* Matroska muxer
* Copyright (c) 2007 David Conrad
*
- * This file is part of Libav.
+ * This file is part of FFmpeg.
*
- * Libav is free software; you can redistribute it and/or
+ * 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.
*
- * Libav is distributed in the hope that it will be useful,
+ * 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 Libav; if not, write to the Free Software
+ * License along with FFmpeg; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
#include "avc.h"
#include "hevc.h"
#include "avformat.h"
+#include "avio_internal.h"
#include "avlanguage.h"
#include "flacenc.h"
#include "internal.h"
#include "isom.h"
#include "matroska.h"
#include "riff.h"
+#include "subtitles.h"
#include "vorbiscomment.h"
#include "wv.h"
#include "libavutil/opt.h"
#include "libavutil/random_seed.h"
#include "libavutil/samplefmt.h"
+#include "libavutil/sha.h"
#include "libavutil/stereo3d.h"
#include "libavcodec/xiph.h"
#include "libavcodec/mpeg4audio.h"
+#include "libavcodec/internal.h"
typedef struct ebml_master {
int64_t pos; ///< absolute offset in the file where the master's elements start
typedef struct mkv_cuepoint {
uint64_t pts;
+ int stream_idx;
int tracknum;
int64_t cluster_pos; ///< file offset of the cluster containing the block
+ int64_t relative_pos; ///< relative offset from the position of the cluster containing the block
+ int64_t duration; ///< duration of the block according to time base
} mkv_cuepoint;
typedef struct mkv_cues {
typedef struct mkv_track {
int write_dts;
+ int has_cue;
int64_t ts_offset;
} mkv_track;
int cluster_size_limit;
int64_t cues_pos;
int64_t cluster_time_limit;
+ int is_dash;
+ int dash_track_number;
+ int is_live;
+
+ uint32_t chapter_id_offset;
int wrote_chapters;
+
+ int allow_raw_vfw;
} MatroskaMuxContext;
* offset, 4 bytes for target EBML ID */
#define MAX_SEEKENTRY_SIZE 21
-/** per-cuepoint-track - 3 1-byte EBML IDs, 3 1-byte EBML sizes, 2
+/** per-cuepoint-track - 5 1-byte EBML IDs, 5 1-byte EBML sizes, 4
* 8-byte uint max */
-#define MAX_CUETRACKPOS_SIZE 22
+#define MAX_CUETRACKPOS_SIZE 42
/** per-cuepoint - 2 1-byte EBML IDs, 2 1-byte EBML sizes, 8-byte uint max */
#define MAX_CUEPOINT_SIZE(num_tracks) 12 + MAX_CUETRACKPOS_SIZE * num_tracks
+/** Seek preroll value for opus */
+#define OPUS_SEEK_PREROLL 80000000
+
static int ebml_id_size(unsigned int id)
{
return (av_log2(id + 1) - 1) / 7 + 1;
{
int i = ebml_id_size(id);
while (i--)
- avio_w8(pb, id >> (i * 8));
+ avio_w8(pb, (uint8_t)(id >> (i * 8)));
}
/**
*/
static void put_ebml_size_unknown(AVIOContext *pb, int bytes)
{
- assert(bytes <= 8);
+ av_assert0(bytes <= 8);
avio_w8(pb, 0x1ff >> bytes);
- while (--bytes)
- avio_w8(pb, 0xff);
+ ffio_fill(pb, 0xff, bytes - 1);
}
/**
int i, needed_bytes = ebml_num_size(num);
// sizes larger than this are currently undefined in EBML
- assert(num < (1ULL << 56) - 1);
+ av_assert0(num < (1ULL << 56) - 1);
if (bytes == 0)
// don't care how many bytes are used, so use the min
bytes = needed_bytes;
// 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.
- assert(bytes >= needed_bytes);
+ av_assert0(bytes >= needed_bytes);
num |= 1ULL << bytes * 7;
for (i = bytes - 1; i >= 0; i--)
- avio_w8(pb, num >> i * 8);
+ avio_w8(pb, (uint8_t)(num >> i * 8));
}
static void put_ebml_uint(AVIOContext *pb, unsigned int elementid, uint64_t val)
put_ebml_id(pb, elementid);
put_ebml_num(pb, bytes, 0);
for (i = bytes - 1; i >= 0; i--)
- avio_w8(pb, val >> i * 8);
+ avio_w8(pb, (uint8_t)(val >> i * 8));
+}
+
+static void put_ebml_sint(AVIOContext *pb, unsigned int elementid, int64_t val)
+{
+ int i, bytes = 1;
+ uint64_t tmp = 2*(val < 0 ? val^-1 : val);
+
+ while (tmp>>=8) bytes++;
+
+ put_ebml_id(pb, elementid);
+ put_ebml_num(pb, bytes, 0);
+ for (i = bytes - 1; i >= 0; i--)
+ avio_w8(pb, (uint8_t)(val >> i * 8));
}
static void put_ebml_float(AVIOContext *pb, unsigned int elementid, double val)
{
int64_t currentpos = avio_tell(pb);
- assert(size >= 2);
+ av_assert0(size >= 2);
put_ebml_id(pb, EBML_ID_VOID);
// we need to subtract the length needed to store the size from the
put_ebml_num(pb, size - 1, 0);
else
put_ebml_num(pb, size - 9, 8);
- while (avio_tell(pb) < currentpos + size)
- avio_w8(pb, 0);
+ ffio_fill(pb, 0, currentpos + size - avio_tell(pb));
}
static ebml_master start_ebml_master(AVIOContext *pb, unsigned int elementid,
static void put_xiph_size(AVIOContext *pb, int size)
{
- int i;
- for (i = 0; i < size / 255; i++)
- avio_w8(pb, 255);
+ ffio_fill(pb, 255, size / 255);
avio_w8(pb, size % 255);
}
static int mkv_add_seekhead_entry(mkv_seekhead *seekhead, unsigned int elementid, uint64_t filepos)
{
- int err;
+ 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;
- if ((err = av_reallocp_array(&seekhead->entries, seekhead->num_entries + 1,
- sizeof(*seekhead->entries))) < 0) {
- seekhead->num_entries = 0;
- return err;
- }
+ entries = av_realloc_array(entries, seekhead->num_entries + 1, sizeof(mkv_seekhead_entry));
+ if (!entries)
