* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston MA 02110-1301, USA.
*****************************************************************************/
-#ifndef _VLC_AOUT_H
-#define _VLC_AOUT_H 1
+
+#ifndef VLC_AOUT_H
+#define VLC_AOUT_H 1
+
+/**
+ * \file
+ * This file defines functions, structures and macros for audio output object
+ */
# ifdef __cplusplus
extern "C" {
#define AOUT_FMTS_IDENTICAL( p_first, p_second ) ( \
((p_first)->i_format == (p_second)->i_format) \
- && ((p_first)->i_rate == (p_second)->i_rate) \
- && ((p_first)->i_physical_channels == (p_second)->i_physical_channels)\
- && ((p_first)->i_original_channels == (p_second)->i_original_channels) )
+ && AOUT_FMTS_SIMILAR(p_first, p_second) )
/* Check if i_rate == i_rate and i_channels == i_channels */
#define AOUT_FMTS_SIMILAR( p_first, p_second ) ( \
&& ((p_first)->i_physical_channels == (p_second)->i_physical_channels)\
&& ((p_first)->i_original_channels == (p_second)->i_original_channels) )
-#ifdef WORDS_BIGENDIAN
-# define AOUT_FMT_S16_NE VLC_FOURCC('s','1','6','b')
-# define AOUT_FMT_U16_NE VLC_FOURCC('u','1','6','b')
-# define AOUT_FMT_S24_NE VLC_FOURCC('s','2','4','b')
-# define AOUT_FMT_SPDIF_NE VLC_FOURCC('s','p','d','b')
-#else
-# define AOUT_FMT_S16_NE VLC_FOURCC('s','1','6','l')
-# define AOUT_FMT_U16_NE VLC_FOURCC('u','1','6','l')
-# define AOUT_FMT_S24_NE VLC_FOURCC('s','2','4','l')
-# define AOUT_FMT_SPDIF_NE VLC_FOURCC('s','p','d','i')
-#endif
-
-#define AOUT_FMT_NON_LINEAR( p_format ) \
- ( ((p_format)->i_format == VLC_FOURCC('s','p','d','i')) \
- || ((p_format)->i_format == VLC_FOURCC('s','p','d','b')) \
- || ((p_format)->i_format == VLC_FOURCC('a','5','2',' ')) \
- || ((p_format)->i_format == VLC_FOURCC('d','t','s',' ')) )
+#define VLC_CODEC_SPDIFL VLC_FOURCC('s','p','d','i')
+#define VLC_CODEC_SPDIFB VLC_FOURCC('s','p','d','b')
+
+#define AOUT_FMT_NON_LINEAR( p_format ) \
+ ( ((p_format)->i_format == VLC_CODEC_SPDIFL) \
+ || ((p_format)->i_format == VLC_CODEC_SPDIFB) \
+ || ((p_format)->i_format == VLC_CODEC_A52) \
+ || ((p_format)->i_format == VLC_CODEC_DTS) )
/* This is heavily borrowed from libmad, by Robert Leslie <rob@mars.org> */
/*
#define FIXED32_MAX ((vlc_fixed_t) +0x7fffffffL)
#define FIXED32_ONE ((vlc_fixed_t) 0x10000000)
-
/*
* Channels descriptions
*/
* Main audio output structures
*****************************************************************************/
-/** audio output buffer */
-struct aout_buffer_t
-{
- byte_t * p_buffer;
- int i_alloc_type;
- /* i_size is the real size of the buffer (used for debug ONLY), i_nb_bytes
- * is the number of significative bytes in it. */
- size_t i_size, i_nb_bytes;
- unsigned int i_nb_samples;
- mtime_t start_date, end_date;
-
- struct aout_buffer_t * p_next;
-
- /** Private data (aout_buffer_t will disappear soon so no need for an
- * aout_buffer_sys_t type) */
- void * p_sys;
-
- /** This way the release can be overloaded */
- void (*pf_release)( aout_buffer_t * );
-};
-
-#define aout_BufferFree( p_buffer ) \
- if( p_buffer != NULL && (p_buffer)->i_alloc_type == AOUT_ALLOC_HEAP ) \
- { \
- free( p_buffer ); \
- } \
- p_buffer = NULL;
