| 0,0 → 1,164 |
|---|
| /* libFLAC - Free Lossless Audio Codec library |
| * Copyright (C) 2000,2001 Josh Coalson |
| * |
| * This library is free software; you can redistribute it and/or |
| * modify it under the terms of the GNU Library General Public |
| * License as published by the Free Software Foundation; either |
| * version 2 of the License, or (at your option) any later version. |
| * |
| * This library 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 |
| * Library General Public License for more details. |
| * |
| * You should have received a copy of the GNU Library General Public |
| * License along with this library; if not, write to the |
| * Free Software Foundation, Inc., 59 Temple Place - Suite 330, |
| * Boston, MA 02111-1307, USA. |
| */ |
| |
| #ifndef FLAC__STREAM_DECODER_H |
| #define FLAC__STREAM_DECODER_H |
| |
| #include "format.h" |
| |
| typedef enum { |
| FLAC__STREAM_DECODER_SEARCH_FOR_METADATA = 0, |
| FLAC__STREAM_DECODER_READ_METADATA, |
| FLAC__STREAM_DECODER_SEARCH_FOR_FRAME_SYNC, |
| FLAC__STREAM_DECODER_READ_FRAME, |
| FLAC__STREAM_DECODER_END_OF_STREAM, |
| FLAC__STREAM_DECODER_ABORTED, |
| FLAC__STREAM_DECODER_UNPARSEABLE_STREAM, |
| FLAC__STREAM_DECODER_MEMORY_ALLOCATION_ERROR, |
| FLAC__STREAM_DECODER_ALREADY_INITIALIZED, |
| FLAC__STREAM_DECODER_INVALID_CALLBACK, |
| FLAC__STREAM_DECODER_UNINITIALIZED |
| } FLAC__StreamDecoderState; |
| extern const char *FLAC__StreamDecoderStateString[]; |
| |
| typedef enum { |
| FLAC__STREAM_DECODER_READ_CONTINUE, |
| FLAC__STREAM_DECODER_READ_END_OF_STREAM, |
| FLAC__STREAM_DECODER_READ_ABORT |
| } FLAC__StreamDecoderReadStatus; |
| extern const char *FLAC__StreamDecoderReadStatusString[]; |
| |
| typedef enum { |
| FLAC__STREAM_DECODER_WRITE_CONTINUE, |
| FLAC__STREAM_DECODER_WRITE_ABORT |
| } FLAC__StreamDecoderWriteStatus; |
| extern const char *FLAC__StreamDecoderWriteStatusString[]; |
| |
| typedef enum { |
| FLAC__STREAM_DECODER_ERROR_LOST_SYNC, |
| FLAC__STREAM_DECODER_ERROR_BAD_HEADER, |
| FLAC__STREAM_DECODER_ERROR_FRAME_CRC_MISMATCH |
| } FLAC__StreamDecoderErrorStatus; |
| extern const char *FLAC__StreamDecoderErrorStatusString[]; |
| |
| /*********************************************************************** |
| * |
| * class FLAC__StreamDecoder |
| * |
| ***********************************************************************/ |
| |
| struct FLAC__StreamDecoderProtected; |
| struct FLAC__StreamDecoderPrivate; |
| typedef struct { |
| struct FLAC__StreamDecoderProtected *protected; |
| struct FLAC__StreamDecoderPrivate *private; |
| } FLAC__StreamDecoder; |
| |
| /*********************************************************************** |
| * |
| * Class constructor/destructor |
| * |
| ***********************************************************************/ |
| |
| /* |
| * Any parameters that are not set before FLAC__stream_decoder_init() |
| * will take on the defaults from the constructor, shown below. |
| * For more on what the parameters mean, see the documentation. |
| * |
| * (*read_callback)() (DEFAULT: NULL ) The callbacks are the only values that MUST be set before FLAC__stream_decoder_init() |
| * (*write_callback)() (DEFAULT: NULL ) |
| * (*metadata_callback)() (DEFAULT: NULL ) |
| * (*error_callback)() (DEFAULT: NULL ) |
| * void* client_data (DEFAULT: NULL ) passed back through the callbacks |
| */ |
| FLAC__StreamDecoder *FLAC__stream_decoder_new(); |
| void FLAC__stream_decoder_delete(FLAC__StreamDecoder *); |
| |
| /*********************************************************************** |
| * |
| * Public class method prototypes |
| * |
| ***********************************************************************/ |
| |
| /* |
| * Various "set" methods. These may only be called when the decoder |
