Aegisub/core/audio_provider_lavc.cpp
Rodrigo Braz Monteiro b51bd77d00 very early LAVC Audio provider
Originally committed to SVN as r319.
2006-04-14 06:13:29 +00:00

125 lines
3.1 KiB
C++

// Copyright (c) 2005-2006, Rodrigo Braz Monteiro, Fredrik Mellbin
// 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 <wx/wxprec.h>
#include <wx/filename.h>
#include "audio_provider_lavc.h"
#include "options.h"
//////////////
// Constructor
LAVCAudioProvider::LAVCAudioProvider(wxString _filename) {
// Set filename
filename = _filename;
// Init lavc variables
codecContext = NULL;
formatContext = NULL;
codec = NULL;
stream = NULL;
frame = NULL;
// Register types
static bool avRegistered = false;
if (!avRegistered) {
av_register_all();
avRegistered = true;
}
// Load audio
LoadAudio(filename);
}
//////////////
// Destructor
LAVCAudioProvider::~LAVCAudioProvider() {
Close();
}
////////////////
// Get filename
wxString LAVCAudioProvider::GetFilename() {
return filename;
}
//////////////
// Load audio
void LAVCAudioProvider::LoadAudio(wxString file) {
// Close first
Close();
try {
// TODO
}
// Catch errors
catch (...) {
Close();
throw;
}
}
//////////
// Unload
void LAVCAudioProvider::Close() {
// Clean frame
if (frame) av_free(frame);
frame = NULL;
// Close codec context
if (codec && codecContext) avcodec_close(codecContext);
codecContext = NULL;
codec = NULL;
// Close format context
if (formatContext) av_close_input_file(formatContext);
formatContext = NULL;
}
/////////////
// Get audio
void LAVCAudioProvider::GetAudio(void *buf, __int64 start, __int64 count) {
// TODO
}