+ return AVERROR(ENOMEM);
+ seekhead->entries = entries;
seekhead->entries[seekhead->num_entries].elementid = elementid;
seekhead->entries[seekhead->num_entries++].segmentpos = filepos - seekhead->segment_offset;
currentpos = seekhead->filepos;
}
fail:
- av_free(seekhead->entries);
+ av_freep(&seekhead->entries);
av_free(seekhead);
return currentpos;
return cues;
}
-static int mkv_add_cuepoint(mkv_cues *cues, int stream, int64_t ts, int64_t cluster_pos)
+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)
{
- int err;
+ mkv_cuepoint *entries = cues->entries;
if (ts < 0)
return 0;
- if ((err = av_reallocp_array(&cues->entries, cues->num_entries + 1,
- sizeof(*cues->entries))) < 0) {
- cues->num_entries = 0;
- return err;
- }
+ entries = av_realloc_array(entries, cues->num_entries + 1, sizeof(mkv_cuepoint));
+ if (!entries)
+ return AVERROR(ENOMEM);
+ cues->entries = entries;
cues->entries[cues->num_entries].pts = ts;
- cues->entries[cues->num_entries].tracknum = stream + 1;
- cues->entries[cues->num_entries++].cluster_pos = cluster_pos - cues->segment_offset;
+ cues->entries[cues->num_entries].stream_idx = stream;
+ cues->entries[cues->num_entries].tracknum = tracknum;
+ cues->entries[cues->num_entries].cluster_pos = cluster_pos - cues->segment_offset;
+ cues->entries[cues->num_entries].relative_pos = relative_pos;
+ cues->entries[cues->num_entries++].duration = duration;
return 0;
}
-static int64_t mkv_write_cues(AVIOContext *pb, mkv_cues *cues, int num_tracks)
+static int64_t mkv_write_cues(AVFormatContext *s, mkv_cues *cues, mkv_track *tracks, int num_tracks)
{
+ AVIOContext *pb = s->pb;
ebml_master cues_element;
int64_t currentpos;
int i, j;
ebml_master cuepoint, track_positions;
mkv_cuepoint *entry = &cues->entries[i];
uint64_t pts = entry->pts;
+ int ctp_nb = 0;
- cuepoint = start_ebml_master(pb, MATROSKA_ID_POINTENTRY, MAX_CUEPOINT_SIZE(num_tracks));
+ // 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));
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
+ 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;
track_positions = start_ebml_master(pb, MATROSKA_ID_CUETRACKPOSITION, MAX_CUETRACKPOS_SIZE);
- 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_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);
+ if (entry[j].duration != -1)
+ put_ebml_uint(pb, MATROSKA_ID_CUEDURATION , entry[j].duration);
end_ebml_master(pb, track_positions);
}
i += j - 1;
static int put_xiph_codecpriv(AVFormatContext *s, AVIOContext *pb, AVCodecContext *codec)
{
- uint8_t *header_start[3];
+ const uint8_t *header_start[3];
int header_len[3];
int first_header_size;
int j;
if (write_comment) {
const char *vendor = (s->flags & AVFMT_FLAG_BITEXACT) ?
- "Libav" : LIBAVFORMAT_IDENT;
+ "Lavf" : LIBAVFORMAT_IDENT;
AVDictionary *dict = NULL;
uint8_t buf[32], *data, *p;
int len;
return ff_isom_write_avcc(dyn_cp, codec->extradata,
codec->extradata_size);
case AV_CODEC_ID_HEVC:
- return ff_isom_write_hvcc(dyn_cp, codec->extradata,
- codec->extradata_size, 0);
+ ff_isom_write_hvcc(dyn_cp, codec->extradata,
+ codec->extradata_size, 0);
+ return 0;
case AV_CODEC_ID_ALAC:
if (codec->extradata_size < 36) {
av_log(s, AV_LOG_ERROR,
codec->extradata_size - 12);
break;
default:
- if (codec->extradata_size)
- avio_write(dyn_cp, codec->extradata, codec->extradata_size);
+ 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);
}
return 0;
if (!codec->codec_tag)
codec->codec_tag = ff_codec_get_tag(ff_codec_movvideo_tags,
codec->codec_id);
- if (codec->extradata_size)
+ if (codec->extradata_size) {
+ if ( ff_codec_get_id(ff_codec_movvideo_tags, codec->codec_tag) == codec->codec_id
+ && ff_codec_get_id(ff_codec_movvideo_tags, AV_RL32(codec->extradata + 4)) != codec->codec_id
+ ) {
+ int i;
+ avio_wb32(dyn_cp, 0x5a + codec->extradata_size);
+ avio_wl32(dyn_cp, codec->codec_tag);
+ for(i = 0; i < 0x5a - 8; i++)
+ avio_w8(dyn_cp, 0);
+ }
avio_write(dyn_cp, codec->extradata, codec->extradata_size);
+ }
} else {
+ 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));
+
if (!codec->codec_tag)
codec->codec_tag = ff_codec_get_tag(ff_codec_bmp_tags,
codec->codec_id);
- if (!codec->codec_tag) {
- av_log(s, AV_LOG_ERROR, "No bmp codec ID found.\n");
- ret = -1;
+ if (!codec->codec_tag && codec->codec_id != AV_CODEC_ID_RAWVIDEO) {
+ av_log(s, AV_LOG_ERROR, "No bmp codec tag found for codec %s\n",
+ avcodec_get_name(codec->codec_id));
+ ret = AVERROR(EINVAL);
}
- ff_put_bmp_header(dyn_cp, codec, ff_codec_bmp_tags, 0);
+ ff_put_bmp_header(dyn_cp, codec, ff_codec_bmp_tags, 0, 0);
}
} else if (codec->codec_type == AVMEDIA_TYPE_AUDIO) {
unsigned int tag;
tag = ff_codec_get_tag(ff_codec_wav_tags, codec->codec_id);
if (!tag) {
- av_log(s, AV_LOG_ERROR, "No wav codec ID found.\n");
- ret = -1;
+ av_log(s, AV_LOG_ERROR, "No wav codec tag found for codec %s\n",
+ avcodec_get_name(codec->codec_id));
+ ret = AVERROR(EINVAL);
}
if (!codec->codec_tag)
codec->codec_tag = tag;
- ff_put_wav_header(dyn_cp, codec);
