cmodel_yuv422.c

这个库实现了录象功能

/*******************************************************************************
 cmodel_yuv422.c

 libquicktime - A library for reading and writing quicktime/avi/mp4 files.
 http://libquicktime.sourceforge.net

 Copyright (C) 2002 Heroine Virtual Ltd.
 Copyright (C) 2002-2007 Members of the libquicktime project.

 This library is free software; you can redistribute it and/or modify it under
 the terms of the GNU Lesser General Public License as published by the Free
 Software Foundation; either version 2.1 of the License, or (at your option)
 any later version.

 This library is distributed in the hope that it will be useful, but WITHOUT
 ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
 FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License for more
 details.

 You should have received a copy of the GNU Lesser General Public License along
 with this library; if not, write to the Free Software Foundation, Inc., 51
 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*******************************************************************************/ 

#define HAVE_RGB_16_TO_RGB_24
#define HAVE_RGB_TO_YUV
#define HAVE_RGB_TO_YUVJ
#define HAVE_YUV_TO_RGB
#define HAVE_YUVJ_TO_RGB
#define HAVE_YUV_8_TO_YUVJ
#define HAVE_YUVJ_TO_YUV_8

#include "lqt_private.h"
#include "cmodel_permutation.h"

#define TRANSFER_FRAME_DEFAULT(output, \
	input, \
	y_in_offset, \
	u_in_offset, \
	v_in_offset, \
	input_column) \
{ \
	register int i, j; \
 \
	switch(out_colormodel) \
	{ \
		case BC_BGR565: \
			TRANSFER_FRAME_HEAD_16 \
                          transfer_YUV422_to_BGR565((output), (input), (input_column)); \
			TRANSFER_FRAME_TAIL \
			break; \
		case BC_RGB565: \
			TRANSFER_FRAME_HEAD_16 \
                          transfer_YUV422_to_RGB565((output), (input), (input_column)); \
			TRANSFER_FRAME_TAIL \
			break; \
		case BC_RGB888:      \
			TRANSFER_FRAME_HEAD \
			transfer_YUV422_to_RGB888((output), (input), (input_column)); \
			TRANSFER_FRAME_TAIL \
			break; \
		case BC_RGBA8888:      \
			TRANSFER_FRAME_HEAD \
			transfer_YUV422_to_RGBA8888((output), (input), (input_column)); \
			TRANSFER_FRAME_TAIL \
			break; \
		case BC_YUVA8888:      \
			TRANSFER_FRAME_HEAD \
			transfer_YUV422_to_YUVA8888((output), (input), (input_column)); \
			TRANSFER_FRAME_TAIL \
			break; \
		case BC_RGB161616:      \
			TRANSFER_FRAME_HEAD_16 \
			transfer_YUV422_to_RGB161616((output), (input), (input_column)); \
			TRANSFER_FRAME_TAIL \
			break; \
		case BC_RGBA16161616:      \
			TRANSFER_FRAME_HEAD_16 \
			transfer_YUV422_to_RGBA16161616((output), (input), (input_column)); \
			TRANSFER_FRAME_TAIL \
			break; \
		case BC_BGR888:      \
			TRANSFER_FRAME_HEAD \
			transfer_YUV422_to_BGR888((output), (input), (input_column)); \
			TRANSFER_FRAME_TAIL \
			break; \
		case BC_BGR8888: \
			TRANSFER_FRAME_HEAD \
			transfer_YUV422_to_BGR8888((output), (input), (input_column)); \
			TRANSFER_FRAME_TAIL \
			break; \
		case BC_YUV422P: \
			TRANSFER_YUV422P_OUT_HEAD \
			transfer_YUV422_to_YUV422P(output_y, \
				output_u, \
				output_v, \
				(input), \
				j); \
			TRANSFER_FRAME_TAIL \
			break; \
		case BC_YUVJ422P: \
			TRANSFER_YUV422P_OUT_HEAD \
			transfer_YUV422_to_YUVJ422P(output_y, \
				output_u, \
				output_v, \
				(input), \
				j); \
			TRANSFER_FRAME_TAIL \
			break; \
		case BC_YUV422: \
			TRANSFER_FRAME_HEAD \
			transfer_YUV422_to_YUV422((output), \
				(input), \
				j); \
			TRANSFER_FRAME_TAIL \
			break; \
		case BC_YUV420P: \
			TRANSFER_YUV420P_OUT_HEAD \
			transfer_YUV422_to_YUV420P(output_y, \
				output_u, \
				output_v, \
				(input), \
				j, \
				i); \
			TRANSFER_FRAME_TAIL \
			break; \
	} \
}

void cmodel_yuv422(PERMUTATION_ARGS)
{
	if(scale)
	{
		TRANSFER_FRAME_DEFAULT(&output_row, 
			input_row + ((column_table[j] * in_pixelsize) & 0xfffffffc),
			0,
			0,
			0,
			column_table[j]);
	}
	else
	{
		TRANSFER_FRAME_DEFAULT(&output_row, 
			input_row + ((j * in_pixelsize) & 0xfffffffc),
			0,
			0,
			0,
			j);
	}
}