FLAC  1.3.1
encoder.h
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1 /* libFLAC++ - Free Lossless Audio Codec library
2  * Copyright (C) 2002-2009 Josh Coalson
3  * Copyright (C) 2011-2014 Xiph.Org Foundation
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32 
33 #ifndef FLACPP__ENCODER_H
34 #define FLACPP__ENCODER_H
35 
36 #include "export.h"
37 
38 #include "FLAC/stream_encoder.h"
39 #include "decoder.h"
40 #include "metadata.h"
41 
42 
79 namespace FLAC {
80  namespace Encoder {
81 
102  class FLACPP_API Stream {
103  public:
106  class FLACPP_API State {
107  public:
108  inline State(::FLAC__StreamEncoderState state): state_(state) { }
109  inline operator ::FLAC__StreamEncoderState() const { return state_; }
110  inline const char *as_cstring() const { return ::FLAC__StreamEncoderStateString[state_]; }
111  inline const char *resolved_as_cstring(const Stream &encoder) const { return ::FLAC__stream_encoder_get_resolved_state_string(encoder.encoder_); }
112  protected:
114  };
115 
116  Stream();
117  virtual ~Stream();
118 
120 
124  virtual bool is_valid() const;
125  inline operator bool() const { return is_valid(); }
126 
127 
128  virtual bool set_ogg_serial_number(long value);
129  virtual bool set_verify(bool value);
130  virtual bool set_streamable_subset(bool value);
131  virtual bool set_channels(unsigned value);
132  virtual bool set_bits_per_sample(unsigned value);
133  virtual bool set_sample_rate(unsigned value);
134  virtual bool set_compression_level(unsigned value);
135  virtual bool set_blocksize(unsigned value);
136  virtual bool set_do_mid_side_stereo(bool value);
137  virtual bool set_loose_mid_side_stereo(bool value);
138  virtual bool set_apodization(const char *specification);
139  virtual bool set_max_lpc_order(unsigned value);
140  virtual bool set_qlp_coeff_precision(unsigned value);
141  virtual bool set_do_qlp_coeff_prec_search(bool value);
142  virtual bool set_do_escape_coding(bool value);
143  virtual bool set_do_exhaustive_model_search(bool value);
144  virtual bool set_min_residual_partition_order(unsigned value);
145  virtual bool set_max_residual_partition_order(unsigned value);
146  virtual bool set_rice_parameter_search_dist(unsigned value);
147  virtual bool set_total_samples_estimate(FLAC__uint64 value);
148  virtual bool set_metadata(::FLAC__StreamMetadata **metadata, unsigned num_blocks);
149  virtual bool set_metadata(FLAC::Metadata::Prototype **metadata, unsigned num_blocks);
150 
151  /* get_state() is not virtual since we want subclasses to be able to return their own state */
152  State get_state() const;
153  virtual Decoder::Stream::State get_verify_decoder_state() const;
154  virtual void get_verify_decoder_error_stats(FLAC__uint64 *absolute_sample, unsigned *frame_number, unsigned *channel, unsigned *sample, FLAC__int32 *expected, FLAC__int32 *got);
155  virtual bool get_verify() const;
156  virtual bool get_streamable_subset() const;
157  virtual bool get_do_mid_side_stereo() const;
158  virtual bool get_loose_mid_side_stereo() const;
159  virtual unsigned get_channels() const;
160  virtual unsigned get_bits_per_sample() const;
161  virtual unsigned get_sample_rate() const;
162  virtual unsigned get_blocksize() const;
163  virtual unsigned get_max_lpc_order() const;
164  virtual unsigned get_qlp_coeff_precision() const;
165  virtual bool get_do_qlp_coeff_prec_search() const;
166  virtual bool get_do_escape_coding() const;
167  virtual bool get_do_exhaustive_model_search() const;
168  virtual unsigned get_min_residual_partition_order() const;
169  virtual unsigned get_max_residual_partition_order() const;
170  virtual unsigned get_rice_parameter_search_dist() const;
171  virtual FLAC__uint64 get_total_samples_estimate() const;
172 
175 
176  virtual bool finish();
177 
178  virtual bool process(const FLAC__int32 * const buffer[], unsigned samples);
179  virtual bool process_interleaved(const FLAC__int32 buffer[], unsigned samples);
180  protected:
182  virtual ::FLAC__StreamEncoderReadStatus read_callback(FLAC__byte buffer[], size_t *bytes);
183 
185  virtual ::FLAC__StreamEncoderWriteStatus write_callback(const FLAC__byte buffer[], size_t bytes, unsigned samples, unsigned current_frame) = 0;
