1
0
mirror of https://github.com/FFmpeg/FFmpeg.git synced 2024-12-23 12:43:46 +02:00
Commit Graph

8 Commits

Author SHA1 Message Date
Andreas Rheinhardt
02220b88fc avcodec/thread: Don't use ThreadFrame when unnecessary
The majority of frame-threaded decoders (mainly the intra-only)
need exactly one part of ThreadFrame: The AVFrame. They don't
need the owners nor the progress, yet they had to use it because
ff_thread_(get|release)_buffer() requires it.

This commit changes this and makes these functions work with ordinary
AVFrames; the decoders that need the extra fields for progress
use ff_thread_(get|release)_ext_buffer() which work exactly
as ff_thread_(get|release)_buffer() used to do.

This also avoids some unnecessary allocations of progress AVBuffers,
namely for H.264 and HEVC film grain frames: These frames are not
used for synchronization and therefore don't need a ThreadFrame.

Also move the ThreadFrame structure as well as ff_thread_ref_frame()
to threadframe.h, the header for frame-threaded decoders with
inter-frame dependencies.

Reviewed-by: Anton Khirnov <anton@khirnov.net>
Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@outlook.com>
2022-02-09 17:22:35 +01:00
Andreas Rheinhardt
2934a4b9a5 Remove unnecessary avassert.h inclusions
Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@outlook.com>
2021-07-22 15:02:30 +02:00
Andreas Rheinhardt
a247ac640d avcodec: Constify AVCodecs
Given that the AVCodec.next pointer has now been removed, most of the
AVCodecs are not modified at all any more and can therefore be made
const (as this patch does); the only exceptions are the very few codecs
for external libraries that have a init_static_data callback.

Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@gmail.com>
Signed-off-by: James Almer <jamrial@gmail.com>
2021-04-27 10:43:15 -03:00
Andreas Rheinhardt
362fdc2657 avcodec/photocd: Mark decoder as init-threadsafe
Reviewed-by: Paul B Mahol <onemda@gmail.com>
Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@gmail.com>
2020-11-29 00:01:53 +01:00
Michael Niedermayer
34df97b088 avcodec/photocd: Use ff_set_dimensions()
Fixes: out of memory
Fixes: 25588/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_PHOTOCD_fuzzer-6612945080156160

Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
2020-10-18 20:42:21 +02:00
Andreas Rheinhardt
a902c24994 avcodec/photocd: Simplify parsing Huffman tables a bit
Reviewed-by: Paul B Mahol <onemda@gmail.com>
Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@gmail.com>
2020-09-26 20:38:30 +02:00
Andreas Rheinhardt
38ee8f80ea avcodec/photocd: Remove set-but-unused variables
Reviewed-by: Paul B Mahol <onemda@gmail.com>
Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@gmail.com>
2020-09-04 22:05:31 +02:00
Paul B Mahol
c8e38950e3 avcodec: add PhotoCD decoder 2020-09-04 16:01:53 +02:00