67143c0f |
/* |
8cf3bb26 |
* Matroska muxer |
67143c0f |
* Copyright (c) 2007 David Conrad
*
* 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
*/
|
8f8bc923 |
#include <stdint.h>
|
0574bc06 |
#include "avc.h" |
a823d094 |
#include "hevc.h" |
67143c0f |
#include "avformat.h" |
5ceffb1b |
#include "avio_internal.h" |
0574bc06 |
#include "avlanguage.h"
#include "flacenc.h" |
c3f9ebf7 |
#include "internal.h" |
f009e36f |
#include "isom.h" |
67143c0f |
#include "matroska.h" |
0574bc06 |
#include "riff.h" |
90fc00a6 |
#include "subtitles.h" |
106b62f4 |
#include "vorbiscomment.h" |
01656fd4 |
#include "wv.h" |
0574bc06 |
#include "libavutil/avstring.h" |
106b62f4 |
#include "libavutil/channel_layout.h" |
0574bc06 |
#include "libavutil/dict.h" |
3383a53e |
#include "libavutil/intfloat.h" |
0574bc06 |
#include "libavutil/intreadwrite.h"
#include "libavutil/lfg.h" |
0ebcdf5c |
#include "libavutil/mathematics.h" |
e3b225a4 |
#include "libavutil/opt.h" |
1f4280e7 |
#include "libavutil/random_seed.h" |
31852540 |
#include "libavutil/rational.h" |
0574bc06 |
#include "libavutil/samplefmt.h" |
2e0cc342 |
#include "libavutil/sha.h" |
4d686fb7 |
#include "libavutil/stereo3d.h" |
0574bc06 |
|
245976da |
#include "libavcodec/xiph.h" |
7bfacd4e |
#include "libavcodec/mpeg4audio.h" |
bb47aa58 |
#include "libavcodec/internal.h" |
67143c0f |
|
baf71dca |
typedef struct ebml_master { |
bc5c918e |
int64_t pos; ///< absolute offset in the file where the master's elements start |
baf71dca |
int sizebytes; ///< how many bytes were reserved for the size
} ebml_master;
|
967d815a |
typedef struct mkv_seekhead_entry {
unsigned int elementid;
uint64_t segmentpos;
} mkv_seekhead_entry;
typedef struct mkv_seekhead { |
bc5c918e |
int64_t filepos;
int64_t segment_offset; ///< the file offset to the beginning of the segment |
1b66d314 |
int reserved_size; ///< -1 if appending to file |
967d815a |
int max_entries;
mkv_seekhead_entry *entries;
int num_entries;
} mkv_seekhead;
|
daf8cf35 |
typedef struct mkv_cuepoint { |
6364d534 |
uint64_t pts; |
37cef8c7 |
int stream_idx; |
6364d534 |
int tracknum; |
bc5c918e |
int64_t cluster_pos; ///< file offset of the cluster containing the block |
c5f3cc40 |
int64_t relative_pos; ///< relative offset from the position of the cluster containing the block |
56f17407 |
int64_t duration; ///< duration of the block according to time base |
6364d534 |
} mkv_cuepoint;
|
daf8cf35 |
typedef struct mkv_cues { |
bc5c918e |
int64_t segment_offset; |
6364d534 |
mkv_cuepoint *entries;
int num_entries;
} mkv_cues;
|
daf8cf35 |
typedef struct mkv_track { |
84d4e599 |
int write_dts; |
271f4112 |
int has_cue; |
a1aa37dd |
int64_t ts_offset; |
84d4e599 |
} mkv_track;
|
316d6c15 |
#define MODE_MATROSKAv2 0x01
#define MODE_WEBM 0x02
|
7be0f48a |
/** Maximum number of tracks allowed in a Matroska file (with track numbers in
* range 1 to 126 (inclusive) */
#define MAX_TRACKS 126
|
67143c0f |
typedef struct MatroskaMuxContext { |
e3b225a4 |
const AVClass *class; |
316d6c15 |
int mode; |
ae628ec1 |
AVIOContext *dyn_bc; |
baf71dca |
ebml_master segment; |
bc5c918e |
int64_t segment_offset; |
baf71dca |
ebml_master cluster; |
bc5c918e |
int64_t cluster_pos; ///< file offset of the current cluster |
f9ff7179 |
int64_t cluster_pts; |
bc5c918e |
int64_t duration_offset; |
f9ff7179 |
int64_t duration; |
967d815a |
mkv_seekhead *main_seekhead; |
6364d534 |
mkv_cues *cues; |
84d4e599 |
mkv_track *tracks; |
541d443c |
|
ac9baa71 |
AVPacket cur_audio_pkt; |
c7a63a52 |
int have_attachments; |
e3b225a4 |
int reserve_cues_space; |
98308bd4 |
int cluster_size_limit; |
e3b225a4 |
int64_t cues_pos; |
98308bd4 |
int64_t cluster_time_limit; |
37cef8c7 |
int is_dash;
int dash_track_number; |
6fd300ac |
int is_live; |
07704c61 |
uint32_t chapter_id_offset; |
26b241c0 |
int wrote_chapters; |
7d60baa8 |
|
7be0f48a |
int64_t last_track_timestamp[MAX_TRACKS];
|
31852540 |
int64_t* stream_durations;
int64_t* stream_duration_offsets;
|
7d60baa8 |
int allow_raw_vfw; |
67143c0f |
} MatroskaMuxContext;
|
baf71dca |
|
e3cd80cd |
/** 2 bytes * 3 for EBML IDs, 3 1-byte EBML lengths, 8 bytes for 64 bit
* offset, 4 bytes for target EBML ID */ |
baf71dca |
#define MAX_SEEKENTRY_SIZE 21
|
56f17407 |
/** per-cuepoint-track - 5 1-byte EBML IDs, 5 1-byte EBML sizes, 4 |
e3cd80cd |
* 8-byte uint max */ |
56f17407 |
#define MAX_CUETRACKPOS_SIZE 42 |
baf71dca |
|
e3cd80cd |
/** per-cuepoint - 2 1-byte EBML IDs, 2 1-byte EBML sizes, 8-byte uint max */ |
f1f6156b |
#define MAX_CUEPOINT_SIZE(num_tracks) 12 + MAX_CUETRACKPOS_SIZE * num_tracks |
baf71dca |
|
571efd97 |
/** Seek preroll value for opus */
#define OPUS_SEEK_PREROLL 80000000
|
22ccb69a |
static int ebml_id_size(unsigned int id)
{ |
f1f6156b |
return (av_log2(id + 1) - 1) / 7 + 1; |
22ccb69a |
}
|
ae628ec1 |
static void put_ebml_id(AVIOContext *pb, unsigned int id) |
67143c0f |
{ |
432adc13 |
int i = ebml_id_size(id);
while (i--) |
8365287e |
avio_w8(pb, (uint8_t)(id >> (i * 8))); |
67143c0f |
}
|
ec8f4ad9 |
/** |
bf898960 |
* Write an EBML size meaning "unknown size". |
ec8f4ad9 |
* |
bf898960 |
* @param bytes The number of bytes the size should occupy (maximum: 8). |
ec8f4ad9 |
*/ |
ae628ec1 |
static void put_ebml_size_unknown(AVIOContext *pb, int bytes) |
ec8f4ad9 |
{ |
c5cc9498 |
av_assert0(bytes <= 8); |
77eb5504 |
avio_w8(pb, 0x1ff >> bytes); |
5ceffb1b |
ffio_fill(pb, 0xff, bytes - 1); |
ec8f4ad9 |
}
|
1c73478c |
/** |
0f651e8c |
* Calculate how many bytes are needed to represent a given number in EBML. |
1c73478c |
*/ |
0f651e8c |
static int ebml_num_size(uint64_t num) |
1c73478c |
{
int bytes = 1; |
f1f6156b |
while ((num + 1) >> bytes * 7)
bytes++; |
1c73478c |
return bytes;
}
|
f0e9f442 |
/** |
0f651e8c |
* Write a number in EBML variable length format. |
f0e9f442 |
* |
0f651e8c |
* @param bytes The number of bytes that need to be used to write the number. |
f0e9f442 |
* If zero, any number of bytes can be used.
*/ |
ae628ec1 |
static void put_ebml_num(AVIOContext *pb, uint64_t num, int bytes) |
67143c0f |
{ |
0f651e8c |
int i, needed_bytes = ebml_num_size(num); |
67143c0f |
// sizes larger than this are currently undefined in EBML |
8365287e |
av_assert0(num < (1ULL << 56) - 1); |
ffb880c2 |
|
f0e9f442 |
if (bytes == 0)
// don't care how many bytes are used, so use the min
bytes = needed_bytes; |
47e08c58 |
// the bytes needed to write the given size would exceed the bytes
// that we need to use, so write unknown size. This shouldn't happen. |
c5cc9498 |
av_assert0(bytes >= needed_bytes); |
f0e9f442 |
|
f1f6156b |
num |= 1ULL << bytes * 7; |
ddf16467 |
for (i = bytes - 1; i >= 0; i--) |
8365287e |
avio_w8(pb, (uint8_t)(num >> i * 8)); |
67143c0f |
}
|
ae628ec1 |
static void put_ebml_uint(AVIOContext *pb, unsigned int elementid, uint64_t val) |
67143c0f |
{ |
9f38fd7e |
int i, bytes = 1; |
73260a11 |
uint64_t tmp = val; |
f1f6156b |
while (tmp >>= 8)
bytes++; |
67143c0f |
put_ebml_id(pb, elementid); |
0f651e8c |
put_ebml_num(pb, bytes, 0); |
9f38fd7e |
for (i = bytes - 1; i >= 0; i--) |
8365287e |
avio_w8(pb, (uint8_t)(val >> i * 8)); |
67143c0f |
}
|
d03eea36 |
static void put_ebml_sint(AVIOContext *pb, unsigned int elementid, int64_t val)
{
int i, bytes = 1; |
cddd15ba |
uint64_t tmp = 2*(val < 0 ? val^-1 : val);
while (tmp>>=8) bytes++; |
d03eea36 |
put_ebml_id(pb, elementid);
put_ebml_num(pb, bytes, 0);
for (i = bytes - 1; i >= 0; i--) |
8365287e |
avio_w8(pb, (uint8_t)(val >> i * 8)); |
d03eea36 |
}
|
ae628ec1 |
static void put_ebml_float(AVIOContext *pb, unsigned int elementid, double val) |
9b6b0c79 |
{
put_ebml_id(pb, elementid); |
0f651e8c |
put_ebml_num(pb, 8, 0); |
3383a53e |
avio_wb64(pb, av_double2int(val)); |
9b6b0c79 |
}
|
ae628ec1 |
static void put_ebml_binary(AVIOContext *pb, unsigned int elementid, |
4a6bef1f |
const void *buf, int size) |
67143c0f |
{
put_ebml_id(pb, elementid); |
0f651e8c |
put_ebml_num(pb, size, 0); |
77eb5504 |
avio_write(pb, buf, size); |
67143c0f |
}
|
f1f6156b |
static void put_ebml_string(AVIOContext *pb, unsigned int elementid,
const char *str) |
67143c0f |
{
put_ebml_binary(pb, elementid, str, strlen(str));
}
|
57848e9a |
/** |
49bd8e4b |
* Write a void element of a given size. Useful for reserving space in |
cfde5d18 |
* the file to be written to later. |
57848e9a |
* |
5045da83 |
* @param size The number of bytes to reserve, which must be at least 2. |
57848e9a |
*/ |
ae628ec1 |
static void put_ebml_void(AVIOContext *pb, uint64_t size) |
f57b85a5 |
{ |
a2704c97 |
int64_t currentpos = avio_tell(pb); |
f57b85a5 |
|
c5cc9498 |
av_assert0(size >= 2); |
f57b85a5 |
put_ebml_id(pb, EBML_ID_VOID); |
cfde5d18 |
// we need to subtract the length needed to store the size from the
// size we need to reserve so 2 cases, we use 8 bytes to store the
// size if possible, 1 byte otherwise |
f57b85a5 |
if (size < 10) |
f1f6156b |
put_ebml_num(pb, size - 1, 0); |
f57b85a5 |
else |
f1f6156b |
put_ebml_num(pb, size - 9, 8); |
5ceffb1b |
ffio_fill(pb, 0, currentpos + size - avio_tell(pb)); |
f57b85a5 |
}
|
f1f6156b |
static ebml_master start_ebml_master(AVIOContext *pb, unsigned int elementid,
uint64_t expectedsize) |
67143c0f |
{ |
0f651e8c |
int bytes = expectedsize ? ebml_num_size(expectedsize) : 8; |
67143c0f |
put_ebml_id(pb, elementid); |
baf71dca |
put_ebml_size_unknown(pb, bytes); |
f1f6156b |
return (ebml_master) {avio_tell(pb), bytes }; |
67143c0f |
}
|
ae628ec1 |
static void end_ebml_master(AVIOContext *pb, ebml_master master) |
67143c0f |
{ |
a2704c97 |
int64_t pos = avio_tell(pb); |
67143c0f |
|
6b4aa5da |
if (avio_seek(pb, master.pos - master.sizebytes, SEEK_SET) < 0) |
ac9e1177 |
return; |
0f651e8c |
put_ebml_num(pb, pos - master.pos, master.sizebytes); |
6b4aa5da |
avio_seek(pb, pos, SEEK_SET); |
67143c0f |
}
|
ae628ec1 |
static void put_xiph_size(AVIOContext *pb, int size) |
86be6637 |
{ |
5ceffb1b |
ffio_fill(pb, 255, size / 255); |
77eb5504 |
avio_w8(pb, size % 255); |
86be6637 |
}
|
57848e9a |
/** |
3dabebc2 |
* Free the members allocated in the mux context.
