src/libFLAC++/seekable_stream_decoder.cpp

   1 /* libFLAC++ - Free Lossless Audio Codec library
   2  * Copyright (C) 2002,2003,2004,2005,2006  Josh Coalson
   3  *
   4  * Redistribution and use in source and binary forms, with or without
   5  * modification, are permitted provided that the following conditions
   6  * are met:
   7  *
   8  * - Redistributions of source code must retain the above copyright
   9  * notice, this list of conditions and the following disclaimer.
  10  *
  11  * - Redistributions in binary form must reproduce the above copyright
  12  * notice, this list of conditions and the following disclaimer in the
  13  * documentation and/or other materials provided with the distribution.
  14  *
  15  * - Neither the name of the Xiph.org Foundation nor the names of its
  16  * contributors may be used to endorse or promote products derived from
  17  * this software without specific prior written permission.
  18  *
  19  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
  20  * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
  21  * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
  22  * A PARTICULAR PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR
  23  * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
  24  * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
  25  * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
  26  * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
  27  * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
  28  * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
  29  * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  30  */
  31
  32 #include "FLAC++/decoder.h"
  33 #include "FLAC/assert.h"
  34
  35 #ifdef _MSC_VER
  36 // warning C4800: 'int' : forcing to bool 'true' or 'false' (performance warning)
  37 #pragma warning ( disable : 4800 )
  38 #endif
  39
  40 namespace FLAC {
  41         namespace Decoder {
  42
  43                 SeekableStream::SeekableStream():
  44                 decoder_(::FLAC__seekable_stream_decoder_new())
  45                 { }
  46
  47                 SeekableStream::~SeekableStream()
  48                 {
  49                         if(0 != decoder_) {
  50                                 (void) ::FLAC__seekable_stream_decoder_finish(decoder_);
  51                                 ::FLAC__seekable_stream_decoder_delete(decoder_);
  52                         }
  53                 }
  54
  55                 bool SeekableStream::is_valid() const
  56                 {
  57                         return 0 != decoder_;
  58                 }
  59
  60                 bool SeekableStream::set_md5_checking(bool value)
  61                 {
  62                         FLAC__ASSERT(is_valid());
  63                         return (bool)::FLAC__seekable_stream_decoder_set_md5_checking(decoder_, value);
  64                 }
  65
  66                 bool SeekableStream::set_metadata_respond(::FLAC__MetadataType type)
  67                 {
  68                         FLAC__ASSERT(is_valid());
  69                         return (bool)::FLAC__seekable_stream_decoder_set_metadata_respond(decoder_, type);
  70                 }
  71
  72                 bool SeekableStream::set_metadata_respond_application(const FLAC__byte id[4])
  73                 {
  74                         FLAC__ASSERT(is_valid());
  75                         return (bool)::FLAC__seekable_stream_decoder_set_metadata_respond_application(decoder_, id);
  76                 }
  77
  78                 bool SeekableStream::set_metadata_respond_all()
  79                 {
  80                         FLAC__ASSERT(is_valid());
  81                         return (bool)::FLAC__seekable_stream_decoder_set_metadata_respond_all(decoder_);
  82                 }
  83
  84                 bool SeekableStream::set_metadata_ignore(::FLAC__MetadataType type)
  85                 {
  86                         FLAC__ASSERT(is_valid());
  87                         return (bool)::FLAC__seekable_stream_decoder_set_metadata_ignore(decoder_, type);
  88                 }
  89
  90                 bool SeekableStream::set_metadata_ignore_application(const FLAC__byte id[4])
  91                 {
  92                         FLAC__ASSERT(is_valid());
  93                         return (bool)::FLAC__seekable_stream_decoder_set_metadata_ignore_application(decoder_, id);
  94                 }
  95
  96                 bool SeekableStream::set_metadata_ignore_all()
  97                 {
  98                         FLAC__ASSERT(is_valid());
  99                         return (bool)::FLAC__seekable_stream_decoder_set_metadata_ignore_all(decoder_);
 100                 }
 101
 102                 SeekableStream::State SeekableStream::get_state() const
 103                 {
 104                         FLAC__ASSERT(is_valid());
 105                         return State(::FLAC__seekable_stream_decoder_get_state(decoder_));
