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avformat/matroskaenc: write a CRC32 element on Tags 

Implements part of ticket #4347

Tested-by: Dave Rice <dave@dericed.com>
Tested-by: Jerome Martinez <jerome@mediaarea.net>
Reviewed-by: Michael Niedermayer <michael@niedermayer.cc>
Signed-off-by: James Almer <jamrial@gmail.com>
tags/n3.2
James Almer 8 years ago
parent
4687240d52
commit
650e17d88b
5 changed files with 66 additions and 52 deletions
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  1. +36
    -22
      libavformat/matroskaenc.c
  2. +2
    -2
      tests/ref/fate/rgb24-mkv
  3. +2
    -2
      tests/ref/lavf/mka
  4. +4
    -4
      tests/ref/lavf/mkv
  5. +22
    -22
      tests/ref/seek/lavf-mkv

+ 36
- 22
libavformat/matroskaenc.c View File

@@ -107,6 +107,8 @@ typedef struct MatroskaMuxContext {
const AVClass *class;
int mode;
AVIOContext *dyn_bc;
AVIOContext *tags_bc;
ebml_master tags;
ebml_master segment;
int64_t segment_offset;
ebml_master cluster;
@@ -1359,6 +1361,7 @@ static int mkv_write_tag_targets(AVFormatContext *s,
unsigned int elementid, unsigned int uid,
ebml_master *tags, ebml_master* tag)
{
AVIOContext *pb;
MatroskaMuxContext *mkv = s->priv_data;
ebml_master targets;
int ret;
@@ -1367,14 +1370,15 @@ static int mkv_write_tag_targets(AVFormatContext *s,
ret = mkv_add_seekhead_entry(mkv->main_seekhead, MATROSKA_ID_TAGS, avio_tell(s->pb));
if (ret < 0) return ret;

*tags = start_ebml_master(s->pb, MATROSKA_ID_TAGS, 0);
start_ebml_master_crc32(s->pb, &mkv->tags_bc, tags, MATROSKA_ID_TAGS, 0);
}
pb = mkv->tags_bc;

*tag = start_ebml_master(s->pb, MATROSKA_ID_TAG, 0);
targets = start_ebml_master(s->pb, MATROSKA_ID_TAGTARGETS, 0);
*tag = start_ebml_master(pb, MATROSKA_ID_TAG, 0);
targets = start_ebml_master(pb, MATROSKA_ID_TAGTARGETS, 0);
if (elementid)
put_ebml_uint(s->pb, elementid, uid);
end_ebml_master(s->pb, targets);
put_ebml_uint(pb, elementid, uid);
end_ebml_master(pb, targets);
return 0;
}

@@ -1392,6 +1396,7 @@ static int mkv_check_tag_name(const char *name, unsigned int elementid)
static int mkv_write_tag(AVFormatContext *s, AVDictionary *m, unsigned int elementid,
unsigned int uid, ebml_master *tags)
{
MatroskaMuxContext *mkv = s->priv_data;
ebml_master tag;
int ret;
AVDictionaryEntry *t = NULL;
@@ -1402,13 +1407,13 @@ static int mkv_write_tag(AVFormatContext *s, AVDictionary *m, unsigned int eleme

while ((t = av_dict_get(m, "", t, AV_DICT_IGNORE_SUFFIX))) {
if (mkv_check_tag_name(t->key, elementid)) {
ret = mkv_write_simpletag(s->pb, t);
ret = mkv_write_simpletag(mkv->tags_bc, t);
if (ret < 0)
return ret;
}
}

end_ebml_master(s->pb, tag);
end_ebml_master(mkv->tags_bc, tag);
return 0;
}

@@ -1426,13 +1431,12 @@ static int mkv_check_tag(AVDictionary *m, unsigned int elementid)
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 (mkv_check_tag(s->metadata, 0)) {
ret = mkv_write_tag(s, s->metadata, 0, 0, &tags);
ret = mkv_write_tag(s, s->metadata, 0, 0, &mkv->tags);
if (ret < 0) return ret;
}

