Lines Matching defs:decoder
105 static void set_defaults_(FLAC__StreamDecoder *decoder);
107 static FLAC__bool allocate_output_(FLAC__StreamDecoder *decoder, unsigned size, unsigned channels);
108 static FLAC__bool has_id_filtered_(FLAC__StreamDecoder *decoder, FLAC__byte *id);
109 static FLAC__bool find_metadata_(FLAC__StreamDecoder *decoder);
110 static FLAC__bool read_metadata_(FLAC__StreamDecoder *decoder);
111 static FLAC__bool read_metadata_streaminfo_(FLAC__StreamDecoder *decoder, FLAC__bool is_last, unsigned length);
112 static FLAC__bool read_metadata_seektable_(FLAC__StreamDecoder *decoder, FLAC__bool is_last, unsigned length);
113 static FLAC__bool read_metadata_vorbiscomment_(FLAC__StreamDecoder *decoder, FLAC__StreamMetadata_VorbisComment *obj);
114 static FLAC__bool read_metadata_cuesheet_(FLAC__StreamDecoder *decoder, FLAC__StreamMetadata_CueSheet *obj);
115 static FLAC__bool read_metadata_picture_(FLAC__StreamDecoder *decoder, FLAC__StreamMetadata_Picture *obj);
116 static FLAC__bool skip_id3v2_tag_(FLAC__StreamDecoder *decoder);
117 static FLAC__bool frame_sync_(FLAC__StreamDecoder *decoder);
118 static FLAC__bool read_frame_(FLAC__StreamDecoder *decoder, FLAC__bool *got_a_frame, FLAC__bool do_full_decode);
119 static FLAC__bool read_frame_header_(FLAC__StreamDecoder *decoder);
120 static FLAC__bool read_subframe_(FLAC__StreamDecoder *decoder, unsigned channel, unsigned bps, FLAC__bool do_full_decode);
121 static FLAC__bool read_subframe_constant_(FLAC__StreamDecoder *decoder, unsigned channel, unsigned bps, FLAC__bool do_full_decode);
122 static FLAC__bool read_subframe_fixed_(FLAC__StreamDecoder *decoder, unsigned channel, unsigned bps, const unsigned order, FLAC__bool do_full_decode);
123 static FLAC__bool read_subframe_lpc_(FLAC__StreamDecoder *decoder, unsigned channel, unsigned bps, const unsigned order, FLAC__bool do_full_decode);
124 static FLAC__bool read_subframe_verbatim_(FLAC__StreamDecoder *decoder, unsigned channel, unsigned bps, FLAC__bool do_full_decode);
125 static FLAC__bool read_residual_partitioned_rice_(FLAC__StreamDecoder *decoder, unsigned predictor_order, unsigned partition_order, FLAC__EntropyCodingMethod_PartitionedRiceContents *partitioned_rice_contents, FLAC__int32 *residual, FLAC__bool is_extended);
126 static FLAC__bool read_zero_padding_(FLAC__StreamDecoder *decoder);
129 static FLAC__StreamDecoderReadStatus read_callback_ogg_aspect_(const FLAC__StreamDecoder *decoder, FLAC__byte buffer[], size_t *bytes);
132 static FLAC__StreamDecoderWriteStatus write_audio_frame_to_client_(FLAC__StreamDecoder *decoder, const FLAC__Frame *frame, const FLAC__int32 * const buffer[]);
133 static void send_error_to_client_(const FLAC__StreamDecoder *decoder, FLAC__StreamDecoderErrorStatus status);
134 static FLAC__bool seek_to_absolute_sample_(FLAC__StreamDecoder *decoder, FLAC__uint64 stream_length, FLAC__uint64 target_sample);
136 static FLAC__bool seek_to_absolute_sample_ogg_(FLAC__StreamDecoder *decoder, FLAC__uint64 stream_length, FLAC__uint64 target_sample);
138 static FLAC__StreamDecoderReadStatus file_read_callback_(const FLAC__StreamDecoder *decoder, FLAC__byte buffer[], size_t *bytes, void *client_data);
139 static FLAC__StreamDecoderSeekStatus file_seek_callback_(const FLAC__StreamDecoder *decoder, FLAC__uint64 absolute_byte_offset, void *client_data);
