"atomic bomb" commit. Reorganized OpenCV directory structure
This commit is contained in:
Vadim Pisarevsky
847
modules/highgui/src/cap_xine.cpp
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847
modules/highgui/src/cap_xine.cpp
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@@ -0,0 +1,847 @@
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/*M///////////////////////////////////////////////////////////////////////////////////////
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//
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// IMPORTANT: READ BEFORE DOWNLOADING, COPYING, INSTALLING OR USING.
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//
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// By downloading, copying, installing or using the software you agree to this license.
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// If you do not agree to this license, do not download, install,
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// copy or use the software.
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//
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//
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// Intel License Agreement
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// For Open Source Computer Vision Library
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//
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// Copyright (C) 2000, Intel Corporation, all rights reserved.
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// Third party copyrights are property of their respective owners.
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//
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// Redistribution and use in source and binary forms, with or without modification,
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// are permitted provided that the following conditions are met:
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//
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// * Redistribution's of source code must retain the above copyright notice,
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// this list of conditions and the following disclaimer.
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//
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// * Redistribution's in binary form must reproduce the above copyright notice,
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// this list of conditions and the following disclaimer in the documentation
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// and/or other materials provided with the distribution.
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//
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// * The name of Intel Corporation may not be used to endorse or promote products
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// derived from this software without specific prior written permission.
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//
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// This software is provided by the copyright holders and contributors "as is" and
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// any express or implied warranties, including, but not limited to, the implied
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// warranties of merchantability and fitness for a particular purpose are disclaimed.
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// In no event shall the Intel Corporation or contributors be liable for any direct,
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// indirect, incidental, special, exemplary, or consequential damages
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// (including, but not limited to, procurement of substitute goods or services;
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// loss of use, data, or profits; or business interruption) however caused
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// and on any theory of liability, whether in contract, strict liability,
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// or tort (including negligence or otherwise) arising in any way out of
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// the use of this software, even if advised of the possibility of such damage.
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//
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//M*/
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// Authors: Konstantin Dols <dols@ient.rwth-aachen.de>
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// Mark Asbach <asbach@ient.rwth-aachen.de>
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//
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// Institute of Communications Engineering
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// RWTH Aachen University
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#include "precomp.hpp"
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// required to enable some functions used here...
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#define XINE_ENABLE_EXPERIMENTAL_FEATURES
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#include <cv.h>
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#include <cassert>
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extern "C"
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{
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#include <xine.h>
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//#include <xine/xineutils.h>
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// forward declaration from <xine/xineutils.h>
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const char *xine_get_homedir( void );
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}
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typedef struct CvCaptureAVI_XINE
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{
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/// method call table
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xine_t * xine;
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xine_stream_t * stream;
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xine_video_port_t * vo_port;
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/// frame returned by xine_get_next_video_frame()
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xine_video_frame_t xine_frame;
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IplImage * yuv_frame;
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IplImage * bgr_frame;
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/// image dimansions of the input stream.
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CvSize size;
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/// framenumber of the last frame received from xine_get_next_video_frame().
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/// note: always keep this value updated !!!!
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int frame_number;
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/// framerate of the opened stream
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double frame_rate;
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/// duration of a frame in stream
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double frame_duration;
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/// indicated if input is seekable
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bool seekable;
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}
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CvCaptureAVI_XINE;
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// 4:2:2 interleaved -> BGR
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static void icvYUY2toBGR( CvCaptureAVI_XINE * capture )
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{
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uint8_t * v = capture->xine_frame.data;
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int offset;
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for ( int y = 0; y < capture->yuv_frame->height; y++ )
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{
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offset = y * capture->yuv_frame->widthStep;
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for ( int x = 0; x < capture->yuv_frame->width; x++, offset += 3 )
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{
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capture->yuv_frame->imageData[ offset + 1 ] = v[ 3 ];
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capture->yuv_frame->imageData[ offset + 2 ] = v[ 1 ];
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if ( x & 1 )
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{
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capture->yuv_frame->imageData[ offset ] = v[ 2 ];
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v += 4;
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}
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else
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{
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capture->yuv_frame->imageData[ offset ] = v[ 0 ];
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}
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}
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}
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// convert to BGR
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cvCvtColor( capture->yuv_frame, capture->bgr_frame, CV_YCrCb2BGR );
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}
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// 4:2:0 planary -> BGR
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static void icvYV12toBGR( CvCaptureAVI_XINE * capture )
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{
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IplImage * yuv = capture->yuv_frame;
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int w_Y = capture->size.width;
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int h_Y = capture->size.height;
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int w_UV = w_Y >> 1;
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int size_Y = w_Y * h_Y;
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int size_UV = size_Y / 4;
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int line = yuv->widthStep;
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uint8_t * addr_Y = capture->xine_frame.data;
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uint8_t * addr_U = addr_Y + size_Y;
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uint8_t * addr_V = addr_U + size_UV;
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// YYYY..UU.VV. -> BGRBGRBGR...