*/
static void mkv_free(MatroskaMuxContext *mkv) {
if (mkv->main_seekhead) {
av_freep(&mkv->main_seekhead->entries);
av_freep(&mkv->main_seekhead);
}
if (mkv->cues) {
av_freep(&mkv->cues->entries);
av_freep(&mkv->cues);
}
av_freep(&mkv->tracks);
av_freep(&mkv->stream_durations);
av_freep(&mkv->stream_duration_offsets);
}
/** |
cfde5d18 |
* Initialize a mkv_seekhead element to be ready to index level 1 Matroska
* elements. If a maximum number of elements is specified, enough space
* will be reserved at the current file location to write a seek head of
* that size. |
57848e9a |
* |
cfde5d18 |
* @param segment_offset The absolute offset to the position in the file |
ab332d01 |
* where the segment begins.
* @param numelements The maximum number of elements that will be indexed |
cfde5d18 |
* by this seek head, 0 if unlimited. |
57848e9a |
*/ |
f1f6156b |
static mkv_seekhead *mkv_start_seekhead(AVIOContext *pb, int64_t segment_offset,
int numelements) |
967d815a |
{
mkv_seekhead *new_seekhead = av_mallocz(sizeof(mkv_seekhead)); |
f929ab05 |
if (!new_seekhead) |
967d815a |
return NULL;
new_seekhead->segment_offset = segment_offset;
if (numelements > 0) { |
a2704c97 |
new_seekhead->filepos = avio_tell(pb); |
cfde5d18 |
// 21 bytes max for a seek entry, 10 bytes max for the SeekHead ID
// and size, and 3 bytes to guarantee that an EBML void element
// will fit afterwards |
baf71dca |
new_seekhead->reserved_size = numelements * MAX_SEEKENTRY_SIZE + 13; |
f1f6156b |
new_seekhead->max_entries = numelements; |
967d815a |
put_ebml_void(pb, new_seekhead->reserved_size);
}
return new_seekhead;
}
static int mkv_add_seekhead_entry(mkv_seekhead *seekhead, unsigned int elementid, uint64_t filepos)
{
mkv_seekhead_entry *entries = seekhead->entries;
// don't store more elements than we reserved space for
if (seekhead->max_entries > 0 && seekhead->max_entries <= seekhead->num_entries)
return -1;
|
9bca8e53 |
entries = av_realloc_array(entries, seekhead->num_entries + 1, sizeof(mkv_seekhead_entry)); |
fb33bff9 |
if (!entries) |
c9367c07 |
return AVERROR(ENOMEM); |
ba5e7781 |
seekhead->entries = entries; |
967d815a |
|
00a63bfb |
seekhead->entries[seekhead->num_entries].elementid = elementid;
seekhead->entries[seekhead->num_entries++].segmentpos = filepos - seekhead->segment_offset; |
967d815a |
return 0;
}
|
57848e9a |
/** |
cfde5d18 |
* Write the seek head to the file and free it. If a maximum number of
* elements was specified to mkv_start_seekhead(), the seek head will
* be written at the location reserved for it. Otherwise, it is written
* at the current location in the file. |
57848e9a |
* |
7a2a4840 |
* @return The file offset where the seekhead was written,
* -1 if an error occurred. |
57848e9a |
*/ |
3dabebc2 |
static int64_t mkv_write_seekhead(AVIOContext *pb, MatroskaMuxContext *mkv) |
967d815a |
{ |
3dabebc2 |
mkv_seekhead *seekhead = mkv->main_seekhead; |
baf71dca |
ebml_master metaseek, seekentry; |
bc5c918e |
int64_t currentpos; |
967d815a |
int i;
|
a2704c97 |
currentpos = avio_tell(pb); |
967d815a |
|
44729bc0 |
if (seekhead->reserved_size > 0) {
if (avio_seek(pb, seekhead->filepos, SEEK_SET) < 0) {
currentpos = -1;
goto fail;
}
} |
967d815a |
|
baf71dca |
metaseek = start_ebml_master(pb, MATROSKA_ID_SEEKHEAD, seekhead->reserved_size); |
967d815a |
for (i = 0; i < seekhead->num_entries; i++) {
mkv_seekhead_entry *entry = &seekhead->entries[i];
|
baf71dca |
seekentry = start_ebml_master(pb, MATROSKA_ID_SEEKENTRY, MAX_SEEKENTRY_SIZE); |
967d815a |
put_ebml_id(pb, MATROSKA_ID_SEEKID); |
0f651e8c |
put_ebml_num(pb, ebml_id_size(entry->elementid), 0); |
967d815a |
put_ebml_id(pb, entry->elementid);
put_ebml_uint(pb, MATROSKA_ID_SEEKPOSITION, entry->segmentpos);
end_ebml_master(pb, seekentry);
}
end_ebml_master(pb, metaseek);
if (seekhead->reserved_size > 0) { |
a2704c97 |
uint64_t remaining = seekhead->filepos + seekhead->reserved_size - avio_tell(pb); |
967d815a |
put_ebml_void(pb, remaining); |
6b4aa5da |
avio_seek(pb, currentpos, SEEK_SET); |
967d815a |
currentpos = seekhead->filepos;
} |
44729bc0 |
fail: |
3dabebc2 |
av_freep(&mkv->main_seekhead->entries);
av_freep(&mkv->main_seekhead); |
967d815a |
return currentpos;
}
|
f1f6156b |
static mkv_cues *mkv_start_cues(int64_t segment_offset) |
6364d534 |
{
mkv_cues *cues = av_mallocz(sizeof(mkv_cues)); |
f929ab05 |
if (!cues) |
6364d534 |
return NULL;
cues->segment_offset = segment_offset;
return cues;
}
|
37cef8c7 |
static int mkv_add_cuepoint(mkv_cues *cues, int stream, int tracknum, int64_t ts,
int64_t cluster_pos, int64_t relative_pos, int64_t duration) |
6364d534 |
{
mkv_cuepoint *entries = cues->entries;
|
4ffbe3f3 |
if (ts < 0)
return 0;
|
9bca8e53 |
entries = av_realloc_array(entries, cues->num_entries + 1, sizeof(mkv_cuepoint)); |
fb33bff9 |
if (!entries) |
c9367c07 |
return AVERROR(ENOMEM); |
ba5e7781 |
cues->entries = entries; |
6364d534 |
|
00a63bfb |
cues->entries[cues->num_entries].pts = ts; |
37cef8c7 |
cues->entries[cues->num_entries].stream_idx = stream;
cues->entries[cues->num_entries].tracknum = tracknum; |
ba5e7781 |
cues->entries[cues->num_entries].cluster_pos = cluster_pos - cues->segment_offset; |
56f17407 |
cues->entries[cues->num_entries].relative_pos = relative_pos;
cues->entries[cues->num_entries++].duration = duration; |
6364d534 |
return 0;
}
|
925f7980 |
static int64_t mkv_write_cues(AVFormatContext *s, mkv_cues *cues, mkv_track *tracks, int num_tracks) |
6364d534 |
{ |
925f7980 |
AVIOContext *pb = s->pb; |
baf71dca |
ebml_master cues_element; |
bc5c918e |
int64_t currentpos; |
6364d534 |
int i, j;
|
a2704c97 |
currentpos = avio_tell(pb); |
baf71dca |
cues_element = start_ebml_master(pb, MATROSKA_ID_CUES, 0); |
6364d534 |
for (i = 0; i < cues->num_entries; i++) { |
baf71dca |
ebml_master cuepoint, track_positions; |
6364d534 |
mkv_cuepoint *entry = &cues->entries[i];
uint64_t pts = entry->pts; |
64d029de |
int ctp_nb = 0; |
6364d534 |
|
64d029de |
// Calculate the number of entries, so we know the element size
for (j = 0; j < num_tracks; j++)
tracks[j].has_cue = 0;
for (j = 0; j < cues->num_entries - i && entry[j].pts == pts; j++) {
int tracknum = entry[j].stream_idx;
av_assert0(tracknum>=0 && tracknum<num_tracks);
if (tracks[tracknum].has_cue && s->streams[tracknum]->codec->codec_type != AVMEDIA_TYPE_SUBTITLE)
continue;
tracks[tracknum].has_cue = 1;
ctp_nb ++;
}
cuepoint = start_ebml_master(pb, MATROSKA_ID_POINTENTRY, MAX_CUEPOINT_SIZE(ctp_nb)); |
6364d534 |
put_ebml_uint(pb, MATROSKA_ID_CUETIME, pts);
// put all the entries from different tracks that have the exact same
// timestamp into the same CuePoint |
271f4112 |
for (j = 0; j < num_tracks; j++)
tracks[j].has_cue = 0; |
6364d534 |
for (j = 0; j < cues->num_entries - i && entry[j].pts == pts; j++) { |
37cef8c7 |
int tracknum = entry[j].stream_idx; |
285485ac |
av_assert0(tracknum>=0 && tracknum<num_tracks); |
925f7980 |
if (tracks[tracknum].has_cue && s->streams[tracknum]->codec->codec_type != AVMEDIA_TYPE_SUBTITLE) |
271f4112 |
continue; |
285485ac |
tracks[tracknum].has_cue = 1; |
baf71dca |
track_positions = start_ebml_master(pb, MATROSKA_ID_CUETRACKPOSITION, MAX_CUETRACKPOS_SIZE); |
c5f3cc40 |
put_ebml_uint(pb, MATROSKA_ID_CUETRACK , entry[j].tracknum );
put_ebml_uint(pb, MATROSKA_ID_CUECLUSTERPOSITION , entry[j].cluster_pos);
put_ebml_uint(pb, MATROSKA_ID_CUERELATIVEPOSITION, entry[j].relative_pos); |
56f17407 |
if (entry[j].duration != -1)
put_ebml_uint(pb, MATROSKA_ID_CUEDURATION , entry[j].duration); |
6364d534 |
end_ebml_master(pb, track_positions);
}
i += j - 1;
end_ebml_master(pb, cuepoint);
}
end_ebml_master(pb, cues_element);
return currentpos;
}
|
ae628ec1 |
static int put_xiph_codecpriv(AVFormatContext *s, AVIOContext *pb, AVCodecContext *codec) |
56d55a3b |
{ |
ad2deb02 |
const uint8_t *header_start[3]; |
56d55a3b |
int header_len[3];
int first_header_size; |
86be6637 |
int j; |
56d55a3b |
|
36ef5369 |
if (codec->codec_id == AV_CODEC_ID_VORBIS) |
56d55a3b |
first_header_size = 30;
else
first_header_size = 42;
|
357db4c2 |
if (avpriv_split_xiph_headers(codec->extradata, codec->extradata_size, |
56d55a3b |
first_header_size, header_start, header_len) < 0) { |
b62a33d0 |
av_log(s, AV_LOG_ERROR, "Extradata corrupt.\n"); |
56d55a3b |
return -1;
}
|
77eb5504 |
avio_w8(pb, 2); // number packets - 1 |
56d55a3b |
for (j = 0; j < 2; j++) { |
86be6637 |
put_xiph_size(pb, header_len[j]); |
56d55a3b |
}
for (j = 0; j < 3; j++) |
77eb5504 |
avio_write(pb, header_start[j], header_len[j]); |
801edb42 |
return 0; |
56d55a3b |
} |
67143c0f |
|
01656fd4 |
static int put_wv_codecpriv(AVIOContext *pb, AVCodecContext *codec)
{
if (codec->extradata && codec->extradata_size == 2)
avio_write(pb, codec->extradata, 2);
else
avio_wl16(pb, 0x403); // fallback to the version mentioned in matroska specs
return 0;
}
|
106b62f4 |
static int put_flac_codecpriv(AVFormatContext *s,
AVIOContext *pb, AVCodecContext *codec)
{
int write_comment = (codec->channel_layout &&
!(codec->channel_layout & ~0x3ffffULL) &&
!ff_flac_is_native_layout(codec->channel_layout)); |
e19d48df |
int ret = ff_flac_write_header(pb, codec->extradata, codec->extradata_size,
!write_comment); |
106b62f4 |
if (ret < 0)
return ret;
if (write_comment) {
const char *vendor = (s->flags & AVFMT_FLAG_BITEXACT) ? |