+#define aout_BufferFree( buffer ) block_Release( buffer )
/* Size of a frame for S/PDIF output. */
#define AOUT_SPDIF_SIZE 6144
/* Number of samples in an A/52 frame. */
#define A52_FRAME_NB 1536
-/** date incrementation helper structure without long-term
- * rounding errors
- */
-struct audio_date_t
-{
- mtime_t date;
- uint32_t i_divider;
- uint32_t i_remainder;
-};
+/* Max input rate factor (1/4 -> 4) */
+#define AOUT_MAX_INPUT_RATE (4)
/** allocation of memory in the audio output */
typedef struct aout_alloc_t
{
- int i_alloc_type;
+ bool b_alloc;
int i_bytes_per_sec;
} aout_alloc_t;
-#define AOUT_ALLOC_NONE 0
-#define AOUT_ALLOC_STACK 1
-#define AOUT_ALLOC_HEAP 2
-
-/** audio output mixer */
-typedef struct aout_mixer_t
-{
- audio_sample_format_t mixer;
- aout_alloc_t output_alloc;
-
- module_t * p_module;
- struct aout_mixer_sys_t * p_sys;
- void (* pf_do_work)( struct aout_instance_t *,
- struct aout_buffer_t * );
-
- /** If b_error == 1, there is no mixer. */
- vlc_bool_t b_error;
- /** Multiplier used to raise or lower the volume of the sound in
- * software. Beware, this creates sound distortion and should be avoided
- * as much as possible. This isn't available for non-float32 mixer. */
- float f_multiplier;
-} aout_mixer_t;
-
/** audio output buffer FIFO */
struct aout_fifo_t
{
aout_buffer_t * p_first;
aout_buffer_t ** pp_last;
- audio_date_t end_date;
+ date_t end_date;
};
+/* FIXME to remove once aout.h is cleaned a bit more */
+#include <vlc_aout_mixer.h>
+#include <vlc_block.h>
+
/** audio output filter */
+typedef struct aout_filter_owner_sys_t aout_filter_owner_sys_t;
+typedef struct aout_filter_sys_t aout_filter_sys_t;
struct aout_filter_t
{
VLC_COMMON_MEMBERS
- audio_sample_format_t input;
- audio_sample_format_t output;
- aout_alloc_t output_alloc;
-
module_t * p_module;
- struct aout_filter_sys_t * p_sys;
- void (* pf_do_work)( struct aout_instance_t *,
- struct aout_filter_t *,
- struct aout_buffer_t *,
- struct aout_buffer_t * );
- vlc_bool_t b_in_place;
- vlc_bool_t b_continuity;
-};
-
-#define AOUT_RESAMPLING_NONE 0
-#define AOUT_RESAMPLING_UP 1
-#define AOUT_RESAMPLING_DOWN 2
-/** an input stream for the audio output */
-struct aout_input_t
-{
- /* When this lock is taken, the pipeline cannot be changed by a
- * third-party. */
- vlc_mutex_t lock;
-
- /* The input thread that spawned this input */
- input_thread_t *p_input_thread;
-
- audio_sample_format_t input;
- aout_alloc_t input_alloc;
-
- /* pre-filters */
- aout_filter_t * pp_filters[AOUT_MAX_FILTERS];
- int i_nb_filters;
-
- /* resamplers */
- aout_filter_t * pp_resamplers[AOUT_MAX_FILTERS];
- int i_nb_resamplers;
- int i_resampling_type;
- mtime_t i_resamp_start_date;
- int i_resamp_start_drift;
-
- aout_fifo_t fifo;
-
- /* Mixer information */
- byte_t * p_first_byte_to_mix;
+ aout_filter_sys_t *p_sys;
- /* If b_restart == 1, the input pipeline will be re-created. */
- vlc_bool_t b_restart;
+ es_format_t fmt_in;
+ es_format_t fmt_out;
- /* If b_error == 1, there is no input pipeline. */
- vlc_bool_t b_error;
+ aout_alloc_t output_alloc;
- /* Did we just change the output format? (expect buffer inconsistencies) */
