vmnc.c File Reference

VMware Screen Codec (VMnc) decoder As Alex Beregszaszi discovered, this is effectively RFB data dump. More...

#include "libavutil/attributes.h"
#include "libavutil/common.h"
#include "libavutil/mem.h"
#include "avcodec.h"
#include "codec_internal.h"
#include "decode.h"
#include "bytestream.h"

Go to the source code of this file.

Data Structures
struct	VmncContext

Enumerations
enum	EncTypes {   MAGIC_WMVd = 0x574D5664 , MAGIC_WMVe , MAGIC_WMVf , MAGIC_WMVg ,   MAGIC_WMVh , MAGIC_WMVi , MAGIC_WMVj }
enum	HexTile_Flags {   HT_RAW = 1 , HT_BKG = 2 , HT_FG = 4 , HT_SUB = 8 ,   HT_CLR = 16 }

Functions
static av_always_inline int	vmnc_get_pixel (GetByteContext *gb, int bpp, int be)
static void	load_cursor (VmncContext *c)
static void	put_cursor (uint8_t *dst, int stride, VmncContext *c, int dx, int dy)
static av_always_inline void	paint_rect (uint8_t *dst, int dx, int dy, int w, int h, int color, int bpp, int stride)
static av_always_inline void	paint_raw (uint8_t *dst, int w, int h, GetByteContext *gb, int bpp, int be, int stride)
static int	decode_hextile (VmncContext *c, uint8_t *dst, GetByteContext *gb, int w, int h, int stride)
static void	reset_buffers (VmncContext *c)
static int	decode_frame (AVCodecContext *avctx, AVFrame *rframe, int *got_frame, AVPacket *avpkt)
static av_cold int	decode_init (AVCodecContext *avctx)
static av_cold int	decode_end (AVCodecContext *avctx)

Variables
const FFCodec	ff_vmnc_decoder

Detailed Description

VMware Screen Codec (VMnc) decoder As Alex Beregszaszi discovered, this is effectively RFB data dump.

Definition in file vmnc.c.

Enumeration Type Documentation

EncTypes

enum EncTypes

Enumerator
MAGIC_WMVd
MAGIC_WMVe
MAGIC_WMVf
MAGIC_WMVg
MAGIC_WMVh
MAGIC_WMVi
MAGIC_WMVj

Definition at line 36 of file vmnc.c.

HexTile_Flags

enum HexTile_Flags

Enumerator
HT_RAW
HT_BKG
HT_FG
HT_SUB
HT_CLR

Definition at line 46 of file vmnc.c.

Function Documentation

vmnc_get_pixel()

static av_always_inline int vmnc_get_pixel ( GetByteContext * gb, int bpp, int be )

static

Definition at line 77 of file vmnc.c.

Referenced by decode_hextile(), load_cursor(), and paint_raw().

load_cursor()

static void load_cursor ( VmncContext * c )

static

Definition at line 95 of file vmnc.c.

Referenced by decode_frame().

put_cursor()

static void put_cursor ( uint8_t * dst, int stride, VmncContext * c, int dx, int dy )

static

Definition at line 130 of file vmnc.c.

Referenced by decode_frame().

paint_rect()

static av_always_inline void paint_rect ( uint8_t * dst, int dx, int dy, int w, int h, int color, int bpp, int stride )

static

Definition at line 190 of file vmnc.c.

Referenced by decode_hextile().

paint_raw()

static av_always_inline void paint_raw ( uint8_t * dst, int w, int h, GetByteContext * gb, int bpp, int be, int stride )

static

Definition at line 220 of file vmnc.c.

Referenced by decode_frame(), and decode_hextile().

decode_hextile()

static int decode_hextile ( VmncContext * c, uint8_t * dst, GetByteContext * gb, int w, int h, int stride )

static

Definition at line 244 of file vmnc.c.

Referenced by decode_frame().

reset_buffers()

static void reset_buffers ( VmncContext * c )

static

Definition at line 315 of file vmnc.c.

Referenced by decode_frame().

decode_frame()

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

static

Definition at line 325 of file vmnc.c.

decode_init()

static av_cold int decode_init ( AVCodecContext * avctx )

static

Definition at line 526 of file vmnc.c.

decode_end()

static av_cold int decode_end ( AVCodecContext * avctx )

static

Definition at line 563 of file vmnc.c.

Variable Documentation

ff_vmnc_decoder

const FFCodec ff_vmnc_decoder

Initial value:

= {
    .p.name         = "vmnc",
    CODEC_LONG_NAME("VMware Screen Codec / VMware Video"),
    .p.type         = AVMEDIA_TYPE_VIDEO,
    .p.id           = AV_CODEC_ID_VMNC,
    .priv_data_size = sizeof(VmncContext),
    .init           = decode_init,
    .close          = decode_end,
    FF_CODEC_DECODE_CB(decode_frame),
    .p.capabilities = AV_CODEC_CAP_DR1,
}

Definition at line 575 of file vmnc.c.