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unplug AMZ's lavc audio 

Originally committed to SVN as r324.
This commit is contained in:
David Lamparter 2006-04-14 22:33:20 +00:00
parent 18b92130b8
commit 33ff5515e5
2 changed files with 0 additions and 247 deletions
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162
core/audio_provider_lavc.cpp
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@ -1,162 +0,0 @@
// 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 {
// Open file
int result = 0;
result = av_open_input_file(&formatContext,filename.mb_str(wxConvLocal),NULL,0,NULL);
if (result != 0) throw _T("Failed opening file.");
// Get stream info
result = av_find_stream_info(formatContext);
if (result < 0) throw _T("Unable to read stream info");
// Find audio stream
audStream = -1;
codecContext = NULL;
for (int i=0;i<formatContext->nb_streams;i++) {
codecContext = formatContext->streams[i]->codec;
if (codecContext->codec_type == CODEC_TYPE_AUDIO) {
stream = formatContext->streams[i];
audStream = i;
break;
}
}
if (audStream == -1) throw _T("Could not find an audio stream");
// Find codec
codec = avcodec_find_decoder(codecContext->codec_id);
if (!codec) throw _T("Could not find suitable audio decoder");
// Enable truncation
//if (codec->capabilities & CODEC_CAP_TRUNCATED) codecContext->flags |= CODEC_FLAG_TRUNCATED;
// Open codec
result = avcodec_open(codecContext,codec);
if (result < 0) throw _T("Failed to open audio decoder");
// Set variables
sample_rate = codecContext->sample_rate;
channels = codecContext->channels;
bytes_per_sample = 2; //codecContext->sample_fmt;
num_samples = stream->duration / bytes_per_sample;
}
// 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
for (__int64 i=0;i<count;i++) ((short*)buf)[i] = 0;
}

85
core/audio_provider_lavc.h
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@ -1,85 +0,0 @@
// 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
//
#pragma once
///////////////////////////////////
// Auto-enable LAVC on non-windows
#ifndef __WINDOWS__
#ifndef USE_LAVC
#define USE_LAVC
#endif
#endif
///////////
// Headers
#ifdef USE_LAVC
#define EMULATE_INTTYPES
#include <ffmpeg/avcodec.h>
#include <ffmpeg/avformat.h>
#include <wx/wxprec.h>
#include "audio_provider.h"
////////////////////////
// Audio provider class
class LAVCAudioProvider : public AudioProvider {
private:
wxString filename;
AVFormatContext *formatContext;
AVCodecContext *codecContext;
AVStream *stream;
AVCodec *codec;
AVFrame *frame;
int audStream;
void LoadAudio(wxString file);
void Close();
public:
LAVCAudioProvider(wxString _filename);
~LAVCAudioProvider();
wxString GetFilename();
void GetAudio(void *buf, __int64 start, __int64 count);
void GetWaveForm(int *min,int *peak,__int64 start,int w,int h,int samples,float scale);
};
#endif