/*****************************************************************************
* speex.c: speex decoder/packetizer/encoder module making use of libspeex.
*****************************************************************************
- * Copyright (C) 2003 the VideoLAN team
+ * Copyright (C) 2003-2008 the VideoLAN team
* $Id$
*
* Authors: Gildas Bazin <gbazin@videolan.org>
# include "config.h"
#endif
-#include <vlc/vlc.h>
+#include <vlc_common.h>
#include <vlc_plugin.h>
#include <vlc_input.h>
#include <vlc_codec.h>
#include <assert.h>
+/*****************************************************************************
+ * Module descriptor
+ *****************************************************************************/
+static int OpenDecoder ( vlc_object_t * );
+static int OpenPacketizer( vlc_object_t * );
+static void CloseDecoder ( vlc_object_t * );
+static int OpenEncoder ( vlc_object_t * );
+static void CloseEncoder ( vlc_object_t * );
+
+#define ENC_CFG_PREFIX "sout-speex-"
+
+#define ENC_MODE_TEXT N_("Mode" )
+#define ENC_MODE_LONGTEXT N_( \
+ "Enforce the mode of the encoder." )
+
+#define ENC_QUALITY_TEXT N_("Encoding quality")
+#define ENC_QUALITY_LONGTEXT N_( \
+ "Enforce a quality between 0 (low) and 10 (high)." )
+
+#define ENC_COMPLEXITY_TEXT N_("Encoding complexity" )
+#define ENC_COMPLEXITY_LONGTEXT N_( \
+ "Enforce the complexity of the encoder." )
+
+#define ENC_MAXBITRATE_TEXT N_( "Maximal bitrate" )
+#define ENC_MAXBITRATE_LONGTEXT N_( \
+ "Enforce the maximal VBR bitrate" )
+
+#define ENC_CBR_TEXT N_( "CBR encoding" )
+#define ENC_CBR_LONGTEXT N_( \
+ "Enforce a constant bitrate encoding (CBR) instead of default " \
+ "variable bitrate encoding (VBR)." )
+
+#define ENC_VAD_TEXT N_( "Voice activity detection" )
+#define ENC_VAD_LONGTEXT N_( \
+ "Enable voice activity detection (VAD). It is automatically " \
+ "activated in VBR mode." )
+
+#define ENC_DTX_TEXT N_( "Discontinuous Transmission" )
+#define ENC_DTX_LONGTEXT N_( \
+ "Enable discontinuous transmission (DTX)." )
+
+static const int pi_enc_mode_values[] = { 0, 1, 2 };
+static const char * const ppsz_enc_mode_descriptions[] = {
+ N_("Narrow-band (8kHz)"), N_("Wide-band (16kHz)"), N_("Ultra-wideband (32kHz)"), NULL
+};
+
+vlc_module_begin ()
+ set_category( CAT_INPUT )
+ set_subcategory( SUBCAT_INPUT_ACODEC )
+
+ set_description( N_("Speex audio decoder") )
+ set_capability( "decoder", 100 )
+ set_callbacks( OpenDecoder, CloseDecoder )
+
+ add_submodule ()
+ set_description( N_("Speex audio packetizer") )
+ set_capability( "packetizer", 100 )
+ set_callbacks( OpenPacketizer, CloseDecoder )
+
+ add_submodule ()
+ set_description( N_("Speex audio encoder") )
+ set_capability( "encoder", 100 )
+ set_callbacks( OpenEncoder, CloseEncoder )
+
+ add_integer( ENC_CFG_PREFIX "mode", 0, NULL, ENC_MODE_TEXT,
+ ENC_MODE_LONGTEXT, false );
+ change_integer_list( pi_enc_mode_values, ppsz_enc_mode_descriptions, NULL );
+
+ add_integer( ENC_CFG_PREFIX "complexity", 3, NULL, ENC_COMPLEXITY_TEXT,
+ ENC_COMPLEXITY_LONGTEXT, false );
+ change_integer_range( 1, 10 )
+
+ add_bool( ENC_CFG_PREFIX "cbr", false, NULL, ENC_CBR_TEXT,
+ ENC_CBR_LONGTEXT, false );
+
+ add_float( ENC_CFG_PREFIX "quality", 8.0, NULL, ENC_QUALITY_TEXT,
+ ENC_QUALITY_LONGTEXT, false );
+ change_float_range( 0.0, 10.0 )
+
+ add_integer( ENC_CFG_PREFIX "max-bitrate", 0, NULL, ENC_MAXBITRATE_TEXT,
+ ENC_MAXBITRATE_LONGTEXT, false );
+
+ add_bool( ENC_CFG_PREFIX "vad", true, NULL, ENC_VAD_TEXT,
