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8 commits

Author SHA1 Message Date
Michael Niedermayer
70b26b693e
avcodec/vmixdec: Check shift before use 
Fixes: shift exponent 32 is too large for 32-bit type 'unsigned int'
Fixes: 65909/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_VMIX_fuzzer-519459745831321

Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
 2024-03-25 21:41:26 +01:00
Michael Niedermayer
d897f82cf8
avcodec/vmixdec: Fix signed integer overflow in dc 
Fixes: signed integer overflow: 2147483181 + 1024 cannot be represented in type 'int'
Fixes: 61117/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_VMIX_fuzzer-5387692433866752

Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
 2023-09-25 21:41:35 +02:00
Paul B Mahol
5acc3c4cff avcodec/vmixdec: improve quality factors 2023-09-17 12:55:56 +02:00
Paul B Mahol
00a837c70c avcodec/vmixdec: add support for custom first byte 2023-09-14 14:54:40 +02:00
Paul B Mahol
86bd0f08d3 avcodec/vmixdec: fix inputs with more than 255 slices 2023-09-11 01:14:50 +02:00
Michael Niedermayer
d5cc9d8dd9
avcodec/vmixdec: Check for end of input in decode_dcac() 
Fixes: Timeout
Fixes: 59952/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_VMIX_fuzzer-6718213736759296

Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
 2023-09-08 01:32:30 +02:00
Michael Niedermayer
574f3aaeff
avcodec/vmixdec: Fix several integer anomalies 
Fixes: vmixdec.c:132:34: runtime error: signed integer overflow: -2147483648 * 1856 cannot be represented in type 'int'
Fixes: vmixdec.c:119:20: runtime error: signed integer overflow: -1256 + -2147483648 cannot be represented in type 'int'
Fixes: vmixdec.c:137:36: runtime error: signed integer overflow: 2147483416 * 16 cannot be represented in type 'int'
Fixes: 59843/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_VMIX_fuzzer-4857434624360448

Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
 2023-07-25 23:17:28 +02:00
Paul B Mahol
2d59ca0a66 avcodec: add VMX1 decoder 2023-06-12 23:43:05 +02:00