| /* libOggFLAC - Free Lossless Audio Codec + Ogg library |
| * Copyright (C) 2002,2003,2004 Josh Coalson |
| * |
| * Redistribution and use in source and binary forms, with or without |
| * modification, are permitted provided that the following conditions |
| * are met: |
| * |
| * - Redistributions of source code must retain the above copyright |
| * notice, this list of conditions and the following disclaimer. |
| * |
| * - Redistributions in binary form must reproduce the above copyright |
| * notice, this list of conditions and the following disclaimer in the |
| * documentation and/or other materials provided with the distribution. |
| * |
| * - Neither the name of the Xiph.org Foundation nor the names of its |
| * contributors may be used to endorse or promote products derived from |
| * this software without specific prior written permission. |
| * |
| * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS |
| * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT |
| * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR |
| * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR |
| * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, |
| * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, |
| * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR |
| * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF |
| * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING |
| * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS |
| * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
| */ |
| |
| #include <stdlib.h> /* for calloc() */ |
| #include "FLAC/assert.h" |
| #include "protected/seekable_stream_decoder.h" |
| |
| /*********************************************************************** |
| * |
| * Private class method prototypes |
| * |
| ***********************************************************************/ |
| |
| static void set_defaults_(OggFLAC__SeekableStreamDecoder *decoder); |
| static FLAC__SeekableStreamDecoderReadStatus read_callback_(const FLAC__SeekableStreamDecoder *decoder, FLAC__byte buffer[], unsigned *bytes, void *client_data); |
| static FLAC__SeekableStreamDecoderSeekStatus seek_callback_(const FLAC__SeekableStreamDecoder *decoder, FLAC__uint64 absolute_byte_offset, void *client_data); |
| static FLAC__SeekableStreamDecoderTellStatus tell_callback_(const FLAC__SeekableStreamDecoder *decoder, FLAC__uint64 *absolute_byte_offset, void *client_data); |
| static FLAC__SeekableStreamDecoderLengthStatus length_callback_(const FLAC__SeekableStreamDecoder *decoder, FLAC__uint64 *stream_length, void *client_data); |
| static FLAC__bool eof_callback_(const FLAC__SeekableStreamDecoder *decoder, void *client_data); |
| static FLAC__StreamDecoderWriteStatus write_callback_(const FLAC__SeekableStreamDecoder *decoder, const FLAC__Frame *frame, const FLAC__int32 * const buffer[], void *client_data); |
| static void metadata_callback_(const FLAC__SeekableStreamDecoder *decoder, const FLAC__StreamMetadata *metadata, void *client_data); |
| static void error_callback_(const FLAC__SeekableStreamDecoder *decoder, FLAC__StreamDecoderErrorStatus status, void *client_data); |
| static OggFLAC__OggDecoderAspectReadStatus read_callback_proxy_(const void *void_decoder, FLAC__byte buffer[], unsigned *bytes, void *client_data); |
| |
| |
| /*********************************************************************** |
| * |
| * Private class data |
| * |
| ***********************************************************************/ |
| |
| typedef struct OggFLAC__SeekableStreamDecoderPrivate { |
| OggFLAC__SeekableStreamDecoderReadCallback read_callback; |
| OggFLAC__SeekableStreamDecoderSeekCallback seek_callback; |
| OggFLAC__SeekableStreamDecoderTellCallback tell_callback; |
| OggFLAC__SeekableStreamDecoderLengthCallback length_callback; |
| OggFLAC__SeekableStreamDecoderEofCallback eof_callback; |
| OggFLAC__SeekableStreamDecoderWriteCallback write_callback; |
| OggFLAC__SeekableStreamDecoderMetadataCallback metadata_callback; |
| OggFLAC__SeekableStreamDecoderErrorCallback error_callback; |