cf3a038f |
"Lavf" : LIBAVFORMAT_IDENT; |
106b62f4 |
AVDictionary *dict = NULL;
uint8_t buf[32], *data, *p; |
66f26b3e |
int64_t len; |
106b62f4 |
snprintf(buf, sizeof(buf), "0x%"PRIx64, codec->channel_layout);
av_dict_set(&dict, "WAVEFORMATEXTENSIBLE_CHANNEL_MASK", buf, 0);
len = ff_vorbiscomment_length(dict, vendor); |
66f26b3e |
if (len >= ((1<<24) - 4))
return AVERROR(EINVAL);
|
106b62f4 |
data = av_malloc(len + 4);
if (!data) {
av_dict_free(&dict);
return AVERROR(ENOMEM);
}
data[0] = 0x84;
AV_WB24(data + 1, len);
p = data + 4;
ff_vorbiscomment_write(&p, &dict, vendor);
avio_write(pb, data, len + 4);
av_freep(&data);
av_dict_free(&dict);
}
return 0;
}
|
51da7d02 |
static int get_aac_sample_rates(AVFormatContext *s, AVCodecContext *codec,
int *sample_rate, int *output_sample_rate) |
07918a22 |
{ |
bc17bd90 |
MPEG4AudioConfig mp4ac; |
07918a22 |
|
fd095539 |
if (avpriv_mpeg4audio_get_config(&mp4ac, codec->extradata,
codec->extradata_size * 8, 1) < 0) { |
51da7d02 |
av_log(s, AV_LOG_ERROR, |
f1f6156b |
"Error parsing AAC extradata, unable to determine samplerate.\n"); |
51da7d02 |
return AVERROR(EINVAL); |
07918a22 |
}
|
bc17bd90 |
*sample_rate = mp4ac.sample_rate;
*output_sample_rate = mp4ac.ext_sample_rate; |
51da7d02 |
return 0; |
07918a22 |
}
|
b75a1f98 |
static int mkv_write_native_codecprivate(AVFormatContext *s,
AVCodecContext *codec,
AVIOContext *dyn_cp)
{
switch (codec->codec_id) {
case AV_CODEC_ID_VORBIS:
case AV_CODEC_ID_THEORA:
return put_xiph_codecpriv(s, dyn_cp, codec);
case AV_CODEC_ID_FLAC:
return put_flac_codecpriv(s, dyn_cp, codec);
case AV_CODEC_ID_WAVPACK:
return put_wv_codecpriv(dyn_cp, codec);
case AV_CODEC_ID_H264:
return ff_isom_write_avcc(dyn_cp, codec->extradata,
codec->extradata_size);
case AV_CODEC_ID_HEVC: |
7a5356c7 |
ff_isom_write_hvcc(dyn_cp, codec->extradata,
codec->extradata_size, 0);
return 0; |
b75a1f98 |
case AV_CODEC_ID_ALAC:
if (codec->extradata_size < 36) {
av_log(s, AV_LOG_ERROR,
"Invalid extradata found, ALAC expects a 36-byte "
"QuickTime atom.");
return AVERROR_INVALIDDATA;
} else
avio_write(dyn_cp, codec->extradata + 12,
codec->extradata_size - 12);
break;
default: |
ee78b0c2 |
if (codec->codec_id == AV_CODEC_ID_PRORES &&
ff_codec_get_id(ff_codec_movvideo_tags, codec->codec_tag) == AV_CODEC_ID_PRORES) {
avio_wl32(dyn_cp, codec->codec_tag);
} else if (codec->extradata_size && codec->codec_id != AV_CODEC_ID_TTA)
avio_write(dyn_cp, codec->extradata, codec->extradata_size); |
b75a1f98 |
}
return 0;
}
|
f1f6156b |
static int mkv_write_codecprivate(AVFormatContext *s, AVIOContext *pb,
AVCodecContext *codec, int native_id,
int qt_id) |
5c559894 |
{ |
ae628ec1 |
AVIOContext *dyn_cp; |
46d18a88 |
uint8_t *codecpriv; |
899681cd |
int ret, codecpriv_size; |
46d18a88 |
|
b92c5452 |
ret = avio_open_dyn_buf(&dyn_cp); |
f1f6156b |
if (ret < 0) |
899681cd |
return ret; |
5c559894 |
if (native_id) { |
b75a1f98 |
ret = mkv_write_native_codecprivate(s, codec, dyn_cp); |
72415b2a |
} else if (codec->codec_type == AVMEDIA_TYPE_VIDEO) { |
f009e36f |
if (qt_id) {
if (!codec->codec_tag) |
f1f6156b |
codec->codec_tag = ff_codec_get_tag(ff_codec_movvideo_tags,
codec->codec_id); |
8456bd2c |
if (codec->extradata_size) {
if ( ff_codec_get_id(ff_codec_movvideo_tags, codec->codec_tag) == codec->codec_id |
8365287e |
&& ff_codec_get_id(ff_codec_movvideo_tags, AV_RL32(codec->extradata + 4)) != codec->codec_id |
8456bd2c |
) {
int i;
avio_wb32(dyn_cp, 0x5a + codec->extradata_size);
avio_wl32(dyn_cp, codec->codec_tag); |
8365287e |
for(i = 0; i < 0x5a - 8; i++) |
8456bd2c |
avio_w8(dyn_cp, 0);
} |
77eb5504 |
avio_write(dyn_cp, codec->extradata, codec->extradata_size); |
8456bd2c |
} |
f009e36f |
} else { |
f5f6e594 |
if (!ff_codec_get_tag(ff_codec_bmp_tags, codec->codec_id))
av_log(s, AV_LOG_WARNING, "codec %s is not supported by this format\n",
avcodec_get_name(codec->codec_id));
|
434a70b8 |
if (!codec->codec_tag) |
f1f6156b |
codec->codec_tag = ff_codec_get_tag(ff_codec_bmp_tags,
codec->codec_id); |
e2fb12b6 |
if (!codec->codec_tag && codec->codec_id != AV_CODEC_ID_RAWVIDEO) { |
6b171f04 |
av_log(s, AV_LOG_ERROR, "No bmp codec tag found for codec %s\n",
avcodec_get_name(codec->codec_id));
ret = AVERROR(EINVAL); |
434a70b8 |
} |
5c559894 |
|
fcbb9471 |
ff_put_bmp_header(dyn_cp, codec, ff_codec_bmp_tags, 0, 0); |
f009e36f |
} |
72415b2a |
} else if (codec->codec_type == AVMEDIA_TYPE_AUDIO) { |
4896dd57 |
unsigned int tag;
tag = ff_codec_get_tag(ff_codec_wav_tags, codec->codec_id);
if (!tag) { |
6b171f04 |
av_log(s, AV_LOG_ERROR, "No wav codec tag found for codec %s\n",
avcodec_get_name(codec->codec_id));
ret = AVERROR(EINVAL); |
5c559894 |
} |
4896dd57 |
if (!codec->codec_tag)
codec->codec_tag = tag; |
5c559894 |
|
5e7d21c7 |
ff_put_wav_header(dyn_cp, codec, FF_PUT_WAV_HEADER_FORCE_WAVEFORMATEX); |
5c559894 |
} |
46d18a88 |
|
6dc7d80d |
codecpriv_size = avio_close_dyn_buf(dyn_cp, &codecpriv); |
46d18a88 |
if (codecpriv_size) |
f1f6156b |
put_ebml_binary(pb, MATROSKA_ID_CODECPRIVATE, codecpriv,
codecpriv_size); |
46d18a88 |
av_free(codecpriv);
return ret; |
5c559894 |
}
|
39cd9fdb |
|
4d686fb7 |
static int mkv_write_stereo_mode(AVFormatContext *s, AVIOContext *pb, |
f769671f |
AVStream *st, int mode, int *h_width, int *h_height) |
48e64324 |
{ |
4d686fb7 |
int i; |
39cd9fdb |
int ret = 0; |
4d686fb7 |
AVDictionaryEntry *tag;
MatroskaVideoStereoModeType format = MATROSKA_VIDEO_STEREOMODE_TYPE_NB;
|
f769671f |
*h_width = 1;
*h_height = 1; |
4d686fb7 |
// convert metadata into proper side data and add it to the stream |
39cd9fdb |
if ((tag = av_dict_get(st->metadata, "stereo_mode", NULL, 0)) ||
(tag = av_dict_get( s->metadata, "stereo_mode", NULL, 0))) { |
4d686fb7 |
int stereo_mode = atoi(tag->value); |
39cd9fdb |
|
37520a91 |
for (i=0; i<MATROSKA_VIDEO_STEREOMODE_TYPE_NB; i++) |
39cd9fdb |
if (!strcmp(tag->value, ff_matroska_video_stereo_mode[i])){
stereo_mode = i;
break;
}
|
4d686fb7 |
if (stereo_mode < MATROSKA_VIDEO_STEREOMODE_TYPE_NB &&
stereo_mode != 10 && stereo_mode != 12) {
int ret = ff_mkv_stereo3d_conv(st, stereo_mode);
if (ret < 0)
return ret;
}
} |
48e64324 |
|
090c67d5 |
// iterate to find the stereo3d side data |
4d686fb7 |
for (i = 0; i < st->nb_side_data; i++) {
AVPacketSideData sd = st->side_data[i];
if (sd.type == AV_PKT_DATA_STEREO3D) {
AVStereo3D *stereo = (AVStereo3D *)sd.data;
switch (stereo->type) {
case AV_STEREO3D_2D:
format = MATROSKA_VIDEO_STEREOMODE_TYPE_MONO;
break;
case AV_STEREO3D_SIDEBYSIDE:
format = (stereo->flags & AV_STEREO3D_FLAG_INVERT)
? MATROSKA_VIDEO_STEREOMODE_TYPE_RIGHT_LEFT
: MATROSKA_VIDEO_STEREOMODE_TYPE_LEFT_RIGHT; |
f769671f |
*h_width = 2; |
4d686fb7 |
break;
case AV_STEREO3D_TOPBOTTOM:
format = MATROSKA_VIDEO_STEREOMODE_TYPE_TOP_BOTTOM;
if (stereo->flags & AV_STEREO3D_FLAG_INVERT)
format--; |
f769671f |
*h_height = 2; |
4d686fb7 |
break;
case AV_STEREO3D_CHECKERBOARD:
format = MATROSKA_VIDEO_STEREOMODE_TYPE_CHECKERBOARD_LR;
if (stereo->flags & AV_STEREO3D_FLAG_INVERT)
format--;
break;
case AV_STEREO3D_LINES:
format = MATROSKA_VIDEO_STEREOMODE_TYPE_ROW_INTERLEAVED_LR;
if (stereo->flags & AV_STEREO3D_FLAG_INVERT)
format--; |
f769671f |
*h_height = 2; |
4d686fb7 |
break;
case AV_STEREO3D_COLUMNS:
format = MATROSKA_VIDEO_STEREOMODE_TYPE_COL_INTERLEAVED_LR;
if (stereo->flags & AV_STEREO3D_FLAG_INVERT)
format--; |
f769671f |
*h_width = 2; |
4d686fb7 |
break;
case AV_STEREO3D_FRAMESEQUENCE:
format = MATROSKA_VIDEO_STEREOMODE_TYPE_BOTH_EYES_BLOCK_LR;
if (stereo->flags & AV_STEREO3D_FLAG_INVERT)
format++;
break;
}
break;
} |
48e64324 |
}
|
39cd9fdb |
if (format == MATROSKA_VIDEO_STEREOMODE_TYPE_NB)
return ret;
|
090c67d5 |
// if webm, do not write unsupported modes |
39cd9fdb |
if ((mode == MODE_WEBM &&
format > MATROSKA_VIDEO_STEREOMODE_TYPE_TOP_BOTTOM &&
format != MATROSKA_VIDEO_STEREOMODE_TYPE_RIGHT_LEFT) |
37520a91 |
|| format >= MATROSKA_VIDEO_STEREOMODE_TYPE_NB) { |
141ee109 |
av_log(s, AV_LOG_ERROR,
"The specified stereo mode is not valid.\n"); |
4d686fb7 |
format = MATROSKA_VIDEO_STEREOMODE_TYPE_NB; |
141ee109 |
return AVERROR(EINVAL); |
39cd9fdb |
} |
48e64324 |
|
090c67d5 |
// write StereoMode if format is valid |
39cd9fdb |
put_ebml_uint(pb, MATROSKA_ID_VIDEOSTEREOMODE, format); |
4d686fb7 |
|
39cd9fdb |
return ret; |
48e64324 |
}
|
b75a1f98 |
static int mkv_write_track(AVFormatContext *s, MatroskaMuxContext *mkv, |
ee78b0c2 |
int i, AVIOContext *pb, int default_stream_exists) |
67143c0f |
{ |
b75a1f98 |
AVStream *st = s->streams[i];
AVCodecContext *codec = st->codec;
ebml_master subinfo, track;
int native_id = 0;
int qt_id = 0;
int bit_depth = av_get_bits_per_sample(codec->codec_id);
int sample_rate = codec->sample_rate;
int output_sample_rate = 0; |
ee78b0c2 |
int display_width_div = 1;
int display_height_div = 1; |
b75a1f98 |
int j, ret;
AVDictionaryEntry *tag;
if (codec->codec_type == AVMEDIA_TYPE_ATTACHMENT) {
mkv->have_attachments = 1;
return 0; |
91f35929 |
} |
c7a63a52 |
|
ee78b0c2 |
if (!bit_depth && codec->codec_id != AV_CODEC_ID_ADPCM_G726) |
b75a1f98 |
bit_depth = av_get_bytes_per_sample(codec->sample_fmt) << 3; |
ee78b0c2 |
if (!bit_depth)
bit_depth = codec->bits_per_coded_sample; |
967d815a |
|
51da7d02 |
if (codec->codec_id == AV_CODEC_ID_AAC) {
ret = get_aac_sample_rates(s, codec, &sample_rate, &output_sample_rate);
