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Commit Graph

10 Commits

Author SHA1 Message Date
Andreas Rheinhardt
e6142f2695 avcodec/interplayacm: Make decoder init-threadsafe
Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@gmail.com>
2021-05-02 02:54:51 +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
Michael Niedermayer
10eabb8e40 avcodec/interplayacm: Fix overflow of last unused value
Fixes: signed integer overflow: -2147450880 - 65535 cannot be represented in type 'int'
Fixes: 18393/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_INTERPLAY_ACM_fuzzer-5667520110919680

Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
2019-11-09 18:03:38 +01:00
Michael Niedermayer
3948d80842 avcodec/interplayacm: Fix integer overflows in juggle()
Fixes: signed integer overflow: -760459023 + -1520918047 cannot be represented in type 'int'
Fixes: 17994/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_INTERPLAY_ACM_fuzzer-5647123042795520

Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
2019-10-25 00:22:33 +02:00
Paul B Mahol
0d37823c83 avcodec/interplayacm: decoder supports init_cleanup capability 2018-09-08 20:44:22 +02:00
Andreas Cadhalpun
60178e78f2 interplayacm: increase bitstream buffer size by AV_INPUT_BUFFER_PADDING_SIZE
This fixes out-of-bounds reads by the bitstream reader.

Reviewed-by: Paul B Mahol <onemda@gmail.com>
Signed-off-by: Andreas Cadhalpun <Andreas.Cadhalpun@googlemail.com>
2016-11-01 00:39:06 +01:00
Andreas Cadhalpun
5540d6c134 interplayacm: validate number of channels
The number of channels is used as divisor in decode_frame, so it must
not be zero to avoid SIGFPE crashes.

Reviewed-by: Paul B Mahol <onemda@gmail.com>
Signed-off-by: Andreas Cadhalpun <Andreas.Cadhalpun@googlemail.com>
2016-10-30 22:38:23 +01:00
Andreas Cadhalpun
14e4e26559 interplayacm: check for too large b
This fixes out-of-bounds reads.

Reviewed-by: Paul B Mahol <onemda@gmail.com>
Signed-off-by: Andreas Cadhalpun <Andreas.Cadhalpun@googlemail.com>
2016-10-30 22:38:03 +01:00
Clément Bœsch
f755aa5ebd lavc: move 2 more BITSTREAM_READER_LE definitions
This was mentioned to be in ae753dbd0d but
actually wasn't.
2016-06-29 11:41:12 +02:00
Paul B Mahol
c89e075d5a avcodec: add Interplay ACM decoder
Signed-off-by: Paul B Mahol <onemda@gmail.com>
2015-11-03 12:01:27 +01:00