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| author | Linjie Fu <linjie.fu@intel.com> | 2020-03-17 22:53:58 +0800 |
|---|---|---|
| committer | Ronald S. Bultje <rsbultje@gmail.com> | 2020-05-05 08:22:28 -0400 |
| commit | 9473268cfb580dccd3f1f3be338cd22661ef791e (patch) | |
| tree | 0c155f390e2cfb4b72dc5400781f9d0b56616086 /libavcodec/arm/vorbisdsp_init_arm.c | |
| parent | 486ed509bcf245bf25aac19f2eead04ba684c837 (diff) | |
| download | ffmpeg-9473268cfb580dccd3f1f3be338cd22661ef791e.tar.gz | |
lavc/vp9: fix reference frame dimensions check for SINGLE_REFERENCE mode
With the description in frame size with refs semantics (SPEC 7.2.5),
it is a requirement of bitstream conformance that for at least one
reference frame has the valid dimensions.
Modify the check to make sure the decoder works well in SINGLE_REFERENCE
mode that not all reference frames have valid dimensions.
Check and error out if invalid reference frame is used in inter_recon.
One of the failure case is a 480x272 inter frame (SINGLE_REFERENCE mode)
with following reference pool:
0. 960x544 LAST valid
1. 1920x1088 GOLDEN invalid, but not used in single reference mode
2. 1920x1088 ALTREF invalid, but not used in single reference mode
3~7 ... Unused
Identical logic in libvpx:
<https://github.com/webmproject/libvpx/blob/master/vp9/decoder/vp9_decodeframe.c#L736>
Signed-off-by: Linjie Fu <linjie.fu@intel.com>
Signed-off-by: Ronald S. Bultje <rsbultje@gmail.com>
Diffstat (limited to 'libavcodec/arm/vorbisdsp_init_arm.c')
0 files changed, 0 insertions, 0 deletions