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提交 4abf0b31 编写于 作者: I Ilya Lavrenov
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thread-safe VideoWriter and VideoCapture

上级 6cd70c83
隐藏空白更改
内联 并排
Showing with 457 addition and 51 deletion
modules/highgui/src/cap.cpp
浏览文件 @ 4abf0b31
......@@ -424,7 +424,6 @@ CV_IMPL CvVideoWriter* cvCreateVideoWriter( const char* filename, int fourcc,
CV_IMPL int cvWriteFrame( CvVideoWriter* writer, const IplImage* image )
{
return writer ? writer->writeFrame(image) : 0;
}
......
modules/highgui/src/cap_ffmpeg.cpp
浏览文件 @ 4abf0b31
......@@ -57,11 +57,32 @@ static CvCreateVideoWriter_Plugin icvCreateVideoWriter_FFMPEG_p = 0;
static CvReleaseVideoWriter_Plugin icvReleaseVideoWriter_FFMPEG_p = 0;
static CvWriteFrame_Plugin icvWriteFrame_FFMPEG_p = 0;
static void
icvInitFFMPEG(void)
static cv::Mutex _icvInitFFMPEG_mutex;
class icvInitFFMPEG
{
static int ffmpegInitialized = 0;
if( !ffmpegInitialized )
public:
static void Init()
{
cv::AutoLock al(_icvInitFFMPEG_mutex);
static icvInitFFMPEG init;
}
private:
#if defined WIN32 || defined _WIN32
HMODULE icvFFOpenCV;
~icvInitFFMPEG()
{
if (icvFFOpenCV)
{
FreeLibrary(icvFFOpenCV);
icvFFOpenCV = 0;
}
}
#endif
icvInitFFMPEG()
{
#if defined WIN32 || defined _WIN32
const char* module_name = "opencv_ffmpeg"
......@@ -71,7 +92,7 @@ icvInitFFMPEG(void)
#endif
".dll";
static HMODULE icvFFOpenCV = LoadLibrary( module_name );
icvFFOpenCV = LoadLibrary( module_name );
if( icvFFOpenCV )
{
icvCreateFileCapture_FFMPEG_p =
......@@ -123,10 +144,8 @@ icvInitFFMPEG(void)
icvReleaseVideoWriter_FFMPEG_p = (CvReleaseVideoWriter_Plugin)cvReleaseVideoWriter_FFMPEG;
icvWriteFrame_FFMPEG_p = (CvWriteFrame_Plugin)cvWriteFrame_FFMPEG;
#endif
ffmpegInitialized = 1;
}
}
};
class CvCapture_FFMPEG_proxy : public CvCapture
......@@ -161,9 +180,9 @@ public:
}
virtual bool open( const char* filename )
{
icvInitFFMPEG::Init();
close();
icvInitFFMPEG();
if( !icvCreateFileCapture_FFMPEG_p )
return false;
ffmpegCapture = icvCreateFileCapture_FFMPEG_p( filename );
......@@ -196,7 +215,6 @@ CvCapture* cvCreateFileCapture_FFMPEG_proxy(const char * filename)
#endif
}
class CvVideoWriter_FFMPEG_proxy : public CvVideoWriter
{
public:
......@@ -214,8 +232,8 @@ public:
}
virtual bool open( const char* filename, int fourcc, double fps, CvSize frameSize, bool isColor )
{
icvInitFFMPEG::Init();
close();
icvInitFFMPEG();
if( !icvCreateVideoWriter_FFMPEG_p )
return false;
ffmpegWriter = icvCreateVideoWriter_FFMPEG_p( filename, fourcc, fps, frameSize.width, frameSize.height, isColor );
......
