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examples: demuxing: print ffplay command even if sample format is planar

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Adjust the code so that a working ffplay command is printed in the
planar audio case.
This commit is contained in:
wm4 2013-07-18 15:45:37 +02:00 committed by Stefano Sabatini
parent 9f31c1608c
commit 72f5a6d067
1 changed files with 14 additions and 2 deletions
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16
doc/examples/demuxing.c
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@ -302,13 +302,25 @@ int main (int argc, char **argv)
}
if (audio_stream) {
enum AVSampleFormat sfmt = audio_dec_ctx->sample_fmt;
int n_channels = audio_dec_ctx->channels;
const char *fmt;
if ((ret = get_format_from_sample_fmt(&fmt, audio_dec_ctx->sample_fmt)) < 0)
if (av_sample_fmt_is_planar(sfmt)) {
const char *packed = av_get_sample_fmt_name(sfmt);
printf("Warning: the sample format the decoder produced is planar "
"(%s). This example will output the first channel only.\n",
packed ? packed : "?");
sfmt = av_get_packed_sample_fmt(sfmt);
n_channels = 1;
}
if ((ret = get_format_from_sample_fmt(&fmt, sfmt)) < 0)
goto end;
printf("Play the output audio file with the command:\n"
"ffplay -f %s -ac %d -ar %d %s\n",
fmt, audio_dec_ctx->channels, audio_dec_ctx->sample_rate,
fmt, n_channels, audio_dec_ctx->sample_rate,
audio_dst_filename);
}