diff options
Diffstat (limited to 'src/pcm/pcm_params.c')
| -rw-r--r-- | src/pcm/pcm_params.c | 33 |
1 files changed, 24 insertions, 9 deletions
diff --git a/src/pcm/pcm_params.c b/src/pcm/pcm_params.c index 80b3fd21..0e1c3fc5 100644 --- a/src/pcm/pcm_params.c +++ b/src/pcm/pcm_params.c @@ -1081,6 +1081,7 @@ int snd_pcm_hw_param_never_eq(const snd_pcm_hw_params_t *params, static int snd_pcm_hw_params_choose(snd_pcm_t *pcm, snd_pcm_hw_params_t *params) { int err; + const char *compat = getenv("LIBASOUND_COMPAT"); #ifdef CHOOSE_DEBUG snd_output_t *log; snd_output_stdio_attach(&log, stderr, 0); @@ -1103,15 +1104,29 @@ static int snd_pcm_hw_params_choose(snd_pcm_t *pcm, snd_pcm_hw_params_t *params) err = snd_pcm_hw_param_set_first(pcm, params, SND_PCM_HW_PARAM_RATE, NULL, 0); if (err < 0) return err; - err = snd_pcm_hw_param_set_first(pcm, params, SND_PCM_HW_PARAM_PERIOD_TIME, NULL, 0); - if (err < 0) - return err; - err = snd_pcm_hw_param_set_first(pcm, params, SND_PCM_HW_PARAM_PERIOD_SIZE, NULL, 0); - if (err < 0) - return err; - err = snd_pcm_hw_param_set_last(pcm, params, SND_PCM_HW_PARAM_BUFFER_SIZE, NULL, 0); - if (err < 0) - return err; + if (compat && *compat) { + /* old mode */ + err = snd_pcm_hw_param_set_first(pcm, params, SND_PCM_HW_PARAM_PERIOD_TIME, NULL, 0); + if (err < 0) + return err; + err = snd_pcm_hw_param_set_first(pcm, params, SND_PCM_HW_PARAM_PERIOD_SIZE, NULL, 0); + if (err < 0) + return err; + err = snd_pcm_hw_param_set_last(pcm, params, SND_PCM_HW_PARAM_BUFFER_SIZE, NULL, 0); + if (err < 0) + return err; + } else { + /* determine buffer size first */ + err = snd_pcm_hw_param_set_last(pcm, params, SND_PCM_HW_PARAM_BUFFER_SIZE, NULL, 0); + if (err < 0) + return err; + err = snd_pcm_hw_param_set_first(pcm, params, SND_PCM_HW_PARAM_PERIOD_SIZE, NULL, 0); + if (err < 0) + return err; + err = snd_pcm_hw_param_set_first(pcm, params, SND_PCM_HW_PARAM_PERIOD_TIME, NULL, 0); + if (err < 0) + return err; + } err = snd_pcm_hw_param_set_first(pcm, params, SND_PCM_HW_PARAM_TICK_TIME, NULL, 0); if (err < 0) return err; |