02,0x01,0x32,0x31,0x01 }, 472576, 122, 1, 1 }, // AVC High 422 Intra RP2027 Class 100 1080/59.94i
{{ 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x0a,0x04,0x01,0x02,0x02,0x01,0x32,0x31,0x02 }, 568832, 122, 1, 1 }, // AVC High 422 Intra RP2027 Class 100 1080/50i
{{ 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x0a,0x04,0x01,0x02,0x02,0x01,0x32,0x31,0x03 }, 472576, 122, 0, 1 }, // AVC High 422 Intra RP2027 Class 100 1080/29.97p
{{ 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x0a,0x04,0x01,0x02,0x02,0x01,0x32,0x31,0x04 }, 568832, 122, 0, 1 }, // AVC High 422 Intra RP2027 Class 100 1080/25p
{{ 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x0a,0x04,0x01,0x02,0x02,0x01,0x32,0x31,0x08 }, 236544, 122, 0, 1 }, // AVC High 422 Intra RP2027 Class 100 720/59.94p
{{ 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x0a,0x04,0x01,0x02,0x02,0x01,0x32,0x31,0x09 }, 284672, 122, 0, 1 }, // AVC High 422 Intra RP2027 Class 100 720/50p
{{ 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x0d,0x04,0x01,0x02,0x02,0x01,0x32,0x40,0x01 }, 0, 244, 0, 1 }, // AVC High 444 Intra
{{ 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x0d,0x04,0x01,0x02,0x02,0x01,0x32,0x50,0x01 }, 0, 44, 0, -1 }, // AVC CAVLC 444
};
static int mxf_parse_h264_frame(AVFormatContext *s, AVStream *st,
AVPacket *pkt, MXFIndexEntry *e)
{
MXFContext *mxf = s->priv_data;
MXFStreamContext *sc = st->priv_data;
H264SPS seq, *const sps = &seq;
GetBitContext gb;
const uint8_t *buf = pkt->data;
const uint8_t *buf_end = pkt->data + pkt->size;
const uint8_t *nal_end;
const UID *codec_ul = NULL;
uint32_t state = -1;
int extra_size = 512; // support AVC Intra files without SPS/PPS header
int i, frame_size, slice_type, has_sps = 0, intra_only = 0, ret;
for (;;) {
buf = avpriv_find_start_code(buf, buf_end, &state);
if (buf >= buf_end)
break;
switch (state & 0x1f) {
case H264_NAL_SPS:
e->flags |= 0x40;
if (mxf->header_written)
break;
nal_end = ff_avc_find_startcode(buf, buf_end);
ret = ff_avc_decode_sps(sps, buf, nal_end - buf);
if (ret < 0) {
av_log(s, AV_LOG_ERROR, "error parsing sps\n");
return 0;
}
has_sps = 1;
sc->aspect_ratio.num = st->codecpar->width * sps->sar.num;
sc->aspect_ratio.den = st->codecpar->height * sps->sar.den;
av_reduce(&sc->aspect_ratio.num, &sc->aspect_ratio.den,
sc->aspect_ratio.num, sc->aspect_ratio.den, 1024*1024);
intra_only = (sps->constraint_set_flags >> 3) & 1;
sc->interlaced = !sps->frame_mbs_only_flag;
sc->component_depth = sps->bit_depth_luma;
buf = nal_end;
break;
case H264_NAL_PPS:
if (e->flags & 0x40) { // sequence header present
e->flags |= 0x80; // random access
extra_size = 0;
}
break;
case H264_NAL_IDR_SLICE:
e->flags |= 0x04; // IDR Picture
buf = buf_end;
break;
case H264_NAL_SLICE:
init_get_bits8(&gb, buf, buf_end - buf);
get_ue_golomb_long(&gb); // skip first_mb_in_slice
slice_type = get_ue_golomb_31(&gb);
switch (slice_type % 5) {
case 0:
e->flags |= 0x20; // P Picture
e->flags |= 0x06; // P Picture
break;
case 1:
e->flags |= 0x30; // B Picture
e->flags |= 0x03; // non-referenced B Picture
break;
}
buf = buf_end;
break;
default:
break;
}
}
if (mxf->header_written)
return 1;
if (!has_sps)
sc->interlaced = st->codecpar->field_order != AV_FIELD_PROGRESSIVE ? 1 : 0;
frame_size = pkt->size + extra_size;
for (i = 0; i < FF_ARRAY_ELEMS(mxf_h264_codec_uls); i++) {
if (frame_size == mxf_h264_codec_uls[i].frame_size && sc->interlaced == mxf_h264_codec_uls[i].interlaced) {
codec_ul = &mxf_h264_codec_uls[i].uid;
sc->component_depth = 10; // AVC Intra is always 10 Bit
sc->aspect_ratio = (AVRational){ 16, 9 }; // 16:9 is mandatory for broadcast HD
st->codecpar->profile = mxf_h264_codec_uls[i].profile;
sc->avc_intra = 1;
mxf->cbr_index = 1;
sc->frame_size = pkt->size;
if (sc->interlaced)
sc->field_dominance = 1; // top field first is mandatory for AVC Intra
break;
} else if (has_sps && mxf_h264_codec_uls[i].frame_size == 0 &&
mxf_h264_codec_uls[i].profile == sps->profile_idc &&
(mxf_h264_codec_uls[i].intra_only < 0 ||
mxf_h264_codec_uls[i].intra_only == intra_only)) {
codec_ul = &mxf_h264_codec_uls[i].uid;
st->codecpar->profile = sps->profile_idc;
st->codecpar->level = sps->level_idc;
// continue to check for avc intra
}
}
if (!codec_ul) {
av_log(s, AV_LOG_ERROR, "h264 profile not supported\n");
return 0;
