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cngdec.c File Reference
#include <math.h>
#include "libavutil/common.h"
#include "libavutil/ffmath.h"
#include "avcodec.h"
#include "celp_filters.h"
#include "internal.h"
#include "libavutil/lfg.h"

Go to the source code of this file.

Data Structures

struct  CNGContext


static av_cold int cng_decode_close (AVCodecContext *avctx)
static av_cold int cng_decode_init (AVCodecContext *avctx)
static void make_lpc_coefs (float *lpc, const float *refl, int order)
static void cng_decode_flush (AVCodecContext *avctx)
static int cng_decode_frame (AVCodecContext *avctx, void *data, int *got_frame_ptr, AVPacket *avpkt)


AVCodec ff_comfortnoise_decoder

Function Documentation

static av_cold int cng_decode_close ( AVCodecContext avctx)

Definition at line 42 of file cngdec.c.

Referenced by cng_decode_init().

static av_cold int cng_decode_init ( AVCodecContext avctx)

Definition at line 53 of file cngdec.c.

static void make_lpc_coefs ( float *  lpc,
const float *  refl,
int  order 

Definition at line 80 of file cngdec.c.

Referenced by cng_decode_frame().

static void cng_decode_flush ( AVCodecContext avctx)

Definition at line 97 of file cngdec.c.

static int cng_decode_frame ( AVCodecContext avctx,
void data,
int *  got_frame_ptr,
AVPacket avpkt 

Definition at line 103 of file cngdec.c.

Variable Documentation

AVCodec ff_comfortnoise_decoder
Initial value:
= {
.name = "comfortnoise",
.long_name = NULL_IF_CONFIG_SMALL("RFC 3389 comfort noise generator"),
.priv_data_size = sizeof(CNGContext),
.close = cng_decode_close,
static void flush(AVCodecContext *avctx)
static av_cold int init(AVCodecContext *avctx)
Definition: avrndec.c:35
static int cng_decode_frame(AVCodecContext *avctx, void *data, int *got_frame_ptr, AVPacket *avpkt)
Definition: cngdec.c:103
Encoder or decoder requires flushing with NULL input at the end in order to give the complete and cor...
Definition: avcodec.h:981
Return NULL if CONFIG_SMALL is true, otherwise the argument without modification. ...
Definition: internal.h:176
static void cng_decode_flush(AVCodecContext *avctx)
Definition: cngdec.c:97
Audio sample formats.
Definition: samplefmt.h:58
static int decode(AVCodecContext *avctx, void *data, int *got_sub, AVPacket *avpkt)
Definition: ccaption_dec.c:722
signed 16 bits
Definition: samplefmt.h:61
static av_cold int cng_decode_close(AVCodecContext *avctx)
Definition: cngdec.c:42
static enum AVSampleFormat sample_fmts[]
Definition: adpcmenc.c:701
#define AV_CODEC_CAP_DR1
Codec uses get_buffer() for allocating buffers and supports custom allocators.
Definition: avcodec.h:956
static av_cold int cng_decode_init(AVCodecContext *avctx)
Definition: cngdec.c:53

Definition at line 159 of file cngdec.c.