if (ret < 0)
return ret;
} |
c7a63a52 |
|
b75a1f98 |
track = start_ebml_master(pb, MATROSKA_ID_TRACKENTRY, 0); |
ee78b0c2 |
put_ebml_uint (pb, MATROSKA_ID_TRACKNUMBER,
mkv->is_dash ? mkv->dash_track_number : i + 1);
put_ebml_uint (pb, MATROSKA_ID_TRACKUID,
mkv->is_dash ? mkv->dash_track_number : i + 1); |
b75a1f98 |
put_ebml_uint (pb, MATROSKA_ID_TRACKFLAGLACING , 0); // no lacing (yet) |
a6da1aa0 |
|
b75a1f98 |
if ((tag = av_dict_get(st->metadata, "title", NULL, 0)))
put_ebml_string(pb, MATROSKA_ID_TRACKNAME, tag->value);
tag = av_dict_get(st->metadata, "language", NULL, 0); |
ee78b0c2 |
if (mkv->mode != MODE_WEBM || codec->codec_id != AV_CODEC_ID_WEBVTT) { |
73b7a360 |
put_ebml_string(pb, MATROSKA_ID_TRACKLANGUAGE, tag && tag->value ? tag->value:"und"); |
ee78b0c2 |
} else if (tag && tag->value) {
put_ebml_string(pb, MATROSKA_ID_TRACKLANGUAGE, tag->value);
} |
f622c4f4 |
|
b75a1f98 |
// The default value for TRACKFLAGDEFAULT is 1, so add element
// if we need to clear it. |
ee78b0c2 |
if (default_stream_exists && !(st->disposition & AV_DISPOSITION_DEFAULT)) |
b75a1f98 |
put_ebml_uint(pb, MATROSKA_ID_TRACKFLAGDEFAULT, !!(st->disposition & AV_DISPOSITION_DEFAULT)); |
f622c4f4 |
|
ee78b0c2 |
if (st->disposition & AV_DISPOSITION_FORCED)
put_ebml_uint(pb, MATROSKA_ID_TRACKFLAGFORCED, 1);
if (mkv->mode == MODE_WEBM && codec->codec_id == AV_CODEC_ID_WEBVTT) {
const char *codec_id;
if (st->disposition & AV_DISPOSITION_CAPTIONS) {
codec_id = "D_WEBVTT/CAPTIONS";
native_id = MATROSKA_TRACK_TYPE_SUBTITLE;
} else if (st->disposition & AV_DISPOSITION_DESCRIPTIONS) {
codec_id = "D_WEBVTT/DESCRIPTIONS";
native_id = MATROSKA_TRACK_TYPE_METADATA;
} else if (st->disposition & AV_DISPOSITION_METADATA) {
codec_id = "D_WEBVTT/METADATA";
native_id = MATROSKA_TRACK_TYPE_METADATA; |
509642b4 |
} else { |
ee78b0c2 |
codec_id = "D_WEBVTT/SUBTITLES";
native_id = MATROSKA_TRACK_TYPE_SUBTITLE;
}
put_ebml_string(pb, MATROSKA_ID_CODECID, codec_id);
} else {
// look for a codec ID string specific to mkv to use,
// if none are found, use AVI codes
for (j = 0; ff_mkv_codec_tags[j].id != AV_CODEC_ID_NONE; j++) {
if (ff_mkv_codec_tags[j].id == codec->codec_id) {
put_ebml_string(pb, MATROSKA_ID_CODECID, ff_mkv_codec_tags[j].str);
native_id = 1;
break; |
f622c4f4 |
}
} |
7d60baa8 |
if (codec->codec_id == AV_CODEC_ID_RAWVIDEO && !codec->codec_tag) {
if (mkv->allow_raw_vfw) {
native_id = 0;
} else {
av_log(s, AV_LOG_ERROR, "Raw RGB is not supported Natively in Matroska, you can use AVI or NUT or\n"
"If you would like to store it anyway using VFW mode, enable allow_raw_vfw (-allow_raw_vfw 1)\n");
return AVERROR(EINVAL);
}
} |
ee78b0c2 |
} |
f622c4f4 |
|
4694c0bb |
if (codec->codec_type == AVMEDIA_TYPE_AUDIO && codec->initial_padding && codec->codec_id == AV_CODEC_ID_OPUS) { |
e6971db1 |
int64_t codecdelay = av_rescale_q(codec->initial_padding, |
c3c22bee |
(AVRational){ 1, 48000 }, |
e6971db1 |
(AVRational){ 1, 1000000000 });
if (codecdelay < 0) {
av_log(s, AV_LOG_ERROR, "Initial padding is invalid\n");
return AVERROR(EINVAL);
} |
4694c0bb |
// mkv->tracks[i].ts_offset = av_rescale_q(codec->initial_padding, |
ee78b0c2 |
// (AVRational){ 1, codec->sample_rate },
// st->time_base); |
a1aa37dd |
|
e6971db1 |
put_ebml_uint(pb, MATROSKA_ID_CODECDELAY, codecdelay); |
b75a1f98 |
} |
ee78b0c2 |
if (codec->codec_id == AV_CODEC_ID_OPUS) {
put_ebml_uint(pb, MATROSKA_ID_SEEKPREROLL, OPUS_SEEK_PREROLL); |
b75a1f98 |
} |
571efd97 |
|
b75a1f98 |
if (mkv->mode == MODE_WEBM && !(codec->codec_id == AV_CODEC_ID_VP8 ||
codec->codec_id == AV_CODEC_ID_VP9 ||
codec->codec_id == AV_CODEC_ID_OPUS || |
ee78b0c2 |
codec->codec_id == AV_CODEC_ID_VORBIS ||
codec->codec_id == AV_CODEC_ID_WEBVTT)) { |
b75a1f98 |
av_log(s, AV_LOG_ERROR, |
ee78b0c2 |
"Only VP8 or VP9 video and Vorbis or Opus audio and WebVTT subtitles are supported for WebM.\n"); |
b75a1f98 |
return AVERROR(EINVAL);
} |
a1aa37dd |
|
b75a1f98 |
switch (codec->codec_type) {
case AVMEDIA_TYPE_VIDEO:
put_ebml_uint(pb, MATROSKA_ID_TRACKTYPE, MATROSKA_TRACK_TYPE_VIDEO); |
ee78b0c2 |
if( st->avg_frame_rate.num > 0 && st->avg_frame_rate.den > 0 |
cf86fd00 |
&& av_cmp_q(av_inv_q(st->avg_frame_rate), codec->time_base) > 0)
put_ebml_uint(pb, MATROSKA_ID_TRACKDEFAULTDURATION, 1000000000LL * st->avg_frame_rate.den / st->avg_frame_rate.num); |
ee78b0c2 |
else |
cf86fd00 |
put_ebml_uint(pb, MATROSKA_ID_TRACKDEFAULTDURATION, 1000000000LL * codec->time_base.num / codec->time_base.den); |
b75a1f98 |
if (!native_id &&
ff_codec_get_tag(ff_codec_movvideo_tags, codec->codec_id) && |
e2fb12b6 |
((!ff_codec_get_tag(ff_codec_bmp_tags, codec->codec_id) && codec->codec_id != AV_CODEC_ID_RAWVIDEO) || |
b75a1f98 |
codec->codec_id == AV_CODEC_ID_SVQ1 ||
codec->codec_id == AV_CODEC_ID_SVQ3 ||
codec->codec_id == AV_CODEC_ID_CINEPAK))
qt_id = 1;
if (qt_id)
put_ebml_string(pb, MATROSKA_ID_CODECID, "V_QUICKTIME");
else if (!native_id) {
// if there is no mkv-specific codec ID, use VFW mode
put_ebml_string(pb, MATROSKA_ID_CODECID, "V_MS/VFW/FOURCC");
mkv->tracks[i].write_dts = 1; |
9d4fdfe2 |
s->internal->avoid_negative_ts_use_pts = 0; |
316d6c15 |
}
|
b75a1f98 |
subinfo = start_ebml_master(pb, MATROSKA_ID_TRACKVIDEO, 0);
// XXX: interlace flag?
put_ebml_uint (pb, MATROSKA_ID_VIDEOPIXELWIDTH , codec->width);
put_ebml_uint (pb, MATROSKA_ID_VIDEOPIXELHEIGHT, codec->height); |
c301d5ae |
|
4d686fb7 |
// check both side data and metadata for stereo information,
// write the result to the bitstream if any is found |
f769671f |
ret = mkv_write_stereo_mode(s, pb, st, mkv->mode,
&display_width_div,
&display_height_div); |
4d686fb7 |
if (ret < 0)
return ret;
|
c2c4cee8 |
if (((tag = av_dict_get(st->metadata, "alpha_mode", NULL, 0)) && atoi(tag->value)) ||
((tag = av_dict_get( s->metadata, "alpha_mode", NULL, 0)) && atoi(tag->value)) || |
ee78b0c2 |
(codec->pix_fmt == AV_PIX_FMT_YUVA420P)) {
put_ebml_uint(pb, MATROSKA_ID_VIDEOALPHAMODE, 1); |
b75a1f98 |
} |
509642b4 |
|
f769671f |
// write DisplayWidth and DisplayHeight, they contain the size of
// a single source view and/or the display aspect ratio |
b75a1f98 |
if (st->sample_aspect_ratio.num) { |
ee78b0c2 |
int64_t d_width = av_rescale(codec->width, st->sample_aspect_ratio.num, st->sample_aspect_ratio.den);
if (d_width > INT_MAX) {
av_log(s, AV_LOG_ERROR, "Overflow in display width\n");
return AVERROR(EINVAL); |
f1f6156b |
} |
ee78b0c2 |
put_ebml_uint(pb, MATROSKA_ID_VIDEODISPLAYWIDTH , d_width / display_width_div);
put_ebml_uint(pb, MATROSKA_ID_VIDEODISPLAYHEIGHT, codec->height / display_height_div);
} else if (display_width_div != 1 || display_height_div != 1) {
put_ebml_uint(pb, MATROSKA_ID_VIDEODISPLAYWIDTH , codec->width / display_width_div);
put_ebml_uint(pb, MATROSKA_ID_VIDEODISPLAYHEIGHT, codec->height / display_height_div); |
f622c4f4 |
} |
509642b4 |
|
ee78b0c2 |
if (codec->codec_id == AV_CODEC_ID_RAWVIDEO) {
uint32_t color_space = av_le2ne32(codec->codec_tag);
put_ebml_binary(pb, MATROSKA_ID_VIDEOCOLORSPACE, &color_space, sizeof(color_space)); |
509642b4 |
} |
f769671f |
|
b75a1f98 |
end_ebml_master(pb, subinfo);
break;
case AVMEDIA_TYPE_AUDIO:
put_ebml_uint(pb, MATROSKA_ID_TRACKTYPE, MATROSKA_TRACK_TYPE_AUDIO);
if (!native_id)
// no mkv-specific ID, use ACM mode
put_ebml_string(pb, MATROSKA_ID_CODECID, "A_MS/ACM");
subinfo = start_ebml_master(pb, MATROSKA_ID_TRACKAUDIO, 0);
put_ebml_uint (pb, MATROSKA_ID_AUDIOCHANNELS , codec->channels);
put_ebml_float (pb, MATROSKA_ID_AUDIOSAMPLINGFREQ, sample_rate);
if (output_sample_rate)
put_ebml_float(pb, MATROSKA_ID_AUDIOOUTSAMPLINGFREQ, output_sample_rate);
if (bit_depth)
put_ebml_uint(pb, MATROSKA_ID_AUDIOBITDEPTH, bit_depth);
end_ebml_master(pb, subinfo);
break;
case AVMEDIA_TYPE_SUBTITLE:
if (!native_id) {
av_log(s, AV_LOG_ERROR, "Subtitle codec %d is not supported.\n", codec->codec_id);
return AVERROR(ENOSYS);
} |
ee78b0c2 |
if (mkv->mode != MODE_WEBM || codec->codec_id != AV_CODEC_ID_WEBVTT)
native_id = MATROSKA_TRACK_TYPE_SUBTITLE;
put_ebml_uint(pb, MATROSKA_ID_TRACKTYPE, native_id); |
b75a1f98 |
break;
default:
av_log(s, AV_LOG_ERROR, "Only audio, video, and subtitles are supported for Matroska.\n"); |
ee78b0c2 |
return AVERROR(EINVAL);
}
if (mkv->mode != MODE_WEBM || codec->codec_id != AV_CODEC_ID_WEBVTT) {
ret = mkv_write_codecprivate(s, pb, codec, native_id, qt_id);
if (ret < 0)
return ret; |
b75a1f98 |
} |
316d6c15 |
|
b75a1f98 |
end_ebml_master(pb, track); |
c301d5ae |
|
b75a1f98 |
return 0;
} |
f1f6156b |
|
b75a1f98 |
static int mkv_write_tracks(AVFormatContext *s)
{
MatroskaMuxContext *mkv = s->priv_data;
AVIOContext *pb = s->pb;
ebml_master tracks; |
ee78b0c2 |
int i, ret, default_stream_exists = 0; |
5c559894 |
|
b75a1f98 |
ret = mkv_add_seekhead_entry(mkv->main_seekhead, MATROSKA_ID_TRACKS, avio_tell(pb));
if (ret < 0)
return ret;
tracks = start_ebml_master(pb, MATROSKA_ID_TRACKS, 0);
for (i = 0; i < s->nb_streams; i++) { |
ee78b0c2 |
AVStream *st = s->streams[i];
default_stream_exists |= st->disposition & AV_DISPOSITION_DEFAULT;
}
for (i = 0; i < s->nb_streams; i++) {
ret = mkv_write_track(s, mkv, i, pb, default_stream_exists); |
f1f6156b |
if (ret < 0)
return ret; |
67143c0f |
}
end_ebml_master(pb, tracks); |
801edb42 |
return 0; |
5034ab90 |
}
|
2bd0758e |
static int mkv_write_chapters(AVFormatContext *s)
