#include "isom.h"
#include "matroska.h"
#include "riff.h"
-#include "subtitles.h"
#include "vorbiscomment.h"
#include "wv.h"
#include "libavutil/random_seed.h"
#include "libavutil/rational.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"
/* Level 1 elements we create a SeekHead entry for:
* Info, Tracks, Chapters, Attachments, Tags and Cues */
typedef struct mkv_cuepoint {
uint64_t pts;
int stream_idx;
- int tracknum;
int64_t cluster_pos; ///< offset of the cluster containing the block relative to the segment
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
typedef struct mkv_track {
int write_dts;
int has_cue;
+ uint64_t uid;
+ unsigned track_num;
int sample_rate;
int64_t sample_rate_offset;
int64_t last_timestamp;
int64_t ts_offset;
} mkv_track;
-typedef struct mkv_attachment {
- int stream_idx;
- uint32_t fileuid;
-} mkv_attachment;
-
-typedef struct mkv_attachments {
- mkv_attachment *entries;
- int num_entries;
-} mkv_attachments;
-
#define MODE_MATROSKAv2 0x01
#define MODE_WEBM 0x02
mkv_seekhead seekhead;
mkv_cues cues;
mkv_track *tracks;
- mkv_attachments *attachments;
AVPacket cur_audio_pkt;
int wrote_chapters;
int allow_raw_vfw;
+
+ uint32_t segment_uid[4];
} MatroskaMuxContext;
/** 2 bytes * 7 for EBML IDs, 7 1-byte EBML lengths, 6 1-byte uint,
avio_w8(pb, (uint8_t)(num >> i * 8));
}
+/**
+ * Write a (random) UID with fixed size to make the output more deterministic
+ */
+static void put_ebml_uid(AVIOContext *pb, uint32_t elementid, uint64_t uid)
+{
+ put_ebml_id(pb, elementid);
+ put_ebml_num(pb, 8, 0);
+ avio_wb64(pb, uid);
+}
+
static void put_ebml_uint(AVIOContext *pb, uint32_t elementid, uint64_t val)
{
int i, bytes = 1;
*
* @param size The number of bytes to reserve, which must be at least 2.
*/
-static void put_ebml_void(AVIOContext *pb, uint64_t size)
+static void put_ebml_void(AVIOContext *pb, int size)
{
- int64_t currentpos = avio_tell(pb);
-
av_assert0(size >= 2);
put_ebml_id(pb, EBML_ID_VOID);
// 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
- if (size < 10)
- put_ebml_num(pb, size - 2, 0);
- else
- put_ebml_num(pb, size - 9, 8);
- ffio_fill(pb, 0, currentpos + size - avio_tell(pb));
+ if (size < 10) {
+ size -= 2;
+ put_ebml_num(pb, size, 0);
+ } else {
+ size -= 9;
+ put_ebml_num(pb, size, 8);
+ }
+ ffio_fill(pb, 0, size);
}
static ebml_master start_ebml_master(AVIOContext *pb, uint32_t elementid,
{
int ret;
- if ((ret = avio_open_dyn_buf(dyn_cp)) < 0)
+ if (!*dyn_cp && (ret = avio_open_dyn_buf(dyn_cp)) < 0)
return ret;
if (mkv->write_crc)
static void end_ebml_master_crc32(AVIOContext *pb, AVIOContext **dyn_cp,
MatroskaMuxContext *mkv, uint32_t id,
- int length_size)
+ int length_size, int keep_buffer)
{
uint8_t *buf, crc[4];
int size, skip = 0;
put_ebml_id(pb, id);
- size = avio_close_dyn_buf(*dyn_cp, &buf);
+ size = avio_get_dyn_buf(*dyn_cp, &buf);
put_ebml_num(pb, size, length_size);
if (mkv->write_crc) {
skip = 6; /* Skip reserved 6-byte long void element from the dynamic buffer. */
}
avio_write(pb, buf + skip, size - skip);
- av_free(buf);
- *dyn_cp = NULL;
+ if (keep_buffer) {
+ ffio_reset_dyn_buf(*dyn_cp);
+ } else {
+ ffio_free_dyn_buf(dyn_cp);
+ }
}
/**
ffio_free_dyn_buf(&mkv->tags_bc);
av_freep(&mkv->cues.entries);
- if (mkv->attachments) {
- av_freep(&mkv->attachments->entries);
- av_freep(&mkv->attachments);
- }
av_freep(&mkv->tracks);
}
static int mkv_write_seekhead(AVIOContext *pb, MatroskaMuxContext *mkv,
int error_on_seek_failure, int64_t destpos)
{
- AVIOContext *dyn_cp;
+ AVIOContext *dyn_cp = NULL;
mkv_seekhead *seekhead = &mkv->seekhead;
