1 /* libFLAC - Free Lossless Audio Codec 2 * Copyright (C) 2002-2009 Josh Coalson 3 * Copyright (C) 2011-2016 Xiph.Org Foundation 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions 7 * are met: 8 * 9 * - Redistributions of source code must retain the above copyright 10 * notice, this list of conditions and the following disclaimer. 11 * 12 * - Redistributions in binary form must reproduce the above copyright 13 * notice, this list of conditions and the following disclaimer in the 14 * documentation and/or other materials provided with the distribution. 15 * 16 * - Neither the name of the Xiph.org Foundation nor the names of its 17 * contributors may be used to endorse or promote products derived from 18 * this software without specific prior written permission. 19 * 20 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 21 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 22 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR 23 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR 24 * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, 25 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, 26 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR 27 * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF 28 * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING 29 * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS 30 * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 31 */ 32 33 #ifndef FLAC__PRIVATE__OGG_DECODER_ASPECT_H 34 #define FLAC__PRIVATE__OGG_DECODER_ASPECT_H 35 36 #include <ogg/ogg.h> 37 38 #include "FLAC/ordinals.h" 39 #include "FLAC/stream_decoder.h" /* for FLAC__StreamDecoderReadStatus */ 40 41 typedef struct FLAC__OggDecoderAspect { 42 /* these are storage for values that can be set through the API */ 43 FLAC__bool use_first_serial_number; 44 long serial_number; 45 46 /* these are for internal state related to Ogg decoding */ 47 ogg_stream_state stream_state; 48 ogg_sync_state sync_state; 49 unsigned version_major, version_minor; 50 FLAC__bool need_serial_number; 51 FLAC__bool end_of_stream; 52 FLAC__bool have_working_page; /* only if true will the following vars be valid */ 53 ogg_page working_page; 54 FLAC__bool have_working_packet; /* only if true will the following vars be valid */ 55 ogg_packet working_packet; /* as we work through the packet we will move working_packet.packet forward and working_packet.bytes down */ 56 } FLAC__OggDecoderAspect; 57 58 void FLAC__ogg_decoder_aspect_set_serial_number(FLAC__OggDecoderAspect *aspect, long value); 59 void FLAC__ogg_decoder_aspect_set_defaults(FLAC__OggDecoderAspect *aspect); 60 FLAC__bool FLAC__ogg_decoder_aspect_init(FLAC__OggDecoderAspect *aspect); 61 void FLAC__ogg_decoder_aspect_finish(FLAC__OggDecoderAspect *aspect); 62 void FLAC__ogg_decoder_aspect_flush(FLAC__OggDecoderAspect *aspect); 63 void FLAC__ogg_decoder_aspect_reset(FLAC__OggDecoderAspect *aspect); 64 65 typedef enum { 66 FLAC__OGG_DECODER_ASPECT_READ_STATUS_OK = 0, 67 FLAC__OGG_DECODER_ASPECT_READ_STATUS_END_OF_STREAM, 68 FLAC__OGG_DECODER_ASPECT_READ_STATUS_LOST_SYNC, 69 FLAC__OGG_DECODER_ASPECT_READ_STATUS_NOT_FLAC, 70 FLAC__OGG_DECODER_ASPECT_READ_STATUS_UNSUPPORTED_MAPPING_VERSION, 71 FLAC__OGG_DECODER_ASPECT_READ_STATUS_ABORT, 72 FLAC__OGG_DECODER_ASPECT_READ_STATUS_ERROR, 73 FLAC__OGG_DECODER_ASPECT_READ_STATUS_MEMORY_ALLOCATION_ERROR 74 } FLAC__OggDecoderAspectReadStatus; 75 76 typedef FLAC__OggDecoderAspectReadStatus (*FLAC__OggDecoderAspectReadCallbackProxy)(const void *decoder, FLAC__byte buffer[], size_t *bytes, void *client_data); 77 78 FLAC__OggDecoderAspectReadStatus FLAC__ogg_decoder_aspect_read_callback_wrapper(FLAC__OggDecoderAspect *aspect, FLAC__byte buffer[], size_t *bytes, FLAC__OggDecoderAspectReadCallbackProxy read_callback, const FLAC__StreamDecoder *decoder, void *client_data); 79 80 #endif 81
