+++ /dev/null
-/*M///////////////////////////////////////////////////////////////////////////////////////
-//
-// IMPORTANT: READ BEFORE DOWNLOADING, COPYING, INSTALLING OR USING.
-//
-// By downloading, copying, installing or using the software you agree to this license.
-// If you do not agree to this license, do not download, install,
-// copy or use the software.
-//
-//
-// Intel License Agreement
-// For Open Source Computer Vision Library
-//
-// Copyright (C) 2000, Intel Corporation, all rights reserved.
-// Third party copyrights are property of their respective owners.
-//
-// Redistribution and use in source and binary forms, with or without modification,
-// are permitted provided that the following conditions are met:
-//
-// * Redistribution's of source code must retain the above copyright notice,
-// this list of conditions and the following disclaimer.
-//
-// * Redistribution's in binary form must reproduce the above copyright notice,
-// this list of conditions and the following disclaimer in the documentation
-// and/or other materials provided with the distribution.
-//
-// * The name of Intel Corporation may not be used to endorse or promote products
-// derived from this software without specific prior written permission.
-//
-// This software is provided by the copyright holders and contributors "as is" and
-// any express or implied warranties, including, but not limited to, the implied
-// warranties of merchantability and fitness for a particular purpose are disclaimed.
-// In no event shall the Intel Corporation or contributors be liable for any direct,
-// indirect, incidental, special, exemplary, or consequential damages
-// (including, but not limited to, procurement of substitute goods or services;
-// loss of use, data, or profits; or business interruption) however caused
-// and on any theory of liability, whether in contract, strict liability,
-// or tort (including negligence or otherwise) arising in any way out of
-// the use of this software, even if advised of the possibility of such damage.
-//
-//M*/
-
-// Authors: Konstantin Dols <dols@ient.rwth-aachen.de>
-// Mark Asbach <asbach@ient.rwth-aachen.de>
-//
-// Institute of Communications Engineering
-// RWTH Aachen University
-
-
-#include "_highgui.h"
-
-// required to enable some functions used here...
-#define XINE_ENABLE_EXPERIMENTAL_FEATURES
-
-#include <cv.h>
-#include <cassert>
-
-extern "C"
-{
-#include <xine.h>
- //#include <xine/xineutils.h>
-
- // forward declaration from <xine/xineutils.h>
- const char *xine_get_homedir( void );
-}
-
-typedef struct CvCaptureAVI_XINE
-{
- /// method call table
- xine_t * xine;
- xine_stream_t * stream;
- xine_video_port_t * vo_port;
-
- /// frame returned by xine_get_next_video_frame()
- xine_video_frame_t xine_frame;
-
- IplImage * yuv_frame;
- IplImage * bgr_frame;
-
- /// image dimansions of the input stream.
- CvSize size;
-
- /// framenumber of the last frame received from xine_get_next_video_frame().
- /// note: always keep this value updated !!!!
- int frame_number;
-
- /// framerate of the opened stream
- double frame_rate;
-
- /// duration of a frame in stream
- double frame_duration;
-
- /// indicated if input is seekable
- bool seekable;
-
-}
-CvCaptureAVI_XINE;
-
-
-// 4:2:2 interleaved -> BGR
-static void icvYUY2toBGR( CvCaptureAVI_XINE * capture )
-{
- uint8_t * v = capture->xine_frame.data;
- int offset;
- for ( int y = 0; y < capture->yuv_frame->height; y++ )
- {
- offset = y * capture->yuv_frame->widthStep;
-
- for ( int x = 0; x < capture->yuv_frame->width; x++, offset += 3 )
- {
- capture->yuv_frame->imageData[ offset + 1 ] = v[ 3 ];
- capture->yuv_frame->imageData[ offset + 2 ] = v[ 1 ];
- if ( x & 1 )
- {
- capture->yuv_frame->imageData[ offset ] = v[ 2 ];
- v += 4;
- }
- else
- {
- capture->yuv_frame->imageData[ offset ] = v[ 0 ];
- }
- }
- }
-
- // convert to BGR
- cvCvtColor( capture->yuv_frame, capture->bgr_frame, CV_YCrCb2BGR );
-}
-
-
-// 4:2:0 planary -> BGR
-static void icvYV12toBGR( CvCaptureAVI_XINE * capture )
-{
- IplImage * yuv = capture->yuv_frame;
- int w_Y = capture->size.width;
- int h_Y = capture->size.height;
-
- int w_UV = w_Y >> 1;
-
- int size_Y = w_Y * h_Y;
- int size_UV = size_Y / 4;
-
- int line = yuv->widthStep;
-
- uint8_t * addr_Y = capture->xine_frame.data;
- uint8_t * addr_U = addr_Y + size_Y;
- uint8_t * addr_V = addr_U + size_UV;
-
- // YYYY..UU.VV. -> BGRBGRBGR...