{
MatroskaMuxContext *mkv = s->priv_data; |
ae628ec1 |
AVIOContext *pb = s->pb; |
2bd0758e |
ebml_master chapters, editionentry;
AVRational scale = {1, 1E9};
int i, ret;
|
26b241c0 |
if (!s->nb_chapters || mkv->wrote_chapters) |
2bd0758e |
return 0;
|
a2704c97 |
ret = mkv_add_seekhead_entry(mkv->main_seekhead, MATROSKA_ID_CHAPTERS, avio_tell(pb)); |
2bd0758e |
if (ret < 0) return ret;
chapters = start_ebml_master(pb, MATROSKA_ID_CHAPTERS , 0);
editionentry = start_ebml_master(pb, MATROSKA_ID_EDITIONENTRY, 0);
put_ebml_uint(pb, MATROSKA_ID_EDITIONFLAGDEFAULT, 1);
put_ebml_uint(pb, MATROSKA_ID_EDITIONFLAGHIDDEN , 0);
for (i = 0; i < s->nb_chapters; i++) {
ebml_master chapteratom, chapterdisplay;
AVChapter *c = s->chapters[i]; |
a4cd057b |
int64_t chapterstart = av_rescale_q(c->start, c->time_base, scale);
int64_t chapterend = av_rescale_q(c->end, c->time_base, scale); |
d2d67e42 |
AVDictionaryEntry *t = NULL; |
9f25a109 |
if (chapterstart < 0 || chapterstart > chapterend || chapterend < 0) { |
9272c965 |
av_log(s, AV_LOG_ERROR,
"Invalid chapter start (%"PRId64") or end (%"PRId64").\n", |
9f25a109 |
chapterstart, chapterend); |
5dc47a2b |
return AVERROR_INVALIDDATA; |
9f25a109 |
} |
2bd0758e |
chapteratom = start_ebml_master(pb, MATROSKA_ID_CHAPTERATOM, 0); |
07704c61 |
put_ebml_uint(pb, MATROSKA_ID_CHAPTERUID, c->id + mkv->chapter_id_offset); |
5dc47a2b |
put_ebml_uint(pb, MATROSKA_ID_CHAPTERTIMESTART, chapterstart);
put_ebml_uint(pb, MATROSKA_ID_CHAPTERTIMEEND, chapterend); |
2bd0758e |
put_ebml_uint(pb, MATROSKA_ID_CHAPTERFLAGHIDDEN , 0);
put_ebml_uint(pb, MATROSKA_ID_CHAPTERFLAGENABLED, 1); |
d2d67e42 |
if ((t = av_dict_get(c->metadata, "title", NULL, 0))) { |
2bd0758e |
chapterdisplay = start_ebml_master(pb, MATROSKA_ID_CHAPTERDISPLAY, 0);
put_ebml_string(pb, MATROSKA_ID_CHAPSTRING, t->value);
put_ebml_string(pb, MATROSKA_ID_CHAPLANG , "und");
end_ebml_master(pb, chapterdisplay);
}
end_ebml_master(pb, chapteratom);
}
end_ebml_master(pb, editionentry);
end_ebml_master(pb, chapters); |
26b241c0 |
mkv->wrote_chapters = 1; |
2bd0758e |
return 0;
}
|
b1306823 |
static int mkv_write_simpletag(AVIOContext *pb, AVDictionaryEntry *t) |
9b75309c |
{
uint8_t *key = av_strdup(t->key);
uint8_t *p = key;
const uint8_t *lang = NULL;
ebml_master tag;
|
b1306823 |
if (!key)
return AVERROR(ENOMEM);
|
9b75309c |
if ((p = strrchr(p, '-')) &&
(lang = av_convert_lang_to(p + 1, AV_LANG_ISO639_2_BIBL)))
*p = 0;
p = key;
while (*p) {
if (*p == ' ')
*p = '_';
else if (*p >= 'a' && *p <= 'z')
*p -= 'a' - 'A';
p++;
}
tag = start_ebml_master(pb, MATROSKA_ID_SIMPLETAG, 0);
put_ebml_string(pb, MATROSKA_ID_TAGNAME, key);
if (lang)
put_ebml_string(pb, MATROSKA_ID_TAGLANG, lang);
put_ebml_string(pb, MATROSKA_ID_TAGSTRING, t->value);
end_ebml_master(pb, tag);
av_freep(&key); |
b1306823 |
return 0; |
9b75309c |
}
|
31852540 |
static int mkv_write_tag_targets(AVFormatContext *s,
unsigned int elementid, unsigned int uid,
ebml_master *tags, ebml_master* tag) |
9b75309c |
{
MatroskaMuxContext *mkv = s->priv_data; |
31852540 |
ebml_master targets; |
9b75309c |
int ret;
if (!tags->pos) { |
a2704c97 |
ret = mkv_add_seekhead_entry(mkv->main_seekhead, MATROSKA_ID_TAGS, avio_tell(s->pb)); |
9b75309c |
if (ret < 0) return ret;
*tags = start_ebml_master(s->pb, MATROSKA_ID_TAGS, 0);
}
|
31852540 |
*tag = start_ebml_master(s->pb, MATROSKA_ID_TAG, 0); |
9b75309c |
targets = start_ebml_master(s->pb, MATROSKA_ID_TAGTARGETS, 0);
if (elementid)
put_ebml_uint(s->pb, elementid, uid);
end_ebml_master(s->pb, targets); |
31852540 |
return 0;
}
static int mkv_write_tag(AVFormatContext *s, AVDictionary *m, unsigned int elementid,
unsigned int uid, ebml_master *tags)
{
ebml_master tag;
int ret;
AVDictionaryEntry *t = NULL;
ret = mkv_write_tag_targets(s, elementid, uid, tags, &tag);
if (ret < 0)
return ret; |
9b75309c |
|
b1306823 |
while ((t = av_dict_get(m, "", t, AV_DICT_IGNORE_SUFFIX))) { |
0092c1dd |
if (av_strcasecmp(t->key, "title") && |
4cb68141 |
av_strcasecmp(t->key, "stereo_mode") && |
66e85a18 |
av_strcasecmp(t->key, "creation_time") && |
f56a0855 |
av_strcasecmp(t->key, "encoding_tool") &&
(elementid != MATROSKA_ID_TAGTARGETS_TRACKUID ||
av_strcasecmp(t->key, "language"))) { |
b1306823 |
ret = mkv_write_simpletag(s->pb, t);
if (ret < 0)
return ret;
}
} |
9b75309c |
end_ebml_master(s->pb, tag);
return 0;
}
|
088ed531 |
static int mkv_check_tag(AVDictionary *m)
{
AVDictionaryEntry *t = NULL;
while ((t = av_dict_get(m, "", t, AV_DICT_IGNORE_SUFFIX)))
if (av_strcasecmp(t->key, "title") && av_strcasecmp(t->key, "stereo_mode")) |
066111bf |
return 1; |
088ed531 |
|
066111bf |
return 0; |
088ed531 |
}
|
9b75309c |
static int mkv_write_tags(AVFormatContext *s)
{ |
07704c61 |
MatroskaMuxContext *mkv = s->priv_data; |
9b75309c |
ebml_master tags = {0};
int i, ret;
|
03700d39 |
ff_metadata_conv_ctx(s, ff_mkv_metadata_conv, NULL);
|
088ed531 |
if (mkv_check_tag(s->metadata)) { |
9b75309c |
ret = mkv_write_tag(s, s->metadata, 0, 0, &tags);
if (ret < 0) return ret;
}
for (i = 0; i < s->nb_streams; i++) {
AVStream *st = s->streams[i];
|
088ed531 |
if (!mkv_check_tag(st->metadata)) |
9b75309c |
continue;
ret = mkv_write_tag(s, st->metadata, MATROSKA_ID_TAGTARGETS_TRACKUID, i + 1, &tags);
if (ret < 0) return ret;
}
|
31852540 |
if (!mkv->is_live) {
for (i = 0; i < s->nb_streams; i++) {
ebml_master tag_target;
ebml_master tag;
mkv_write_tag_targets(s, MATROSKA_ID_TAGTARGETS_TRACKUID, i + 1, &tags, &tag_target);
tag = start_ebml_master(s->pb, MATROSKA_ID_SIMPLETAG, 0);
put_ebml_string(s->pb, MATROSKA_ID_TAGNAME, "DURATION");
mkv->stream_duration_offsets[i] = avio_tell(s->pb);
// Reserve space to write duration as a 20-byte string.
// 2 (ebml id) + 1 (data size) + 20 (data)
put_ebml_void(s->pb, 23);
end_ebml_master(s->pb, tag);
end_ebml_master(s->pb, tag_target);
}
}
|
9b75309c |
for (i = 0; i < s->nb_chapters; i++) {
AVChapter *ch = s->chapters[i];
|
088ed531 |
if (!mkv_check_tag(ch->metadata)) |
9b75309c |
continue;
|
07704c61 |
ret = mkv_write_tag(s, ch->metadata, MATROSKA_ID_TAGTARGETS_CHAPTERUID, ch->id + mkv->chapter_id_offset, &tags); |
9b75309c |
if (ret < 0) return ret;
}
if (tags.pos)
end_ebml_master(s->pb, tags);
return 0;
}
|
c7a63a52 |
static int mkv_write_attachments(AVFormatContext *s)
{
MatroskaMuxContext *mkv = s->priv_data;
AVIOContext *pb = s->pb;
ebml_master attachments;
AVLFG c;
int i, ret;
if (!mkv->have_attachments)
return 0;
av_lfg_init(&c, av_get_random_seed());
ret = mkv_add_seekhead_entry(mkv->main_seekhead, MATROSKA_ID_ATTACHMENTS, avio_tell(pb));
if (ret < 0) return ret;
attachments = start_ebml_master(pb, MATROSKA_ID_ATTACHMENTS, 0);
for (i = 0; i < s->nb_streams; i++) {
AVStream *st = s->streams[i];
ebml_master attached_file;
AVDictionaryEntry *t;
const char *mimetype = NULL; |
8dbbaf56 |
uint64_t fileuid; |
c7a63a52 |
if (st->codec->codec_type != AVMEDIA_TYPE_ATTACHMENT)
continue;
attached_file = start_ebml_master(pb, MATROSKA_ID_ATTACHEDFILE, 0);
if (t = av_dict_get(st->metadata, "title", NULL, 0))
put_ebml_string(pb, MATROSKA_ID_FILEDESC, t->value);
if (!(t = av_dict_get(st->metadata, "filename", NULL, 0))) {
av_log(s, AV_LOG_ERROR, "Attachment stream %d has no filename tag.\n", i);
return AVERROR(EINVAL);
}
put_ebml_string(pb, MATROSKA_ID_FILENAME, t->value);
if (t = av_dict_get(st->metadata, "mimetype", NULL, 0))
mimetype = t->value; |
36ef5369 |
else if (st->codec->codec_id != AV_CODEC_ID_NONE ) { |
c7a63a52 |
int i; |
36ef5369 |
for (i = 0; ff_mkv_mime_tags[i].id != AV_CODEC_ID_NONE; i++) |
c7a63a52 |
if (ff_mkv_mime_tags[i].id == st->codec->codec_id) {
mimetype = ff_mkv_mime_tags[i].str;
break;
} |
511585ce |
for (i = 0; ff_mkv_image_mime_tags[i].id != AV_CODEC_ID_NONE; i++)
if (ff_mkv_image_mime_tags[i].id == st->codec->codec_id) {
mimetype = ff_mkv_image_mime_tags[i].str;
break;
} |
c7a63a52 |
}
if (!mimetype) {
av_log(s, AV_LOG_ERROR, "Attachment stream %d has no mimetype tag and "
"it cannot be deduced from the codec id.\n", i);
return AVERROR(EINVAL);
}
|
0421409c |
if (s->flags & AVFMT_FLAG_BITEXACT) { |
8dbbaf56 |
struct AVSHA *sha = av_sha_alloc();
uint8_t digest[20];
if (!sha)
return AVERROR(ENOMEM);
av_sha_init(sha, 160);
av_sha_update(sha, st->codec->extradata, st->codec->extradata_size);
av_sha_final(sha, digest);
av_free(sha);
fileuid = AV_RL64(digest);
} else {
fileuid = av_lfg_get(&c);
}
av_log(s, AV_LOG_VERBOSE, "Using %.16"PRIx64" for attachment %d\n",
fileuid, i);
|
c7a63a52 |
put_ebml_string(pb, MATROSKA_ID_FILEMIMETYPE, mimetype);
put_ebml_binary(pb, MATROSKA_ID_FILEDATA, st->codec->extradata, st->codec->extradata_size); |
8dbbaf56 |
put_ebml_uint(pb, MATROSKA_ID_FILEUID, fileuid); |
c7a63a52 |
end_ebml_master(pb, attached_file);
}
end_ebml_master(pb, attachments);
return 0;
}
|
5034ab90 |
static int mkv_write_header(AVFormatContext *s)
{
MatroskaMuxContext *mkv = s->priv_data; |
ae628ec1 |
AVIOContext *pb = s->pb; |
baf71dca |
ebml_master ebml_header, segment_info; |
d2d67e42 |
AVDictionaryEntry *tag; |
ab21acec |
int ret, i, version = 2; |
66e85a18 |
int64_t creation_time; |
5034ab90 |
|
f1f6156b |
if (!strcmp(s->oformat->name, "webm"))
mkv->mode = MODE_WEBM;
else
mkv->mode = MODE_MATROSKAv2; |
316d6c15 |
|
ab21acec |
if (mkv->mode != MODE_WEBM ||