+ ENC_VAD_LONGTEXT, false );
+
+ add_bool( ENC_CFG_PREFIX "dtx", false, NULL, ENC_DTX_TEXT,
+ ENC_DTX_LONGTEXT, false );
+
+ /* TODO agc, noise suppression, */
+
+vlc_module_end ()
+
+static const char *const ppsz_enc_options[] = {
+ "mode", "complexity", "cbr", "quality", "max-bitrate", "vad", "dtx", NULL
+};
+
/*****************************************************************************
* decoder_sys_t : speex decoder descriptor
*****************************************************************************/
};
-static int pi_channels_maps[6] =
+static const int pi_channels_maps[6] =
{
0,
AOUT_CHAN_CENTER, AOUT_CHAN_LEFT | AOUT_CHAN_RIGHT,
/****************************************************************************
* Local prototypes
****************************************************************************/
-static int OpenDecoder ( vlc_object_t * );
-static int OpenPacketizer( vlc_object_t * );
-static void CloseDecoder ( vlc_object_t * );
static void *DecodeBlock ( decoder_t *, block_t ** );
static aout_buffer_t *DecodeRtpSpeexPacket( decoder_t *, block_t **);
static void ParseSpeexComments( decoder_t *, ogg_packet * );
-static int OpenEncoder ( vlc_object_t * );
-static void CloseEncoder ( vlc_object_t * );
static block_t *Encode ( encoder_t *, aout_buffer_t * );
-/*****************************************************************************
- * Module descriptor
- *****************************************************************************/
-vlc_module_begin();
- set_category( CAT_INPUT );
- set_subcategory( SUBCAT_INPUT_ACODEC );
-
- set_description( _("Speex audio decoder") );
- set_capability( "decoder", 100 );
- set_callbacks( OpenDecoder, CloseDecoder );
-
- add_submodule();
- set_description( _("Speex audio packetizer") );
- set_capability( "packetizer", 100 );
- set_callbacks( OpenPacketizer, CloseDecoder );
-
- add_submodule();
- set_description( _("Speex audio encoder") );
- set_capability( "encoder", 100 );
- set_callbacks( OpenEncoder, CloseEncoder );
-vlc_module_end();
-
/*****************************************************************************
* OpenDecoder: probe the decoder and return score
*****************************************************************************/
Ask for a new audio output buffer and make sure
we get one.
*/
- p_aout_buffer = p_dec->pf_aout_buffer_new( p_dec,
+ p_aout_buffer = decoder_NewAudioBuffer( p_dec,
p_sys->p_header->frame_size );
if ( !p_aout_buffer || p_aout_buffer->i_nb_bytes == 0 )
{
return NULL;
p_aout_buffer =
- p_dec->pf_aout_buffer_new( p_dec, p_sys->p_header->frame_size );
+ decoder_NewAudioBuffer( p_dec, p_sys->p_header->frame_size );
if( !p_aout_buffer )
{
return NULL;
}
/*****************************************************************************
- * ParseSpeexComments: FIXME should be done in demuxer
+ * ParseSpeexComments:
*****************************************************************************/
#define readint(buf, base) (((buf[base+3]<<24)&0xff000000)| \
((buf[base+2]<<16)&0xff0000)| \
static void ParseSpeexComments( decoder_t *p_dec, ogg_packet *p_oggpacket )
{
- input_thread_t *p_input = (input_thread_t *)p_dec->p_parent;
decoder_sys_t *p_sys = p_dec->p_sys;
-
- char *p_buf = (char *)p_oggpacket->packet;
const SpeexMode *p_mode;
- int i_len;
-
- if( p_input->i_object_type != VLC_OBJECT_INPUT ) return;
assert( p_sys->p_header->mode < SPEEX_NB_MODES );
p_mode = speex_mode_list[p_sys->p_header->mode];
assert( p_mode != NULL );
