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lavfi/aevalsrc: try to honor specified duration

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If nb_samples divide sample_rate and if nb_samples allow it, aevalsrc
should generate the exact amount of samples according to duration.

Example:
aevalsrc=0::n=480:s=48000:d=5.21 should generate 250080 samples.

Signed-off-by: Stefano Sabatini <stefasab@gmail.com>
This commit is contained in:
Matthieu Bouron 2013-01-12 14:32:03 +01:00 committed by Stefano Sabatini
parent 868ac91c8d
commit f9eed5d7e6
1 changed files with 2 additions and 2 deletions
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4
libavfilter/asrc_aevalsrc.c
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@ -214,9 +214,9 @@ static int request_frame(AVFilterLink *outlink)
EvalContext *eval = outlink->src->priv;
AVFilterBufferRef *samplesref;
int i, j;
double t = eval->var_values[VAR_N] * (double)1/eval->sample_rate;
double t = eval->n * (double)1/eval->sample_rate;
if (eval->duration >= 0 && t > eval->duration)
if (eval->duration >= 0 && t >= eval->duration)
return AVERROR_EOF;
samplesref = ff_get_audio_buffer(outlink, AV_PERM_WRITE, eval->nb_samples);