| void *client_data; |
| FLAC__SeekableStreamDecoder *FLAC_seekable_stream_decoder; |
| } OggFLAC__SeekableStreamDecoderPrivate; |
| |
| /*********************************************************************** |
| * |
| * Public static class data |
| * |
| ***********************************************************************/ |
| |
| OggFLAC_API const char * const OggFLAC__SeekableStreamDecoderStateString[] = { |
| "OggFLAC__SEEKABLE_STREAM_DECODER_OK", |
| "OggFLAC__SEEKABLE_STREAM_DECODER_END_OF_STREAM", |
| "OggFLAC__SEEKABLE_STREAM_DECODER_OGG_ERROR", |
| "OggFLAC__SEEKABLE_STREAM_DECODER_FLAC_SEEKABLE_STREAM_DECODER_ERROR", |
| "OggFLAC__SEEKABLE_STREAM_DECODER_READ_ERROR", |
| "OggFLAC__SEEKABLE_STREAM_DECODER_MEMORY_ALLOCATION_ERROR", |
| "OggFLAC__SEEKABLE_STREAM_DECODER_ALREADY_INITIALIZED", |
| "OggFLAC__SEEKABLE_STREAM_DECODER_INVALID_CALLBACK", |
| "OggFLAC__SEEKABLE_STREAM_DECODER_UNINITIALIZED" |
| }; |
| |
| |
| /*********************************************************************** |
| * |
| * Class constructor/destructor |
| * |
| ***********************************************************************/ |
| OggFLAC_API OggFLAC__SeekableStreamDecoder *OggFLAC__seekable_stream_decoder_new() |
| { |
| OggFLAC__SeekableStreamDecoder *decoder; |
| |
| decoder = (OggFLAC__SeekableStreamDecoder*)calloc(1, sizeof(OggFLAC__SeekableStreamDecoder)); |
| if(decoder == 0) { |
| return 0; |
| } |
| |
| decoder->protected_ = (OggFLAC__SeekableStreamDecoderProtected*)calloc(1, sizeof(OggFLAC__SeekableStreamDecoderProtected)); |
| if(decoder->protected_ == 0) { |
| free(decoder); |
| return 0; |
| } |
| |
| decoder->private_ = (OggFLAC__SeekableStreamDecoderPrivate*)calloc(1, sizeof(OggFLAC__SeekableStreamDecoderPrivate)); |
| if(decoder->private_ == 0) { |
| free(decoder->protected_); |
| free(decoder); |
| return 0; |
| } |
| |
| decoder->private_->FLAC_seekable_stream_decoder = FLAC__seekable_stream_decoder_new(); |
| if(0 == decoder->private_->FLAC_seekable_stream_decoder) { |
| free(decoder->private_); |
| free(decoder->protected_); |
| free(decoder); |
| return 0; |
| } |
| |
| set_defaults_(decoder); |
| |
| decoder->protected_->state = OggFLAC__SEEKABLE_STREAM_DECODER_UNINITIALIZED; |
| |
| return decoder; |
| } |
| |
| OggFLAC_API void OggFLAC__seekable_stream_decoder_delete(OggFLAC__SeekableStreamDecoder *decoder) |
| { |
| FLAC__ASSERT(0 != decoder); |
| FLAC__ASSERT(0 != decoder->protected_); |
| FLAC__ASSERT(0 != decoder->private_); |
| FLAC__ASSERT(0 != decoder->private_->FLAC_seekable_stream_decoder); |
| |
| OggFLAC__seekable_stream_decoder_finish(decoder); |
| |
| FLAC__seekable_stream_decoder_delete(decoder->private_->FLAC_seekable_stream_decoder); |
| |
| free(decoder->private_); |
| free(decoder->protected_); |
| free(decoder); |
| } |
| |
| /*********************************************************************** |
| * |
| * Public class methods |
| * |
| ***********************************************************************/ |
| |
| OggFLAC_API OggFLAC__SeekableStreamDecoderState OggFLAC__seekable_stream_decoder_init(OggFLAC__SeekableStreamDecoder *decoder) |
| { |
| FLAC__ASSERT(0 != decoder); |
| |
| if(decoder->protected_->state != OggFLAC__SEEKABLE_STREAM_DECODER_UNINITIALIZED) |
| return decoder->protected_->state = OggFLAC__SEEKABLE_STREAM_DECODER_ALREADY_INITIALIZED; |
| |
| if(0 == decoder->private_->read_callback || 0 == decoder->private_->seek_callback || 0 == decoder->private_->tell_callback || 0 == decoder->private_->length_callback || 0 == decoder->private_->eof_callback || 0 == decoder->private_->write_callback || 0 == decoder->private_->metadata_callback || 0 == decoder->private_->error_callback) |
| return decoder->protected_->state = OggFLAC__SEEKABLE_STREAM_DECODER_INVALID_CALLBACK; |
| |
| if(!OggFLAC__ogg_decoder_aspect_init(&decoder->protected_->ogg_decoder_aspect)) |
| return decoder->protected_->state = OggFLAC__SEEKABLE_STREAM_DECODER_OGG_ERROR; |
| |
| FLAC__seekable_stream_decoder_set_read_callback(decoder->private_->FLAC_seekable_stream_decoder, read_callback_); |