modules/highgui/src/cap_ffmpeg_impl.hpp
浏览文件 @ 4abf0b31
......@@ -328,28 +328,179 @@ void CvCapture_FFMPEG::close()
#define AVSEEK_FLAG_ANY 1
#endif
static void icvInitFFMPEG_internal()
class ImplMutex
{
static volatile bool initialized = false;
if( !initialized )
public:
ImplMutex();
~ImplMutex();
void lock();
bool trylock();
void unlock();
struct Impl;
protected:
Impl* impl;
private:
ImplMutex(const ImplMutex&);
ImplMutex& operator = (const ImplMutex& m);
};
#if defined WIN32 || defined _WIN32 || defined WINCE
struct ImplMutex::Impl
{
Impl() { InitializeCriticalSection(&cs); refcount = 1; }
~Impl() { DeleteCriticalSection(&cs); }
void lock() { EnterCriticalSection(&cs); }
bool trylock() { return TryEnterCriticalSection(&cs) != 0; }
void unlock() { LeaveCriticalSection(&cs); }
CRITICAL_SECTION cs;
int refcount;
};
#ifndef __GNUC__
static int _interlockedExchangeAdd(int* addr, int delta)
{
#if defined _MSC_VER && _MSC_VER >= 1500
return (int)_InterlockedExchangeAdd((long volatile*)addr, delta);
#else
return (int)InterlockedExchangeAdd((long volatile*)addr, delta);
#endif
}
#endif // __GNUC__
#elif defined __APPLE__
#include <libkern/OSAtomic.h>
struct ImplMutex::Impl
{
Impl() { sl = OS_SPINLOCK_INIT; refcount = 1; }
~Impl() {}
void lock() { OSSpinLockLock(&sl); }
bool trylock() { return OSSpinLockTry(&sl); }
void unlock() { OSSpinLockUnlock(&sl); }
OSSpinLock sl;
int refcount;
};
#elif defined __linux__ && !defined ANDROID
struct ImplMutex::Impl
{
Impl() { pthread_spin_init(&sl, 0); refcount = 1; }
~Impl() { pthread_spin_destroy(&sl); }
void lock() { pthread_spin_lock(&sl); }
bool trylock() { return pthread_spin_trylock(&sl) == 0; }
void unlock() { pthread_spin_unlock(&sl); }
pthread_spinlock_t sl;
int refcount;
};
#else
struct ImplMutex::Impl
{
Impl() { pthread_mutex_init(&sl, 0); refcount = 1; }
~Impl() { pthread_mutex_destroy(&sl); }
void lock() { pthread_mutex_lock(&sl); }
bool trylock() { return pthread_mutex_trylock(&sl) == 0; }
void unlock() { pthread_mutex_unlock(&sl); }
pthread_mutex_t sl;
int refcount;
};
#endif
ImplMutex::ImplMutex()
{
impl = new ImplMutex::Impl;
}
ImplMutex::~ImplMutex()
{
delete impl;
impl = 0;
}
void ImplMutex::lock() { impl->lock(); }
void ImplMutex::unlock() { impl->unlock(); }
bool ImplMutex::trylock() { return impl->trylock(); }
static int LockCallBack(void **mutex, AVLockOp op)
{
switch (op)
{
#if LIBAVFORMAT_BUILD >= CALC_FFMPEG_VERSION(53, 13, 0)
case AV_LOCK_CREATE:
*mutex = reinterpret_cast<void*>(new ImplMutex());
if (!*mutex)
return 1;
break;
case AV_LOCK_OBTAIN:
reinterpret_cast<ImplMutex*>(*mutex)->lock();
break;
case AV_LOCK_RELEASE:
reinterpret_cast<ImplMutex*>(*mutex)->unlock();
break;
case AV_LOCK_DESTROY:
ImplMutex* cv_mutex = reinterpret_cast<ImplMutex*>(*mutex);
delete cv_mutex;
cv_mutex = NULL;
break;
}
return 0;
}
static ImplMutex _InternalFFMpegRegister_mutex;
class InternalFFMpegRegister
{
public:
static void Register()
{
_InternalFFMpegRegister_mutex.lock();
static InternalFFMpegRegister init;
_InternalFFMpegRegister_mutex.unlock();
}
~InternalFFMpegRegister()
{
av_lockmgr_register(NULL);
}
private:
InternalFFMpegRegister()
{
#if LIBAVFORMAT_BUILD >= CALC_FFMPEG_VERSION(53, 13, 0)
avformat_network_init();
#endif
#endif
/* register all codecs, demux and protocols */
av_register_all();
av_log_set_level(AV_LOG_ERROR);
/* register a callback function for synchronization */
av_lockmgr_register(&LockCallBack);