- vlc_bool_t b_changed;
+ bool b_in_place;
- /* internal caching delay from input */
- int i_pts_delay;
- /* desynchronisation delay request by the user */
- int i_desync;
+ void (*pf_do_work)( aout_instance_t *, aout_filter_t *,
+ aout_buffer_t *, aout_buffer_t * );
+ /* Private structure for the owner of the filter */
+ aout_filter_owner_sys_t *p_owner;
};
+#define AOUT_RESAMPLING_NONE 0
+#define AOUT_RESAMPLING_UP 1
+#define AOUT_RESAMPLING_DOWN 2
+
/** an output stream for the audio output */
typedef struct aout_output_t
{
audio_sample_format_t output;
/* Indicates whether the audio output is currently starving, to avoid
* printing a 1,000 "output is starving" messages. */
- vlc_bool_t b_starving;
+ bool b_starving;
/* post-filters */
- aout_filter_t * pp_filters[AOUT_MAX_FILTERS];
+ filter_t * pp_filters[AOUT_MAX_FILTERS];
int i_nb_filters;
aout_fifo_t fifo;
void (* pf_play)( aout_instance_t * );
int (* pf_volume_get )( aout_instance_t *, audio_volume_t * );
int (* pf_volume_set )( aout_instance_t *, audio_volume_t );
- int (* pf_volume_infos )( aout_instance_t *, audio_volume_t * );
int i_nb_samples;
/* Current volume for the output - it's just a placeholder, the plug-in
audio_volume_t i_volume;
/* If b_error == 1, there is no audio output pipeline. */
- vlc_bool_t b_error;
+ bool b_error;
} aout_output_t;
/** audio output thread descriptor */
/* When output_fifo_lock is taken, the p_aout->output.fifo structure
* cannot be read or written by a third-party thread. */
vlc_mutex_t output_fifo_lock;
+ /* volume_vars_lock is taken */
+ vlc_mutex_t volume_vars_lock;
/* Input streams & pre-filters */
aout_input_t * pp_inputs[AOUT_MAX_INPUTS];
int i_nb_inputs;
/* Mixer */
- aout_mixer_t mixer;
+ audio_sample_format_t mixer_format;
+ aout_alloc_t mixer_allocation;
+ float mixer_multiplier;
+ aout_mixer_t *p_mixer;
/* Output plug-in */
aout_output_t output;
};
+/**
+ * It describes the audio channel order VLC expect.
+ */
+static const uint32_t pi_vlc_chan_order_wg4[] =
+{
+ AOUT_CHAN_LEFT, AOUT_CHAN_RIGHT,
+ AOUT_CHAN_MIDDLELEFT, AOUT_CHAN_MIDDLERIGHT,
+ AOUT_CHAN_REARLEFT, AOUT_CHAN_REARRIGHT, AOUT_CHAN_REARCENTER,
+ AOUT_CHAN_CENTER, AOUT_CHAN_LFE, 0
+};
+
/*****************************************************************************
* Prototypes
*****************************************************************************/
-/* From common.c : */
-VLC_EXPORT( void, aout_DateInit, ( audio_date_t *, uint32_t ) );
-VLC_EXPORT( void, aout_DateSet, ( audio_date_t *, mtime_t ) );
-VLC_EXPORT( void, aout_DateMove, ( audio_date_t *, mtime_t ) );
-VLC_EXPORT( mtime_t, aout_DateGet, ( const audio_date_t * ) );
-VLC_EXPORT( mtime_t, aout_DateIncrement, ( audio_date_t *, uint32_t ) );
+VLC_EXPORT( aout_buffer_t *, aout_OutputNextBuffer, ( aout_instance_t *, mtime_t, bool ) LIBVLC_USED );
-VLC_EXPORT( aout_buffer_t *, aout_OutputNextBuffer, ( aout_instance_t *, mtime_t, vlc_bool_t ) );
-
-VLC_EXPORT( int, aout_CheckChannelReorder, ( const uint32_t *, const uint32_t *, uint32_t, int, int * ) );
+/**
+ * This function computes the reordering needed to go from pi_chan_order_in to
+ * pi_chan_order_out.