+ ff_put_wav_header(dyn_cp, codec, FF_PUT_WAV_HEADER_FORCE_WAVEFORMATEX);
}
codecpriv_size = avio_close_dyn_buf(dyn_cp, &codecpriv);
return ret;
}
+
static int mkv_write_stereo_mode(AVFormatContext *s, AVIOContext *pb,
- AVStream *st, int mode)
+ AVStream *st, int mode, int *h_width, int *h_height)
{
int i;
- int display_width, display_height;
- int h_width = 1, h_height = 1;
- AVCodecContext *codec = st->codec;
+ int ret = 0;
AVDictionaryEntry *tag;
MatroskaVideoStereoModeType format = MATROSKA_VIDEO_STEREOMODE_TYPE_NB;
+ *h_width = 1;
+ *h_height = 1;
// convert metadata into proper side data and add it to the stream
- if ((tag = av_dict_get(s->metadata, "stereo_mode", NULL, 0))) {
+ if ((tag = av_dict_get(st->metadata, "stereo_mode", NULL, 0)) ||
+ (tag = av_dict_get( s->metadata, "stereo_mode", NULL, 0))) {
int stereo_mode = atoi(tag->value);
+
+ for (i=0; i<MATROSKA_VIDEO_STEREOMODE_TYPE_NB; i++)
+ if (!strcmp(tag->value, ff_matroska_video_stereo_mode[i])){
+ stereo_mode = i;
+ break;
+ }
+
if (stereo_mode < MATROSKA_VIDEO_STEREOMODE_TYPE_NB &&
stereo_mode != 10 && stereo_mode != 12) {
int ret = ff_mkv_stereo3d_conv(st, stereo_mode);
format = (stereo->flags & AV_STEREO3D_FLAG_INVERT)
? MATROSKA_VIDEO_STEREOMODE_TYPE_RIGHT_LEFT
: MATROSKA_VIDEO_STEREOMODE_TYPE_LEFT_RIGHT;
- h_width = 2;
+ *h_width = 2;
break;
case AV_STEREO3D_TOPBOTTOM:
format = MATROSKA_VIDEO_STEREOMODE_TYPE_TOP_BOTTOM;
if (stereo->flags & AV_STEREO3D_FLAG_INVERT)
format--;
- h_height = 2;
+ *h_height = 2;
break;
case AV_STEREO3D_CHECKERBOARD:
format = MATROSKA_VIDEO_STEREOMODE_TYPE_CHECKERBOARD_LR;
format = MATROSKA_VIDEO_STEREOMODE_TYPE_ROW_INTERLEAVED_LR;
if (stereo->flags & AV_STEREO3D_FLAG_INVERT)
format--;
- h_height = 2;
+ *h_height = 2;
break;
case AV_STEREO3D_COLUMNS:
format = MATROSKA_VIDEO_STEREOMODE_TYPE_COL_INTERLEAVED_LR;
if (stereo->flags & AV_STEREO3D_FLAG_INVERT)
format--;
- h_width = 2;
+ *h_width = 2;
break;
case AV_STEREO3D_FRAMESEQUENCE:
format = MATROSKA_VIDEO_STEREOMODE_TYPE_BOTH_EYES_BLOCK_LR;
format++;
break;
}
-
break;
}
}
+ if (format == MATROSKA_VIDEO_STEREOMODE_TYPE_NB)
+ return ret;
+
// if webm, do not write unsupported modes
- if (mode == MODE_WEBM &&
- (format > MATROSKA_VIDEO_STEREOMODE_TYPE_TOP_BOTTOM &&
- format != MATROSKA_VIDEO_STEREOMODE_TYPE_RIGHT_LEFT))
+ if ((mode == MODE_WEBM &&
+ format > MATROSKA_VIDEO_STEREOMODE_TYPE_TOP_BOTTOM &&
+ format != MATROSKA_VIDEO_STEREOMODE_TYPE_RIGHT_LEFT)
+ || format >= MATROSKA_VIDEO_STEREOMODE_TYPE_NB) {
+ av_log(s, AV_LOG_ERROR,
+ "The specified stereo mode is not valid.\n");
format = MATROSKA_VIDEO_STEREOMODE_TYPE_NB;
+ return AVERROR(EINVAL);
+ }
// write StereoMode if format is valid
- if (format < MATROSKA_VIDEO_STEREOMODE_TYPE_NB)
- put_ebml_uint(pb, MATROSKA_ID_VIDEOSTEREOMODE, format);
+ put_ebml_uint(pb, MATROSKA_ID_VIDEOSTEREOMODE, format);
- // write DisplayWidth and DisplayHeight, they contain the size of
- // a single source view and/or the display aspect ratio
- display_width = codec->width / h_width;
- display_height = codec->height / h_height;
- if (st->sample_aspect_ratio.num) {
- display_width *= av_q2d(st->sample_aspect_ratio);
- put_ebml_uint(pb, MATROSKA_ID_VIDEODISPLAYUNIT, 3); // DAR
- }
- if (st->sample_aspect_ratio.num ||
- format < MATROSKA_VIDEO_STEREOMODE_TYPE_NB) {
- put_ebml_uint(pb, MATROSKA_ID_VIDEODISPLAYWIDTH, display_width);
- put_ebml_uint(pb, MATROSKA_ID_VIDEODISPLAYHEIGHT, display_height);
- }
-
- return 0;
+ return ret;
}
static int mkv_write_track(AVFormatContext *s, MatroskaMuxContext *mkv,
- int i, AVIOContext *pb)
+ int i, AVIOContext *pb, int default_stream_exists)
{
AVStream *st = s->streams[i];
AVCodecContext *codec = st->codec;
int bit_depth = av_get_bits_per_sample(codec->codec_id);
int sample_rate = codec->sample_rate;
int output_sample_rate = 0;
+ int display_width_div = 1;
+ int display_height_div = 1;
int j, ret;
AVDictionaryEntry *tag;
return 0;
}
- if (!bit_depth)
+ if (!bit_depth && codec->codec_id != AV_CODEC_ID_ADPCM_G726)
bit_depth = av_get_bytes_per_sample(codec->sample_fmt) << 3;
+ if (!bit_depth)
+ bit_depth = codec->bits_per_coded_sample;
if (codec->codec_id == AV_CODEC_ID_AAC) {
ret = get_aac_sample_rates(s, codec, &sample_rate, &output_sample_rate);
}
track = start_ebml_master(pb, MATROSKA_ID_TRACKENTRY, 0);
- put_ebml_uint (pb, MATROSKA_ID_TRACKNUMBER , i + 1);
- put_ebml_uint (pb, MATROSKA_ID_TRACKUID , i + 1);
+ 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);
put_ebml_uint (pb, MATROSKA_ID_TRACKFLAGLACING , 0); // no lacing (yet)
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);
- put_ebml_string(pb, MATROSKA_ID_TRACKLANGUAGE, tag ? tag->value:"und");
+ if (mkv->mode != MODE_WEBM || codec->codec_id != AV_CODEC_ID_WEBVTT) {
+ put_ebml_string(pb, MATROSKA_ID_TRACKLANGUAGE, tag && tag->value ? tag->value:"und");
+ } else if (tag && tag->value) {
+ put_ebml_string(pb, MATROSKA_ID_TRACKLANGUAGE, tag->value);
+ }
// The default value for TRACKFLAGDEFAULT is 1, so add element
// if we need to clear it.
