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radeon/uvd: fix MPEG2/4 ref frame index limit 

Otherwise the first few frames have an incorrect reference index.

Signed-off-by: Christian König <christian.koenig@amd.com>
This commit is contained in:
Christian König 2013-08-28 18:55:56 +02:00
parent 57684d52e9
commit aebd065a64
1 changed files with 2 additions and 2 deletions
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4
src/gallium/drivers/radeon/radeon_uvd.c
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@ -493,8 +493,8 @@ uint8_t pquant
/* extract the frame number from a referenced video buffer */
static uint32_t get_ref_pic_idx(struct ruvd_decoder *dec, struct pipe_video_buffer *ref)
{
uint32_t min = dec->frame_number - NUM_MPEG2_REFS;
uint32_t max = dec->frame_number - 1;
uint32_t min = MAX2(dec->frame_number, NUM_MPEG2_REFS) - NUM_MPEG2_REFS;
uint32_t max = MAX2(dec->frame_number, 1) - 1;
uintptr_t frame;
/* seems to be the most sane fallback */