int64_t remaining, ret64;
int i, ret;
put_ebml_uint(dyn_cp, MATROSKA_ID_SEEKPOSITION, entry->segmentpos);
end_ebml_master(dyn_cp, seekentry);
}
- end_ebml_master_crc32(pb, &dyn_cp, mkv, MATROSKA_ID_SEEKHEAD, 0);
+ end_ebml_master_crc32(pb, &dyn_cp, mkv, MATROSKA_ID_SEEKHEAD, 0, 0);
remaining = seekhead->filepos + seekhead->reserved_size - avio_tell(pb);
put_ebml_void(pb, remaining);
return 0;
}
-static int mkv_add_cuepoint(MatroskaMuxContext *mkv, int stream, int tracknum, int64_t ts,
+static int mkv_add_cuepoint(MatroskaMuxContext *mkv, int stream, int64_t ts,
int64_t cluster_pos, int64_t relative_pos, int64_t duration)
{
mkv_cues *cues = &mkv->cues;
cues->entries[cues->num_entries].pts = ts;
cues->entries[cues->num_entries].stream_idx = stream;
- cues->entries[cues->num_entries].tracknum = tracknum;
cues->entries[cues->num_entries].cluster_pos = cluster_pos - mkv->segment_offset;
cues->entries[cues->num_entries].relative_pos = relative_pos;
cues->entries[cues->num_entries++].duration = duration;
continue;
tracks[idx].has_cue = 1;
track_positions = start_ebml_master(cuepoint, MATROSKA_ID_CUETRACKPOSITION, MAX_CUETRACKPOS_SIZE);
- put_ebml_uint(cuepoint, MATROSKA_ID_CUETRACK , entry->tracknum );
+ put_ebml_uint(cuepoint, MATROSKA_ID_CUETRACK , tracks[idx].track_num);
put_ebml_uint(cuepoint, MATROSKA_ID_CUECLUSTERPOSITION , entry->cluster_pos);
put_ebml_uint(cuepoint, MATROSKA_ID_CUERELATIVEPOSITION, entry->relative_pos);
if (entry->duration != -1)
}
static int mkv_write_track(AVFormatContext *s, MatroskaMuxContext *mkv,
- int i, AVIOContext *pb, int default_stream_exists)
+ AVStream *st, mkv_track *track, AVIOContext *pb,
+ int default_stream_exists)
{
- AVStream *st = s->streams[i];
AVCodecParameters *par = st->codecpar;
- ebml_master subinfo, track;
+ ebml_master subinfo, track_master;
int native_id = 0;
int qt_id = 0;
- int bit_depth = av_get_bits_per_sample(par->codec_id);
+ int bit_depth;
int sample_rate = par->sample_rate;
int output_sample_rate = 0;
int display_width_div = 1;
return 0;
}
- if (par->codec_type == AVMEDIA_TYPE_AUDIO) {
- if (!bit_depth && par->codec_id != AV_CODEC_ID_ADPCM_G726) {
- if (par->bits_per_raw_sample)
- bit_depth = par->bits_per_raw_sample;
- else
- bit_depth = av_get_bytes_per_sample(par->format) << 3;
- }
- if (!bit_depth)
- bit_depth = par->bits_per_coded_sample;
- }
-
if (par->codec_id == AV_CODEC_ID_AAC) {
ret = get_aac_sample_rates(s, par->extradata, par->extradata_size, &sample_rate,
&output_sample_rate);
return ret;
}
- track = start_ebml_master(pb, MATROSKA_ID_TRACKENTRY, 0);
- 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);
+ track_master = start_ebml_master(pb, MATROSKA_ID_TRACKENTRY, 0);
+ put_ebml_uint(pb, MATROSKA_ID_TRACKNUMBER, track->track_num);
+ put_ebml_uid (pb, MATROSKA_ID_TRACKUID, track->uid);
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);
- if (mkv->mode != MODE_WEBM || par->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);
- }
+ put_ebml_string(pb, MATROSKA_ID_TRACKLANGUAGE,
+ tag && tag->value ? tag->value : "und");
// The default value for TRACKFLAGDEFAULT is 1, so add element
// if we need to clear it.
}
}
- if (par->codec_type == AVMEDIA_TYPE_AUDIO && par->initial_padding && par->codec_id == AV_CODEC_ID_OPUS) {
- int64_t codecdelay = av_rescale_q(par->initial_padding,
- (AVRational){ 1, 48000 },
- (AVRational){ 1, 1000000000 });
- if (codecdelay < 0) {
- av_log(s, AV_LOG_ERROR, "Initial padding is invalid\n");
- return AVERROR(EINVAL);
- }
-// mkv->tracks[i].ts_offset = av_rescale_q(par->initial_padding,
