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Commit a9bdf75c authored by Maksim Shabunin's avatar Maksim Shabunin
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videoio: refactored XINE backend

parent 0477284b
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Showing with 214 additions and 693 deletions
modules/videoio/include/opencv2/videoio.hpp
View file @ a9bdf75c
......@@ -116,7 +116,8 @@ enum VideoCaptureAPIs {
CAP_IMAGES = 2000, //!< OpenCV Image Sequence (e.g. img_%02d.jpg)
CAP_ARAVIS = 2100, //!< Aravis SDK
CAP_OPENCV_MJPEG = 2200, //!< Built-in OpenCV MotionJPEG codec
CAP_INTEL_MFX = 2300 //!< Intel MediaSDK
CAP_INTEL_MFX = 2300, //!< Intel MediaSDK
CAP_XINE = 2400, //!< XINE engine (Linux)
};
/** @brief %VideoCapture generic properties identifier.
......
modules/videoio/src/cap.cpp
View file @ a9bdf75c
......@@ -311,15 +311,11 @@ CV_IMPL CvCapture * cvCreateFileCaptureWithPreference (const char * filename, in
if (apiPreference) break;
#endif
case CAP_MSMF:
#ifdef HAVE_MSMF
case CAP_MSMF:
TRY_OPEN(result, cvCreateFileCapture_MSMF (filename))
#endif
#ifdef HAVE_XINE
TRY_OPEN(result, cvCreateFileCapture_XINE (filename))
#endif
if (apiPreference) break;
#endif
#ifdef HAVE_VFW
case CAP_VFW:
......@@ -533,6 +529,14 @@ static Ptr<IVideoCapture> IVideoCapture_create(const String& filename, int apiPr
{
bool useAny = (apiPreference == CAP_ANY);
Ptr<IVideoCapture> capture;
#ifdef HAVE_XINE
if (useAny || apiPreference == CAP_XINE)
{
capture = createXINECapture(filename.c_str());
if (capture && capture->isOpened())
return capture;
}
#endif
#ifdef HAVE_GPHOTO2
if (useAny || apiPreference == CAP_GPHOTO2)
{
......
modules/videoio/src/cap_xine.cpp
View file @ a9bdf75c
/*M///////////////////////////////////////////////////////////////////////////////////////
/*M//////////////////////////////////////////////////////////
//
// IMPORTANT: READ BEFORE DOWNLOADING, COPYING, INSTALLING OR USING.
//
......@@ -45,802 +45,311 @@
// Institute of Communications Engineering
// RWTH Aachen University
#include "precomp.hpp"
// required to enable some functions used here...
#define XINE_ENABLE_EXPERIMENTAL_FEATURES
#include <cassert>
extern "C"
{
#include <xine.h>
//#include <xine/xineutils.h>
#include <xine/xineutils.h>
// forward declaration from <xine/xineutils.h>
const char *xine_get_homedir( void );
}
using namespace cv;
typedef struct CvCaptureAVI_XINE
class XINECapture : public IVideoCapture
{
/// method call table
xine_t * xine;
xine_stream_t * stream;
xine_video_port_t * vo_port;
/// frame returned by xine_get_next_video_frame()
// method call table
xine_t *xine;
xine_stream_t *stream;
xine_video_port_t *vo_port;
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 !!!!
Size size;
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
double frame_rate; // fps
double frame_duration; // ms
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 )
public:
XINECapture()
: xine(0), stream(0), vo_port(0), frame_number(-1), frame_rate(0.), frame_duration(0.),
seekable(false)
{
capture->yuv_frame->imageData[ offset ] = v[ 2 ];
v += 4;
}
else
{
capture->yuv_frame->imageData[ offset ] = v[ 0 ];
}
xine_video_frame_t z = {};
xine_frame = z;
}
}
// 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;
~XINECapture() { close(); }
int line = yuv->widthStep;
bool isOpened() const CV_OVERRIDE { return xine && stream; }
uint8_t * addr_Y = capture->xine_frame.data;
uint8_t * addr_U = addr_Y + size_Y;
uint8_t * addr_V = addr_U + size_UV;
int getCaptureDomain() CV_OVERRIDE { return CAP_XINE; }
// YYYY..UU.VV. -> BGRBGRBGR...