- for ( int y = 0; y < h_Y; y++ )
- {
- int offset = y * line;
- for ( int x = 0; x < w_Y; x++, offset += 3 )
- {
- /*
- if ( x&1 )
- {
- addr_U++; addr_V++;
- }
- */
- int one_zero = x & 1;
- addr_U += one_zero;
- addr_V += one_zero;
-
- yuv->imageData[ offset ] = *( addr_Y++ );
- yuv->imageData[ offset + 1 ] = *addr_U;
- yuv->imageData[ offset + 2 ] = *addr_V;
- }
-
- if ( y & 1 )
- {
- addr_U -= w_UV;
- addr_V -= w_UV;
- }
- }
-
- /* convert to BGR */
- cvCvtColor( capture->yuv_frame, capture->bgr_frame, CV_YCrCb2BGR );
-}
-
-static void icvCloseAVI_XINE( CvCaptureAVI_XINE* capture )
-{
- xine_free_video_frame( capture->vo_port, &capture->xine_frame );
-
- if ( capture->yuv_frame ) cvReleaseImage( &capture->yuv_frame );
- if ( capture->bgr_frame ) cvReleaseImage( &capture->bgr_frame );
-
- xine_close( capture->stream );
- // xine_dispose( capture->stream );
-
- if ( capture->vo_port ) xine_close_video_driver( capture->xine, capture->vo_port );
-
- xine_exit( capture->xine );
-}
-
-
-/**
- * CHECKS IF THE STREAM IN * capture IS SEEKABLE.
-**/
-static void icvCheckSeekAVI_XINE( CvCaptureAVI_XINE * capture )
-{
- OPENCV_ASSERT ( capture, "icvCheckSeekAVI_XINE( CvCaptureAVI_XINE* )", "illegal capture");
- OPENCV_ASSERT ( capture->stream,
- "icvCheckSeekAVI_XINE( CvCaptureAVI_XINE* )", "illegal capture->stream");
- OPENCV_ASSERT ( capture->vo_port,
- "icvCheckSeekAVI_XINE( CvCaptureAVI_XINE* )", "illegal capture->vo_port");
-
-#ifndef NDEBUG
- fprintf( stderr, "(DEBUG) icvCheckSeekAVI_XINE ... start\n" );
-#endif
-
- // temp. frame for testing.
- xine_video_frame_t tmp;
- // try to seek to a future frame...
- xine_play( capture->stream, 0, 300 ); /* 300msec */
- // try to receive the frame...
- xine_get_next_video_frame( capture->vo_port, &tmp );
- // if the framenumber is still 0, we can't use the xine seek functionality
- capture->seekable = ( tmp.frame_number != 0 );
- // reset stream
- xine_play( capture->stream, 0, 0 );
- // release xine_frame
- xine_free_video_frame( capture->vo_port, &tmp );
-
-#ifndef NDEBUG
- if ( capture->seekable )
- fprintf( stderr, "(DEBUG) icvCheckSeekAVI_XINE: Input is seekable, using XINE seek implementation.\n" );
- else
- fprintf( stderr, "(DEBUG) icvCheckSeekAVI_XINE: Input is NOT seekable, using fallback function.\n" );
-
- fprintf( stderr, "(DEBUG) icvCheckSeekAVI_XINE ... end\n" );
-#endif
-}
-
-
-static int icvOpenAVI_XINE( CvCaptureAVI_XINE* capture, const char* filename )
-{
-#ifndef NDEBUG
- fprintf( stderr, "(DEBUG) icvOpenAVI_XINE ... start\n" );
-#endif
-
- char configfile[ 2048 ];
-
- capture->xine = xine_new();
- sprintf( configfile, "%s%s", xine_get_homedir(), "/.xine/config" );
-
- xine_config_load( capture->xine, configfile );
- xine_init( capture->xine );
-
- xine_engine_set_param( capture->xine, 0, 0 );
- capture->vo_port = xine_new_framegrab_video_port( capture->xine );
- if ( capture->vo_port == NULL )
- {
- printf( "(ERROR)icvOpenAVI_XINE(): Unable to initialize video driver.\n" );
- return 0;
- }
-
- capture->stream = xine_stream_new( capture->xine, NULL, capture->vo_port );
-
- if ( !xine_open( capture->stream, filename ) )
- {
- printf( "(ERROR)icvOpenAVI_XINE(): Unable to open source '%s'\n", filename );
- return 0;
- }
- // reset stream...
- xine_play( capture->stream, 0, 0 );
-
-
- // initialize some internals...
