diff --git a/libavdevice/alsa-audio-common.c b/libavdevice/alsa-audio-common.c index 4c7c881300..825fcb1dbd 100644 --- a/libavdevice/alsa-audio-common.c +++ b/libavdevice/alsa-audio-common.c @@ -137,6 +137,7 @@ 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) { diff --git a/libavdevice/alsa-audio.h b/libavdevice/alsa-audio.h index 32c07426ef..c8c6ea4aff 100644 --- a/libavdevice/alsa-audio.h +++ b/libavdevice/alsa-audio.h @@ -40,6 +40,8 @@ other formats */ #define DEFAULT_CODEC_ID AV_NE(CODEC_ID_PCM_S16BE, CODEC_ID_PCM_S16LE) +#define ALSA_BUFFER_SIZE_MAX 32768 + typedef struct { AVClass *class; snd_pcm_t *h;