speex.c File Reference

Include dependency graph for speex.c:


Data Structures

struct  decoder_sys_t
struct  encoder_sys_t

Defines

#define ENC_CFG_PREFIX   "sout-speex-"
#define ENC_MODE_TEXT   N_("Mode" )
#define ENC_MODE_LONGTEXT
#define ENC_QUALITY_TEXT   N_("Encoding quality")
#define ENC_QUALITY_LONGTEXT
#define ENC_COMPLEXITY_TEXT   N_("Encoding complexity" )
#define ENC_COMPLEXITY_LONGTEXT
#define ENC_MAXBITRATE_TEXT   N_( "Maximal bitrate" )
#define ENC_MAXBITRATE_LONGTEXT
#define ENC_CBR_TEXT   N_( "CBR encoding" )
#define ENC_CBR_LONGTEXT
#define ENC_VAD_TEXT   N_( "Voice activity detection" )
#define ENC_VAD_LONGTEXT
#define ENC_DTX_TEXT   N_( "Discontinuous Transmission" )
#define ENC_DTX_LONGTEXT
#define readint(buf, base)
#define MAX_FRAME_SIZE   2000
#define MAX_FRAME_BYTES   2000

Functions

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 *)
int vlc_entry__main (module_t *p_module)
const char * vlc_entry_license__main (void)
static void * DecodeBlock (decoder_t *, block_t **)
static aout_buffer_t * DecodeRtpSpeexPacket (decoder_t *, block_t **)
static int ProcessHeaders (decoder_t *)
static int ProcessInitialHeader (decoder_t *, ogg_packet *)
static void * ProcessPacket (decoder_t *, ogg_packet *, block_t **)
static aout_buffer_t * DecodePacket (decoder_t *, ogg_packet *)
static block_t * SendPacket (decoder_t *, block_t *)
static void ParseSpeexComments (decoder_t *, ogg_packet *)
static block_t * Encode (encoder_t *, aout_buffer_t *)

Variables

static const int pi_enc_mode_values [] = { 0, 1, 2 }
static const char *const ppsz_enc_mode_descriptions []
static const char *const ppsz_enc_options []
static const int pi_channels_maps [6]

Define Documentation

#define ENC_CBR_LONGTEXT

Value:

N_( \
    "Enforce a constant bitrate encoding (CBR) instead of default " \
    "variable bitrate encoding (VBR)." )

#define ENC_CBR_TEXT   N_( "CBR encoding" )

#define ENC_CFG_PREFIX   "sout-speex-"

#define ENC_COMPLEXITY_LONGTEXT

Value:

N_( \
    "Enforce the complexity of the encoder." )

#define ENC_COMPLEXITY_TEXT   N_("Encoding complexity" )

#define ENC_DTX_LONGTEXT

Value:

N_( \
    "Enable discontinuous transmission (DTX)." )

#define ENC_DTX_TEXT   N_( "Discontinuous Transmission" )

#define ENC_MAXBITRATE_LONGTEXT

Value:

N_( \
    "Enforce the maximal VBR bitrate" )

#define ENC_MAXBITRATE_TEXT   N_( "Maximal bitrate" )

#define ENC_MODE_LONGTEXT

Value:

N_( \
    "Enforce the mode of the encoder." )

#define ENC_MODE_TEXT   N_("Mode" )

#define ENC_QUALITY_LONGTEXT

Value:

N_( \
    "Enforce a quality between 0 (low) and 10 (high)." )

#define ENC_QUALITY_TEXT   N_("Encoding quality")

#define ENC_VAD_LONGTEXT

Value:

N_( \
    "Enable voice activity detection (VAD). It is automatically " \
    "activated in VBR mode." )

#define ENC_VAD_TEXT   N_( "Voice activity detection" )

#define MAX_FRAME_BYTES   2000

Referenced by Encode().