 106                 }
 107
 108                 Stream::State SeekableStream::get_stream_decoder_state() const
 109                 {
 110                         FLAC__ASSERT(is_valid());
 111                         return Stream::State(::FLAC__seekable_stream_decoder_get_stream_decoder_state(decoder_));
 112                 }
 113
 114                 bool SeekableStream::get_md5_checking() const
 115                 {
 116                         FLAC__ASSERT(is_valid());
 117                         return (bool)::FLAC__seekable_stream_decoder_get_md5_checking(decoder_);
 118                 }
 119
 120                 unsigned SeekableStream::get_channels() const
 121                 {
 122                         FLAC__ASSERT(is_valid());
 123                         return ::FLAC__seekable_stream_decoder_get_channels(decoder_);
 124                 }
 125
 126                 ::FLAC__ChannelAssignment SeekableStream::get_channel_assignment() const
 127                 {
 128                         FLAC__ASSERT(is_valid());
 129                         return ::FLAC__seekable_stream_decoder_get_channel_assignment(decoder_);
 130                 }
 131
 132                 unsigned SeekableStream::get_bits_per_sample() const
 133                 {
 134                         FLAC__ASSERT(is_valid());
 135                         return ::FLAC__seekable_stream_decoder_get_bits_per_sample(decoder_);
 136                 }
 137
 138                 unsigned SeekableStream::get_sample_rate() const
 139                 {
 140                         FLAC__ASSERT(is_valid());
 141                         return ::FLAC__seekable_stream_decoder_get_sample_rate(decoder_);
 142                 }
 143
 144                 unsigned SeekableStream::get_blocksize() const
 145                 {
 146                         FLAC__ASSERT(is_valid());
 147                         return ::FLAC__seekable_stream_decoder_get_blocksize(decoder_);
 148                 }
 149
 150                 SeekableStream::State SeekableStream::init()
 151                 {
 152                         FLAC__ASSERT(is_valid());
 153                         ::FLAC__seekable_stream_decoder_set_read_callback(decoder_, read_callback_);
 154                         ::FLAC__seekable_stream_decoder_set_seek_callback(decoder_, seek_callback_);
 155                         ::FLAC__seekable_stream_decoder_set_tell_callback(decoder_, tell_callback_);
 156                         ::FLAC__seekable_stream_decoder_set_length_callback(decoder_, length_callback_);
 157                         ::FLAC__seekable_stream_decoder_set_eof_callback(decoder_, eof_callback_);
 158                         ::FLAC__seekable_stream_decoder_set_write_callback(decoder_, write_callback_);
 159                         ::FLAC__seekable_stream_decoder_set_metadata_callback(decoder_, metadata_callback_);
 160                         ::FLAC__seekable_stream_decoder_set_error_callback(decoder_, error_callback_);
 161                         ::FLAC__seekable_stream_decoder_set_client_data(decoder_, (void*)this);
 162                         return State(::FLAC__seekable_stream_decoder_init(decoder_));
 163                 }
 164
 165                 bool SeekableStream::finish()
 166                 {
 167                         FLAC__ASSERT(is_valid());
 168                         return (bool)::FLAC__seekable_stream_decoder_finish(decoder_);
 169                 }
 170
 171                 bool SeekableStream::flush()
 172                 {
 173                         FLAC__ASSERT(is_valid());
 174                         return (bool)::FLAC__seekable_stream_decoder_flush(decoder_);
 175                 }
 176
 177                 bool SeekableStream::reset()
 178                 {
 179                         FLAC__ASSERT(is_valid());
 180                         return (bool)::FLAC__seekable_stream_decoder_reset(decoder_);
 181                 }
 182
 183                 bool SeekableStream::process_single()
 184                 {
 185                         FLAC__ASSERT(is_valid());
 186                         return (bool)::FLAC__seekable_stream_decoder_process_single(decoder_);
 187                 }
 188
 189                 bool SeekableStream::process_until_end_of_metadata()
 190                 {
 191                         FLAC__ASSERT(is_valid());
 192                         return (bool)::FLAC__seekable_stream_decoder_process_until_end_of_metadata(decoder_);
 193                 }
 194
 195                 bool SeekableStream::process_until_end_of_stream()
 196                 {
 197                         FLAC__ASSERT(is_valid());
 198                         return (bool)::FLAC__seekable_stream_decoder_process_until_end_of_stream(decoder_);
 199                 }
 200
 201                 bool SeekableStream::skip_single_frame()
 202                 {
 203                         FLAC__ASSERT(is_valid());
