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ffplay: force setting alsa buffer size 

Signed-off-by: Marton Balint <cus@passwd.hu>
This commit is contained in:
Marton Balint 2016-04-20 23:50:38 +02:00
parent 1e109bbbf1
commit 215a2d7678
1 changed files with 7 additions and 0 deletions
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7
ffplay.c
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@ -3781,6 +3781,7 @@ int main(int argc, char **argv)
int flags;
VideoState *is;
char dummy_videodriver[] = "SDL_VIDEODRIVER=dummy";
char alsa_bufsize[] = "SDL_AUDIO_ALSA_SET_BUFFER_SIZE=1";
av_log_set_flags(AV_LOG_SKIP_REPEATED);
parse_loglevel(argc, argv, options);
@ -3818,6 +3819,12 @@ int main(int argc, char **argv)
flags = SDL_INIT_VIDEO | SDL_INIT_AUDIO | SDL_INIT_TIMER;
if (audio_disable)
flags &= ~SDL_INIT_AUDIO;
else {
/* Try to work around an occasional ALSA buffer underflow issue when the
* period size is NPOT due to ALSA resampling by forcing the buffer size. */
if (!SDL_getenv("SDL_AUDIO_ALSA_SET_BUFFER_SIZE"))
SDL_putenv(alsa_bufsize);
}
if (display_disable)
SDL_putenv(dummy_videodriver); /* For the event queue, we always need a video driver. */
#if !defined(_WIN32) && !defined(__APPLE__)