140 static FLAC__StreamDecoderTellStatus file_tell_callback_(const FLAC__StreamDecoder *decoder, FLAC__uint64 *absolute_byte_offset, void *client_data);
141 static FLAC__StreamDecoderLengthStatus file_length_callback_(const FLAC__StreamDecoder *decoder, FLAC__uint64 *stream_length, void *client_data);
142 static FLAC__bool file_eof_callback_(const FLAC__StreamDecoder *decoder, void *client_data);
194 FLAC__bool internal_reset_hack; /* used only during init() so we can call reset to set up the decoder without rewinding the input */
279 FLAC__StreamDecoder *decoder;
284 decoder = (FLAC__StreamDecoder*)calloc(1, sizeof(FLAC__StreamDecoder));
285 if(decoder == 0) {
289 decoder->protected_ = (FLAC__StreamDecoderProtected*)calloc(1, sizeof(FLAC__StreamDecoderProtected));
290 if(decoder->protected_ == 0) {
291 free(decoder);
295 decoder->private_ = (FLAC__StreamDecoderPrivate*)calloc(1, sizeof(FLAC__StreamDecoderPrivate));
296 if(decoder->private_ == 0) {
297 free(decoder->protected_);
298 free(decoder);
302 decoder->private_->input = FLAC__bitreader_new();
303 if(decoder->private_->input == 0) {
304 free(decoder->private_);
305 free(decoder->protected_);
306 free(decoder);
310 decoder->private_->metadata_filter_ids_capacity = 16;
311 if(0 == (decoder->private_->metadata_filter_ids = (FLAC__byte*)malloc((FLAC__STREAM_METADATA_APPLICATION_ID_LEN/8) * decoder->private_->metadata_filter_ids_capacity))) {
312 FLAC__bitreader_delete(decoder->private_->input);
313 free(decoder->private_);
314 free(decoder->protected_);
315 free(decoder);
320 decoder->private_->output[i] = 0;
321 decoder->private_->residual_unaligned[i] = decoder->private_->residual[i] = 0;
324 decoder->private_->output_capacity = 0;
325 decoder->private_->output_channels = 0;
326 decoder->private_->has_seek_table = false;
329 FLAC__format_entropy_coding_method_partitioned_rice_contents_init(&decoder->private_->partitioned_rice_contents[i]);
331 decoder->private_->file = 0;
333 set_defaults_(decoder);
335 decoder->protected_->state = FLAC__STREAM_DECODER_UNINITIALIZED;
337 return decoder;
340 FLAC_API void FLAC__stream_decoder_delete(FLAC__StreamDecoder *decoder)
344 FLAC__ASSERT(0 != decoder);
345 FLAC__ASSERT(0 != decoder->protected_);
346 FLAC__ASSERT(0 != decoder->private_);
347 FLAC__ASSERT(0 != decoder->private_->input);
349 (void)FLAC__stream_decoder_finish(decoder);
351 if(0 != decoder->private_->metadata_filter_ids)
352 free(decoder->private_->metadata_filter_ids);
354 FLAC__bitreader_delete(decoder->private_->input);
357 FLAC__format_entropy_coding_method_partitioned_rice_contents_clear(&decoder->private_->partitioned_rice_contents[i]);
359 free(decoder->private_);
360 free(decoder->protected_);
361 free(decoder);
371 FLAC__StreamDecoder *decoder,
384 FLAC__ASSERT(0 != decoder);
386 if(decoder->protected_->state != FLAC__STREAM_DECODER_UNINITIALIZED)
403 decoder->private_->is_ogg = is_ogg;
404 if(is_ogg && !FLAC__ogg_decoder_aspect_init(&decoder->protected_->ogg_decoder_aspect))
405 return decoder->protected_->state = FLAC__STREAM_DECODER_OGG_ERROR;
411 FLAC__cpu_info(&decoder->private_->cpuinfo);
413 decoder->private_->local_lpc_restore_signal = FLAC__lpc_restore_signal;
414 decoder->private_->local_lpc_restore_signal_64bit = FLAC__lpc_restore_signal_wide;
415 decoder->private_->local_lpc_restore_signal_16bit = FLAC__lpc_restore_signal;
416 decoder->private_->local_lpc_restore_signal_16bit_order8 = FLAC__lpc_restore_signal;