- if (!(st->disposition & AV_DISPOSITION_DEFAULT))
+ if (default_stream_exists && !(st->disposition & AV_DISPOSITION_DEFAULT))
put_ebml_uint(pb, MATROSKA_ID_TRACKFLAGDEFAULT, !!(st->disposition & AV_DISPOSITION_DEFAULT));
+
if (st->disposition & AV_DISPOSITION_FORCED)
- put_ebml_uint(pb, MATROSKA_ID_TRACKFLAGFORCED, !!(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;
+ } else {
+ 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;
+ }
+ }
+ 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);
+ }
+ }
+ }
- if (codec->codec_type == AVMEDIA_TYPE_AUDIO && codec->initial_padding) {
- mkv->tracks[i].ts_offset = av_rescale_q(codec->initial_padding,
- (AVRational){ 1, codec->sample_rate },
- st->time_base);
+ if (codec->codec_type == AVMEDIA_TYPE_AUDIO && codec->initial_padding && codec->codec_id == AV_CODEC_ID_OPUS) {
+// mkv->tracks[i].ts_offset = av_rescale_q(codec->initial_padding,
+// (AVRational){ 1, codec->sample_rate },
+// st->time_base);
put_ebml_uint(pb, MATROSKA_ID_CODECDELAY,
av_rescale_q(codec->initial_padding,
(AVRational){ 1, codec->sample_rate },
(AVRational){ 1, 1000000000 }));
}
-
- // 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;
- }
+ if (codec->codec_id == AV_CODEC_ID_OPUS) {
+ put_ebml_uint(pb, MATROSKA_ID_SEEKPREROLL, OPUS_SEEK_PREROLL);
}
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 ||
- codec->codec_id == AV_CODEC_ID_VORBIS)) {
+ codec->codec_id == AV_CODEC_ID_VORBIS ||
+ codec->codec_id == AV_CODEC_ID_WEBVTT)) {
av_log(s, AV_LOG_ERROR,
- "Only VP8 or VP9 video and Vorbis or Opus audio are supported for WebM.\n");
+ "Only VP8 or VP9 video and Vorbis or Opus audio and WebVTT subtitles are supported for WebM.\n");
return AVERROR(EINVAL);
}
switch (codec->codec_type) {
case AVMEDIA_TYPE_VIDEO:
put_ebml_uint(pb, MATROSKA_ID_TRACKTYPE, MATROSKA_TRACK_TYPE_VIDEO);
- if (st->avg_frame_rate.num > 0 && st->avg_frame_rate.den > 0)
+
+ if( st->avg_frame_rate.num > 0 && st->avg_frame_rate.den > 0
+ && 1.0/av_q2d(st->avg_frame_rate) > av_q2d(codec->time_base))
put_ebml_uint(pb, MATROSKA_ID_TRACKDEFAULTDURATION, 1E9 / av_q2d(st->avg_frame_rate));
+ else
+ put_ebml_uint(pb, MATROSKA_ID_TRACKDEFAULTDURATION, av_q2d(codec->time_base)*1E9);
if (!native_id &&
ff_codec_get_tag(ff_codec_movvideo_tags, codec->codec_id) &&
- (!ff_codec_get_tag(ff_codec_bmp_tags, codec->codec_id) ||
+ ((!ff_codec_get_tag(ff_codec_bmp_tags, codec->codec_id) && codec->codec_id != AV_CODEC_ID_RAWVIDEO) ||
codec->codec_id == AV_CODEC_ID_SVQ1 ||
codec->codec_id == AV_CODEC_ID_SVQ3 ||
codec->codec_id == AV_CODEC_ID_CINEPAK))
// check both side data and metadata for stereo information,
// write the result to the bitstream if any is found
- ret = mkv_write_stereo_mode(s, pb, st, mkv->mode);
+ ret = mkv_write_stereo_mode(s, pb, st, mkv->mode,
+ &display_width_div,
+ &display_height_div);
if (ret < 0)
return ret;
+ 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)) ||
+ (codec->pix_fmt == AV_PIX_FMT_YUVA420P)) {
+ put_ebml_uint(pb, MATROSKA_ID_VIDEOALPHAMODE, 1);
+ }
+
+ // write DisplayWidth and DisplayHeight, they contain the size of
+ // a single source view and/or the display aspect ratio
+ if (st->sample_aspect_ratio.num) {
+ 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);
+ }
+ 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);
+ }
+
+ 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));
+ }
+
end_ebml_master(pb, subinfo);
break;
break;
case AVMEDIA_TYPE_SUBTITLE:
- put_ebml_uint(pb, MATROSKA_ID_TRACKTYPE, MATROSKA_TRACK_TYPE_SUBTITLE);
if (!native_id) {
av_log(s, AV_LOG_ERROR, "Subtitle codec %d is not supported.\n", codec->codec_id);
return AVERROR(ENOSYS);
}
+
+ 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);
break;
default:
av_log(s, AV_LOG_ERROR, "Only audio, video, and subtitles are supported for Matroska.\n");
- break;
+ 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;
}
- ret = mkv_write_codecprivate(s, pb, codec, native_id, qt_id);
- if (ret < 0)
- return ret;
end_ebml_master(pb, track);
MatroskaMuxContext *mkv = s->priv_data;
AVIOContext *pb = s->pb;
