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avfilter/af_join: fix eof timestamps and blocking in many scenarios

This commit is contained in:
Paul B Mahol 2021-08-10 20:56:11 +02:00
parent 90bf83d6f1
commit c245963a21
1 changed files with 37 additions and 25 deletions
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62
libavfilter/af_join.c
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@ -50,6 +50,8 @@ typedef struct JoinContext {
char *channel_layout_str;
uint64_t channel_layout;
int64_t eof_pts;
int nb_channels;
ChannelMap *channels;
@ -372,12 +374,15 @@ static int try_push_frame(AVFilterContext *ctx)
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);
if (!s->input_frames[i]) {
nb_samples = 0;
break;
} else {
nb_samples = FFMIN(nb_samples, s->input_frames[i]->nb_samples);
}
}
if (!nb_samples)
return 0;
goto eof;
/* setup the output frame */
frame = av_frame_alloc();
@ -454,6 +459,9 @@ static int try_push_frame(AVFilterContext *ctx)
FFMIN(FF_ARRAY_ELEMS(frame->data), s->nb_channels));
}
s->eof_pts = frame->pts + av_rescale_q(frame->nb_samples,
av_make_q(1, outlink->sample_rate),
outlink->time_base);
ret = ff_filter_frame(outlink, frame);
for (i = 0; i < ctx->nb_inputs; i++)
@ -464,6 +472,16 @@ static int try_push_frame(AVFilterContext *ctx)
fail:
av_frame_free(&frame);
return ret;
eof:
for (i = 0; i < ctx->nb_inputs; i++) {
if (ff_outlink_get_status(ctx->inputs[i]) &&
ff_inlink_queued_samples(ctx->inputs[i]) <= 0 &&
!s->input_frames[i]) {
ff_outlink_set_status(outlink, AVERROR_EOF, s->eof_pts);
}
}
return 0;
}
static int activate(AVFilterContext *ctx)
@ -479,16 +497,13 @@ static int activate(AVFilterContext *ctx)
ret = ff_inlink_consume_frame(ctx->inputs[0], &s->input_frames[0]);
if (ret < 0) {
return ret;
} else if (ff_inlink_acknowledge_status(ctx->inputs[0], &status, &pts)) {
ff_outlink_set_status(ctx->outputs[0], status, pts);
} else if (ret == 0 && ff_inlink_acknowledge_status(ctx->inputs[0], &status, &pts)) {
ff_outlink_set_status(ctx->outputs[0], status, s->eof_pts);
return 0;
} else {
if (ff_outlink_frame_wanted(ctx->outputs[0]) && !s->input_frames[0]) {
ff_inlink_request_frame(ctx->inputs[0]);
return 0;
}
}
if (!s->input_frames[0]) {
if (!s->input_frames[0] && ff_outlink_frame_wanted(ctx->outputs[0])) {
ff_inlink_request_frame(ctx->inputs[0]);
return 0;
}
}
@ -498,20 +513,17 @@ static int activate(AVFilterContext *ctx)
for (i = 1; i < ctx->nb_inputs && nb_samples > 0; i++) {
if (s->input_frames[i])
continue;
ret = ff_inlink_consume_samples(ctx->inputs[i], nb_samples, nb_samples, &s->input_frames[i]);
if (ret < 0) {
return ret;
} else if (ff_inlink_acknowledge_status(ctx->inputs[i], &status, &pts)) {
ff_outlink_set_status(ctx->outputs[0], status, pts);
return 0;
}
if (ff_inlink_check_available_samples(ctx->inputs[i], nb_samples) > 0) {
ret = ff_inlink_consume_samples(ctx->inputs[i], nb_samples, nb_samples, &s->input_frames[i]);
if (ret < 0) {
return ret;
} else if (ff_inlink_acknowledge_status(ctx->inputs[i], &status, &pts)) {
ff_outlink_set_status(ctx->outputs[0], status, pts);
return 0;
}
} else {
if (ff_outlink_frame_wanted(ctx->outputs[0])) {
ff_inlink_request_frame(ctx->inputs[i]);
return 0;
}
if (!s->input_frames[i]) {
ff_inlink_request_frame(ctx->inputs[i]);
return 0;
}
}