417 decoder->private_->local_bitreader_read_rice_signed_block = FLAC__bitreader_read_rice_signed_block;
420 if(decoder->private_->cpuinfo.use_asm) {
422 FLAC__ASSERT(decoder->private_->cpuinfo.type == FLAC__CPUINFO_TYPE_IA32);
425 if(decoder->private_->cpuinfo.data.ia32.bswap)
426 decoder->private_->local_bitreader_read_rice_signed_block = FLAC__bitreader_read_rice_signed_block_asm_ia32_bswap;
428 if(decoder->private_->cpuinfo.data.ia32.mmx) {
429 decoder->private_->local_lpc_restore_signal = FLAC__lpc_restore_signal_asm_ia32;
430 decoder->private_->local_lpc_restore_signal_16bit = FLAC__lpc_restore_signal_asm_ia32_mmx;
431 decoder->private_->local_lpc_restore_signal_16bit_order8 = FLAC__lpc_restore_signal_asm_ia32_mmx;
434 decoder->private_->local_lpc_restore_signal = FLAC__lpc_restore_signal_asm_ia32;
435 decoder->private_->local_lpc_restore_signal_16bit = FLAC__lpc_restore_signal_asm_ia32;
436 decoder->private_->local_lpc_restore_signal_16bit_order8 = FLAC__lpc_restore_signal_asm_ia32;
440 FLAC__ASSERT(decoder->private_->cpuinfo.type == FLAC__CPUINFO_TYPE_PPC);
441 if(decoder->private_->cpuinfo.data.ppc.altivec) {
442 decoder->private_->local_lpc_restore_signal_16bit = FLAC__lpc_restore_signal_asm_ppc_altivec_16;
443 decoder->private_->local_lpc_restore_signal_16bit_order8 = FLAC__lpc_restore_signal_asm_ppc_altivec_16_order8;
451 if(!FLAC__bitreader_init(decoder->private_->input, decoder->private_->cpuinfo, read_callback_, decoder)) {
452 decoder->protected_->state = FLAC__STREAM_DECODER_MEMORY_ALLOCATION_ERROR;
456 decoder->private_->read_callback = read_callback;
457 decoder->private_->seek_callback = seek_callback;
458 decoder->private_->tell_callback = tell_callback;
459 decoder->private_->length_callback = length_callback;
460 decoder->private_->eof_callback = eof_callback;
461 decoder->private_->write_callback = write_callback;
462 decoder->private_->metadata_callback = metadata_callback;
463 decoder->private_->error_callback = error_callback;
464 decoder->private_->client_data = client_data;
465 decoder->private_->fixed_block_size = decoder->private_->next_fixed_block_size = 0;
466 decoder->private_->samples_decoded = 0;
467 decoder->private_->has_stream_info = false;
468 decoder->private_->cached = false;
470 decoder->private_->do_md5_checking = decoder->protected_->md5_checking;
471 decoder->private_->is_seeking = false;
473 decoder->private_->internal_reset_hack = true; /* so the following reset does not try to rewind the input */
474 if(!FLAC__stream_decoder_reset(decoder)) {
483 FLAC__StreamDecoder *decoder,
496 decoder,
511 FLAC__StreamDecoder *decoder,
524 decoder,
539 FLAC__StreamDecoder *decoder,
548 FLAC__ASSERT(0 != decoder);
551 if(decoder->protected_->state != FLAC__STREAM_DECODER_UNINITIALIZED)
552 return decoder->protected_->state = FLAC__STREAM_DECODER_INIT_STATUS_ALREADY_INITIALIZED;
555 return decoder->protected_->state = FLAC__STREAM_DECODER_INIT_STATUS_INVALID_CALLBACKS;
565 decoder->private_->file = file;
568 decoder,
570 decoder->private_->file == stdin? 0: file_seek_callback_,
571 decoder->private_->file == stdin? 0: file_tell_callback_,
572 decoder->private_->file == stdin? 0: file_length_callback_,
583 FLAC__StreamDecoder *decoder,
591 return init_FILE_internal_(decoder, file, write_callback, metadata_callback, error_callback, client_data, /*is_ogg=*/false);