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for ( int y = 0; y < h_Y; y++ )
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{
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int offset = y * line;
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for ( int x = 0; x < w_Y; x++, offset += 3 )
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{
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/*
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if ( x&1 )
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{
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addr_U++; addr_V++;
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}
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*/
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int one_zero = x & 1;
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addr_U += one_zero;
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addr_V += one_zero;
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yuv->imageData[ offset ] = *( addr_Y++ );
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yuv->imageData[ offset + 1 ] = *addr_U;
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yuv->imageData[ offset + 2 ] = *addr_V;
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}
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if ( y & 1 )
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{
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addr_U -= w_UV;
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addr_V -= w_UV;
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}
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}
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/* convert to BGR */
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cvCvtColor( capture->yuv_frame, capture->bgr_frame, CV_YCrCb2BGR );
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}
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static void icvCloseAVI_XINE( CvCaptureAVI_XINE* capture )
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{
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xine_free_video_frame( capture->vo_port, &capture->xine_frame );
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if ( capture->yuv_frame ) cvReleaseImage( &capture->yuv_frame );
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if ( capture->bgr_frame ) cvReleaseImage( &capture->bgr_frame );
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xine_close( capture->stream );
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// xine_dispose( capture->stream );
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if ( capture->vo_port ) xine_close_video_driver( capture->xine, capture->vo_port );
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xine_exit( capture->xine );
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}
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/**
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* CHECKS IF THE STREAM IN * capture IS SEEKABLE.
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**/
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static void icvCheckSeekAVI_XINE( CvCaptureAVI_XINE * capture )
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{
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OPENCV_ASSERT ( capture, "icvCheckSeekAVI_XINE( CvCaptureAVI_XINE* )", "illegal capture");
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OPENCV_ASSERT ( capture->stream,
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"icvCheckSeekAVI_XINE( CvCaptureAVI_XINE* )", "illegal capture->stream");
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OPENCV_ASSERT ( capture->vo_port,
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"icvCheckSeekAVI_XINE( CvCaptureAVI_XINE* )", "illegal capture->vo_port");
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#ifndef NDEBUG
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fprintf( stderr, "(DEBUG) icvCheckSeekAVI_XINE ... start\n" );
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#endif
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// temp. frame for testing.
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xine_video_frame_t tmp;
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// try to seek to a future frame...
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xine_play( capture->stream, 0, 300 ); /* 300msec */
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// try to receive the frame...
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xine_get_next_video_frame( capture->vo_port, &tmp );
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// if the framenumber is still 0, we can't use the xine seek functionality
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capture->seekable = ( tmp.frame_number != 0 );
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// reset stream
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xine_play( capture->stream, 0, 0 );
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// release xine_frame
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xine_free_video_frame( capture->vo_port, &tmp );
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#ifndef NDEBUG
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if ( capture->seekable )
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fprintf( stderr, "(DEBUG) icvCheckSeekAVI_XINE: Input is seekable, using XINE seek implementation.\n" );
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else
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fprintf( stderr, "(DEBUG) icvCheckSeekAVI_XINE: Input is NOT seekable, using fallback function.\n" );
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fprintf( stderr, "(DEBUG) icvCheckSeekAVI_XINE ... end\n" );
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#endif
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}
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static int icvOpenAVI_XINE( CvCaptureAVI_XINE* capture, const char* filename )
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{
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#ifndef NDEBUG
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fprintf( stderr, "(DEBUG) icvOpenAVI_XINE ... start\n" );
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#endif
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char configfile[ 2048 ];
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capture->xine = xine_new();
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sprintf( configfile, "%s%s", xine_get_homedir(), "/.xine/config" );
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xine_config_load( capture->xine, configfile );
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xine_init( capture->xine );
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xine_engine_set_param( capture->xine, 0, 0 );
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capture->vo_port = xine_new_framegrab_video_port( capture->xine );
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if ( capture->vo_port == NULL )
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{
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printf( "(ERROR)icvOpenAVI_XINE(): Unable to initialize video driver.\n" );
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return 0;
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}
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capture->stream = xine_stream_new( capture->xine, NULL, capture->vo_port );
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if ( !xine_open( capture->stream, filename ) )
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{
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printf( "(ERROR)icvOpenAVI_XINE(): Unable to open source '%s'\n", filename );
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return 0;
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}
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// reset stream...
