787 lines
30 KiB
C
787 lines
30 KiB
C
|
/* libOggFLAC - Free Lossless Audio Codec + Ogg library
|
||
|
* Copyright (C) 2002 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 OggFLAC__SEEKABLE_STREAM_DECODER_H
|
||
|
#define OggFLAC__SEEKABLE_STREAM_DECODER_H
|
||
|
|
||
|
#include "FLAC/seekable_stream_decoder.h"
|
||
|
|
||
|
#ifdef __cplusplus
|
||
|
extern "C" {
|
||
|
#endif
|
||
|
|
||
|
|
||
|
/** \file include/OggFLAC/seekable_stream_decoder.h
|
||
|
*
|
||
|
* \brief
|
||
|
* This module contains the functions which implement the seekable stream
|
||
|
* decoder.
|
||
|
*
|
||
|
* See the detailed documentation in the
|
||
|
* \link oggflac_seekable_stream_decoder seekable stream decoder \endlink module.
|
||
|
*/
|
||
|
|
||
|
/** \defgroup oggflac_seekable_stream_decoder OggFLAC/seekable_stream_decoder.h: seekable stream decoder interface
|
||
|
* \ingroup oggflac_decoder
|
||
|
*
|
||
|
* \brief
|
||
|
* This module contains the functions which implement the seekable stream
|
||
|
* decoder.
|
||
|
*
|
||
|
* The basic usage of this decoder is as follows:
|
||
|
* - The program creates an instance of a decoder using
|
||
|
* OggFLAC__seekable_stream_decoder_new().
|
||
|
* - The program overrides the default settings and sets callbacks for
|
||
|
* reading, writing, seeking, error reporting, and metadata reporting
|
||
|
* using OggFLAC__seekable_stream_decoder_set_*() functions.
|
||
|
* - The program initializes the instance to validate the settings and
|
||
|
* prepare for decoding using OggFLAC__seekable_stream_decoder_init().
|
||
|
* - The program calls the OggFLAC__seekable_stream_decoder_process_*()
|
||
|
* functions to decode data, which subsequently calls the callbacks.
|
||
|
* - The program finishes the decoding with
|
||
|
* OggFLAC__seekable_stream_decoder_finish(), which flushes the input and
|
||
|
* output and resets the decoder to the uninitialized state.
|
||
|
* - The instance may be used again or deleted with
|
||
|
* OggFLAC__seekable_stream_decoder_delete().
|
||
|
*
|
||
|
* The seekable stream decoder is a wrapper around the
|
||
|
* \link oggflac_stream_decoder stream decoder \endlink which also provides
|
||
|
* seeking capability. In addition to the Read/Write/Metadata/Error
|
||
|
* callbacks of the stream decoder, the user must also provide the following:
|
||
|
*
|
||
|
* - Seek callback - This function will be called when the decoder wants to
|
||
|
* seek to an absolute position in the stream.
|
||
|
* - Tell callback - This function will be called when the decoder wants to
|
||
|
* know the current absolute position of the stream.
|
||
|
* - Length callback - This function will be called when the decoder wants
|
||
|
* to know length of the stream. The seeking algorithm currently requires
|
||
|
* that the overall stream length be known.
|
||
|
* - EOF callback - This function will be called when the decoder wants to
|
||
|
* know if it is at the end of the stream. This could be synthesized from
|
||
|
* the tell and length callbacks but it may be more expensive that way, so
|
||
|
* there is a separate callback for it.
|
||
|
*
|
||
|
* Seeking is exposed through the
|
||
|
* OggFLAC__seekable_stream_decoder_seek_absolute() method. At any point after
|
||
|
* the seekable stream decoder has been initialized, the user can call this
|
||
|
* function to seek to an exact sample within the stream. Subsequently, the
|
||
|
* first time the write callback is called it will be passed a (possibly
|
||
|
* partial) block starting at that sample.
|
||
|
*
|
||
|
* The seekable stream decoder also provides MD5 signature checking. If
|
||
|
* this is turned on before initialization,
|
||
|
* OggFLAC__seekable_stream_decoder_finish() will report when the decoded MD5
|
||
|
* signature does not match the one stored in the STREAMINFO block. MD5
|
||
|
* checking is automatically turned off (until the next
|
||
|
* OggFLAC__seekable_stream_decoder_reset()) if there is no signature in the
|
||
|
* STREAMINFO block or when a seek is attempted.
|
||
|
*
|
||
|
* Make sure to read the detailed description of the
|
||
|
* \link oggflac_stream_decoder stream decoder module \endlink since the
|
||
|
* seekable stream decoder inherits much of its behavior.
|
||
|
*
|
||
|
* \note
|
||
|
* The "set" functions may only be called when the decoder is in the
|
||
|
* state OggFLAC__SEEKABLE_STREAM_DECODER_UNINITIALIZED, i.e. after
|
||
|
* OggFLAC__seekable_stream_decoder_new() or
|
||
|
* OggFLAC__seekable_stream_decoder_finish(), but before
|
||
|
* OggFLAC__seekable_stream_decoder_init(). If this is the case they will
|
||
|
* return \c true, otherwise \c false.
|
||
|
*
|
||
|
* \note
|
||
|
* OggFLAC__stream_decoder_finish() resets all settings to the constructor
|
||
|
* defaults, including the callbacks.
