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/*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.
//
//
// License Agreement
// For Open Source Computer Vision Library
//
// Copyright (C) 2000-2008, Intel Corporation, all rights reserved.
// Copyright (C) 2009, Willow Garage Inc., 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 the copyright holders 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*/
#include "ffmpeg_video_source.h"
#if defined(HAVE_CUDA) && defined(HAVE_NVCUVID)
#if defined(HAVE_FFMPEG) && defined(BUILD_SHARED_LIBS) && !defined(WIN32)
#include "../src/cap_ffmpeg_impl.hpp"
#else
#include "../src/cap_ffmpeg_api.hpp"
#endif
namespace
{
Create_InputMediaStream_FFMPEG_Plugin create_InputMediaStream_FFMPEG_p = 0;
Release_InputMediaStream_FFMPEG_Plugin release_InputMediaStream_FFMPEG_p = 0;
Read_InputMediaStream_FFMPEG_Plugin read_InputMediaStream_FFMPEG_p = 0;
bool init_MediaStream_FFMPEG()
{
static bool initialized = 0;
if (!initialized)
{
#if defined WIN32 || defined _WIN32
const char* module_name = "opencv_ffmpeg"
CVAUX_STR(CV_VERSION_EPOCH) CVAUX_STR(CV_VERSION_MAJOR) CVAUX_STR(CV_VERSION_MINOR)
#if (defined _MSC_VER && defined _M_X64) || (defined __GNUC__ && defined __x86_64__)
"_64"
#endif
".dll";
static HMODULE cvFFOpenCV = LoadLibrary(module_name);
if (cvFFOpenCV)
{
create_InputMediaStream_FFMPEG_p =
(Create_InputMediaStream_FFMPEG_Plugin)GetProcAddress(cvFFOpenCV, "create_InputMediaStream_FFMPEG");
release_InputMediaStream_FFMPEG_p =
(Release_InputMediaStream_FFMPEG_Plugin)GetProcAddress(cvFFOpenCV, "release_InputMediaStream_FFMPEG");
read_InputMediaStream_FFMPEG_p =
(Read_InputMediaStream_FFMPEG_Plugin)GetProcAddress(cvFFOpenCV, "read_InputMediaStream_FFMPEG");
initialized = create_InputMediaStream_FFMPEG_p != 0 && release_InputMediaStream_FFMPEG_p != 0 && read_InputMediaStream_FFMPEG_p != 0;
}
#elif defined HAVE_FFMPEG
create_InputMediaStream_FFMPEG_p = create_InputMediaStream_FFMPEG;
release_InputMediaStream_FFMPEG_p = release_InputMediaStream_FFMPEG;
read_InputMediaStream_FFMPEG_p = read_InputMediaStream_FFMPEG;
initialized = true;
#endif
}
return initialized;
}
}
cv::gpu::detail::FFmpegVideoSource::FFmpegVideoSource(const std::string& fname) :
stream_(0)
{
CV_Assert( init_MediaStream_FFMPEG() );
int codec;
int chroma_format;
int width;
int height;
stream_ = create_InputMediaStream_FFMPEG_p(fname.c_str(), &codec, &chroma_format, &width, &height);
if (!stream_)
CV_Error(CV_StsUnsupportedFormat, "Unsupported video source");
format_.codec = static_cast<VideoReader_GPU::Codec>(codec);
format_.chromaFormat = static_cast<VideoReader_GPU::ChromaFormat>(chroma_format);
format_.width = width;
format_.height = height;
}
cv::gpu::detail::FFmpegVideoSource::~FFmpegVideoSource()
{
release_InputMediaStream_FFMPEG_p(stream_);
}
cv::gpu::VideoReader_GPU::FormatInfo cv::gpu::detail::FFmpegVideoSource::format() const
{
return format_;
}
void cv::gpu::detail::FFmpegVideoSource::start()
{
stop_ = false;
hasError_ = false;
thread_.reset(new Thread(readLoop, this));
}
void cv::gpu::detail::FFmpegVideoSource::stop()
{
stop_ = true;
thread_->wait();
thread_.reset();
}
bool cv::gpu::detail::FFmpegVideoSource::isStarted() const
{
return !stop_;
}
bool cv::gpu::detail::FFmpegVideoSource::hasError() const
{
return hasError_;
}
void cv::gpu::detail::FFmpegVideoSource::readLoop(void* userData)
{
FFmpegVideoSource* thiz = static_cast<FFmpegVideoSource*>(userData);
for (;;)
{
unsigned char* data;
int size;
int endOfFile;
if (!read_InputMediaStream_FFMPEG_p(thiz->stream_, &data, &size, &endOfFile))
{
thiz->hasError_ = !endOfFile;
break;
}
if (!thiz->parseVideoData(data, size))
{
thiz->hasError_ = true;
break;
}
if (thiz->stop_)
break;
}
thiz->parseVideoData(0, 0, true);
}
#endif // HAVE_CUDA