bmv.c File Reference

#include "libavutil/avassert.h"
#include "libavutil/channel_layout.h"
#include "avcodec.h"
#include "bytestream.h"
#include "internal.h"

Go to the source code of this file.

Data Structures
struct	BMVDecContext

Macros
#define	SCREEN_WIDE   640
#define	SCREEN_HIGH   429
#define	NEXT_BYTE(v)   v = forward ? v + 1 : v - 1;

Enumerations
enum	BMVFlags {   BMV_NOP = 0, BMV_END, BMV_DELTA, BMV_INTRA,   BMV_SCROLL = 0x04, BMV_PALETTE = 0x08, BMV_COMMAND = 0x10, BMV_AUDIO = 0x20,   BMV_EXT = 0x40, BMV_PRINT = 0x80, BMV_NOP = 0, BMV_END,   BMV_DELTA, BMV_INTRA, BMV_AUDIO = 0x20 }

Functions
static int	decode_bmv_frame (const uint8_t *source, int src_len, uint8_t *frame, int frame_off)
static int	decode_frame (AVCodecContext *avctx, void *data, int *got_frame, AVPacket *pkt)
static av_cold int	decode_init (AVCodecContext *avctx)
static av_cold int	bmv_aud_decode_init (AVCodecContext *avctx)
static int	bmv_aud_decode_frame (AVCodecContext *avctx, void *data, int *got_frame_ptr, AVPacket *avpkt)

Variables
static const int	bmv_aud_mults [16]
AVCodec	ff_bmv_video_decoder
AVCodec	ff_bmv_audio_decoder

Macro Definition Documentation

#define SCREEN_WIDE   640

Definition at line 42 of file bmv.c.

Referenced by decode_bmv_frame(), and decode_init().

#define SCREEN_HIGH   429

Definition at line 43 of file bmv.c.

Referenced by decode_bmv_frame(), and decode_init().

#define NEXT_BYTE

(

v

)

v = forward ? v + 1 : v - 1;

Definition at line 53 of file bmv.c.

Referenced by decode_bmv_frame().

Enumeration Type Documentation

enum BMVFlags

Enumerator:

BMV_NOP
BMV_END
BMV_DELTA
BMV_INTRA
BMV_SCROLL
BMV_PALETTE
BMV_COMMAND
BMV_AUDIO
BMV_EXT
BMV_PRINT
BMV_NOP
BMV_END
BMV_DELTA
BMV_INTRA
BMV_AUDIO

Definition at line 28 of file bmv.c.

Function Documentation

static int decode_bmv_frame ( const uint8_t *  source, int  src_len, uint8_t *  frame, int  frame_off  )

static

Definition at line 55 of file bmv.c.

Referenced by decode_frame().

static int decode_frame ( AVCodecContext *  avctx, void *  data, int *  got_frame, AVPacket *  pkt  )

static

Definition at line 198 of file bmv.c.

static av_cold int decode_init ( AVCodecContext *  avctx )

static

Definition at line 271 of file bmv.c.

static av_cold int bmv_aud_decode_init ( AVCodecContext *  avctx )

static

Definition at line 292 of file bmv.c.

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

static

Definition at line 301 of file bmv.c.

Variable Documentation

const int bmv_aud_mults[16]

static

Initial value:

= {
    16512, 8256, 4128, 2064, 1032, 516, 258, 192, 129, 88, 64, 56, 48, 40, 36, 32
}

Definition at line 288 of file bmv.c.

Referenced by bmv_aud_decode_frame().

AVCodec ff_bmv_video_decoder

Initial value:

= {
    .name           = "bmv_video",
    .long_name      = NULL_IF_CONFIG_SMALL("Discworld II BMV video"),
    .type           = AVMEDIA_TYPE_VIDEO,
    .id             = AV_CODEC_ID_BMV_VIDEO,
    .priv_data_size = sizeof(BMVDecContext),
    .init           = decode_init,
    .decode         = decode_frame,
    .capabilities   = CODEC_CAP_DR1,
}

Definition at line 341 of file bmv.c.

AVCodec ff_bmv_audio_decoder

Initial value:

= {
    .name           = "bmv_audio",
    .long_name      = NULL_IF_CONFIG_SMALL("Discworld II BMV audio"),
    .type           = AVMEDIA_TYPE_AUDIO,
    .id             = AV_CODEC_ID_BMV_AUDIO,
    .init           = bmv_aud_decode_init,
    .decode         = bmv_aud_decode_frame,
    .capabilities   = CODEC_CAP_DR1,
}

Definition at line 352 of file bmv.c.