|
||
|
*
|
||
|
* \{
|
||
|
*/
|
||
|
|
||
|
|
||
|
/** State values for a OggFLAC__SeekableStreamDecoder
|
||
|
*
|
||
|
* The decoder's state can be obtained by calling OggFLAC__seekable_stream_decoder_get_state().
|
||
|
*/
|
||
|
typedef enum {
|
||
|
|
||
|
OggFLAC__SEEKABLE_STREAM_DECODER_OK = 0,
|
||
|
/**< The decoder is in the normal OK state. */
|
||
|
|
||
|
OggFLAC__SEEKABLE_STREAM_DECODER_SEEKING,
|
||
|
/**< The decoder is in the process of seeking. */
|
||
|
|
||
|
OggFLAC__SEEKABLE_STREAM_DECODER_END_OF_STREAM,
|
||
|
/**< The decoder has reached the end of the stream. */
|
||
|
|
||
|
OggFLAC__SEEKABLE_STREAM_DECODER_MEMORY_ALLOCATION_ERROR,
|
||
|
/**< An error occurred allocating memory. */
|
||
|
|
||
|
OggFLAC__SEEKABLE_STREAM_DECODER_STREAM_DECODER_ERROR,
|
||
|
/**< An error occurred in the underlying stream decoder. */
|
||
|
|
||
|
OggFLAC__SEEKABLE_STREAM_DECODER_READ_ERROR,
|
||
|
/**< The read callback returned an error. */
|
||
|
|
||
|
OggFLAC__SEEKABLE_STREAM_DECODER_SEEK_ERROR,
|
||
|
/**< An error occurred while seeking or the seek or tell
|
||
|
* callback returned an error.
|
||
|
*/
|
||
|
|
||
|
OggFLAC__SEEKABLE_STREAM_DECODER_ALREADY_INITIALIZED,
|
||
|
/**< OggFLAC__seekable_stream_decoder_init() was called when the
|
||
|
* decoder was already initialized, usually because
|
||
|
* OggFLAC__seekable_stream_decoder_finish() was not called.
|
||
|
*/
|
||
|
|
||
|
OggFLAC__SEEKABLE_STREAM_DECODER_INVALID_CALLBACK,
|
||
|
/**< OggFLAC__seekable_stream_decoder_init() was called without all
|
||
|
* callbacks being set.
|
||
|
*/
|
||
|
|
||
|
OggFLAC__SEEKABLE_STREAM_DECODER_UNINITIALIZED
|
||
|
/**< The decoder is in the uninitialized state. */
|
||
|
|
||
|
} OggFLAC__SeekableStreamDecoderState;
|
||
|
|
||
|
/** Maps a OggFLAC__SeekableStreamDecoderState to a C string.
|
||
|
*
|
||
|
* Using a OggFLAC__SeekableStreamDecoderState as the index to this array
|
||
|
* will give the string equivalent. The contents should not be modified.
|
||
|
*/
|
||
|
extern const char * const OggFLAC__SeekableStreamDecoderStateString[];
|
||
|
|
||
|
|
||
|
/** Return values for the OggFLAC__SeekableStreamDecoder read callback.
|
||
|
*/
|
||
|
typedef enum {
|
||
|
|
||
|
OggFLAC__SEEKABLE_STREAM_DECODER_READ_STATUS_OK,
|
||
|
/**< The read was OK and decoding can continue. */
|
||
|
|
||
|
OggFLAC__SEEKABLE_STREAM_DECODER_READ_STATUS_ERROR
|
||
|
/**< An unrecoverable error occurred. The decoder will return from the process call. */
|
||
|
|
||
|
} OggFLAC__SeekableStreamDecoderReadStatus;
|
||
|
|
||
|
/** Maps a OggFLAC__SeekableStreamDecoderReadStatus to a C string.
|
||
|
*
|
||
|
* Using a OggFLAC__SeekableStreamDecoderReadStatus as the index to this array
|
||
|
* will give the string equivalent. The contents should not be modified.
|
||
|
*/
|
||
|
extern const char * const OggFLAC__SeekableStreamDecoderReadStatusString[];
|
||
|
|
||
|
|
||
|
/** Return values for the OggFLAC__SeekableStreamDecoder seek callback.
|
||
|
*/
|
||
|
typedef enum {
|
||
|
|
||
|
OggFLAC__SEEKABLE_STREAM_DECODER_SEEK_STATUS_OK,
|
||
|
/**< The seek was OK and decoding can continue. */
|
||
|
|
||
|
OggFLAC__SEEKABLE_STREAM_DECODER_SEEK_STATUS_ERROR
|
||
|
/**< An unrecoverable error occurred. The decoder will return from the process call. */
|
||
|
|
||
|
} OggFLAC__SeekableStreamDecoderSeekStatus;
|
||
|
|
||
|
/** Maps a OggFLAC__SeekableStreamDecoderSeekStatus to a C string.
|
||
|
*
|
||
|
* Using a OggFLAC__SeekableStreamDecoderSeekStatus as the index to this array
|
||
|
* will give the string equivalent. The contents should not be modified.
|
||
|
*/
|
||
|
extern const char * const OggFLAC__SeekableStreamDecoderSeekStatusString[];
|
||
|
|
||
|
|
||
|
/** Return values for the OggFLAC__SeekableStreamDecoder tell callback.
