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avcodec/ffv1: Only allocate ThreadFrames for the decoder

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The FFV1 decoder only uses the last frame's data to conceal
errors. The encoder does not have this problem and therefore
only uses the current frame and none of the ThreadFrames.
So only allocate them for the decoder.

Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@outlook.com>
This commit is contained in:
Andreas Rheinhardt
2022-09-02 20:51:24 +02:00
parent 232e88928e
commit ff6f2c5586
2 changed files with 22 additions and 14 deletions
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13
libavcodec/ffv1.c
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@@ -43,11 +43,6 @@ av_cold int ff_ffv1_common_init(AVCodecContext *avctx)
s->avctx = avctx;
s->flags = avctx->flags;
s->picture.f = av_frame_alloc();
s->last_picture.f = av_frame_alloc();
if (!s->picture.f || !s->last_picture.f)
return AVERROR(ENOMEM);
s->width = avctx->width;
s->height = avctx->height;
@@ -198,14 +193,6 @@ av_cold int ff_ffv1_close(AVCodecContext *avctx)
FFV1Context *s = avctx->priv_data;
int i, j;
if (s->picture.f)
ff_thread_release_ext_buffer(avctx, &s->picture);
av_frame_free(&s->picture.f);
if (s->last_picture.f)
ff_thread_release_ext_buffer(avctx, &s->last_picture);
av_frame_free(&s->last_picture.f);
for (j = 0; j < s->max_slice_count; j++) {
FFV1Context *fs = s->slice_context[j];
for (i = 0; i < s->plane_count; i++) {