* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston MA 02110-1301, USA.
*****************************************************************************/
-#if !defined( __LIBVLC__ )
- #error You are not libvlc or one of its plugins. You cannot include this file
-#endif
+#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" {
&& ((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
*/
/** audio output buffer */
struct aout_buffer_t
{
- byte_t * p_buffer;
+ uint8_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;
+ bool b_discontinuity; /* Set on discontinuity (for non pcm stream) */
struct aout_buffer_t * p_next;
void (*pf_release)( aout_buffer_t * );
};
-#define aout_BufferFree( p_buffer ) \
+#define aout_BufferFree( p_buffer ) do { \
if( p_buffer != NULL && (p_buffer)->i_alloc_type == AOUT_ALLOC_HEAP ) \
{ \
free( p_buffer ); \
} \
- p_buffer = NULL;
+ p_buffer = NULL; } while(0)
/* 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
+/* Max input rate factor (1/4 -> 4) */
+#define AOUT_MAX_INPUT_RATE (4)
+
/** date incrementation helper structure without long-term
* rounding errors
*/
struct aout_buffer_t * );
/** If b_error == 1, there is no mixer. */
- vlc_bool_t b_error;
+ bool 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. */
audio_date_t end_date;
};
+/* */
+typedef struct
+{
+ vout_thread_t *(*pf_request_vout)( void *,
+ vout_thread_t *, video_format_t *, bool b_recycle );
+ void *p_private;
+} aout_request_vout_t;
+
/** 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
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;
+ aout_filter_sys_t *p_sys;
+
+ bool b_in_place;
+ bool b_continuity;
+
+ void (*pf_do_work)( aout_instance_t *, aout_filter_t *,
+ aout_buffer_t *, aout_buffer_t * );
+
+ /* Owner fieldS
+ * XXX You MUST not use them directly */
+
+ /* Vout callback
+ * XXX use aout_filter_RequestVout */
+ aout_request_vout_t request_vout;
+
+ /* Private structure for the owner of the filter */
+ aout_filter_owner_sys_t *p_owner;
};
#define AOUT_RESAMPLING_NONE 0
* 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;
aout_filter_t * pp_filters[AOUT_MAX_FILTERS];
int i_nb_filters;
+ aout_filter_t * p_playback_rate_filter;
+
/* resamplers */
aout_filter_t * pp_resamplers[AOUT_MAX_FILTERS];
int i_nb_resamplers;
aout_fifo_t fifo;
/* Mixer information */
- byte_t * p_first_byte_to_mix;
+ uint8_t * p_first_byte_to_mix;
+ audio_replay_gain_t replay_gain;
+ float f_multiplier;
/* If b_restart == 1, the input pipeline will be re-created. */
- vlc_bool_t b_restart;
+ bool b_restart;
/* If b_error == 1, there is no input pipeline. */
- vlc_bool_t b_error;
+ bool b_error;
/* Did we just change the output format? (expect buffer inconsistencies) */
- vlc_bool_t b_changed;
+ bool b_changed;
- /* internal caching delay from input */
- int i_pts_delay;
- /* desynchronisation delay request by the user */
- int i_desync;
+ /* last rate from input */
+ int i_last_input_rate;
-};
+ /* */
+ int i_buffer_lost;
+
+ /* */
+ bool b_paused;
+ mtime_t i_pause_date;
+
+ /* */
+ bool b_recycle_vout;
+ aout_request_vout_t request_vout;
+ };
/** 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];
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 */
aout_output_t output;
};
+/**
+ * It describes the audio channel order VLC except.
+ */
+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
*****************************************************************************/
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_DateGet, ( const audio_date_t * ) LIBVLC_USED);
VLC_EXPORT( mtime_t, aout_DateIncrement, ( audio_date_t *, uint32_t ) );
-VLC_EXPORT( aout_buffer_t *, aout_OutputNextBuffer, ( aout_instance_t *, mtime_t, vlc_bool_t ) );
+VLC_EXPORT( aout_buffer_t *, aout_OutputNextBuffer, ( aout_instance_t *, mtime_t, bool ) LIBVLC_USED );
-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( 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_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 ));
+VLC_EXPORT( void, aout_EnableFilter, (vlc_object_t *, const char *, bool ));
#define aout_VisualNext(a) aout_VisualChange( VLC_OBJECT(a),1 )
#define aout_VisualPrev(a) aout_VisualChange( VLC_OBJECT(a),-1 )
VLC_EXPORT( char *, aout_VisualChange, (vlc_object_t *, int ) );
+/* */
+VLC_EXPORT( vout_thread_t *, aout_filter_RequestVout, ( aout_filter_t *, vout_thread_t *p_vout, video_format_t *p_fmt ) );
+
# ifdef __cplusplus
}
# endif
projects / vlc / blobdiff