#define MAX_FRAME_SIZE   2000

#define readint ( buf,
base   ) 

Value:

(((buf[base+3]<<24)&0xff000000)| \
                           ((buf[base+2]<<16)&0xff0000)| \
                           ((buf[base+1]<<8)&0xff00)| \
                            (buf[base]&0xff))

Function Documentation

static void CloseDecoder ( vlc_object_t *  p_this  )  [static]

References decoder_sys_t::bits, decoder_sys_t::p_header, decoder_sys_t::p_state, decoder_t::p_sys, and p_sys.

static void CloseEncoder ( vlc_object_t *  p_this  )  [static]

static void * DecodeBlock ( decoder_t *  p_dec,
block_t **  pp_block 
) [static]

References decoder_sys_t::b_has_headers, decoder_sys_t::b_packetizer, block_Release(), decoder_sys_t::p_buffer, decoder_t::p_sys, p_sys, ProcessHeaders(), and ProcessPacket().

static aout_buffer_t * DecodePacket ( decoder_t *  p_dec,
ogg_packet *  p_oggpacket 
) [static]

References decoder_sys_t::bits, date_Get(), date_Increment(), decoder_NewAudioBuffer(), decoder_sys_t::end_date, decoder_sys_t::i_frame_in_packet, block_t::i_length, block_t::i_pts, msg_Err, block_t::p_buffer, decoder_sys_t::p_header, decoder_sys_t::p_state, decoder_t::p_sys, p_sys, and decoder_sys_t::stereo.

static aout_buffer_t * DecodeRtpSpeexPacket ( decoder_t *  p_dec,
block_t **  pp_block 
) [static]

References es_format_t::audio, decoder_sys_t::bits, block_Release(), date_Get(), date_Increment(), date_Init(), date_Set(), decoder_NewAudioBuffer(), decoder_sys_t::end_date, decoder_t::fmt_out, block_t::i_buffer, audio_format_t::i_bytes_per_frame, audio_format_t::i_channels, block_t::i_dts, decoder_sys_t::i_frame_in_packet, block_t::i_length, audio_format_t::i_original_channels, audio_format_t::i_physical_channels, block_t::i_pts, audio_format_t::i_rate, msg_Err, block_t::p_buffer, decoder_sys_t::p_header, decoder_sys_t::p_state, decoder_t::p_sys, p_sys, pi_channels_maps, decoder_sys_t::rtp_rate, and VLC_TS_INVALID.

Referenced by OpenDecoder().

static block_t * Encode ( encoder_t *  p_enc,
aout_buffer_t *  p_aout_buf 
) [static]

References es_format_t::audio, encoder_sys_t::bits, block_ChainAppend(), block_New, encoder_t::fmt_in, encoder_sys_t::header, audio_format_t::i_channels, block_t::i_dts, encoder_sys_t::i_frame_length, encoder_sys_t::i_frame_size, encoder_sys_t::i_frames_in_packet, block_t::i_length, block_t::i_nb_samples, block_t::i_pts, audio_format_t::i_rate, encoder_sys_t::i_samples_delay, MAX_FRAME_BYTES, encoder_sys_t::p_buffer, block_t::p_buffer, encoder_sys_t::p_buffer_out, encoder_sys_t::p_state, and encoder_t::p_sys.

static int OpenDecoder ( vlc_object_t *  p_this  )  [static]

References es_format_t::audio, AUDIO_ES, decoder_sys_t::b_has_headers, decoder_sys_t::b_packetizer, decoder_sys_t::bits, date_Set(), DecodeBlock(), DecodeRtpSpeexPacket(), decoder_sys_t::end_date, decoder_t::fmt_in, decoder_t::fmt_out, es_format_t::i_cat, es_format_t::i_codec, decoder_sys_t::i_frame_in_packet, es_format_t::i_original_fourcc, audio_format_t::i_rate, msg_Dbg, decoder_sys_t::p_header, decoder_sys_t::p_state, decoder_t::p_sys, p_sys, decoder_t::pf_decode_audio, decoder_t::pf_packetize, decoder_sys_t::rtp_rate, VLC_CODEC_S16N, VLC_CODEC_SPEEX, VLC_EGENERIC, VLC_ENOMEM, VLC_FOURCC, and VLC_SUCCESS.

