diff options
| -rw-r--r-- | src/audio.c | 26 |
1 files changed, 22 insertions, 4 deletions
diff --git a/src/audio.c b/src/audio.c index aa5f03e3f..b868edb30 100644 --- a/src/audio.c +++ b/src/audio.c @@ -289,6 +289,27 @@ static int flushAudioBuffer(void) return ret; } +static size_t audio_buffer_size(const struct audio_format *af) +{ + return (af->bits >> 3) * af->channels * (af->sampleRate >> 5); +} + +static void audio_buffer_resize(size_t size) +{ + if (audio_buffer.size == size) + return; + + if (audio_buffer.buffer != NULL) + free(audio_buffer.buffer); + + if (size > 0) + audio_buffer.buffer = xmalloc(size); + else + audio_buffer.buffer = NULL; + + audio_buffer.size = size; +} + int openAudioDevice(const struct audio_format *audioFormat) { int ret = -1; @@ -302,10 +323,7 @@ int openAudioDevice(const struct audio_format *audioFormat) flushAudioBuffer(); if (audioFormat != NULL) audio_buffer.format = *audioFormat; - audio_buffer.size = (audio_buffer.format.bits >> 3) * - audio_buffer.format.channels; - audio_buffer.size *= audio_buffer.format.sampleRate >> 5; - audio_buffer.buffer = xrealloc(audio_buffer.buffer, audio_buffer.size); + audio_buffer_resize(audio_buffer_size(&audio_buffer.format)); } syncAudioDeviceStates(); |