| FLAC__seekable_stream_decoder_set_seek_callback(decoder->private_->FLAC_seekable_stream_decoder, seek_callback_); |
| FLAC__seekable_stream_decoder_set_tell_callback(decoder->private_->FLAC_seekable_stream_decoder, tell_callback_); |
| FLAC__seekable_stream_decoder_set_length_callback(decoder->private_->FLAC_seekable_stream_decoder, length_callback_); |
| FLAC__seekable_stream_decoder_set_eof_callback(decoder->private_->FLAC_seekable_stream_decoder, eof_callback_); |
| FLAC__seekable_stream_decoder_set_write_callback(decoder->private_->FLAC_seekable_stream_decoder, write_callback_); |
| FLAC__seekable_stream_decoder_set_metadata_callback(decoder->private_->FLAC_seekable_stream_decoder, metadata_callback_); |
| FLAC__seekable_stream_decoder_set_error_callback(decoder->private_->FLAC_seekable_stream_decoder, error_callback_); |
| FLAC__seekable_stream_decoder_set_client_data(decoder->private_->FLAC_seekable_stream_decoder, decoder); |
| |
| if(FLAC__seekable_stream_decoder_init(decoder->private_->FLAC_seekable_stream_decoder) != FLAC__SEEKABLE_STREAM_DECODER_OK) |
| return decoder->protected_->state = OggFLAC__SEEKABLE_STREAM_DECODER_FLAC_SEEKABLE_STREAM_DECODER_ERROR; |
| |
| return decoder->protected_->state = OggFLAC__SEEKABLE_STREAM_DECODER_OK; |
| } |
| |
| OggFLAC_API FLAC__bool OggFLAC__seekable_stream_decoder_finish(OggFLAC__SeekableStreamDecoder *decoder) |
| { |
| FLAC__bool ok; |
| |
| FLAC__ASSERT(0 != decoder); |
| FLAC__ASSERT(0 != decoder->private_); |
| FLAC__ASSERT(0 != decoder->protected_); |
| |
| if(decoder->protected_->state == OggFLAC__SEEKABLE_STREAM_DECODER_UNINITIALIZED) |
| return true; |
| |
| FLAC__ASSERT(0 != decoder->private_->FLAC_seekable_stream_decoder); |
| |
| ok = FLAC__seekable_stream_decoder_finish(decoder->private_->FLAC_seekable_stream_decoder); |
| |
| OggFLAC__ogg_decoder_aspect_finish(&decoder->protected_->ogg_decoder_aspect); |
| |
| set_defaults_(decoder); |
| |
| decoder->protected_->state = OggFLAC__SEEKABLE_STREAM_DECODER_UNINITIALIZED; |
| |
| return ok; |
| } |
| |
| OggFLAC_API FLAC__bool OggFLAC__seekable_stream_decoder_set_md5_checking(OggFLAC__SeekableStreamDecoder *decoder, FLAC__bool value) |
| { |
| FLAC__ASSERT(0 != decoder); |
| FLAC__ASSERT(0 != decoder->private_); |
| FLAC__ASSERT(0 != decoder->protected_); |
| if(decoder->protected_->state != OggFLAC__SEEKABLE_STREAM_DECODER_UNINITIALIZED) |
| return false; |
| return FLAC__seekable_stream_decoder_set_md5_checking(decoder->private_->FLAC_seekable_stream_decoder, value); |
| } |
| |
| OggFLAC_API FLAC__bool OggFLAC__seekable_stream_decoder_set_read_callback(OggFLAC__SeekableStreamDecoder *decoder, OggFLAC__SeekableStreamDecoderReadCallback value) |
| { |
| FLAC__ASSERT(0 != decoder); |
| FLAC__ASSERT(0 != decoder->private_); |
| FLAC__ASSERT(0 != decoder->protected_); |
| if(decoder->protected_->state != OggFLAC__SEEKABLE_STREAM_DECODER_UNINITIALIZED) |
| return false; |
| decoder->private_->read_callback = value; |
| return true; |
| } |
| |
| OggFLAC_API FLAC__bool OggFLAC__seekable_stream_decoder_set_seek_callback(OggFLAC__SeekableStreamDecoder *decoder, OggFLAC__SeekableStreamDecoderSeekCallback value) |
| { |
| FLAC__ASSERT(0 != decoder); |
| FLAC__ASSERT(0 != decoder->private_); |
| FLAC__ASSERT(0 != decoder->protected_); |
| if(decoder->protected_->state != OggFLAC__SEEKABLE_STREAM_DECODER_UNINITIALIZED) |
| return false; |
| decoder->private_->seek_callback = value; |
| return true; |
| } |
| |
| OggFLAC_API FLAC__bool OggFLAC__seekable_stream_decoder_set_tell_callback(OggFLAC__SeekableStreamDecoder *decoder, OggFLAC__SeekableStreamDecoderTellCallback value) |
| { |
| FLAC__ASSERT(0 != decoder); |
| FLAC__ASSERT(0 != decoder->private_); |
| FLAC__ASSERT(0 != decoder->protected_); |
| if(decoder->protected_->state != OggFLAC__SEEKABLE_STREAM_DECODER_UNINITIALIZED) |
| return false; |
| decoder->private_->tell_callback = value; |
| return true; |
| } |
| |
| OggFLAC_API FLAC__bool OggFLAC__seekable_stream_decoder_set_length_callback(OggFLAC__SeekableStreamDecoder *decoder, OggFLAC__SeekableStreamDecoderLengthCallback value) |
