libavcodec/motionpixels.c File Reference

#include "avcodec.h"
#include "bitstream.h"
#include "dsputil.h"

Go to the source code of this file.

Data Structures
struct	YuvPixel
struct	HuffCode
struct	MotionPixelsContext
Defines
#define	MAX_HUFF_CODES   16
Functions
static int	mp_yuv_to_rgb (int y, int v, int u, int clip_rgb)
static void	mp_set_zero_yuv (YuvPixel *p)
static void	mp_build_rgb_yuv_table (YuvPixel *p)
static av_cold int	mp_decode_init (AVCodecContext *avctx)
static void	mp_read_changes_map (MotionPixelsContext *mp, GetBitContext *gb, int count, int bits_len, int read_color)
static void	mp_get_code (MotionPixelsContext *mp, GetBitContext *gb, int size, int code)
static void	mp_read_codes_table (MotionPixelsContext *mp, GetBitContext *gb)
static int	mp_gradient (MotionPixelsContext *mp, int component, int v)
static YuvPixel	mp_get_yuv_from_rgb (MotionPixelsContext *mp, int x, int y)
static void	mp_set_rgb_from_yuv (MotionPixelsContext *mp, int x, int y, const YuvPixel *p)
static int	mp_get_vlc (MotionPixelsContext *mp, GetBitContext *gb)
static void	mp_decode_line (MotionPixelsContext *mp, GetBitContext *gb, int y)
static void	mp_decode_frame_helper (MotionPixelsContext *mp, GetBitContext *gb)
static int	mp_decode_frame (AVCodecContext *avctx, void *data, int *data_size, const uint8_t *buf, int buf_size)
static av_cold int	mp_decode_end (AVCodecContext *avctx)
Variables
static YuvPixel	mp_rgb_yuv_table [1<< 15]
AVCodec	motionpixels_decoder

---

Define Documentation

#define MAX_HUFF_CODES   16

Definition at line 26 of file motionpixels.c.

Referenced by mp_get_code().

---

Function Documentation

static void mp_build_rgb_yuv_table

(

YuvPixel *

p

)

[static]

Definition at line 84 of file motionpixels.c.

Referenced by mp_decode_init().

static av_cold int mp_decode_end

(

AVCodecContext *

avctx

)

[static]

Definition at line 345 of file motionpixels.c.

static int mp_decode_frame	(	AVCodecContext *	avctx,
		void *	data,
		int *	data_size,
		const uint8_t *	buf,
		int	buf_size
	)			[static]

Definition at line 288 of file motionpixels.c.

Referenced by decode_frame().

static void mp_decode_frame_helper	(	MotionPixelsContext *	mp,
		GetBitContext *	gb
	)			[static]

Definition at line 261 of file motionpixels.c.

Referenced by mp_decode_frame().

static av_cold int mp_decode_init

(

AVCodecContext *

avctx

)

[static]

Definition at line 102 of file motionpixels.c.

static void mp_decode_line	(	MotionPixelsContext *	mp,
		GetBitContext *	gb,
		int	y
	)			[static]

Definition at line 214 of file motionpixels.c.

Referenced by mp_decode_frame_helper().

static void mp_get_code	(	MotionPixelsContext *	mp,
		GetBitContext *	gb,
		int	size,
		int	code
	)			[static]

Definition at line 147 of file motionpixels.c.

Referenced by mp_read_codes_table().

static int mp_get_vlc	(	MotionPixelsContext *	mp,
		GetBitContext *	gb
	)			[static]

Definition at line 206 of file motionpixels.c.

Referenced by mp_decode_frame_helper(), and mp_decode_line().

static YuvPixel mp_get_yuv_from_rgb	(	MotionPixelsContext *	mp,
		int	x,
		int	y
	)			[static]

Definition at line 190 of file motionpixels.c.

Referenced by mp_decode_frame_helper(), and mp_decode_line().

static int mp_gradient	(	MotionPixelsContext *	mp,
		int	component,
		int	v
	)			[static]

Definition at line 181 of file motionpixels.c.

Referenced by mp_decode_frame_helper(), and mp_decode_line().

static void mp_read_changes_map	(	MotionPixelsContext *	mp,
		GetBitContext *	gb,
		int	count,
		int	bits_len,
		int	read_color
	)			[static]

Definition at line 118 of file motionpixels.c.

Referenced by mp_decode_frame().

static void mp_read_codes_table	(	MotionPixelsContext *	mp,
		GetBitContext *	gb
	)			[static]

Definition at line 166 of file motionpixels.c.

Referenced by mp_decode_frame().

static void mp_set_rgb_from_yuv	(	MotionPixelsContext *	mp,
		int	x,
		int	y,
		const YuvPixel *	p
	)			[static]

Definition at line 198 of file motionpixels.c.

Referenced by mp_decode_frame_helper(), and mp_decode_line().

static void mp_set_zero_yuv

(

YuvPixel *

p

)

[static]

Definition at line 70 of file motionpixels.c.

Referenced by mp_build_rgb_yuv_table().

static int mp_yuv_to_rgb	(	int	y,
		int	v,
		int	u,
		int	clip_rgb
	)			[static]

Definition at line 56 of file motionpixels.c.

Referenced by mp_build_rgb_yuv_table(), and mp_set_rgb_from_yuv().

---

Variable Documentation

AVCodec motionpixels_decoder

Initial value:

 {
    "motionpixels",
    CODEC_TYPE_VIDEO,
    CODEC_ID_MOTIONPIXELS,
    sizeof(MotionPixelsContext),
    mp_decode_init,
    NULL,
    mp_decode_end,
    mp_decode_frame,
    CODEC_CAP_DR1,
    .long_name = NULL_IF_CONFIG_SMALL("Motion Pixels video"),
}

Definition at line 359 of file motionpixels.c.

YuvPixel mp_rgb_yuv_table[1<< 15] [static]

Definition at line 54 of file motionpixels.c.