rasc.c File Reference

#include <stdio.h>
#include <string.h>
#include "libavutil/mem.h"
#include "libavutil/opt.h"
#include "avcodec.h"
#include "bytestream.h"
#include "codec_internal.h"
#include "decode.h"
#include "zlib_wrapper.h"
#include <zlib.h>

Go to the source code of this file.

Data Structures
struct	RASCContext

Macros
#define	KBND   MKTAG('K', 'B', 'N', 'D')
#define	FINT   MKTAG('F', 'I', 'N', 'T')
#define	INIT   MKTAG('I', 'N', 'I', 'T')
#define	BNDL   MKTAG('B', 'N', 'D', 'L')
#define	KFRM   MKTAG('K', 'F', 'R', 'M')
#define	DLTA   MKTAG('D', 'L', 'T', 'A')
#define	MOUS   MKTAG('M', 'O', 'U', 'S')
#define	MPOS   MKTAG('M', 'P', 'O', 'S')
#define	MOVE   MKTAG('M', 'O', 'V', 'E')
#define	EMPT   MKTAG('E', 'M', 'P', 'T')
#define	NEXT_LINE

Functions
static void	clear_plane (AVCodecContext *avctx, AVFrame *frame)
static void	copy_plane (AVCodecContext *avctx, AVFrame *src, AVFrame *dst)
static int	init_frames (AVCodecContext *avctx)
static int	decode_fint (AVCodecContext *avctx, const AVPacket *avpkt, unsigned size)
static int	decode_zlib (AVCodecContext *avctx, const AVPacket *avpkt, unsigned size, unsigned uncompressed_size)
static int	decode_move (AVCodecContext *avctx, const AVPacket *avpkt, unsigned size)
static int	dlta_room (unsigned cx, unsigned w, unsigned bpp, unsigned need)
static int	decode_dlta (AVCodecContext *avctx, const AVPacket *avpkt, unsigned size)
static int	decode_kfrm (AVCodecContext *avctx, const AVPacket *avpkt, unsigned size)
static int	decode_mous (AVCodecContext *avctx, const AVPacket *avpkt, unsigned size)
static int	decode_mpos (AVCodecContext *avctx, const AVPacket *avpkt, unsigned size)
static void	draw_cursor (AVCodecContext *avctx)
static int	decode_frame (AVCodecContext *avctx, AVFrame *frame, int *got_frame, AVPacket *avpkt)
static av_cold int	decode_init (AVCodecContext *avctx)
static av_cold int	decode_close (AVCodecContext *avctx)
static av_cold void	decode_flush (AVCodecContext *avctx)

Variables
static const AVOption	options []
static const AVClass	rasc_decoder_class
const FFCodec	ff_rasc_decoder

Macro Definition Documentation

KBND

#define KBND   MKTAG('K', 'B', 'N', 'D')

Definition at line 37 of file rasc.c.

Referenced by decode_frame().

FINT

#define FINT   MKTAG('F', 'I', 'N', 'T')

Definition at line 38 of file rasc.c.

Referenced by decode_frame().

INIT

#define INIT   MKTAG('I', 'N', 'I', 'T')

Definition at line 39 of file rasc.c.

Referenced by decode_frame().

BNDL

#define BNDL   MKTAG('B', 'N', 'D', 'L')

Definition at line 40 of file rasc.c.

Referenced by decode_frame().

KFRM

#define KFRM   MKTAG('K', 'F', 'R', 'M')

Definition at line 41 of file rasc.c.

Referenced by decode_frame().

DLTA

#define DLTA   MKTAG('D', 'L', 'T', 'A')

Definition at line 42 of file rasc.c.

Referenced by decode_frame().

MOUS

#define MOUS   MKTAG('M', 'O', 'U', 'S')

Definition at line 43 of file rasc.c.

Referenced by decode_frame().

MPOS

#define MPOS   MKTAG('M', 'P', 'O', 'S')

Definition at line 44 of file rasc.c.

Referenced by decode_frame().

MOVE

#define MOVE   MKTAG('M', 'O', 'V', 'E')

Definition at line 45 of file rasc.c.

Referenced by decode_frame().

EMPT

#define EMPT   MKTAG('E', 'M', 'P', 'T')

Definition at line 46 of file rasc.c.

Referenced by decode_frame().

NEXT_LINE

#define NEXT_LINE

Value:

    if (cx >= w * s->bpp) {              \
        cx = 0;                          \
        cy--;                            \
        b1 -= s->frame1->linesize[0];    \
        b2 -= s->frame2->linesize[0];    \
    }                                    \
    len--;

Definition at line 328 of file rasc.c.