initialized = true;
av_log_set_level(AV_LOG_ERROR);
}
}
};
bool CvCapture_FFMPEG::open( const char* _filename )
{
icvInitFFMPEG_internal();
InternalFFMpegRegister::Register();
unsigned i;
bool valid = false;
......@@ -361,7 +512,8 @@ bool CvCapture_FFMPEG::open( const char* _filename )
int err = av_open_input_file(&ic, _filename, NULL, 0, NULL);
#endif
if (err < 0) {
if (err < 0)
{
CV_WARN("Error opening file");
goto exit_func;
}
......@@ -371,7 +523,8 @@ bool CvCapture_FFMPEG::open( const char* _filename )
#else
av_find_stream_info(ic);
#endif
if (err < 0) {
if (err < 0)
{
CV_WARN("Could not find codec parameters");
goto exit_func;
}
......@@ -393,7 +546,8 @@ bool CvCapture_FFMPEG::open( const char* _filename )
#define AVMEDIA_TYPE_VIDEO CODEC_TYPE_VIDEO
#endif
if( AVMEDIA_TYPE_VIDEO == enc->codec_type && video_stream < 0) {
if( AVMEDIA_TYPE_VIDEO == enc->codec_type && video_stream < 0)
{
AVCodec *codec = avcodec_find_decoder(enc->codec_id);
if (!codec ||
#if LIBAVCODEC_VERSION_INT >= ((53<<16)+(8<<8)+0)
......@@ -401,7 +555,8 @@ bool CvCapture_FFMPEG::open( const char* _filename )
#else
avcodec_open(enc, codec)
#endif
< 0) goto exit_func;
< 0)
goto exit_func;
video_stream = i;
video_st = ic->streams[i];
......@@ -1275,7 +1430,7 @@ void CvVideoWriter_FFMPEG::close()
bool CvVideoWriter_FFMPEG::open( const char * filename, int fourcc,
double fps, int width, int height, bool is_color )
{
icvInitFFMPEG_internal();
InternalFFMpegRegister::Register();
CodecID codec_id = CODEC_ID_NONE;
int err, codec_pix_fmt;
......@@ -1495,6 +1650,7 @@ bool CvVideoWriter_FFMPEG::open( const char * filename, int fourcc,
frame_width = width;
frame_height = height;
ok = true;
return true;
}
......@@ -1506,6 +1662,7 @@ CvCapture_FFMPEG* cvCreateFileCapture_FFMPEG( const char* filename )
capture->init();
if( capture->open( filename ))
return capture;
capture->close();
free(capture);
return 0;
......@@ -1554,7 +1711,6 @@ CvVideoWriter_FFMPEG* cvCreateVideoWriter_FFMPEG( const char* filename, int four
return 0;
}
void cvReleaseVideoWriter_FFMPEG( CvVideoWriter_FFMPEG** writer )
{
if( writer && *writer )
......@@ -1741,15 +1897,12 @@ AVStream* OutputMediaStream_FFMPEG::addVideoStream(AVFormatContext *oc, CodecID
bool OutputMediaStream_FFMPEG::open(const char* fileName, int width, int height, double fps)
{
InternalFFMpegRegister::Register();
fmt_ = 0;
oc_ = 0;
video_st_ = 0;
// tell FFMPEG to register codecs
av_register_all();
av_log_set_level(AV_LOG_ERROR);
// auto detect the output format from the name and fourcc code
#if LIBAVFORMAT_BUILD >= CALC_FFMPEG_VERSION(53, 2, 0)
fmt_ = av_guess_format(NULL, fileName, NULL);
......@@ -1920,6 +2073,8 @@ private:
bool InputMediaStream_FFMPEG::open(const char* fileName, int* codec, int* chroma_format, int* width, int* height)
{
InternalFFMpegRegister::Register();
int err;
ctx_ = 0;
......@@ -1930,11 +2085,6 @@ bool InputMediaStream_FFMPEG::open(const char* fileName, int* codec, int* chroma
avformat_network_init();
#endif
// register all codecs, demux and protocols
av_register_all();
av_log_set_level(AV_LOG_ERROR);
#if LIBAVFORMAT_BUILD >= CALC_FFMPEG_VERSION(53, 6, 0)
err = avformat_open_input(&ctx_, fileName, 0, 0);
#else
......@@ -2054,7 +2204,7 @@ bool InputMediaStream_FFMPEG::read(unsigned char** data, int* size, int* endOfFi
if (ret < 0)
{
if (ret == AVERROR_EOF)
if (ret == (int)AVERROR_EOF)
*endOfFile = true;
return false;
}
......
