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avfilter/avf_showspectrum: improve pts handling

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Signed-off-by: Paul B Mahol <onemda@gmail.com>
This commit is contained in:
Paul B Mahol 2016-02-12 17:14:30 +01:00
parent 817bf8483e
commit 13ea7c9780
1 changed files with 7 additions and 3 deletions
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10
libavfilter/avf_showspectrum.c
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@ -793,7 +793,10 @@ static int filter_frame(AVFilterLink *inlink, AVFrame *insamples)
AVFilterContext *ctx = inlink->dst;
ShowSpectrumContext *s = ctx->priv;
AVFrame *fin = NULL;
int ret = 0;
int ret = 0, consumed = 0;
if (s->pts == AV_NOPTS_VALUE)
s->pts = insamples->pts - av_audio_fifo_size(s->fifo);
av_audio_fifo_write(s->fifo, (void **)insamples->extended_data, insamples->nb_samples);
av_frame_free(&insamples);
@ -804,8 +807,8 @@ static int filter_frame(AVFilterLink *inlink, AVFrame *insamples)
goto fail;
}
fin->pts = s->pts;
s->pts += s->hop_size;
fin->pts = s->pts + consumed;
consumed += s->hop_size;
ret = av_audio_fifo_peek(s->fifo, (void **)fin->extended_data, s->win_size);
if (ret < 0)
goto fail;
@ -826,6 +829,7 @@ static int filter_frame(AVFilterLink *inlink, AVFrame *insamples)
}
fail:
s->pts = AV_NOPTS_VALUE;
av_frame_free(&fin);
return ret;
}