@@ -1442,26 +1446,28 @@ static int mkv_write_tags(AVFormatContext *s)
if (!mkv_check_tag(st->metadata, MATROSKA_ID_TAGTARGETS_TRACKUID))
continue;

ret = mkv_write_tag(s, st->metadata, MATROSKA_ID_TAGTARGETS_TRACKUID, i + 1, &tags);
ret = mkv_write_tag(s, st->metadata, MATROSKA_ID_TAGTARGETS_TRACKUID, i + 1, &mkv->tags);
if (ret < 0) return ret;
}

if (s->pb->seekable && !mkv->is_live) {
for (i = 0; i < s->nb_streams; i++) {
AVIOContext *pb;
ebml_master tag_target;
ebml_master tag;

mkv_write_tag_targets(s, MATROSKA_ID_TAGTARGETS_TRACKUID, i + 1, &tags, &tag_target);
mkv_write_tag_targets(s, MATROSKA_ID_TAGTARGETS_TRACKUID, i + 1, &mkv->tags, &tag_target);
pb = mkv->tags_bc;

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);
tag = start_ebml_master(pb, MATROSKA_ID_SIMPLETAG, 0);
put_ebml_string(pb, MATROSKA_ID_TAGNAME, "DURATION");
mkv->stream_duration_offsets[i] = avio_tell(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);
put_ebml_void(pb, 23);
end_ebml_master(pb, tag);
end_ebml_master(pb, tag_target);
}
}

@@ -1471,12 +1477,16 @@ static int mkv_write_tags(AVFormatContext *s)
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, &tags);
ret = mkv_write_tag(s, ch->metadata, MATROSKA_ID_TAGTARGETS_CHAPTERUID, ch->id + mkv->chapter_id_offset, &mkv->tags);
if (ret < 0) return ret;
}

if (tags.pos)
end_ebml_master(s->pb, tags);
if (mkv->tags.pos) {
if (s->pb->seekable && !mkv->is_live)
put_ebml_void(s->pb, avio_tell(mkv->tags_bc) + ((mkv->mode != MODE_WEBM) ? 2 /* ebml id + data size */ + 4 /* CRC32 */ : 0));
else
end_ebml_master_crc32(s->pb, &mkv->tags_bc, mkv, mkv->tags);
}
return 0;
}

@@ -2252,16 +2262,20 @@ static int mkv_write_trailer(AVFormatContext *s)
mkv->stream_durations[i]);

if (!mkv->is_live && mkv->stream_duration_offsets[i] > 0) {
avio_seek(pb, mkv->stream_duration_offsets[i], SEEK_SET);
avio_seek(mkv->tags_bc, 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);
put_ebml_binary(mkv->tags_bc, MATROSKA_ID_TAGSTRING, duration_string, 20);
}
}
}
if (mkv->tags.pos && !mkv->is_live) {
avio_seek(pb, mkv->tags.pos, SEEK_SET);
end_ebml_master_crc32(pb, &mkv->tags_bc, mkv, mkv->tags);
}

avio_seek(pb, currentpos, SEEK_SET);
}


+ 2
- 2
tests/ref/fate/rgb24-mkv View File

@@ -1,5 +1,5 @@
d8fbc09b7061d57eb8efa807d1462c41 *tests/data/fate/rgb24-mkv.matroska
58345 tests/data/fate/rgb24-mkv.matroska
cc45779160972ebab95412ba75f35d4c *tests/data/fate/rgb24-mkv.matroska
58351 tests/data/fate/rgb24-mkv.matroska
#tb 0: 1/10
#media_type 0: video
#codec_id 0: rawvideo


+ 2
- 2
tests/ref/lavf/mka View File

@@ -1,3 +1,3 @@
927a5d1e7837735271f57b329f1c9d7a *./tests/data/lavf/lavf.mka
43672 ./tests/data/lavf/lavf.mka
afd0c76b5fd8ca5ee47d12af7f92d024 *./tests/data/lavf/lavf.mka
43678 ./tests/data/lavf/lavf.mka
./tests/data/lavf/lavf.mka CRC=0x3a1da17e

