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