}
sc->codec_ul = codec_ul;
return 1;
}
static const UID mxf_mpeg2_codec_uls[] = {
{ 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x03,0x04,0x01,0x02,0x02,0x01,0x01,0x10,0x00 }, // MP-ML I-Frame
{ 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x03,0x04,0x01,0x02,0x02,0x01,0x01,0x11,0x00 }, // MP-ML Long GOP
{ 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x03,0x04,0x01,0x02,0x02,0x01,0x02,0x02,0x00 }, // 422P-ML I-Frame
{ 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x03,0x04,0x01,0x02,0x02,0x01,0x02,0x03,0x00 }, // 422P-ML Long GOP
{ 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x03,0x04,0x01,0x02,0x02,0x01,0x03,0x02,0x00 }, // MP-HL I-Frame
{ 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x03,0x04,0x01,0x02,0x02,0x01,0x03,0x03,0x00 }, // MP-HL Long GOP
{ 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x03,0x04,0x01,0x02,0x02,0x01,0x04,0x02,0x00 }, // 422P-HL I-Frame
{ 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x03,0x04,0x01,0x02,0x02,0x01,0x04,0x03,0x00 }, // 422P-HL Long GOP
{ 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x03,0x04,0x01,0x02,0x02,0x01,0x05,0x02,0x00 }, // MP@H-14 I-Frame
{ 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x03,0x04,0x01,0x02,0x02,0x01,0x05,0x03,0x00 }, // MP@H-14 Long GOP
};
static const UID *mxf_get_mpeg2_codec_ul(AVCodecParameters *par)
{
int long_gop = 1;
if (par->profile == 4) { // Main
if (par->level == 8) // Main
return &mxf_mpeg2_codec_uls[0+long_gop];
else if (par->level == 4) // High
return &mxf_mpeg2_codec_uls[4+long_gop];
else if (par->level == 6) // High 14
return &mxf_mpeg2_codec_uls[8+long_gop];
} else if (par->profile == 0) { // 422
if (par->level == 5) // Main
return &mxf_mpeg2_codec_uls[2+long_gop];
else if (par->level == 2) // High
return &mxf_mpeg2_codec_uls[6+long_gop];
}
return NULL;
}
static int mxf_parse_mpeg2_frame(AVFormatContext *s, AVStream *st,
AVPacket *pkt, MXFIndexEntry *e)
{
MXFStreamContext *sc = st->priv_data;
uint32_t c = -1;
int i;
for(i = 0; i < pkt->size - 4; i++) {
c = (c<<8) + pkt->data[i];
if (c == 0x1b5) {
if ((pkt->data[i+1] & 0xf0) == 0x10) { // seq ext
st->codecpar->profile = pkt->data[i+1] & 0x07;
st->codecpar->level = pkt->data[i+2] >> 4;
sc->low_delay = pkt->data[i+6] >> 7;
} else if (i + 5 < pkt->size && (pkt->data[i+1] & 0xf0) == 0x80) { // pict coding ext
sc->interlaced = !(pkt->data[i+5] & 0x80); // progressive frame
if (sc->interlaced)
sc->field_dominance = 1 + !(pkt->data[i+4] & 0x80); // top field first
break;
}
} else if (c == 0x1b8) { // gop
if (pkt->data[i+4]>>6 & 0x01) { // closed
if (sc->seq_closed_gop == -1)
sc->seq_closed_gop = 1;
sc->closed_gop = 1;
if (e->flags & 0x40) // sequence header present
e->flags |= 0x80; // random access
} else {
sc->seq_closed_gop = 0;
sc->closed_gop = 0;
}
} else if (c == 0x1b3) { // seq
e->flags |= 0x40;
switch ((pkt->data[i+4]>>4) & 0xf) {
case 2: sc->aspect_ratio = (AVRational){ 4, 3}; break;
case 3: sc->aspect_ratio = (AVRational){ 16, 9}; break;
case 4: sc->aspect_ratio = (AVRational){221,100}; break;
default:
av_reduce(&sc->aspect_ratio.num, &sc->aspect_ratio.den,
st->codecpar->width, st->codecpar->height, 1024*1024);
}
} else if (c == 0x100) { // pic
int pict_type = (pkt->data[i+2]>>3) & 0x07;
e->temporal_ref = (pkt->data[i+1]<<2) | (pkt->data[i+2]>>6);
if (pict_type == 2) { // P-frame
e->flags |= 0x22;
sc->closed_gop = 0; // reset closed GOP, don't matter anymore
} else if (pict_type == 3) { // B-frame
if (sc->closed_gop)
e->flags |= 0x13; // only backward prediction
else
e->flags |= 0x33;
sc->temporal_reordering = -1;
} else if (!pict_type) {
av_log(s, AV_LOG_ERROR, "error parsing mpeg2 frame\n");
return 0;
}
}
}
if (s->oformat != &ff_mxf_d10_muxer) {
const UID *codec_ul = mxf_get_mpeg2_codec_ul(st->codecpar);
if (!codec_ul)
return 0;
sc->codec_ul = codec_ul;
}
return 1;
}
static uint64_t mxf_parse_timestamp(int64_t timestamp64)
{
time_t timestamp = timestamp64 / 1000000;
struct tm tmbuf;
struct tm *time = gmtime_r(&timestamp, &tmbuf);
if (!time)
return 0;
return (uint64_t)(time->tm_year+1900) << 48 |
(uint64_t)(time->tm_mon+1) << 40 |
(uint64_t) time->tm_mday << 32 |
time->tm_hour << 24 |
time->tm_min << 16 |
time->tm_sec << 8 |
(timestamp64 % 1000000) / 4000;
}
static void mxf_gen_umid(AVFormatContext *s)
