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Commit Graph

19 Commits

Author SHA1 Message Date
Michael Niedermayer
a2e4879432 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>
2020-03-06 00:58:31 +01:00
James Almer
6d37ca8a4e avcodec/cbs_av1: add missing value constrains to point_y_value, point_cb_value and point_cr_value
If i is greater than 0, it is a requirement of bitstream conformance that point_y_value[ i ] is greater than point_y_value[ i - 1 ].
If i is greater than 0, it is a requirement of bitstream conformance that point_cb_value[ i ] is greater than point_cb_value[ i - 1 ].
If i is greater than 0, it is a requirement of bitstream conformance that point_cr_value[ i ] is greater than point_cr_value[ i - 1 ].

Reviewed-by: Mark Thompson <sw@jkqxz.net>
Signed-off-by: James Almer <jamrial@gmail.com>
2020-02-13 20:23:45 -03:00
Andreas Rheinhardt
1ab302da6e avcodec/cbs_av1_syntax_template: Remove unused variable
Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@gmail.com>
Signed-off-by: James Almer <jamrial@gmail.com>
2020-01-24 20:03:47 -03:00
James Almer
8887991a31 avcodec/cbs_av1: add missing valid range of values for num_cb_points and num_cr_points
It is a requirement of bitstream conformance that num_cr_points is less than or equal to 10.
It is a requirement of bitstream conformance that num_cb_points is less than or equal to 10.

Signed-off-by: James Almer <jamrial@gmail.com>
2019-12-19 01:04:10 -03:00
Michael Niedermayer
bbe27890ff 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 a23dd33606

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>
2019-12-13 23:52:19 +01:00
Fei Wang
5fc3099caf avcodec/cbs_av1: rename enable_intraintra_compound flag
rename enable_intraintra_compound to enable_interintra_compound,
which keep same as AV1 sepc(v1.0.0-errata1).

Signed-off-by: Fei Wang <fei.w.wang@intel.com>
Signed-off-by: James Almer <jamrial@gmail.com>
2019-12-11 16:23:38 -03:00
James Almer
553c1431ac Revert "avcodec/cbs_av1_syntax_template: Check ref_frame_idx before use"
This reverts commit 8174e5c77d.

It's no longer needed after the previous commit.

Signed-off-by: James Almer <jamrial@gmail.com>
2019-12-01 16:53:11 -03:00
James Almer
eced91afa5 avcodec/cbs_av1: implement missing set_frame_refs() function
Defined in Section 7.8

This finishes implementing support for frames using
frame_refs_short_signaling.

Signed-off-by: James Almer <jamrial@gmail.com>
2019-12-01 16:53:11 -03:00
James Almer
2703068110 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>
2019-11-16 15:56:36 -03:00
Michael Niedermayer
8174e5c77d 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>
2019-08-05 17:53:14 +02:00
James Almer
67f9d3f461 avcodec/cbs_av1: add missing value range constrains to timecode Metadata OBU
Also infer the value time_offset_length as 0 when it's not present.

Reviewed-by: Mark Thompson <sw@jkqxz.net>
Signed-off-by: James Almer <jamrial@gmail.com>
2019-04-28 19:48:45 -03:00
James Almer
cfe220332a avcodec/cbs_av1: add support for Scalability Metadata
Reviewed-by: Mark Thompson <sw@jkqxz.net>
Signed-off-by: James Almer <jamrial@gmail.com>
2019-04-16 19:23:17 -03:00
James Almer
1f260d7285 avcodec/cbs_av1: add support for Padding OBUs
Based on itut_t35 Matadata OBU parsing code.

Reviewed-by: Mark Thompson <sw@jkqxz.net>
Signed-off-by: James Almer <jamrial@gmail.com>
2019-04-14 14:51:51 -03:00
James Almer
62074b8f85 avcodec/cbs_av1: add a function to strip trailing zeroes from a buffer size
Factor it out from cbs_av1_read_metadata_itut_t35()

Reviewed-by: Mark Thompson <sw@jkqxz.net>
Signed-off-by: James Almer <jamrial@gmail.com>
2019-04-14 14:51:51 -03:00
James Almer
40490b3a63 avcodec/cbs_av1: fix range of values for Mastering Display Color Volume Metadata OBUs
Signed-off-by: James Almer <jamrial@gmail.com>
2019-03-25 11:26:26 -03:00
James Almer
064f9505f4 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>
2018-12-20 17:57:10 -03:00
Mark Thompson
f5894178fb cbs_av1: Support redundant frame headers 2018-11-05 23:00:59 +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