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xine_play( capture->stream, 0, 0 );
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// initialize some internals...
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capture->frame_number = 0;
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if ( !xine_get_next_video_frame( capture->vo_port, &capture->xine_frame ) )
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{
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#ifndef NDEBUG
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fprintf( stderr, "(DEBUG) icvOpenAVI_XINE ... failed!\n" );
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#endif
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return 0;
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}
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capture->size = cvSize( capture->xine_frame.width, capture->xine_frame.height );
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capture->yuv_frame = cvCreateImage( capture->size, IPL_DEPTH_8U, 3 );
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capture->bgr_frame = cvCreateImage( capture->size, IPL_DEPTH_8U, 3 );
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xine_free_video_frame( capture->vo_port, &capture->xine_frame );
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capture->xine_frame.data[ 0 ] = 0;
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icvCheckSeekAVI_XINE( capture );
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capture->frame_duration = xine_get_stream_info( capture->stream, XINE_STREAM_INFO_FRAME_DURATION ) / 90.;
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capture->frame_rate = 1000 / capture->frame_duration;
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#ifndef NDEBUG
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fprintf( stderr, "(DEBUG) frame_duration = %f, framerate = %f\n", capture->frame_duration, capture->frame_rate );
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#endif
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OPENCV_ASSERT ( capture->yuv_frame,
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"icvOpenAVI_XINE( CvCaptureAVI_XINE *, const char *)", "couldn't create yuv frame");
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OPENCV_ASSERT ( capture->bgr_frame,
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"icvOpenAVI_XINE( CvCaptureAVI_XINE *, const char *)", "couldn't create bgr frame");
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#ifndef NDEBUG
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fprintf( stderr, "(DEBUG) icvOpenAVI_XINE ... end\n" );
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#endif
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return 1;
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}
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static int icvGrabFrameAVI_XINE( CvCaptureAVI_XINE* capture )
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{
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#ifndef NDEBUG
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fprintf( stderr, "(DEBUG) icvGrabFrameAVI_XINE ... start\n" );
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#endif
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OPENCV_ASSERT ( capture,
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"icvGrabFrameAVI_XINE( CvCaptureAVI_XINE * )", "illegal capture");
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OPENCV_ASSERT ( capture->vo_port,
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"icvGrabFrameAVI_XINE( CvCaptureAVI_XINE * )", "illegal capture->vo_port");
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int res = xine_get_next_video_frame( capture->vo_port, &capture->xine_frame );
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/* always keep internal framenumber updated !!! */
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if ( res ) capture->frame_number++;
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#ifndef NDEBUG
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fprintf( stderr, "(DEBUG) icvGrabFrameAVI_XINE ... end\n" );
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#endif
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return res;
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}
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static const IplImage* icvRetrieveFrameAVI_XINE( CvCaptureAVI_XINE* capture, int )
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{
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#ifndef NDEBUG
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fprintf( stderr, "(DEBUG) icvRetrieveFrameAVI_XINE ... start\n" );
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#endif
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OPENCV_ASSERT ( capture,
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"icvRetrieveFrameAVI_XINE( CvCaptureAVI_XINE * )", "illegal capture");
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OPENCV_ASSERT ( capture->stream,
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"icvRetrieveFrameAVI_XINE( CvCaptureAVI_XINE * )", "illegal capture->stream");
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OPENCV_ASSERT ( capture->vo_port,
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"icvRetrieveFrameAVI_XINE( CvCaptureAVI_XINE * )", "illegal capture->vo_port");
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/* no frame grabbed yet? so let's do it now! */
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int res = 0;
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if ( capture->xine_frame.data == 0 )
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{
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res = icvGrabFrameAVI_XINE( capture );
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}
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else
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{
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res = 1;
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}
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if ( res )
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{
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switch ( capture->xine_frame.colorspace )
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{
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case XINE_IMGFMT_YV12: icvYV12toBGR( capture );
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#ifndef NDEBUG
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printf( "(DEBUG)icvRetrieveFrameAVI_XINE: converted YV12 to BGR.\n" );
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#endif
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break;
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|
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case XINE_IMGFMT_YUY2: icvYUY2toBGR( capture );
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#ifndef NDEBUG
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printf( "(DEBUG)icvRetrieveFrameAVI_XINE: converted YUY2 to BGR.\n" );
|
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#endif
|
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break;
|
||||
case XINE_IMGFMT_XVMC: printf( "(ERROR)icvRetrieveFrameAVI_XINE: XVMC format not supported!\n" );
|
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break;
|
||||
|
||||
case XINE_IMGFMT_XXMC: printf( "(ERROR)icvRetrieveFrameAVI_XINE: XXMC format not supported!\n" );
|
||||
break;
|
||||
|
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default: printf( "(ERROR)icvRetrieveFrameAVI_XINE: unknown color/pixel format!\n" );
|
||||
}
|
||||
|
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/* always release last xine_frame, not needed anymore, but store its frame_number in *capture ! */
|
||||
xine_free_video_frame( capture->vo_port, &capture->xine_frame );
|
||||
capture->xine_frame.data = 0;
|
||||
|
||||
#ifndef NDEBUG
|
||||
fprintf( stderr, "(DEBUG) icvRetrieveFrameAVI_XINE ... end\n" );
|
||||
#endif
|
||||
return capture->bgr_frame;
|
||||
}
|
||||
|
||||
#ifndef NDEBUG
|
||||
fprintf( stderr, "(DEBUG) icvRetrieveFrameAVI_XINE ... failed!\n" );
|
||||
#endif
|
||||
return 0;
|
||||
}
|
||||
|
||||
|
||||
/**
|
||||
* THIS FUNCTION IS A FALLBACK FUNCTION FOR THE CASE THAT THE XINE SEEK IMPLEMENTATION
|
||||
* DOESN'T WORK WITH THE ACTUAL INPUT. THIS FUNCTION IS ONLY USED IN THE CASE OF AN EMERGENCY,
|
||||
* BECAUSE IT IS VERY SLOW !