{
MXFContext *mxf = s->priv_data;
uint32_t seed = av_get_random_seed();
uint64_t umid = seed + 0x5294713400000000LL;
AV_WB64(mxf->umid , umid);
AV_WB64(mxf->umid+8, umid>>8);
mxf->instance_number = seed & 0xFFFFFF;
}
static int mxf_init_timecode(AVFormatContext *s, AVStream *st, AVRational tbc)
{
MXFContext *mxf = s->priv_data;
AVDictionaryEntry *tcr = av_dict_get(s->metadata, "timecode", NULL, 0);
if (!ff_mxf_get_content_package_rate(tbc)) {
if (s->strict_std_compliance > FF_COMPLIANCE_UNOFFICIAL) {
av_log(s, AV_LOG_ERROR, "Unsupported frame rate %d/%d. Set -strict option to 'unofficial' or lower in order to allow it!\n", tbc.den, tbc.num);
return AVERROR(EINVAL);
} else {
av_log(s, AV_LOG_WARNING, "Unofficial frame rate %d/%d.\n", tbc.den, tbc.num);
}
}
mxf->timecode_base = (tbc.den + tbc.num/2) / tbc.num;
if (!tcr)
tcr = av_dict_get(st->metadata, "timecode", NULL, 0);
if (tcr)
return av_timecode_init_from_string(&mxf->tc, av_inv_q(tbc), tcr->value, s);
else
return av_timecode_init(&mxf->tc, av_inv_q(tbc), 0, 0, s);
}
static int mxf_write_header(AVFormatContext *s)
{
MXFContext *mxf = s->priv_data;
int i, ret;
uint8_t present[FF_ARRAY_ELEMS(mxf_essence_container_uls)] = {0};
int64_t timestamp = 0;
if (!s->nb_streams)
return -1;
if (s->oformat == &ff_mxf_opatom_muxer && s->nb_streams !=1) {
av_log(s, AV_LOG_ERROR, "there must be exactly one stream for mxf opatom\n");
return -1;
}
if (!av_dict_get(s->metadata, "comment_", NULL, AV_DICT_IGNORE_SUFFIX))
mxf->store_user_comments = 0;
for (i = 0; i < s->nb_streams; i++) {
AVStream *st = s->streams[i];
MXFStreamContext *sc = av_mallocz(sizeof(*sc));
if (!sc)
return AVERROR(ENOMEM);
st->priv_data = sc;
sc->index = -1;
if (((i == 0) ^ (st->codecpar->codec_type == AVMEDIA_TYPE_VIDEO)) && s->oformat != &ff_mxf_opatom_muxer) {
av_log(s, AV_LOG_ERROR, "there must be exactly one video stream and it must be the first one\n");
return -1;
}
if (st->codecpar->codec_type == AVMEDIA_TYPE_VIDEO) {
const AVPixFmtDescriptor *pix_desc = av_pix_fmt_desc_get(st->codecpar->format);
// TODO: should be avg_frame_rate
AVRational tbc = st->time_base;
// Default component depth to 8
sc->component_depth = 8;
sc->h_chroma_sub_sample = 2;
sc->v_chroma_sub_sample = 2;
sc->color_siting = 0xFF;
if (st->codecpar->sample_aspect_ratio.num && st->codecpar->sample_aspect_ratio.den) {
sc->aspect_ratio = av_mul_q(st->codecpar->sample_aspect_ratio,
av_make_q(st->codecpar->width, st->codecpar->height));
}
if (pix_desc) {
sc->component_depth = pix_desc->comp[0].depth;
sc->h_chroma_sub_sample = 1 << pix_desc->log2_chroma_w;
sc->v_chroma_sub_sample = 1 << pix_desc->log2_chroma_h;
}
switch (ff_choose_chroma_location(s, st)) {
case AVCHROMA_LOC_TOPLEFT: sc->color_siting = 0; break;
case AVCHROMA_LOC_LEFT: sc->color_siting = 6; break;
case AVCHROMA_LOC_TOP: sc->color_siting = 1; break;
case AVCHROMA_LOC_CENTER: sc->color_siting = 3; break;
}
mxf->content_package_rate = ff_mxf_get_content_package_rate(tbc);
mxf->time_base = tbc;
avpriv_set_pts_info(st, 64, mxf->time_base.num, mxf->time_base.den);
if((ret = mxf_init_timecode(s, st, tbc)) < 0)
return ret;
if (st->codecpar->codec_id == AV_CODEC_ID_MPEG2VIDEO) {
sc->seq_closed_gop = -1; // unknown yet
}
sc->video_bit_rate = st->codecpar->bit_rate;
if (s->oformat == &ff_mxf_d10_muxer ||
st->codecpar->codec_id == AV_CODEC_ID_DNXHD ||
st->codecpar->codec_id == AV_CODEC_ID_DVVIDEO)
mxf->cbr_index = 1;
if (s->oformat == &ff_mxf_d10_muxer) {
int ntsc = mxf->time_base.den != 25;
int ul_index;
if (st->codecpar->codec_id != AV_CODEC_ID_MPEG2VIDEO) {
av_log(s, AV_LOG_ERROR, "error MXF D-10 only support MPEG-2 Video\n");
return AVERROR(EINVAL);
}
if ((sc->video_bit_rate == 50000000) && (mxf->time_base.den == 25)) {
ul_index = 0;
} else if ((sc->video_bit_rate == 49999840 || sc->video_bit_rate == 50000000) && ntsc) {
ul_index = 1;
} else if (sc->video_bit_rate == 40000000) {
ul_index = 2+ntsc;
} else if (sc->video_bit_rate == 30000000) {
ul_index = 4+ntsc;
} else {
av_log(s, AV_LOG_ERROR, "error MXF D-10 only support 30/40/50 mbit/s\n");
return -1;
}
sc->codec_ul = &mxf_d10_codec_uls[ul_index];
sc->container_ul = &mxf_d10_container_uls[ul_index];
sc->index = INDEX_D10_VIDEO;
sc->signal_standard = 1;
sc->color_siting = 0;
sc->frame_size = (int64_t)sc->video_bit_rate *