+ 4
- 4
tests/ref/lavf/mkv View File

@@ -1,6 +1,6 @@
c7c1e2e55e8f04708deb6a552ae59fda *./tests/data/lavf/lavf.mkv
472917 ./tests/data/lavf/lavf.mkv
af35b4e2fdea37a8874dbfbf7a691011 *./tests/data/lavf/lavf.mkv
472923 ./tests/data/lavf/lavf.mkv
./tests/data/lavf/lavf.mkv CRC=0xec6c3c68
82cd3b90ed54ede177d1a7e6c96ee801 *./tests/data/lavf/lavf.mkv
320587 ./tests/data/lavf/lavf.mkv
9daaedc22e6580cf6c7364e486fd1ee0 *./tests/data/lavf/lavf.mkv
320593 ./tests/data/lavf/lavf.mkv
./tests/data/lavf/lavf.mkv CRC=0xec6c3c68

+ 22
- 22
tests/ref/seek/lavf-mkv View File

@@ -1,48 +1,48 @@
ret: 0 st: 1 flags:1 dts: 0.000000 pts: 0.000000 pos: 818 size: 208
ret: 0 st: 1 flags:1 dts: 0.000000 pts: 0.000000 pos: 824 size: 208
ret: 0 st:-1 flags:0 ts:-1.000000
ret: 0 st: 0 flags:1 dts: 0.011000 pts: 0.011000 pos: 1034 size: 27837
ret: 0 st: 0 flags:1 dts: 0.011000 pts: 0.011000 pos: 1040 size: 27837
ret: 0 st:-1 flags:1 ts: 1.894167
ret: 0 st: 0 flags:1 dts: 0.971000 pts: 0.971000 pos: 292460 size: 27834
ret: 0 st: 0 flags:1 dts: 0.971000 pts: 0.971000 pos: 292466 size: 27834
ret: 0 st: 0 flags:0 ts: 0.788000
ret: 0 st: 0 flags:1 dts: 0.971000 pts: 0.971000 pos: 292460 size: 27834
ret: 0 st: 0 flags:1 dts: 0.971000 pts: 0.971000 pos: 292466 size: 27834
ret: 0 st: 0 flags:1 ts:-0.317000
ret: 0 st: 0 flags:1 dts: 0.011000 pts: 0.011000 pos: 1034 size: 27837
ret: 0 st: 0 flags:1 dts: 0.011000 pts: 0.011000 pos: 1040 size: 27837
ret:-1 st: 1 flags:0 ts: 2.577000
ret: 0 st: 1 flags:1 ts: 1.471000
ret: 0 st: 1 flags:1 dts: 0.993000 pts: 0.993000 pos: 320301 size: 209
ret: 0 st: 1 flags:1 dts: 0.993000 pts: 0.993000 pos: 320307 size: 209
ret: 0 st:-1 flags:0 ts: 0.365002
ret: 0 st: 0 flags:1 dts: 0.491000 pts: 0.491000 pos: 147007 size: 27925
ret: 0 st: 0 flags:1 dts: 0.491000 pts: 0.491000 pos: 147013 size: 27925
ret: 0 st:-1 flags:1 ts:-0.740831
ret: 0 st: 0 flags:1 dts: 0.011000 pts: 0.011000 pos: 1034 size: 27837
ret: 0 st: 0 flags:1 dts: 0.011000 pts: 0.011000 pos: 1040 size: 27837
ret:-1 st: 0 flags:0 ts: 2.153000
ret: 0 st: 0 flags:1 ts: 1.048000
ret: 0 st: 0 flags:1 dts: 0.971000 pts: 0.971000 pos: 292460 size: 27834
ret: 0 st: 0 flags:1 dts: 0.971000 pts: 0.971000 pos: 292466 size: 27834
ret: 0 st: 1 flags:0 ts:-0.058000
ret: 0 st: 1 flags:1 dts: 0.000000 pts: 0.000000 pos: 818 size: 208