|
||
|
*/
|
||
|
typedef enum {
|
||
|
|
||
|
OggFLAC__SEEKABLE_STREAM_DECODER_TELL_STATUS_OK,
|
||
|
/**< The tell was OK and decoding can continue. */
|
||
|
|
||
|
OggFLAC__SEEKABLE_STREAM_DECODER_TELL_STATUS_ERROR
|
||
|
/**< An unrecoverable error occurred. The decoder will return from the process call. */
|
||
|
|
||
|
} OggFLAC__SeekableStreamDecoderTellStatus;
|
||
|
|
||
|
/** Maps a OggFLAC__SeekableStreamDecoderTellStatus to a C string.
|
||
|
*
|
||
|
* Using a OggFLAC__SeekableStreamDecoderTellStatus as the index to this array
|
||
|
* will give the string equivalent. The contents should not be modified.
|
||
|
*/
|
||
|
extern const char * const OggFLAC__SeekableStreamDecoderTellStatusString[];
|
||
|
|
||
|
|
||
|
/** Return values for the OggFLAC__SeekableStreamDecoder length callback.
|
||
|
*/
|
||
|
typedef enum {
|
||
|
|
||
|
OggFLAC__SEEKABLE_STREAM_DECODER_LENGTH_STATUS_OK,
|
||
|
/**< The length call was OK and decoding can continue. */
|
||
|
|
||
|
OggFLAC__SEEKABLE_STREAM_DECODER_LENGTH_STATUS_ERROR
|
||
|
/**< An unrecoverable error occurred. The decoder will return from the process call. */
|
||
|
|
||
|
} OggFLAC__SeekableStreamDecoderLengthStatus;
|
||
|
|
||
|
/** Maps a OggFLAC__SeekableStreamDecoderLengthStatus to a C string.
|
||
|
*
|
||
|
* Using a OggFLAC__SeekableStreamDecoderLengthStatus as the index to this array
|
||
|
* will give the string equivalent. The contents should not be modified.
|
||
|
*/
|
||
|
extern const char * const OggFLAC__SeekableStreamDecoderLengthStatusString[];
|
||
|
|
||
|
|
||
|
/***********************************************************************
|
||
|
*
|
||
|
* class OggFLAC__SeekableStreamDecoder : public OggFLAC__StreamDecoder
|
||
|
*
|
||
|
***********************************************************************/
|
||
|
|
||
|
struct OggFLAC__SeekableStreamDecoderProtected;
|
||
|
struct OggFLAC__SeekableStreamDecoderPrivate;
|
||
|
/** The opaque structure definition for the seekable stream decoder type.
|
||
|
* See the
|
||
|
* \link oggflac_seekable_stream_decoder seekable stream decoder module \endlink
|
||
|
* for a detailed description.
|
||
|
*/
|
||
|
typedef struct {
|
||
|
struct OggFLAC__SeekableStreamDecoderProtected *protected_; /* avoid the C++ keyword 'protected' */
|
||
|
struct OggFLAC__SeekableStreamDecoderPrivate *private_; /* avoid the C++ keyword 'private' */
|
||
|
} OggFLAC__SeekableStreamDecoder;
|
||
|
|
||
|
/*@@@ document */
|
||
|
typedef OggFLAC__SeekableStreamDecoderReadStatus (*OggFLAC__SeekableStreamDecoderReadCallback)(const OggFLAC__SeekableStreamDecoder *decoder, FLAC__byte buffer[], unsigned *bytes, void *client_data);
|
||
|
typedef OggFLAC__SeekableStreamDecoderSeekStatus (*OggFLAC__SeekableStreamDecoderSeekCallback)(const OggFLAC__SeekableStreamDecoder *decoder, FLAC__uint64 absolute_byte_offset, void *client_data);
|
||
|
typedef OggFLAC__SeekableStreamDecoderTellStatus (*OggFLAC__SeekableStreamDecoderTellCallback)(const OggFLAC__SeekableStreamDecoder *decoder, FLAC__uint64 *absolute_byte_offset, void *client_data);
|
||
|
typedef OggFLAC__SeekableStreamDecoderLengthStatus (*OggFLAC__SeekableStreamDecoderLengthCallback)(const OggFLAC__SeekableStreamDecoder *decoder, FLAC__uint64 *stream_length, void *client_data);
|
||
|
typedef FLAC__bool (*OggFLAC__SeekableStreamDecoderEofCallback)(const OggFLAC__SeekableStreamDecoder *decoder, void *client_data);
|
||
|
typedef OggFLAC__StreamDecoderWriteStatus (*OggFLAC__SeekableStreamDecoderWriteCallback)(const OggFLAC__SeekableStreamDecoder *decoder, const OggFLAC__Frame *frame, const FLAC__int32 * const buffer[], void *client_data);
|
||
|
typedef void (*OggFLAC__SeekableStreamDecoderMetadataCallback)(const OggFLAC__SeekableStreamDecoder *decoder, const OggFLAC__StreamMetadata *metadata, void *client_data);
|
||
|
typedef void (*OggFLAC__SeekableStreamDecoderErrorCallback)(const OggFLAC__SeekableStreamDecoder *decoder, OggFLAC__StreamDecoderErrorStatus status, void *client_data);
|
||
|
|
||
|
|
||
|
/***********************************************************************
|
||
|
*
|
||
|
* Class constructor/destructor
|
||
|
*
|
||
|
***********************************************************************/
|
||
|
|
||
|
/** Create a new seekable stream decoder instance. The instance is created
|
||
|
* with default settings; see the individual
|
||
|
* OggFLAC__seekable_stream_decoder_set_*() functions for each setting's
|
||
|
* default.
