| /* 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_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[]; |
| |
| struct FLAC__StreamDecoderPrivate; |
| typedef struct { |
| /* these fields are read-only and valid as of the last write_callback() */ |
| unsigned channels; |
| FLAC__ChannelAssignment channel_assignment; |
| unsigned bits_per_sample; |
| unsigned sample_rate; /* in Hz */ |
| unsigned blocksize; /* in samples (per channel) */ |
| FLAC__StreamDecoderState state; /* must be FLAC__STREAM_DECODER_UNINITIALIZED when passed to FLAC__stream_decoder_init() */ |
| struct FLAC__StreamDecoderPrivate *guts; /* must be 0 when passed to FLAC__stream_decoder_init() */ |
| } FLAC__StreamDecoder; |
| |
| FLAC__StreamDecoder *FLAC__stream_decoder_get_new_instance(); |
| void FLAC__stream_decoder_free_instance(FLAC__StreamDecoder *decoder); |
| FLAC__StreamDecoderState FLAC__stream_decoder_init( |
| FLAC__StreamDecoder *decoder, |
| FLAC__StreamDecoderReadStatus (*read_callback)(const FLAC__StreamDecoder *decoder, byte buffer[], unsigned *bytes, void *client_data), |
| FLAC__StreamDecoderWriteStatus (*write_callback)(const FLAC__StreamDecoder *decoder, const FLAC__Frame *frame, const int32 *buffer[], void *client_data), |
| void (*metadata_callback)(const FLAC__StreamDecoder *decoder, const FLAC__StreamMetaData *metadata, void *client_data), |
| void (*error_callback)(const FLAC__StreamDecoder *decoder, FLAC__StreamDecoderErrorStatus status, void *client_data), |
| void *client_data |
| ); |
| void FLAC__stream_decoder_finish(FLAC__StreamDecoder *decoder); |
| bool FLAC__stream_decoder_flush(FLAC__StreamDecoder *decoder); |
| bool FLAC__stream_decoder_reset(FLAC__StreamDecoder *decoder); |
| bool FLAC__stream_decoder_process_whole_stream(FLAC__StreamDecoder *decoder); |
| bool FLAC__stream_decoder_process_metadata(FLAC__StreamDecoder *decoder); |
| bool FLAC__stream_decoder_process_one_frame(FLAC__StreamDecoder *decoder); |
| bool FLAC__stream_decoder_process_remaining_frames(FLAC__StreamDecoder *decoder); |
| |
| #endif |