- capture->frame_number = 0;
-
- if ( !xine_get_next_video_frame( capture->vo_port, &capture->xine_frame ) )
- {
-#ifndef NDEBUG
- fprintf( stderr, "(DEBUG) icvOpenAVI_XINE ... failed!\n" );
-#endif
- return 0;
- }
-
- capture->size = cvSize( capture->xine_frame.width, capture->xine_frame.height );
- capture->yuv_frame = cvCreateImage( capture->size, IPL_DEPTH_8U, 3 );
- capture->bgr_frame = cvCreateImage( capture->size, IPL_DEPTH_8U, 3 );
-
- xine_free_video_frame( capture->vo_port, &capture->xine_frame );
- capture->xine_frame.data[ 0 ] = 0;
-
- icvCheckSeekAVI_XINE( capture );
-
- capture->frame_duration = xine_get_stream_info( capture->stream, XINE_STREAM_INFO_FRAME_DURATION ) / 90.;
- capture->frame_rate = 1000 / capture->frame_duration;
-
-#ifndef NDEBUG
- fprintf( stderr, "(DEBUG) frame_duration = %f, framerate = %f\n", capture->frame_duration, capture->frame_rate );
-#endif
-
- OPENCV_ASSERT ( capture->yuv_frame,
- "icvOpenAVI_XINE( CvCaptureAVI_XINE *, const char *)", "couldn't create yuv frame");
-
- OPENCV_ASSERT ( capture->bgr_frame,
- "icvOpenAVI_XINE( CvCaptureAVI_XINE *, const char *)", "couldn't create bgr frame");
-
-#ifndef NDEBUG
- fprintf( stderr, "(DEBUG) icvOpenAVI_XINE ... end\n" );
-#endif
- return 1;
-}
-
-
-static int icvGrabFrameAVI_XINE( CvCaptureAVI_XINE* capture )
-{
-#ifndef NDEBUG
- fprintf( stderr, "(DEBUG) icvGrabFrameAVI_XINE ... start\n" );
-#endif
-
- OPENCV_ASSERT ( capture,
- "icvGrabFrameAVI_XINE( CvCaptureAVI_XINE * )", "illegal capture");
- OPENCV_ASSERT ( capture->vo_port,
- "icvGrabFrameAVI_XINE( CvCaptureAVI_XINE * )", "illegal capture->vo_port");
-
- int res = xine_get_next_video_frame( capture->vo_port, &capture->xine_frame );
-
- /* always keep internal framenumber updated !!! */
- if ( res ) capture->frame_number++;
-
-#ifndef NDEBUG
- fprintf( stderr, "(DEBUG) icvGrabFrameAVI_XINE ... end\n" );
-#endif
- return res;
-}
-
-
-static const IplImage* icvRetrieveFrameAVI_XINE( CvCaptureAVI_XINE* capture )
-{
-#ifndef NDEBUG
- fprintf( stderr, "(DEBUG) icvRetrieveFrameAVI_XINE ... start\n" );
-#endif
-
- OPENCV_ASSERT ( capture,
- "icvRetrieveFrameAVI_XINE( CvCaptureAVI_XINE * )", "illegal capture");
- OPENCV_ASSERT ( capture->stream,
- "icvRetrieveFrameAVI_XINE( CvCaptureAVI_XINE * )", "illegal capture->stream");
- OPENCV_ASSERT ( capture->vo_port,
- "icvRetrieveFrameAVI_XINE( CvCaptureAVI_XINE * )", "illegal capture->vo_port");
-
- /* no frame grabbed yet? so let's do it now! */
- int res = 0;
- if ( capture->xine_frame.data == 0 )
- {
- res = icvGrabFrameAVI_XINE( capture );
- }
- else
- {
- res = 1;
- }
-
- if ( res )
- {
- switch ( capture->xine_frame.colorspace )
- {
- case XINE_IMGFMT_YV12: icvYV12toBGR( capture );
-#ifndef NDEBUG
- printf( "(DEBUG)icvRetrieveFrameAVI_XINE: converted YV12 to BGR.\n" );
-#endif
- break;
-
- case XINE_IMGFMT_YUY2: icvYUY2toBGR( capture );
-#ifndef NDEBUG
- printf( "(DEBUG)icvRetrieveFrameAVI_XINE: converted YUY2 to BGR.\n" );
-#endif
- break;
- case XINE_IMGFMT_XVMC: printf( "(ERROR)icvRetrieveFrameAVI_XINE: XVMC format not supported!\n" );
- break;
-
- case XINE_IMGFMT_XXMC: printf( "(ERROR)icvRetrieveFrameAVI_XINE: XXMC format not supported!\n" );
- break;
-
- default: printf( "(ERROR)icvRetrieveFrameAVI_XINE: unknown color/pixel format!\n" );
- }
-
- /* 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(): %n\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( int index );
- virtual void close();
-
- virtual double getProperty(int);
- virtual bool setProperty(int, double);
- virtual bool grabFrame();
- virtual IplImage* retrieveFrame();
-protected:
-
- CvCaptureAVI_XINE* captureXINE;
-};
-
-bool CvCaptureAVI_XINE_CPP::open( int index )
-{
- close();
- captureXINE = icvCaptureFromFile_XINE(index);
- 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()
-{
- return captureXINE ? (IplImage*)icvRetrieveFrameAVI_XINE( captureXINE ) : 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* cvCreateCameraCapture_XINE( int index )
-{
- CvCaptureAVI_XINE_CPP* capture = new CvCaptureAVI_XINE_CPP;
-
- if( capture->open( index ))
- return capture;
-
- delete capture;
- return 0;
-}
-
-
-#undef NDEBUG