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avformat/mpegenc - log error msgs for unsupported LPCM streams

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The MPEG-PS muxer only accepts PCM streams having up to 8 channels
and the following sampling rates: 32/44.1/48/96 kHz.

Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
This commit is contained in:
Gyan Doshi 2018-02-20 20:31:28 +05:30 committed by Michael Niedermayer
parent ff0de964e7
commit 4f8c691040
1 changed files with 12 additions and 3 deletions
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15
libavformat/mpegenc.c
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@ -375,10 +375,19 @@ static av_cold int mpeg_mux_init(AVFormatContext *ctx)
if (lpcm_freq_tab[j] == st->codecpar->sample_rate)
break;
}
if (j == 4)
if (j == 4) {
int sr;
av_log(ctx, AV_LOG_ERROR, "Invalid sampling rate for PCM stream.\n");
av_log(ctx, AV_LOG_INFO, "Allowed sampling rates:");
for (sr = 0; sr < 4; sr++)
av_log(ctx, AV_LOG_INFO, " %d", lpcm_freq_tab[sr]);
av_log(ctx, AV_LOG_INFO, "\n");
goto fail;
if (st->codecpar->channels > 8)
return -1;
}
if (st->codecpar->channels > 8) {
av_log(ctx, AV_LOG_ERROR, "At most 8 channels allowed for LPCM streams.\n");
goto fail;
}
stream->lpcm_header[0] = 0x0c;
stream->lpcm_header[1] = (st->codecpar->channels - 1) | (j << 4);
stream->lpcm_header[2] = 0x80;