|
||
|
*
|
||
|
* \retval OggFLAC__SeekableStreamDecoder*
|
||
|
* \c NULL if there was an error allocating memory, else the new instance.
|
||
|
*/
|
||
|
OggFLAC__SeekableStreamDecoder *OggFLAC__seekable_stream_decoder_new();
|
||
|
|
||
|
/** Free a decoder instance. Deletes the object pointed to by \a decoder.
|
||
|
*
|
||
|
* \param decoder A pointer to an existing decoder.
|
||
|
* \assert
|
||
|
* \code decoder != NULL \endcode
|
||
|
*/
|
||
|
void OggFLAC__seekable_stream_decoder_delete(OggFLAC__SeekableStreamDecoder *decoder);
|
||
|
|
||
|
|
||
|
/***********************************************************************
|
||
|
*
|
||
|
* Public class method prototypes
|
||
|
*
|
||
|
***********************************************************************/
|
||
|
|
||
|
/** Set the "MD5 signature checking" flag. If \c true, the decoder will
|
||
|
* compute the MD5 signature of the unencoded audio data while decoding
|
||
|
* and compare it to the signature from the STREAMINFO block, if it
|
||
|
* exists, during OggFLAC__seekable_stream_decoder_finish().
|
||
|
*
|
||
|
* MD5 signature checking will be turned off (until the next
|
||
|
* OggFLAC__seekable_stream_decoder_reset()) if there is no signature in
|
||
|
* the STREAMINFO block or when a seek is attempted.
|
||
|
*
|
||
|
* \default \c false
|
||
|
* \param decoder A decoder instance to set.
|
||
|
* \param value Flag value (see above).
|
||
|
* \assert
|
||
|
* \code decoder != NULL \endcode
|
||
|
* \retval FLAC__bool
|
||
|
* \c false if the decoder is already initialized, else \c true.
|
||
|
*/
|
||
|
FLAC__bool OggFLAC__seekable_stream_decoder_set_md5_checking(OggFLAC__SeekableStreamDecoder *decoder, FLAC__bool value);
|
||
|
|
||
|
/** Set the read callback.
|
||
|
* This is inherited from OggFLAC__StreamDecoder; see
|
||
|
* OggFLAC__stream_decoder_set_read_callback().
|
||
|
*
|
||
|
* \note
|
||
|
* The callback is mandatory and must be set before initialization.
|
||
|
*
|
||
|
* \default \c NULL
|
||
|
* \param decoder A decoder instance to set.
|
||
|
* \param value See above.
|
||
|
* \assert
|
||
|
* \code decoder != NULL \endcode
|
||
|
* \code value != NULL \endcode
|
||
|
* \retval FLAC__bool
|
||
|
* \c false if the decoder is already initialized, else \c true.
|
||
|
*/
|
||
|
FLAC__bool OggFLAC__seekable_stream_decoder_set_read_callback(OggFLAC__SeekableStreamDecoder *decoder, OggFLAC__SeekableStreamDecoderReadCallback value);
|
||
|
|
||
|
/** Set the seek callback.
|
||
|
* The supplied function will be called when the decoder needs to seek
|
||
|
* the input stream. The decoder will pass the absolute byte offset
|
||
|
* to seek to, 0 meaning the beginning of the stream.
|
||
|
*
|
||
|
* \note
|
||
|
* The callback is mandatory and must be set before initialization.
|
||
|
*
|
||
|
* \default \c NULL
|
||
|
* \param decoder An decoder instance to set.
|
||
|
* \param value See above.
|
||
|
* \assert
|
||
|
* \code decoder != NULL \endcode
|
||
|
* \code value != NULL \endcode
|
||
|
* \retval FLAC__bool
|
||
|
* \c false if the decoder is already initialized, else \c true.
|
||
|
*/
|
||
|
FLAC__bool OggFLAC__seekable_stream_decoder_set_seek_callback(OggFLAC__SeekableStreamDecoder *decoder, OggFLAC__SeekableStreamDecoderSeekCallback value);
|
||
|
|
||
|
/** Set the tell callback.
|
||
|
* The supplied function will be called when the decoder wants to know
|
||
|
* the current position of the stream. The callback should return the
|
||
|
* byte offset from the beginning of the stream.
|
||
|
*
|
||
|
* \note
|
||
|
* The callback is mandatory and must be set before initialization.
|
||
|
*
|
||
|
* \default \c NULL
|
||
|
* \param decoder An decoder instance to set.
|
||
|
* \param value See above.
|
||
|
* \assert
|
||
|
* \code decoder != NULL \endcode
|
||
|
* \code value != NULL \endcode
|
||
|
* \retval FLAC__bool
|
||
|
* \c false if the decoder is already initialized, else \c true.
|
||
|
*/
|
||
|
FLAC__bool OggFLAC__seekable_stream_decoder_set_tell_callback(OggFLAC__SeekableStreamDecoder *decoder, OggFLAC__SeekableStreamDecoderTellCallback value);
|
||
|
|
||
|
/** Set the length callback.
|
||
|
* The supplied function will be called when the decoder wants to know
|
||
|
* the total length of the stream in bytes.
|
||
|
*
|
||
|
* \note
|
||
|
* The callback is mandatory and must be set before initialization.
|
||
|
*
|
||
|
* \default \c NULL
|
||
|
* \param decoder An decoder instance to set.