static int OpenEncoder ( vlc_object_t *  p_this  )  [static]

static int OpenPacketizer ( vlc_object_t *  p_this  )  [static]

References decoder_sys_t::b_packetizer, decoder_t::fmt_out, es_format_t::i_codec, OpenDecoder(), decoder_t::p_sys, VLC_CODEC_SPEEX, and VLC_SUCCESS.

static void ParseSpeexComments ( decoder_t *  p_dec,
ogg_packet *  p_oggpacket 
) [static]

References _, asprintf(), decoder_t::p_description, decoder_sys_t::p_header, decoder_t::p_sys, p_sys, vlc_meta_AddExtra(), vlc_meta_New(), and VLC_UNUSED.

Referenced by ProcessHeaders().

static int ProcessHeaders ( decoder_t *  p_dec  )  [static]

References decoder_sys_t::b_packetizer, decoder_t::fmt_in, decoder_t::fmt_out, i, es_format_t::i_extra, msg_Err, es_format_t::p_extra, decoder_t::p_sys, p_sys, ParseSpeexComments(), ProcessInitialHeader(), VLC_EGENERIC, VLC_SUCCESS, XIPH_MAX_HEADER_COUNT, xiph_SplitHeaders(), and xrealloc().

static int ProcessInitialHeader ( decoder_t *  p_dec,
ogg_packet *  p_oggpacket 
) [static]

References es_format_t::audio, decoder_sys_t::bits, callback(), date_Init(), decoder_sys_t::end_date, decoder_t::fmt_out, audio_format_t::i_channels, audio_format_t::i_original_channels, audio_format_t::i_physical_channels, audio_format_t::i_rate, msg_Dbg, msg_Err, decoder_sys_t::p_header, decoder_sys_t::p_state, decoder_t::p_sys, p_sys, pi_channels_maps, decoder_sys_t::stereo, VLC_EGENERIC, and VLC_SUCCESS.

Referenced by ProcessHeaders().

static void * ProcessPacket ( decoder_t *  p_dec,
ogg_packet *  p_oggpacket,
block_t **  pp_block 
) [static]

References decoder_sys_t::b_packetizer, decoder_sys_t::bits, block_New, block_Realloc(), block_Release(), date_Get(), date_Set(), DecodePacket(), decoder_sys_t::end_date, block_t::i_buffer, block_t::i_pts, block_t::p_buffer, decoder_sys_t::p_header, decoder_sys_t::p_state, decoder_t::p_sys, p_sys, SendPacket(), VLC_TS_INVALID, and xmalloc().

static block_t * SendPacket ( decoder_t *  p_dec,
block_t *  p_block 
) [static]

References date_Get(), date_Increment(), decoder_sys_t::end_date, block_t::i_dts, block_t::i_length, block_t::i_pts, decoder_sys_t::p_header, decoder_t::p_sys, and p_sys.

Referenced by ProcessPacket().

int vlc_entry__main ( module_t *  p_module  ) 

const char* vlc_entry_license__main ( void   ) 

Variable Documentation

const int pi_channels_maps[6] [static]

Initial value:

{
    0,
     0x1 ,    0x2  |  0x4 ,
     0x1  |  0x2  |  0x4 ,
     0x2  |  0x4  |  0x20 
     |  0x40 ,
     0x2  |  0x4  |  0x1 
     |  0x20  |  0x40 
}

const int pi_enc_mode_values[] = { 0, 1, 2 } [static]

const char* const ppsz_enc_mode_descriptions[] [static]

Initial value:

 {
    N_("Narrow-band (8kHz)"), N_("Wide-band (16kHz)"), N_("Ultra-wideband (32kHz)"), NULL
}

const char* const ppsz_enc_options[] [static]

Initial value:

 {
    "mode", "complexity", "cbr", "quality", "max-bitrate", "vad", "dtx", NULL
}

Generated on Tue May 25 08:05:14 2010 for VLC by  doxygen 1.5.6