wmv2.c File Reference

---

Detailed Description

wmv2 codec.

Definition in file wmv2.c.

Go to the source code of this file.

Classes
struct	Wmv2Context
Functions
static void	wmv2_common_init (Wmv2Context *w)
static int	encode_ext_header (Wmv2Context *w)
static int	wmv2_encode_init (AVCodecContext *avctx)
static int	wmv2_encode_end (AVCodecContext *avctx)
int	ff_wmv2_encode_picture_header (MpegEncContext *s, int picture_number)
void	ff_wmv2_encode_mb (MpegEncContext *s, DCTELEM block[6][64], int motion_x, int motion_y)
static void	parse_mb_skip (Wmv2Context *w)
static int	decode_ext_header (Wmv2Context *w)
int	ff_wmv2_decode_picture_header (MpegEncContext *s)
int	ff_wmv2_decode_secondary_picture_header (MpegEncContext *s)
static int	wmv2_decode_motion (Wmv2Context *w, int *mx_ptr, int *my_ptr)
static int16_t *	wmv2_pred_motion (Wmv2Context *w, int *px, int *py)
static int	wmv2_decode_inter_block (Wmv2Context *w, DCTELEM *block, int n, int cbp)
static void	wmv2_add_block (Wmv2Context *w, DCTELEM *block1, uint8_t *dst, int stride, int n)
void	ff_wmv2_add_mb (MpegEncContext *s, DCTELEM block1[6][64], uint8_t *dest_y, uint8_t *dest_cb, uint8_t *dest_cr)
void	ff_mspel_motion (MpegEncContext *s, uint8_t *dest_y, uint8_t *dest_cb, uint8_t *dest_cr, uint8_t **ref_picture, op_pixels_func(*pix_op)[4], int motion_x, int motion_y, int h)
int	ff_wmv2_decode_mb (MpegEncContext *s, DCTELEM block[6][64])
static int	wmv2_decode_init (AVCodecContext *avctx)
Variables
AVCodec	wmv2_decoder
AVCodec	wmv2_encoder

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Function Documentation

static void wmv2_common_init

(

Wmv2Context *

w

)

[static]

Definition at line 61 of file wmv2.c.

Referenced by wmv2_decode_init(), and wmv2_encode_init().

static int encode_ext_header

(

Wmv2Context *

w

)

[static]

Definition at line 70 of file wmv2.c.

Referenced by wmv2_encode_init().

static int wmv2_encode_init

(

AVCodecContext *

avctx

)

[static]

Definition at line 95 of file wmv2.c.

static int wmv2_encode_end

(

AVCodecContext *

avctx

)

[static]

Definition at line 111 of file wmv2.c.

int ff_wmv2_encode_picture_header	(	MpegEncContext *	s,
		int	picture_number
	)

Definition at line 123 of file wmv2.c.

Referenced by encode_picture().

void ff_wmv2_encode_mb	(	MpegEncContext *	s,
		DCTELEM	block[6][64],
		int	motion_x,
		int	motion_y
	)

Definition at line 204 of file wmv2.c.

Referenced by encode_mb_internal().

static void parse_mb_skip

(

Wmv2Context *

w

)

[static]

Definition at line 273 of file wmv2.c.

Referenced by ff_wmv2_decode_secondary_picture_header().

static int decode_ext_header

(

Wmv2Context *

w

)

[static]

Definition at line 323 of file wmv2.c.

Referenced by ff_wmv2_decode_picture_header().

int ff_wmv2_decode_picture_header

(

MpegEncContext *

s

)

Definition at line 355 of file wmv2.c.

Referenced by ff_h263_decode_frame().

int ff_wmv2_decode_secondary_picture_header

(

MpegEncContext *

s

)

Definition at line 385 of file wmv2.c.

Referenced by ff_h263_decode_frame().

static int wmv2_decode_motion	(	Wmv2Context *	w,
		int *	mx_ptr,
		int *	my_ptr
	)			[inline, static]

Definition at line 485 of file wmv2.c.

Referenced by ff_wmv2_decode_mb().

static int16_t* wmv2_pred_motion	(	Wmv2Context *	w,
		int *	px,
		int *	py
	)			[static]

Definition at line 503 of file wmv2.c.

Referenced by ff_wmv2_decode_mb().

static int wmv2_decode_inter_block	(	Wmv2Context *	w,
		DCTELEM *	block,
		int	n,
		int	cbp
	)			[inline, static]

Definition at line 547 of file wmv2.c.

Referenced by ff_wmv2_decode_mb().

static void wmv2_add_block	(	Wmv2Context *	w,
		DCTELEM *	block1,
		uint8_t *	dst,
		int	stride,
		int	n
	)			[static]

Definition at line 591 of file wmv2.c.

Referenced by ff_wmv2_add_mb().

void ff_wmv2_add_mb	(	MpegEncContext *	s,
		DCTELEM	block1[6][64],
		uint8_t *	dest_y,
		uint8_t *	dest_cb,
		uint8_t *	dest_cr
	)

Definition at line 615 of file wmv2.c.

Referenced by MPV_decode_mb_internal().

void ff_mspel_motion	(	MpegEncContext *	s,
		uint8_t *	dest_y,
		uint8_t *	dest_cb,
		uint8_t *	dest_cr,
		uint8_t **	ref_picture,
		op_pixels_func(*)	pix_op[4],
		int	motion_x,
		int	motion_y,
		int	h
	)

Definition at line 629 of file wmv2.c.

Referenced by MPV_motion().

int ff_wmv2_decode_mb	(	MpegEncContext *	s,
		DCTELEM	block[6][64]
	)

Definition at line 718 of file wmv2.c.

Referenced by ff_msmpeg4_decode_init().

static int wmv2_decode_init

(

AVCodecContext *

avctx

)

[static]

Definition at line 829 of file wmv2.c.

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Variable Documentation

AVCodec wmv2_decoder

Initial value:

 {
    "wmv2",
    CODEC_TYPE_VIDEO,
    CODEC_ID_WMV2,
    sizeof(Wmv2Context),
    wmv2_decode_init,
    NULL,
    ff_h263_decode_end,
    ff_h263_decode_frame,
    CODEC_CAP_DRAW_HORIZ_BAND | CODEC_CAP_DR1,
}

Definition at line 847 of file wmv2.c.

AVCodec wmv2_encoder

Initial value:

 {
    "wmv2",
    CODEC_TYPE_VIDEO,
    CODEC_ID_WMV2,
    sizeof(Wmv2Context),
    wmv2_encode_init,
    MPV_encode_picture,
    MPV_encode_end,
    .pix_fmts= (enum PixelFormat[]){PIX_FMT_YUV420P, -1},
}

Definition at line 861 of file wmv2.c.