libavcodec/flashsv.c File Reference

Flash Screen Video decoder. More...

#include <stdio.h>
#include <stdlib.h>
#include <zlib.h>
#include "libavutil/intreadwrite.h"
#include "avcodec.h"
#include "bytestream.h"
#include "get_bits.h"

Go to the source code of this file.

Data Structures
struct	BlockInfo
struct	FlashSVContext
Typedefs
typedef struct BlockInfo	BlockInfo
typedef struct FlashSVContext	FlashSVContext
Functions
static int	decode_hybrid (const uint8_t *sptr, uint8_t *dptr, int dx, int dy, int h, int w, int stride, const uint32_t *pal)
static av_cold int	flashsv_decode_init (AVCodecContext *avctx)
static void	flashsv2_prime (FlashSVContext *s, uint8_t *src, int size, int unp_size)
static int	flashsv_decode_block (AVCodecContext *avctx, AVPacket *avpkt, GetBitContext *gb, int block_size, int width, int height, int x_pos, int y_pos, int blk_idx)
static int	calc_deflate_block_size (int tmpblock_size)
static int	flashsv_decode_frame (AVCodecContext *avctx, void *data, int *data_size, AVPacket *avpkt)
static av_cold int	flashsv_decode_end (AVCodecContext *avctx)
static av_cold int	flashsv2_decode_init (AVCodecContext *avctx)
static av_cold int	flashsv2_decode_end (AVCodecContext *avctx)
Variables
AVCodec	ff_flashsv_decoder
static const uint32_t	ff_flashsv2_default_palette [128]
AVCodec	ff_flashsv2_decoder

---

Detailed Description

Flash Screen Video decoder.

Author:

Alex Beregszaszi

Benjamin Larsson

Daniel Verkamp

Konstantin Shishkov

A description of the bitstream format for Flash Screen Video version 1/2 is part of the SWF File Format Specification (version 10), which can be downloaded from http://www.adobe.com/devnet/swf.html.

Definition in file flashsv.c.

---

Typedef Documentation

typedef struct BlockInfo BlockInfo

typedef struct FlashSVContext FlashSVContext

---

Function Documentation

static int calc_deflate_block_size

(

int

tmpblock_size

)

[static]

Definition at line 213 of file flashsv.c.

Referenced by flashsv_decode_frame().

static int decode_hybrid	(	const uint8_t *	sptr,
		uint8_t *	dptr,
		int	dx,
		int	dy,
		int	h,
		int	w,
		int	stride,
		const uint32_t *	pal
	)			[static]

Definition at line 73 of file flashsv.c.

Referenced by flashsv_decode_block().

static av_cold int flashsv2_decode_end

(

AVCodecContext *

avctx

)

[static]

Definition at line 515 of file flashsv.c.

static av_cold int flashsv2_decode_init

(

AVCodecContext *

avctx

)

[static]

Definition at line 505 of file flashsv.c.

static void flashsv2_prime	(	FlashSVContext *	s,
		uint8_t *	src,
		int	size,
		int	unp_size
	)			[static]

Definition at line 124 of file flashsv.c.

Referenced by flashsv_decode_block().

static int flashsv_decode_block	(	AVCodecContext *	avctx,
		AVPacket *	avpkt,
		GetBitContext *	gb,
		int	block_size,
		int	width,
		int	height,
		int	x_pos,
		int	y_pos,
		int	blk_idx
	)			[static]

Definition at line 156 of file flashsv.c.

Referenced by flashsv_decode_frame().

static av_cold int flashsv_decode_end

(

AVCodecContext *

avctx

)

[static]

Definition at line 449 of file flashsv.c.

Referenced by flashsv2_decode_end().

static int flashsv_decode_frame	(	AVCodecContext *	avctx,
		void *	data,
		int *	data_size,
		AVPacket *	avpkt
	)			[static]

Definition at line 229 of file flashsv.c.

static av_cold int flashsv_decode_init

(

AVCodecContext *

avctx

)

[static]

Definition at line 103 of file flashsv.c.

Referenced by flashsv2_decode_init().

