alsa.c File Reference

Include dependency graph for alsa.c:

Data Structures
struct	demux_sys_t
Defines
#define	ALSA_PCM_NEW_HW_PARAMS_API
#define	ALSA_PCM_NEW_SW_PARAMS_API
#define	STEREO_TEXT   N_( "Stereo" )
#define	STEREO_LONGTEXT
#define	SAMPLERATE_TEXT   N_( "Samplerate" )
#define	SAMPLERATE_LONGTEXT
#define	CACHING_TEXT   N_("Caching value in ms")
#define	CACHING_LONGTEXT
#define	HELP_TEXT
#define	ALSA_DEFAULT   "hw"
#define	CFG_PREFIX   "alsa-"
Functions
static int	DemuxOpen (vlc_object_t *)
static void	DemuxClose (vlc_object_t *)
int	vlc_entry__main (module_t *p_module)
const char *	vlc_entry_license__main (void)
static int	DemuxControl (demux_t *, int, va_list)
static int	Demux (demux_t *)
static block_t *	GrabAudio (demux_t *p_demux)
static int	OpenAudioDev (demux_t *, const char *)
static bool	ProbeAudioDevAlsa (demux_t *, const char *)
static char *	ListAvailableDevices (demux_t *, bool b_probe)
static int	FindMainDevice (demux_t *p_demux, const char *psz_device)
static int	OpenAudioDevAlsa (demux_t *p_demux, const char *psz_device)

---

Define Documentation

#define ALSA_DEFAULT   "hw"

Referenced by FindMainDevice().

#define ALSA_PCM_NEW_HW_PARAMS_API

#define ALSA_PCM_NEW_SW_PARAMS_API

#define CACHING_LONGTEXT

Value:

N_( \
    "Caching value for Alsa captures. This " \
    "value should be set in milliseconds." )

#define CACHING_TEXT   N_("Caching value in ms")

#define CFG_PREFIX   "alsa-"

Referenced by __mosaic_ParseSetOffsets(), AccessOpen(), Activate(), Add(), AtmoSettingsCallback(), Callback(), ControlListPrint(), Create(), CreateFilter(), DemuxOpen(), Destroy(), EraseCallback(), FilterCallback(), OpenCommon(), OpenFilter(), and PuzzleCallback().

#define HELP_TEXT

Value:

N_( \
    "Use alsa:// to open the default audio input. If multiple audio " \
    "inputs are available, they will be listed in the vlc debug output. " \
    "To select hw:0,1 , use alsa://hw:0,1 ." )

#define SAMPLERATE_LONGTEXT

Value:

N_( \
    "Samplerate of the captured audio stream, in Hz (eg: 11025, 22050, 44100, 48000)" )

#define SAMPLERATE_TEXT   N_( "Samplerate" )

#define STEREO_LONGTEXT

Value:

N_( \
    "Capture the audio stream in stereo." )

#define STEREO_TEXT   N_( "Stereo" )

---

Function Documentation

static int Demux

(

demux_t *

p_demux

)

[static]

References es_out_Control(), es_out_Send(), ES_OUT_SET_PCR, GrabAudio(), demux_sys_t::i_next_demux_date, block_t::i_pts, demux_t::out, demux_sys_t::p_alsa_pcm, demux_sys_t::p_es, demux_t::p_sys, and p_sys.

Referenced by DemuxOpen(), Import_DVB(), Import_GVP(), Import_IFO(), Import_LuaPlaylist(), Import_podcast(), Import_QTL(), Import_Shoutcast(), Open(), OpenCommon(), and OpenDemux().

static void DemuxClose

(

vlc_object_t *

p_this

)

[static]

References block_Release(), demux_sys_t::p_alsa_pcm, demux_sys_t::p_block, demux_t::p_sys, and p_sys.