mxf->time_base.num / (8*mxf->time_base.den);
}
if (mxf->signal_standard >= 0)
sc->signal_standard = mxf->signal_standard;
} else if (st->codecpar->codec_type == AVMEDIA_TYPE_AUDIO) {
char bsf_arg[32];
if (st->codecpar->sample_rate != 48000) {
av_log(s, AV_LOG_ERROR, "only 48khz is implemented\n");
return -1;
}
avpriv_set_pts_info(st, 64, 1, st->codecpar->sample_rate);
if (s->oformat == &ff_mxf_d10_muxer) {
if (st->index != 1) {
av_log(s, AV_LOG_ERROR, "MXF D-10 only support one audio track\n");
return -1;
}
if (st->codecpar->codec_id != AV_CODEC_ID_PCM_S16LE &&
st->codecpar->codec_id != AV_CODEC_ID_PCM_S24LE) {
av_log(s, AV_LOG_ERROR, "MXF D-10 only support 16 or 24 bits le audio\n");
}
sc->index = INDEX_D10_AUDIO;
sc->container_ul = ((MXFStreamContext*)s->streams[0]->priv_data)->container_ul;
sc->frame_size = 4 + 8 * av_rescale_rnd(st->codecpar->sample_rate, mxf->time_base.num, mxf->time_base.den, AV_ROUND_UP) * 4;
} else if (s->oformat == &ff_mxf_opatom_muxer) {
AVRational tbc = av_inv_q(mxf->audio_edit_rate);
if (st->codecpar->codec_id != AV_CODEC_ID_PCM_S16LE &&
st->codecpar->codec_id != AV_CODEC_ID_PCM_S24LE) {
av_log(s, AV_LOG_ERROR, "Only pcm_s16le and pcm_s24le audio codecs are implemented\n");
return AVERROR_PATCHWELCOME;
}
if (st->codecpar->channels != 1) {
av_log(s, AV_LOG_ERROR, "MXF OPAtom only supports single channel audio\n");
return AVERROR(EINVAL);
}
mxf->time_base = st->time_base;
if((ret = mxf_init_timecode(s, st, tbc)) < 0)
return ret;
mxf->edit_unit_byte_count = (av_get_bits_per_sample(st->codecpar->codec_id) * st->codecpar->channels) >> 3;
sc->index = INDEX_WAV;
} else {
mxf->slice_count = 1;
sc->frame_size = st->codecpar->channels *
av_rescale_rnd(st->codecpar->sample_rate, mxf->time_base.num, mxf->time_base.den, AV_ROUND_UP) *
av_get_bits_per_sample(st->codecpar->codec_id) / 8;
}
snprintf(bsf_arg, sizeof(bsf_arg), "r=%d/%d", mxf->tc.rate.num, mxf->tc.rate.den);
ret = ff_stream_add_bitstream_filter(st, "pcm_rechunk", bsf_arg);
if (ret < 0)
return ret;
} else if (st->codecpar->codec_type == AVMEDIA_TYPE_DATA) {
AVDictionaryEntry *e = av_dict_get(st->metadata, "data_type", NULL, 0);
if (e && !strcmp(e->value, "vbi_vanc_smpte_436M")) {
sc->index = INDEX_S436M;
} else {
av_log(s, AV_LOG_ERROR, "track %d: unsupported data type\n", i);
return -1;
}
if (st->index != s->nb_streams - 1) {
av_log(s, AV_LOG_ERROR, "data track must be placed last\n");
return -1;
}
}
if (sc->index == -1) {
sc->index = mxf_get_essence_container_ul_index(st->codecpar->codec_id);
if (sc->index == -1) {
av_log(s, AV_LOG_ERROR, "track %d: could not find essence container ul, "
"codec not currently supported in container\n", i);
return -1;
}
}
if (!sc->codec_ul)
sc->codec_ul = &mxf_essence_container_uls[sc->index].codec_ul;
if (!sc->container_ul)
sc->container_ul = &mxf_essence_container_uls[sc->index].container_ul;
memcpy(sc->track_essence_element_key, mxf_essence_container_uls[sc->index].element_ul, 15);
sc->track_essence_element_key[15] = present[sc->index];
PRINT_KEY(s, "track essence element key", sc->track_essence_element_key);
if (!present[sc->index])
mxf->essence_container_count++;
present[sc->index]++;
}
if (s->oformat == &ff_mxf_d10_muxer || s->oformat == &ff_mxf_opatom_muxer) {
mxf->essence_container_count = 1;
}
if (!(s->flags & AVFMT_FLAG_BITEXACT))
mxf_gen_umid(s);
for (i = 0; i < s->nb_streams; i++) {
MXFStreamContext *sc = s->streams[i]->priv_data;
// update element count
sc->track_essence_element_key[13] = present[sc->index];
if (!memcmp(sc->track_essence_element_key, mxf_essence_container_uls[INDEX_DV].element_ul, 13)) // DV
sc->order = (0x15 << 24) | AV_RB32(sc->track_essence_element_key+13);
else
sc->order = AV_RB32(sc->track_essence_element_key+12);
}
if (ff_parse_creation_time_metadata(s, &timestamp, 0) > 0)
mxf->timestamp = mxf_parse_timestamp(timestamp);
mxf->duration = -1;
mxf->timecode_track = av_mallocz(sizeof(*mxf->timecode_track));
if (!mxf->timecode_track)
return AVERROR(ENOMEM);
mxf->timecode_track->priv_data = av_mallocz(sizeof(MXFStreamContext));
if (!mxf->timecode_track->priv_data)
return AVERROR(ENOMEM);
mxf->timecode_track->index = -1;
return 0;
}
static const uint8_t system_metadata_pack_key[] = { 0x06,0x0E,0x2B,0x34,0x02,0x05,0x01,0x01,0x0D,0x01,0x03,0x01,0x04,0x01,0x01,0x00 };