-// (AVRational){ 1, par->sample_rate },
-// st->time_base);
-
- put_ebml_uint(pb, MATROSKA_ID_CODECDELAY, codecdelay);
- }
- if (par->codec_id == AV_CODEC_ID_OPUS) {
- put_ebml_uint(pb, MATROSKA_ID_SEEKPREROLL, OPUS_SEEK_PREROLL);
- }
-
switch (par->codec_type) {
case AVMEDIA_TYPE_VIDEO:
mkv->have_video = 1;
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;
+ track->write_dts = 1;
s->internal->avoid_negative_ts_use_pts = 0;
}
break;
case AVMEDIA_TYPE_AUDIO:
+ if (par->initial_padding && par->codec_id == AV_CODEC_ID_OPUS) {
+ int64_t codecdelay = av_rescale_q(par->initial_padding,
+ (AVRational){ 1, 48000 },
+ (AVRational){ 1, 1000000000 });
+ if (codecdelay < 0) {
+ av_log(s, AV_LOG_ERROR, "Initial padding is invalid\n");
+ return AVERROR(EINVAL);
+ }
+// track->ts_offset = av_rescale_q(par->initial_padding,
+// (AVRational){ 1, par->sample_rate },
+// st->time_base);
+
+ put_ebml_uint(pb, MATROSKA_ID_CODECDELAY, codecdelay);
+ }
+ if (par->codec_id == AV_CODEC_ID_OPUS)
+ put_ebml_uint(pb, MATROSKA_ID_SEEKPREROLL, OPUS_SEEK_PREROLL);
+
put_ebml_uint(pb, MATROSKA_ID_TRACKTYPE, MATROSKA_TRACK_TYPE_AUDIO);
if (!native_id)
subinfo = start_ebml_master(pb, MATROSKA_ID_TRACKAUDIO, 0);
put_ebml_uint (pb, MATROSKA_ID_AUDIOCHANNELS , par->channels);
- mkv->tracks[i].sample_rate_offset = avio_tell(pb);
+ track->sample_rate_offset = avio_tell(pb);
put_ebml_float (pb, MATROSKA_ID_AUDIOSAMPLINGFREQ, sample_rate);
if (output_sample_rate)
put_ebml_float(pb, MATROSKA_ID_AUDIOOUTSAMPLINGFREQ, output_sample_rate);
+
+ bit_depth = av_get_bits_per_sample(par->codec_id);
+ if (!bit_depth && par->codec_id != AV_CODEC_ID_ADPCM_G726) {
+ if (par->bits_per_raw_sample)
+ bit_depth = par->bits_per_raw_sample;
+ else
+ bit_depth = av_get_bytes_per_sample(par->format) << 3;
+ }
+ if (!bit_depth)
+ bit_depth = par->bits_per_coded_sample;
if (bit_depth)
put_ebml_uint(pb, MATROSKA_ID_AUDIOBITDEPTH, bit_depth);
end_ebml_master(pb, subinfo);
}
if (mkv->mode != MODE_WEBM || par->codec_id != AV_CODEC_ID_WEBVTT) {
- mkv->tracks[i].codecpriv_offset = avio_tell(pb);
+ track->codecpriv_offset = avio_tell(pb);
ret = mkv_write_codecprivate(s, pb, par, native_id, qt_id);
if (ret < 0)
return ret;
}
- end_ebml_master(pb, track);
+ end_ebml_master(pb, track_master);
return 0;
}
default_stream_exists |= st->disposition & AV_DISPOSITION_DEFAULT;
}
for (i = 0; i < s->nb_streams; i++) {
- ret = mkv_write_track(s, mkv, i, mkv->tracks_bc, default_stream_exists);
+ AVStream *st = s->streams[i];
+ ret = mkv_write_track(s, mkv, st, &mkv->tracks[i],
+ mkv->tracks_bc, default_stream_exists);
if (ret < 0)
return ret;
}
end_ebml_master_crc32_preliminary(pb, mkv->tracks_bc,
MATROSKA_ID_TRACKS, &mkv->tracks_pos);
else
- end_ebml_master_crc32(pb, &mkv->tracks_bc, mkv, MATROSKA_ID_TRACKS, 0);
+ end_ebml_master_crc32(pb, &mkv->tracks_bc, mkv, MATROSKA_ID_TRACKS, 0, 0);
return 0;
}
static int mkv_write_chapters(AVFormatContext *s)
{
MatroskaMuxContext *mkv = s->priv_data;
- AVIOContext *dyn_cp, *pb = s->pb;
+ AVIOContext *dyn_cp = NULL, *pb = s->pb;
ebml_master editionentry;
AVRational scale = {1, 1E9};
int i, ret;
editionentry = start_ebml_master(dyn_cp, MATROSKA_ID_EDITIONENTRY, 0);
if (mkv->mode != MODE_WEBM) {
put_ebml_uint(dyn_cp, MATROSKA_ID_EDITIONFLAGDEFAULT, 1);
- put_ebml_uint(dyn_cp, MATROSKA_ID_EDITIONFLAGHIDDEN , 0);
}
for (i = 0; i < s->nb_chapters; i++) {
ebml_master chapteratom, chapterdisplay;
}
chapteratom = start_ebml_master(dyn_cp, MATROSKA_ID_CHAPTERATOM, 0);
- put_ebml_uint(dyn_cp, MATROSKA_ID_CHAPTERUID, c->id + mkv->chapter_id_offset);