+ * If pi_chan_order_in or pi_chan_order_out is NULL, it will assume that vlc
+ * internal (WG4) order is requested.
+ */
+VLC_EXPORT( int, aout_CheckChannelReorder, ( const uint32_t *pi_chan_order_in, const uint32_t *pi_chan_order_out, uint32_t i_channel_mask, int i_channels, int *pi_chan_table ) );
VLC_EXPORT( void, aout_ChannelReorder, ( uint8_t *, int, int, const int *, int ) );
-VLC_EXPORT( unsigned int, aout_FormatNbChannels, ( const audio_sample_format_t * p_format ) );
+/**
+ * This fonction will compute the extraction parameter into pi_selection to go
+ * from i_channels with their type given by pi_order_src[] into the order
+ * describe by pi_order_dst.
+ * It will also set :
+ * - *pi_channels as the number of channels that will be extracted which is
+ * lower (in case of non understood channels type) or equal to i_channels.
+ * - the layout of the channels (*pi_layout).
+ *
+ * It will return true if channel extraction is really needed, in which case
+ * aout_ChannelExtract must be used
+ *
+ * XXX It must be used when the source may have channel type not understood
+ * by VLC. In this case the channel type pi_order_src[] must be set to 0.
+ * XXX It must also be used if multiple channels have the same type.
+ */
+VLC_EXPORT( bool, aout_CheckChannelExtraction, ( int *pi_selection, uint32_t *pi_layout, int *pi_channels, const uint32_t pi_order_dst[AOUT_CHAN_MAX], const uint32_t *pi_order_src, int i_channels ) );
+
+/**
+ * Do the actual channels extraction using the parameters created by
+ * aout_CheckChannelExtraction.
+ *
+ * XXX this function does not work in place (p_dst and p_src must not overlap).
+ * XXX Only 8, 16, 24, 32, 64 bits per sample are supported.
+ */
+VLC_EXPORT( void, aout_ChannelExtract, ( void *p_dst, int i_dst_channels, const void *p_src, int i_src_channels, int i_sample_count, const int *pi_selection, int i_bits_per_sample ) );
+
+/* */
+VLC_EXPORT( unsigned int, aout_FormatNbChannels, ( const audio_sample_format_t * p_format ) LIBVLC_USED );
+VLC_EXPORT( unsigned int, aout_BitsPerSample, ( vlc_fourcc_t i_format ) LIBVLC_USED );
VLC_EXPORT( void, aout_FormatPrepare, ( audio_sample_format_t * p_format ) );
VLC_EXPORT( void, aout_FormatPrint, ( aout_instance_t * p_aout, const char * psz_text, const audio_sample_format_t * p_format ) );
-VLC_EXPORT( const char *, aout_FormatPrintChannels, ( const audio_sample_format_t * ) );
+VLC_EXPORT( const char *, aout_FormatPrintChannels, ( const audio_sample_format_t * ) LIBVLC_USED );
-VLC_EXPORT( mtime_t, aout_FifoFirstDate, ( aout_instance_t *, aout_fifo_t * ) );
-VLC_EXPORT( aout_buffer_t *, aout_FifoPop, ( aout_instance_t * p_aout, aout_fifo_t * p_fifo ) );
+VLC_EXPORT( mtime_t, aout_FifoFirstDate, ( aout_instance_t *, aout_fifo_t * ) LIBVLC_USED );