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 };
static void mxf_write_system_item(AVFormatContext *s)
{
MXFContext *mxf = s->priv_data;
AVIOContext *pb = s->pb;
unsigned frame;
uint32_t time_code;
int i, system_item_bitmap = 0x58; // UL, user date/time stamp, picture present
frame = mxf->last_indexed_edit_unit + mxf->edit_units_count;
// write system metadata pack
avio_write(pb, system_metadata_pack_key, 16);
klv_encode_ber4_length(pb, 57);
for (i = 0; i < s->nb_streams; i++) {
if (s->streams[i]->codecpar->codec_type == AVMEDIA_TYPE_AUDIO)
system_item_bitmap |= 0x4;
else if (s->streams[i]->codecpar->codec_type == AVMEDIA_TYPE_DATA)
system_item_bitmap |= 0x2;
}
avio_w8(pb, system_item_bitmap);
avio_w8(pb, mxf->content_package_rate); // content package rate
avio_w8(pb, 0x00); // content package type
avio_wb16(pb, 0x00); // channel handle
avio_wb16(pb, frame & 0xFFFF); // continuity count, supposed to overflow
if (mxf->essence_container_count > 1)
avio_write(pb, multiple_desc_ul, 16);
else {
MXFStreamContext *sc = s->streams[0]->priv_data;
avio_write(pb, *sc->container_ul, 16);
}
avio_w8(pb, 0);
avio_wb64(pb, 0);
avio_wb64(pb, 0); // creation date/time stamp
avio_w8(pb, 0x81); // SMPTE 12M time code
time_code = av_timecode_get_smpte_from_framenum(&mxf->tc, frame);
avio_wb32(pb, time_code);
avio_wb32(pb, 0); // binary group data
avio_wb64(pb, 0);
// write system metadata package set
avio_write(pb, system_metadata_package_set_key, 16);
klv_encode_ber4_length(pb, 35);
avio_w8(pb, 0x83); // UMID
avio_wb16(pb, 0x20);
mxf_write_umid(s, 1);
}
static void mxf_write_d10_audio_packet(AVFormatContext *s, AVStream *st, AVPacket *pkt)
{
MXFContext *mxf = s->priv_data;
AVIOContext *pb = s->pb;
int frame_size = pkt->size / st->codecpar->block_align;
uint8_t *samples = pkt->data;
uint8_t *end = pkt->data + pkt->size;
int i;
klv_encode_ber4_length(pb, 4 + frame_size*4*8);
avio_w8(pb, (frame_size == 1920 ? 0 : (mxf->edit_units_count-1) % 5 + 1));
avio_wl16(pb, frame_size);
avio_w8(pb, (1<<st->codecpar->channels)-1);
while (samples < end) {
for (i = 0; i < st->codecpar->channels; i++) {
uint32_t sample;
if (st->codecpar->codec_id == AV_CODEC_ID_PCM_S24LE) {
sample = AV_RL24(samples)<< 4;
samples += 3;
} else {
sample = AV_RL16(samples)<<12;
samples += 2;
}
avio_wl32(pb, sample | i);
}
for (; i < 8; i++)
avio_wl32(pb, i);
}
}
static int mxf_write_opatom_body_partition(AVFormatContext *s)
{
MXFContext *mxf = s->priv_data;
AVIOContext *pb = s->pb;
AVStream *st = s->streams[0];
MXFStreamContext *sc = st->priv_data;
const uint8_t *key = NULL;
int err;
if (!mxf->header_written)
key = body_partition_key;
if ((err = mxf_write_partition(s, 1, 0, key, 0)) < 0)
return err;
mxf_write_klv_fill(s);
avio_write(pb, sc->track_essence_element_key, 16);
klv_encode_ber9_length(pb, mxf->body_offset);
return 0;
}
static int mxf_write_opatom_packet(AVFormatContext *s, AVPacket *pkt, MXFIndexEntry *ie)
{
MXFContext *mxf = s->priv_data;
AVIOContext *pb = s->pb;
int err;
if (!mxf->header_written) {
if ((err = mxf_write_partition(s, 0, 0, header_open_partition_key, 1)) < 0)
return err;
mxf_write_klv_fill(s);
if ((err = mxf_write_opatom_body_partition(s)) < 0)
return err;
mxf->header_written = 1;
}
if (!mxf->edit_unit_byte_count) {
mxf->index_entries[mxf->edit_units_count].offset = mxf->body_offset;
mxf->index_entries[mxf->edit_units_count].flags = ie->flags;
mxf->index_entries[mxf->edit_units_count].temporal_ref = ie->temporal_ref;
}
mxf->edit_units_count++;
avio_write(pb, pkt->data, pkt->size);
mxf->body_offset += pkt->size;
return 0;
}
static void mxf_compute_edit_unit_byte_count(AVFormatContext *s)
{
MXFContext *mxf = s->priv_data;
int i;
if (s->oformat == &ff_mxf_opatom_muxer) {
MXFStreamContext *sc = s->streams[0]->priv_data;
mxf->edit_unit_byte_count = sc->frame_size;
return;
}
mxf->edit_unit_byte_count = KAG_SIZE; // system element
for (i = 0; i < s->nb_streams; i++) {
AVStream *st = s->streams[i];
MXFStreamContext *sc = st->priv_data;
sc->slice_offset = mxf->edit_unit_byte_count;
mxf->edit_unit_byte_count += 16 + 4 + sc->frame_size;
mxf->edit_unit_byte_count += klv_fill_size(mxf->edit_unit_byte_count);
}
}
static int mxf_write_packet(AVFormatContext *s, AVPacket *pkt)
{
MXFContext *mxf = s->priv_data;
AVIOContext *pb = s->pb;
