libavcodec/ulti.c File Reference

IBM Ultimotion Video Decoder. More...

#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include "avcodec.h"
#include "bytestream.h"
#include "ulti_cb.h"

Go to the source code of this file.

Data Structures
struct	UltimotionDecodeContext
Functions
static av_cold int	ulti_decode_init (AVCodecContext *avctx)
static av_cold int	ulti_decode_end (AVCodecContext *avctx)
static void	ulti_convert_yuv (AVFrame *frame, int x, int y, uint8_t *luma, int chroma)
static void	ulti_pattern (AVFrame *frame, int x, int y, int f0, int f1, int Y0, int Y1, int chroma)
static void	ulti_grad (AVFrame *frame, int x, int y, uint8_t *Y, int chroma, int angle)
static int	ulti_decode_frame (AVCodecContext *avctx, void *data, int *data_size, AVPacket *avpkt)
Variables
static const int	block_coords [8]
static const int	angle_by_index [4] = { 0, 2, 6, 12}
static const uint8_t	ulti_lumas [64]
static const uint8_t	ulti_chromas [16]
AVCodec	ff_ulti_decoder

---

Detailed Description

IBM Ultimotion Video Decoder.

Definition in file ulti.c.

---

Function Documentation

static void ulti_convert_yuv	(	AVFrame *	frame,
		int	x,
		int	y,
		uint8_t *	luma,
		int	chroma
	)			[static]

Definition at line 91 of file ulti.c.

Referenced by ulti_decode_frame(), ulti_grad(), and ulti_pattern().

static av_cold int ulti_decode_end

(

AVCodecContext *

avctx

)

[static]

Definition at line 59 of file ulti.c.

static int ulti_decode_frame	(	AVCodecContext *	avctx,
		void *	data,
		int *	data_size,
		AVPacket *	avpkt
	)			[static]

Definition at line 211 of file ulti.c.

static av_cold int ulti_decode_init

(

AVCodecContext *

avctx

)

[static]

Definition at line 43 of file ulti.c.

static void ulti_grad	(	AVFrame *	frame,
		int	x,
		int	y,
		uint8_t *	Y,
		int	chroma,
		int	angle
	)			[static]

Definition at line 138 of file ulti.c.

Referenced by ulti_decode_frame().

static void ulti_pattern	(	AVFrame *	frame,
		int	x,
		int	y,
		int	f0,
		int	f1,
		int	Y0,
		int	Y1,
		int	chroma
	)			[static]

Definition at line 115 of file ulti.c.

Referenced by ulti_decode_frame().

---

Variable Documentation

const int angle_by_index[4] = { 0, 2, 6, 12} [static]

Definition at line 72 of file ulti.c.

Referenced by ulti_decode_frame().

const int block_coords[8] [static]

Initial value:

 
    { 0, 0, 0, 4, 4, 4, 4, 0}

Definition at line 69 of file ulti.c.

Referenced by ulti_decode_frame().

AVCodec ff_ulti_decoder

Initial value:

 {
    "ultimotion",
    AVMEDIA_TYPE_VIDEO,
    CODEC_ID_ULTI,
    sizeof(UltimotionDecodeContext),
    ulti_decode_init,
    NULL,
    ulti_decode_end,
    ulti_decode_frame,
    CODEC_CAP_DR1,
    NULL,
    .long_name = NULL_IF_CONFIG_SMALL("IBM UltiMotion"),
}

Definition at line 405 of file ulti.c.

const uint8_t ulti_chromas[16] [static]

Initial value:

    { 0x60, 0x67, 0x6D, 0x73, 0x7A, 0x80, 0x86, 0x8D,
      0x93, 0x99, 0xA0, 0xA6, 0xAC, 0xB3, 0xB9, 0xC0}

Definition at line 85 of file ulti.c.

Referenced by ulti_convert_yuv().

const uint8_t ulti_lumas[64] [static]

Initial value:

    { 0x10, 0x13, 0x17, 0x1A, 0x1E, 0x21, 0x25, 0x28,
      0x2C, 0x2F, 0x33, 0x36, 0x3A, 0x3D, 0x41, 0x44,
      0x48, 0x4B, 0x4F, 0x52, 0x56, 0x59, 0x5C, 0x60,
      0x63, 0x67, 0x6A, 0x6E, 0x71, 0x75, 0x78, 0x7C,
      0x7F, 0x83, 0x86, 0x8A, 0x8D, 0x91, 0x94, 0x98,
      0x9B, 0x9F, 0xA2, 0xA5, 0xA9, 0xAC, 0xB0, 0xB3,
      0xB7, 0xBA, 0xBE, 0xC1, 0xC5, 0xC8, 0xCC, 0xCF,
      0xD3, 0xD6, 0xDA, 0xDD, 0xE1, 0xE4, 0xE8, 0xEB}

Definition at line 75 of file ulti.c.

Referenced by ulti_convert_yuv().