flashsvenc.c File Reference

#include <stdint.h>
#include <zlib.h>
#include "libavutil/buffer.h"
#include "avcodec.h"
#include "codec_internal.h"
#include "encode.h"
#include "put_bits.h"
#include "bytestream.h"

Go to the source code of this file.

Data Structures
struct	FlashSVContext

Macros
#define	BLOCK_WIDTH   (4 * 16U)
#define	BLOCK_HEIGHT   (4 * 16U)

Functions
static int	copy_region_enc (const uint8_t *sptr, uint8_t *dptr, int dx, int dy, int h, int w, int stride, const uint8_t *pfptr)
static av_cold int	flashsv_encode_end (AVCodecContext *avctx)
static av_cold int	flashsv_encode_init (AVCodecContext *avctx)
static int	encode_bitstream (FlashSVContext *s, const AVFrame *p, uint8_t *buf, int buf_size, int block_width, int block_height, const uint8_t *previous_frame, int *I_frame)
static int	flashsv_encode_frame (AVCodecContext *avctx, AVPacket *pkt, const AVFrame *pict, int *got_packet)

Variables
const FFCodec	ff_flashsv_encoder

Detailed Description

Flash Screen Video encoder

Author

Alex Beregszaszi

Benjamin Larsson

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 flashsvenc.c.

Macro Definition Documentation

BLOCK_WIDTH

#define BLOCK_WIDTH   (4 * 16U)

Definition at line 59 of file flashsvenc.c.

BLOCK_HEIGHT

#define BLOCK_HEIGHT   (4 * 16U)

Definition at line 60 of file flashsvenc.c.

Function Documentation

copy_region_enc()

static int copy_region_enc ( const uint8_t *  sptr, uint8_t *  dptr, int  dx, int  dy, int  h, int  w, int  stride, const uint8_t *  pfptr  )

static

Definition at line 73 of file flashsvenc.c.

Referenced by encode_bitstream().

flashsv_encode_end()

static av_cold int flashsv_encode_end ( AVCodecContext *  avctx )

static

Definition at line 93 of file flashsvenc.c.

flashsv_encode_init()

static av_cold int flashsv_encode_init ( AVCodecContext *  avctx )

static

Definition at line 102 of file flashsvenc.c.

encode_bitstream()

static int encode_bitstream ( FlashSVContext *  s, const AVFrame *  p, uint8_t *  buf, int  buf_size, int  block_width, int  block_height, const uint8_t *  previous_frame, int *  I_frame  )

static

Definition at line 133 of file flashsvenc.c.

Referenced by flashsv_encode_frame().

flashsv_encode_frame()

static int flashsv_encode_frame ( AVCodecContext *  avctx, AVPacket *  pkt, const AVFrame *  pict, int *  got_packet  )

static

Definition at line 207 of file flashsvenc.c.

Variable Documentation

ff_flashsv_encoder

const FFCodec ff_flashsv_encoder

Initial value:

= {
    .p.name         = "flashsv",
    CODEC_LONG_NAME("Flash Screen Video"),
    .p.type         = AVMEDIA_TYPE_VIDEO,
    .p.id           = AV_CODEC_ID_FLASHSV,
    .p.capabilities = AV_CODEC_CAP_DR1 | AV_CODEC_CAP_ENCODER_REORDERED_OPAQUE,
    .priv_data_size = sizeof(FlashSVContext),
    .init           = flashsv_encode_init,
    FF_CODEC_ENCODE_CB(flashsv_encode_frame),
    .close          = flashsv_encode_end,
    .p.pix_fmts     = (const enum AVPixelFormat[]){ AV_PIX_FMT_BGR24, AV_PIX_FMT_NONE },
}

Definition at line 255 of file flashsvenc.c.