Referenced by DemuxOpen().

static int DemuxControl	(	demux_t *	p_demux,
		int	i_query,
		va_list	args
	)			[static]

References DEMUX_CAN_CONTROL_PACE, DEMUX_CAN_PAUSE, DEMUX_CAN_SEEK, DEMUX_GET_PTS_DELAY, DEMUX_GET_TIME, DEMUX_SET_NEXT_DEMUX_TIME, DEMUX_SET_PAUSE_STATE, demux_sys_t::i_cache, demux_sys_t::i_next_demux_date, mdate(), demux_t::p_sys, p_sys, VLC_EGENERIC, and VLC_SUCCESS.

Referenced by ControlPause(), DemuxOpen(), and OpenDemux().

static int DemuxOpen

(

vlc_object_t *

p_this

)

[static]

References demux_sys_t::b_stereo, CFG_PREFIX, Demux(), DemuxClose(), DemuxControl(), FindMainDevice(), demux_sys_t::i_cache, demux_sys_t::i_next_demux_date, demux_sys_t::i_sample_rate, demux_t::i_seekpoint, demux_t::i_title, demux_t::i_update, demux_t::info, ListAvailableDevices(), demux_sys_t::p_block, demux_sys_t::p_es, demux_t::p_sys, p_sys, demux_t::pf_control, demux_t::pf_demux, demux_t::psz_access, demux_t::psz_path, var_CreateGetBool, var_CreateGetInteger, VLC_EGENERIC, VLC_ENOMEM, and VLC_SUCCESS.

static int FindMainDevice	(	demux_t *	p_demux,
		const char *	psz_device
	)			[static]

References ALSA_DEFAULT, ListAvailableDevices(), msg_Dbg, OpenAudioDev(), demux_sys_t::p_alsa_pcm, demux_t::p_sys, ProbeAudioDevAlsa(), VLC_EGENERIC, and VLC_SUCCESS.

Referenced by AccessOpen(), and DemuxOpen().

static block_t * GrabAudio

(

demux_t *

p_demux

)

[static]

References demux_sys_t::b_stereo, block_New, demux_sys_t::i_alsa_chunk_size, demux_sys_t::i_alsa_frame_size, block_t::i_buffer, block_t::i_dts, demux_sys_t::i_max_frame_size, block_t::i_pts, demux_sys_t::i_sample_rate, mdate(), msg_Err, msg_Warn, demux_sys_t::p_alsa_pcm, demux_sys_t::p_block, block_t::p_buffer, demux_t::p_sys, and p_sys.

Referenced by Demux().

static char * ListAvailableDevices	(	demux_t *	p_demux,
		bool	b_probe
	)			[static]

References asprintf(), msg_Dbg, and ProbeAudioDevAlsa().

Referenced by DemuxOpen(), and FindMainDevice().

static int OpenAudioDev	(	demux_t *	p_demux,
		const char *	psz_device
	)			[static]

References es_format_t::audio, AUDIO_ES, demux_sys_t::b_stereo, es_format_Init(), es_out_Add(), es_format_t::i_bitrate, audio_format_t::i_bitspersample, audio_format_t::i_blockalign, audio_format_t::i_channels, audio_format_t::i_rate, demux_sys_t::i_sample_rate, msg_Dbg, OpenAudioDevAlsa(), demux_t::out, demux_sys_t::p_es, demux_t::p_sys, p_sys, VLC_EGENERIC, VLC_FOURCC, and VLC_SUCCESS.

Referenced by FindMainDevice(), and Open().

static int OpenAudioDevAlsa	(	demux_t *	p_demux,
		const char *	psz_device
	)			[static]

References demux_sys_t::b_stereo, demux_sys_t::i_alsa_chunk_size, demux_sys_t::i_alsa_frame_size, demux_sys_t::i_max_frame_size, demux_sys_t::i_sample_rate, msg_Err, msg_Warn, demux_sys_t::p_alsa_pcm, demux_t::p_sys, p_sys, VLC_EGENERIC, and VLC_SUCCESS.

Referenced by OpenAudioDev().

static bool ProbeAudioDevAlsa	(	demux_t *	p_demux,
		const char *	psz_device
	)			[static]

References msg_Err.

Referenced by FindMainDevice(), and ListAvailableDevices().

int vlc_entry__main

(

module_t *

p_module

)

const char* vlc_entry_license__main

(

void

)