| * is in the state FLAC__STREAM_DECODER_UNINITIALIZED, i.e. after |
| * FLAC__stream_decoder_new() or FLAC__stream_decoder_finish(), but |
| * before FLAC__stream_decoder_init(). If this is the case they will |
| * return true, otherwise false. |
| * |
| * NOTE that these functions do not validate the values as many are |
| * interdependent. The FLAC__stream_decoder_init() function will do |
| * this, so make sure to pay attention to the state returned by |
| * FLAC__stream_decoder_init(). |
| * |
| * Any parameters that are not set before FLAC__stream_decoder_init() |
| * will take on the defaults from the constructor. NOTE that |
| * FLAC__stream_decoder_flush() or FLAC__stream_decoder_reset() do |
| * NOT reset the values to the constructor defaults. |
| */ |
| FLAC__bool FLAC__stream_decoder_set_read_callback(const FLAC__StreamDecoder *decoder, FLAC__StreamDecoderReadStatus (*value)(const FLAC__StreamDecoder *decoder, FLAC__byte buffer[], unsigned *bytes, void *client_data)); |
| FLAC__bool FLAC__stream_decoder_set_write_callback(const FLAC__StreamDecoder *decoder, FLAC__StreamDecoderWriteStatus (*value)(const FLAC__StreamDecoder *decoder, const FLAC__Frame *frame, const FLAC__int32 *buffer[], void *client_data)); |
| FLAC__bool FLAC__stream_decoder_set_metadata_callback(const FLAC__StreamDecoder *decoder, void (*value)(const FLAC__StreamDecoder *decoder, const FLAC__StreamMetaData *metadata, void *client_data)); |
| FLAC__bool FLAC__stream_decoder_set_error_callback(const FLAC__StreamDecoder *decoder, void (*value)(const FLAC__StreamDecoder *decoder, FLAC__StreamDecoderErrorStatus status, void *client_data)); |
| FLAC__bool FLAC__stream_decoder_set_client_data(const FLAC__StreamDecoder *decoder, void *value); |
| |
| /* |
| * Methods to return the current stream decoder state, number |
| * of channels, channel assignment, bits-per-sample, sample |
| * rate in Hz, and blocksize in samples. All but the decoder |
| * state will only be valid after decoding has started. |
| */ |
| FLAC__StreamDecoderState FLAC__stream_decoder_get_state(const FLAC__StreamDecoder *decoder); |
| unsigned FLAC__stream_decoder_get_channels(const FLAC__StreamDecoder *decoder); |
| FLAC__ChannelAssignment FLAC__stream_decoder_get_channel_assignment(const FLAC__StreamDecoder *decoder); |
| unsigned FLAC__stream_decoder_get_bits_per_sample(const FLAC__StreamDecoder *decoder); |
| unsigned FLAC__stream_decoder_get_sample_rate(const FLAC__StreamDecoder *decoder); |
| unsigned FLAC__stream_decoder_get_blocksize(const FLAC__StreamDecoder *decoder); |
| |
| /* |
| * Initialize the instance; should be called after construction and |
| * 'set' calls but before any of the 'process' calls. Will set and |
| * return the decoder state, which will be |
| * FLAC__STREAM_DECODER_SEARCH_FOR_METADATA if initialization |
| * succeeded. |
| */ |
| FLAC__StreamDecoderState FLAC__stream_decoder_init(FLAC__StreamDecoder *decoder); |
| |
| /* |
| * Flush the decoding buffer, release resources, and return the decoder |
| * state to FLAC__STREAM_DECODER_UNINITIALIZED. |
| */ |
| void FLAC__stream_decoder_finish(FLAC__StreamDecoder *decoder); |
| |
| /* |
| * state control methods |
| */ |
| FLAC__bool FLAC__stream_decoder_flush(FLAC__StreamDecoder *decoder); |
| FLAC__bool FLAC__stream_decoder_reset(FLAC__StreamDecoder *decoder); |
| |
| /* |
| * Methods for decoding the data |
| */ |
| FLAC__bool FLAC__stream_decoder_process_whole_stream(FLAC__StreamDecoder *decoder); |
| FLAC__bool FLAC__stream_decoder_process_metadata(FLAC__StreamDecoder *decoder); |
| FLAC__bool FLAC__stream_decoder_process_one_frame(FLAC__StreamDecoder *decoder); |
| FLAC__bool FLAC__stream_decoder_process_remaining_frames(FLAC__StreamDecoder *decoder); |
| |
| #endif |