av_dict_get(s->metadata, "stereo_mode", NULL, 0) ||
av_dict_get(s->metadata, "alpha_mode", NULL, 0))
version = 4;
for (i = 0; i < s->nb_streams; i++) { |
f02f231e |
if (s->streams[i]->codec->codec_id == AV_CODEC_ID_ATRAC3 ||
s->streams[i]->codec->codec_id == AV_CODEC_ID_COOK ||
s->streams[i]->codec->codec_id == AV_CODEC_ID_RA_288 ||
s->streams[i]->codec->codec_id == AV_CODEC_ID_SIPR ||
s->streams[i]->codec->codec_id == AV_CODEC_ID_RV10 ||
s->streams[i]->codec->codec_id == AV_CODEC_ID_RV20) {
av_log(s, AV_LOG_ERROR,
"The Matroska muxer does not yet support muxing %s\n",
avcodec_get_name(s->streams[i]->codec->codec_id));
return AVERROR_PATCHWELCOME;
} |
ab21acec |
if (s->streams[i]->codec->codec_id == AV_CODEC_ID_OPUS ||
av_dict_get(s->streams[i]->metadata, "stereo_mode", NULL, 0) ||
av_dict_get(s->streams[i]->metadata, "alpha_mode", NULL, 0))
version = 4;
} |
f02f231e |
|
f6d17d2a |
mkv->tracks = av_mallocz_array(s->nb_streams, sizeof(*mkv->tracks)); |
3dabebc2 |
if (!mkv->tracks) {
ret = AVERROR(ENOMEM);
goto fail;
} |
baf71dca |
ebml_header = start_ebml_master(pb, EBML_ID_HEADER, 0); |
5034ab90 |
put_ebml_uint (pb, EBML_ID_EBMLVERSION , 1);
put_ebml_uint (pb, EBML_ID_EBMLREADVERSION , 1);
put_ebml_uint (pb, EBML_ID_EBMLMAXIDLENGTH , 4);
put_ebml_uint (pb, EBML_ID_EBMLMAXSIZELENGTH , 8); |
316d6c15 |
put_ebml_string (pb, EBML_ID_DOCTYPE , s->oformat->name); |
ab21acec |
put_ebml_uint (pb, EBML_ID_DOCTYPEVERSION , version); |
5034ab90 |
put_ebml_uint (pb, EBML_ID_DOCTYPEREADVERSION , 2);
end_ebml_master(pb, ebml_header);
|
baf71dca |
mkv->segment = start_ebml_master(pb, MATROSKA_ID_SEGMENT, 0); |
a2704c97 |
mkv->segment_offset = avio_tell(pb); |
967d815a |
|
cfde5d18 |
// we write 2 seek heads - one at the end of the file to point to each
// cluster, and one at the beginning to point to all other level one
// elements (including the seek head at the end of the file), which
// isn't more than 10 elements if we only write one of each other
// currently defined level 1 element |
967d815a |
mkv->main_seekhead = mkv_start_seekhead(pb, mkv->segment_offset, 10); |
3dabebc2 |
if (!mkv->main_seekhead) {
ret = AVERROR(ENOMEM);
goto fail;
} |
967d815a |
|
a2704c97 |
ret = mkv_add_seekhead_entry(mkv->main_seekhead, MATROSKA_ID_INFO, avio_tell(pb)); |
3dabebc2 |
if (ret < 0) goto fail; |
5034ab90 |
|
baf71dca |
segment_info = start_ebml_master(pb, MATROSKA_ID_INFO, 0); |
5034ab90 |
put_ebml_uint(pb, MATROSKA_ID_TIMECODESCALE, 1000000); |
d2d67e42 |
if ((tag = av_dict_get(s->metadata, "title", NULL, 0))) |
5e565998 |
put_ebml_string(pb, MATROSKA_ID_TITLE, tag->value); |
0c1959b0 |
if (!(s->flags & AVFMT_FLAG_BITEXACT)) { |
1f4280e7 |
uint32_t segment_uid[4]; |
5150dd53 |
AVLFG lfg;
av_lfg_init(&lfg, av_get_random_seed());
|
1f4280e7 |
for (i = 0; i < 4; i++) |
5150dd53 |
segment_uid[i] = av_lfg_get(&lfg); |
1f4280e7 |
|
f1f6156b |
put_ebml_string(pb, MATROSKA_ID_MUXINGAPP, LIBAVFORMAT_IDENT); |
0092c1dd |
if ((tag = av_dict_get(s->metadata, "encoding_tool", NULL, 0)))
put_ebml_string(pb, MATROSKA_ID_WRITINGAPP, tag->value);
else
put_ebml_string(pb, MATROSKA_ID_WRITINGAPP, LIBAVFORMAT_IDENT); |
1f4280e7 |
put_ebml_binary(pb, MATROSKA_ID_SEGMENTUID, segment_uid, 16); |
ea70e2f2 |
} else {
const char *ident = "Lavf";
put_ebml_string(pb, MATROSKA_ID_MUXINGAPP , ident);
put_ebml_string(pb, MATROSKA_ID_WRITINGAPP, ident); |
5034ab90 |
} |
4b8f58ee |
|
66e85a18 |
if (ff_parse_creation_time_metadata(s, &creation_time, 0) > 0) { |
2e061130 |
// Adjust time so it's relative to 2001-01-01 and convert to nanoseconds. |
66e85a18 |
int64_t date_utc = (creation_time - 978307200000000LL) * 1000; |
2e061130 |
uint8_t date_utc_buf[8];
AV_WB64(date_utc_buf, date_utc);
put_ebml_binary(pb, MATROSKA_ID_DATEUTC, date_utc_buf, 8);
}
|
5034ab90 |
// reserve space for the duration
mkv->duration = 0; |
a2704c97 |
mkv->duration_offset = avio_tell(pb); |
6fd300ac |
if (!mkv->is_live) {
put_ebml_void(pb, 11); // assumes double-precision float to be written
} |
5034ab90 |
end_ebml_master(pb, segment_info);
|
31852540 |
// initialize stream_duration fields
mkv->stream_durations = av_mallocz(s->nb_streams * sizeof(int64_t));
mkv->stream_duration_offsets = av_mallocz(s->nb_streams * sizeof(int64_t));
|
6d588ecd |
ret = mkv_write_tracks(s); |
f1f6156b |
if (ret < 0) |
3dabebc2 |
goto fail; |
67143c0f |
|
07704c61 |
for (i = 0; i < s->nb_chapters; i++)
mkv->chapter_id_offset = FFMAX(mkv->chapter_id_offset, 1LL - s->chapters[i]->id);
|
316d6c15 |
if (mkv->mode != MODE_WEBM) {
ret = mkv_write_chapters(s); |
f1f6156b |
if (ret < 0) |
3dabebc2 |
goto fail; |
9b75309c |
ret = mkv_write_tags(s); |
f1f6156b |
if (ret < 0) |
3dabebc2 |
goto fail; |
c7a63a52 |
ret = mkv_write_attachments(s); |
f1f6156b |
if (ret < 0) |
3dabebc2 |
goto fail; |
316d6c15 |
} |
2bd0758e |
|
6fd300ac |
if (!s->pb->seekable && !mkv->is_live) |
3dabebc2 |
mkv_write_seekhead(pb, mkv); |
7a2a4840 |
|
6364d534 |
mkv->cues = mkv_start_cues(mkv->segment_offset); |
3dabebc2 |
if (!mkv->cues) {
ret = AVERROR(ENOMEM);
goto fail;
} |
e3b225a4 |
if (pb->seekable && mkv->reserve_cues_space) {
mkv->cues_pos = avio_tell(pb);
put_ebml_void(pb, mkv->reserve_cues_space);
}
|
ac9baa71 |
av_init_packet(&mkv->cur_audio_pkt);
mkv->cur_audio_pkt.size = 0; |
bda5b662 |
mkv->cluster_pos = -1; |
ac9baa71 |
|
b7f2fdde |
avio_flush(pb); |
98308bd4 |
// start a new cluster every 5 MB or 5 sec, or 32k / 1 sec for streaming or
// after 4k and on a keyframe
if (pb->seekable) {
if (mkv->cluster_time_limit < 0)
mkv->cluster_time_limit = 5000;
if (mkv->cluster_size_limit < 0)
mkv->cluster_size_limit = 5 * 1024 * 1024;
} else {
if (mkv->cluster_time_limit < 0)
mkv->cluster_time_limit = 1000;
if (mkv->cluster_size_limit < 0)
mkv->cluster_size_limit = 32 * 1024;
}
|
67143c0f |
return 0; |
3dabebc2 |
fail:
mkv_free(mkv);
return ret; |
67143c0f |
}
|
1bfbe8ff |
static int mkv_blockgroup_size(int pkt_size) |
baf71dca |
{ |
1bfbe8ff |
int size = pkt_size + 4; |
0f651e8c |
size += ebml_num_size(size); |
baf71dca |
size += 2; // EBML ID for block and block duration
size += 8; // max size of block duration |
0f651e8c |
size += ebml_num_size(size); |
baf71dca |
size += 1; // blockgroup EBML ID
return size;
}
|
01656fd4 |
static int mkv_strip_wavpack(const uint8_t *src, uint8_t **pdst, int *size)
{
uint8_t *dst;
int srclen = *size;
int offset = 0;
int ret;
dst = av_malloc(srclen);
if (!dst)
return AVERROR(ENOMEM);
while (srclen >= WV_HEADER_SIZE) {
WvHeader header;
ret = ff_wv_parse_header(&header, src);
if (ret < 0)
goto fail;
src += WV_HEADER_SIZE;
srclen -= WV_HEADER_SIZE;
if (srclen < header.blocksize) {
ret = AVERROR_INVALIDDATA;
goto fail;
}
if (header.initial) {
AV_WL32(dst + offset, header.samples);
offset += 4;
}
AV_WL32(dst + offset, header.flags);
AV_WL32(dst + offset + 4, header.crc);
offset += 8;
if (!(header.initial && header.final)) {
AV_WL32(dst + offset, header.blocksize);
offset += 4;
}
memcpy(dst + offset, src, header.blocksize);
src += header.blocksize;
srclen -= header.blocksize;
offset += header.blocksize;
}
*pdst = dst;
*size = offset;
return 0;
fail:
av_freep(&dst);
return ret;
}
|
ae628ec1 |
static void mkv_write_block(AVFormatContext *s, AVIOContext *pb, |
7be0f48a |
unsigned int blockid, AVPacket *pkt, int keyframe) |
95527e06 |
{
MatroskaMuxContext *mkv = s->priv_data; |
0a63a676 |
AVCodecContext *codec = s->streams[pkt->stream_index]->codec; |
8ffcc826 |
uint8_t *data = NULL, *side_data = NULL;
int offset = 0, size = pkt->size, side_data_size = 0; |
84d4e599 |
int64_t ts = mkv->tracks[pkt->stream_index].write_dts ? pkt->dts : pkt->pts; |
f4b1ca99 |
uint64_t additional_id = 0;
int64_t discard_padding = 0; |
7be0f48a |
uint8_t track_number = (mkv->is_dash ? mkv->dash_track_number : (pkt->stream_index + 1)); |
2fb193b1 |
ebml_master block_group, block_additions, block_more; |
95527e06 |
|
8ffc5f9e |
av_log(s, AV_LOG_DEBUG, "Writing block at offset %" PRIu64 ", size %d, " |
b01891a9 |
"pts %" PRId64 ", dts %" PRId64 ", duration %" PRId64 ", keyframe %d\n", |
7be0f48a |
avio_tell(pb), pkt->size, pkt->pts, pkt->dts, pkt->duration,
keyframe != 0); |
36ef5369 |
if (codec->codec_id == AV_CODEC_ID_H264 && codec->extradata_size > 0 && |
5f8bae8d |
(AV_RB24(codec->extradata) == 1 || AV_RB32(codec->extradata) == 1))
ff_avc_parse_nal_units_buf(pkt->data, &data, &size); |
558b20d7 |
else if (codec->codec_id == AV_CODEC_ID_HEVC && codec->extradata_size > 6 &&
(AV_RB24(codec->extradata) == 1 || AV_RB32(codec->extradata) == 1))
/* extradata is Annex B, assume the bitstream is too and convert it */
ff_hevc_annexb2mp4_buf(pkt->data, &data, &size, 0, NULL); |
01656fd4 |
else if (codec->codec_id == AV_CODEC_ID_WAVPACK) {
int ret = mkv_strip_wavpack(pkt->data, &data, &size);
if (ret < 0) {
av_log(s, AV_LOG_ERROR, "Error stripping a WavPack packet.\n");
return;
}
} else |
5f8bae8d |
data = pkt->data; |
117d8c6d |
|
8f6b919d |
if (codec->codec_id == AV_CODEC_ID_PRORES && size >= 8) { |
117d8c6d |
/* Matroska specification requires to remove the first QuickTime atom
*/ |
f1f6156b |
size -= 8; |
117d8c6d |
offset = 8;
}
|
8ffcc826 |
side_data = av_packet_get_side_data(pkt, |
bb47aa58 |
AV_PKT_DATA_SKIP_SAMPLES,
&side_data_size);
if (side_data && side_data_size >= 10) {
discard_padding = av_rescale_q(AV_RL32(side_data + 4),
