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| author | Andreas Rheinhardt <andreas.rheinhardt@outlook.com> | 2021-08-04 16:52:07 +0200 |
|---|---|---|
| committer | Andreas Rheinhardt <andreas.rheinhardt@outlook.com> | 2021-08-25 23:01:54 +0200 |
| commit | 45bfe8b838275235412777dd430206d9a24eb3ee (patch) | |
| tree | d35a1ee7436b0259fd26d32bc80482c0a9f2927e /libavformat/av1dec.c | |
| parent | 530ac6aa305aeda631c77f8a17e96c14c7ab1a1c (diff) | |
| download | ffmpeg-45bfe8b838275235412777dd430206d9a24eb3ee.tar.gz | |
avformat/avio: Move internal AVIOContext fields to avio_internal.h
Currently AVIOContext's private fields are all over AVIOContext.
This commit moves them into a new structure in avio_internal.h instead.
Said structure contains the public AVIOContext as its first element
in order to avoid having to allocate a separate AVIOContextInternal
which is costly for those use cases where one just wants to access
an already existing buffer via the AVIOContext-API.
For these cases ffio_init_context() can't fail and always returned zero,
which was typically not checked. Therefore it has been made to not
return anything.
Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@outlook.com>
Diffstat (limited to 'libavformat/av1dec.c')
| -rw-r--r-- | libavformat/av1dec.c | 21 |
1 files changed, 11 insertions, 10 deletions
diff --git a/libavformat/av1dec.c b/libavformat/av1dec.c index 37f21483b9..e994312253 100644 --- a/libavformat/av1dec.c +++ b/libavformat/av1dec.c @@ -157,32 +157,33 @@ static int read_obu(const uint8_t *buf, int size, int64_t *obu_size, int *type) static int annexb_probe(const AVProbeData *p) { - AVIOContext pb; + FFIOContext ctx; + AVIOContext *const pb = &ctx.pub; int64_t obu_size; uint32_t temporal_unit_size, frame_unit_size, obu_unit_size; int seq = 0; int ret, type, cnt = 0; - ffio_init_context(&pb, p->buf, p->buf_size, 0, + ffio_init_context(&ctx, p->buf, p->buf_size, 0, NULL, NULL, NULL, NULL); - ret = leb(&pb, &temporal_unit_size); + ret = leb(pb, &temporal_unit_size); if (ret < 0) return 0; cnt += ret; - ret = leb(&pb, &frame_unit_size); + ret = leb(pb, &frame_unit_size); if (ret < 0 || ((int64_t)frame_unit_size + ret) > temporal_unit_size) return 0; cnt += ret; - ret = leb(&pb, &obu_unit_size); + ret = leb(pb, &obu_unit_size); if (ret < 0 || ((int64_t)obu_unit_size + ret) >= frame_unit_size) return 0; cnt += ret; frame_unit_size -= obu_unit_size + ret; - avio_skip(&pb, obu_unit_size); - if (pb.eof_reached || pb.error) + avio_skip(pb, obu_unit_size); + if (pb->eof_reached || pb->error) return 0; // Check that the first OBU is a Temporal Delimiter. @@ -192,13 +193,13 @@ static int annexb_probe(const AVProbeData *p) cnt += obu_unit_size; do { - ret = leb(&pb, &obu_unit_size); + ret = leb(pb, &obu_unit_size); if (ret < 0 || ((int64_t)obu_unit_size + ret) > frame_unit_size) return 0; cnt += ret; - avio_skip(&pb, obu_unit_size); - if (pb.eof_reached || pb.error) + avio_skip(pb, obu_unit_size); + if (pb->eof_reached || pb->error) return 0; ret = read_obu(p->buf + cnt, FFMIN(p->buf_size - cnt, obu_unit_size), &obu_size, &type); |