modules/highgui/src/cap_gstreamer.cpp
浏览文件 @ 4abf0b31
......@@ -65,7 +65,24 @@
#define CV_WARN(message) fprintf(stderr, "warning: %s (%s:%d)\n", message, __FILE__, __LINE__)
#endif
static bool isInited = false;
static cv::Mutex gst_initializer_mutex;
class gst_initializer
{
public:
static void init()
{
gst_initializer_mutex.lock();
static gst_initializer init;
gst_initializer_mutex.unlock();
}
private:
gst_initializer()
{
gst_init(NULL, NULL);
}
};
class CvCapture_GStreamer : public CvCapture
{
public:
......@@ -298,16 +315,18 @@ bool CvCapture_GStreamer::open( int type, const char* filename )
__BEGIN__;
if(!isInited) {
gst_initializer::init();
// if(!isInited) {
// printf("gst_init\n");
gst_init (NULL, NULL);
// gst_init (NULL, NULL);
// gst_debug_set_active(TRUE);
// gst_debug_set_colored(TRUE);
// gst_debug_set_default_threshold(GST_LEVEL_WARNING);
isInited = true;
}
// isInited = true;
// }
bool stream = false;
bool manualpipeline = false;
char *uri = NULL;
......@@ -477,10 +496,11 @@ bool CvVideoWriter_GStreamer::open( const char * filename, int fourcc,
encit=encs.find(fourcc);
if (encit==encs.end())
CV_ERROR( CV_StsUnsupportedFormat,"Gstreamer Opencv backend doesn't support this codec acutally.");
if(!isInited) {
gst_init (NULL, NULL);
isInited = true;
}
// if(!isInited) {
// gst_init (NULL, NULL);
// isInited = true;
// }
gst_initializer::init();
close();
source=gst_element_factory_make("appsrc",NULL);
file=gst_element_factory_make("filesink", NULL);
......
modules/highgui/test/test_ffmpeg.cpp
浏览文件 @ 4abf0b31
......@@ -43,11 +43,12 @@
#include "test_precomp.hpp"
#include "opencv2/highgui/highgui.hpp"
using namespace cv;
#ifdef HAVE_FFMPEG
#include "ffmpeg_codecs.hpp"
using namespace cv;
using namespace std;
class CV_FFmpegWriteBigVideoTest : public cvtest::BaseTest
......@@ -118,11 +119,11 @@ public:
else
{
Mat img(frame_s, CV_8UC3, Scalar::all(0));
const int coeff = cvRound(cv::min(frame_s.width, frame_s.height)/(fps0 * time_sec));
const int coeff = cvRound(min(frame_s.width, frame_s.height)/(fps0 * time_sec));
for (int i = 0 ; i < static_cast<int>(fps * time_sec); i++ )
{
//circle(img, Point2i(img_c / 2, img_r / 2), cv::min(img_r, img_c) / 2 * (i + 1), Scalar(255, 0, 0, 0), 2);
//circle(img, Point2i(img_c / 2, img_r / 2), min(img_r, img_c) / 2 * (i + 1), Scalar(255, 0, 0, 0), 2);
rectangle(img, Point2i(coeff * i, coeff * i), Point2i(coeff * (i + 1), coeff * (i + 1)),
Scalar::all(255 * (1.0 - static_cast<double>(i) / (fps * time_sec * 2) )), -1);
writer << img;
......@@ -174,3 +175,221 @@ public:
TEST(Highgui_Video, ffmpeg_image) { CV_FFmpegReadImageTest test; test.safe_run(); }
#endif
#if defined(HAVE_FFMPEG) || defined(WIN32) || defined(_WIN32)
//////////////////////////////// Parallel VideoWriters and VideoCaptures ////////////////////////////////////
class CreateVideoWriterInvoker :
public ParallelLoopBody
{
public:
const static Size FrameSize;
static std::string TmpDirectory;
CreateVideoWriterInvoker(std::vector<VideoWriter*>& _writers, std::vector<std::string>& _files) :
ParallelLoopBody(), writers(&_writers), files(&_files)
{
}
virtual void operator() (const Range& range) const
{
for (int i = range.start; i != range.end; ++i)
{
std::ostringstream stream;
stream << i << ".avi";
std::string fileName = tempfile(stream.str().c_str());
files->operator[](i) = fileName;
writers->operator[](i) = new VideoWriter(fileName, CV_FOURCC('X','V','I','D'), 25.0f, FrameSize);
CV_Assert(writers->operator[](i)->isOpened());
}
}
private:
std::vector<VideoWriter*>* writers;
std::vector<std::string>* files;
};
std::string CreateVideoWriterInvoker::TmpDirectory;
const Size CreateVideoWriterInvoker::FrameSize(1020, 900);
class WriteVideo_Invoker :
public ParallelLoopBody
{
public:
enum { FrameCount = 300 };
static const Scalar ObjectColor;
static const Point Center;
WriteVideo_Invoker(const std::vector<VideoWriter*>& _writers) :
ParallelLoopBody(), writers(&_writers)
{
}
static void GenerateFrame(Mat& frame, unsigned int i)
{
frame = Scalar::all(i % 255);
std::string text = to_string(i);
