asrc_flite.c File Reference

#include <flite/flite.h>
#include "libavutil/audio_fifo.h"
#include "libavutil/avstring.h"
#include "libavutil/channel_layout.h"
#include "libavutil/file.h"
#include "libavutil/opt.h"
#include "libavutil/thread.h"
#include "avfilter.h"
#include "filters.h"
#include "audio.h"
#include "formats.h"
#include "internal.h"

Go to the source code of this file.

Data Structures
struct	FliteContext
struct	voice_entry

Macros
#define	OFFSET(x)   offsetof(FliteContext, x)
#define	FLAGS   AV_OPT_FLAG_AUDIO_PARAM|AV_OPT_FLAG_FILTERING_PARAM
#define	DECLARE_REGISTER_VOICE_FN(name)
#define	MAKE_VOICE_STRUCTURE(voice_name)

Functions
	AVFILTER_DEFINE_CLASS (flite)
	DECLARE_REGISTER_VOICE_FN (awb)
	DECLARE_REGISTER_VOICE_FN (kal)
	DECLARE_REGISTER_VOICE_FN (kal16)
	DECLARE_REGISTER_VOICE_FN (rms)
	DECLARE_REGISTER_VOICE_FN (slt)
static void	list_voices (void *log_ctx, const char *sep)
static int	select_voice (struct voice_entry **entry_ret, const char *voice_name, void *log_ctx)
static int	audio_stream_chunk_by_word (const cst_wave *wave, int start, int size, int last, cst_audio_streaming_info *asi)
static av_cold int	init (AVFilterContext *ctx)
static av_cold void	uninit (AVFilterContext *ctx)
static int	query_formats (AVFilterContext *ctx)
static int	config_props (AVFilterLink *outlink)
static int	activate (AVFilterContext *ctx)

Variables
static const AVOption	flite_options []
static AVMutex	flite_mutex = AV_MUTEX_INITIALIZER
static int	flite_inited = 0
static struct voice_entry	voice_entries []
static const AVFilterPad	flite_outputs []
const AVFilter	ff_asrc_flite

Detailed Description

flite voice synth source

Definition in file asrc_flite.c.

Macro Definition Documentation

OFFSET

#define OFFSET

(

x

)

offsetof(FliteContext, x)

Definition at line 57 of file asrc_flite.c.

FLAGS

#define FLAGS   AV_OPT_FLAG_AUDIO_PARAM|AV_OPT_FLAG_FILTERING_PARAM

Definition at line 58 of file asrc_flite.c.

DECLARE_REGISTER_VOICE_FN

#define DECLARE_REGISTER_VOICE_FN

(

name

)

Value:

    cst_voice *register_cmu_us_## name(const char *); \
    void     unregister_cmu_us_## name(cst_voice *)

Definition at line 78 of file asrc_flite.c.

MAKE_VOICE_STRUCTURE

#define MAKE_VOICE_STRUCTURE

(

voice_name

)

Value:

    {             \
    .name          =                      #voice_name, \
    .register_fn   =   register_cmu_us_ ## voice_name, \
    .unregister_fn = unregister_cmu_us_ ## voice_name, \
}

Definition at line 95 of file asrc_flite.c.

Function Documentation

AVFILTER_DEFINE_CLASS()

AVFILTER_DEFINE_CLASS

(

flite

)

DECLARE_REGISTER_VOICE_FN() [1/5]

DECLARE_REGISTER_VOICE_FN

(

awb

)

DECLARE_REGISTER_VOICE_FN() [2/5]

DECLARE_REGISTER_VOICE_FN

(

kal

)

DECLARE_REGISTER_VOICE_FN() [3/5]

DECLARE_REGISTER_VOICE_FN

(

kal16

)

DECLARE_REGISTER_VOICE_FN() [4/5]

DECLARE_REGISTER_VOICE_FN

(

rms

)

DECLARE_REGISTER_VOICE_FN() [5/5]

DECLARE_REGISTER_VOICE_FN

(

slt

)

list_voices()

static void list_voices ( void *  log_ctx, const char *  sep  )

static

Definition at line 108 of file asrc_flite.c.

