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14 Commits

Author SHA1 Message Date
Andreas Rheinhardt
57b5ec6ba7 avcodec/avcodec: Stop including bsf.h in avcodec.h 
Also include bsf.h directly wherever it is used.

Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@outlook.com>
 2021-07-22 11:14:16 +02:00
Andreas Rheinhardt
1500b7dfa5 avformat/av1dec: Simplify cleanup after read_header failure 
by setting the FF_FMT_INIT_CLEANUP flag.

Reviewed-by: James Almer <jamrial@gmail.com>
Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@outlook.com>
 2021-07-07 21:40:13 +02:00
James Almer
b9c5fdf602 avformat: move AVStream.{parser,need_parsing} to AVStreamInternal 
Those are private fields, no reason to have them exposed in a public
header.

Signed-off-by: James Almer <jamrial@gmail.com>
 2021-05-07 09:27:21 -03:00
Andreas Rheinhardt
bc70684e74 avformat: Constify all muxer/demuxers 
This is possible now that the next-API is gone.

Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@outlook.com>
Signed-off-by: James Almer <jamrial@gmail.com>
 2021-04-27 11:48:06 -03:00
Michael Niedermayer
76b6c46a81 avformat/av1dec: check size before addition in probing 
Fixes: signed integer overflow: 175 + 2147483571 cannot be represented in type 'int'
Fixes: 26833/clusterfuzz-testcase-minimized-ffmpeg_dem_IMAGE2_fuzzer-5969501214212096

Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
 2020-12-06 21:00:03 +01:00
Michael Niedermayer
2be51d14f2 avformat/av1dec: Fix padding in obu_get_packet() 
Fixes: stack buffer overflow (read)
Fixes: 26369/clusterfuzz-testcase-minimized-ffmpeg_dem_VIVIDAS_fuzzer-5721057325219840

Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
 2020-10-20 15:33:13 +02:00
James Almer
b6e92d928f avformat/av1dec: don't update temporal_unit_size after it's no longer used 
Signed-off-by: James Almer <jamrial@gmail.com>
 2020-08-15 23:31:41 -03:00
James Almer
a72d5290c5 avformat/av1dec: inline obu_read_data() and obu_prefetch() into obu_get_packet() 
They don't really help making the demuxer more readable.

Reviewed-by: Guangxin Xu <oddstone@gmail.com>
Signed-off-by: James Almer <jamrial@gmail.com>
 2020-08-15 13:01:30 -03:00
James Almer
a762fd2c1b avformat/av1dec: fix return value on some code paths 
If avio_read() returns a value of bytes read that's lower than the
expected, return an error instead. And when there are zero bytes in
the prefetch buffer, return 0 in order for the frame merge bsf to
drain all potentially buffered packets.

Missed by mistake when amending and committing 9a7bdb6d71.

Signed-off-by: James Almer <jamrial@gmail.com>
 2020-08-14 00:14:37 -03:00
James Almer
3105e97050 avformat/av1dec: add missing preprocessor wrappers to annexb and obu demuxers 
Ensure the modules are compiled only if enabled.

Signed-off-by: James Almer <jamrial@gmail.com>
 2020-08-14 00:02:29 -03:00
Xu Guangxin
9a7bdb6d71 avformat/av1dec: add low-overhead bitstream format 
It's defined in Section 5.2, used by netflix.

Signed-off-by: James Almer <jamrial@gmail.com>
 2020-08-14 00:02:13 -03:00
James Almer
81d54531f7 avformat/av1dec: simplify annexb_probe() 
Signed-off-by: James Almer <jamrial@gmail.com>
 2019-11-16 15:56:36 -03:00
Andreas Rheinhardt
f01f9f1793 avformat/av1dec: Redo flushing of bsf 
The current approach has two different calls to av_bsf_send_packet():
A normal one, sending a packet; and an extraordinary one just for
flushing. These can be unified into one by making use of the newly
documented fact that av_bsf_send_packet() allows to signal flushing via
empty packets (i.e. packets without data and side-data).

This also fixes CID 1455685 which resulted from the fact that the call
for flushing was not checked given that it couldn't fail.

Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@gmail.com>
Signed-off-by: James Almer <jamrial@gmail.com>
 2019-11-14 12:02:51 -03:00
James Almer
cc61466058 avformat: add an AV1 Annex B demuxer 
Signed-off-by: James Almer <jamrial@gmail.com>
 2019-11-12 22:21:51 -03:00