+ put_ebml_uint(dyn_cp, MATROSKA_ID_CHAPTERUID,
+ (uint32_t)c->id + (uint64_t)mkv->chapter_id_offset);
put_ebml_uint(dyn_cp, MATROSKA_ID_CHAPTERTIMESTART, chapterstart);
put_ebml_uint(dyn_cp, MATROSKA_ID_CHAPTERTIMEEND, chapterend);
- if (mkv->mode != MODE_WEBM) {
- put_ebml_uint(dyn_cp, MATROSKA_ID_CHAPTERFLAGHIDDEN , 0);
- put_ebml_uint(dyn_cp, MATROSKA_ID_CHAPTERFLAGENABLED, 1);
- }
if ((t = av_dict_get(c->metadata, "title", NULL, 0))) {
chapterdisplay = start_ebml_master(dyn_cp, MATROSKA_ID_CHAPTERDISPLAY, 0);
put_ebml_string(dyn_cp, MATROSKA_ID_CHAPSTRING, t->value);
end_ebml_master(dyn_cp, chapteratom);
}
end_ebml_master(dyn_cp, editionentry);
- end_ebml_master_crc32(pb, &dyn_cp, mkv, MATROSKA_ID_CHAPTERS, 0);
+ end_ebml_master_crc32(pb, &dyn_cp, mkv, MATROSKA_ID_CHAPTERS, 0, 0);
mkv->wrote_chapters = 1;
return 0;
}
static int mkv_write_tag_targets(AVFormatContext *s, uint32_t elementid,
- unsigned int uid, ebml_master *tag)
+ uint64_t uid, ebml_master *tag)
{
AVIOContext *pb;
MatroskaMuxContext *mkv = s->priv_data;
*tag = start_ebml_master(pb, MATROSKA_ID_TAG, 0);
targets = start_ebml_master(pb, MATROSKA_ID_TAGTARGETS, 0);
if (elementid)
- put_ebml_uint(pb, elementid, uid);
+ put_ebml_uid(pb, elementid, uid);
end_ebml_master(pb, targets);
return 0;
}
}
static int mkv_write_tag(AVFormatContext *s, AVDictionary *m, uint32_t elementid,
- unsigned int uid)
+ uint64_t uid, ebml_master *tag)
{
MatroskaMuxContext *mkv = s->priv_data;
- ebml_master tag;
+ ebml_master tag2;
int ret;
AVDictionaryEntry *t = NULL;
- ret = mkv_write_tag_targets(s, elementid, uid, &tag);
+ ret = mkv_write_tag_targets(s, elementid, uid, tag ? tag : &tag2);
if (ret < 0)
return ret;
}
}
- end_ebml_master(mkv->tags_bc, tag);
+ if (!tag)
+ end_ebml_master(mkv->tags_bc, tag2);
+
return 0;
}
static int mkv_write_tags(AVFormatContext *s)
{
MatroskaMuxContext *mkv = s->priv_data;
+ ebml_master tag, *tagp;
int i, ret;
ff_metadata_conv_ctx(s, ff_mkv_metadata_conv, NULL);
if (mkv_check_tag(s->metadata, 0)) {
- ret = mkv_write_tag(s, s->metadata, 0, 0);
+ ret = mkv_write_tag(s, s->metadata, 0, 0, NULL);
if (ret < 0) return ret;
}
+ tagp = (s->pb->seekable & AVIO_SEEKABLE_NORMAL) && !mkv->is_live ? &tag : NULL;
for (i = 0; i < s->nb_streams; i++) {
AVStream *st = s->streams[i];
+ mkv_track *track = &mkv->tracks[i];
if (st->codecpar->codec_type == AVMEDIA_TYPE_ATTACHMENT)
continue;
- if (!mkv_check_tag(st->metadata, MATROSKA_ID_TAGTARGETS_TRACKUID))
+ if (!tagp && !mkv_check_tag(st->metadata, MATROSKA_ID_TAGTARGETS_TRACKUID))
continue;
- ret = mkv_write_tag(s, st->metadata, MATROSKA_ID_TAGTARGETS_TRACKUID, i + 1);
+ ret = mkv_write_tag(s, st->metadata, MATROSKA_ID_TAGTARGETS_TRACKUID,
+ track->uid, tagp);
if (ret < 0) return ret;
- }
- if ((s->pb->seekable & AVIO_SEEKABLE_NORMAL) && !mkv->is_live) {
- for (i = 0; i < s->nb_streams; i++) {
- AVIOContext *pb;
- AVStream *st = s->streams[i];
- ebml_master tag_target;
- ebml_master tag;
+ if (tagp) {
+ AVIOContext *pb = mkv->tags_bc;
+ ebml_master simpletag;
- if (st->codecpar->codec_type == AVMEDIA_TYPE_ATTACHMENT)
- continue;
-
- ret = mkv_write_tag_targets(s, MATROSKA_ID_TAGTARGETS_TRACKUID,
- i + 1, &tag_target);
- if (ret < 0)
- return ret;
- pb = mkv->tags_bc;
-
- tag = start_ebml_master(pb, MATROSKA_ID_SIMPLETAG, 0);
+ simpletag = start_ebml_master(pb, MATROSKA_ID_SIMPLETAG, 0);
put_ebml_string(pb, MATROSKA_ID_TAGNAME, "DURATION");
mkv->tracks[i].duration_offset = avio_tell(pb);
// Reserve space to write duration as a 20-byte string.