| { |
| FLAC__ASSERT(0 != decoder); |
| FLAC__ASSERT(0 != decoder->private_); |
| FLAC__ASSERT(0 != decoder->protected_); |
| if(decoder->protected_->state != OggFLAC__SEEKABLE_STREAM_DECODER_UNINITIALIZED) |
| return false; |
| decoder->private_->length_callback = value; |
| return true; |
| } |
| |
| OggFLAC_API FLAC__bool OggFLAC__seekable_stream_decoder_set_eof_callback(OggFLAC__SeekableStreamDecoder *decoder, OggFLAC__SeekableStreamDecoderEofCallback value) |
| { |
| FLAC__ASSERT(0 != decoder); |
| FLAC__ASSERT(0 != decoder->private_); |
| FLAC__ASSERT(0 != decoder->protected_); |
| if(decoder->protected_->state != OggFLAC__SEEKABLE_STREAM_DECODER_UNINITIALIZED) |
| return false; |
| decoder->private_->eof_callback = value; |
| return true; |
| } |
| |
| OggFLAC_API FLAC__bool OggFLAC__seekable_stream_decoder_set_write_callback(OggFLAC__SeekableStreamDecoder *decoder, OggFLAC__SeekableStreamDecoderWriteCallback value) |
| { |
| FLAC__ASSERT(0 != decoder); |
| FLAC__ASSERT(0 != decoder->private_); |
| FLAC__ASSERT(0 != decoder->protected_); |
| if(decoder->protected_->state != OggFLAC__SEEKABLE_STREAM_DECODER_UNINITIALIZED) |
| return false; |
| decoder->private_->write_callback = value; |
| return true; |
| } |
| |
| OggFLAC_API FLAC__bool OggFLAC__seekable_stream_decoder_set_metadata_callback(OggFLAC__SeekableStreamDecoder *decoder, OggFLAC__SeekableStreamDecoderMetadataCallback value) |
| { |
| FLAC__ASSERT(0 != decoder); |
| FLAC__ASSERT(0 != decoder->private_); |
| FLAC__ASSERT(0 != decoder->protected_); |
| if(decoder->protected_->state != OggFLAC__SEEKABLE_STREAM_DECODER_UNINITIALIZED) |
| return false; |
| decoder->private_->metadata_callback = value; |
| return true; |
| } |
| |
| OggFLAC_API FLAC__bool OggFLAC__seekable_stream_decoder_set_error_callback(OggFLAC__SeekableStreamDecoder *decoder, OggFLAC__SeekableStreamDecoderErrorCallback value) |
| { |
| FLAC__ASSERT(0 != decoder); |
| FLAC__ASSERT(0 != decoder->private_); |
| FLAC__ASSERT(0 != decoder->protected_); |
| if(decoder->protected_->state != OggFLAC__SEEKABLE_STREAM_DECODER_UNINITIALIZED) |
| return false; |
| decoder->private_->error_callback = value; |
| return true; |
| } |
| |
| OggFLAC_API FLAC__bool OggFLAC__seekable_stream_decoder_set_client_data(OggFLAC__SeekableStreamDecoder *decoder, void *value) |
| { |
| FLAC__ASSERT(0 != decoder); |
| FLAC__ASSERT(0 != decoder->private_); |
| FLAC__ASSERT(0 != decoder->protected_); |
| if(decoder->protected_->state != OggFLAC__SEEKABLE_STREAM_DECODER_UNINITIALIZED) |
| return false; |
| decoder->private_->client_data = value; |
| return true; |
| } |
| |
| OggFLAC_API FLAC__bool OggFLAC__seekable_stream_decoder_set_serial_number(OggFLAC__SeekableStreamDecoder *decoder, long value) |
| { |
| FLAC__ASSERT(0 != decoder); |
| FLAC__ASSERT(0 != decoder->private_); |
| FLAC__ASSERT(0 != decoder->protected_); |
| if(decoder->protected_->state != OggFLAC__SEEKABLE_STREAM_DECODER_UNINITIALIZED) |
| return false; |
| OggFLAC__ogg_decoder_aspect_set_serial_number(&decoder->protected_->ogg_decoder_aspect, value); |
| return true; |
| } |
| |
| OggFLAC_API FLAC__bool OggFLAC__seekable_stream_decoder_set_metadata_respond(OggFLAC__SeekableStreamDecoder *decoder, FLAC__MetadataType type) |
| { |
| FLAC__ASSERT(0 != decoder); |
| FLAC__ASSERT(0 != decoder->private_); |
| FLAC__ASSERT(0 != decoder->protected_); |
| if(decoder->protected_->state != OggFLAC__SEEKABLE_STREAM_DECODER_UNINITIALIZED) |
| return false; |
| return FLAC__seekable_stream_decoder_set_metadata_respond(decoder->private_->FLAC_seekable_stream_decoder, type); |
| } |
| |
| OggFLAC_API FLAC__bool OggFLAC__seekable_stream_decoder_set_metadata_respond_application(OggFLAC__SeekableStreamDecoder *decoder, const FLAC__byte id[4]) |
| { |
| FLAC__ASSERT(0 != decoder); |
| FLAC__ASSERT(0 != decoder->private_); |
| FLAC__ASSERT(0 != decoder->protected_); |
| if(decoder->protected_->state != OggFLAC__SEEKABLE_STREAM_DECODER_UNINITIALIZED) |
| return false; |