for ( int y = 0; y < h_Y; y++ )
void close()
{
int offset = y * line;
for ( int x = 0; x < w_Y; x++, offset += 3 )
if (vo_port && xine_frame.data)
{
/*
if ( x&1 )
xine_free_video_frame(vo_port, &xine_frame);
}
if (stream)
{
addr_U++; addr_V++;
xine_close(stream);
stream = 0;
}
*/
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 (vo_port)
{
xine_close_video_driver(xine, vo_port);
vo_port = 0;
}
if ( y & 1 )
if (xine)
{
addr_U -= w_UV;
addr_V -= w_UV;
xine_exit(xine);
xine = 0;
}
}
/* 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 );
}
bool open(const char *filename)
{
CV_Assert(!xine, !stream, !vo_port);
char configfile[2048] = {0};
/**
* 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");
xine = xine_new();
sprintf(configfile, "%s%s", xine_get_homedir(), "/.xine/config");
xine_config_load(xine, configfile);
xine_init(xine);
xine_engine_set_param(xine, 0, 0);
#ifndef NDEBUG
fprintf( stderr, "(DEBUG) icvCheckSeekAVI_XINE ... start\n" );
#endif
vo_port = xine_new_framegrab_video_port(xine);
if (!vo_port)
return false;
// 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" );
stream = xine_stream_new(xine, NULL, vo_port);
if (!xine_open(stream, filename))
return false;
fprintf( stderr, "(DEBUG) icvCheckSeekAVI_XINE ... end\n" );
#endif
}
// reset stream...
if (!xine_play(stream, 0, 0))
return false;
// initialize some internals...
frame_number = 0;
static int icvOpenAVI_XINE( CvCaptureAVI_XINE* capture, const char* filename )
{
#ifndef NDEBUG
fprintf( stderr, "(DEBUG) icvOpenAVI_XINE ... start\n" );
#endif
char configfile[ 2048 ];
if ( !xine_get_next_video_frame( vo_port, &xine_frame ) )
return false;
capture->xine = xine_new();
sprintf( configfile, "%s%s", xine_get_homedir(), "/.xine/config" );
size = Size( xine_frame.width, xine_frame.height );
xine_config_load( capture->xine, configfile );
xine_init( capture->xine );
xine_free_video_frame( vo_port, &xine_frame );
xine_frame.data = 0;
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;
xine_video_frame_t tmp;
if (!xine_play( stream, 0, 300 )) /* 300msec */
return false;
if (!xine_get_next_video_frame( vo_port, &tmp ))
return false;
seekable = ( tmp.frame_number != 0 );
xine_free_video_frame( vo_port, &tmp );
if (!xine_play( stream, 0, 0 ))
return false;
}
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;
frame_duration = xine_get_stream_info( stream, XINE_STREAM_INFO_FRAME_DURATION ) / 90.;
frame_rate = frame_duration > 0 ? 1000 / frame_duration : 0.;
return true;
}
// 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 ) )
bool grabFrame() CV_OVERRIDE
{
#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
CV_Assert(vo_port);
bool res = xine_get_next_video_frame(vo_port, &xine_frame);
if (res)
frame_number++;
return res;
}
}
bool retrieveFrame(int, OutputArray out) CV_OVERRIDE
{
CV_Assert(stream);
CV_Assert(vo_port);
static const IplImage* icvRetrieveFrameAVI_XINE( CvCaptureAVI_XINE* capture, int )
{
#ifndef NDEBUG
fprintf( stderr, "(DEBUG) icvRetrieveFrameAVI_XINE ... start\n" );
#endif
if (xine_frame.data == 0)
return false;
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");
bool res = false;
Mat frame_bgr;
/* no frame grabbed yet? so let's do it now! */
int res = 0;
if ( capture->xine_frame.data == 0 )
switch (xine_frame.colorspace)
{
res = icvGrabFrameAVI_XINE( capture );
}
else
case XINE_IMGFMT_YV12: // actual format seems to be I420 (or IYUV)
{
res = 1;
Mat frame(Size(xine_frame.width, xine_frame.height * 3 / 2), CV_8UC1, xine_frame.data);
cv::cvtColor(frame, out, cv::COLOR_YUV2BGR_I420);
res = true;
}
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" );
