hvirtual/quicktime/ffmpeg/libavcodec/ws-snd1.c File Reference

#include "avcodec.h"

Include dependency graph for ws-snd1.c:

Go to the source code of this file.

Data Structures
struct	WSSNDContext
Defines
#define	CLIP8(a)   if(a>127)a=127;if(a<-128)a=-128;
Functions
static int	ws_snd_decode_init (AVCodecContext *avctx)
static int	ws_snd_decode_frame (AVCodecContext *avctx, void *data, int *data_size, uint8_t *buf, int buf_size)
Variables
static const char	ws_adpcm_2bit [] = { -2, -1, 0, 1}
static const char	ws_adpcm_4bit []
AVCodec	ws_snd1_decoder

---

Define Documentation

#define CLIP8

(

a

)

if(a>127)a=127;if(a<-128)a=-128;

Definition at line 38 of file ws-snd1.c.

Referenced by ws_snd_decode_frame().

---

Function Documentation

static int ws_snd_decode_frame	(	AVCodecContext *	avctx,
		void *	data,
		int *	data_size,
		uint8_t *	buf,
		int	buf_size
	)			[static]

Definition at line 47 of file ws-snd1.c.

References CLIP8, LE_16, samples, t, ws_adpcm_2bit, and ws_adpcm_4bit.

static int ws_snd_decode_init

(

AVCodecContext *

avctx

)

[static]

Definition at line 40 of file ws-snd1.c.

---

Variable Documentation

const char ws_adpcm_2bit[] = { -2, -1, 0, 1} [static]

Definition at line 33 of file ws-snd1.c.

Referenced by ws_snd_decode_frame().

const char ws_adpcm_4bit[] [static]

Initial value:

 {
    -9, -8, -6, -5, -4, -3, -2, -1,
     0,  1,  2,  3,  4,  5,  6,  8 }

Definition at line 34 of file ws-snd1.c.

Referenced by ws_snd_decode_frame().

AVCodec ws_snd1_decoder

Initial value:

 {
    "ws_snd1",
    CODEC_TYPE_AUDIO,
    CODEC_ID_WESTWOOD_SND1,
    sizeof(WSSNDContext),
    ws_snd_decode_init,
    NULL,
    NULL,
    ws_snd_decode_frame,
}

Definition at line 136 of file ws-snd1.c.

Referenced by avcodec_register_all().