| return FLAC__seekable_stream_decoder_set_metadata_respond_application(decoder->private_->FLAC_seekable_stream_decoder, id); |
| } |
| |
| OggFLAC_API FLAC__bool OggFLAC__seekable_stream_decoder_set_metadata_respond_all(OggFLAC__SeekableStreamDecoder *decoder) |
| { |
| FLAC__ASSERT(0 != decoder); |
| FLAC__ASSERT(0 != decoder->private_); |
| FLAC__ASSERT(0 != decoder->protected_); |
| if(decoder->protected_->state != OggFLAC__SEEKABLE_STREAM_DECODER_UNINITIALIZED) |
| return false; |
| return FLAC__seekable_stream_decoder_set_metadata_respond_all(decoder->private_->FLAC_seekable_stream_decoder); |
| } |
| |
| OggFLAC_API FLAC__bool OggFLAC__seekable_stream_decoder_set_metadata_ignore(OggFLAC__SeekableStreamDecoder *decoder, FLAC__MetadataType type) |
| { |
| FLAC__ASSERT(0 != decoder); |
| FLAC__ASSERT(0 != decoder->private_); |
| FLAC__ASSERT(0 != decoder->protected_); |
| if(decoder->protected_->state != OggFLAC__SEEKABLE_STREAM_DECODER_UNINITIALIZED) |
| return false; |
| return FLAC__seekable_stream_decoder_set_metadata_ignore(decoder->private_->FLAC_seekable_stream_decoder, type); |
| } |
| |
| OggFLAC_API FLAC__bool OggFLAC__seekable_stream_decoder_set_metadata_ignore_application(OggFLAC__SeekableStreamDecoder *decoder, const FLAC__byte id[4]) |
| { |
| FLAC__ASSERT(0 != decoder); |
| FLAC__ASSERT(0 != decoder->private_); |
| FLAC__ASSERT(0 != decoder->protected_); |
| if(decoder->protected_->state != OggFLAC__SEEKABLE_STREAM_DECODER_UNINITIALIZED) |
| return false; |
| return FLAC__seekable_stream_decoder_set_metadata_ignore_application(decoder->private_->FLAC_seekable_stream_decoder, id); |
| } |
| |
| OggFLAC_API FLAC__bool OggFLAC__seekable_stream_decoder_set_metadata_ignore_all(OggFLAC__SeekableStreamDecoder *decoder) |
| { |
| FLAC__ASSERT(0 != decoder); |
| FLAC__ASSERT(0 != decoder->private_); |
| FLAC__ASSERT(0 != decoder->protected_); |
| if(decoder->protected_->state != OggFLAC__SEEKABLE_STREAM_DECODER_UNINITIALIZED) |
| return false; |
| return FLAC__seekable_stream_decoder_set_metadata_ignore_all(decoder->private_->FLAC_seekable_stream_decoder); |
| } |
| |
| OggFLAC_API OggFLAC__SeekableStreamDecoderState OggFLAC__seekable_stream_decoder_get_state(const OggFLAC__SeekableStreamDecoder *decoder) |
| { |
| FLAC__ASSERT(0 != decoder); |
| FLAC__ASSERT(0 != decoder->protected_); |
| return decoder->protected_->state; |
| } |
| |
| OggFLAC_API FLAC__SeekableStreamDecoderState OggFLAC__seekable_stream_decoder_get_FLAC_seekable_stream_decoder_state(const OggFLAC__SeekableStreamDecoder *decoder) |
| { |
| FLAC__ASSERT(0 != decoder); |
| FLAC__ASSERT(0 != decoder->private_); |
| return FLAC__seekable_stream_decoder_get_state(decoder->private_->FLAC_seekable_stream_decoder); |
| } |
| |
| OggFLAC_API FLAC__StreamDecoderState OggFLAC__seekable_stream_decoder_get_FLAC_stream_decoder_state(const OggFLAC__SeekableStreamDecoder *decoder) |
| { |
| FLAC__ASSERT(0 != decoder); |
| FLAC__ASSERT(0 != decoder->private_); |
| return FLAC__seekable_stream_decoder_get_stream_decoder_state(decoder->private_->FLAC_seekable_stream_decoder); |
| } |
| |
| OggFLAC_API const char *OggFLAC__seekable_stream_decoder_get_resolved_state_string(const OggFLAC__SeekableStreamDecoder *decoder) |
| { |
| if(decoder->protected_->state != OggFLAC__SEEKABLE_STREAM_DECODER_FLAC_SEEKABLE_STREAM_DECODER_ERROR) |
| return OggFLAC__SeekableStreamDecoderStateString[decoder->protected_->state]; |
| else |
| return FLAC__seekable_stream_decoder_get_resolved_state_string(decoder->private_->FLAC_seekable_stream_decoder); |
| } |
| |
| OggFLAC_API FLAC__bool OggFLAC__seekable_stream_decoder_get_md5_checking(const OggFLAC__SeekableStreamDecoder *decoder) |
| { |
| FLAC__ASSERT(0 != decoder); |
| FLAC__ASSERT(0 != decoder->private_); |
| return FLAC__seekable_stream_decoder_get_md5_checking(decoder->private_->FLAC_seekable_stream_decoder); |
| } |
| |
| OggFLAC_API unsigned OggFLAC__seekable_stream_decoder_get_channels(const OggFLAC__SeekableStreamDecoder *decoder) |
| { |
| FLAC__ASSERT(0 != decoder); |
| FLAC__ASSERT(0 != decoder->private_); |