AVStream *st = s->streams[pkt->stream_index];
MXFStreamContext *sc = st->priv_data;
MXFIndexEntry ie = {0};
int err;
if (!mxf->header_written && pkt->stream_index != 0 &&
s->oformat != &ff_mxf_opatom_muxer) {
av_log(s, AV_LOG_ERROR, "Received non-video packet before "
"header has been written\n");
return AVERROR_INVALIDDATA;
}
if (!mxf->cbr_index && !mxf->edit_unit_byte_count && !(mxf->edit_units_count % EDIT_UNITS_PER_BODY)) {
if ((err = av_reallocp_array(&mxf->index_entries, mxf->edit_units_count
+ EDIT_UNITS_PER_BODY, sizeof(*mxf->index_entries))) < 0) {
mxf->edit_units_count = 0;
av_log(s, AV_LOG_ERROR, "could not allocate index entries\n");
return err;
}
}
if (st->codecpar->codec_id == AV_CODEC_ID_MPEG2VIDEO) {
if (!mxf_parse_mpeg2_frame(s, st, pkt, &ie)) {
av_log(s, AV_LOG_ERROR, "could not get mpeg2 profile and level\n");
return -1;
}
} else if (st->codecpar->codec_id == AV_CODEC_ID_DNXHD) {
if (!mxf_parse_dnxhd_frame(s, st, pkt)) {
av_log(s, AV_LOG_ERROR, "could not get dnxhd profile\n");
return -1;
}
} else if (st->codecpar->codec_id == AV_CODEC_ID_PRORES) {
if (!mxf_parse_prores_frame(s, st, pkt)) {
av_log(s, AV_LOG_ERROR, "could not get prores profile\n");
return -1;
}
} else if (st->codecpar->codec_id == AV_CODEC_ID_DVVIDEO) {
if (!mxf_parse_dv_frame(s, st, pkt)) {
av_log(s, AV_LOG_ERROR, "could not get dv profile\n");
return -1;
}
} else if (st->codecpar->codec_id == AV_CODEC_ID_H264) {
if (!mxf_parse_h264_frame(s, st, pkt, &ie)) {
av_log(s, AV_LOG_ERROR, "could not get h264 profile\n");
return -1;
}
}
if (mxf->cbr_index) {
if (pkt->size != sc->frame_size && st->codecpar->codec_type == AVMEDIA_TYPE_VIDEO) {
av_log(s, AV_LOG_ERROR, "track %d: frame size does not match index unit size, %d != %d\n",
st->index, pkt->size, sc->frame_size);
return -1;
}
if (!mxf->header_written)
mxf_compute_edit_unit_byte_count(s);
}
if (s->oformat == &ff_mxf_opatom_muxer)
return mxf_write_opatom_packet(s, pkt, &ie);
if (!mxf->header_written) {
if (mxf->edit_unit_byte_count) {
if ((err = mxf_write_partition(s, 1, 2, header_open_partition_key, 1)) < 0)
return err;
mxf_write_klv_fill(s);
mxf_write_index_table_segment(s);
} else {
if ((err = mxf_write_partition(s, 0, 0, header_open_partition_key, 1)) < 0)
return err;
}
mxf->header_written = 1;
}
if (st->index == 0) {
if (!mxf->edit_unit_byte_count &&
(!mxf->edit_units_count || mxf->edit_units_count > EDIT_UNITS_PER_BODY) &&
!(ie.flags & 0x33)) { // I-frame, GOP start
mxf_write_klv_fill(s);
if ((err = mxf_write_partition(s, 1, 2, body_partition_key, 0)) < 0)
return err;
mxf_write_klv_fill(s);
mxf_write_index_table_segment(s);
}
mxf_write_klv_fill(s);
mxf_write_system_item(s);
if (!mxf->edit_unit_byte_count) {
mxf->index_entries[mxf->edit_units_count].offset = mxf->body_offset;
mxf->index_entries[mxf->edit_units_count].flags = ie.flags;
mxf->index_entries[mxf->edit_units_count].temporal_ref = ie.temporal_ref;
mxf->body_offset += KAG_SIZE; // size of system element
}
mxf->edit_units_count++;
} else if (!mxf->edit_unit_byte_count && st->index == 1) {
if (!mxf->edit_units_count) {
av_log(s, AV_LOG_ERROR, "No packets in first stream\n");
return AVERROR_PATCHWELCOME;
}
mxf->index_entries[mxf->edit_units_count-1].slice_offset =
mxf->body_offset - mxf->index_entries[mxf->edit_units_count-1].offset;
}
mxf_write_klv_fill(s);
avio_write(pb, sc->track_essence_element_key, 16); // write key
if (s->oformat == &ff_mxf_d10_muxer &&
st->codecpar->codec_type == AVMEDIA_TYPE_AUDIO) {
mxf_write_d10_audio_packet(s, st, pkt);
} else {
klv_encode_ber4_length(pb, pkt->size); // write length
avio_write(pb, pkt->data, pkt->size);
mxf->body_offset += 16+4+pkt->size + klv_fill_size(16+4+pkt->size);
}
return 0;
}
static void mxf_write_random_index_pack(AVFormatContext *s)
{
MXFContext *mxf = s->priv_data;
AVIOContext *pb = s->pb;
uint64_t pos = avio_tell(pb);
int i;
avio_write(pb, ff_mxf_random_index_pack_key, 16);
klv_encode_ber_length(pb, 28 + 12LL*mxf->body_partitions_count);
if (mxf->edit_unit_byte_count && s->oformat != &ff_mxf_opatom_muxer)
avio_wb32(pb, 1); // BodySID of header partition
else
avio_wb32(pb, 0);
avio_wb64(pb, 0); // offset of header partition
for (i = 0; i < mxf->body_partitions_count; i++) {
avio_wb32(pb, 1); // BodySID
avio_wb64(pb, mxf->body_partition_offset[i]);
}