case XINE_IMGFMT_YUY2:
{
Mat frame(Size(xine_frame.width, xine_frame.height), CV_8UC2, xine_frame.data);
cv::cvtColor(frame, out, cv::COLOR_YUV2BGR_YUY2);
res = true;
}
break;
case XINE_IMGFMT_XXMC: printf( "(ERROR)icvRetrieveFrameAVI_XINE: XXMC format not supported!\n" );
default:
break;
}
default: printf( "(ERROR)icvRetrieveFrameAVI_XINE: unknown color/pixel format!\n" );
// always release last xine_frame, not needed anymore
xine_free_video_frame(vo_port, &xine_frame);
xine_frame.data = 0;
return res;
}
/* 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;
double getProperty(int property_id) const CV_OVERRIDE
{
CV_Assert(xine, vo_port, stream);
int pos_t, pos_l, length;
bool res = (bool)xine_get_pos_length(stream, &pos_l, &pos_t, &length);
#ifndef NDEBUG
fprintf( stderr, "(DEBUG) icvRetrieveFrameAVI_XINE ... end\n" );
#endif
return capture->bgr_frame;
switch (property_id)
{
case CV_CAP_PROP_POS_MSEC: return res ? pos_t : 0;
case CV_CAP_PROP_POS_FRAMES: return frame_number;
case CV_CAP_PROP_POS_AVI_RATIO: return length && res ? pos_l / 65535.0 : 0.0;
case CV_CAP_PROP_FRAME_WIDTH: return size.width;
case CV_CAP_PROP_FRAME_HEIGHT: return size.height;
case CV_CAP_PROP_FPS: return frame_rate;
case CV_CAP_PROP_FOURCC: return (double)xine_get_stream_info(stream, XINE_STREAM_INFO_VIDEO_FOURCC);
}
#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;
bool setProperty(int property_id, double value) CV_OVERRIDE
{
CV_Assert(stream);
CV_Assert(vo_port);
switch (property_id)
{
case CV_CAP_PROP_POS_MSEC: return seekTime((int)value);
case CV_CAP_PROP_POS_FRAMES: return seekFrame((int)value);
case CV_CAP_PROP_POS_AVI_RATIO: return seekRatio(value);
default: return false;
}
}
protected:
bool oldSeekFrame(int f)
{
CV_Assert(xine, vo_port, stream);
// no need to seek if we are already there...
if ( f == capture->frame_number )
if (f == frame_number)
{
#ifndef NDEBUG
fprintf( stderr, "(DEBUG) icvOldSeekFrameAVI_XINE ... end\n" );
#endif
return 1;
return true;
}
else if (f > frame_number)
{
// 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 (; frame_number < f; 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 ) )
// un-increment framenumber grabbing failed
if (!xine_get_next_video_frame(vo_port, &xine_frame))
{
capture->frame_number--;
frame_number--;
break;
}
else
{
xine_free_video_frame( capture->vo_port, &capture->xine_frame );
xine_free_video_frame(vo_port, &xine_frame);
}
}
}
else // f < frame_number
{
// 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(stream, 0, 0);
// read frames until we are at the requested frame
for (frame_number = 0; frame_number < f; 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 ) )
// un-increment last framenumber if grabbing failed
if (!xine_get_next_video_frame(vo_port, &xine_frame))
{
capture->frame_number--;
frame_number--;
break;
}
else
{
xine_free_video_frame( capture->vo_port, &capture->xine_frame );
xine_free_video_frame(vo_port, &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;
return f == frame_number;
}
}
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 )
bool seekFrame(int f)
{
/// use xinelib's seek functionality
if ( xine_play( capture->stream, 0, t ) )
CV_Assert(xine, vo_port, stream);
if (seekable)
{
capture->frame_number = ( int ) ( ( float ) t * capture->frame_rate / 1000 );
#ifndef NDEBUG
fprintf( stderr, "(DEBUG) icvSeekFrameAVI_XINE ... end\n" );
#endif
return 1;
}
else
int new_time = (int)((f + 1) * (float)frame_duration);
if (xine_play(stream, 0, new_time))
{
#ifndef NDEBUG
fprintf( stderr, "(DEBUG) icvSeekFrameAVI_XINE ... failed!\n" );