// 2 (ebml id) + 1 (data size) + 20 (data)
put_ebml_void(pb, 23);
+ end_ebml_master(pb, simpletag);
end_ebml_master(pb, tag);
- end_ebml_master(pb, tag_target);
}
}
if (!mkv_check_tag(ch->metadata, MATROSKA_ID_TAGTARGETS_CHAPTERUID))
continue;
- ret = mkv_write_tag(s, ch->metadata, MATROSKA_ID_TAGTARGETS_CHAPTERUID, ch->id + mkv->chapter_id_offset);
+ ret = mkv_write_tag(s, ch->metadata, MATROSKA_ID_TAGTARGETS_CHAPTERUID,
+ (uint32_t)ch->id + (uint64_t)mkv->chapter_id_offset,
+ NULL);
if (ret < 0)
return ret;
}
}
if (mkv->have_attachments && mkv->mode != MODE_WEBM) {
- for (i = 0; i < mkv->attachments->num_entries; i++) {
- mkv_attachment *attachment = &mkv->attachments->entries[i];
- AVStream *st = s->streams[attachment->stream_idx];
+ for (i = 0; i < s->nb_streams; i++) {
+ mkv_track *track = &mkv->tracks[i];
+ AVStream *st = s->streams[i];
+
+ if (st->codecpar->codec_type != AVMEDIA_TYPE_ATTACHMENT)
+ continue;
if (!mkv_check_tag(st->metadata, MATROSKA_ID_TAGTARGETS_ATTACHUID))
continue;
- ret = mkv_write_tag(s, st->metadata, MATROSKA_ID_TAGTARGETS_ATTACHUID, attachment->fileuid);
+ ret = mkv_write_tag(s, st->metadata, MATROSKA_ID_TAGTARGETS_ATTACHUID,
+ track->uid, NULL);
if (ret < 0)
return ret;
}
end_ebml_master_crc32_preliminary(s->pb, mkv->tags_bc,
MATROSKA_ID_TAGS, &mkv->tags_pos);
else
- end_ebml_master_crc32(s->pb, &mkv->tags_bc, mkv, MATROSKA_ID_TAGS, 0);
+ end_ebml_master_crc32(s->pb, &mkv->tags_bc, mkv, MATROSKA_ID_TAGS, 0, 0);
}
return 0;
}
static int mkv_write_attachments(AVFormatContext *s)
{
MatroskaMuxContext *mkv = s->priv_data;
- AVIOContext *dyn_cp, *pb = s->pb;
- AVLFG c;
+ AVIOContext *dyn_cp = NULL, *pb = s->pb;
int i, ret;
if (!mkv->have_attachments)
return 0;
- mkv->attachments = av_mallocz(sizeof(*mkv->attachments));
- if (!mkv->attachments)
- return AVERROR(ENOMEM);
-
- av_lfg_init(&c, av_get_random_seed());
-
mkv_add_seekhead_entry(mkv, MATROSKA_ID_ATTACHMENTS, avio_tell(pb));
ret = start_ebml_master_crc32(&dyn_cp, mkv);
for (i = 0; i < s->nb_streams; i++) {
AVStream *st = s->streams[i];
+ mkv_track *track = &mkv->tracks[i];
ebml_master attached_file;
- mkv_attachment *attachment = mkv->attachments->entries;
AVDictionaryEntry *t;
const char *mimetype = NULL;
- uint32_t fileuid;
if (st->codecpar->codec_type != AVMEDIA_TYPE_ATTACHMENT)
continue;
- attachment = av_realloc_array(attachment, mkv->attachments->num_entries + 1, sizeof(mkv_attachment));
- if (!attachment)
- return AVERROR(ENOMEM);
- mkv->attachments->entries = attachment;
-
attached_file = start_ebml_master(dyn_cp, MATROSKA_ID_ATTACHEDFILE, 0);
if (t = av_dict_get(st->metadata, "title", NULL, 0))
if (t = av_dict_get(st->metadata, "mimetype", NULL, 0))
mimetype = t->value;
else if (st->codecpar->codec_id != AV_CODEC_ID_NONE ) {
- int i;
- for (i = 0; ff_mkv_mime_tags[i].id != AV_CODEC_ID_NONE; i++)
- if (ff_mkv_mime_tags[i].id == st->codecpar->codec_id) {
- mimetype = ff_mkv_mime_tags[i].str;
- break;
- }
- for (i = 0; ff_mkv_image_mime_tags[i].id != AV_CODEC_ID_NONE; i++)
- if (ff_mkv_image_mime_tags[i].id == st->codecpar->codec_id) {
- mimetype = ff_mkv_image_mime_tags[i].str;
- break;
- }
+ const AVCodecDescriptor *desc = avcodec_descriptor_get(st->codecpar->codec_id);
+ if (desc && desc->mime_types) {
+ mimetype = desc->mime_types[0];
+ } else if (st->codecpar->codec_id = AV_CODEC_ID_TEXT)
+ mimetype = "text/plain";
}
if (!mimetype) {
av_log(s, AV_LOG_ERROR, "Attachment stream %d has no mimetype tag and "
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->codecpar->extradata, st->codecpar->extradata_size);
- av_sha_final(sha, digest);
- av_free(sha);
- fileuid = AV_RL32(digest);
- } else {
- fileuid = av_lfg_get(&c);
- }
- av_log(s, AV_LOG_VERBOSE, "Using %.8"PRIx32" for attachment %d\n",
- fileuid, mkv->attachments->num_entries);
-
put_ebml_string(dyn_cp, MATROSKA_ID_FILEMIMETYPE, mimetype);