avio_wb32(pb, 0); // BodySID of footer partition
avio_wb64(pb, mxf->footer_partition_offset);
avio_wb32(pb, avio_tell(pb) - pos + 4);
}
static int mxf_write_footer(AVFormatContext *s)
{
MXFContext *mxf = s->priv_data;
AVIOContext *pb = s->pb;
int i, err;
if (!mxf->header_written ||
(s->oformat == &ff_mxf_opatom_muxer && !mxf->body_partition_offset)) {
/* reason could be invalid options/not supported codec/out of memory */
return AVERROR_UNKNOWN;
}
mxf->duration = mxf->last_indexed_edit_unit + mxf->edit_units_count;
mxf_write_klv_fill(s);
mxf->footer_partition_offset = avio_tell(pb);
if (mxf->edit_unit_byte_count && s->oformat != &ff_mxf_opatom_muxer) { // no need to repeat index
if ((err = mxf_write_partition(s, 0, 0, footer_partition_key, 0)) < 0)
return err;
} else {
if ((err = mxf_write_partition(s, 0, 2, footer_partition_key, 0)) < 0)
return err;
mxf_write_klv_fill(s);
mxf_write_index_table_segment(s);
}
mxf_write_klv_fill(s);
mxf_write_random_index_pack(s);
if (s->pb->seekable & AVIO_SEEKABLE_NORMAL) {
if (s->oformat == &ff_mxf_opatom_muxer) {
/* rewrite body partition to update lengths */
avio_seek(pb, mxf->body_partition_offset[0], SEEK_SET);
if ((err = mxf_write_opatom_body_partition(s)) < 0)
return err;
}
avio_seek(pb, 0, SEEK_SET);
if (mxf->edit_unit_byte_count && s->oformat != &ff_mxf_opatom_muxer) {
if ((err = mxf_write_partition(s, 1, 2, header_closed_partition_key, 1)) < 0)
return err;
mxf_write_klv_fill(s);
mxf_write_index_table_segment(s);
} else {
if ((err = mxf_write_partition(s, 0, 0, header_closed_partition_key, 1)) < 0)
return err;
}
// update footer partition offset
for (i = 0; i < mxf->body_partitions_count; i++) {
avio_seek(pb, mxf->body_partition_offset[i]+44, SEEK_SET);
avio_wb64(pb, mxf->footer_partition_offset);
}
}
return 0;
}
static void mxf_deinit(AVFormatContext *s)
{
MXFContext *mxf = s->priv_data;
av_freep(&mxf->index_entries);
av_freep(&mxf->body_partition_offset);
if (mxf->timecode_track) {
av_freep(&mxf->timecode_track->priv_data);
av_freep(&mxf->timecode_track);
}
}
static int mxf_interleave_get_packet(AVFormatContext *s, AVPacket *out, AVPacket *pkt, int flush)
{
FFFormatContext *const si = ffformatcontext(s);
int i, stream_count = 0;
for (i = 0; i < s->nb_streams; i++)
stream_count += !!ffstream(s->streams[i])->last_in_packet_buffer;
if (stream_count && (s->nb_streams == stream_count || flush)) {
PacketList *pktl = si->packet_buffer;
if (s->nb_streams != stream_count) {
PacketList *last = NULL;
// find last packet in edit unit
while (pktl) {
if (!stream_count || pktl->pkt.stream_index == 0)
break;
// update last packet in packet buffer
if (ffstream(s->streams[pktl->pkt.stream_index])->last_in_packet_buffer != pktl)
ffstream(s->streams[pktl->pkt.stream_index])->last_in_packet_buffer = pktl;
last = pktl;
pktl = pktl->next;
stream_count--;
}
// purge packet queue
while (pktl) {
PacketList *next = pktl->next;
av_packet_unref(&pktl->pkt);
av_freep(&pktl);
pktl = next;
}
if (last)
last->next = NULL;
else {
si->packet_buffer = NULL;
si->packet_buffer_end = NULL;
goto out;
}
pktl = si->packet_buffer;
}
*out = pktl->pkt;
av_log(s, AV_LOG_TRACE, "out st:%d dts:%"PRId64"\n", (*out).stream_index, (*out).dts);
si->packet_buffer = pktl->next;
if (ffstream(s->streams[pktl->pkt.stream_index])->last_in_packet_buffer == pktl)
ffstream(s->streams[pktl->pkt.stream_index])->last_in_packet_buffer = NULL;
if (!si->packet_buffer)
si->packet_buffer_end = NULL;
av_freep(&pktl);
return 1;
} else {
out:
return 0;
}
}
static int mxf_compare_timestamps(AVFormatContext *s, const AVPacket *next,
const AVPacket *pkt)
{
MXFStreamContext *sc = s->streams[pkt ->stream_index]->priv_data;
MXFStreamContext *sc2 = s->streams[next->stream_index]->priv_data;
return next->dts > pkt->dts ||
(next->dts == pkt->dts && sc->order < sc2->order);
}
static int mxf_interleave(AVFormatContext *s, AVPacket *out, AVPacket *pkt, int flush)
{
int ret;
if (pkt) {
MXFStreamContext *sc = s->streams[pkt->stream_index]->priv_data;
pkt->pts = pkt->dts = sc->pkt_cnt++;
if ((ret = ff_interleave_add_packet(s, pkt, mxf_compare_timestamps)) < 0)
return ret;
}
return mxf_interleave_get_packet(s, out, NULL, flush);
}
#define MXF_COMMON_OPTIONS \
{ "signal_standard", "Force/set Signal Standard",\
