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avdevice/pulse_audio_dec: query actual fragment size 

Signed-off-by: Marton Balint <cus@passwd.hu>
This commit is contained in:
Marton Balint 2021-02-10 00:15:00 +01:00
parent 1a90cf4410
commit 104aa921c9
1 changed files with 9 additions and 0 deletions
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9
libavdevice/pulse_audio_dec.c
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@ -149,6 +149,7 @@ static av_cold int pulse_read_header(AVFormatContext *s)
pa_buffer_attr attr = { -1 };
pa_channel_map cmap;
const pa_buffer_attr *queried_attr;
pa_channel_map_init_extend(&cmap, pd->channels, PA_CHANNEL_MAP_WAVEEX);
@ -242,6 +243,14 @@ static av_cold int pulse_read_header(AVFormatContext *s)
pa_threaded_mainloop_wait(pd->mainloop);
}
/* Query actual fragment size */
queried_attr = pa_stream_get_buffer_attr(pd->stream);
if (!queried_attr || queried_attr->fragsize > INT_MAX/100) {
ret = AVERROR_EXTERNAL;
goto unlock_and_fail;
}
pd->fragment_size = queried_attr->fragsize;
pa_threaded_mainloop_unlock(pd->mainloop);
/* take real parameters */