95 lines
2.1 KiB
C
95 lines
2.1 KiB
C
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/**
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* PANDA 3D SOFTWARE
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* Copyright (c) Carnegie Mellon University. All rights reserved.
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*
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* All use of this software is subject to the terms of the revised BSD
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* license. You should have received a copy of this license along
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* with this source code in a file named "LICENSE."
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*
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* @file ffmpegAudioCursor.h
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* @author jyelon
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* @date 2007-08-01
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*/
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#ifndef FFMPEGAUDIOCURSOR_H
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#define FFMPEGAUDIOCURSOR_H
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#include "pandabase.h"
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#include "movieAudioCursor.h"
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#include "namable.h"
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#include "texture.h"
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#include "pointerTo.h"
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#include "ffmpegVirtualFile.h"
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extern "C" {
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#include <libavcodec/avcodec.h>
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}
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class FfmpegAudio;
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struct AVFormatContext;
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struct AVCodecContext;
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struct AVStream;
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struct AVPacket;
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struct SwrContext;
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/**
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* A stream that generates a sequence of audio samples.
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*/
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class EXPCL_FFMPEG FfmpegAudioCursor : public MovieAudioCursor {
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friend class FfmpegAudio;
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PUBLISHED:
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FfmpegAudioCursor(FfmpegAudio *src);
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virtual ~FfmpegAudioCursor();
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virtual void seek(double offset);
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public:
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virtual int read_samples(int n, int16_t *data);
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protected:
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void fetch_packet();
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bool reload_buffer();
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void cleanup();
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Filename _filename;
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int _initial_dts;
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AVPacket *_packet;
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int _packet_size;
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unsigned char *_packet_data;
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AVFormatContext *_format_ctx;
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AVCodecContext *_audio_ctx;
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FfmpegVirtualFile _ffvfile;
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int _audio_index;
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double _audio_timebase;
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AVFrame *_frame;
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int16_t *_buffer;
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int _buffer_size;
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int16_t *_buffer_alloc;
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int _buffer_head;
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int _buffer_tail;
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SwrContext *_resample_ctx;
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public:
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static TypeHandle get_class_type() {
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return _type_handle;
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}
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static void init_type() {
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MovieAudioCursor::init_type();
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register_type(_type_handle, "FfmpegAudioCursor",
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MovieAudioCursor::get_class_type());
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}
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virtual TypeHandle get_type() const {
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return get_class_type();
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}
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virtual TypeHandle force_init_type() {init_type(); return get_class_type();}
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private:
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static TypeHandle _type_handle;
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};
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#include "ffmpegAudioCursor.I"
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#endif // FFMPEGAUDIOCURSOR_H
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