| return FLAC__seekable_stream_decoder_get_channels(decoder->private_->FLAC_seekable_stream_decoder); |
| } |
| |
| OggFLAC_API FLAC__ChannelAssignment OggFLAC__seekable_stream_decoder_get_channel_assignment(const OggFLAC__SeekableStreamDecoder *decoder) |
| { |
| FLAC__ASSERT(0 != decoder); |
| FLAC__ASSERT(0 != decoder->private_); |
| return FLAC__seekable_stream_decoder_get_channel_assignment(decoder->private_->FLAC_seekable_stream_decoder); |
| } |
| |
| OggFLAC_API unsigned OggFLAC__seekable_stream_decoder_get_bits_per_sample(const OggFLAC__SeekableStreamDecoder *decoder) |
| { |
| FLAC__ASSERT(0 != decoder); |
| FLAC__ASSERT(0 != decoder->private_); |
| return FLAC__seekable_stream_decoder_get_bits_per_sample(decoder->private_->FLAC_seekable_stream_decoder); |
| } |
| |
| OggFLAC_API unsigned OggFLAC__seekable_stream_decoder_get_sample_rate(const OggFLAC__SeekableStreamDecoder *decoder) |
| { |
| FLAC__ASSERT(0 != decoder); |
| FLAC__ASSERT(0 != decoder->private_); |
| return FLAC__seekable_stream_decoder_get_sample_rate(decoder->private_->FLAC_seekable_stream_decoder); |
| } |
| |
| OggFLAC_API unsigned OggFLAC__seekable_stream_decoder_get_blocksize(const OggFLAC__SeekableStreamDecoder *decoder) |
| { |
| FLAC__ASSERT(0 != decoder); |
| FLAC__ASSERT(0 != decoder->private_); |
| return FLAC__seekable_stream_decoder_get_blocksize(decoder->private_->FLAC_seekable_stream_decoder); |
| } |
| |
| OggFLAC_API FLAC__bool OggFLAC__seekable_stream_decoder_get_decode_position(const OggFLAC__SeekableStreamDecoder *decoder, FLAC__uint64 *position) |
| { |
| FLAC__ASSERT(0 != decoder); |
| FLAC__ASSERT(0 != decoder->private_); |
| return FLAC__seekable_stream_decoder_get_decode_position(decoder->private_->FLAC_seekable_stream_decoder, position); |
| } |
| |
| OggFLAC_API FLAC__bool OggFLAC__seekable_stream_decoder_flush(OggFLAC__SeekableStreamDecoder *decoder) |
| { |
| FLAC__ASSERT(0 != decoder); |
| FLAC__ASSERT(0 != decoder->private_); |
| FLAC__ASSERT(0 != decoder->protected_); |
| |
| OggFLAC__ogg_decoder_aspect_flush(&decoder->protected_->ogg_decoder_aspect); |
| |
| if(!FLAC__seekable_stream_decoder_flush(decoder->private_->FLAC_seekable_stream_decoder)) { |
| decoder->protected_->state = OggFLAC__SEEKABLE_STREAM_DECODER_FLAC_SEEKABLE_STREAM_DECODER_ERROR; |
| return false; |
| } |
| |
| decoder->protected_->state = OggFLAC__SEEKABLE_STREAM_DECODER_OK; |
| |
| return true; |
| } |
| |
| OggFLAC_API FLAC__bool OggFLAC__seekable_stream_decoder_reset(OggFLAC__SeekableStreamDecoder *decoder) |
| { |
| FLAC__ASSERT(0 != decoder); |
| FLAC__ASSERT(0 != decoder->private_); |
| FLAC__ASSERT(0 != decoder->protected_); |
| |
| if(!OggFLAC__seekable_stream_decoder_flush(decoder)) { |
| decoder->protected_->state = OggFLAC__SEEKABLE_STREAM_DECODER_MEMORY_ALLOCATION_ERROR; |
| return false; |
| } |
| |
| if(!FLAC__seekable_stream_decoder_reset(decoder->private_->FLAC_seekable_stream_decoder)) { |
| decoder->protected_->state = OggFLAC__SEEKABLE_STREAM_DECODER_FLAC_SEEKABLE_STREAM_DECODER_ERROR; |
| return false; |
| } |
| |
| decoder->protected_->state = OggFLAC__SEEKABLE_STREAM_DECODER_OK; |
| |
| return true; |
| } |
| |
| OggFLAC_API FLAC__bool OggFLAC__seekable_stream_decoder_process_single(OggFLAC__SeekableStreamDecoder *decoder) |
| { |
| FLAC__bool ret; |
| FLAC__ASSERT(0 != decoder); |
| |
| if(FLAC__seekable_stream_decoder_get_state(decoder->private_->FLAC_seekable_stream_decoder) == FLAC__SEEKABLE_STREAM_DECODER_END_OF_STREAM) |
| decoder->protected_->state = OggFLAC__SEEKABLE_STREAM_DECODER_END_OF_STREAM; |
| |
| if(decoder->protected_->state == OggFLAC__SEEKABLE_STREAM_DECODER_END_OF_STREAM) |
| return true; |
| |
| FLAC__ASSERT(decoder->protected_->state == OggFLAC__SEEKABLE_STREAM_DECODER_OK); |
| |
| ret = FLAC__seekable_stream_decoder_process_single(decoder->private_->FLAC_seekable_stream_decoder); |
| if(!ret) |
| decoder->protected_->state = OggFLAC__SEEKABLE_STREAM_DECODER_FLAC_SEEKABLE_STREAM_DECODER_ERROR; |
| |
| return ret; |
| } |
| |
| OggFLAC_API FLAC__bool OggFLAC__seekable_stream_decoder_process_until_end_of_metadata(OggFLAC__SeekableStreamDecoder *decoder) |