ebml_master tracks;
- int i, ret;
+ int i, ret, default_stream_exists = 0;
ret = mkv_add_seekhead_entry(mkv->main_seekhead, MATROSKA_ID_TRACKS, avio_tell(pb));
if (ret < 0)
tracks = start_ebml_master(pb, MATROSKA_ID_TRACKS, 0);
for (i = 0; i < s->nb_streams; i++) {
- ret = mkv_write_track(s, mkv, i, pb);
+ 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);
if (ret < 0)
return ret;
}
}
chapteratom = start_ebml_master(pb, MATROSKA_ID_CHAPTERATOM, 0);
- put_ebml_uint(pb, MATROSKA_ID_CHAPTERUID, c->id);
+ put_ebml_uint(pb, MATROSKA_ID_CHAPTERUID, c->id + mkv->chapter_id_offset);
put_ebml_uint(pb, MATROSKA_ID_CHAPTERTIMESTART, chapterstart);
put_ebml_uint(pb, MATROSKA_ID_CHAPTERTIMEEND, chapterend);
put_ebml_uint(pb, MATROSKA_ID_CHAPTERFLAGHIDDEN , 0);
while ((t = av_dict_get(m, "", t, AV_DICT_IGNORE_SUFFIX))) {
if (av_strcasecmp(t->key, "title") &&
+ av_strcasecmp(t->key, "stereo_mode") &&
av_strcasecmp(t->key, "encoding_tool")) {
ret = mkv_write_simpletag(s->pb, t);
if (ret < 0)
return 0;
}
+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"))
+ return 1;
+
+ return 0;
+}
+
static int mkv_write_tags(AVFormatContext *s)
{
+ MatroskaMuxContext *mkv = s->priv_data;
ebml_master tags = {0};
int i, ret;
ff_metadata_conv_ctx(s, ff_mkv_metadata_conv, NULL);
- if (av_dict_get(s->metadata, "", NULL, AV_DICT_IGNORE_SUFFIX)) {
+ if (mkv_check_tag(s->metadata)) {
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];
- if (!av_dict_get(st->metadata, "", 0, AV_DICT_IGNORE_SUFFIX))
+ if (!mkv_check_tag(st->metadata))
continue;
ret = mkv_write_tag(s, st->metadata, MATROSKA_ID_TAGTARGETS_TRACKUID, i + 1, &tags);
for (i = 0; i < s->nb_chapters; i++) {
AVChapter *ch = s->chapters[i];
- if (!av_dict_get(ch->metadata, "", NULL, AV_DICT_IGNORE_SUFFIX))
+ if (!mkv_check_tag(ch->metadata))
continue;
- ret = mkv_write_tag(s, ch->metadata, MATROSKA_ID_TAGTARGETS_CHAPTERUID, ch->id, &tags);
+ ret = mkv_write_tag(s, ch->metadata, MATROSKA_ID_TAGTARGETS_CHAPTERUID, ch->id + mkv->chapter_id_offset, &tags);
if (ret < 0) return ret;
}
ebml_master attached_file;
AVDictionaryEntry *t;
const char *mimetype = NULL;
+ uint64_t fileuid;
if (st->codec->codec_type != AVMEDIA_TYPE_ATTACHMENT)
continue;
return AVERROR(EINVAL);
}
+ if (s->flags & AVFMT_FLAG_BITEXACT) {
+ 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);
+
put_ebml_string(pb, MATROSKA_ID_FILEMIMETYPE, mimetype);
put_ebml_binary(pb, MATROSKA_ID_FILEDATA, st->codec->extradata, st->codec->extradata_size);
- put_ebml_uint(pb, MATROSKA_ID_FILEUID, av_lfg_get(&c));
+ put_ebml_uint(pb, MATROSKA_ID_FILEUID, fileuid);
end_ebml_master(pb, attached_file);
}
end_ebml_master(pb, attachments);
AVIOContext *pb = s->pb;
ebml_master ebml_header, segment_info;
AVDictionaryEntry *tag;
- int ret, i;
+ int ret, i, version = 2;
if (!strcmp(s->oformat->name, "webm"))
mkv->mode = MODE_WEBM;
else
mkv->mode = MODE_MATROSKAv2;
- mkv->tracks = av_mallocz(s->nb_streams * sizeof(*mkv->tracks));
+ if (s->avoid_negative_ts < 0)
+ s->avoid_negative_ts = 1;
+
+ 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++) {
+ 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;
+ }
+ 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;
+ }
+
+ mkv->tracks = av_mallocz_array(s->nb_streams, sizeof(*mkv->tracks));
if (!mkv->tracks)
return AVERROR(ENOMEM);
put_ebml_uint (pb, EBML_ID_EBMLMAXIDLENGTH , 4);
put_ebml_uint (pb, EBML_ID_EBMLMAXSIZELENGTH , 8);
put_ebml_string (pb, EBML_ID_DOCTYPE , s->oformat->name);
- put_ebml_uint (pb, EBML_ID_DOCTYPEVERSION , 2);
+ put_ebml_uint (pb, EBML_ID_DOCTYPEVERSION , version);
put_ebml_uint (pb, EBML_ID_DOCTYPEREADVERSION , 2);
end_ebml_master(pb, ebml_header);
else
put_ebml_string(pb, MATROSKA_ID_WRITINGAPP, LIBAVFORMAT_IDENT);
put_ebml_binary(pb, MATROSKA_ID_SEGMENTUID, segment_uid, 16);
+ } else {
+ const char *ident = "Lavf";
+ put_ebml_string(pb, MATROSKA_ID_MUXINGAPP , ident);
+ put_ebml_string(pb, MATROSKA_ID_WRITINGAPP, ident);
+ }
+
+ if (tag = av_dict_get(s->metadata, "creation_time", NULL, 0)) {
+ // Adjust time so it's relative to 2001-01-01 and convert to nanoseconds.