Referenced by decode_dlta().

Function Documentation

clear_plane()

static void clear_plane ( AVCodecContext * avctx, AVFrame * frame )

static

Definition at line 70 of file rasc.c.

Referenced by decode_fint(), decode_flush(), and init_frames().

copy_plane()

static void copy_plane ( AVCodecContext * avctx, AVFrame * src, AVFrame * dst )

static

Definition at line 84 of file rasc.c.

Referenced by decode_frame(), and image_copy().

init_frames()

static int init_frames ( AVCodecContext * avctx )

static

Definition at line 97 of file rasc.c.

Referenced by decode_fint().

decode_fint()

static int decode_fint ( AVCodecContext * avctx, const AVPacket * avpkt, unsigned size )

static

Definition at line 116 of file rasc.c.

Referenced by decode_frame(), and decode_kfrm().

decode_zlib()

static int decode_zlib ( AVCodecContext * avctx, const AVPacket * avpkt, unsigned size, unsigned uncompressed_size )

static

Definition at line 176 of file rasc.c.

Referenced by decode_dlta(), decode_mous(), and decode_move().

decode_move()

static int decode_move ( AVCodecContext * avctx, const AVPacket * avpkt, unsigned size )

static

Definition at line 210 of file rasc.c.

Referenced by decode_frame().

dlta_room()

static int dlta_room ( unsigned cx, unsigned w, unsigned bpp, unsigned need )

inlinestatic

Definition at line 323 of file rasc.c.

Referenced by decode_dlta().

decode_dlta()

static int decode_dlta ( AVCodecContext * avctx, const AVPacket * avpkt, unsigned size )

static

Definition at line 337 of file rasc.c.

Referenced by decode_frame().

decode_kfrm()

static int decode_kfrm ( AVCodecContext * avctx, const AVPacket * avpkt, unsigned size )

static

Definition at line 487 of file rasc.c.

Referenced by decode_frame().

decode_mous()

static int decode_mous ( AVCodecContext * avctx, const AVPacket * avpkt, unsigned size )

static

Definition at line 551 of file rasc.c.

Referenced by decode_frame().

decode_mpos()

static int decode_mpos ( AVCodecContext * avctx, const AVPacket * avpkt, unsigned size )

static

Definition at line 591 of file rasc.c.

Referenced by decode_frame().

draw_cursor()

static void draw_cursor ( AVCodecContext * avctx )

static

Definition at line 608 of file rasc.c.

Referenced by decode_frame().

decode_frame()

static int decode_frame ( AVCodecContext * avctx, AVFrame * frame, int * got_frame, AVPacket * avpkt )

static

Definition at line 686 of file rasc.c.

decode_init()

static av_cold int decode_init ( AVCodecContext * avctx )

static

Definition at line 768 of file rasc.c.

decode_close()

static av_cold int decode_close ( AVCodecContext * avctx )

static

Definition at line 780 of file rasc.c.

decode_flush()

static av_cold void decode_flush ( AVCodecContext * avctx )

static

Definition at line 797 of file rasc.c.

Variable Documentation

options

const AVOption options[]

static

Initial value:

= {
{ "skip_cursor", "skip the cursor",  0x42 , AV_OPT_TYPE_BOOL, {.i64 = 0 }, 0, 1, AV_OPT_FLAG_DECODING_PARAM | AV_OPT_FLAG_VIDEO_PARAM },
{ NULL },
}

Definition at line 805 of file rasc.c.

rasc_decoder_class

const AVClass rasc_decoder_class

static

Initial value:

= {
    .class_name = "rasc decoder",
    .item_name  = av_default_item_name,
    .option     = options,
    .version    = LIBAVUTIL_VERSION_INT,
}

Definition at line 810 of file rasc.c.

ff_rasc_decoder

const FFCodec ff_rasc_decoder

Initial value:

= {
    .p.name           = "rasc",
    CODEC_LONG_NAME("RemotelyAnywhere Screen Capture"),
    .p.type           = AVMEDIA_TYPE_VIDEO,
    .p.id             = AV_CODEC_ID_RASC,
    .priv_data_size   = sizeof(RASCContext),
    .init             = decode_init,
    .close            = decode_close,
    FF_CODEC_DECODE_CB(decode_frame),
    .flush            = decode_flush,
    .p.capabilities   = AV_CODEC_CAP_DR1,
    .caps_internal    = FF_CODEC_CAP_INIT_CLEANUP,
    .p.priv_class     = &rasc_decoder_class,
}

Definition at line 817 of file rasc.c.