ret: 0 st: 1 flags:1 dts: 0.000000 pts: 0.000000 pos: 824 size: 208
ret: 0 st: 1 flags:1 ts: 2.836000
ret: 0 st: 1 flags:1 dts: 0.993000 pts: 0.993000 pos: 320301 size: 209
ret: 0 st: 1 flags:1 dts: 0.993000 pts: 0.993000 pos: 320307 size: 209
ret:-1 st:-1 flags:0 ts: 1.730004
ret: 0 st:-1 flags:1 ts: 0.624171
ret: 0 st: 0 flags:1 dts: 0.491000 pts: 0.491000 pos: 147007 size: 27925
ret: 0 st: 0 flags:1 dts: 0.491000 pts: 0.491000 pos: 147013 size: 27925
ret: 0 st: 0 flags:0 ts:-0.482000
ret: 0 st: 0 flags:1 dts: 0.011000 pts: 0.011000 pos: 1034 size: 27837
ret: 0 st: 0 flags:1 dts: 0.011000 pts: 0.011000 pos: 1040 size: 27837
ret: 0 st: 0 flags:1 ts: 2.413000
ret: 0 st: 0 flags:1 dts: 0.971000 pts: 0.971000 pos: 292460 size: 27834
ret: 0 st: 0 flags:1 dts: 0.971000 pts: 0.971000 pos: 292466 size: 27834
ret:-1 st: 1 flags:0 ts: 1.307000
ret: 0 st: 1 flags:1 ts: 0.201000
ret: 0 st: 1 flags:1 dts: 0.000000 pts: 0.000000 pos: 818 size: 208
ret: 0 st: 1 flags:1 dts: 0.000000 pts: 0.000000 pos: 824 size: 208
ret: 0 st:-1 flags:0 ts:-0.904994
ret: 0 st: 0 flags:1 dts: 0.011000 pts: 0.011000 pos: 1034 size: 27837
ret: 0 st: 0 flags:1 dts: 0.011000 pts: 0.011000 pos: 1040 size: 27837
ret: 0 st:-1 flags:1 ts: 1.989173
ret: 0 st: 0 flags:1 dts: 0.971000 pts: 0.971000 pos: 292460 size: 27834
ret: 0 st: 0 flags:1 dts: 0.971000 pts: 0.971000 pos: 292466 size: 27834
ret: 0 st: 0 flags:0 ts: 0.883000
ret: 0 st: 0 flags:1 dts: 0.971000 pts: 0.971000 pos: 292460 size: 27834
ret: 0 st: 0 flags:1 dts: 0.971000 pts: 0.971000 pos: 292466 size: 27834
ret: 0 st: 0 flags:1 ts:-0.222000
ret: 0 st: 0 flags:1 dts: 0.011000 pts: 0.011000 pos: 1034 size: 27837
ret: 0 st: 0 flags:1 dts: 0.011000 pts: 0.011000 pos: 1040 size: 27837
ret:-1 st: 1 flags:0 ts: 2.672000
ret: 0 st: 1 flags:1 ts: 1.566000
ret: 0 st: 1 flags:1 dts: 0.993000 pts: 0.993000 pos: 320301 size: 209
ret: 0 st: 1 flags:1 dts: 0.993000 pts: 0.993000 pos: 320307 size: 209
ret: 0 st:-1 flags:0 ts: 0.460008
ret: 0 st: 0 flags:1 dts: 0.491000 pts: 0.491000 pos: 147007 size: 27925
ret: 0 st: 0 flags:1 dts: 0.491000 pts: 0.491000 pos: 147013 size: 27925
ret: 0 st:-1 flags:1 ts:-0.645825
ret: 0 st: 0 flags:1 dts: 0.011000 pts: 0.011000 pos: 1034 size: 27837
ret: 0 st: 0 flags:1 dts: 0.011000 pts: 0.011000 pos: 1040 size: 27837

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