 204                         return (bool)::FLAC__seekable_stream_decoder_skip_single_frame(decoder_);
 205                 }
 206
 207                 bool SeekableStream::seek_absolute(FLAC__uint64 sample)
 208                 {
 209                         FLAC__ASSERT(is_valid());
 210                         return (bool)::FLAC__seekable_stream_decoder_seek_absolute(decoder_, sample);
 211                 }
 212
 213                 ::FLAC__SeekableStreamDecoderReadStatus SeekableStream::read_callback_(const ::FLAC__SeekableStreamDecoder *decoder, FLAC__byte buffer[], unsigned *bytes, void *client_data)
 214                 {
 215                         (void) decoder;
 216                         FLAC__ASSERT(0 != client_data);
 217                         SeekableStream *instance = reinterpret_cast<SeekableStream *>(client_data);
 218                         FLAC__ASSERT(0 != instance);
 219                         return instance->read_callback(buffer, bytes);
 220                 }
 221
 222                 ::FLAC__SeekableStreamDecoderSeekStatus SeekableStream::seek_callback_(const ::FLAC__SeekableStreamDecoder *decoder, FLAC__uint64 absolute_byte_offset, void *client_data)
 223                 {
 224                         (void) decoder;
 225                         FLAC__ASSERT(0 != client_data);
 226                         SeekableStream *instance = reinterpret_cast<SeekableStream *>(client_data);
 227                         FLAC__ASSERT(0 != instance);
 228                         return instance->seek_callback(absolute_byte_offset);
 229                 }
 230
 231                 ::FLAC__SeekableStreamDecoderTellStatus SeekableStream::tell_callback_(const ::FLAC__SeekableStreamDecoder *decoder, FLAC__uint64 *absolute_byte_offset, void *client_data)
 232                 {
 233                         (void) decoder;
 234                         FLAC__ASSERT(0 != client_data);
 235                         SeekableStream *instance = reinterpret_cast<SeekableStream *>(client_data);
 236                         FLAC__ASSERT(0 != instance);
 237                         return instance->tell_callback(absolute_byte_offset);
 238                 }
 239
 240                 ::FLAC__SeekableStreamDecoderLengthStatus SeekableStream::length_callback_(const ::FLAC__SeekableStreamDecoder *decoder, FLAC__uint64 *stream_length, void *client_data)
 241                 {
 242                         (void) decoder;
 243                         FLAC__ASSERT(0 != client_data);
 244                         SeekableStream *instance = reinterpret_cast<SeekableStream *>(client_data);
 245                         FLAC__ASSERT(0 != instance);
 246                         return instance->length_callback(stream_length);
 247                 }
 248
 249                 FLAC__bool SeekableStream::eof_callback_(const ::FLAC__SeekableStreamDecoder *decoder, void *client_data)
 250                 {
 251                         (void) decoder;
 252                         FLAC__ASSERT(0 != client_data);
 253                         SeekableStream *instance = reinterpret_cast<SeekableStream *>(client_data);
 254                         FLAC__ASSERT(0 != instance);
 255                         return instance->eof_callback();
 256                 }
 257
 258                 ::FLAC__StreamDecoderWriteStatus SeekableStream::write_callback_(const ::FLAC__SeekableStreamDecoder *decoder, const ::FLAC__Frame *frame, const FLAC__int32 * const buffer[], void *client_data)
 259                 {
 260                         (void) decoder;
 261                         FLAC__ASSERT(0 != client_data);
 262                         SeekableStream *instance = reinterpret_cast<SeekableStream *>(client_data);
 263                         FLAC__ASSERT(0 != instance);
 264                         return instance->write_callback(frame, buffer);
 265                 }
 266
 267                 void SeekableStream::metadata_callback_(const ::FLAC__SeekableStreamDecoder *decoder, const ::FLAC__StreamMetadata *metadata, void *client_data)
 268                 {
 269                         (void) decoder;
 270                         FLAC__ASSERT(0 != client_data);
 271                         SeekableStream *instance = reinterpret_cast<SeekableStream *>(client_data);
 272                         FLAC__ASSERT(0 != instance);
 273                         instance->metadata_callback(metadata);
 274                 }
 275
 276                 void SeekableStream::error_callback_(const ::FLAC__SeekableStreamDecoder *decoder, ::FLAC__StreamDecoderErrorStatus status, void *client_data)
 277                 {
 278                         (void) decoder;
 279                         FLAC__ASSERT(0 != client_data);
 280                         SeekableStream *instance = reinterpret_cast<SeekableStream *>(client_data);
 281                         FLAC__ASSERT(0 != instance);
 282                         instance->error_callback(status);
 283                 }
 284
 285         }
 286 }