|
||||
**/
|
||||
static int icvOldSeekFrameAVI_XINE( CvCaptureAVI_XINE* capture, int f )
|
||||
{
|
||||
#ifndef NDEBUG
|
||||
fprintf( stderr, "(DEBUG) icvOldSeekFrameAVI_XINE ... start\n" );
|
||||
#endif
|
||||
|
||||
OPENCV_ASSERT ( capture,
|
||||
"icvRetricvOldSeekFrameAVI_XINE( CvCaptureAVI_XINE *, int )", "illegal capture");
|
||||
OPENCV_ASSERT ( capture->stream,
|
||||
"icvOldSeekFrameAVI_XINE( CvCaptureAVI_XINE *, int )", "illegal capture->stream");
|
||||
OPENCV_ASSERT ( capture->vo_port,
|
||||
"icvOldSeekFrameAVI_XINE( CvCaptureAVI_XINE *, int )", "illegal capture->vo_port");
|
||||
|
||||
// not needed tnx to asserts...
|
||||
// we need a valid capture context and it's stream to seek through
|
||||
// if ( !capture || !capture->stream ) return 0;
|
||||
|
||||
// no need to seek if we are already there...
|
||||
if ( f == capture->frame_number )
|
||||
{
|
||||
#ifndef NDEBUG
|
||||
fprintf( stderr, "(DEBUG) icvOldSeekFrameAVI_XINE ... end\n" );
|
||||
#endif
|
||||
return 1;
|
||||
}
|
||||
// if the requested position is behind out actual position,
|
||||
// we just need to read the remaining amount of frames until we are there.
|
||||
else if ( f > capture->frame_number )
|
||||
{
|
||||
for ( ;capture->frame_number < f;capture->frame_number++ )
|
||||
/// un-increment framenumber grabbing failed
|
||||
if ( !xine_get_next_video_frame( capture->vo_port, &capture->xine_frame ) )
|
||||
{
|
||||
capture->frame_number--;
|
||||
break;
|
||||
}
|
||||
else
|
||||
{
|
||||
xine_free_video_frame( capture->vo_port, &capture->xine_frame );
|
||||
}
|
||||
}
|
||||
// otherwise we need to reset the stream and
|
||||
// start reading frames from the beginning.
|
||||
else // f < capture->frame_number
|
||||
{
|
||||
/// reset stream, should also work with non-seekable input
|
||||
xine_play( capture->stream, 0, 0 );
|
||||
/// read frames until we are at the requested frame
|
||||
for ( capture->frame_number = 0; capture->frame_number < f; capture->frame_number++ )
|
||||
/// un-increment last framenumber if grabbing failed
|
||||
if ( !xine_get_next_video_frame( capture->vo_port, &capture->xine_frame ) )
|
||||
{
|
||||
capture->frame_number--;
|
||||
break;
|
||||
}
|
||||
else
|
||||
{
|
||||
xine_free_video_frame( capture->vo_port, &capture->xine_frame );
|
||||
}
|
||||
}
|
||||
|
||||
|
||||
#ifndef NDEBUG
|
||||
fprintf( stderr, "(DEBUG) icvOldSeekFrameAVI_XINE ... end\n" );
|
||||
#endif
|
||||
return ( f == capture->frame_number ) ? 1 : 0;
|
||||
}
|
||||
|
||||
|
||||
static int icvSeekFrameAVI_XINE( CvCaptureAVI_XINE* capture, int f )
|
||||
{
|
||||
#ifndef NDEBUG
|
||||
fprintf( stderr, "(DEBUG) icvSeekFrameAVI_XINE ... start\n" );
|
||||
#endif
|
||||
|
||||
OPENCV_ASSERT ( capture,
|
||||
"icvSeekFrameAVI_XINE( CvCaptureAVI_XINE *, int )", "illegal capture");
|
||||
OPENCV_ASSERT ( capture->stream,
|
||||
"icvSeekFrameAVI_XINE( CvCaptureAVI_XINE *, int )", "illegal capture->stream");
|
||||
OPENCV_ASSERT ( capture->vo_port,
|
||||
"icvSeekFrameAVI_XINE( CvCaptureAVI_XINE *, int )", "illegal capture->vo_port");
|
||||
|
||||
// not needed tnx to asserts...