put_ebml_binary(dyn_cp, MATROSKA_ID_FILEDATA, st->codecpar->extradata, st->codecpar->extradata_size);
- put_ebml_uint(dyn_cp, MATROSKA_ID_FILEUID, fileuid);
+ put_ebml_uid(dyn_cp, MATROSKA_ID_FILEUID, track->uid);
end_ebml_master(dyn_cp, attached_file);
-
- mkv->attachments->entries[mkv->attachments->num_entries].stream_idx = i;
- mkv->attachments->entries[mkv->attachments->num_entries++].fileuid = fileuid;
}
- end_ebml_master_crc32(pb, &dyn_cp, mkv, MATROSKA_ID_ATTACHMENTS, 0);
+ end_ebml_master_crc32(pb, &dyn_cp, mkv, MATROSKA_ID_ATTACHMENTS, 0, 0);
return 0;
}
version = 4;
}
- mkv->tracks = av_mallocz_array(s->nb_streams, sizeof(*mkv->tracks));
- if (!mkv->tracks) {
- return AVERROR(ENOMEM);
- }
ebml_header = start_ebml_master(pb, EBML_ID_HEADER, MAX_EBML_HEADER_SIZE);
put_ebml_uint (pb, EBML_ID_EBMLVERSION , 1);
put_ebml_uint (pb, EBML_ID_EBMLREADVERSION , 1);
put_ebml_string(pb, MATROSKA_ID_WRITINGAPP, LIBAVFORMAT_IDENT);
if (mkv->mode != MODE_WEBM) {
- uint32_t segment_uid[4];
- AVLFG lfg;
-
- av_lfg_init(&lfg, av_get_random_seed());
-
- for (i = 0; i < 4; i++)
- segment_uid[i] = av_lfg_get(&lfg);
-
- put_ebml_binary(pb, MATROSKA_ID_SEGMENTUID, segment_uid, 16);
+ put_ebml_binary(pb, MATROSKA_ID_SEGMENTUID, mkv->segment_uid, 16);
}
} else {
const char *ident = "Lavf";
end_ebml_master_crc32_preliminary(s->pb, mkv->info_bc,
MATROSKA_ID_INFO, &mkv->info_pos);
else
- end_ebml_master_crc32(s->pb, &mkv->info_bc, mkv, MATROSKA_ID_INFO, 0);
+ end_ebml_master_crc32(s->pb, &mkv->info_bc, mkv, MATROSKA_ID_INFO, 0, 0);
pb = s->pb;
ret = mkv_write_tracks(s);
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 (!s->chapters[i]->id) {
+ mkv->chapter_id_offset = 1;
+ break;
+ }
ret = mkv_write_chapters(s);
if (ret < 0)
uint8_t *data = NULL, *side_data = NULL;
int err = 0, offset = 0, size = pkt->size, side_data_size = 0;
int64_t ts = track->write_dts ? pkt->dts : pkt->pts;
- uint64_t additional_id = 0;
+ uint64_t additional_id;
int64_t discard_padding = 0;
- uint8_t track_number = (mkv->is_dash ? mkv->dash_track_number : (pkt->stream_index + 1));
+ unsigned track_number = track->track_num;
ebml_master block_group, block_additions, block_more;
ts += track->ts_offset;
av_log(s, AV_LOG_DEBUG,
"Writing block of size %d with pts %" PRId64 ", dts %" PRId64 ", "
"duration %" PRId64 " at relative offset %" PRId64 " in cluster "
- "at offset %" PRId64 ". TrackNumber %d, keyframe %d\n",
+ "at offset %" PRId64 ". TrackNumber %u, keyframe %d\n",
pkt->size, pkt->pts, pkt->dts, pkt->duration, avio_tell(pb),
mkv->cluster_pos, track_number, keyframe != 0);
AV_PKT_DATA_MATROSKA_BLOCKADDITIONAL,
&side_data_size);
if (side_data) {
- if (side_data_size < 8) {
+ // Only the Codec-specific BlockMore (id == 1) is currently supported.
+ if (side_data_size < 8 || (additional_id = AV_RB64(side_data)) != 1) {
side_data_size = 0;
} else {
- additional_id = AV_RB64(side_data);
side_data += 8;
side_data_size -= 8;
}
}
- if ((side_data_size && additional_id == 1) || discard_padding) {
+ if (side_data_size || discard_padding) {
block_group = start_ebml_master(pb, MATROSKA_ID_BLOCKGROUP, 0);
blockid = MATROSKA_ID_BLOCK;
}
put_ebml_sint(pb, MATROSKA_ID_DISCARDPADDING, discard_padding);
}
- if (side_data_size && additional_id == 1) {
+ if (side_data_size) {
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);
+ /* Until dbc50f8a our demuxer used a wrong default value
+ * of BlockAddID, so we write it unconditionally. */
+ put_ebml_uint (pb, MATROSKA_ID_BLOCKADDID, additional_id);
+ put_ebml_binary(pb, MATROSKA_ID_BLOCKADDITIONAL,
+ 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) {
+ if (side_data_size || discard_padding) {
end_ebml_master(pb, block_group);
}
static int mkv_write_vtt_blocks(AVFormatContext *s, AVIOContext *pb, AVPacket *pkt)
{
MatroskaMuxContext *mkv = s->priv_data;
+ mkv_track *track = &mkv->tracks[pkt->stream_index];
ebml_master blockgroup;