|
||
|
* \param value See above.
|
||
|
* \assert
|
||
|
* \code decoder != NULL \endcode
|
||
|
* \code value != NULL \endcode
|
||
|
* \retval FLAC__bool
|
||
|
* \c false if the decoder is already initialized, else \c true.
|
||
|
*/
|
||
|
FLAC__bool OggFLAC__seekable_stream_decoder_set_length_callback(OggFLAC__SeekableStreamDecoder *decoder, OggFLAC__SeekableStreamDecoderLengthCallback value);
|
||
|
|
||
|
/** Set the eof callback.
|
||
|
* The supplied function will be called when the decoder needs to know
|
||
|
* if the end of the stream has been reached.
|
||
|
*
|
||
|
* \note
|
||
|
* The callback is mandatory and must be set before initialization.
|
||
|
*
|
||
|
* \default \c NULL
|
||
|
* \param decoder An decoder instance to set.
|
||
|
* \param value See above.
|
||
|
* \assert
|
||
|
* \code decoder != NULL \endcode
|
||
|
* \code value != NULL \endcode
|
||
|
* \retval FLAC__bool
|
||
|
* \c false if the decoder is already initialized, else \c true.
|
||
|
*/
|
||
|
FLAC__bool OggFLAC__seekable_stream_decoder_set_eof_callback(OggFLAC__SeekableStreamDecoder *decoder, OggFLAC__SeekableStreamDecoderEofCallback value);
|
||
|
|
||
|
/** Set the write callback.
|
||
|
* This is inherited from OggFLAC__StreamDecoder; see
|
||
|
* OggFLAC__stream_decoder_set_write_callback().
|
||
|
*
|
||
|
* \note
|
||
|
* The callback is mandatory and must be set before initialization.
|
||
|
*
|
||
|
* \default \c NULL
|
||
|
* \param decoder A decoder instance to set.
|
||
|
* \param value See above.
|
||
|
* \assert
|
||
|
* \code decoder != NULL \endcode
|
||
|
* \code value != NULL \endcode
|
||
|
* \retval FLAC__bool
|
||
|
* \c false if the decoder is already initialized, else \c true.
|
||
|
*/
|
||
|
FLAC__bool OggFLAC__seekable_stream_decoder_set_write_callback(OggFLAC__SeekableStreamDecoder *decoder, OggFLAC__SeekableStreamDecoderWriteCallback value);
|
||
|
|
||
|
/** Set the metadata callback.
|
||
|
* This is inherited from OggFLAC__StreamDecoder; see
|
||
|
* OggFLAC__stream_decoder_set_metadata_callback().
|
||
|
*
|
||
|
* \note
|
||
|
* The callback is mandatory and must be set before initialization.
|
||
|
*
|
||
|
* \default \c NULL
|
||
|
* \param decoder A decoder instance to set.
|
||
|
* \param value See above.
|
||
|
* \assert
|
||
|
* \code decoder != NULL \endcode
|
||
|
* \code value != NULL \endcode
|
||
|
* \retval FLAC__bool
|
||
|
* \c false if the decoder is already initialized, else \c true.
|
||
|
*/
|
||
|
FLAC__bool OggFLAC__seekable_stream_decoder_set_metadata_callback(OggFLAC__SeekableStreamDecoder *decoder, OggFLAC__SeekableStreamDecoderMetadataCallback value);
|
||
|
|
||
|
/** Set the error callback.
|
||
|
* This is inherited from OggFLAC__StreamDecoder; see
|
||
|
* OggFLAC__stream_decoder_set_error_callback().
|
||
|
*
|
||
|
* \note
|
||
|
* The callback is mandatory and must be set before initialization.
|
||
|
*
|
||
|
* \default \c NULL
|
||
|
* \param decoder A decoder instance to set.
|
||
|
* \param value See above.
|
||
|
* \assert
|
||
|
* \code decoder != NULL \endcode
|
||
|
* \code value != NULL \endcode
|
||
|
* \retval FLAC__bool
|
||
|
* \c false if the decoder is already initialized, else \c true.
|
||
|
*/
|
||
|
FLAC__bool OggFLAC__seekable_stream_decoder_set_error_callback(OggFLAC__SeekableStreamDecoder *decoder, OggFLAC__SeekableStreamDecoderErrorCallback value);
|
||
|
|
||
|
/** Set the client data to be passed back to callbacks.
|
||
|
* This value will be supplied to callbacks in their \a client_data
|
||
|
* argument.
|
||
|
*
|
||
|
* \default \c NULL
|
||
|
* \param decoder An decoder instance to set.
|
||
|
* \param value See above.
|
||
|
* \assert
|
||
|
* \code decoder != NULL \endcode
|
||
|
* \retval FLAC__bool
|
||
|
* \c false if the decoder is already initialized, else \c true.
|
||
|
*/
|
||
|
FLAC__bool OggFLAC__seekable_stream_decoder_set_client_data(OggFLAC__SeekableStreamDecoder *decoder, void *value);
|
||
|
|
||
|
/** This is inherited from OggFLAC__StreamDecoder; see
|
||
|
* OggFLAC__stream_decoder_set_metadata_respond().
|
||
|
*
|
||
|
* \default By default, only the \c STREAMINFO block is returned via the
|
||
|
* metadata callback.
|
||
|
* \param decoder A decoder instance to set.
|
||
|
* \param type See above.
