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/*************************************************************
*
* streaming external for PD
*
* File: streamogg.h
*
* Description: Declaration of the streamer class for OGG/vorbis
*
* Author: Thomas Grill (t.grill@gmx.net)
*
*************************************************************/
#ifndef __STREAMOGG_H
#define __STREAMOGG_H
#include "stream.h"
extern "C" {
#include <vorbis/codec.h>
#include <vorbis/vorbisfile.h>
}
//! Class representing an OGG stream.
class StreamOGG:
public Stream
{
public:
StreamOGG();
//! Get named tag of stream
virtual std::string getTag(const char *tag) const;
//! Get number of stream channels
virtual int getChannels() const { return ov_inf?ov_inf->channels:0; }
//! Get stream sample rate
virtual float getSamplerate() const { return ov_inf?(float)ov_inf->rate:0; }
//! Get nominal stream bit rate
virtual float getBitrate() const { return ov_inf?(float)ov_inf->bitrate_nominal:0; }
protected:
//! Reset encoder state (disconnect and clear FIFOs)
virtual void Reset();
//! Init decoder
virtual bool WorkInit();
//! Decode data to channel buffers
virtual int DataRead(int frames);
// OGG/Vorbis data
OggVorbis_File ov_file;
ov_callbacks callbacks;
vorbis_info *ov_inf;
vorbis_comment *ov_comm;
// OGG callbacks
static size_t read_func(void *ptr, size_t size, size_t nmemb, void *datasource);
static int close_func(void *datasource);
static int seek_func(void *datasource, ogg_int64_t offset, int whence) { return -1; }
static long tell_func(void *datasource) { return -1; }
};
#endif // __STREAMOGG_H
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