134 lines
3.8 KiB
C++
134 lines
3.8 KiB
C++
// Copyright (c) 2006, Rodrigo Braz Monteiro
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// All rights reserved.
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//
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// Redistribution and use in source and binary forms, with or without
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// modification, are permitted provided that the following conditions are met:
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//
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// * Redistributions of source code must retain the above copyright notice,
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// this list of conditions and the following disclaimer.
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// * Redistributions in binary form must reproduce the above copyright notice,
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// this list of conditions and the following disclaimer in the documentation
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// and/or other materials provided with the distribution.
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// * Neither the name of the Aegisub Group nor the names of its contributors
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// may be used to endorse or promote products derived from this software
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// without specific prior written permission.
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//
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// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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// AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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// IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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// ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
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// LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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// CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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// SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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// INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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// CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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// ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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// POSSIBILITY OF SUCH DAMAGE.
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//
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// -----------------------------------------------------------------------------
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//
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// AEGISUB
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//
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// Website: http://aegisub.cellosoft.com
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// Contact: mailto:zeratul@cellosoft.com
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//
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///////////
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// Headers
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#include "video_provider_avs.h"
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#include "video_provider_lavc.h"
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#include "video_provider_dshow.h"
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#include "options.h"
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#include "setup.h"
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////////////////
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// Get provider
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VideoProvider *VideoProvider::GetProvider(wxString video,wxString subtitles) {
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// Check if avisynth is available
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bool avisynthAvailable = false;
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bool dshowAvailable = false;
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#ifdef __WINDOWS__
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dshowAvailable = true;
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try {
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// If avisynth.dll cannot be loaded, an exception will be thrown and avisynthAvailable will never be set to true
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AviSynthWrapper avs;
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avisynthAvailable = true;
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}
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catch (...) {}
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#endif
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// Initialize to null
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VideoProvider *provider = NULL;
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// Preffered provider
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wxString preffered = Options.AsText(_T("Video provider")).Lower();
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// See if it's OK to use LAVC
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#if USE_LAVC == 1
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if (preffered == _T("ffmpeg") || (!avisynthAvailable && !dshowAvailable)) {
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// Load
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bool success = false;
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wxString error;
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try {
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provider = new LAVCVideoProvider(video,subtitles);
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success = true;
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}
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// Catch error
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catch (const wchar_t *err) {
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error = err;
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}
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catch (...) {
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error = _T("Unhandled exception.");
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}
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if (!success) {
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// Delete old provider
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delete provider;
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provider = NULL;
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// Try to fallback to avisynth
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if (avisynthAvailable) {
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wxMessageBox(_T("Failed loading FFmpeg decoder for video, falling back to Avisynth.\nError message: ") + error,_T("FFmpeg error."));
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provider = NULL;
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}
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// Out of options, rethrow
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else throw error.c_str();
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}
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}
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#endif
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#ifdef __WINDOWS__
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#if USE_DIRECTSHOW == 1
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// Use DirectShow provider
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if (!provider && (preffered == _T("dshow") || !avisynthAvailable)) {
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try {
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provider = new DirectShowVideoProvider(video,subtitles);
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}
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catch (...) {
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delete provider;
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provider = NULL;
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throw;
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}
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}
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#endif
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// Use Avisynth provider
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if (!provider) {
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try {
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provider = new AvisynthVideoProvider(video,subtitles);
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}
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catch (...) {
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delete provider;
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provider = NULL;
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throw;
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}
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}
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#endif
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// Return provider
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return provider;
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}
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