|
||
|
* \assert
|
||
|
* \code decoder != NULL \endcode
|
||
|
* \a type is valid
|
||
|
* \retval FLAC__bool
|
||
|
* \c false if the decoder is already initialized, else \c true.
|
||
|
*/
|
||
|
FLAC__bool OggFLAC__seekable_stream_decoder_set_metadata_respond(OggFLAC__SeekableStreamDecoder *decoder, OggFLAC__MetadataType type);
|
||
|
|
||
|
/** This is inherited from OggFLAC__StreamDecoder; see
|
||
|
* OggFLAC__stream_decoder_set_metadata_respond_application().
|
||
|
*
|
||
|
* \default By default, only the \c STREAMINFO block is returned via the
|
||
|
* metadata callback.
|
||
|
* \param decoder A decoder instance to set.
|
||
|
* \param id See above.
|
||
|
* \assert
|
||
|
* \code decoder != NULL \endcode
|
||
|
* \code id != NULL \endcode
|
||
|
* \retval FLAC__bool
|
||
|
* \c false if the decoder is already initialized, else \c true.
|
||
|
*/
|
||
|
FLAC__bool OggFLAC__seekable_stream_decoder_set_metadata_respond_application(OggFLAC__SeekableStreamDecoder *decoder, const FLAC__byte id[4]);
|
||
|
|
||
|
/** This is inherited from OggFLAC__StreamDecoder; see
|
||
|
* OggFLAC__stream_decoder_set_metadata_respond_all().
|
||
|
*
|
||
|
* \default By default, only the \c STREAMINFO block is returned via the
|
||
|
* metadata callback.
|
||
|
* \param decoder A decoder instance to set.
|
||
|
* \assert
|
||
|
* \code decoder != NULL \endcode
|
||
|
* \retval FLAC__bool
|
||
|
* \c false if the decoder is already initialized, else \c true.
|
||
|
*/
|
||
|
FLAC__bool OggFLAC__seekable_stream_decoder_set_metadata_respond_all(OggFLAC__SeekableStreamDecoder *decoder);
|
||
|
|
||
|
/** This is inherited from OggFLAC__StreamDecoder; see
|
||
|
* OggFLAC__stream_decoder_set_metadata_ignore().
|
||
|
*
|
||
|
* \default By default, only the \c STREAMINFO block is returned via the
|
||
|
* metadata callback.
|
||
|
* \param decoder A decoder instance to set.
|
||
|
* \param type See above.
|
||
|
* \assert
|
||
|
* \code decoder != NULL \endcode
|
||
|
* \a type is valid
|
||
|
* \retval FLAC__bool
|
||
|
* \c false if the decoder is already initialized, else \c true.
|
||
|
*/
|
||
|
FLAC__bool OggFLAC__seekable_stream_decoder_set_metadata_ignore(OggFLAC__SeekableStreamDecoder *decoder, OggFLAC__MetadataType type);
|
||
|
|
||
|
/** This is inherited from OggFLAC__StreamDecoder; see
|
||
|
* OggFLAC__stream_decoder_set_metadata_ignore_application().
|
||
|
*
|
||
|
* \default By default, only the \c STREAMINFO block is returned via the
|
||
|
* metadata callback.
|
||
|
* \param decoder A decoder instance to set.
|
||
|
* \param id See above.
|
||
|
* \assert
|
||
|
* \code decoder != NULL \endcode
|
||
|
* \code id != NULL \endcode
|
||
|
* \retval FLAC__bool
|
||
|
* \c false if the decoder is already initialized, else \c true.
|
||
|
*/
|
||
|
FLAC__bool OggFLAC__seekable_stream_decoder_set_metadata_ignore_application(OggFLAC__SeekableStreamDecoder *decoder, const FLAC__byte id[4]);
|
||
|
|
||
|
/** This is inherited from OggFLAC__StreamDecoder; see
|
||
|
* OggFLAC__stream_decoder_set_metadata_ignore_all().
|
||
|
*
|
||
|
* \default By default, only the \c STREAMINFO block is returned via the
|
||
|
* metadata callback.
|
||
|
* \param decoder A decoder instance to set.
|
||
|
* \assert
|
||
|
* \code decoder != NULL \endcode
|
||
|
* \retval FLAC__bool
|
||
|
* \c false if the decoder is already initialized, else \c true.
|
||
|
*/
|
||
|
FLAC__bool OggFLAC__seekable_stream_decoder_set_metadata_ignore_all(OggFLAC__SeekableStreamDecoder *decoder);
|
||
|
|
||
|
/** Get the current decoder state.
|
||
|
*
|
||
|
* \param decoder A decoder instance to query.
|
||
|
* \assert
|
||
|
* \code decoder != NULL \endcode
|
||
|
* \retval OggFLAC__SeekableStreamDecoderState
|
||
|
* The current decoder state.
|
||
|
*/
|
||
|
OggFLAC__SeekableStreamDecoderState OggFLAC__seekable_stream_decoder_get_state(const OggFLAC__SeekableStreamDecoder *decoder);
|
||
|
|
||
|
/** Get the state of the underlying stream decoder.
|
||
|
* Useful when the seekable stream decoder state is
|
||
|
* \c OggFLAC__SEEKABLE_STREAM_DECODER_STREAM_DECODER_ERROR.
|
||
|
*
|
||
|
* \param decoder An decoder instance to query.