+ int64_t date_utc = (ff_iso8601_to_unix_time(tag->value) - 978307200) * 1000000000;
+ uint8_t date_utc_buf[8];
+ AV_WB64(date_utc_buf, date_utc);
+ put_ebml_binary(pb, MATROSKA_ID_DATEUTC, date_utc_buf, 8);
}
// reserve space for the duration
mkv->duration = 0;
mkv->duration_offset = avio_tell(pb);
- put_ebml_void(pb, 11); // assumes double-precision float to be written
+ if (!mkv->is_live) {
+ put_ebml_void(pb, 11); // assumes double-precision float to be written
+ }
end_ebml_master(pb, segment_info);
ret = mkv_write_tracks(s);
if (ret < 0)
return ret;
+ for (i = 0; i < s->nb_chapters; i++)
+ mkv->chapter_id_offset = FFMAX(mkv->chapter_id_offset, 1LL - s->chapters[i]->id);
+
if (mkv->mode != MODE_WEBM) {
ret = mkv_write_chapters(s);
if (ret < 0)
return ret;
}
- if (!s->pb->seekable)
+ if (!s->pb->seekable && !mkv->is_live)
mkv_write_seekhead(pb, mkv->main_seekhead);
mkv->cues = mkv_start_cues(mkv->segment_offset);
av_init_packet(&mkv->cur_audio_pkt);
mkv->cur_audio_pkt.size = 0;
+ mkv->cluster_pos = -1;
avio_flush(pb);
return size;
}
-static int ass_get_duration(AVFormatContext *s, const uint8_t *p)
-{
- int sh, sm, ss, sc, eh, em, es, ec;
- uint64_t start, end;
-
- if (sscanf(p, "%*[^,],%d:%d:%d%*c%d,%d:%d:%d%*c%d",
- &sh, &sm, &ss, &sc, &eh, &em, &es, &ec) != 8)
- return 0;
-
- if (sh > 9 || sm > 59 || ss > 59 || sc > 99 ||
- eh > 9 || em > 59 || es > 59 || ec > 99) {
- av_log(s, AV_LOG_WARNING,
- "Non-standard time reference %d:%d:%d.%d,%d:%d:%d.%d\n",
- sh, sm, ss, sc, eh, em, es, ec);
- return 0;
- }
-
- start = 3600000 * sh + 60000 * sm + 1000 * ss + 10 * sc;
- end = 3600000 * eh + 60000 * em + 1000 * es + 10 * ec;
-
- if (start > end) {
- av_log(s, AV_LOG_WARNING,
- "Unexpected time reference %d:%d:%d.%d,%d:%d:%d.%d\n",
- sh, sm, ss, sc, eh, em, es, ec);
- return 0;
- }
-
- return end - start;
-}
-
-static int mkv_write_ass_blocks(AVFormatContext *s, AVIOContext *pb,
- AVPacket *pkt)
-{
- MatroskaMuxContext *mkv = s->priv_data;
- int i, layer = 0, max_duration = 0, size, line_size, data_size = pkt->size;
- uint8_t *start, *end, *data = pkt->data;
- ebml_master blockgroup;
- char buffer[2048];
-
- while (data_size) {
- int duration = ass_get_duration(s, data);
- max_duration = FFMAX(duration, max_duration);
- end = memchr(data, '\n', data_size);
- size = line_size = end ? end - data + 1 : data_size;
- size -= end ? (end[-1] == '\r') + 1 : 0;
- start = data;
- for (i = 0; i < 3; i++, start++)
- if (!(start = memchr(start, ',', size - (start - data))))
- return max_duration;
- size -= start - data;
- sscanf(data, "Dialogue: %d,", &layer);
- i = snprintf(buffer, sizeof(buffer), "%" PRId64 ",%d,",
- s->streams[pkt->stream_index]->nb_frames, layer);
- size = FFMIN(i + size, sizeof(buffer));
- memcpy(buffer + i, start, size - i);
-
- av_log(s, AV_LOG_DEBUG,
- "Writing block at offset %" PRIu64 ", size %d, "
- "pts %" PRId64 ", duration %d\n",
- avio_tell(pb), size, pkt->pts, duration);
- blockgroup = start_ebml_master(pb, MATROSKA_ID_BLOCKGROUP,
- mkv_blockgroup_size(size));
- put_ebml_id(pb, MATROSKA_ID_BLOCK);
- put_ebml_num(pb, size + 4, 0);
- // this assumes stream_index is less than 126
- avio_w8(pb, 0x80 | (pkt->stream_index + 1));
- avio_wb16(pb, pkt->pts - mkv->cluster_pts);
- avio_w8(pb, 0);
- avio_write(pb, buffer, size);
- put_ebml_uint(pb, MATROSKA_ID_BLOCKDURATION, duration);
- end_ebml_master(pb, blockgroup);
-
- data += line_size;
- data_size -= line_size;
- }
-
- return max_duration;
-}
-
static int mkv_strip_wavpack(const uint8_t *src, uint8_t **pdst, int *size)
{
uint8_t *dst;
{
MatroskaMuxContext *mkv = s->priv_data;
AVCodecContext *codec = s->streams[pkt->stream_index]->codec;
- uint8_t *data = NULL;
- int offset = 0, size = pkt->size;
+ uint8_t *data = NULL, *side_data = NULL;
+ int offset = 0, size = pkt->size, side_data_size = 0;
int64_t ts = mkv->tracks[pkt->stream_index].write_dts ? pkt->dts : pkt->pts;
+ uint64_t additional_id = 0;
+ int64_t discard_padding = 0;
+ ebml_master block_group, block_additions, block_more;
av_log(s, AV_LOG_DEBUG, "Writing block at offset %" PRIu64 ", size %d, "
"pts %" PRId64 ", dts %" PRId64 ", duration %d, flags %d\n",
offset = 8;
}
+ side_data = av_packet_get_side_data(pkt,
+ 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,
+ AV_PKT_DATA_MATROSKA_BLOCKADDITIONAL,
+ &side_data_size);
+ if (side_data) {
+ additional_id = AV_RB64(side_data);
+ side_data += 8;
+ side_data_size -= 8;
+ }
+
+ if ((side_data_size && additional_id == 1) || discard_padding) {
+ block_group = start_ebml_master(pb, MATROSKA_ID_BLOCKGROUP, 0);
+ blockid = MATROSKA_ID_BLOCK;
+ }
+
put_ebml_id(pb, blockid);
put_ebml_num(pb, size + 4, 0);
// this assumes stream_index is less than 126
- avio_w8(pb, 0x80 | (pkt->stream_index + 1));
+ avio_w8(pb, 0x80 | (mkv->is_dash ? mkv->dash_track_number : (pkt->stream_index + 1)));
avio_wb16(pb, ts - mkv->cluster_pts);
avio_w8(pb, flags);
avio_write(pb, data + offset, size);
if (data != pkt->data)
av_free(data);
-}
-static int srt_get_duration(uint8_t **buf)
-{
- int i, duration = 0;
-
