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/*
* Copyright (C) 2003-2010 August Black
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*
*/
#ifndef _READMEDIA_H_
#define _READMEDIA_H_
#include <stdio.h>
#include <stdlib.h>
#include <pthread.h>
#include "FifoAudioFrames.h"
#include "FifoVideoFrames.h"
#ifndef _AVDEC_H_
#define _AVDEC_H_
extern "C" {
#include <avdec.h>
}
#endif
#define STATE_EMPTY 0
#define STATE_OPENING 1
#define STATE_READY 2
#define SRC_MAX 256.0
#define SRC_MIN 1/256.0
#define CMD_START 3
#define CMD_NULL 0
#define CMD_OPEN 1
#define CMD_QUIT 2
#define SEEK_NOTHING -1
#define SEEK_REWIND -2
class ReadMedia {
public:
ReadMedia();
~ReadMedia();
void openFile( char * filename, int vfifosize, int afifosize, int samples_per_frame);
int decodeAudio( gavl_audio_frame_t *af);
int decodeVideo( gavl_video_frame_t *vf);
bool isReady(); // see if file is loaded or not
bool getEOF();
bool rewind();
bool rewindNoFlush();
bool frameSeek(int64_t frames);
bool pcmSeek(int64_t samples);
bool timeSeek(double seconds);
int getAudioSamplerate();
int getAudioChannelCount();
int getVideoTimescale();
double getLengthInSeconds();
gavl_time_t getLengthInGavlTime();
int64_t getLengthInAudioSamples();
int64_t getLengthInVideoFrames();
int getAudioStreamCount();
int getVideoStreamCount();
// this is used to sync AV frames
void pealOffVideoFrames(int howmany);
void dump() { lockState(); if (m_file != NULL) bgav_dump(m_file); unlockState(); };
double getATimeInSeconds();
double getVTimeInSeconds();
//float getTimeInSeconds();
float getAudioFifoSizePercentage();
void copyAudioFormat(gavl_audio_format_t * dst );
void copyVideoFormat(gavl_video_format_t * dst );
void setLoop( bool b);
bool getLoop();
//|||||||||||||||||||||||||||||||||||||||||||||||||||||||||
// NON-PUBLIC public functions
//|||||||||||||||||||||||||||||||||||||||||||||||||||||||||
int64_t pcmSeek();
int64_t frameSeek();
//bool seek(gavl_time_t gt);
void killAVThreads();
bool startAVThreads();
void setAudioStreamCount(int s);
void setVideoStreamCount(int s);
FifoAudioFrames * getAudioFifo();
FifoVideoFrames * getVideoFifo();
bgav_t * getFile();
char * getFilename();
gavl_audio_frame_t * getAudioFrame();
gavl_video_frame_t * getVideoFrame();
void closeFile();
void clearFile();
void setState(int b);
int getState();
gavl_audio_format_t * getAudioFormat() { return &m_audio_format;};
gavl_video_format_t * getVideoFormat() { return &m_video_format;};
void setCommand( int c);
int getCommand();
void setAEOF(bool b);
void setVEOF(bool b);
bool getAEOF();
bool getVEOF();
int getSamplesPerFrame();
int lockAV();
int unlockAV();
//int lockAV(const char *s);
//int unlockAV(const char *s);
int lockState();
int unlockState();
//int lockState(const char *s);
//int unlockState(const char *s);
void waitA();
void waitV();
void signalAV();
void signalA();
void signalV();
void waitDispatch();
void signalDispatcher();
bool initFormat();
void setOpenCallback(void (*oc)(void *), void *v );
void callOpenCallback();
void setBufferCallback( bgav_buffer_callback bc, void *v );
bool quitAVThreads();
private:
bool quit_av_threads;
// callbacks for open, input buffer etc.
void * m_open_callback_data;
void (* m_open_callback)(void * v);
bgav_buffer_callback m_buffer_callback;
void * m_buffer_callback_data;
// end of file for audio and video
bool m_aeof;
bool m_veof;
// seek vars
int64_t m_pcm_seek;
int64_t m_frame_seek;
double m_length_in_seconds;
gavl_time_t m_length_in_gavltime;
int64_t m_num_samples;
int64_t m_num_frames;
// command for dispatcher thread
int m_cmd;
// internal state of media reader and
// current filename
int m_state;
char m_filename[1024];
bool m_loop;
// current time of audio in seconds
//double m_atime;
//double m_vtime;
int m_afifosize;
int m_vfifosize;
int m_audio_stream_count;
int m_video_stream_count;
bgav_t * m_file;
bgav_options_t * m_opt;
// audio stuff
gavl_audio_frame_t * m_audio_frame;
gavl_audio_format_t m_audio_format;
//video stuff
gavl_video_frame_t * m_video_frame;
gavl_video_format_t m_video_format;
FifoAudioFrames *m_fifoaudio;
FifoVideoFrames *m_fifovideo;
int m_audio_thread_ret;
int m_video_thread_ret;
int m_dispatcher_thread_ret;
pthread_t m_thread_fillaudiofifo;
pthread_t m_thread_fillvideofifo;
pthread_t m_thread_dispatch;
pthread_mutex_t m_condmut_a;
pthread_mutex_t m_condmut_v;
pthread_mutex_t m_condmut_dispatch;
pthread_mutex_t m_state_mut;
pthread_mutex_t m_av_mut;
pthread_cond_t m_cond_a;
pthread_cond_t m_cond_v;
pthread_cond_t m_cond_dispatch;
};
#endif
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