|
||
|
* \assert
|
||
|
* \code decoder != NULL \endcode
|
||
|
* \retval OggFLAC__StreamDecoderState
|
||
|
* The stream decoder state.
|
||
|
*/
|
||
|
OggFLAC__StreamDecoderState OggFLAC__seekable_stream_decoder_get_stream_decoder_state(const OggFLAC__SeekableStreamDecoder *decoder);
|
||
|
|
||
|
/** Get the "MD5 signature checking" flag.
|
||
|
* This is the value of the setting, not whether or not the decoder is
|
||
|
* currently checking the MD5 (remember, it can be turned off automatically
|
||
|
* by a seek). When the decoder is reset the flag will be restored to the
|
||
|
* value returned by this function.
|
||
|
*
|
||
|
* \param decoder A decoder instance to query.
|
||
|
* \assert
|
||
|
* \code decoder != NULL \endcode
|
||
|
* \retval FLAC__bool
|
||
|
* See above.
|
||
|
*/
|
||
|
FLAC__bool OggFLAC__seekable_stream_decoder_get_md5_checking(const OggFLAC__SeekableStreamDecoder *decoder);
|
||
|
|
||
|
/** This is inherited from OggFLAC__StreamDecoder; see
|
||
|
* OggFLAC__stream_decoder_get_channels().
|
||
|
*
|
||
|
* \param decoder A decoder instance to query.
|
||
|
* \assert
|
||
|
* \code decoder != NULL \endcode
|
||
|
* \retval unsigned
|
||
|
* See above.
|
||
|
*/
|
||
|
unsigned OggFLAC__seekable_stream_decoder_get_channels(const OggFLAC__SeekableStreamDecoder *decoder);
|
||
|
|
||
|
/** This is inherited from OggFLAC__StreamDecoder; see
|
||
|
* OggFLAC__stream_decoder_get_channel_assignment().
|
||
|
*
|
||
|
* \param decoder A decoder instance to query.
|
||
|
* \assert
|
||
|
* \code decoder != NULL \endcode
|
||
|
* \retval OggFLAC__ChannelAssignment
|
||
|
* See above.
|
||
|
*/
|
||
|
OggFLAC__ChannelAssignment OggFLAC__seekable_stream_decoder_get_channel_assignment(const OggFLAC__SeekableStreamDecoder *decoder);
|
||
|
|
||
|
/** This is inherited from OggFLAC__StreamDecoder; see
|
||
|
* OggFLAC__stream_decoder_get_bits_per_sample().
|
||
|
*
|
||
|
* \param decoder A decoder instance to query.
|
||
|
* \assert
|
||
|
* \code decoder != NULL \endcode
|
||
|
* \retval unsigned
|
||
|
* See above.
|
||
|
*/
|
||
|
unsigned OggFLAC__seekable_stream_decoder_get_bits_per_sample(const OggFLAC__SeekableStreamDecoder *decoder);
|
||
|
|
||
|
/** This is inherited from OggFLAC__StreamDecoder; see
|
||
|
* OggFLAC__stream_decoder_get_sample_rate().
|
||
|
*
|
||
|
* \param decoder A decoder instance to query.
|
||
|
* \assert
|
||
|
* \code decoder != NULL \endcode
|
||
|
* \retval unsigned
|
||
|
* See above.
|
||
|
*/
|
||
|
unsigned OggFLAC__seekable_stream_decoder_get_sample_rate(const OggFLAC__SeekableStreamDecoder *decoder);
|
||
|
|
||
|
/** This is inherited from OggFLAC__StreamDecoder; see
|
||
|
* OggFLAC__stream_decoder_get_blocksize().
|
||
|
*
|
||
|
* \param decoder A decoder instance to query.
|
||
|
* \assert
|
||
|
* \code decoder != NULL \endcode
|
||
|
* \retval unsigned
|
||
|
* See above.
|
||
|
*/
|
||
|
unsigned OggFLAC__seekable_stream_decoder_get_blocksize(const OggFLAC__SeekableStreamDecoder *decoder);
|
||
|
|
||
|
/** Initialize the decoder instance.
|
||
|
* Should be called after OggFLAC__seekable_stream_decoder_new() and
|
||
|
* OggFLAC__seekable_stream_decoder_set_*() but before any of the
|
||
|
* OggFLAC__seekable_stream_decoder_process_*() functions. Will set and return
|
||
|
* the decoder state, which will be OggFLAC__SEEKABLE_STREAM_DECODER_OK
|
||
|
* if initialization succeeded.
|
||
|
*
|
||
|
* \param decoder An uninitialized decoder instance.
|
||
|
* \assert
|
||
|
* \code decoder != NULL \endcode
|
||
|
* \retval OggFLAC__SeekableStreamDecoderState
|
||
|
* \c OggFLAC__SEEKABLE_STREAM_DECODER_OK if initialization was
|
||
|
* successful; see OggFLAC__SeekableStreamDecoderState for the meanings
|
||
|
* of other return values.
|
||
|
*/
|
||
|
OggFLAC__SeekableStreamDecoderState OggFLAC__seekable_stream_decoder_init(OggFLAC__SeekableStreamDecoder *decoder);
|
||
|
|
||
|
/** Finish the decoding process.
|
||
|
* Flushes the decoding buffer, releases resources, resets the decoder
|
||
|
* settings to their defaults, and returns the decoder state to
|
||
|
* OggFLAC__SEEKABLE_STREAM_DECODER_UNINITIALIZED.