- for (i = 0; i < 2 && !duration; i++) {
- int s_hour, s_min, s_sec, s_hsec, e_hour, e_min, e_sec, e_hsec;
- if (sscanf(*buf, "%d:%2d:%2d%*1[,.]%3d --> %d:%2d:%2d%*1[,.]%3d",
- &s_hour, &s_min, &s_sec, &s_hsec,
- &e_hour, &e_min, &e_sec, &e_hsec) == 8) {
- s_min += 60 * s_hour;
- e_min += 60 * e_hour;
- s_sec += 60 * s_min;
-
- e_sec += 60 * e_min;
- s_hsec += 1000 * s_sec;
- e_hsec += 1000 * e_sec;
-
- duration = e_hsec - s_hsec;
- }
- *buf += strcspn(*buf, "\n") + 1;
+ if (discard_padding) {
+ put_ebml_sint(pb, MATROSKA_ID_DISCARDPADDING, discard_padding);
+ }
+
+ if (side_data_size && additional_id == 1) {
+ 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);
+ }
+ if ((side_data_size && additional_id == 1) || discard_padding) {
+ end_ebml_master(pb, block_group);
}
- return duration;
}
-static int mkv_write_srt_blocks(AVFormatContext *s, AVIOContext *pb,
- AVPacket *pkt)
+static int mkv_write_vtt_blocks(AVFormatContext *s, AVIOContext *pb, AVPacket *pkt)
{
+ MatroskaMuxContext *mkv = s->priv_data;
ebml_master blockgroup;
- AVPacket pkt2 = *pkt;
- int64_t duration = srt_get_duration(&pkt2.data);
- pkt2.size -= pkt2.data - pkt->data;
-
- blockgroup = start_ebml_master(pb, MATROSKA_ID_BLOCKGROUP,
- mkv_blockgroup_size(pkt2.size));
- mkv_write_block(s, pb, MATROSKA_ID_BLOCK, &pkt2, 0);
- put_ebml_uint(pb, MATROSKA_ID_BLOCKDURATION, duration);
+ 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, "
+ "pts %" PRId64 ", dts %" PRId64 ", duration %d, flags %d\n",
+ 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);
+ put_ebml_num(pb, size + 4, 0);
+ 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 duration;
+ return pkt->duration;
}
static void mkv_flush_dynbuf(AVFormatContext *s)
mkv->dyn_bc = NULL;
}
-static int mkv_write_packet_internal(AVFormatContext *s, AVPacket *pkt)
+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);
+}
+
+static int mkv_write_packet_internal(AVFormatContext *s, AVPacket *pkt, int add_cue)
{
MatroskaMuxContext *mkv = s->priv_data;
AVIOContext *pb = s->pb;
int duration = pkt->duration;
int ret;
int64_t ts = mkv->tracks[pkt->stream_index].write_dts ? pkt->dts : pkt->pts;
+ int64_t relative_packet_pos;
+ int dash_tracknum = mkv->is_dash ? mkv->dash_track_number : pkt->stream_index + 1;
if (ts == AV_NOPTS_VALUE) {
av_log(s, AV_LOG_ERROR, "Can't write packet with unknown timestamp\n");
}
ts += mkv->tracks[pkt->stream_index].ts_offset;
+ 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) {
+ av_log(s, AV_LOG_WARNING, "Starting new cluster due to timestamp\n");
+ mkv_start_new_cluster(s, pkt);
+ }
+ }
+
if (!s->pb->seekable) {
if (!mkv->dyn_bc) {
ret = avio_open_dyn_buf(&mkv->dyn_bc);
- if (ret < 0)
+ if (ret < 0) {
+ av_log(s, AV_LOG_ERROR, "Failed to open dynamic buffer\n");
return ret;
+ }
}
pb = mkv->dyn_bc;
}
- if (!mkv->cluster_pos) {
+ if (mkv->cluster_pos == -1) {
mkv->cluster_pos = avio_tell(s->pb);
mkv->cluster = start_ebml_master(pb, MATROSKA_ID_CLUSTER, 0);
put_ebml_uint(pb, MATROSKA_ID_CLUSTERTIMECODE, FFMAX(0, ts));
mkv->cluster_pts = FFMAX(0, ts);
}
+ relative_packet_pos = avio_tell(s->pb) - mkv->cluster.pos;
+
if (codec->codec_type != AVMEDIA_TYPE_SUBTITLE) {
mkv_write_block(s, pb, MATROSKA_ID_SIMPLEBLOCK, pkt, keyframe << 7);
- } else if (codec->codec_id == AV_CODEC_ID_SSA) {
- duration = mkv_write_ass_blocks(s, pb, pkt);
- } else if (codec->codec_id == AV_CODEC_ID_SRT) {
- duration = mkv_write_srt_blocks(s, pb, pkt);
+ if (codec->codec_type == AVMEDIA_TYPE_VIDEO && keyframe || add_cue) {
+ 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 {
+ 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));
- duration = pkt->convergence_duration;
+ /* For backward compatibility, prefer convergence_duration. */
+ if (pkt->convergence_duration > 0) {
+ duration = pkt->convergence_duration;
+ }
mkv_write_block(s, pb, MATROSKA_ID_BLOCK, pkt, 0);
put_ebml_uint(pb, MATROSKA_ID_BLOCKDURATION, duration);
end_ebml_master(pb, blockgroup);
}
- if (codec->codec_type == AVMEDIA_TYPE_VIDEO && keyframe) {
- ret = mkv_add_cuepoint(mkv->cues, pkt->stream_index, ts,
- mkv->cluster_pos);
- if (ret < 0)
- return ret;
+ ret = mkv_add_cuepoint(mkv->cues, pkt->stream_index, dash_tracknum, ts,
+ mkv->cluster_pos, relative_packet_pos, duration);
+ if (ret < 0)
+ return ret;
}
mkv->duration = FFMAX(mkv->duration, ts + duration);
int keyframe = !!(pkt->flags & AV_PKT_FLAG_KEY);
int cluster_size;
int64_t cluster_time;
- AVIOContext *pb;
int ret;
+ int start_new_cluster;
if (mkv->tracks[pkt->stream_index].write_dts)
cluster_time = pkt->dts - mkv->cluster_pts;
// start a new cluster every 5 MB or 5 sec, or 32k / 1 sec for streaming or
// after 4k and on a keyframe
if (s->pb->seekable) {
- pb = s->pb;
- cluster_size = avio_tell(pb) - mkv->cluster_pos;
+ cluster_size = avio_tell(s->pb) - mkv->cluster_pos;
} else {
- pb = mkv->dyn_bc;
- cluster_size = avio_tell(pb);
- }
-
- if (mkv->cluster_pos &&
- (cluster_size > mkv->cluster_size_limit ||
- cluster_time > mkv->cluster_time_limit ||
- (codec_type == AVMEDIA_TYPE_VIDEO && keyframe &&