int id_size, settings_size, size;
uint8_t *id, *settings;
av_log(s, AV_LOG_DEBUG,
"Writing block of size %d with pts %" PRId64 ", dts %" PRId64 ", "
"duration %" PRId64 " at relative offset %" PRId64 " in cluster "
- "at offset %" PRId64 ". TrackNumber %d, keyframe %d\n",
+ "at offset %" PRId64 ". TrackNumber %u, keyframe %d\n",
size, pkt->pts, pkt->dts, pkt->duration, avio_tell(pb),
- mkv->cluster_pos, pkt->stream_index + 1, 1);
+ mkv->cluster_pos, track->track_num, 1);
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_w8(pb, 0x80 | track->track_num); // this assumes track_num 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);
{
MatroskaMuxContext *mkv = s->priv_data;
- end_ebml_master_crc32(s->pb, &mkv->cluster_bc, mkv, MATROSKA_ID_CLUSTER, 0);
+ end_ebml_master_crc32(s->pb, &mkv->cluster_bc, mkv, MATROSKA_ID_CLUSTER, 0, 1);
mkv->cluster_pos = -1;
avio_write_marker(s->pb, AV_NOPTS_VALUE, AVIO_DATA_MARKER_FLUSH_POINT);
}
case AV_CODEC_ID_AAC:
if (side_data_size && (s->pb->seekable & AVIO_SEEKABLE_NORMAL) && !mkv->is_live) {
int filler, output_sample_rate = 0;
- int64_t curpos;
ret = get_aac_sample_rates(s, side_data, side_data_size, &track->sample_rate,
&output_sample_rate);
if (ret < 0)
if (ret < 0)
return ret;
memcpy(par->extradata, side_data, side_data_size);
- curpos = avio_tell(mkv->tracks_bc);
avio_seek(mkv->tracks_bc, track->codecpriv_offset, SEEK_SET);
mkv_write_codecprivate(s, mkv->tracks_bc, par, 1, 0);
filler = MAX_PCE_SIZE + 2 + 4 - (avio_tell(mkv->tracks_bc) - track->codecpriv_offset);
avio_seek(mkv->tracks_bc, track->sample_rate_offset, SEEK_SET);
put_ebml_float(mkv->tracks_bc, MATROSKA_ID_AUDIOSAMPLINGFREQ, track->sample_rate);
put_ebml_float(mkv->tracks_bc, MATROSKA_ID_AUDIOOUTSAMPLINGFREQ, output_sample_rate);
- avio_seek(mkv->tracks_bc, curpos, SEEK_SET);
} else if (!par->extradata_size && !track->sample_rate) {
// No extradata (codecpar or packet side data).
av_log(s, AV_LOG_ERROR, "Error parsing AAC extradata, unable to determine samplerate.\n");
case AV_CODEC_ID_FLAC:
if (side_data_size && (s->pb->seekable & AVIO_SEEKABLE_NORMAL) && !mkv->is_live) {
AVCodecParameters *codecpriv_par;
- int64_t curpos;
if (side_data_size != par->extradata_size) {
av_log(s, AV_LOG_ERROR, "Invalid FLAC STREAMINFO metadata for output stream %d\n",
pkt->stream_index);
return ret;
}
memcpy(codecpriv_par->extradata, side_data, side_data_size);
- curpos = avio_tell(mkv->tracks_bc);
avio_seek(mkv->tracks_bc, track->codecpriv_offset, SEEK_SET);
mkv_write_codecprivate(s, mkv->tracks_bc, codecpriv_par, 1, 0);
- avio_seek(mkv->tracks_bc, curpos, SEEK_SET);
avcodec_parameters_free(&codecpriv_par);
}
break;
AVIOContext *dyn_cp;
uint8_t *codecpriv;
int codecpriv_size;
- int64_t curpos;
ret = avio_open_dyn_buf(&dyn_cp);
if (ret < 0)
return ret;
av_free(codecpriv);
return AVERROR_INVALIDDATA;
}
- curpos = avio_tell(mkv->tracks_bc);
avio_seek(mkv->tracks_bc, track->codecpriv_offset, SEEK_SET);
// Do not write the OBUs as we don't have space saved for them
put_ebml_binary(mkv->tracks_bc, MATROSKA_ID_CODECPRIVATE, codecpriv, 4);
av_free(codecpriv);
- avio_seek(mkv->tracks_bc, curpos, SEEK_SET);
ret = ff_alloc_extradata(par, side_data_size);
if (ret < 0)
return ret;
int ret;
int64_t ts = track->write_dts ? pkt->dts : pkt->pts;
int64_t relative_packet_pos;
- int 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");
if (ret < 0)
return ret;
if ((s->pb->seekable & AVIO_SEEKABLE_NORMAL) && (par->codec_type == AVMEDIA_TYPE_VIDEO && keyframe || add_cue)) {
- ret = mkv_add_cuepoint(mkv, pkt->stream_index, tracknum, ts,
+ ret = mkv_add_cuepoint(mkv, pkt->stream_index, ts,
mkv->cluster_pos, relative_packet_pos, -1);
if (ret < 0) return ret;
}
}
if (s->pb->seekable & AVIO_SEEKABLE_NORMAL) {
- ret = mkv_add_cuepoint(mkv, pkt->stream_index, tracknum, ts,
+ ret = mkv_add_cuepoint(mkv, pkt->stream_index, ts,
