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lavfi/buffersrc: push frame directly. 

This allows to remove the queued frame entirely.
This commit is contained in:
Nicolas George 2019-12-02 17:01:50 +01:00
parent 02daafb45c
commit f09ae7309d
1 changed files with 8 additions and 16 deletions
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24
libavfilter/buffersrc.c
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@ -43,7 +43,6 @@
typedef struct BufferSourceContext {
const AVClass *class;
AVFrame *queued_frame;
AVRational time_base; ///< time_base to set in the output link
AVRational frame_rate; ///< frame_rate to set in the output link
unsigned nb_failed_requests;
@ -241,11 +240,11 @@ static int av_buffersrc_add_frame_internal(AVFilterContext *ctx,
}
}
av_assert0(s->queued_frame == NULL);
s->queued_frame = copy;
if ((ret = ctx->output_pads[0].request_frame(ctx->outputs[0])) < 0)
ret = ff_filter_frame(ctx->outputs[0], copy);
if (ret < 0) {
av_frame_free(&copy);
return ret;
av_assert0(s->queued_frame == NULL);
}
if ((flags & AV_BUFFERSRC_FLAG_PUSH)) {
ret = push_frame(ctx->graph);
@ -369,7 +368,6 @@ static av_cold int init_audio(AVFilterContext *ctx)
static av_cold void uninit(AVFilterContext *ctx)
{
BufferSourceContext *s = ctx->priv;
av_assert0(s->queued_frame == NULL);
av_buffer_unref(&s->hw_frames_ctx);
}
@ -443,16 +441,10 @@ static int request_frame(AVFilterLink *link)
AVFrame *frame;
int ret;
if (!c->queued_frame) {
if (c->eof)
return AVERROR_EOF;
c->nb_failed_requests++;
return AVERROR(EAGAIN);
}
frame = c->queued_frame;
c->queued_frame = NULL;
ret = ff_filter_frame(link, frame);
return ret;
if (c->eof)
return AVERROR_EOF;
c->nb_failed_requests++;
return AVERROR(EAGAIN);
}
static const AVFilterPad avfilter_vsrc_buffer_outputs[] = {