|
||||
// we need a valid capture context and it's stream to seek through
|
||||
// if ( !capture || !capture->stream ) return 0;
|
||||
|
||||
if ( capture->seekable )
|
||||
{
|
||||
|
||||
/// use xinelib's seek functionality
|
||||
int new_time = ( int ) ( ( f + 1 ) * ( float ) capture->frame_duration );
|
||||
|
||||
#ifndef NDEBUG
|
||||
fprintf( stderr, "(DEBUG) calling xine_play()" );
|
||||
#endif
|
||||
if ( xine_play( capture->stream, 0, new_time ) )
|
||||
{
|
||||
#ifndef NDEBUG
|
||||
fprintf( stderr, "ok\n" );
|
||||
fprintf( stderr, "(DEBUG) icvSeekFrameAVI_XINE ... end\n" );
|
||||
#endif
|
||||
capture->frame_number = f;
|
||||
return 1;
|
||||
}
|
||||
else
|
||||
{
|
||||
#ifndef NDEBUG
|
||||
fprintf( stderr, "failed\n" );
|
||||
fprintf( stderr, "(DEBUG) icvSeekFrameAVI_XINE ... failed\n" );
|
||||
#endif
|
||||
return 0;
|
||||
}
|
||||
}
|
||||
else
|
||||
{
|
||||
#ifndef NDEBUG
|
||||
fprintf( stderr, "(DEBUG) icvSeekFrameAVI_XINE ... end\n" );
|
||||
#endif
|
||||
return icvOldSeekFrameAVI_XINE( capture, f );
|
||||
}
|
||||
}
|
||||
|
||||
|
||||
static int icvSeekTimeAVI_XINE( CvCaptureAVI_XINE* capture, int t )
|
||||
{
|
||||
#ifndef NDEBUG
|
||||
fprintf( stderr, "(DEBUG) icvSeekTimeAVI_XINE ... start\n" );
|
||||
#endif
|
||||
|
||||
OPENCV_ASSERT ( capture,
|
||||
"icvSeekTimeAVI_XINE( CvCaptureAVI_XINE *, int )", "illegal capture");
|
||||
OPENCV_ASSERT ( capture->stream,
|
||||
"icvSeekTimeAVI_XINE( CvCaptureAVI_XINE *, int )", "illegal capture->stream");
|
||||
OPENCV_ASSERT ( capture->vo_port,
|
||||
"icvSeekTimeAVI_XINE( CvCaptureAVI_XINE *, int )", "illegal capture->vo_port");
|
||||
|
||||
#ifndef NDEBUG
|
||||
fprintf( stderr, "(DEBUG) icvSeekTimeAVI_XINE ... start\n" );
|
||||
#endif
|
||||
|
||||
// not needed tnx to asserts...
