129 lines
4.8 KiB
C++
129 lines
4.8 KiB
C++
/* libFLAC++ - Free Lossless Audio Codec library
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* Copyright (C) 2002 Josh Coalson
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Library General Public
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* License as published by the Free Software Foundation; either
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* version 2 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Library General Public License for more details.
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*
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* You should have received a copy of the GNU Library General Public
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* License along with this library; if not, write to the
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* Free Software Foundation, Inc., 59 Temple Place - Suite 330,
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* Boston, MA 02111-1307, USA.
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*/
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#ifndef FLACPP__ENCODER_H
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#define FLACPP__ENCODER_H
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#include "FLAC/stream_encoder.h"
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// ===============================================================
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//
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// Full documentation for the encoder interface can be found
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// in the C layer in include/FLAC/stream_encoder.h
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//
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// ===============================================================
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namespace FLAC {
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namespace Encoder {
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// ============================================================
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//
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// Equivalent: FLAC__StreamEncoder
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//
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// ----------------------------------------------------------
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//
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// The only real difference here is that instead of passing
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// in C function pointers for callbacks, you inherit from
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// stream and provide implementations for the callbacks in
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// the derived class; because of this there is no need for a
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// 'client_data' property.
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//
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// ============================================================
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class Stream {
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public:
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class State {
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public:
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inline State(::FLAC__StreamEncoderState state): state_(state) { }
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inline operator ::FLAC__StreamEncoderState() const { return state_; }
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inline const char *as_cstring() const { return ::FLAC__StreamEncoderStateString[state_]; }
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protected:
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::FLAC__StreamEncoderState state_;
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};
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Stream();
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virtual ~Stream();
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bool is_valid() const;
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inline operator bool() const { return is_valid(); }
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bool set_streamable_subset(bool value);
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bool set_do_mid_side_stereo(bool value);
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bool set_loose_mid_side_stereo(bool value);
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bool set_channels(unsigned value);
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bool set_bits_per_sample(unsigned value);
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bool set_sample_rate(unsigned value);
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bool set_blocksize(unsigned value);
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bool set_max_lpc_order(unsigned value);
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bool set_qlp_coeff_precision(unsigned value);
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bool set_do_qlp_coeff_prec_search(bool value);
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bool set_do_escape_coding(bool value);
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bool set_do_exhaustive_model_search(bool value);
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bool set_min_residual_partition_order(unsigned value);
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bool set_max_residual_partition_order(unsigned value);
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bool set_rice_parameter_search_dist(unsigned value);
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bool set_total_samples_estimate(FLAC__uint64 value);
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bool set_metadata(::FLAC__StreamMetadata **metadata, unsigned num_blocks);
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State get_state() const;
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bool get_streamable_subset() const;
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bool get_do_mid_side_stereo() const;
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bool get_loose_mid_side_stereo() const;
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unsigned get_channels() const;
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unsigned get_bits_per_sample() const;
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unsigned get_sample_rate() const;
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unsigned get_blocksize() const;
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unsigned get_max_lpc_order() const;
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unsigned get_qlp_coeff_precision() const;
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bool get_do_qlp_coeff_prec_search() const;
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bool get_do_escape_coding() const;
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bool get_do_exhaustive_model_search() const;
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unsigned get_min_residual_partition_order() const;
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unsigned get_max_residual_partition_order() const;
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unsigned get_rice_parameter_search_dist() const;
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// Initialize the instance; as with the C interface,
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// init() should be called after construction and 'set'
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// calls but before any of the 'process' calls.
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State init();
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void finish();
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bool process(const FLAC__int32 * const buffer[], unsigned samples);
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bool process_interleaved(const FLAC__int32 buffer[], unsigned samples);
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protected:
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virtual ::FLAC__StreamEncoderWriteStatus write_callback(const FLAC__byte buffer[], unsigned bytes, unsigned samples, unsigned current_frame) = 0;
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virtual void metadata_callback(const ::FLAC__StreamMetadata *metadata) = 0;
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::FLAC__StreamEncoder *encoder_;
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private:
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static ::FLAC__StreamEncoderWriteStatus write_callback_(const ::FLAC__StreamEncoder *encoder, const FLAC__byte buffer[], unsigned bytes, unsigned samples, unsigned current_frame, void *client_data);
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static void metadata_callback_(const ::FLAC__StreamEncoder *encoder, const ::FLAC__StreamMetadata *metadata, void *client_data);
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// Private and undefined so you can't use them:
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Stream(const Stream &);
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void operator=(const Stream &);
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};
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};
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};
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#endif
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