+VLC_EXPORT( aout_buffer_t *, aout_FifoPop, ( aout_instance_t * p_aout, aout_fifo_t * p_fifo ) LIBVLC_USED );
/* From intf.c : */
VLC_EXPORT( void, aout_VolumeSoftInit, ( aout_instance_t * ) );
VLC_EXPORT( void, aout_VolumeNoneInit, ( aout_instance_t * ) );
-#define aout_VolumeGet(a, b) __aout_VolumeGet(VLC_OBJECT(a), b)
-VLC_EXPORT( int, __aout_VolumeGet, ( vlc_object_t *, audio_volume_t * ) );
-#define aout_VolumeSet(a, b) __aout_VolumeSet(VLC_OBJECT(a), b)
-VLC_EXPORT( int, __aout_VolumeSet, ( vlc_object_t *, audio_volume_t ) );
-#define aout_VolumeInfos(a, b) __aout_VolumeInfos(VLC_OBJECT(a), b)
-VLC_EXPORT( int, __aout_VolumeInfos, ( vlc_object_t *, audio_volume_t * ) );
-#define aout_VolumeUp(a, b, c) __aout_VolumeUp(VLC_OBJECT(a), b, c)
-VLC_EXPORT( int, __aout_VolumeUp, ( vlc_object_t *, int, audio_volume_t * ) );
-#define aout_VolumeDown(a, b, c) __aout_VolumeDown(VLC_OBJECT(a), b, c)
-VLC_EXPORT( int, __aout_VolumeDown, ( vlc_object_t *, int, audio_volume_t * ) );
-#define aout_VolumeMute(a, b) __aout_VolumeMute(VLC_OBJECT(a), b)
-VLC_EXPORT( int, __aout_VolumeMute, ( vlc_object_t *, audio_volume_t * ) );
-VLC_EXPORT( int, aout_Restart, ( aout_instance_t * p_aout ) );
+VLC_EXPORT( int, aout_VolumeGet, ( vlc_object_t *, audio_volume_t * ) );
+#define aout_VolumeGet(a, b) aout_VolumeGet(VLC_OBJECT(a), b)
+VLC_EXPORT( int, aout_VolumeSet, ( vlc_object_t *, audio_volume_t ) );
+#define aout_VolumeSet(a, b) aout_VolumeSet(VLC_OBJECT(a), b)
+VLC_EXPORT( int, aout_VolumeUp, ( vlc_object_t *, int, audio_volume_t * ) );
+#define aout_VolumeUp(a, b, c) aout_VolumeUp(VLC_OBJECT(a), b, c)
+VLC_EXPORT( int, aout_VolumeDown, ( vlc_object_t *, int, audio_volume_t * ) );
+#define aout_VolumeDown(a, b, c) aout_VolumeDown(VLC_OBJECT(a), b, c)
+VLC_EXPORT( int, aout_ToggleMute, ( vlc_object_t *, audio_volume_t * ) );
+#define aout_ToggleMute(a, b) aout_ToggleMute(VLC_OBJECT(a), b)
+VLC_EXPORT( int, aout_SetMute, ( vlc_object_t *, audio_volume_t *, bool ) );
+VLC_EXPORT( bool, aout_IsMuted, ( vlc_object_t * ) );
VLC_EXPORT( int, aout_FindAndRestart, ( vlc_object_t *, const char *, vlc_value_t, vlc_value_t, void * ) );
VLC_EXPORT( int, aout_ChannelsRestart, ( vlc_object_t *, const char *, vlc_value_t, vlc_value_t, void * ) );
-VLC_EXPORT( void, aout_EnableFilter, (vlc_object_t *, const char *, vlc_bool_t ));
-
-#define aout_VisualNext(a) aout_VisualChange( VLC_OBJECT(a),1 )
-#define aout_VisualPrev(a) aout_VisualChange( VLC_OBJECT(a),-1 )
+VLC_EXPORT( void, aout_EnableFilter, (vlc_object_t *, const char *, bool ));
+#define aout_EnableFilter( o, n, b ) \
+ aout_EnableFilter( VLC_OBJECT(o), n, b )
-VLC_EXPORT( char *, aout_VisualChange, (vlc_object_t *, int ) );
+/* */
+VLC_EXPORT( vout_thread_t *, aout_filter_RequestVout, ( filter_t *, vout_thread_t *p_vout, video_format_t *p_fmt ) LIBVLC_USED );
# ifdef __cplusplus
}
projects / vlc / blobdiff