putText(frame, text, Point(50, Center.y), FONT_HERSHEY_SIMPLEX, 5.0, ObjectColor, 5, CV_AA);
circle(frame, Center, i + 2, ObjectColor, 2, CV_AA);
}
virtual void operator() (const Range& range) const
{
CV_Assert((range.start + 1) == range.end);
VideoWriter* writer = writers->operator[](range.start);
CV_Assert(writer != NULL);
CV_Assert(writer->isOpened());
Mat frame(CreateVideoWriterInvoker::FrameSize, CV_8UC3);
for (unsigned int i = 0; i < FrameCount; ++i)
{
GenerateFrame(frame, i);
writer->operator<< (frame);
}
}
protected:
static std::string to_string(unsigned int i)
{
std::stringstream stream(std::ios::out);
stream << "frame #" << i;
return stream.str();
}
private:
const std::vector<VideoWriter*>* writers;
};
const Scalar WriteVideo_Invoker::ObjectColor(Scalar::all(0));
const Point WriteVideo_Invoker::Center(CreateVideoWriterInvoker::FrameSize.height / 2,
CreateVideoWriterInvoker::FrameSize.width / 2);
class CreateVideoCaptureInvoker :
public ParallelLoopBody
{
public:
CreateVideoCaptureInvoker(std::vector<VideoCapture*>& _readers, const std::vector<std::string>& _files) :
ParallelLoopBody(), readers(&_readers), files(&_files)
{
}
virtual void operator() (const Range& range) const
{
for (int i = range.start; i != range.end; ++i)
{
readers->operator[](i) = new VideoCapture(files->operator[](i));
CV_Assert(readers->operator[](i)->isOpened());
}
}
private:
std::vector<VideoCapture*>* readers;
const std::vector<std::string>* files;
};
class ReadImageAndTest :
public ParallelLoopBody
{
public:
ReadImageAndTest(const std::vector<VideoCapture*>& _readers, cvtest::TS* _ts) :
ParallelLoopBody(), readers(&_readers), ts(_ts)
{
}
virtual void operator() (const Range& range) const
{
CV_Assert(range.start + 1 == range.end);
VideoCapture* capture = readers->operator[](range.start);
CV_Assert(capture != NULL);
CV_Assert(capture->isOpened());
const static double eps = 23.0;
unsigned int frameCount = static_cast<unsigned int>(capture->get(CV_CAP_PROP_FRAME_COUNT));
CV_Assert(frameCount == WriteVideo_Invoker::FrameCount);
Mat reference(CreateVideoWriterInvoker::FrameSize, CV_8UC3);
for (unsigned int i = 0; i < frameCount && next; ++i)
{
Mat actual;
(*capture) >> actual;
WriteVideo_Invoker::GenerateFrame(reference, i);
EXPECT_EQ(reference.cols, actual.cols);
EXPECT_EQ(reference.rows, actual.rows);
EXPECT_EQ(reference.depth(), actual.depth());
EXPECT_EQ(reference.channels(), actual.channels());
double psnr = PSNR(actual, reference);
if (psnr < eps)
{
#define SUM cvtest::TS::SUMMARY
ts->printf(SUM, "\nPSNR: %lf\n", psnr);
ts->printf(SUM, "Video #: %d\n", range.start);
ts->printf(SUM, "Frame #: %d\n", i);
#undef SUM
ts->set_failed_test_info(cvtest::TS::FAIL_BAD_ACCURACY);
ts->set_gtest_status();
Mat diff;
absdiff(actual, reference, diff);
EXPECT_EQ(countNonZero(diff.reshape(1) > 1), 0);
next = false;
}
}
}
static bool next;
private:
const std::vector<VideoCapture*>* readers;
cvtest::TS* ts;
};
bool ReadImageAndTest::next;
TEST(Highgui_Video_parallel_writers_and_readers, accuracy)
{
const unsigned int threadsCount = 4;
cvtest::TS* ts = cvtest::TS::ptr();
// creating VideoWriters
std::vector<VideoWriter*> writers(threadsCount);
Range range(0, threadsCount);
std::vector<std::string> files(threadsCount);
CreateVideoWriterInvoker invoker1(writers, files);
parallel_for_(range, invoker1);
// write a video
parallel_for_(range, WriteVideo_Invoker(writers));
// deleting the writers
for (std::vector<VideoWriter*>::iterator i = writers.begin(), end = writers.end(); i != end; ++i)
delete *i;
writers.clear();
std::vector<VideoCapture*> readers(threadsCount);
CreateVideoCaptureInvoker invoker2(readers, files);
parallel_for_(range, invoker2);
ReadImageAndTest::next = true;
parallel_for_(range, ReadImageAndTest(readers, ts));
// deleting tmp video files
for (std::vector<std::string>::const_iterator i = files.begin(), end = files.end(); i != end; ++i)
{
int code = remove(i->c_str());
if (code == 1)
std::cerr << "Couldn't delete " << *i << std::endl;
}
}
#endif
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