mkv->cluster_pos, relative_packet_pos, duration);
if (ret < 0)
return ret;
}
if (mkv->cluster_bc) {
- end_ebml_master_crc32(pb, &mkv->cluster_bc, mkv, MATROSKA_ID_CLUSTER, 0);
+ end_ebml_master_crc32(pb, &mkv->cluster_bc, mkv,
+ MATROSKA_ID_CLUSTER, 0, 0);
}
ret = mkv_write_chapters(s);
endpos = avio_tell(pb);
if (mkv->cues.num_entries) {
- AVIOContext *cues;
+ AVIOContext *cues = NULL;
uint64_t size;
int64_t cuespos = endpos;
int length_size = 0;
}
}
mkv_add_seekhead_entry(mkv, MATROSKA_ID_CUES, cuespos);
- end_ebml_master_crc32(pb, &cues, mkv, MATROSKA_ID_CUES, length_size);
+ end_ebml_master_crc32(pb, &cues, mkv, MATROSKA_ID_CUES,
+ length_size, 0);
if (mkv->reserve_cues_space) {
if (size < mkv->reserve_cues_space)
put_ebml_void(pb, mkv->reserve_cues_space - size);
av_log(s, AV_LOG_DEBUG, "end duration = %" PRIu64 "\n", mkv->duration);
avio_seek(mkv->info_bc, mkv->duration_offset, SEEK_SET);
put_ebml_float(mkv->info_bc, MATROSKA_ID_DURATION, mkv->duration);
- end_ebml_master_crc32(pb, &mkv->info_bc, mkv, MATROSKA_ID_INFO, 0);
+ end_ebml_master_crc32(pb, &mkv->info_bc, mkv, MATROSKA_ID_INFO, 0, 0);
// write tracks master
avio_seek(pb, mkv->tracks_pos, SEEK_SET);
- end_ebml_master_crc32(pb, &mkv->tracks_bc, mkv, MATROSKA_ID_TRACKS, 0);
+ end_ebml_master_crc32(pb, &mkv->tracks_bc, mkv, MATROSKA_ID_TRACKS, 0, 0);
// update stream durations
- if (!mkv->is_live) {
+ if (mkv->tags_bc) {
int i;
- int64_t curr = avio_tell(mkv->tags_bc);
for (i = 0; i < s->nb_streams; ++i) {
AVStream *st = s->streams[i];
mkv_track *track = &mkv->tracks[i];
put_ebml_binary(mkv->tags_bc, MATROSKA_ID_TAGSTRING, duration_string, 20);
}
}
- avio_seek(mkv->tags_bc, curr, SEEK_SET);
- }
- if (mkv->tags_bc && !mkv->is_live) {
+
avio_seek(pb, mkv->tags_pos, SEEK_SET);
- end_ebml_master_crc32(pb, &mkv->tags_bc, mkv, MATROSKA_ID_TAGS, 0);
+ end_ebml_master_crc32(pb, &mkv->tags_bc, mkv, MATROSKA_ID_TAGS, 0, 0);
}
avio_seek(pb, endpos, SEEK_SET);
return 0;
}
+static uint64_t mkv_get_uid(const mkv_track *tracks, int i, AVLFG *c)
+{
+ while (1) {
+ uint64_t uid;
+ int k;
+ uid = (uint64_t)av_lfg_get(c) << 32;
+ uid |= av_lfg_get(c);
+ if (!uid)
+ continue;
+ for (k = 0; k < i; k++) {
+ if (tracks[k].uid == uid)
+ break;
+ }
+ if (k == i)
+ return uid;
+ }
+}
+
static int mkv_init(struct AVFormatContext *s)
{
+ MatroskaMuxContext *mkv = s->priv_data;
+ AVLFG c;
+ unsigned nb_tracks = 0;
int i;
- if (s->nb_streams > MAX_TRACKS) {
- av_log(s, AV_LOG_ERROR,
- "At most %d streams are supported for muxing in Matroska\n",
- MAX_TRACKS);
- return AVERROR(EINVAL);
- }
-
for (i = 0; i < s->nb_streams; i++) {
if (s->streams[i]->codecpar->codec_id == AV_CODEC_ID_ATRAC3 ||
s->streams[i]->codecpar->codec_id == AV_CODEC_ID_COOK ||
s->internal->avoid_negative_ts_use_pts = 1;
}
+ mkv->tracks = av_mallocz_array(s->nb_streams, sizeof(*mkv->tracks));
+ if (!mkv->tracks) {
+ return AVERROR(ENOMEM);
+ }
+
+ if (!(s->flags & AVFMT_FLAG_BITEXACT)) {
+ av_lfg_init(&c, av_get_random_seed());
+
+ // Calculate the SegmentUID now in order not to waste our random seed.
+ for (i = 0; i < 4; i++)
+ mkv->segment_uid[i] = av_lfg_get(&c);
+ }
+
for (i = 0; i < s->nb_streams; i++) {
+ AVStream *st = s->streams[i];
+ mkv_track *track = &mkv->tracks[i];
+
+ if (s->flags & AVFMT_FLAG_BITEXACT) {
+ track->uid = i + 1;
+ } else {
+ track->uid = mkv_get_uid(mkv->tracks, i, &c);
+ }
+
// ms precision is the de-facto standard timescale for mkv files
avpriv_set_pts_info(s->streams[i], 64, 1, 1000);
+
+ if (st->codecpar->codec_type == AVMEDIA_TYPE_ATTACHMENT)
+ continue;
+
+ nb_tracks++;
+ track->track_num = mkv->is_dash ? mkv->dash_track_number : nb_tracks;
+ }
+
+ if (nb_tracks > MAX_TRACKS) {
+ av_log(s, AV_LOG_ERROR,
+ "%u > "AV_STRINGIFY(MAX_TRACKS)" tracks (excluding attachments)"
+ " not supported for muxing in Matroska\n", nb_tracks);
+ return AVERROR(EINVAL);
}
return 0;
projects / ffmpeg / blobdiff