(AVRational){1, codec->sample_rate},
(AVRational){1, 1000000000});
}
side_data = av_packet_get_side_data(pkt, |
8ffcc826 |
AV_PKT_DATA_MATROSKA_BLOCKADDITIONAL,
&side_data_size);
if (side_data) {
additional_id = AV_RB64(side_data);
side_data += 8;
side_data_size -= 8;
}
|
bb47aa58 |
if ((side_data_size && additional_id == 1) || discard_padding) { |
8ffcc826 |
block_group = start_ebml_master(pb, MATROSKA_ID_BLOCKGROUP, 0); |
2fb193b1 |
blockid = MATROSKA_ID_BLOCK;
}
put_ebml_id(pb, blockid); |
f1f6156b |
put_ebml_num(pb, size + 4, 0); |
37cef8c7 |
// this assumes stream_index is less than 126 |
7be0f48a |
avio_w8(pb, 0x80 | track_number); |
2fb193b1 |
avio_wb16(pb, ts - mkv->cluster_pts); |
7be0f48a |
avio_w8(pb, (blockid == MATROSKA_ID_SIMPLEBLOCK && keyframe) ? (1 << 7) : 0); |
2fb193b1 |
avio_write(pb, data + offset, size);
if (data != pkt->data)
av_free(data);
|
7be0f48a |
if (blockid == MATROSKA_ID_BLOCK && !keyframe) {
put_ebml_sint(pb, MATROSKA_ID_BLOCKREFERENCE,
mkv->last_track_timestamp[track_number - 1]);
}
mkv->last_track_timestamp[track_number - 1] = ts - mkv->cluster_pts;
|
bb47aa58 |
if (discard_padding) { |
f4b1ca99 |
put_ebml_sint(pb, MATROSKA_ID_DISCARDPADDING, discard_padding); |
bb47aa58 |
}
|
2fb193b1 |
if (side_data_size && additional_id == 1) { |
8ffcc826 |
block_additions = start_ebml_master(pb, MATROSKA_ID_BLOCKADDITIONS, 0);
block_more = start_ebml_master(pb, MATROSKA_ID_BLOCKMORE, 0);
put_ebml_uint(pb, MATROSKA_ID_BLOCKADDID, 1);
put_ebml_id(pb, MATROSKA_ID_BLOCKADDITIONAL);
put_ebml_num(pb, side_data_size, 0);
avio_write(pb, side_data, side_data_size);
end_ebml_master(pb, block_more);
end_ebml_master(pb, block_additions); |
bb47aa58 |
}
if ((side_data_size && additional_id == 1) || discard_padding) { |
8ffcc826 |
end_ebml_master(pb, block_group);
} |
95527e06 |
}
|
509642b4 |
static int mkv_write_vtt_blocks(AVFormatContext *s, AVIOContext *pb, AVPacket *pkt)
{
MatroskaMuxContext *mkv = s->priv_data;
ebml_master blockgroup;
int id_size, settings_size, size;
uint8_t *id, *settings;
int64_t ts = mkv->tracks[pkt->stream_index].write_dts ? pkt->dts : pkt->pts;
const int flags = 0;
id_size = 0;
id = av_packet_get_side_data(pkt, AV_PKT_DATA_WEBVTT_IDENTIFIER,
&id_size);
settings_size = 0;
settings = av_packet_get_side_data(pkt, AV_PKT_DATA_WEBVTT_SETTINGS,
&settings_size);
size = id_size + 1 + settings_size + 1 + pkt->size;
av_log(s, AV_LOG_DEBUG, "Writing block at offset %" PRIu64 ", size %d, " |
b01891a9 |
"pts %" PRId64 ", dts %" PRId64 ", duration %" PRId64 ", flags %d\n", |
509642b4 |
avio_tell(pb), size, pkt->pts, pkt->dts, pkt->duration, flags);
blockgroup = start_ebml_master(pb, MATROSKA_ID_BLOCKGROUP, mkv_blockgroup_size(size));
put_ebml_id(pb, MATROSKA_ID_BLOCK); |
8365287e |
put_ebml_num(pb, size + 4, 0); |
509642b4 |
avio_w8(pb, 0x80 | (pkt->stream_index + 1)); // this assumes stream_index is less than 126
avio_wb16(pb, ts - mkv->cluster_pts);
avio_w8(pb, flags);
avio_printf(pb, "%.*s\n%.*s\n%.*s", id_size, id, settings_size, settings, pkt->size, pkt->data);
put_ebml_uint(pb, MATROSKA_ID_BLOCKDURATION, pkt->duration);
end_ebml_master(pb, blockgroup);
return pkt->duration;
}
|
871b641b |
static void mkv_flush_dynbuf(AVFormatContext *s)
{
MatroskaMuxContext *mkv = s->priv_data;
int bufsize;
uint8_t *dyn_buf;
if (!mkv->dyn_bc)
return;
|
6dc7d80d |
bufsize = avio_close_dyn_buf(mkv->dyn_bc, &dyn_buf); |
77eb5504 |
avio_write(s->pb, dyn_buf, bufsize); |
871b641b |
av_free(dyn_buf);
mkv->dyn_bc = NULL;
}
|
3c6e220a |
static void mkv_start_new_cluster(AVFormatContext *s, AVPacket *pkt)
{
MatroskaMuxContext *mkv = s->priv_data;
AVIOContext *pb;
if (s->pb->seekable) {
pb = s->pb;
} else {
pb = mkv->dyn_bc;
}
av_log(s, AV_LOG_DEBUG,
"Starting new cluster at offset %" PRIu64 " bytes, "
"pts %" PRIu64 "dts %" PRIu64 "\n",
avio_tell(pb), pkt->pts, pkt->dts);
end_ebml_master(pb, mkv->cluster);
mkv->cluster_pos = -1;
if (mkv->dyn_bc)
mkv_flush_dynbuf(s);
avio_flush(s->pb);
}
|
37cef8c7 |
static int mkv_write_packet_internal(AVFormatContext *s, AVPacket *pkt, int add_cue) |
67143c0f |
{ |
98186e41 |
MatroskaMuxContext *mkv = s->priv_data; |
f1f6156b |
AVIOContext *pb = s->pb;
AVCodecContext *codec = s->streams[pkt->stream_index]->codec;
int keyframe = !!(pkt->flags & AV_PKT_FLAG_KEY);
int duration = pkt->duration; |
6d588ecd |
int ret; |
84d4e599 |
int64_t ts = mkv->tracks[pkt->stream_index].write_dts ? pkt->dts : pkt->pts; |
c5f3cc40 |
int64_t relative_packet_pos; |
925f7980 |
int dash_tracknum = mkv->is_dash ? mkv->dash_track_number : pkt->stream_index + 1; |
b1adb69c |
|
654b65d0 |
if (ts == AV_NOPTS_VALUE) {
av_log(s, AV_LOG_ERROR, "Can't write packet with unknown timestamp\n");
return AVERROR(EINVAL);
} |
a1aa37dd |
ts += mkv->tracks[pkt->stream_index].ts_offset; |
654b65d0 |
|
7923aa0f |
if (mkv->cluster_pos != -1) {
int64_t cluster_time = ts - mkv->cluster_pts + mkv->tracks[pkt->stream_index].ts_offset;
if ((int16_t)cluster_time != cluster_time) { |
d44b8f0a |
av_log(s, AV_LOG_WARNING, "Starting new cluster due to timestamp\n"); |
7923aa0f |
mkv_start_new_cluster(s, pkt);
}
}
|
8978feda |
if (!s->pb->seekable) { |
b1f517f5 |
if (!mkv->dyn_bc) { |
28c020d4 |
ret = avio_open_dyn_buf(&mkv->dyn_bc); |
8be93ba0 |
if (ret < 0) { |
b1f517f5 |
av_log(s, AV_LOG_ERROR, "Failed to open dynamic buffer\n");
return ret;
}
} |
871b641b |
pb = mkv->dyn_bc;
}
|
bda5b662 |
if (mkv->cluster_pos == -1) { |
a2704c97 |
mkv->cluster_pos = avio_tell(s->pb); |
f1f6156b |
mkv->cluster = start_ebml_master(pb, MATROSKA_ID_CLUSTER, 0); |
f9ff7179 |
put_ebml_uint(pb, MATROSKA_ID_CLUSTERTIMECODE, FFMAX(0, ts));
mkv->cluster_pts = FFMAX(0, ts); |
98186e41 |
}
|
c5f3cc40 |
relative_packet_pos = avio_tell(s->pb) - mkv->cluster.pos;
|
72415b2a |
if (codec->codec_type != AVMEDIA_TYPE_SUBTITLE) { |
7be0f48a |
mkv_write_block(s, pb, MATROSKA_ID_SIMPLEBLOCK, pkt, keyframe); |
da46370e |
if (s->pb->seekable && (codec->codec_type == AVMEDIA_TYPE_VIDEO && keyframe || add_cue)) { |
925f7980 |
ret = mkv_add_cuepoint(mkv->cues, pkt->stream_index, dash_tracknum, ts, mkv->cluster_pos, relative_packet_pos, -1);
if (ret < 0) return ret;
}
} else { |
0c6a92a4 |
if (codec->codec_id == AV_CODEC_ID_WEBVTT) {
duration = mkv_write_vtt_blocks(s, pb, pkt);
} else {
ebml_master blockgroup = start_ebml_master(pb, MATROSKA_ID_BLOCKGROUP,
mkv_blockgroup_size(pkt->size)); |
b01891a9 |
|
948f3c19 |
#if FF_API_CONVERGENCE_DURATION
FF_DISABLE_DEPRECATION_WARNINGS |
0c6a92a4 |
/* For backward compatibility, prefer convergence_duration. */
if (pkt->convergence_duration > 0) {
duration = pkt->convergence_duration;
} |
948f3c19 |
FF_ENABLE_DEPRECATION_WARNINGS
#endif |
0c6a92a4 |
/* All subtitle blocks are considered to be keyframes. */
mkv_write_block(s, pb, MATROSKA_ID_BLOCK, pkt, 1);
put_ebml_uint(pb, MATROSKA_ID_BLOCKDURATION, duration);
end_ebml_master(pb, blockgroup); |
9d89c8b3 |
} |
02f487fc |
|
0c6a92a4 |
if (s->pb->seekable) {
ret = mkv_add_cuepoint(mkv->cues, pkt->stream_index, dash_tracknum, ts,
mkv->cluster_pos, relative_packet_pos, duration);
if (ret < 0)
return ret; |
6253f511 |
} |
da46370e |
} |
6364d534 |
|
ac9baa71 |
mkv->duration = FFMAX(mkv->duration, ts + duration); |
31852540 |
if (mkv->stream_durations)
mkv->stream_durations[pkt->stream_index] =
FFMAX(mkv->stream_durations[pkt->stream_index], ts + duration);
|
ac9baa71 |
return 0;
}
static int mkv_write_packet(AVFormatContext *s, AVPacket *pkt)
{
MatroskaMuxContext *mkv = s->priv_data; |
148fbdd1 |
int codec_type = s->streams[pkt->stream_index]->codec->codec_type;
int keyframe = !!(pkt->flags & AV_PKT_FLAG_KEY);
int cluster_size;
int64_t cluster_time;
int ret; |
37cef8c7 |
int start_new_cluster; |
148fbdd1 |
if (mkv->tracks[pkt->stream_index].write_dts)
cluster_time = pkt->dts - mkv->cluster_pts;
else
cluster_time = pkt->pts - mkv->cluster_pts; |
a1aa37dd |
cluster_time += mkv->tracks[pkt->stream_index].ts_offset; |
ac9baa71 |
// start a new cluster every 5 MB or 5 sec, or 32k / 1 sec for streaming or
// after 4k and on a keyframe |
148fbdd1 |
if (s->pb->seekable) { |
3c6e220a |
cluster_size = avio_tell(s->pb) - mkv->cluster_pos; |
148fbdd1 |
} else { |
3c6e220a |
cluster_size = avio_tell(mkv->dyn_bc); |
148fbdd1 |
}
|
37cef8c7 |
if (mkv->is_dash && codec_type == AVMEDIA_TYPE_VIDEO) {
// WebM DASH specification states that the first block of every cluster
// has to be a key frame. So for DASH video, we only create a cluster
// on seeing key frames.
start_new_cluster = keyframe;
} else if (mkv->is_dash && codec_type == AVMEDIA_TYPE_AUDIO && |
241b306b |
(mkv->cluster_pos == -1 ||
cluster_time > mkv->cluster_time_limit)) { |
37cef8c7 |
// For DASH audio, we create a Cluster based on cluster_time_limit
start_new_cluster = 1;
} else if (!mkv->is_dash &&
(cluster_size > mkv->cluster_size_limit ||
cluster_time > mkv->cluster_time_limit ||
(codec_type == AVMEDIA_TYPE_VIDEO && keyframe &&
cluster_size > 4 * 1024))) {
start_new_cluster = 1;
} else {
start_new_cluster = 0;
}
if (mkv->cluster_pos != -1 && start_new_cluster) { |
3c6e220a |
mkv_start_new_cluster(s, pkt); |
30f06a58 |
}
|
ac9baa71 |
// check if we have an audio packet cached
if (mkv->cur_audio_pkt.size > 0) { |
37cef8c7 |
// for DASH audio, a CuePoint has to be added when there is a new cluster.