|
||||
// we need a valid capture context and it's stream to seek through
|
||||
// if ( !capture || !capture->stream ) return 0;
|
||||
|
||||
if ( capture->seekable )
|
||||
{
|
||||
/// use xinelib's seek functionality
|
||||
if ( xine_play( capture->stream, 0, t ) )
|
||||
{
|
||||
capture->frame_number = ( int ) ( ( float ) t * capture->frame_rate / 1000 );
|
||||
#ifndef NDEBUG
|
||||
fprintf( stderr, "(DEBUG) icvSeekFrameAVI_XINE ... end\n" );
|
||||
#endif
|
||||
return 1;
|
||||
}
|
||||
else
|
||||
{
|
||||
#ifndef NDEBUG
|
||||
fprintf( stderr, "(DEBUG) icvSeekFrameAVI_XINE ... failed!\n" );
|
||||
#endif
|
||||
return 0;
|
||||
}
|
||||
}
|
||||
else
|
||||
{
|
||||
int new_frame = ( int ) ( ( float ) t * capture->frame_rate / 1000 );
|
||||
#ifndef NDEBUG
|
||||
fprintf( stderr, "(DEBUG) icvSeekFrameAVI_XINE ....end\n" );
|
||||
#endif
|
||||
return icvOldSeekFrameAVI_XINE( capture, new_frame );
|
||||
}
|
||||
}
|
||||
|
||||
|
||||
static int icvSeekRatioAVI_XINE( CvCaptureAVI_XINE* capture, double ratio )
|
||||
{
|
||||
#ifndef NDEBUG
|
||||
fprintf( stderr, "(DEBUG) icvSeekRatioAVI_XINE ... start\n" );
|
||||
#endif
|
||||
|
||||
OPENCV_ASSERT ( capture,
|
||||
"icvSeekRatioAVI_XINE( CvCaptureAVI_XINE *, double )", "illegal capture");
|
||||
OPENCV_ASSERT ( capture->stream,
|
||||
"icvSeekRatioAVI_XINE( CvCaptureAVI_XINE *, double )", "illegal capture->stream");
|
||||
OPENCV_ASSERT ( capture->vo_port,
|
||||
"icvSeekRatioAVI_XINE( CvCaptureAVI_XINE *, double )", "illegal capture->vo_port");
|
||||
|
||||
// not needed tnx to asserts...
|
||||
// we need a valid capture context and it's stream to seek through
|
||||
// if ( !capture || !capture->stream ) return 0;
|
||||
|
||||
/// ratio must be [0..1]
|
||||
if ( ratio > 1 || ratio < 0 ) return 0;
|
||||
|
||||
if ( capture->seekable )
|
||||
{
|
||||
// TODO: FIX IT, DOESN'T WORK PROPERLY, YET...!
|
||||
int pos_t, pos_l, length;
|
||||
xine_get_pos_length( capture->stream, &pos_l, &pos_t, &length );
|
||||
fprintf( stderr, "ratio on GetProperty(): %d\n", pos_l );
|
||||
|
||||
/// use xinelib's seek functionality
|
||||
if ( xine_play( capture->stream, (int)(ratio*(float)length), 0 ) )
|
||||
{
|
||||
capture->frame_number = ( int ) ( ratio*length / capture->frame_duration );
|
||||
}
|
||||
else
|
||||
{
|
||||
#ifndef NDEBUG
|
||||
fprintf( stderr, "(DEBUG) icvSeekRatioAVI_XINE ... failed!\n" );
|
||||
#endif
|
||||
return 0;
|
||||
}
|
||||
}
|
||||
else
|
||||
{
|
||||
/// TODO: fill it !
|
||||
fprintf( stderr, "icvSeekRatioAVI_XINE(): Seek not supported by stream !\n" );
|
||||
fprintf( stderr, "icvSeekRatioAVI_XINE(): (seek in stream with NO seek support NOT implemented...yet!)\n" );
|
||||
#ifndef NDEBUG
|
||||
fprintf( stderr, "(DEBUG) icvSeekRatioAVI_XINE ... failed!\n" );
|
||||
#endif
|
||||
return 0;
|
||||
}
|
||||
|
||||
#ifndef NDEBUG
|
||||
fprintf( stderr, "(DEBUG) icvSeekRatioAVI_XINE ... end!\n" );
|
||||
#endif
|
||||
return 1;
|
||||
}
|
||||
|
||||
|
||||
static double icvGetPropertyAVI_XINE( CvCaptureAVI_XINE* capture, int property_id )
|
||||
{
|
||||
#ifndef NDEBUG
|
||||
fprintf( stderr, "(DEBUG) icvGetPropertyAVI_XINE ... start\n" );
|
||||
#endif
|
||||
|
||||
OPENCV_ASSERT ( capture,
|
||||
"icvGetPropertyAVI_XINE( CvCaptureAVI_XINE *, int )", "illegal capture");
|
||||
OPENCV_ASSERT ( capture->stream,
|
||||
"icvGetPropertyAVI_XINE( CvCaptureAVI_XINE *, int )", "illegal capture->stream");
|
||||
OPENCV_ASSERT ( capture->vo_port,
|
||||
"icvGetPropertyAVI_XINE( CvCaptureAVI_XINE *, int )", "illegal capture->vo_port");
|
||||
OPENCV_ASSERT ( capture->xine,
|
||||
"icvGetPropertyAVI_XINE( CvCaptureAVI_XINE *, int )", "illegal capture->xine");
|
||||
OPENCV_ASSERT ( capture->bgr_frame,
|
||||
"icvGetPropertyAVI_XINE( CvCaptureAVI_XINE *, int )", "illegal capture->bgr_frame");
|
||||
|
||||
// not needed tnx to asserts...