- input_Control( p_input, INPUT_ADD_INFO, _("Speex comment"), _("Mode"),
- "%s%s", p_mode->modeName,
- p_sys->p_header->vbr ? " VBR" : "" );
-
- if( p_oggpacket->bytes < 8 )
+ if( !p_dec->p_description )
{
- msg_Err( p_dec, "invalid/corrupted comments" );
- return;
+ p_dec->p_description = vlc_meta_New();
+ if( !p_dec->p_description )
+ return;
}
- i_len = readint( p_buf, 0 ); p_buf += 4;
- if( i_len > p_oggpacket->bytes - 4 )
+ /* */
+ char *psz_mode;
+ if( asprintf( &psz_mode, "%s%s", p_mode->modeName, p_sys->p_header->vbr ? " VBR" : "" ) >= 0 )
{
- msg_Err( p_dec, "invalid/corrupted comments" );
- return;
+ vlc_meta_AddExtra( p_dec->p_description, _("Mode"), psz_mode );
+ free( psz_mode );
}
- input_Control( p_input, INPUT_ADD_INFO, _("Speex comment"), p_buf, "" );
-
/* TODO: finish comments parsing */
+ VLC_UNUSED( p_oggpacket );
}
/*****************************************************************************
encoder_t *p_enc = (encoder_t *)p_this;
encoder_sys_t *p_sys;
const SpeexMode *p_speex_mode = &speex_nb_mode;
- int i_quality, i;
+ int i_tmp, i;
const char *pp_header[2];
int pi_header[2];
uint8_t *p_extra;
return VLC_EGENERIC;
}
+ config_ChainParse( p_enc, ENC_CFG_PREFIX, ppsz_enc_options, p_enc->p_cfg );
+ switch( var_GetInteger( p_enc, ENC_CFG_PREFIX "mode" ) )
+ {
+ case 1:
+ msg_Dbg( p_enc, "Using wideband" );
+ p_speex_mode = &speex_wb_mode;
+ break;
+ case 2:
+ msg_Dbg( p_enc, "Using ultra-wideband" );
+ p_speex_mode = &speex_uwb_mode;
+ break;
+ default:
+ msg_Dbg( p_enc, "Using narrowband" );
+ p_speex_mode = &speex_nb_mode;
+ break;
+ }
+
/* Allocate the memory needed to store the decoder's structure */
if( ( p_sys = (encoder_sys_t *)malloc(sizeof(encoder_sys_t)) ) == NULL )
return VLC_ENOMEM;
1, p_speex_mode );
p_sys->header.frames_per_packet = 1;
- p_sys->header.vbr = 1;
+ p_sys->header.vbr = var_GetBool( p_enc, ENC_CFG_PREFIX "cbr" ) ? 0 : 1;
p_sys->header.nb_channels = p_enc->fmt_in.audio.i_channels;
/* Create a new encoder state in narrowband mode */
p_sys->p_state = speex_encoder_init( p_speex_mode );
- /* Set the quality to 8 (15 kbps) */
- i_quality = 8;
- speex_encoder_ctl( p_sys->p_state, SPEEX_SET_QUALITY, &i_quality );
+ /* Parameters */
+ i_tmp = var_GetInteger( p_enc, ENC_CFG_PREFIX "complexity" );
+ speex_encoder_ctl( p_sys->p_state, SPEEX_SET_COMPLEXITY, &i_tmp );
+
+ i_tmp = var_GetBool( p_enc, ENC_CFG_PREFIX "cbr" ) ? 0 : 1;
+ speex_encoder_ctl( p_sys->p_state, SPEEX_SET_VBR, &i_tmp );
+
+ if( i_tmp == 0 ) /* CBR */
+ {
+ i_tmp = var_GetFloat( p_enc, ENC_CFG_PREFIX "quality" );
+ speex_encoder_ctl( p_sys->p_state, SPEEX_SET_QUALITY, &i_tmp );
+
+ i_tmp = var_GetBool( p_enc, ENC_CFG_PREFIX "vad" ) ? 1 : 0;
+ speex_encoder_ctl( p_sys->p_state, SPEEX_SET_VAD, &i_tmp );
+ }
+ else
+ {
+ float f_tmp;
+
+ f_tmp = var_GetFloat( p_enc, ENC_CFG_PREFIX "quality" );
+ speex_encoder_ctl( p_sys->p_state, SPEEX_SET_VBR_QUALITY, &f_tmp );
+
+ i_tmp = var_GetInteger( p_enc, ENC_CFG_PREFIX "max-bitrate" );
+ if( i_tmp > 0 )
+#ifdef SPEEX_SET_VBR_MAX_BITRATE
+ speex_encoder_ctl( p_sys->p_state, SPEEX_SET_VBR_MAX_BITRATE, &i_tmp );
+#else
+ msg_Dbg( p_enc, "max-bitrate cannot be set in this version of libspeex");
+#endif
+ }
+
+ i_tmp = var_GetBool( p_enc, ENC_CFG_PREFIX "dtx" ) ? 1 : 0;
+ speex_encoder_ctl( p_sys->p_state, SPEEX_SET_DTX, &i_tmp );
+
/*Initialization of the structure that holds the bits*/
speex_bits_init( &p_sys->bits );
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