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af_asyncts: fix offset calculation 

delta is in samples, not bytes. Also the sample format is not guaranteed
to be planar.

CC:libav-stable@libav.org
This commit is contained in:
Anton Khirnov 2013-05-08 21:44:20 +02:00
parent 72fbc9685c
commit 16a4a18db0
1 changed files with 9 additions and 4 deletions
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13
libavfilter/af_asyncts.c
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@ -237,18 +237,23 @@ static int filter_frame(AVFilterLink *inlink, AVFrame *buf)
}
if (s->first_frame && delta > 0) {
int planar = av_sample_fmt_is_planar(buf_out->format);
int planes = planar ? nb_channels : 1;
int block_size = av_get_bytes_per_sample(buf_out->format) *
(planar ? 1 : nb_channels);
int ch;
av_samples_set_silence(buf_out->extended_data, 0, delta,
nb_channels, buf->format);
for (ch = 0; ch < nb_channels; ch++)
buf_out->extended_data[ch] += delta;
for (ch = 0; ch < planes; ch++)
buf_out->extended_data[ch] += delta * block_size;
avresample_read(s->avr, buf_out->extended_data, out_size);
for (ch = 0; ch < nb_channels; ch++)
buf_out->extended_data[ch] -= delta;
for (ch = 0; ch < planes; ch++)
buf_out->extended_data[ch] -= delta * block_size;
} else {
avresample_read(s->avr, buf_out->extended_data, out_size);