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| author |   Nicolas Dufresne <nicolas.dufresne@collabora.com> | 2022-04-26 14:57:30 +0200 |
|---|---|---|
| committer |   Mauro Carvalho Chehab <mchehab@kernel.org> | 2022-05-13 14:59:54 +0200 |
| commit | 4a18d21649f4f34e79a16c635e5df48cebb82e1f (patch) | |
| tree | ddec9ce2e8bc509f47c5fb288ce1f3259b45536b /drivers/media | |
| parent | media: v4l2-mem2mem: Trace on implicit un-hold (diff) | |
| download | linux-dev-4a18d21649f4f34e79a16c635e5df48cebb82e1f.tar.xz linux-dev-4a18d21649f4f34e79a16c635e5df48cebb82e1f.zip | |
media: h264: Avoid wrapping long_term_frame_idx
For long term references, frame_num is set to long_term_frame_idx which
does not require wrapping. This is fixed by observation, no directly
related issue have been found yet.
Signed-off-by: Nicolas Dufresne <nicolas.dufresne@collabora.com>
Reviewed-by: Sebastian Fricke <sebastian.fricke@collabora.com>
Reviewed-by: Ezequiel Garcia <ezequiel@vanguardiasur.com.ar>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab@kernel.org>
Diffstat (limited to 'drivers/media')
| -rw-r--r-- | drivers/media/v4l2-core/v4l2-h264.c | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/drivers/media/v4l2-core/v4l2-h264.c b/drivers/media/v4l2-core/v4l2-h264.c index 5633a242520a..ac47519a9fbe 100644 --- a/drivers/media/v4l2-core/v4l2-h264.c +++ b/drivers/media/v4l2-core/v4l2-h264.c @@ -57,8 +57,10 @@ v4l2_h264_init_reflist_builder(struct v4l2_h264_reflist_builder *b, * '8.2.4.1 Decoding process for picture numbers' of the spec. * TODO: This logic will have to be adjusted when we start * supporting interlaced content. + * For long term references, frame_num is set to + * long_term_frame_idx which requires no wrapping. */ - if (dpb[i].frame_num > cur_frame_num) + if (!b->refs[i].longterm && dpb[i].frame_num > cur_frame_num) b->refs[i].frame_num = (int)dpb[i].frame_num - max_frame_num; else |