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lavfi/af_join: partially fix scheduling.

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This commit is contained in:
Nicolas George 2015-10-22 09:56:11 +02:00
parent 67d3f5296e
commit d0b82d798d
1 changed files with 33 additions and 17 deletions
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52
libavfilter/af_join.c
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@ -78,11 +78,13 @@ static const AVOption join_options[] = {
AVFILTER_DEFINE_CLASS(join);
static int try_push_frame(AVFilterContext *ctx);
static int filter_frame(AVFilterLink *link, AVFrame *frame)
{
AVFilterContext *ctx = link->dst;
JoinContext *s = ctx->priv;
int i;
int i, j;
for (i = 0; i < ctx->nb_inputs; i++)
if (link == ctx->inputs[i])
@ -91,7 +93,17 @@ static int filter_frame(AVFilterLink *link, AVFrame *frame)
av_assert0(!s->input_frames[i]);
s->input_frames[i] = frame;
return 0;
/* request the same number of samples on all inputs */
/* FIXME that means a frame arriving asynchronously on a different input
will not have the requested number of samples */
if (i == 0) {
int nb_samples = s->input_frames[0]->nb_samples;
for (j = 1; !i && j < ctx->nb_inputs; j++)
ctx->inputs[j]->request_samples = nb_samples;
}
return try_push_frame(ctx);
}
static int parse_maps(AVFilterContext *ctx)
@ -387,27 +399,31 @@ static int join_request_frame(AVFilterLink *outlink)
{
AVFilterContext *ctx = outlink->src;
JoinContext *s = ctx->priv;
AVFrame *frame;
int linesize = INT_MAX;
int nb_samples = 0;
int nb_buffers = 0;
int i, j, ret;
int i;
/* get a frame on each input */
for (i = 0; i < ctx->nb_inputs; i++) {
AVFilterLink *inlink = ctx->inputs[i];
if (!s->input_frames[i] &&
(ret = ff_request_frame(inlink)) < 0)
return ret;
/* request the same number of samples on all inputs */
if (i == 0) {
nb_samples = s->input_frames[0]->nb_samples;
for (j = 1; !i && j < ctx->nb_inputs; j++)
ctx->inputs[j]->request_samples = nb_samples;
if (!s->input_frames[i])
return ff_request_frame(inlink);
}
return 0;
}
static int try_push_frame(AVFilterContext *ctx)
{
AVFilterLink *outlink = ctx->outputs[0];
JoinContext *s = ctx->priv;
AVFrame *frame;
int linesize = INT_MAX;
int nb_samples = INT_MAX;
int nb_buffers = 0;
int i, j, ret;
for (i = 0; i < ctx->nb_inputs; i++) {
if (!s->input_frames[i])
return 0;
nb_samples = FFMIN(nb_samples, s->input_frames[i]->nb_samples);
}
/* setup the output frame */