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pcm: change code formatting for snd_pcm_set_params()
This commit applies code format according to typical and moderate rule, for snd_pcm_set_params(). Signed-off-by: Takashi Sakamoto <o-takashi@sakamocchi.jp> Signed-off-by: Takashi Iwai <tiwai@suse.de>
This commit is contained in:
Takashi Sakamoto
Takashi Iwai
parent
941bd150be
commit
804312cf3e
1 changed files with 114 additions and 79 deletions
193
src/pcm/pcm.c
193
src/pcm/pcm.c
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@ -8291,142 +8291,177 @@ int snd_pcm_set_params(snd_pcm_t *pcm,
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int soft_resample,
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unsigned int latency)
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{
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snd_pcm_hw_params_t *params, params_saved;
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snd_pcm_sw_params_t *swparams;
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const char *s = snd_pcm_stream_name(snd_pcm_stream(pcm));
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snd_pcm_uframes_t buffer_size, period_size;
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unsigned int rrate, period_time;
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int err;
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snd_pcm_hw_params_t *params, params_saved;
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snd_pcm_sw_params_t *swparams;
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const char *s = snd_pcm_stream_name(snd_pcm_stream(pcm));
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snd_pcm_uframes_t buffer_size, period_size;
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unsigned int rrate, period_time;
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int err;
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snd_pcm_hw_params_alloca(¶ms);
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snd_pcm_sw_params_alloca(&swparams);
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snd_pcm_hw_params_alloca(¶ms);
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snd_pcm_sw_params_alloca(&swparams);
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assert(pcm);
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/* choose all parameters */
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err = snd_pcm_hw_params_any(pcm, params);
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if (err < 0) {
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SNDERR("Broken configuration for %s: no configurations available", s);
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return err;
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}
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/* set software resampling */
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err = snd_pcm_hw_params_set_rate_resample(pcm, params, soft_resample);
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if (err < 0) {
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SNDERR("Resampling setup failed for %s: %s", s, snd_strerror(err));
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return err;
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SNDERR("Broken configuration for %s: no configurations available",
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s);
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return err;
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}
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/* set software resampling */
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err = snd_pcm_hw_params_set_rate_resample(pcm, params, soft_resample);
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if (err < 0) {
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SNDERR("Resampling setup failed for %s: %s",
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s, snd_strerror(err));
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return err;
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}
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/* set the selected read/write format */
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err = snd_pcm_hw_params_set_access(pcm, params, access);
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if (err < 0) {
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SNDERR("Access type not available for %s: %s", s, snd_strerror(err));
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SNDERR("Access type not available for %s: %s",
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s, snd_strerror(err));
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return err;
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}
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/* set the sample format */
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err = snd_pcm_hw_params_set_format(pcm, params, format);
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if (err < 0) {
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SNDERR("Sample format not available for %s: %s", s, snd_strerror(err));
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SNDERR("Sample format not available for %s: %s",
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s, snd_strerror(err));
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return err;
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}
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/* set the count of channels */
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err = snd_pcm_hw_params_set_channels(pcm, params, channels);
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if (err < 0) {
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SNDERR("Channels count (%i) not available for %s: %s", channels, s, snd_strerror(err));
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SNDERR("Channels count (%i) not available for %s: %s",
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channels, s, snd_strerror(err));
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return err;
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}
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/* set the stream rate */
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rrate = rate;
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err = INTERNAL(snd_pcm_hw_params_set_rate_near)(pcm, params, &rrate, 0);
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if (err < 0) {
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SNDERR("Rate %iHz not available for playback: %s", rate, snd_strerror(err));
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SNDERR("Rate %iHz not available for playback: %s",
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rate, snd_strerror(err));
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return err;
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}
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if (rrate != rate) {
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SNDERR("Rate doesn't match (requested %iHz, get %iHz)", rate, rrate);
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SNDERR("Rate doesn't match (requested %iHz, get %iHz)",
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rate, rrate);
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return -EINVAL;
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}
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/* set the buffer time */
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params_saved = *params;
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err = INTERNAL(snd_pcm_hw_params_set_buffer_time_near)(pcm, params, &latency, NULL);
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err = INTERNAL(snd_pcm_hw_params_set_buffer_time_near)(pcm, params,
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&latency, NULL);
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if (err < 0) {
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/* error path -> set period size as first */
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/* error path -> set period size as first */
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*params = params_saved;
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/* set the period time */
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period_time = latency / 4;
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err = INTERNAL(snd_pcm_hw_params_set_period_time_near)(pcm, params, &period_time, NULL);
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if (err < 0) {
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SNDERR("Unable to set period time %i for %s: %s", period_time, s, snd_strerror(err));
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return err;
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}
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err = INTERNAL(snd_pcm_hw_params_get_period_size)(params, &period_size, NULL);
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if (err < 0) {
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SNDERR("Unable to get period size for %s: %s", s, snd_strerror(err));
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return err;
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}
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buffer_size = period_size * 4;
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err = INTERNAL(snd_pcm_hw_params_set_buffer_size_near)(pcm, params, &buffer_size);
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if (err < 0) {
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SNDERR("Unable to set buffer size %lu %s: %s", buffer_size, s, snd_strerror(err));
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return err;
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}
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err = INTERNAL(snd_pcm_hw_params_get_buffer_size)(params, &buffer_size);
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if (err < 0) {
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SNDERR("Unable to get buffer size for %s: %s", s, snd_strerror(err));
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return err;
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}
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/* set the period time */
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period_time = latency / 4;
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err = INTERNAL(snd_pcm_hw_params_set_period_time_near)(pcm,
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params, &period_time, NULL);
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if (err < 0) {
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SNDERR("Unable to set period time %i for %s: %s",
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period_time, s, snd_strerror(err));
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return err;
