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Added missing tests for hw_params->info.

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This commit is contained in:
Jaroslav Kysela 2001-07-26 13:52:43 +00:00
parent 5b41fff0be
commit a978b49127
2 changed files with 126 additions and 0 deletions
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9
include/pcm.h
View file

@ -356,6 +356,15 @@ snd_pcm_stream_t snd_pcm_stream(snd_pcm_t *pcm);
/* HW params */
int snd_pcm_hw_params_any(snd_pcm_t *pcm, snd_pcm_hw_params_t *params);
int snd_pcm_hw_params_is_mmap_sample_resolution(const snd_pcm_hw_params_t *params);
int snd_pcm_hw_params_is_double(const snd_pcm_hw_params_t *params);
int snd_pcm_hw_params_is_batch(const snd_pcm_hw_params_t *params);
int snd_pcm_hw_params_is_block_transfer(const snd_pcm_hw_params_t *params);
int snd_pcm_hw_params_is_overrange(const snd_pcm_hw_params_t *params);
int snd_pcm_hw_params_is_pause(const snd_pcm_hw_params_t *params);
int snd_pcm_hw_params_is_half_duplex(const snd_pcm_hw_params_t *params);
int snd_pcm_hw_params_is_joint_duplex(const snd_pcm_hw_params_t *params);
int snd_pcm_hw_params_is_sync_start(const snd_pcm_hw_params_t *params);
int snd_pcm_hw_params_get_rate_numden(const snd_pcm_hw_params_t *params,
unsigned int *rate_num,
unsigned int *rate_den);

117
src/pcm/pcm.c
View file

@ -1515,6 +1515,123 @@ int snd_pcm_hw_params_dump(snd_pcm_hw_params_t *params, snd_output_t *out)
return 0;
}
/**
* \brief Check, if hardware supports sample-resolution mmap for given configuration
* \param param Configuration space
* \return Boolean value
* \retval 0 Hardware doesn't support sample-resolution mmap
* \retval 1 Hardware supports sample-resolution mmap
*/
int snd_pcm_hw_params_is_mmap_sample_resolution(const snd_pcm_hw_params_t *params)
{
assert(params);
return !!(params->info & SNDRV_PCM_INFO_MMAP_VALID);
}
/**
* \brief Check, if hardware does double buffering for start/stop for given configuration
* \param param Configuration space
* \return Boolean value
* \retval 0 Hardware doesn't do double buffering for start/stop
* \retval 1 Hardware does double buffering for start/stop
*/
int snd_pcm_hw_params_is_double(const snd_pcm_hw_params_t *params)
{
assert(params);
return !!(params->info & SNDRV_PCM_INFO_DOUBLE);
}
/**
* \brief Check, if hardware does double buffering for data transfers for given configuration
* \param param Configuration space
* \return Boolean value
* \retval 0 Hardware doesn't do double buffering for data transfers
* \retval 1 Hardware does double buffering for data transfers
*/
int snd_pcm_hw_params_is_batch(const snd_pcm_hw_params_t *params)
{
assert(params);
return !!(params->info & SNDRV_PCM_INFO_BATCH);
}
/**
* \brief Check, if hardware does block transfers for samples for given configuration
* \param param Configuration space
* \return Boolean value
* \retval 0 Hardware doesn't block transfers
* \retval 1 Hardware does block transfers
*/
int snd_pcm_hw_params_is_block_transfer(const snd_pcm_hw_params_t *params)
{
assert(params);
return !!(params->info & SNDRV_PCM_INFO_BLOCK_TRANSFER);
}
/**
* \brief Check, if hardware supports overrange detection
* \param param Configuration space
* \return Boolean value
* \retval 0 Hardware doesn't support overrange detection
* \retval 1 Hardware supports overrange detection
*/
int snd_pcm_hw_params_is_overrange(const snd_pcm_hw_params_t *params)
{
assert(params);
return !!(params->info & SNDRV_PCM_INFO_OVERRANGE);
}
/**
* \brief Check, if hardware supports pause
* \param param Configuration space
* \return Boolean value
* \retval 0 Hardware doesn't support pause
* \retval 1 Hardware supports pause
*/
int snd_pcm_hw_params_is_pause(const snd_pcm_hw_params_t *params)
{
assert(params);
return !!(params->info & SNDRV_PCM_INFO_PAUSE);
}
/**
* \brief Check, if hardware does half-duplex only
* \param param Configuration space
* \return Boolean value
* \retval 0 Hardware doesn't do half-duplex
* \retval 1 Hardware does half-duplex
*/
int snd_pcm_hw_params_is_half_duplex(const snd_pcm_hw_params_t *params)
{
assert(params);
return !!(params->info & SNDRV_PCM_INFO_HALF_DUPLEX);
}
/**
* \brief Check, if hardware does joint-duplex (playback and capture are somewhat correlated)
* \param param Configuration space
* \return Boolean value
* \retval 0 Hardware doesn't do joint-duplex
* \retval 1 Hardware does joint-duplex
*/
int snd_pcm_hw_params_is_joint_duplex(const snd_pcm_hw_params_t *params)
{
assert(params);
return !!(params->info & SNDRV_PCM_INFO_JOINT_DUPLEX);
}
/**
* \brief Check, if hardware supports synchronized start with sample resolution
* \param param Configuration space
* \return Boolean value
* \retval 0 Hardware doesn't support synchronized start
* \retval 1 Hardware supports synchronized start
*/
int snd_pcm_hw_params_is_sync_start(const snd_pcm_hw_params_t *params)
{
assert(params);
return !!(params->info & SNDRV_PCM_INFO_SYNC_START);
}
/**
* \brief Get rate exact info from a configuration space
* \param params Configuration space