offsetof(MXFContext, signal_standard), AV_OPT_TYPE_INT, {.i64 = -1}, -1, 7, AV_OPT_FLAG_ENCODING_PARAM, "signal_standard"},\
{ "bt601", "ITU-R BT.601 and BT.656, also SMPTE 125M (525 and 625 line interlaced)",\
0, AV_OPT_TYPE_CONST, {.i64 = 1}, -1, 7, AV_OPT_FLAG_ENCODING_PARAM, "signal_standard"},\
{ "bt1358", "ITU-R BT.1358 and ITU-R BT.799-3, also SMPTE 293M (525 and 625 line progressive)",\
0, AV_OPT_TYPE_CONST, {.i64 = 2}, -1, 7, AV_OPT_FLAG_ENCODING_PARAM, "signal_standard"},\
{ "smpte347m", "SMPTE 347M (540 Mbps mappings)",\
0, AV_OPT_TYPE_CONST, {.i64 = 3}, -1, 7, AV_OPT_FLAG_ENCODING_PARAM, "signal_standard"},\
{ "smpte274m", "SMPTE 274M (1125 line)",\
0, AV_OPT_TYPE_CONST, {.i64 = 4}, -1, 7, AV_OPT_FLAG_ENCODING_PARAM, "signal_standard"},\
{ "smpte296m", "SMPTE 296M (750 line progressive)",\
0, AV_OPT_TYPE_CONST, {.i64 = 5}, -1, 7, AV_OPT_FLAG_ENCODING_PARAM, "signal_standard"},\
{ "smpte349m", "SMPTE 349M (1485 Mbps mappings)",\
0, AV_OPT_TYPE_CONST, {.i64 = 6}, -1, 7, AV_OPT_FLAG_ENCODING_PARAM, "signal_standard"},\
{ "smpte428", "SMPTE 428-1 DCDM",\
0, AV_OPT_TYPE_CONST, {.i64 = 7}, -1, 7, AV_OPT_FLAG_ENCODING_PARAM, "signal_standard"},
static const AVOption mxf_options[] = {
MXF_COMMON_OPTIONS
{ "store_user_comments", "",
offsetof(MXFContext, store_user_comments), AV_OPT_TYPE_BOOL, {.i64 = 1}, 0, 1, AV_OPT_FLAG_ENCODING_PARAM},
{ NULL },
};
static const AVClass mxf_muxer_class = {
.class_name = "MXF muxer",
.item_name = av_default_item_name,
.option = mxf_options,
.version = LIBAVUTIL_VERSION_INT,
};
static const AVOption d10_options[] = {
{ "d10_channelcount", "Force/set channelcount in generic sound essence descriptor",
offsetof(MXFContext, channel_count), AV_OPT_TYPE_INT, {.i64 = -1}, -1, 8, AV_OPT_FLAG_ENCODING_PARAM},
MXF_COMMON_OPTIONS
{ "store_user_comments", "",
offsetof(MXFContext, store_user_comments), AV_OPT_TYPE_BOOL, {.i64 = 0}, 0, 1, AV_OPT_FLAG_ENCODING_PARAM},
{ NULL },
};
static const AVClass mxf_d10_muxer_class = {
.class_name = "MXF-D10 muxer",
.item_name = av_default_item_name,
.option = d10_options,
.version = LIBAVUTIL_VERSION_INT,
};
static const AVOption opatom_options[] = {
{ "mxf_audio_edit_rate", "Audio edit rate for timecode",
offsetof(MXFContext, audio_edit_rate), AV_OPT_TYPE_RATIONAL, {.dbl=25}, 0, INT_MAX, AV_OPT_FLAG_ENCODING_PARAM },
MXF_COMMON_OPTIONS
{ "store_user_comments", "",
offsetof(MXFContext, store_user_comments), AV_OPT_TYPE_BOOL, {.i64 = 1}, 0, 1, AV_OPT_FLAG_ENCODING_PARAM},
{ NULL },
};
static const AVClass mxf_opatom_muxer_class = {
.class_name = "MXF-OPAtom muxer",
.item_name = av_default_item_name,
.option = opatom_options,
.version = LIBAVUTIL_VERSION_INT,
};
const AVOutputFormat ff_mxf_muxer = {
.name = "mxf",
.long_name = NULL_IF_CONFIG_SMALL("MXF (Material eXchange Format)"),
.mime_type = "application/mxf",
.extensions = "mxf",
.priv_data_size = sizeof(MXFContext),
.audio_codec = AV_CODEC_ID_PCM_S16LE,
.video_codec = AV_CODEC_ID_MPEG2VIDEO,
.write_header = mxf_write_header,
.write_packet = mxf_write_packet,
.write_trailer = mxf_write_footer,
.deinit = mxf_deinit,
.flags = AVFMT_NOTIMESTAMPS,
.interleave_packet = mxf_interleave,
.priv_class = &mxf_muxer_class,
};
const AVOutputFormat ff_mxf_d10_muxer = {
.name = "mxf_d10",
.long_name = NULL_IF_CONFIG_SMALL("MXF (Material eXchange Format) D-10 Mapping"),
.mime_type = "application/mxf",
.priv_data_size = sizeof(MXFContext),
.audio_codec = AV_CODEC_ID_PCM_S16LE,
.video_codec = AV_CODEC_ID_MPEG2VIDEO,
.write_header = mxf_write_header,
.write_packet = mxf_write_packet,
.write_trailer = mxf_write_footer,
.deinit = mxf_deinit,
.flags = AVFMT_NOTIMESTAMPS,
.interleave_packet = mxf_interleave,
.priv_class = &mxf_d10_muxer_class,
};
const AVOutputFormat ff_mxf_opatom_muxer = {
.name = "mxf_opatom",
.long_name = NULL_IF_CONFIG_SMALL("MXF (Material eXchange Format) Operational Pattern Atom"),
.mime_type = "application/mxf",
.extensions = "mxf",
.priv_data_size = sizeof(MXFContext),
.audio_codec = AV_CODEC_ID_PCM_S16LE,
.video_codec = AV_CODEC_ID_DNXHD,
.write_header = mxf_write_header,
.write_packet = mxf_write_packet,
.write_trailer = mxf_write_footer,
.deinit = mxf_deinit,
.flags = AVFMT_NOTIMESTAMPS,
.interleave_packet = mxf_interleave,
.priv_class = &mxf_opatom_muxer_class,
};
Reference in New Issue View Git Blame Copy Permalink