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mirror of https://github.com/FFmpeg/FFmpeg.git synced 2025-03-28 12:32:17 +02:00

9 Commits

Author SHA1 Message Date
Michael Niedermayer
f94ca27470 avcodec/cbs_av1_syntax_template: Set seen_frame_header only after successfull uncompressed_header()
Fixes: assertion failure
Fixes: 19301/clusterfuzz-testcase-minimized-ffmpeg_BSF_AV1_FRAME_MERGE_fuzzer-5743212006473728

Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
(cherry picked from commit a2e4879432b9de6aa899b85aebbc0eb6a8b5f37f)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
2020-07-03 12:10:23 +02:00
James Almer
8ad03481f3 avcodec/cbs_av1: fix reading reference order hint in skip_mode_params()
Reviewed-by: Ronald S. Bultje <rsbultje@gmail.com>
Signed-off-by: James Almer <jamrial@gmail.com>
(cherry picked from commit 2703068110dce2c145a2d3a0f380f8e0de79b632)
2020-01-06 11:51:23 -03:00
Michael Niedermayer
627d5ff890 avcodec/cbs_av1_syntax_template: Check num_y_points
"It is a requirement of bitstream conformance that num_y_points is less than or equal to 14."

Fixes: index 24 out of bounds for type 'uint8_t [24]'
Fixes: 19282/clusterfuzz-testcase-minimized-ffmpeg_BSF_AV1_FRAME_MERGE_fuzzer-5747424845103104

Note, also needs a23dd33606d5

Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg
Reviewed-by: jamrial
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
(cherry picked from commit bbe27890ff7e31e74d024a17123cb073720f2486)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
2020-01-06 15:03:15 +01:00
Michael Niedermayer
3f57ece8e6 avcodec/cbs_av1_syntax_template: Check ref_frame_idx before use
Fixes: index -1 out of bounds for type 'AV1ReferenceFrameState [8]'
Fixes: 16079/clusterfuzz-testcase-minimized-ffmpeg_DEMUXER_fuzzer-5758807440883712

Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg
Reviewed-by: James Almer <jamrial@gmail.com>
See: [FFmpeg-devel] [PATCH 05/13] avcodec/cbs_av1_syntax_template: Check ref_frame_idx before use
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
(cherry picked from commit 8174e5c77d8a94b57b6b1bcbb90728cf8b08ab6b)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
2020-01-06 11:30:42 +01:00
James Almer
6972b353b4 avcodec/cbs_av1: fix range of values for Mastering Display Color Volume Metadata OBUs
Signed-off-by: James Almer <jamrial@gmail.com>
(cherry picked from commit 40490b3a63368bdc2403bf7415b214e6dc0a9a3a)
2019-03-25 19:59:28 -03:00
James Almer
5356e61001 avcodec/cbs_av1: fix parsing delta_frame_id_minus1
delta_frame_id_minus1 is not a single value in the bitstream, and can
store values up to 17 bits wide.

Fixes parsing files with frame ids.

Reviewed-by: Mark Thompson <sw@jkqxz.net>
Signed-off-by: James Almer <jamrial@gmail.com>
(cherry picked from commit 064f9505f49816650516c7afe93e43d8f547891a)
2018-12-20 18:29:42 -03:00
Mark Thompson
10506de9ad cbs_av1: Support redundant frame headers
(cherry picked from commit f5894178fb8063ec17c61c04df96a70607ca2daa)
2018-11-05 23:11:03 +00:00
James Almer
99ef8b8afd avcodec/cbs_av1: fix parsing frame_size_with_refs
found_ref is not a single value in the bitstream. Fixes parsing files with
frame size changes.

Based on code from cbs_vp9.

Reviewed-by: Mark Thompson <sw@jkqxz.net>
Signed-off-by: James Almer <jamrial@gmail.com>
2018-10-27 16:06:36 -03:00
Mark Thompson
c8c81ac502 lavc: Add coded bitstream read/write support for AV1 2018-09-26 23:27:53 +01:00