- cluster_size > 4 * 1024))) {
- 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 = 0;
- if (mkv->dyn_bc)
- mkv_flush_dynbuf(s);
- avio_flush(s->pb);
+ cluster_size = avio_tell(mkv->dyn_bc);
+ }
+
+ 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 &&
+ (mkv->cluster_pos == -1 ||
+ cluster_time > mkv->cluster_time_limit)) {
+ // 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) {
+ mkv_start_new_cluster(s, pkt);
}
// check if we have an audio packet cached
if (mkv->cur_audio_pkt.size > 0) {
- ret = mkv_write_packet_internal(s, &mkv->cur_audio_pkt);
+ // 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);
av_free_packet(&mkv->cur_audio_pkt);
if (ret < 0) {
av_log(s, AV_LOG_ERROR,
ret = mkv->cur_audio_pkt.buf ? 0 : AVERROR(ENOMEM);
} else
ret = av_dup_packet(&mkv->cur_audio_pkt);
+ if (mkv->cur_audio_pkt.side_data_elems > 0) {
+ ret = av_copy_packet_side_data(&mkv->cur_audio_pkt, &mkv->cur_audio_pkt);
+ }
} else
- ret = mkv_write_packet_internal(s, pkt);
+ ret = mkv_write_packet_internal(s, pkt, 0);
return ret;
}
else
pb = mkv->dyn_bc;
if (!pkt) {
- if (mkv->cluster_pos) {
+ if (mkv->cluster_pos != -1) {
av_log(s, AV_LOG_DEBUG,
"Flushing cluster at offset %" PRIu64 " bytes\n",
avio_tell(pb));
end_ebml_master(pb, mkv->cluster);
- mkv->cluster_pos = 0;
+ mkv->cluster_pos = -1;
if (mkv->dyn_bc)
mkv_flush_dynbuf(s);
avio_flush(s->pb);
// check if we have an audio packet cached
if (mkv->cur_audio_pkt.size > 0) {
- ret = mkv_write_packet_internal(s, &mkv->cur_audio_pkt);
+ ret = mkv_write_packet_internal(s, &mkv->cur_audio_pkt, 0);
av_free_packet(&mkv->cur_audio_pkt);
if (ret < 0) {
av_log(s, AV_LOG_ERROR,
if (mkv->dyn_bc) {
end_ebml_master(mkv->dyn_bc, mkv->cluster);
mkv_flush_dynbuf(s);
- } else if (mkv->cluster_pos) {
+ } else if (mkv->cluster_pos != -1) {
end_ebml_master(pb, mkv->cluster);
}
currentpos = avio_tell(pb);
avio_seek(pb, mkv->cues_pos, SEEK_SET);
- cuespos = mkv_write_cues(pb, mkv->cues, s->nb_streams);
+ cuespos = mkv_write_cues(s, mkv->cues, mkv->tracks, s->nb_streams);
cues_end = avio_tell(pb);
if (cues_end > cuespos + mkv->reserve_cues_space) {
av_log(s, AV_LOG_ERROR,
avio_seek(pb, currentpos, SEEK_SET);
} else {
- cuespos = mkv_write_cues(pb, mkv->cues, s->nb_streams);
+ cuespos = mkv_write_cues(s, mkv->cues, mkv->tracks, s->nb_streams);
}
ret = mkv_add_seekhead_entry(mkv->main_seekhead, MATROSKA_ID_CUES,
avio_seek(pb, currentpos, SEEK_SET);
}
- end_ebml_master(pb, mkv->segment);
- av_free(mkv->tracks);
+ if (!mkv->is_live) {
+ end_ebml_master(pb, mkv->segment);
+ }
+ av_freep(&mkv->tracks);
av_freep(&mkv->cues->entries);
av_freep(&mkv->cues);
return 0;
}
+static const AVCodecTag additional_audio_tags[] = {
+ { 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 }
+};
+
+static const AVCodecTag additional_video_tags[] = {
+ { 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 }
+};
+
+static const AVCodecTag additional_subtitle_tags[] = {
+ { AV_CODEC_ID_DVB_SUBTITLE, 0xFFFFFFFF },
+ { AV_CODEC_ID_HDMV_PGS_SUBTITLE, 0xFFFFFFFF },
+ { AV_CODEC_ID_NONE, 0xFFFFFFFF }
+};
+
#define OFFSET(x) offsetof(MatroskaMuxContext, x)
#define FLAGS AV_OPT_FLAG_ENCODING_PARAM
static const AVOption options[] = {
{ "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 },
+ { "dash", "Create a WebM file conforming to WebM DASH specification", OFFSET(is_dash), AV_OPT_TYPE_INT, { .i64 = 0 }, 0, 1, FLAGS },
+ { "dash_track_number", "Track number for the DASH stream", OFFSET(dash_track_number), AV_OPT_TYPE_INT, { .i64 = 1 }, 0, 127, FLAGS },
+ { "live", "Write files assuming it is a live stream.", OFFSET(is_live), AV_OPT_TYPE_INT, { .i64 = 0 }, 0, 1, FLAGS },
+ { "allow_raw_vfw", "allow RAW VFW mode", OFFSET(allow_raw_vfw), AV_OPT_TYPE_INT, { .i64 = 0 }, 0, 1, FLAGS },
{ NULL },
};
.flags = AVFMT_GLOBALHEADER | AVFMT_VARIABLE_FPS |
AVFMT_TS_NONSTRICT | AVFMT_ALLOW_FLUSH,
.codec_tag = (const AVCodecTag* const []){
- ff_codec_bmp_tags, ff_codec_wav_tags, 0
+ ff_codec_bmp_tags, ff_codec_wav_tags,
+ additional_audio_tags, additional_video_tags, additional_subtitle_tags, 0
},
- .subtitle_codec = AV_CODEC_ID_SSA,
+ .subtitle_codec = AV_CODEC_ID_ASS,
.query_codec = mkv_query_codec,
.priv_class = &matroska_class,
};
.priv_data_size = sizeof(MatroskaMuxContext),
.audio_codec = AV_CODEC_ID_VORBIS,
.video_codec = AV_CODEC_ID_VP8,
+ .subtitle_codec = AV_CODEC_ID_WEBVTT,
.write_header = mkv_write_header,
.write_packet = mkv_write_flush_packet,
.write_trailer = mkv_write_trailer,
};
AVOutputFormat ff_matroska_audio_muxer = {
.name = "matroska",
- .long_name = NULL_IF_CONFIG_SMALL("Matroska"),
+ .long_name = NULL_IF_CONFIG_SMALL("Matroska Audio"),
.mime_type = "audio/x-matroska",
.extensions = "mka",
.priv_data_size = sizeof(MatroskaMuxContext),
.write_trailer = mkv_write_trailer,
.flags = AVFMT_GLOBALHEADER | AVFMT_TS_NONSTRICT |
AVFMT_ALLOW_FLUSH,
- .codec_tag = (const AVCodecTag* const []){ ff_codec_wav_tags, 0 },
+ .codec_tag = (const AVCodecTag* const []){
+ ff_codec_wav_tags, additional_audio_tags, 0
+ },
.priv_class = &mka_class,
};
#endif
projects / ffmpeg / blobdiff