---

Variable Documentation

AVCodec ff_flashsv2_decoder

Initial value:

 {
    .name           = "flashsv2",
    .type           = AVMEDIA_TYPE_VIDEO,
    .id             = CODEC_ID_FLASHSV2,
    .priv_data_size = sizeof(FlashSVContext),
    .init           = flashsv2_decode_init,
    .close          = flashsv2_decode_end,
    .decode         = flashsv_decode_frame,
    .capabilities   = CODEC_CAP_DR1,
    .pix_fmts       = (const enum PixelFormat[]){PIX_FMT_BGR24, PIX_FMT_NONE},
    .long_name      = NULL_IF_CONFIG_SMALL("Flash Screen Video v2"),
}

Definition at line 528 of file flashsv.c.

const uint32_t ff_flashsv2_default_palette[128] [static]

Initial value:

 {
    0x000000, 0x333333, 0x666666, 0x999999, 0xCCCCCC, 0xFFFFFF,
    0x330000, 0x660000, 0x990000, 0xCC0000, 0xFF0000, 0x003300,
    0x006600, 0x009900, 0x00CC00, 0x00FF00, 0x000033, 0x000066,
    0x000099, 0x0000CC, 0x0000FF, 0x333300, 0x666600, 0x999900,
    0xCCCC00, 0xFFFF00, 0x003333, 0x006666, 0x009999, 0x00CCCC,
    0x00FFFF, 0x330033, 0x660066, 0x990099, 0xCC00CC, 0xFF00FF,
    0xFFFF33, 0xFFFF66, 0xFFFF99, 0xFFFFCC, 0xFF33FF, 0xFF66FF,
    0xFF99FF, 0xFFCCFF, 0x33FFFF, 0x66FFFF, 0x99FFFF, 0xCCFFFF,
    0xCCCC33, 0xCCCC66, 0xCCCC99, 0xCCCCFF, 0xCC33CC, 0xCC66CC,
    0xCC99CC, 0xCCFFCC, 0x33CCCC, 0x66CCCC, 0x99CCCC, 0xFFCCCC,
    0x999933, 0x999966, 0x9999CC, 0x9999FF, 0x993399, 0x996699,
    0x99CC99, 0x99FF99, 0x339999, 0x669999, 0xCC9999, 0xFF9999,
    0x666633, 0x666699, 0x6666CC, 0x6666FF, 0x663366, 0x669966,
    0x66CC66, 0x66FF66, 0x336666, 0x996666, 0xCC6666, 0xFF6666,
    0x333366, 0x333399, 0x3333CC, 0x3333FF, 0x336633, 0x339933,
    0x33CC33, 0x33FF33, 0x663333, 0x993333, 0xCC3333, 0xFF3333,
    0x003366, 0x336600, 0x660033, 0x006633, 0x330066, 0x663300,
    0x336699, 0x669933, 0x993366, 0x339966, 0x663399, 0x996633,
    0x6699CC, 0x99CC66, 0xCC6699, 0x66CC99, 0x9966CC, 0xCC9966,
    0x99CCFF, 0xCCFF99, 0xFF99CC, 0x99FFCC, 0xCC99FF, 0xFFCC99,
    0x111111, 0x222222, 0x444444, 0x555555, 0xAAAAAA, 0xBBBBBB,
    0xDDDDDD, 0xEEEEEE
}

Definition at line 480 of file flashsv.c.

Referenced by flashsv2_decode_init().

AVCodec ff_flashsv_decoder

Initial value:

 {
    .name           = "flashsv",
    .type           = AVMEDIA_TYPE_VIDEO,
    .id             = CODEC_ID_FLASHSV,
    .priv_data_size = sizeof(FlashSVContext),
    .init           = flashsv_decode_init,
    .close          = flashsv_decode_end,
    .decode         = flashsv_decode_frame,
    .capabilities   = CODEC_CAP_DR1,
    .pix_fmts       = (const enum PixelFormat[]){PIX_FMT_BGR24, PIX_FMT_NONE},
    .long_name      = NULL_IF_CONFIG_SMALL("Flash Screen Video v1"),
}

Definition at line 465 of file flashsv.c.