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}
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err = INTERNAL(snd_pcm_hw_params_get_period_size)(params,
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&period_size, NULL);
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if (err < 0) {
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SNDERR("Unable to get period size for %s: %s",
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s, snd_strerror(err));
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return err;
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}
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buffer_size = period_size * 4;
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err = INTERNAL(snd_pcm_hw_params_set_buffer_size_near)(pcm,
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params, &buffer_size);
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if (err < 0) {
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SNDERR("Unable to set buffer size %lu %s: %s",
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buffer_size, s, snd_strerror(err));
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return err;
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}
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err = INTERNAL(snd_pcm_hw_params_get_buffer_size)(params,
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&buffer_size);
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if (err < 0) {
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SNDERR("Unable to get buffer size for %s: %s",
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s, snd_strerror(err));
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return err;
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}
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} else {
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/* standard configuration buffer_time -> periods */
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err = INTERNAL(snd_pcm_hw_params_get_buffer_size)(params, &buffer_size);
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if (err < 0) {
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SNDERR("Unable to get buffer size for %s: %s", s, snd_strerror(err));
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return err;
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}
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err = INTERNAL(snd_pcm_hw_params_get_buffer_time)(params, &latency, NULL);
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if (err < 0) {
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SNDERR("Unable to get buffer time (latency) for %s: %s", s, snd_strerror(err));
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return err;
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}
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/* set the period time */
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period_time = latency / 4;
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err = INTERNAL(snd_pcm_hw_params_set_period_time_near)(pcm, params, &period_time, NULL);
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if (err < 0) {
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SNDERR("Unable to set period time %i for %s: %s", period_time, s, snd_strerror(err));
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return err;
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}
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err = INTERNAL(snd_pcm_hw_params_get_period_size)(params, &period_size, NULL);
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if (err < 0) {
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SNDERR("Unable to get period size for %s: %s", s, snd_strerror(err));
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return err;
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}
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}
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/* standard configuration buffer_time -> periods */
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err = INTERNAL(snd_pcm_hw_params_get_buffer_size)(params,
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&buffer_size);
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if (err < 0) {
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SNDERR("Unable to get buffer size for %s: %s",
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s, snd_strerror(err));
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return err;
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}
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err = INTERNAL(snd_pcm_hw_params_get_buffer_time)(params,
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&latency, NULL);
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if (err < 0) {
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SNDERR("Unable to get buffer time (latency) for %s: %s",
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s, snd_strerror(err));
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return err;
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}
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/* set the period time */
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period_time = latency / 4;
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err = INTERNAL(snd_pcm_hw_params_set_period_time_near)(pcm,
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params, &period_time, NULL);
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if (err < 0) {
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SNDERR("Unable to set period time %i for %s: %s",
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period_time, s, snd_strerror(err));
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return err;
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}
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err = INTERNAL(snd_pcm_hw_params_get_period_size)(params,
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&period_size, NULL);
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if (err < 0) {
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SNDERR("Unable to get period size for %s: %s",
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s, snd_strerror(err));
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return err;
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}
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}
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/* write the parameters to device */
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err = snd_pcm_hw_params(pcm, params);
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if (err < 0) {
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SNDERR("Unable to set hw params for %s: %s", s, snd_strerror(err));
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SNDERR("Unable to set hw params for %s: %s",
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s, snd_strerror(err));
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return err;
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}
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/* get the current swparams */
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err = snd_pcm_sw_params_current(pcm, swparams);
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if (err < 0) {
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SNDERR("Unable to determine current swparams for %s: %s", s, snd_strerror(err));
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SNDERR("Unable to determine current swparams for %s: %s",
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s, snd_strerror(err));
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return err;
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}
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/* start the transfer when the buffer is almost full: */
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/* (buffer_size / avail_min) * avail_min */
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err = snd_pcm_sw_params_set_start_threshold(pcm, swparams, (buffer_size / period_size) * period_size);
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/*
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* start the transfer when the buffer is almost full:
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* (buffer_size / avail_min) * avail_min
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*/
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err = snd_pcm_sw_params_set_start_threshold(pcm, swparams,
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(buffer_size / period_size) * period_size);
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if (err < 0) {
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SNDERR("Unable to set start threshold mode for %s: %s", s, snd_strerror(err));
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SNDERR("Unable to set start threshold mode for %s: %s",
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s, snd_strerror(err));
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return err;
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}
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/* allow the transfer when at least period_size samples can be processed */
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/*
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* allow the transfer when at least period_size samples can be
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* processed
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*/
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err = snd_pcm_sw_params_set_avail_min(pcm, swparams, period_size);
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if (err < 0) {
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SNDERR("Unable to set avail min for %s: %s", s, snd_strerror(err));
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SNDERR("Unable to set avail min for %s: %s",
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s, snd_strerror(err));
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return err;
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}
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/* write the parameters to the playback device */
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err = snd_pcm_sw_params(pcm, swparams);
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if (err < 0) {
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SNDERR("Unable to set sw params for %s: %s", s, snd_strerror(err));
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SNDERR("Unable to set sw params for %s: %s",
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s, snd_strerror(err));
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return err;
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}
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return 0;
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