|
||
|
*
|
||
|
* In the event of a prematurely-terminated decode, it is not strictly
|
||
|
* necessary to call this immediately before
|
||
|
* OggFLAC__seekable_stream_decoder_delete() but it is good practice to match
|
||
|
* every OggFLAC__seekable_stream_decoder_init() with a
|
||
|
* OggFLAC__seekable_stream_decoder_finish().
|
||
|
*
|
||
|
* \param decoder An uninitialized decoder instance.
|
||
|
* \assert
|
||
|
* \code decoder != NULL \endcode
|
||
|
* \retval FLAC__bool
|
||
|
* \c false if MD5 checking is on AND a STREAMINFO block was available
|
||
|
* AND the MD5 signature in the STREAMINFO block was non-zero AND the
|
||
|
* signature does not match the one computed by the decoder; else
|
||
|
* \c true.
|
||
|
*/
|
||
|
FLAC__bool OggFLAC__seekable_stream_decoder_finish(OggFLAC__SeekableStreamDecoder *decoder);
|
||
|
|
||
|
/** Flush the stream input.
|
||
|
* The decoder's input buffer will be cleared and the state set to
|
||
|
* \c OggFLAC__SEEKABLE_STREAM_DECODER_OK. This will also turn off MD5
|
||
|
* checking.
|
||
|
*
|
||
|
* \param decoder A decoder instance.
|
||
|
* \assert
|
||
|
* \code decoder != NULL \endcode
|
||
|
* \retval FLAC__bool
|
||
|
* \c true if successful, else \c false if a memory allocation
|
||
|
* or stream decoder error occurs.
|
||
|
*/
|
||
|
FLAC__bool OggFLAC__seekable_stream_decoder_flush(OggFLAC__SeekableStreamDecoder *decoder);
|
||
|
|
||
|
/** Reset the decoding process.
|
||
|
* The decoder's input buffer will be cleared and the state set to
|
||
|
* \c OggFLAC__SEEKABLE_STREAM_DECODER_OK. This is similar to
|
||
|
* OggFLAC__seekable_stream_decoder_finish() except that the settings are
|
||
|
* preserved; there is no need to call OggFLAC__seekable_stream_decoder_init()
|
||
|
* before decoding again. MD5 checking will be restored to its original
|
||
|
* setting.
|
||
|
*
|
||
|
* \param decoder A decoder instance.
|
||
|
* \assert
|
||
|
* \code decoder != NULL \endcode
|
||
|
* \retval FLAC__bool
|
||
|
* \c true if successful, else \c false if a memory allocation
|
||
|
* or stream decoder error occurs.
|
||
|
*/
|
||
|
FLAC__bool OggFLAC__seekable_stream_decoder_reset(OggFLAC__SeekableStreamDecoder *decoder);
|
||
|
|
||
|
/** This is inherited from OggFLAC__StreamDecoder; see
|
||
|
* OggFLAC__stream_decoder_process_single().
|
||
|
*
|
||
|
* \param decoder A decoder instance.
|
||
|
* \assert
|
||
|
* \code decoder != NULL \endcode
|
||
|
* \retval FLAC__bool
|
||
|
* See above.
|
||
|
*/
|
||
|
FLAC__bool OggFLAC__seekable_stream_decoder_process_single(OggFLAC__SeekableStreamDecoder *decoder);
|
||
|
|
||
|
/** This is inherited from OggFLAC__StreamDecoder; see
|
||
|
* OggFLAC__stream_decoder_process_until_end_of_metadata().
|
||
|
*
|
||
|
* \param decoder A decoder instance.
|
||
|
* \assert
|
||
|
* \code decoder != NULL \endcode
|
||
|
* \retval FLAC__bool
|
||
|
* See above.
|
||
|
*/
|
||
|
FLAC__bool OggFLAC__seekable_stream_decoder_process_until_end_of_metadata(OggFLAC__SeekableStreamDecoder *decoder);
|
||
|
|
||
|
/** This is inherited from OggFLAC__StreamDecoder; see
|
||
|
* OggFLAC__stream_decoder_process_until_end_of_stream().
|
||
|
*
|
||
|
* \param decoder A decoder instance.
|
||
|
* \assert
|
||
|
* \code decoder != NULL \endcode
|
||
|
* \retval FLAC__bool
|
||
|
* See above.
|
||
|
*/
|
||
|
FLAC__bool OggFLAC__seekable_stream_decoder_process_until_end_of_stream(OggFLAC__SeekableStreamDecoder *decoder);
|
||
|
|
||
|
/** Flush the input and seek to an absolute sample.
|
||
|
* Decoding will resume at the given sample. Note that because of
|
||
|
* this, the next write callback may contain a partial block.
|
||
|
*
|
||
|
* \param decoder A decoder instance.
|
||
|
* \param sample The target sample number to seek to.
|
||
|
* \assert
|
||
|
* \code decoder != NULL \endcode
|
||
|
* \retval FLAC__bool
|
||
|
* \c true if successful, else \c false.
|
||
|
*/
|
||
|
FLAC__bool OggFLAC__seekable_stream_decoder_seek_absolute(OggFLAC__SeekableStreamDecoder *decoder, FLAC__uint64 sample);
|
||
|
|
||
|
/* \} */
|
||
|
|
||
|
#ifdef __cplusplus
|
||
|
}
|
||
|
#endif
|
||
|
|
||
|
#endif
|