| { |
| FLAC__bool ret; |
| FLAC__ASSERT(0 != decoder); |
| |
| if(FLAC__seekable_stream_decoder_get_state(decoder->private_->FLAC_seekable_stream_decoder) == FLAC__SEEKABLE_STREAM_DECODER_END_OF_STREAM) |
| decoder->protected_->state = OggFLAC__SEEKABLE_STREAM_DECODER_END_OF_STREAM; |
| |
| if(decoder->protected_->state == OggFLAC__SEEKABLE_STREAM_DECODER_END_OF_STREAM) |
| return true; |
| |
| FLAC__ASSERT(decoder->protected_->state == OggFLAC__SEEKABLE_STREAM_DECODER_OK); |
| |
| ret = FLAC__seekable_stream_decoder_process_until_end_of_metadata(decoder->private_->FLAC_seekable_stream_decoder); |
| if(!ret) |
| decoder->protected_->state = OggFLAC__SEEKABLE_STREAM_DECODER_FLAC_SEEKABLE_STREAM_DECODER_ERROR; |
| |
| return ret; |
| } |
| |
| OggFLAC_API FLAC__bool OggFLAC__seekable_stream_decoder_process_until_end_of_stream(OggFLAC__SeekableStreamDecoder *decoder) |
| { |
| FLAC__bool ret; |
| FLAC__ASSERT(0 != decoder); |
| |
| if(FLAC__seekable_stream_decoder_get_state(decoder->private_->FLAC_seekable_stream_decoder) == FLAC__SEEKABLE_STREAM_DECODER_END_OF_STREAM) |
| decoder->protected_->state = OggFLAC__SEEKABLE_STREAM_DECODER_END_OF_STREAM; |
| |
| if(decoder->protected_->state == OggFLAC__SEEKABLE_STREAM_DECODER_END_OF_STREAM) |
| return true; |
| |
| FLAC__ASSERT(decoder->protected_->state == OggFLAC__SEEKABLE_STREAM_DECODER_OK); |
| |
| ret = FLAC__seekable_stream_decoder_process_until_end_of_stream(decoder->private_->FLAC_seekable_stream_decoder); |
| if(!ret) |
| decoder->protected_->state = OggFLAC__SEEKABLE_STREAM_DECODER_FLAC_SEEKABLE_STREAM_DECODER_ERROR; |
| |
| return ret; |
| } |
| |
| OggFLAC_API FLAC__bool OggFLAC__seekable_stream_decoder_seek_absolute(OggFLAC__SeekableStreamDecoder *decoder, FLAC__uint64 sample) |
| { |
| FLAC__ASSERT(0 != decoder); |
| FLAC__ASSERT(decoder->protected_->state == OggFLAC__SEEKABLE_STREAM_DECODER_OK || decoder->protected_->state == OggFLAC__SEEKABLE_STREAM_DECODER_END_OF_STREAM); |
| |
| if(!FLAC__seekable_stream_decoder_seek_absolute(decoder->private_->FLAC_seekable_stream_decoder, sample)) { |
| decoder->protected_->state = OggFLAC__SEEKABLE_STREAM_DECODER_FLAC_SEEKABLE_STREAM_DECODER_ERROR; |
| return false; |
| } |
| else { |
| decoder->protected_->state = OggFLAC__SEEKABLE_STREAM_DECODER_OK; |
| return true; |
| } |
| } |
| |
| |
| /*********************************************************************** |
| * |
| * Private class methods |
| * |
| ***********************************************************************/ |
| |
| void set_defaults_(OggFLAC__SeekableStreamDecoder *decoder) |
| { |
| decoder->private_->read_callback = 0; |
| decoder->private_->seek_callback = 0; |
| decoder->private_->tell_callback = 0; |
| decoder->private_->length_callback = 0; |
| decoder->private_->eof_callback = 0; |
| decoder->private_->write_callback = 0; |
| decoder->private_->metadata_callback = 0; |
| decoder->private_->error_callback = 0; |
| decoder->private_->client_data = 0; |
| OggFLAC__ogg_decoder_aspect_set_defaults(&decoder->protected_->ogg_decoder_aspect); |
| } |
| |
| FLAC__SeekableStreamDecoderReadStatus read_callback_(const FLAC__SeekableStreamDecoder *unused, FLAC__byte buffer[], unsigned *bytes, void *client_data) |
| { |
| OggFLAC__SeekableStreamDecoder *decoder = (OggFLAC__SeekableStreamDecoder*)client_data; |
| |
| (void)unused; |
| |
| switch(OggFLAC__ogg_decoder_aspect_read_callback_wrapper(&decoder->protected_->ogg_decoder_aspect, buffer, bytes, read_callback_proxy_, decoder, decoder->private_->client_data)) { |
| case OggFLAC__OGG_DECODER_ASPECT_READ_STATUS_OK: |
| return FLAC__SEEKABLE_STREAM_DECODER_READ_STATUS_OK; |
| /* we don't really have a way to handle lost sync via read |
| * callback so we'll let it pass and let the underlying |
| * FLAC decoder catch the error |
| */ |
| case OggFLAC__OGG_DECODER_ASPECT_READ_STATUS_LOST_SYNC: |
| return FLAC__SEEKABLE_STREAM_DECODER_READ_STATUS_OK; |
| case OggFLAC__OGG_DECODER_ASPECT_READ_STATUS_END_OF_STREAM: |
| return FLAC__SEEKABLE_STREAM_DECODER_READ_STATUS_OK; |
