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ffmpeg: more expressive sample rate automatic selection.

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Output now lists the available sample rates with commands like
ffmpeg -f lavfi -i aevalsrc=0 -ar 20000 -y /tmp/out.mp3
This commit is contained in:
Clément Bœsch 2012-03-20 16:19:49 +01:00 committed by Clément Bœsch
parent a67d9cfa58
commit 21d650cb69
1 changed files with 12 additions and 1 deletions

13
ffmpeg.c
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@ -953,7 +953,18 @@ static void choose_sample_rate(AVStream *st, AVCodec *codec)
}
}
if (best_dist) {
av_log(st->codec, AV_LOG_WARNING, "Requested sampling rate unsupported using closest supported (%d)\n", best);
int i;
const int *sample_rates = codec->supported_samplerates;
av_log(st->codec, AV_LOG_WARNING,
"Requested sampling rate (%dHz) unsupported, using %dHz instead\n"
"Available sampling rates for %s:",
st->codec->sample_rate, best, codec->name);
for (i = 0; sample_rates[i]; i++) {
if (!sample_rates[i + 1]) av_log(st->codec, AV_LOG_WARNING, " and");
else if (i) av_log(st->codec, AV_LOG_WARNING, ",");
av_log(st->codec, AV_LOG_WARNING, " %d", sample_rates[i]);
}
av_log(st->codec, AV_LOG_WARNING, ".\n");
}
st->codec->sample_rate = best;
}