Merge remote-tracking branch 'qatar/master'

[ffmpeg] / libavdevice / alsa-audio-common.c

diff --git a/libavdevice/alsa-audio-common.c b/libavdevice/alsa-audio-common.c
index 8c5be3c8645d9162c7cb68cd924252b39eed2736..0943ab030ab693ea701eafb62f95836fe1e8a113 100644 (file)
--- a/libavdevice/alsa-audio-common.c
+++ b/libavdevice/alsa-audio-common.c
@@ -260,6 +260,7 @@ av_cold int ff_alsa_open(AVFormatContext *ctx, snd_pcm_stream_t mode,
     }
 
     snd_pcm_hw_params_get_buffer_size_max(hw_params, &buffer_size);
+    buffer_size = FFMIN(buffer_size, ALSA_BUFFER_SIZE_MAX);
     /* TODO: maybe use ctx->max_picture_buffer somehow */
     res = snd_pcm_hw_params_set_buffer_size_near(h, hw_params, &buffer_size);
     if (res < 0) {
@@ -269,6 +270,8 @@ av_cold int ff_alsa_open(AVFormatContext *ctx, snd_pcm_stream_t mode,
     }
 
     snd_pcm_hw_params_get_period_size_min(hw_params, &period_size, NULL);
+    if (!period_size)
+        period_size = buffer_size / 4;
     res = snd_pcm_hw_params_set_period_size_near(h, hw_params, &period_size, NULL);
     if (res < 0) {
         av_log(ctx, AV_LOG_ERROR, "cannot set ALSA period size (%s)\n",
@@ -316,6 +319,7 @@ av_cold int ff_alsa_close(AVFormatContext *s1)
     AlsaData *s = s1->priv_data;
 
     av_freep(&s->reorder_buf);
+    ff_timefilter_destroy(s->timefilter);
     snd_pcm_close(s->h);
     return 0;
 }