| case OggFLAC__OGG_DECODER_ASPECT_READ_STATUS_ABORT: |
| case OggFLAC__OGG_DECODER_ASPECT_READ_STATUS_ERROR: |
| decoder->protected_->state = OggFLAC__SEEKABLE_STREAM_DECODER_READ_ERROR; |
| return FLAC__SEEKABLE_STREAM_DECODER_READ_STATUS_ERROR; |
| case OggFLAC__OGG_DECODER_ASPECT_READ_STATUS_MEMORY_ALLOCATION_ERROR: |
| decoder->protected_->state = OggFLAC__SEEKABLE_STREAM_DECODER_MEMORY_ALLOCATION_ERROR; |
| return FLAC__SEEKABLE_STREAM_DECODER_READ_STATUS_ERROR; |
| default: |
| FLAC__ASSERT(0); |
| /* double protection */ |
| return FLAC__SEEKABLE_STREAM_DECODER_READ_STATUS_ERROR; |
| } |
| } |
| |
| FLAC__SeekableStreamDecoderSeekStatus seek_callback_(const FLAC__SeekableStreamDecoder *unused, FLAC__uint64 absolute_byte_offset, void *client_data) |
| { |
| OggFLAC__SeekableStreamDecoder *decoder = (OggFLAC__SeekableStreamDecoder*)client_data; |
| (void)unused; |
| |
| /* need to flush the Ogg state */ |
| OggFLAC__ogg_decoder_aspect_flush(&decoder->protected_->ogg_decoder_aspect); |
| |
| return decoder->private_->seek_callback(decoder, absolute_byte_offset, decoder->private_->client_data); |
| } |
| |
| FLAC__SeekableStreamDecoderTellStatus tell_callback_(const FLAC__SeekableStreamDecoder *unused, FLAC__uint64 *absolute_byte_offset, void *client_data) |
| { |
| OggFLAC__SeekableStreamDecoder *decoder = (OggFLAC__SeekableStreamDecoder*)client_data; |
| (void)unused; |
| return decoder->private_->tell_callback(decoder, absolute_byte_offset, decoder->private_->client_data); |
| } |
| |
| FLAC__SeekableStreamDecoderLengthStatus length_callback_(const FLAC__SeekableStreamDecoder *unused, FLAC__uint64 *stream_length, void *client_data) |
| { |
| OggFLAC__SeekableStreamDecoder *decoder = (OggFLAC__SeekableStreamDecoder*)client_data; |
| (void)unused; |
| return decoder->private_->length_callback(decoder, stream_length, decoder->private_->client_data); |
| } |
| |
| FLAC__bool eof_callback_(const FLAC__SeekableStreamDecoder *unused, void *client_data) |
| { |
| OggFLAC__SeekableStreamDecoder *decoder = (OggFLAC__SeekableStreamDecoder*)client_data; |
| (void)unused; |
| return decoder->private_->eof_callback(decoder, decoder->private_->client_data); |
| } |
| |
| FLAC__StreamDecoderWriteStatus write_callback_(const FLAC__SeekableStreamDecoder *unused, const FLAC__Frame *frame, const FLAC__int32 * const buffer[], void *client_data) |
| { |
| OggFLAC__SeekableStreamDecoder *decoder = (OggFLAC__SeekableStreamDecoder*)client_data; |
| (void)unused; |
| return decoder->private_->write_callback(decoder, frame, buffer, decoder->private_->client_data); |
| } |
| |
| void metadata_callback_(const FLAC__SeekableStreamDecoder *unused, const FLAC__StreamMetadata *metadata, void *client_data) |
| { |
| OggFLAC__SeekableStreamDecoder *decoder = (OggFLAC__SeekableStreamDecoder*)client_data; |
| (void)unused; |
| decoder->private_->metadata_callback(decoder, metadata, decoder->private_->client_data); |
| } |
| |
| void error_callback_(const FLAC__SeekableStreamDecoder *unused, FLAC__StreamDecoderErrorStatus status, void *client_data) |
| { |
| OggFLAC__SeekableStreamDecoder *decoder = (OggFLAC__SeekableStreamDecoder*)client_data; |
| (void)unused; |
| decoder->private_->error_callback(decoder, status, decoder->private_->client_data); |
| } |
| |
| OggFLAC__OggDecoderAspectReadStatus read_callback_proxy_(const void *void_decoder, FLAC__byte buffer[], unsigned *bytes, void *client_data) |
| { |
| OggFLAC__SeekableStreamDecoder *decoder = (OggFLAC__SeekableStreamDecoder*)void_decoder; |
| |
| switch(decoder->private_->read_callback(decoder, buffer, bytes, client_data)) { |
| case FLAC__SEEKABLE_STREAM_DECODER_READ_STATUS_OK: |
| if (*bytes == 0) |
| return OggFLAC__OGG_DECODER_ASPECT_READ_STATUS_END_OF_STREAM; |
| else |
| return OggFLAC__OGG_DECODER_ASPECT_READ_STATUS_OK; |
| case FLAC__SEEKABLE_STREAM_DECODER_READ_STATUS_ERROR: |
| return OggFLAC__OGG_DECODER_ASPECT_READ_STATUS_ABORT; |
| default: |
| /* double protection: */ |
| FLAC__ASSERT(0); |
| return OggFLAC__OGG_DECODER_ASPECT_READ_STATUS_ABORT; |
| } |
| } |