|
||||
// we need a valid capture context and it's stream to seek through
|
||||
// if ( !capture || !capture->stream || !capture->bgr_frame || !capture->xine || !capture->vo_port ) return 0
|
||||
|
||||
int pos_t, pos_l, length;
|
||||
xine_get_pos_length( capture->stream, &pos_l, &pos_t, &length );
|
||||
fprintf( stderr, "ratio on GetProperty(): %i\n", pos_l );
|
||||
|
||||
switch ( property_id )
|
||||
{
|
||||
/// return actual position in msec
|
||||
case CV_CAP_PROP_POS_MSEC:
|
||||
if ( !capture->seekable )
|
||||
{
|
||||
fprintf( stderr, "(ERROR) GetPropertyAVI_XINE(CV_CAP_PROP_POS_MSEC:\n" );
|
||||
fprintf( stderr, " Stream is NOT seekable, so position info may NOT be valid !!\n" );
|
||||
}
|
||||
return pos_t;
|
||||
|
||||
/// return actual frame number
|
||||
case CV_CAP_PROP_POS_FRAMES:
|
||||
/// we insist the capture->frame_number to be remain updated !!!!
|
||||
return capture->frame_number;
|
||||
|
||||
/// return actual position ratio in the range [0..1] depending on
|
||||
/// the total length of the stream and the actual position
|
||||
case CV_CAP_PROP_POS_AVI_RATIO:
|
||||
if ( !capture->seekable )
|
||||
{
|
||||
fprintf( stderr, "(ERROR) GetPropertyAVI_XINE(CV_CAP_PROP_POS_AVI_RATIO:\n" );
|
||||
fprintf( stderr, " Stream is NOT seekable, so ratio info may NOT be valid !!\n" );
|
||||
}
|
||||
if ( length == 0 ) break;
|
||||
else return pos_l / 65535;
|
||||
|
||||
|
||||
/// return width of image source
|
||||
case CV_CAP_PROP_FRAME_WIDTH:
|
||||
return capture->size.width;
|
||||
|
||||
/// return height of image source
|
||||
case CV_CAP_PROP_FRAME_HEIGHT:
|
||||
return capture->size.height;
|
||||
|
||||
/// return framerate of stream
|
||||
case CV_CAP_PROP_FPS:
|
||||
if ( !capture->seekable )
|
||||
{
|
||||
fprintf( stderr, "(ERROR) GetPropertyAVI_XINE(CV_CAP_PROP_FPS:\n" );
|
||||
fprintf( stderr, " Stream is NOT seekable, so FPS info may NOT be valid !!\n" );
|
||||
}
|
||||
return capture->frame_rate;
|
||||
|
||||
/// return four-character-code (FOURCC) of source's codec
|
||||
case CV_CAP_PROP_FOURCC:
|
||||
return ( double ) xine_get_stream_info( capture->stream, XINE_STREAM_INFO_VIDEO_FOURCC );
|
||||
}
|
||||
|
||||
#ifndef NDEBUG
|
||||
fprintf( stderr, "(DEBUG) icvGetPropertyAVI_XINE ... failed!\n" );
|
||||
#endif
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
|
||||
static int icvSetPropertyAVI_XINE( CvCaptureAVI_XINE* capture,
|
||||
int property_id, double value )
|
||||
{
|
||||
#ifndef NDEBUG
|
||||
fprintf( stderr, "(DEBUG) icvSetPropertyAVI_XINE ... start\n" );
|
||||
#endif
|
||||
|
||||
OPENCV_ASSERT ( capture,
|
||||
"icvSetPropertyAVI_XINE( CvCaptureAVI_XINE *, int, double )", "illegal capture");
|
||||
OPENCV_ASSERT ( capture->stream,
|
||||
"icvGetPropericvSetPropertyAVI_XINE( CvCaptureAVI_XINE *, int )", "illegal capture->stream");
|
||||
OPENCV_ASSERT ( capture->vo_port,
|
||||
"icvSetPropertyAVI_XINE( CvCaptureAVI_XINE *, int, double )", "illegal capture->vo_port");
|
||||
|
||||
// not needed tnx to asserts...