Referenced by init(), and select_voice().

select_voice()

static int select_voice ( struct voice_entry **  entry_ret, const char *  voice_name, void *  log_ctx  )

static

Definition at line 116 of file asrc_flite.c.

Referenced by init().

audio_stream_chunk_by_word()

static int audio_stream_chunk_by_word ( const cst_wave *  wave, int  start, int  size, int  last, cst_audio_streaming_info *  asi  )

static

Definition at line 148 of file asrc_flite.c.

Referenced by init().

init()

static av_cold int init ( AVFilterContext *  ctx )

static

Definition at line 167 of file asrc_flite.c.

uninit()

static av_cold void uninit ( AVFilterContext *  ctx )

static

Definition at line 243 of file asrc_flite.c.

query_formats()

static int query_formats ( AVFilterContext *  ctx )

static

Definition at line 258 of file asrc_flite.c.

config_props()

static int config_props ( AVFilterLink *  outlink )

static

Definition at line 281 of file asrc_flite.c.

activate()

static int activate ( AVFilterContext *  ctx )

static

Definition at line 296 of file asrc_flite.c.

Variable Documentation

flite_options

const AVOption flite_options[]

static

Initial value:

= {
    { "list_voices", "list voices and exit",              OFFSET(list_voices), AV_OPT_TYPE_BOOL, {.i64=0}, 0, 1, FLAGS },
    { "nb_samples",  "set number of samples per frame",   OFFSET(frame_nb_samples), AV_OPT_TYPE_INT, {.i64=512}, 0, INT_MAX, FLAGS },
    { "n",           "set number of samples per frame",   OFFSET(frame_nb_samples), AV_OPT_TYPE_INT, {.i64=512}, 0, INT_MAX, FLAGS },
    { "text",        "set text to speak",                 OFFSET(text),      AV_OPT_TYPE_STRING, {.str=NULL}, 0, 0, FLAGS },
    { "textfile",    "set filename of the text to speak", OFFSET(textfile),  AV_OPT_TYPE_STRING, {.str=NULL}, 0, 0, FLAGS },
    { "v",           "set voice",                         OFFSET(voice_str), AV_OPT_TYPE_STRING, {.str="kal"}, 0, 0, FLAGS },
    { "voice",       "set voice",                         OFFSET(voice_str), AV_OPT_TYPE_STRING, {.str="kal"}, 0, 0, FLAGS },
    { NULL }
}

Definition at line 60 of file asrc_flite.c.

flite_mutex

AVMutex flite_mutex = AV_MUTEX_INITIALIZER

static

Definition at line 73 of file asrc_flite.c.

Referenced by init(), select_voice(), and uninit().

flite_inited

int flite_inited = 0

static

Definition at line 75 of file asrc_flite.c.

Referenced by init().

voice_entries

struct voice_entry voice_entries[]

static

Initial value:

= {
    MAKE_VOICE_STRUCTURE(awb),
    MAKE_VOICE_STRUCTURE(kal),
    MAKE_VOICE_STRUCTURE(kal16),
    MAKE_VOICE_STRUCTURE(rms),
    MAKE_VOICE_STRUCTURE(slt),
}

Definition at line 100 of file asrc_flite.c.

Referenced by list_voices(), and select_voice().

flite_outputs

const AVFilterPad flite_outputs[]

static

Initial value:

= {
    {
        .name          = "default",
        .type          = AVMEDIA_TYPE_AUDIO,
        .config_props  = config_props,
    },
}

Definition at line 334 of file asrc_flite.c.

ff_asrc_flite

const AVFilter ff_asrc_flite

Initial value:

= {
    .name          = "flite",
    .description   = NULL_IF_CONFIG_SMALL("Synthesize voice from text using libflite."),
    .init          = init,
    .uninit        = uninit,
    .priv_size     = sizeof(FliteContext),
    .activate      = activate,
    .inputs        = NULL,
    FILTER_OUTPUTS(flite_outputs),
    FILTER_QUERY_FUNC(query_formats),
    .priv_class    = &flite_class,
}

Definition at line 342 of file asrc_flite.c.