forked from mia/Aegisub
103 lines
3.1 KiB
C++
103 lines
3.1 KiB
C++
// Copyright (c) 2005-2006, Rodrigo Braz Monteiro, Fredrik Mellbin
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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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#ifdef WITH_FFMPEG
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#ifdef WIN32
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#define EMULATE_INTTYPES
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#endif
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#include <wx/wxprec.h>
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/* avcodec.h uses INT64_C in a *single* place. This prolly breaks on Win32,
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* but, well. Let's at least fix it for Linux.
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*
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#define __STDC_CONSTANT_MACROS 1
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#include <stdint.h>
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* - done in posix/defines.h
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*/
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extern "C" {
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#ifdef WITH_ANCIENT_FFMPEG
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#include <ffmpeg/avcodec.h>
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#include <ffmpeg/avformat.h>
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#else
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#include <libavcodec/avcodec.h>
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#include <libavformat/avformat.h>
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#endif /* WITH_ANCIENT_FFMPEG */
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}
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#include "mkv_wrap.h"
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#include "lavc_file.h"
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#include "include/aegisub/audio_provider.h"
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///////////////////////
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// LAVC Audio Provider
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class LAVCAudioProvider : public AudioProvider {
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private:
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LAVCFile *lavcfile;
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AVCodecContext *codecContext;
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ReSampleContext *rsct;
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float resample_ratio;
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AVStream *stream;
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int audStream;
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int16_t *buffer;
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int16_t *overshoot_buffer;
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int64_t last_output_sample;
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int leftover_samples;
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void Destroy();
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public:
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LAVCAudioProvider(Aegisub::String _filename);
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virtual ~LAVCAudioProvider();
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virtual void GetAudio(void *buf, int64_t start, int64_t count);
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};
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///////////
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// Factory
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class LAVCAudioProviderFactory : public AudioProviderFactory {
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public:
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AudioProvider *CreateProvider(Aegisub::String file) { return new LAVCAudioProvider(file); }
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};
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#endif
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