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Code Issues Releases Activity

avcodec/svq3: Deduplicate allocating dummy frame

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Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@outlook.com>
This commit is contained in:
Andreas Rheinhardt
2025-05-15 03:29:43 +02:00
parent cb54eca41a
commit eacde6ee7b
1 changed files with 19 additions and 16 deletions
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35
libavcodec/svq3.c
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@ -1377,6 +1377,23 @@ fail:
return ret; return ret;
} }
static av_cold int alloc_dummy_frame(AVCodecContext *avctx, SVQ3Frame *pic)
{
av_log(avctx, AV_LOG_ERROR, "Missing reference frame.\n");
av_frame_unref(pic->f);
int ret = get_buffer(avctx, pic);
if (ret < 0)
return ret;
memset(pic->f->data[0], 0, avctx->height * pic->f->linesize[0]);
memset(pic->f->data[1], 0x80, (avctx->height / 2) *
pic->f->linesize[1]);
memset(pic->f->data[2], 0x80, (avctx->height / 2) *
pic->f->linesize[2]);
return 0;
}
static int svq3_decode_frame(AVCodecContext *avctx, AVFrame *rframe, static int svq3_decode_frame(AVCodecContext *avctx, AVFrame *rframe,
int *got_frame, AVPacket *avpkt) int *got_frame, AVPacket *avpkt)
{ {
@ -1441,29 +1458,15 @@ static int svq3_decode_frame(AVCodecContext *avctx, AVFrame *rframe,
if (s->pict_type != AV_PICTURE_TYPE_I) { if (s->pict_type != AV_PICTURE_TYPE_I) {
if (!s->last_pic->f->data[0]) { if (!s->last_pic->f->data[0]) {
av_log(avctx, AV_LOG_ERROR, "Missing reference frame.\n"); ret = alloc_dummy_frame(avctx, s->last_pic);
av_frame_unref(s->last_pic->f);
ret = get_buffer(avctx, s->last_pic);
if (ret < 0) if (ret < 0)
return ret; return ret;
memset(s->last_pic->f->data[0], 0, avctx->height * s->last_pic->f->linesize[0]);
memset(s->last_pic->f->data[1], 0x80, (avctx->height / 2) *
s->last_pic->f->linesize[1]);
memset(s->last_pic->f->data[2], 0x80, (avctx->height / 2) *
s->last_pic->f->linesize[2]);
} }
if (s->pict_type == AV_PICTURE_TYPE_B && !s->next_pic->f->data[0]) { if (s->pict_type == AV_PICTURE_TYPE_B && !s->next_pic->f->data[0]) {
av_log(avctx, AV_LOG_ERROR, "Missing reference frame.\n"); ret = alloc_dummy_frame(avctx, s->next_pic);
av_frame_unref(s->next_pic->f);
ret = get_buffer(avctx, s->next_pic);
if (ret < 0) if (ret < 0)
return ret; return ret;
memset(s->next_pic->f->data[0], 0, avctx->height * s->next_pic->f->linesize[0]);
memset(s->next_pic->f->data[1], 0x80, (avctx->height / 2) *
s->next_pic->f->linesize[1]);
memset(s->next_pic->f->data[2], 0x80, (avctx->height / 2) *
s->next_pic->f->linesize[2]);
} }
} }