Include dependency graph for output.c:

Functions
int	aout_OutputNew (audio_output_t p_aout, const audio_sample_format_t p_format)
void	aout_OutputDelete (audio_output_t *aout)
	Destroys the audio output plug-in instance.
void	aout_OutputPlay (audio_output_t aout, block_t block)
	Plays a decoded audio buffer.
void	aout_OutputPause (audio_output_t *aout, bool pause, mtime_t date)
	Notifies the audio output (if any) of pause/resume events.
void	aout_OutputFlush (audio_output_t *aout, bool wait)
	Flushes or drains the audio output buffers.
static int	aout_VolumeNoneSet (audio_output_t *aout, float volume, bool mute)
	Dummy volume setter.
void	aout_VolumeNoneInit (audio_output_t *aout)
	Configures the dummy volume setter.
static int	aout_VolumeSoftSet (audio_output_t *aout, float volume, bool mute)
	Volume setter for software volume.
void	aout_VolumeSoftInit (audio_output_t *aout)
	Configures the volume setter for software mixing and apply the default volume.
void	aout_VolumeHardInit (audio_output_t *aout, aout_volume_cb setter)
	Configures a custom volume setter.
void	aout_VolumeHardSet (audio_output_t *aout, float volume, bool mute)
	Supply or update the current custom ("hardware") volume.

Function Documentation

void aout_OutputDelete ( audio_output_t * aout )

Destroys the audio output plug-in instance.

References aout_assert_locked, aout_FiltersDestroyPipeline(), aout_owner(), aout_VolumeNoneInit(), aout_owner_t::filters, aout_owner_t::module, module_unneed, aout_owner_t::nb_filters, audio_output::pf_flush, audio_output::pf_pause, and audio_output::pf_play.

Referenced by aout_CheckRestart(), aout_DecNew(), and aout_Shutdown().

void aout_OutputFlush	(	audio_output_t *	aout,
		bool	wait
	)

Flushes or drains the audio output buffers.

This enables the output to expedite seek and stop.

Parameters:

wait

if true, wait for buffer playback (i.e. drain), if false, discard the buffers immediately (i.e. flush)

References aout_assert_locked, and audio_output::pf_flush.

Referenced by aout_DecFlush(), aout_DecIsEmpty(), and aout_InputPlay().

int aout_OutputNew	(	audio_output_t *	p_aout,
		const audio_sample_format_t *	p_format
	)

References _, aout_assert_locked, AOUT_CHAN_CENTER, AOUT_CHAN_DOLBYSTEREO, AOUT_CHAN_DUALMONO, AOUT_CHAN_LEFT, AOUT_CHAN_PHYSMASK, AOUT_CHAN_RIGHT, aout_ChannelsRestart(), aout_FiltersCreatePipeline, AOUT_FMT_LINEAR, aout_FormatPrepare(), aout_FormatPrint, aout_owner(), AOUT_VAR_CHAN_DOLBYS, AOUT_VAR_CHAN_LEFT, AOUT_VAR_CHAN_RIGHT, AOUT_VAR_CHAN_RSTEREO, AOUT_VAR_CHAN_STEREO, aout_owner_t::filters, audio_output::format, HAVE_FPU, audio_format_t::i_bitspersample, audio_format_t::i_format, vlc_value_t::i_int, audio_format_t::i_original_channels, audio_format_t::i_physical_channels, aout_owner_t::mixer_format, aout_owner_t::module, module_need, module_unneed, msg_Err, aout_owner_t::nb_filters, vlc_value_t::psz_string, text, var_AddCallback, var_Change, var_Create, var_InheritInteger, var_SetInteger, var_TriggerCallback, var_Type, VLC_VAR_ADDCHOICE, VLC_VAR_HASCHOICE, VLC_VAR_INTEGER, and VLC_VAR_SETTEXT.

Referenced by aout_CheckRestart(), and aout_DecNew().

void aout_OutputPause	(	audio_output_t *	aout,
		bool	pause,
		mtime_t	date
	)

Notifies the audio output (if any) of pause/resume events.

This enables the output to expedite pause, instead of waiting for its buffers to drain.

References aout_assert_locked, and audio_output::pf_pause.

Referenced by aout_DecChangePause().

void aout_OutputPlay	(	audio_output_t *	aout,
		block_t *	block
	)

Plays a decoded audio buffer.

References aout_assert_locked, aout_FiltersPlay(), aout_owner(), block_Release(), aout_owner_t::filters, block_t::i_buffer, aout_owner_t::nb_filters, and audio_output::pf_play.

Referenced by aout_DecPlay().

void aout_VolumeHardInit	(	audio_output_t *	aout,
		aout_volume_cb	setter
	)

Configures a custom volume setter.

This is used by audio outputs that can control the hardware volume directly and/or emulate it internally.

Parameters:

setter

volume setter callback

References aout_assert_locked, audio_output::pf_volume_set, var_Create, VLC_VAR_BOOL, VLC_VAR_DOINHERIT, and VLC_VAR_INTEGER.

void aout_VolumeHardSet	(	audio_output_t *	aout,
		float	volume,
		bool	mute
	)

Supply or update the current custom ("hardware") volume.

Note:: This only makes sense after calling aout_VolumeHardInit().

Parameters:

	setter	volume setter callback
	volume	current custom volume
	mute	current mute flag

Warning:: The caller (i.e. the audio output plug-in) is responsible for interlocking and synchronizing call to this function and to the audio_output_t.pf_volume_set callback. This ensures that VLC gets correct volume information (possibly with a latency).

References AOUT_VOLUME_DEFAULT, var_SetBool, var_SetInteger, and var_TriggerCallback.

void aout_VolumeNoneInit ( audio_output_t * aout )

Configures the dummy volume setter.

Note:: Audio output plugins for which volume is irrelevant should call this function during activation.

References audio_output::pf_volume_set, and var_Destroy.

Referenced by aout_New(), and aout_OutputDelete().

static int aout_VolumeNoneSet	(	audio_output_t *	aout,
		float	volume,
		bool	mute
	)			`[static]`

Dummy volume setter.

This is the default volume setter.

void aout_VolumeSoftInit ( audio_output_t * aout )

Configures the volume setter for software mixing and apply the default volume.

Note:: Audio output plugins that cannot apply the volume should call this function during activation.

References aout_assert_locked, AOUT_VOLUME_DEFAULT, aout_VolumeSoftSet(), audio_output::pf_volume_set, var_InheritBool, and var_InheritInteger.

static int aout_VolumeSoftSet	(	audio_output_t *	aout,
		float	volume,
		bool	mute
	)			`[static]`

Volume setter for software volume.

References aout_assert_locked, aout_owner(), aout_owner_t::multiplier, and aout_owner_t::volume.

Referenced by aout_VolumeSoftInit().

output.c File Reference

Functions

Function Documentation