ws-snd1.c File Reference

Westwood SNDx codecs. More...

#include <stdint.h>
#include "libavutil/intreadwrite.h"
#include "avcodec.h"
#include "internal.h"

Go to the source code of this file.

Data Structures

struct  WSSndContext
 

Typedefs

typedef struct WSSndContext WSSndContext
 

Functions

static av_cold int ws_snd_decode_init (AVCodecContext *avctx)
 
static int ws_snd_decode_frame (AVCodecContext *avctx, void *data, int *got_frame_ptr, AVPacket *avpkt)
 

Variables

static const int8_t ws_adpcm_4bit []
 
AVCodec ff_ws_snd1_decoder
 

Detailed Description

Westwood SNDx codecs.

Reference documents about VQA format and its audio codecs can be found here: http://www.multimedia.cx

Definition in file ws-snd1.c.

Typedef Documentation

typedef struct WSSndContext WSSndContext

Function Documentation

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

Definition at line 62 of file ws-snd1.c.

static av_cold int ws_snd_decode_init ( AVCodecContext avctx)
static

Definition at line 45 of file ws-snd1.c.

Variable Documentation

AVCodec ff_ws_snd1_decoder
Initial value:
= {
.name = "ws_snd1",
.priv_data_size = sizeof(WSSndContext),
.capabilities = CODEC_CAP_DR1,
.long_name = NULL_IF_CONFIG_SMALL("Westwood Audio (SND1)"),
}
static av_cold int ws_snd_decode_init(AVCodecContext *avctx)
Definition: ws-snd1.c:45
struct WSSndContext WSSndContext
static int decode(MimicContext *ctx, int quality, int num_coeffs, int is_iframe)
Definition: mimic.c:228
static int init(AVCodecParserContext *s)
Definition: h264_parser.c:336
#define CODEC_CAP_DR1
Codec uses get_buffer() for allocating buffers and supports custom allocators.
Definition: avcodec.h:719
#define NULL_IF_CONFIG_SMALL(x)
Return NULL if CONFIG_SMALL is true, otherwise the argument without modification. ...
Definition: internal.h:191
static int ws_snd_decode_frame(AVCodecContext *avctx, void *data, int *got_frame_ptr, AVPacket *avpkt)
Definition: ws-snd1.c:62

Definition at line 186 of file ws-snd1.c.

const int8_t 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 36 of file ws-snd1.c.

Referenced by ws_snd_decode_frame().