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avcodec/nuv: prevent frame copying when outputting duplicate frames 

Signed-off-by: James Almer <jamrial@gmail.com>
This commit is contained in:
James Almer 2019-09-03 23:54:19 -03:00
parent 343f8d514e
commit a0739e8a16
1 changed files with 3 additions and 1 deletions
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4
libavcodec/nuv.c
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@ -162,6 +162,7 @@ static int decode_frame(AVCodecContext *avctx, void *data, int *got_frame,
int keyframe, ret;
int size_change = 0;
int minsize = 0;
int flags = 0;
int result, init_frame = !avctx->frame_number;
enum {
NUV_UNCOMPRESSED = '0',
@ -204,6 +205,7 @@ static int decode_frame(AVCodecContext *avctx, void *data, int *got_frame,
}
break;
case NUV_COPY_LAST:
flags |= FF_REGET_BUFFER_FLAG_READONLY;
keyframe = 0;
break;
default:
@ -268,7 +270,7 @@ retry:
init_frame = 1;
}
if ((result = ff_reget_buffer(avctx, c->pic, 0)) < 0)
if ((result = ff_reget_buffer(avctx, c->pic, flags)) < 0)
return result;
if (init_frame) {
memset(c->pic->data[0], 0, avctx->height * c->pic->linesize[0]);