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| author | Andreas Rheinhardt <andreas.rheinhardt@gmail.com> | 2019-05-17 00:30:00 +0200 |
|---|---|---|
| committer | James Almer <jamrial@gmail.com> | 2019-06-23 20:11:24 -0300 |
| commit | bc3306fd5b272730bb4bc2c571d575fed75a1ce4 (patch) | |
| tree | 0ab17370ffa42fdecf183161a83c4c65989403c0 /libavformat/matroskadec.c | |
| parent | c8232e50074f6f9f9b0674d0a5433f49d73a4e50 (diff) | |
| download | ffmpeg-bc3306fd5b272730bb4bc2c571d575fed75a1ce4.tar.gz | |
avformat/matroskadec: Treat SimpleBlock as EBML_BIN
Up until now, the SimpleBlock was treated specially: It basically had
its own EBML category and it was also included in the BlockGroup EBML
syntax (although a SimpleBlock must not exist in a BlockGroup according
to the Matroska specifications). The latter fact also meant that
a MatroskaBlock's buffer was always unreferenced twice.
This has been changed: The type of a SimpleBlock is now an EBML_BIN.
The only way in which SimpleBlocks are still different is that they
share their associated structure with another unit (namely BlockGroup).
This is also used to unref the block: It is always unreferenced via the
BlockGroup syntax.
Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@gmail.com>
Diffstat (limited to 'libavformat/matroskadec.c')
| -rw-r--r-- | libavformat/matroskadec.c | 8 |
1 files changed, 2 insertions, 6 deletions
diff --git a/libavformat/matroskadec.c b/libavformat/matroskadec.c index c449edf7dd..09665fb680 100644 --- a/libavformat/matroskadec.c +++ b/libavformat/matroskadec.c @@ -79,7 +79,6 @@ typedef enum { EBML_BIN, EBML_NEST, EBML_LEVEL1, - EBML_PASS, EBML_STOP, EBML_SINT, EBML_TYPE_COUNT @@ -694,7 +693,6 @@ static const EbmlSyntax matroska_blockadditions[] = { static const EbmlSyntax matroska_blockgroup[] = { { MATROSKA_ID_BLOCK, EBML_BIN, 0, offsetof(MatroskaBlock, bin) }, { MATROSKA_ID_BLOCKADDITIONS, EBML_NEST, 0, 0, { .n = matroska_blockadditions} }, - { MATROSKA_ID_SIMPLEBLOCK, EBML_BIN, 0, offsetof(MatroskaBlock, bin) }, { MATROSKA_ID_BLOCKDURATION, EBML_UINT, 0, offsetof(MatroskaBlock, duration) }, { MATROSKA_ID_DISCARDPADDING, EBML_SINT, 0, offsetof(MatroskaBlock, discard_padding) }, { MATROSKA_ID_BLOCKREFERENCE, EBML_SINT, 0, offsetof(MatroskaBlock, reference), { .i = INT64_MIN } }, @@ -706,7 +704,7 @@ static const EbmlSyntax matroska_blockgroup[] = { static const EbmlSyntax matroska_cluster_parsing[] = { { MATROSKA_ID_CLUSTERTIMECODE, EBML_UINT, 0, offsetof(MatroskaCluster, timecode) }, { MATROSKA_ID_BLOCKGROUP, EBML_NEST, 0, 0, { .n = matroska_blockgroup } }, - { MATROSKA_ID_SIMPLEBLOCK, EBML_PASS, 0, 0, { .n = matroska_blockgroup } }, + { MATROSKA_ID_SIMPLEBLOCK, EBML_BIN, 0, offsetof(MatroskaBlock, bin) }, { MATROSKA_ID_CLUSTERPOSITION, EBML_NONE }, { MATROSKA_ID_CLUSTERPREVSIZE, EBML_NONE }, { MATROSKA_ID_INFO, EBML_NONE }, @@ -1161,7 +1159,7 @@ static int ebml_parse_elem(MatroskaDemuxContext *matroska, list->nb_elem++; } - if (syntax->type != EBML_PASS && syntax->type != EBML_STOP) { + if (syntax->type != EBML_STOP) { matroska->current_id = 0; if ((res = ebml_read_length(matroska, pb, &length)) < 0) return res; @@ -1235,8 +1233,6 @@ static int ebml_parse_elem(MatroskaDemuxContext *matroska, level1_elem->parsed = 1; } return ebml_parse_nest(matroska, syntax->def.n, data); - case EBML_PASS: - return ebml_parse_id(matroska, syntax->def.n, id, data); case EBML_STOP: return 1; default: |