diff options
| author | Marcus Müller <mmueller@gnuradio.org> | 2019-08-07 21:45:12 +0200 |
|---|---|---|
| committer | Marcus Müller <marcus@hostalia.de> | 2019-08-09 23:04:28 +0200 |
| commit | f7bbf2c1d8d780294f3e016aff239ca35eb6516e (patch) | |
| tree | e09ab6112e02b2215b2d59ac24d3d6ea2edac745 /gr-audio/lib/alsa/alsa_source.h | |
| parent | 78431dc6941e3acc67c858277dfe4a0ed583643c (diff) | |
Tree: clang-format without the include sorting
Diffstat (limited to 'gr-audio/lib/alsa/alsa_source.h')
| -rw-r--r-- | gr-audio/lib/alsa/alsa_source.h | 150 |
1 files changed, 74 insertions, 76 deletions
diff --git a/gr-audio/lib/alsa/alsa_source.h b/gr-audio/lib/alsa/alsa_source.h index 61c50be754..66d349a840 100644 --- a/gr-audio/lib/alsa/alsa_source.h +++ b/gr-audio/lib/alsa/alsa_source.h @@ -33,82 +33,80 @@ #include <stdexcept> namespace gr { - namespace audio { - - class alsa_source; - typedef boost::shared_ptr<alsa_source> alsa_source_sptr; - - /*! - * \brief audio source using ALSA - * \ingroup audio_blk - * - * The source has between 1 and N input streams of floats, where N is - * depends on the hardware characteristics of the selected device. - * - * Output samples will be in the range [-1,1]. - */ - class alsa_source : public source - { - // typedef for pointer to class work method - typedef int(alsa_source::*work_t)(int noutput_items, - gr_vector_const_void_star &input_items, - gr_vector_void_star &output_items); - - unsigned int d_sampling_rate; - std::string d_device_name; - snd_pcm_t *d_pcm_handle; - snd_pcm_hw_params_t *d_hw_params; - snd_pcm_sw_params_t *d_sw_params; - snd_pcm_format_t d_format; - unsigned int d_nperiods; - unsigned int d_period_time_us; // microseconds - snd_pcm_uframes_t d_period_size; // in frames - unsigned int d_buffer_size_bytes; // sizeof of d_buffer - char *d_buffer; - work_t d_worker; // the work method to use - unsigned int d_hw_nchan; // # of configured h/w channels - bool d_special_case_stereo_to_mono; - - // random stats - int d_noverruns; // count of overruns - int d_nsuspends; // count of suspends - - void output_error_msg(const char *msg, int err); - void bail(const char *msg, int err); - - public: - alsa_source(int sampling_rate, - const std::string device_name, - bool ok_to_block); - ~alsa_source(); - - bool check_topology(int ninputs, int noutputs); - - int work(int noutput_items, - gr_vector_const_void_star &input_items, - gr_vector_void_star &output_items); - - protected: - bool read_buffer(void *buffer, unsigned nframes, unsigned sizeof_frame); - - int work_s16(int noutput_items, - gr_vector_const_void_star &input_items, - gr_vector_void_star &output_items); - - int work_s16_2x1(int noutput_items, - gr_vector_const_void_star &input_items, - gr_vector_void_star &output_items); - - int work_s32(int noutput_items, - gr_vector_const_void_star &input_items, - gr_vector_void_star &output_items); - - int work_s32_2x1(int noutput_items, - gr_vector_const_void_star &input_items, - gr_vector_void_star &output_items); - }; - - } /* namespace audio */ +namespace audio { + +class alsa_source; +typedef boost::shared_ptr<alsa_source> alsa_source_sptr; + +/*! + * \brief audio source using ALSA + * \ingroup audio_blk + * + * The source has between 1 and N input streams of floats, where N is + * depends on the hardware characteristics of the selected device. + * + * Output samples will be in the range [-1,1]. + */ +class alsa_source : public source +{ + // typedef for pointer to class work method + typedef int (alsa_source::*work_t)(int noutput_items, + gr_vector_const_void_star& input_items, + gr_vector_void_star& output_items); + + unsigned int d_sampling_rate; + std::string d_device_name; + snd_pcm_t* d_pcm_handle; + snd_pcm_hw_params_t* d_hw_params; + snd_pcm_sw_params_t* d_sw_params; + snd_pcm_format_t d_format; + unsigned int d_nperiods; + unsigned int d_period_time_us; // microseconds + snd_pcm_uframes_t d_period_size; // in frames + unsigned int d_buffer_size_bytes; // sizeof of d_buffer + char* d_buffer; + work_t d_worker; // the work method to use + unsigned int d_hw_nchan; // # of configured h/w channels + bool d_special_case_stereo_to_mono; + + // random stats + int d_noverruns; // count of overruns + int d_nsuspends; // count of suspends + + void output_error_msg(const char* msg, int err); + void bail(const char* msg, int err); + +public: + alsa_source(int sampling_rate, const std::string device_name, bool ok_to_block); + ~alsa_source(); + + bool check_topology(int ninputs, int noutputs); + + int work(int noutput_items, + gr_vector_const_void_star& input_items, + gr_vector_void_star& output_items); + +protected: + bool read_buffer(void* buffer, unsigned nframes, unsigned sizeof_frame); + + int work_s16(int noutput_items, + gr_vector_const_void_star& input_items, + gr_vector_void_star& output_items); + + int work_s16_2x1(int noutput_items, + gr_vector_const_void_star& input_items, + gr_vector_void_star& output_items); + + int work_s32(int noutput_items, + gr_vector_const_void_star& input_items, + gr_vector_void_star& output_items); + + int work_s32_2x1(int noutput_items, + gr_vector_const_void_star& input_items, + gr_vector_void_star& output_items); +}; + +} /* namespace audio */ } /* namespace gr */ #endif /* INCLUDED_AUDIO_ALSA_SOURCE_H */ |