diff options
Diffstat (limited to 'libao2/ao_alsa1x.c')
| -rw-r--r-- | libao2/ao_alsa1x.c | 21 |
1 files changed, 16 insertions, 5 deletions
diff --git a/libao2/ao_alsa1x.c b/libao2/ao_alsa1x.c index 626d034380..cd1e7b6b51 100644 --- a/libao2/ao_alsa1x.c +++ b/libao2/ao_alsa1x.c @@ -55,6 +55,7 @@ static int control(int cmd, int arg) return(CONTROL_UNKNOWN); } +#define start /* open & setup audio device return: 1=success 0=fail @@ -64,7 +65,6 @@ static int init(int rate_hz, int channels, int format, int flags) int err; int cards = -1; snd_pcm_info_t *alsa_info; - int chunck_size; printf("alsa-init: requested format: %d Hz, %d channels, %s\n", rate_hz, channels, audio_out_format_name(format)); @@ -88,7 +88,6 @@ static int init(int rate_hz, int channels, int format, int flags) ao_outburst = OUTBURST; ao_buffersize = 16384; - memset(&alsa_format, 0, sizeof(alsa_format)); switch (format) { case AFMT_S8: @@ -124,6 +123,8 @@ static int init(int rate_hz, int channels, int format, int flags) printf("alsa-init: invalid format (%s) requested - output disabled\n", audio_out_format_name(format)); return(0); + default: + break; } if ((err = snd_pcm_info_malloc(&alsa_info)) < 0) @@ -196,6 +197,13 @@ static int init(int rate_hz, int channels, int format, int flags) return(0); } + { + int fragment_size = 4096; + int fragment_count = 8; + snd_pcm_hw_params_set_period_size(alsa_handler, alsa_hwparams, fragment_size / 4, 0); + snd_pcm_hw_params_set_periods(alsa_handler, alsa_hwparams, fragment_count, 0); + } + #ifdef buffersize if ((err = snd_pcm_hw_params_get_buffer_size(alsa_hwparams)) < 0) { @@ -266,6 +274,7 @@ static int init(int rate_hz, int channels, int format, int flags) return(0); } +#ifdef start if ((err = snd_pcm_start(alsa_handler)) < 0) { printf("alsa-init: pcm start error: %s\n", snd_strerror(err)); @@ -277,7 +286,7 @@ static int init(int rate_hz, int channels, int format, int flags) return(0); } } - +#endif printf("AUDIO: %d Hz/%d channels/%d bps/%d bytes buffer/%s\n", ao_samplerate, ao_channels+1, ao_bps, ao_buffersize, snd_pcm_format_description(alsa_format)); @@ -384,9 +393,11 @@ static void reset() */ static int play(void* data, int len, int flags) { - if ((len = snd_pcm_writei(alsa_handler, data, len)) != len) + int got_len; + + if ((got_len = snd_pcm_writei(alsa_handler, data, len/4)) != len/4) { - if (len == -EPIPE) /* underrun? */ + if (got_len == -EPIPE) /* underrun? */ { printf("alsa-play: alsa underrun, resetting stream\n"); if ((len = snd_pcm_prepare(alsa_handler)) < 0) |