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| author | Clément Bœsch <ubitux@gmail.com> | 2013-03-22 09:54:06 +0100 |
|---|---|---|
| committer | Clément Bœsch <ubitux@gmail.com> | 2013-03-22 23:09:08 +0100 |
| commit | 89b4e758d3d0b1170297281e567cb12cc718e234 (patch) | |
| tree | bd1e0837073c3d7bd192d7b8c17480687003774f | |
| parent | 859f7da543bfade2dd00307c2bb361e0213899f5 (diff) | |
| download | ffmpeg-89b4e758d3d0b1170297281e567cb12cc718e234.tar.gz | |
lavfi/blend: always peek the first frame of each queue.
Before the change, filter_frame() always waited for 2 samples in the
bottom frames queue. This notably fixes commands such as
./ffplay tests/lena.pnm -vf split,blend=c0_mode=addition
| -rw-r--r-- | libavfilter/vf_blend.c | 6 |
1 files changed, 3 insertions, 3 deletions
diff --git a/libavfilter/vf_blend.c b/libavfilter/vf_blend.c index bc276d4a8f..c9e7e7d856 100644 --- a/libavfilter/vf_blend.c +++ b/libavfilter/vf_blend.c @@ -359,7 +359,7 @@ static int request_frame(AVFilterLink *outlink) b->frame_requested = 1; while (b->frame_requested) { - in = ff_bufqueue_peek(&b->queue_top, TOP) ? BOTTOM : TOP; + in = ff_bufqueue_peek(&b->queue_top, 0) ? BOTTOM : TOP; ret = ff_request_frame(ctx->inputs[in]); if (ret < 0) return ret; @@ -413,8 +413,8 @@ static int filter_frame(AVFilterLink *inlink, AVFrame *buf) while (1) { AVFrame *top_buf, *bottom_buf, *out_buf; - if (!ff_bufqueue_peek(&b->queue_top, TOP) || - !ff_bufqueue_peek(&b->queue_bottom, BOTTOM)) break; + if (!ff_bufqueue_peek(&b->queue_top, 0) || + !ff_bufqueue_peek(&b->queue_bottom, 0)) break; top_buf = ff_bufqueue_get(&b->queue_top); bottom_buf = ff_bufqueue_get(&b->queue_bottom); |