#endif
return 0;
frame_number = f;
return true;
}
}
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 );
return oldSeekFrame(f);
}
return false;
}
}
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 )
bool seekTime(int t)
{
// 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 ) )
CV_Assert(xine, vo_port, stream);
if (seekable)
{
capture->frame_number = ( int ) ( ratio*length / capture->frame_duration );
}
else
if (xine_play(stream, 0, t))
{
#ifndef NDEBUG
fprintf( stderr, "(DEBUG) icvSeekRatioAVI_XINE ... failed!\n" );
#endif
return 0;
frame_number = (int)((double)t * frame_rate / 1000);
return true;
}
}
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;
int new_frame = (int)((double)t * frame_rate / 1000);
return oldSeekFrame(new_frame);
}
return false;
}
#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 )
bool seekRatio(double ratio)
{
/// return actual position in msec
case CV_CAP_PROP_POS_MSEC:
if ( !capture->seekable )
CV_Assert(xine, vo_port, stream);
if (ratio > 1 || ratio < 0)
return false;
if (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 )
// TODO: FIX IT, DOESN'T WORK PROPERLY, YET...!
int pos_t, pos_l, length;
bool res = (bool)xine_get_pos_length(stream, &pos_l, &pos_t, &length);
if (res && xine_play(stream, (int)(ratio * (double)length), 0))
{
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" );
frame_number = (int)(ratio * length / frame_duration);
return true;
}
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 );
return false;
}
#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) const CV_OVERRIDE;
virtual bool setProperty(int, double) CV_OVERRIDE;
virtual bool grabFrame() CV_OVERRIDE;
virtual IplImage* retrieveFrame(int) CV_OVERRIDE;
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()
Ptr<IVideoCapture> cv::createXINECapture(const char *filename)
{
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 ) const
{
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;
Ptr<XINECapture> res = makePtr<XINECapture>();
if (res && res->open(filename))
return res;
return Ptr<IVideoCapture>();
}
#undef NDEBUG
modules/videoio/src/precomp.hpp
View file @ a9bdf75c
......@@ -133,8 +133,6 @@ CvCapture* cvCreateCameraCapture_Aravis( int index );
CvCapture* cvCreateFileCapture_Images(const char* filename);
CvVideoWriter* cvCreateVideoWriter_Images(const char* filename);
CvCapture* cvCreateFileCapture_XINE (const char* filename);
#define CV_CAP_GSTREAMER_1394 0
#define CV_CAP_GSTREAMER_V4L 1
......@@ -195,6 +193,8 @@ namespace cv
Ptr<IVideoCapture> createGPhoto2Capture(int index);
Ptr<IVideoCapture> createGPhoto2Capture(const String& deviceName);
Ptr<IVideoCapture> createXINECapture(const char* filename);
}
#endif /* __VIDEOIO_H_ */
modules/videoio/test/test_video_io.cpp
View file @ a9bdf75c
......@@ -131,7 +131,7 @@ public:
return;
}
if (ext != "wmv")
if (ext != "wmv" && ext != "h264" && ext != "h265")
{
SCOPED_TRACE("progressive seek");
ASSERT_TRUE(cap.set(CAP_PROP_POS_FRAMES, 0));
......@@ -141,7 +141,7 @@ public:
}
}
if (ext != "mpg" && ext != "wmv")
if (ext != "mpg" && ext != "wmv" && ext != "h264" && ext != "h265")
{
SCOPED_TRACE("random seek");
ASSERT_TRUE(cap.set(CAP_PROP_POS_FRAMES, 0));
......@@ -334,6 +334,11 @@ int backend_params[] = {
#ifdef HAVE_FFMPEG
CAP_FFMPEG,
#endif
#ifdef HAVE_XINE
CAP_XINE,
#endif
CAP_OPENCV_MJPEG
// CAP_INTEL_MFX
};
......@@ -345,6 +350,8 @@ string bunny_params[] = {
string("mp4"),
string("mpg"),
string("avi"),
string("h264"),
string("h265"),
#endif
string("mjpg.avi")
};
......
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