186 
188  virtual ::FLAC__StreamEncoderSeekStatus seek_callback(FLAC__uint64 absolute_byte_offset);
189 
191  virtual ::FLAC__StreamEncoderTellStatus tell_callback(FLAC__uint64 *absolute_byte_offset);
192 
194  virtual void metadata_callback(const ::FLAC__StreamMetadata *metadata);
195 
196 #if (defined _MSC_VER) || (defined __BORLANDC__) || (defined __GNUG__ && (__GNUG__ < 2 || (__GNUG__ == 2 && __GNUC_MINOR__ < 96))) || (defined __SUNPRO_CC)
197  // lame hack: some MSVC/GCC versions can't see a protected encoder_ from nested State::resolved_as_cstring()
198  friend State;
199 #endif
200  ::FLAC__StreamEncoder *encoder_;
201 
202  static ::FLAC__StreamEncoderReadStatus read_callback_(const ::FLAC__StreamEncoder *encoder, FLAC__byte buffer[], size_t *bytes, void *client_data);
203  static ::FLAC__StreamEncoderWriteStatus write_callback_(const ::FLAC__StreamEncoder *encoder, const FLAC__byte buffer[], size_t bytes, unsigned samples, unsigned current_frame, void *client_data);
204  static ::FLAC__StreamEncoderSeekStatus seek_callback_(const FLAC__StreamEncoder *encoder, FLAC__uint64 absolute_byte_offset, void *client_data);
205  static ::FLAC__StreamEncoderTellStatus tell_callback_(const FLAC__StreamEncoder *encoder, FLAC__uint64 *absolute_byte_offset, void *client_data);
206  static void metadata_callback_(const ::FLAC__StreamEncoder *encoder, const ::FLAC__StreamMetadata *metadata, void *client_data);
207  private:
208  // Private and undefined so you can't use them:
209  Stream(const Stream &);
210  void operator=(const Stream &);
211  };
212 
233  class FLACPP_API File: public Stream {
234  public:
235  File();
236  virtual ~File();
237 
238  virtual ::FLAC__StreamEncoderInitStatus init(FILE *file);
239  virtual ::FLAC__StreamEncoderInitStatus init(const char *filename);
240  virtual ::FLAC__StreamEncoderInitStatus init(const std::string &filename);
241  virtual ::FLAC__StreamEncoderInitStatus init_ogg(FILE *file);
242  virtual ::FLAC__StreamEncoderInitStatus init_ogg(const char *filename);
243  virtual ::FLAC__StreamEncoderInitStatus init_ogg(const std::string &filename);
244  protected:
246  virtual void progress_callback(FLAC__uint64 bytes_written, FLAC__uint64 samples_written, unsigned frames_written, unsigned total_frames_estimate);
247 
249  virtual ::FLAC__StreamEncoderWriteStatus write_callback(const FLAC__byte buffer[], size_t bytes, unsigned samples, unsigned current_frame);
250  private:
251  static void progress_callback_(const ::FLAC__StreamEncoder *encoder, FLAC__uint64 bytes_written, FLAC__uint64 samples_written, unsigned frames_written, unsigned total_frames_estimate, void *client_data);
252 
253  // Private and undefined so you can't use them:
254  File(const Stream &);
255  void operator=(const Stream &);
256  };
257 
258  }
259 }
260 
261 #endif
This module contains the functions which implement the stream encoder.
Definition: encoder.h:106
This class wraps the FLAC__StreamEncoder. If you are encoding to a file, FLAC::Encoder::File may be m...
Definition: encoder.h:102
FLAC__StreamEncoderTellStatus
Definition: stream_encoder.h:432
Definition: decoder.h:78
FLAC__StreamEncoderSeekStatus
Definition: stream_encoder.h:409
This module provides classes for creating and manipulating FLAC metadata blocks in memory...
FLAC__StreamEncoderReadStatus
Definition: stream_encoder.h:363
FLAC__StreamEncoderState
Definition: stream_encoder.h:241
const char * FLAC__stream_encoder_get_resolved_state_string(const FLAC__StreamEncoder *encoder)
This module contains #defines and symbols for exporting function calls, and providing version informa...
Definition: format.h:834
This class wraps the FLAC__StreamEncoder. If you are not encoding to a file, you may need to use FLAC...
Definition: encoder.h:233
This module contains the classes which implement the various decoders.
FLAC__StreamEncoderInitStatus
Definition: stream_encoder.h:293
FLAC__StreamEncoderWriteStatus
Definition: stream_encoder.h:389
Definition: metadata.h:109
Definition: decoder.h:104
Definition: stream_encoder.h:465
const char *const FLAC__StreamEncoderStateString[]