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avutil/samplefmt: don't add offsets to NULL pointers

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Signed-off-by: James Almer <jamrial@gmail.com>
This commit is contained in:
James Almer 2021-06-07 00:04:21 -03:00
parent 7916c14713
commit 8a6103326e
1 changed files with 10 additions and 3 deletions
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13
libavutil/samplefmt.c
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@ -160,13 +160,20 @@ int av_samples_fill_arrays(uint8_t **audio_data, int *linesize,
if (buf_size < 0)
return buf_size;
if (linesize)
*linesize = line_size;
memset(audio_data, 0, planar
? sizeof(*audio_data) * nb_channels
: sizeof(*audio_data));
if (!buf)
return buf_size;
audio_data[0] = (uint8_t *)buf;
for (ch = 1; planar && ch < nb_channels; ch++)
audio_data[ch] = audio_data[ch-1] + line_size;
if (linesize)
*linesize = line_size;
return buf_size;
}