Aegisub/aegisub/src/video_provider_manager.cpp
Karl Blomster 2b2a7f4212 Implement a YUV4MPEG video provider. (YUV4MPEG is an uncompressed video format originally created for use by mjpegtools but is also commonly used by a lot of Unix video software; see http://wiki.multimedia.cx/index.php?title=YUV4MPEG2 or http://manpages.ubuntu.com/manpages/karmic/en/man5/yuv4mpeg.5.html (man 5 yuv4mpeg, if you have mjpegtools installed) for a description of the format.)
Currently lacks a few features (no RFF flag parsing is done, interlacing is not supported and the colorspace conversion to RGB32 could stand considerable improvement) but at least now Aegisub is capable of reading video without FFMS2 or Avisynth. Updates #920.

Originally committed to SVN as r3168.
2009-07-19 04:13:46 +00:00

143 lines
4.6 KiB
C++

// Copyright (c) 2006, Rodrigo Braz Monteiro
// All rights reserved.
//
// Redistribution and use in source and binary forms, with or without
// modification, are permitted provided that the following conditions are met:
//
// * Redistributions of source code must retain the above copyright notice,
// this list of conditions and the following disclaimer.
// * Redistributions 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.
// * Neither the name of the Aegisub Group nor the names of its contributors
// may 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 COPYRIGHT OWNER 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.
//
// -----------------------------------------------------------------------------
//
// AEGISUB
//
// Website: http://aegisub.cellosoft.com
// Contact: mailto:zeratul@cellosoft.com
//
///////////
// Headers
#include "config.h"
#include "video_provider_manager.h"
#include "video_provider_dummy.h"
#include "options.h"
#include "vfr.h"
#ifdef WITH_AVISYNTH
#include "video_provider_avs.h"
#endif
#ifdef WITH_DIRECTSHOW
#include "video_provider_dshow.h"
#endif
#ifdef WITH_FFMPEGSOURCE
#include "video_provider_ffmpegsource.h"
#endif
#include "video_provider_dummy.h"
#include "video_provider_cache.h"
#include "video_provider_yuv4mpeg.h"
////////////////
// Get provider
VideoProvider *VideoProviderFactoryManager::GetProvider(wxString video,double fps) {
// First check special case of dummy video
if (video.StartsWith(_T("?dummy:"))) {
#if wxCHECK_VERSION(2,9,0)
return new DummyVideoProvider(video.wc_str(), fps);
#else
return new DummyVideoProvider(video.c_str(), fps);
#endif
}
try {
VideoProvider *y4m_provider = new YUV4MPEGVideoProvider(video.c_str(), fps);
if (y4m_provider)
y4m_provider = new VideoProviderCache(y4m_provider);
return y4m_provider;
}
catch (wxString temp) {
wxLogDebug(_T("YUV4MPEG provider creation failed with reason: %s; trying other providers"), temp.c_str());
}
catch (...) {
wxLogDebug(_T("YUV4MPEG provider creation failed for unknown reasons, trying other providers"));
}
// List of providers
wxArrayString list = GetFactoryList(Options.AsText(_T("Video provider")));
// None available
if (list.Count() == 0) throw _T("No video providers are available.");
// Get provider
wxString error;
for (unsigned int i=0;i<list.Count();i++) {
try {
// Create provider
#if wxCHECK_VERSION(2,9,0)
VideoProvider *provider = GetFactory(list[i])->CreateProvider(video.wc_str(),fps);
#else
VideoProvider *provider = GetFactory(list[i])->CreateProvider(video.c_str(),fps);
#endif
if (provider) {
// Cache if necessary
if (provider->GetDesiredCacheSize()) {
provider = new VideoProviderCache(provider);
}
return provider;
}
}
catch (wxString err) { error += list[i] + _T(" factory: ") + err + _T("\n"); }
catch (const wxChar *err) { error += list[i] + _T(" factory: ") + wxString(err) + _T("\n"); }
catch (...) { error += list[i] + _T(" factory: Unknown error\n"); }
}
// Failed
throw error;
}
//////////////////////////
// Register all providers
void VideoProviderFactoryManager::RegisterProviders() {
#ifdef WITH_AVISYNTH
RegisterFactory(new AvisynthVideoProviderFactory(),_T("Avisynth"));
#endif
#ifdef WITH_DIRECTSHOW
RegisterFactory(new DirectShowVideoProviderFactory(),_T("DirectShow"));
#endif
#ifdef WITH_FFMPEGSOURCE
RegisterFactory(new FFmpegSourceVideoProviderFactory(),_T("FFmpegSource"));
#endif
}
///////////////////////
// Clear all providers
void VideoProviderFactoryManager::ClearProviders() {
ClearFactories();
}
//////////
// Static
template <class VideoProviderFactory> std::map<wxString,VideoProviderFactory*>* FactoryManager<VideoProviderFactory>::factories=NULL;