ret = mkv_write_packet_internal(s, &mkv->cur_audio_pkt,
mkv->is_dash ? start_new_cluster : 0); |
ce70f28a |
av_packet_unref(&mkv->cur_audio_pkt); |
ac9baa71 |
if (ret < 0) { |
f1f6156b |
av_log(s, AV_LOG_ERROR,
"Could not write cached audio packet ret:%d\n", ret); |
ac9baa71 |
return ret;
}
}
// buffer an audio packet to ensure the packet containing the video
// keyframe's timecode is contained in the same cluster for WebM |
148fbdd1 |
if (codec_type == AVMEDIA_TYPE_AUDIO) { |
9b56d5c1 |
ret = av_packet_ref(&mkv->cur_audio_pkt, pkt); |
1afddbe5 |
} else |
37cef8c7 |
ret = mkv_write_packet_internal(s, pkt, 0); |
ac9baa71 |
return ret; |
67143c0f |
}
|
b886f5c2 |
static int mkv_write_flush_packet(AVFormatContext *s, AVPacket *pkt)
{
MatroskaMuxContext *mkv = s->priv_data;
AVIOContext *pb;
if (s->pb->seekable)
pb = s->pb;
else
pb = mkv->dyn_bc;
if (!pkt) { |
e1acfd3c |
if (mkv->cluster_pos != -1) { |
f1f6156b |
av_log(s, AV_LOG_DEBUG,
"Flushing cluster at offset %" PRIu64 " bytes\n",
avio_tell(pb)); |
b886f5c2 |
end_ebml_master(pb, mkv->cluster); |
e1acfd3c |
mkv->cluster_pos = -1; |
b886f5c2 |
if (mkv->dyn_bc)
mkv_flush_dynbuf(s);
avio_flush(s->pb);
} |
b14086ca |
return 1; |
b886f5c2 |
}
return mkv_write_packet(s, pkt);
}
|
67143c0f |
static int mkv_write_trailer(AVFormatContext *s)
{
MatroskaMuxContext *mkv = s->priv_data; |
ae628ec1 |
AVIOContext *pb = s->pb; |
e7ddafd5 |
int64_t currentpos, cuespos; |
9e2a3e22 |
int ret; |
02f487fc |
|
ac9baa71 |
// check if we have an audio packet cached
if (mkv->cur_audio_pkt.size > 0) { |
37cef8c7 |
ret = mkv_write_packet_internal(s, &mkv->cur_audio_pkt, 0); |
ce70f28a |
av_packet_unref(&mkv->cur_audio_pkt); |
ac9baa71 |
if (ret < 0) { |
f1f6156b |
av_log(s, AV_LOG_ERROR,
"Could not write cached audio packet ret:%d\n", ret); |
ac9baa71 |
return ret;
}
}
|
871b641b |
if (mkv->dyn_bc) {
end_ebml_master(mkv->dyn_bc, mkv->cluster);
mkv_flush_dynbuf(s); |
bda5b662 |
} else if (mkv->cluster_pos != -1) { |
871b641b |
end_ebml_master(pb, mkv->cluster);
} |
02f487fc |
|
26b241c0 |
if (mkv->mode != MODE_WEBM) {
ret = mkv_write_chapters(s); |
f1f6156b |
if (ret < 0)
return ret; |
26b241c0 |
}
|
8978feda |
if (pb->seekable) { |
91819763 |
if (mkv->cues->num_entries) { |
e3b225a4 |
if (mkv->reserve_cues_space) {
int64_t cues_end;
currentpos = avio_tell(pb);
avio_seek(pb, mkv->cues_pos, SEEK_SET);
|
8365287e |
cuespos = mkv_write_cues(s, mkv->cues, mkv->tracks, s->nb_streams); |
e3b225a4 |
cues_end = avio_tell(pb);
if (cues_end > cuespos + mkv->reserve_cues_space) { |
f1f6156b |
av_log(s, AV_LOG_ERROR,
"Insufficient space reserved for cues: %d "
"(needed: %" PRId64 ").\n",
mkv->reserve_cues_space, cues_end - cuespos); |
e3b225a4 |
return AVERROR(EINVAL);
}
if (cues_end < cuespos + mkv->reserve_cues_space) |
f1f6156b |
put_ebml_void(pb, mkv->reserve_cues_space -
(cues_end - cuespos)); |
e3b225a4 |
avio_seek(pb, currentpos, SEEK_SET);
} else { |
925f7980 |
cuespos = mkv_write_cues(s, mkv->cues, mkv->tracks, s->nb_streams); |
e3b225a4 |
} |
91819763 |
|
f1f6156b |
ret = mkv_add_seekhead_entry(mkv->main_seekhead, MATROSKA_ID_CUES,
cuespos);
if (ret < 0)
return ret; |
91819763 |
} |
6364d534 |
|
3dabebc2 |
mkv_write_seekhead(pb, mkv); |
e5c29287 |
// update the duration
av_log(s, AV_LOG_DEBUG, "end duration = %" PRIu64 "\n", mkv->duration); |
a2704c97 |
currentpos = avio_tell(pb); |
6b4aa5da |
avio_seek(pb, mkv->duration_offset, SEEK_SET); |
e5c29287 |
put_ebml_float(pb, MATROSKA_ID_DURATION, mkv->duration);
|
31852540 |
// update stream durations
if (mkv->stream_durations) { |
ace83766 |
int i;
for (i = 0; i < s->nb_streams; ++i) { |
31852540 |
AVStream *st = s->streams[i];
double duration_sec = mkv->stream_durations[i] * av_q2d(st->time_base);
char duration_string[20] = "";
av_log(s, AV_LOG_DEBUG, "stream %d end duration = %" PRIu64 "\n", i,
mkv->stream_durations[i]);
if (!mkv->is_live && mkv->stream_duration_offsets[i] > 0) {
avio_seek(pb, mkv->stream_duration_offsets[i], SEEK_SET);
snprintf(duration_string, 20, "%02d:%02d:%012.9f",
(int) duration_sec / 3600, ((int) duration_sec / 60) % 60,
fmod(duration_sec, 60));
put_ebml_binary(pb, MATROSKA_ID_TAGSTRING, duration_string, 20);
}
}
}
|
6b4aa5da |
avio_seek(pb, currentpos, SEEK_SET); |
ac9e1177 |
} |
02f487fc |
|
6fd300ac |
if (!mkv->is_live) {
end_ebml_master(pb, mkv->segment);
} |
3b4bb19e |
|
3dabebc2 |
mkv_free(mkv); |
67143c0f |
return 0;
}
|
36ef5369 |
static int mkv_query_codec(enum AVCodecID codec_id, int std_compliance) |
15c14ce6 |
{
int i; |
36ef5369 |
for (i = 0; ff_mkv_codec_tags[i].id != AV_CODEC_ID_NONE; i++) |
15c14ce6 |
if (ff_mkv_codec_tags[i].id == codec_id)
return 1;
|
f1f6156b |
if (std_compliance < FF_COMPLIANCE_NORMAL) {
enum AVMediaType type = avcodec_get_type(codec_id);
// mkv theoretically supports any video/audio through VFW/ACM |
15c14ce6 |
if (type == AVMEDIA_TYPE_VIDEO || type == AVMEDIA_TYPE_AUDIO)
return 1;
}
return 0;
}
|
b287d7ea |
static int mkv_init(struct AVFormatContext *s)
{
int i;
if (s->avoid_negative_ts < 0) {
s->avoid_negative_ts = 1;
s->internal->avoid_negative_ts_use_pts = 1;
}
for (i = 0; i < s->nb_streams; i++) {
// ms precision is the de-facto standard timescale for mkv files
avpriv_set_pts_info(s->streams[i], 64, 1, 1000);
}
return 0;
}
static int mkv_check_bitstream(struct AVFormatContext *s, const AVPacket *pkt)
{
int ret = 1;
AVStream *st = s->streams[pkt->stream_index];
if (st->codec->codec_id == AV_CODEC_ID_AAC)
if (pkt->size > 2 && (AV_RB16(pkt->data) & 0xfff0) == 0xfff0)
ret = ff_stream_add_bitstream_filter(st, "aac_adtstoasc", NULL);
return ret;
}
|
0553f2c6 |
static const AVCodecTag additional_audio_tags[] = { |
df39c3ce |
{ AV_CODEC_ID_ALAC, 0XFFFFFFFF },
{ AV_CODEC_ID_EAC3, 0XFFFFFFFF },
{ AV_CODEC_ID_MLP, 0xFFFFFFFF },
{ AV_CODEC_ID_OPUS, 0xFFFFFFFF },
{ AV_CODEC_ID_PCM_S16BE, 0xFFFFFFFF },
{ AV_CODEC_ID_PCM_S24BE, 0xFFFFFFFF },
{ AV_CODEC_ID_PCM_S32BE, 0xFFFFFFFF },
{ AV_CODEC_ID_QDM2, 0xFFFFFFFF },
{ AV_CODEC_ID_RA_144, 0xFFFFFFFF },
{ AV_CODEC_ID_RA_288, 0xFFFFFFFF },
{ AV_CODEC_ID_COOK, 0xFFFFFFFF },
{ AV_CODEC_ID_TRUEHD, 0xFFFFFFFF },
{ AV_CODEC_ID_NONE, 0xFFFFFFFF }
};
|
0553f2c6 |
static const AVCodecTag additional_video_tags[] = { |
df39c3ce |
{ AV_CODEC_ID_RV10, 0xFFFFFFFF },
{ AV_CODEC_ID_RV20, 0xFFFFFFFF },
{ AV_CODEC_ID_RV30, 0xFFFFFFFF },
{ AV_CODEC_ID_RV40, 0xFFFFFFFF },
{ AV_CODEC_ID_VP9, 0xFFFFFFFF },
{ AV_CODEC_ID_NONE, 0xFFFFFFFF }
};
|
b76df6ef |
static const AVCodecTag additional_subtitle_tags[] = {
{ AV_CODEC_ID_DVB_SUBTITLE, 0xFFFFFFFF },
{ AV_CODEC_ID_HDMV_PGS_SUBTITLE, 0xFFFFFFFF },
{ AV_CODEC_ID_NONE, 0xFFFFFFFF }
};
|
e3b225a4 |
#define OFFSET(x) offsetof(MatroskaMuxContext, x)
#define FLAGS AV_OPT_FLAG_ENCODING_PARAM
static const AVOption options[] = { |
98308bd4 |
{ "reserve_index_space", "Reserve a given amount of space (in bytes) at the beginning of the file for the index (cues).", OFFSET(reserve_cues_space), AV_OPT_TYPE_INT, { .i64 = 0 }, 0, INT_MAX, FLAGS },
{ "cluster_size_limit", "Store at most the provided amount of bytes in a cluster. ", OFFSET(cluster_size_limit), AV_OPT_TYPE_INT , { .i64 = -1 }, -1, INT_MAX, FLAGS },
{ "cluster_time_limit", "Store at most the provided number of milliseconds in a cluster.", OFFSET(cluster_time_limit), AV_OPT_TYPE_INT64, { .i64 = -1 }, -1, INT64_MAX, FLAGS }, |
43ecec0f |
{ "dash", "Create a WebM file conforming to WebM DASH specification", OFFSET(is_dash), AV_OPT_TYPE_BOOL, { .i64 = 0 }, 0, 1, FLAGS }, |
37cef8c7 |
{ "dash_track_number", "Track number for the DASH stream", OFFSET(dash_track_number), AV_OPT_TYPE_INT, { .i64 = 1 }, 0, 127, FLAGS }, |
43ecec0f |
{ "live", "Write files assuming it is a live stream.", OFFSET(is_live), AV_OPT_TYPE_BOOL, { .i64 = 0 }, 0, 1, FLAGS },
{ "allow_raw_vfw", "allow RAW VFW mode", OFFSET(allow_raw_vfw), AV_OPT_TYPE_BOOL, { .i64 = 0 }, 0, 1, FLAGS }, |
e3b225a4 |
{ NULL },
};
|
316d6c15 |
#if CONFIG_MATROSKA_MUXER |
e3b225a4 |
static const AVClass matroska_class = {
.class_name = "matroska muxer",
.item_name = av_default_item_name,
.option = options,
.version = LIBAVUTIL_VERSION_INT,
};
|
c6610a21 |
AVOutputFormat ff_matroska_muxer = { |
dfc2c4d9 |
.name = "matroska", |
6774247a |
.long_name = NULL_IF_CONFIG_SMALL("Matroska"), |
dfc2c4d9 |
.mime_type = "video/x-matroska",
.extensions = "mkv",
.priv_data_size = sizeof(MatroskaMuxContext), |
fd487218 |
.audio_codec = CONFIG_LIBVORBIS_ENCODER ? |
36ef5369 |
AV_CODEC_ID_VORBIS : AV_CODEC_ID_AC3, |
fd487218 |
.video_codec = CONFIG_LIBX264_ENCODER ? |
36ef5369 |
AV_CODEC_ID_H264 : AV_CODEC_ID_MPEG4, |
b287d7ea |
.init = mkv_init, |
dfc2c4d9 |
.write_header = mkv_write_header, |
b886f5c2 |
.write_packet = mkv_write_flush_packet, |
dfc2c4d9 |
.write_trailer = mkv_write_trailer, |
e9cef897 |
.flags = AVFMT_GLOBALHEADER | AVFMT_VARIABLE_FPS | |
b886f5c2 |
AVFMT_TS_NONSTRICT | AVFMT_ALLOW_FLUSH, |
df39c3ce |
.codec_tag = (const AVCodecTag* const []){
ff_codec_bmp_tags, ff_codec_wav_tags, |
b76df6ef |
additional_audio_tags, additional_video_tags, additional_subtitle_tags, 0 |
df39c3ce |
}, |
7c1a002c |
.subtitle_codec = AV_CODEC_ID_ASS, |
15c14ce6 |
.query_codec = mkv_query_codec, |
b287d7ea |
.check_bitstream = mkv_check_bitstream, |
e3b225a4 |
.priv_class = &matroska_class, |
67143c0f |
}; |
316d6c15 |
#endif
#if CONFIG_WEBM_MUXER |
e3b225a4 |
static const AVClass webm_class = {
.class_name = "webm muxer",
.item_name = av_default_item_name,
.option = options,
.version = LIBAVUTIL_VERSION_INT,
};
|
c6610a21 |
AVOutputFormat ff_webm_muxer = { |
dfc2c4d9 |
.name = "webm", |
6774247a |
.long_name = NULL_IF_CONFIG_SMALL("WebM"), |
dfc2c4d9 |
.mime_type = "video/webm",
.extensions = "webm",
.priv_data_size = sizeof(MatroskaMuxContext), |
e176639b |
.audio_codec = CONFIG_LIBOPUS_ENCODER ? AV_CODEC_ID_OPUS : AV_CODEC_ID_VORBIS,
.video_codec = CONFIG_LIBVPX_VP9_ENCODER? AV_CODEC_ID_VP9 : AV_CODEC_ID_VP8, |
509642b4 |
.subtitle_codec = AV_CODEC_ID_WEBVTT, |
b287d7ea |
.init = mkv_init, |
dfc2c4d9 |
.write_header = mkv_write_header, |
b886f5c2 |
.write_packet = mkv_write_flush_packet, |
dfc2c4d9 |
.write_trailer = mkv_write_trailer, |
b287d7ea |
.check_bitstream = mkv_check_bitstream, |
e9cef897 |
.flags = AVFMT_GLOBALHEADER | AVFMT_VARIABLE_FPS | |
b886f5c2 |
AVFMT_TS_NONSTRICT | AVFMT_ALLOW_FLUSH, |
e3b225a4 |
.priv_class = &webm_class, |
316d6c15 |
};
#endif |
55c151ef |
|
316d6c15 |
#if CONFIG_MATROSKA_AUDIO_MUXER |
e3b225a4 |
static const AVClass mka_class = {
.class_name = "matroska audio muxer",
.item_name = av_default_item_name,
.option = options,
.version = LIBAVUTIL_VERSION_INT,
}; |
c6610a21 |
AVOutputFormat ff_matroska_audio_muxer = { |
dfc2c4d9 |
.name = "matroska", |
8d9c1b32 |
.long_name = NULL_IF_CONFIG_SMALL("Matroska Audio"), |
dfc2c4d9 |
.mime_type = "audio/x-matroska",
.extensions = "mka",
.priv_data_size = sizeof(MatroskaMuxContext), |
fd487218 |
.audio_codec = CONFIG_LIBVORBIS_ENCODER ? |
36ef5369 |
AV_CODEC_ID_VORBIS : AV_CODEC_ID_AC3,
.video_codec = AV_CODEC_ID_NONE, |
b287d7ea |
.init = mkv_init, |
dfc2c4d9 |
.write_header = mkv_write_header, |
b886f5c2 |
.write_packet = mkv_write_flush_packet, |
dfc2c4d9 |
.write_trailer = mkv_write_trailer, |
b287d7ea |
.check_bitstream = mkv_check_bitstream, |
b886f5c2 |
.flags = AVFMT_GLOBALHEADER | AVFMT_TS_NONSTRICT |
AVFMT_ALLOW_FLUSH, |
df39c3ce |
.codec_tag = (const AVCodecTag* const []){
ff_codec_wav_tags, additional_audio_tags, 0
}, |
e3b225a4 |
.priv_class = &mka_class, |
55c151ef |
}; |
316d6c15 |
#endif |