|
||||
// we need a valid capture context and it's stream to seek through
|
||||
// if ( !capture || !capture->stream || !capture->bgr_frame || !capture->xine || !capture->vo_port ) return 0
|
||||
|
||||
#ifndef NDEBUG
|
||||
fprintf( stderr, "(DEBUG) icvSetPropertyAVI_XINE: seeking to value %f ... ", value );
|
||||
#endif
|
||||
|
||||
switch ( property_id )
|
||||
{
|
||||
/// set (seek to) position in msec
|
||||
case CV_CAP_PROP_POS_MSEC:
|
||||
return icvSeekTimeAVI_XINE( capture, ( int ) value );
|
||||
|
||||
/// set (seek to) frame number
|
||||
case CV_CAP_PROP_POS_FRAMES:
|
||||
return icvSeekFrameAVI_XINE( capture, ( int ) value );
|
||||
|
||||
/// set (seek to) position ratio in the range [0..1] depending on
|
||||
/// the total length of the stream and the actual position
|
||||
case CV_CAP_PROP_POS_AVI_RATIO:
|
||||
return icvSeekRatioAVI_XINE( capture, value );
|
||||
|
||||
default:
|
||||
#ifndef NDEBUG
|
||||
fprintf( stderr, "(DEBUG) icvSetPropertyAVI_XINE ... failed!\n" );
|
||||
#endif
|
||||
|
||||
return 0;
|
||||
}
|
||||
}
|
||||
|
||||
|
||||
static CvCaptureAVI_XINE* icvCaptureFromFile_XINE( const char* filename )
|
||||
{
|
||||
// construct capture struct
|
||||
CvCaptureAVI_XINE * capture = ( CvCaptureAVI_XINE* ) cvAlloc ( sizeof ( CvCaptureAVI_XINE ) );
|
||||
memset( capture, 0, sizeof ( CvCaptureAVI_XINE ) );
|
||||
|
||||
// initialize XINE
|
||||
if ( !icvOpenAVI_XINE( capture, filename ) )
|
||||
return 0;
|
||||
|
||||
OPENCV_ASSERT ( capture,
|
||||
"cvCaptureFromFile_XINE( const char * )", "couldn't create capture");
|
||||
|
||||
return capture;
|
||||
|
||||
}
|
||||
|
||||
|
||||
|
||||
class CvCaptureAVI_XINE_CPP : public CvCapture
|
||||
{
|
||||
public:
|
||||
CvCaptureAVI_XINE_CPP() { captureXINE = 0; }
|
||||
virtual ~CvCaptureAVI_XINE_CPP() { close(); }
|
||||
|
||||
virtual bool open( const char* filename );
|
||||
virtual void close();
|
||||
|
||||
virtual double getProperty(int);
|
||||
virtual bool setProperty(int, double);
|
||||
virtual bool grabFrame();
|
||||
virtual IplImage* retrieveFrame(int);
|
||||
protected:
|
||||
|
||||
CvCaptureAVI_XINE* captureXINE;
|
||||
};
|
||||
|
||||
bool CvCaptureAVI_XINE_CPP::open( const char* filename )
|
||||
{
|
||||
close();
|
||||
captureXINE = icvCaptureFromFile_XINE(filename);
|
||||
return captureXINE != 0;
|
||||
}
|
||||
|
||||
void CvCaptureAVI_XINE_CPP::close()
|
||||
{
|
||||
if( captureXINE )
|
||||
{
|
||||
icvCloseAVI_XINE( captureXINE );
|
||||
cvFree( &captureXINE );
|
||||
}
|
||||
}
|
||||
|
||||
bool CvCaptureAVI_XINE_CPP::grabFrame()
|
||||
{
|
||||
return captureXINE ? icvGrabFrameAVI_XINE( captureXINE ) != 0 : false;
|
||||
}
|
||||
|
||||
IplImage* CvCaptureAVI_XINE_CPP::retrieveFrame(int)
|
||||
{
|
||||
return captureXINE ? (IplImage*)icvRetrieveFrameAVI_XINE( captureXINE, 0 ) : 0;
|
||||
}
|
||||
|
||||
double CvCaptureAVI_XINE_CPP::getProperty( int propId )
|
||||
{
|
||||
return captureXINE ? icvGetPropertyAVI_XINE( captureXINE, propId ) : 0;
|
||||
}
|
||||
|
||||
bool CvCaptureAVI_XINE_CPP::setProperty( int propId, double value )
|
||||
{
|
||||
return captureXINE ? icvSetPropertyAVI_XINE( captureXINE, propId, value ) != 0 : false;
|
||||
}
|
||||
|
||||
CvCapture* cvCreateFileCapture_XINE(const char* filename)
|
||||
{
|
||||
CvCaptureAVI_XINE_CPP* capture = new CvCaptureAVI_XINE_CPP;
|
||||
|
||||
if( capture->open(filename))
|
||||
return capture;
|
||||
|
||||
delete capture;
|
||||
return 0;
|
||||
}
|
||||
|
||||
|
||||
#undef NDEBUG
|
||||
Reference in New Issue
Block a user