81 lines
2.4 KiB
C++
81 lines
2.4 KiB
C++
#ifndef INCLUDED_AUDIOIO_OGG_H
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#define INCLUDED_AUDIOIO_OGG_H
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#include <string>
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#include <cstdio>
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#include "audioio-buffered.h"
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#include "audioio-forked-stream.h"
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/**
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* Interface for Ogg Vorbis decoders and encoders using UNIX
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* pipe i/o. By default ogg123 and vorbize are used.
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*
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* @author Kai Vehmanen
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*/
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class OGG_VORBIS_INTERFACE : public AUDIO_IO_BUFFERED,
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public AUDIO_IO_FORKED_STREAM {
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private:
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static std::string default_input_cmd;
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static std::string default_output_cmd;
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public:
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static void set_input_cmd(const std::string& value);
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static void set_output_cmd(const std::string& value);
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static long int default_output_default_bitrate;
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public:
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OGG_VORBIS_INTERFACE (const std::string& name = "");
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virtual ~OGG_VORBIS_INTERFACE(void);
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virtual OGG_VORBIS_INTERFACE* clone(void) const { return new OGG_VORBIS_INTERFACE(*this); }
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virtual OGG_VORBIS_INTERFACE* new_expr(void) const { return new OGG_VORBIS_INTERFACE(*this); }
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virtual std::string name(void) const { return "Ogg Vorbis stream"; }
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virtual std::string description(void) const { return "Interface for Ogg Vorbis decoders and encoders using UNIX pipe i/o."; }
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virtual std::string parameter_names(void) const { return "label,bitrate"; }
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virtual bool locked_audio_format(void) const { return true; }
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virtual int supported_io_modes(void) const { return io_read | io_write; }
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virtual bool supports_seeking(void) const { return false; }
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virtual void open(void) throw(AUDIO_IO::SETUP_ERROR &);
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virtual void close(void);
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virtual long int read_samples(void* target_buffer, long int samples);
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virtual void write_samples(void* target_buffer, long int samples);
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virtual bool finished(void) const { return(finished_rep); }
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virtual void set_parameter(int param, std::string value);
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virtual std::string get_parameter(int param) const;
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virtual void start_io(void);
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virtual void stop_io(void);
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protected:
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/* functions called by AUDIO_IO_FORKED_STREAM that require
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* the use of AUDIO_IO methods */
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virtual bool do_supports_seeking(void) const { return supports_seeking(); }
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virtual void do_set_position_in_samples(SAMPLE_SPECS::sample_pos_t pos) { set_position_in_samples(pos); }
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private:
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bool triggered_rep;
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bool finished_rep;
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long int bytes_rep;
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long int bitrate_rep;
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int filedes_rep;
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FILE* f1_rep;
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void fork_input_process(void);
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void fork_output_process(void);
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};
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#endif
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