595 FLAC__StreamDecoder *decoder,
603 return init_FILE_internal_(decoder, file, write_callback, metadata_callback, error_callback, client_data, /*is_ogg=*/true);
607 FLAC__StreamDecoder *decoder,
618 FLAC__ASSERT(0 != decoder);
625 if(decoder->protected_->state != FLAC__STREAM_DECODER_UNINITIALIZED)
626 return decoder->protected_->state = FLAC__STREAM_DECODER_INIT_STATUS_ALREADY_INITIALIZED;
629 return decoder->protected_->state = FLAC__STREAM_DECODER_INIT_STATUS_INVALID_CALLBACKS;
636 return init_FILE_internal_(decoder, file, write_callback, metadata_callback, error_callback, client_data, is_ogg);
640 FLAC__StreamDecoder *decoder,
648 return init_file_internal_(decoder, filename, write_callback, metadata_callback, error_callback, client_data, /*is_ogg=*/false);
652 FLAC__StreamDecoder *decoder,
660 return init_file_internal_(decoder, filename, write_callback, metadata_callback, error_callback, client_data, /*is_ogg=*/true);
663 FLAC_API FLAC__bool FLAC__stream_decoder_finish(FLAC__StreamDecoder *decoder)
668 FLAC__ASSERT(0 != decoder);
669 FLAC__ASSERT(0 != decoder->private_);
670 FLAC__ASSERT(0 != decoder->protected_);
672 if(decoder->protected_->state == FLAC__STREAM_DECODER_UNINITIALIZED)
678 FLAC__MD5Final(decoder->private_->computed_md5sum, &decoder->private_->md5context);
680 if(decoder->private_->has_seek_table && 0 != decoder->private_->seek_table.data.seek_table.points) {
681 free(decoder->private_->seek_table.data.seek_table.points);
682 decoder->private_->seek_table.data.seek_table.points = 0;
683 decoder->private_->has_seek_table = false;
685 FLAC__bitreader_free(decoder->private_->input);
693 if(0 != decoder->private_->output[i]) {
694 free(decoder->private_->output[i]-4);
695 decoder->private_->output[i] = 0;
697 if(0 != decoder->private_->residual_unaligned[i]) {
698 free(decoder->private_->residual_unaligned[i]);
699 decoder->private_->residual_unaligned[i] = decoder->private_->residual[i] = 0;
702 decoder->private_->output_capacity = 0;
703 decoder->private_->output_channels = 0;
706 if(decoder->private_->is_ogg)
707 FLAC__ogg_decoder_aspect_finish(&decoder->protected_->ogg_decoder_aspect);
710 if(0 != decoder->private_->file) {
711 if(decoder->private_->file != stdin)
712 fclose(decoder->private_->file);
713 decoder->private_->file = 0;
716 if(decoder->private_->do_md5_checking) {
717 if(memcmp(decoder->private_->stream_info.data.stream_info.md5sum, decoder->private_->computed_md5sum, 16))
720 decoder->private_->is_seeking = false;
722 set_defaults_(decoder);
724 decoder->protected_->state = FLAC__STREAM_DECODER_UNINITIALIZED;
729 FLAC_API FLAC__bool FLAC__stream_decoder_set_ogg_serial_number(FLAC__StreamDecoder *decoder, long value)
731 FLAC__ASSERT(0 != decoder);
732 FLAC__ASSERT(0 != decoder->private_);
733 FLAC__ASSERT(0 != decoder->protected_);
734 if(decoder->protected_->state != FLAC__STREAM_DECODER_UNINITIALIZED)
737 /* can't check decoder->private_->is_ogg since that's not set until init time */
738 FLAC__ogg_decoder_aspect_set_serial_number(&decoder->protected_->ogg_decoder_aspect, value);
746 FLAC_API FLAC__bool FLAC__stream_decoder_set_md5_checking(FLAC__StreamDecoder *decoder, FLAC__bool value)
748 FLAC__ASSERT(0 != decoder);
749 FLAC__ASSERT(0 != decoder->protected_);
750 if(decoder->protected_->state != FLAC__STREAM_DECODER_UNINITIALIZED)
752 decoder->protected_->md5_checking = value;
756 FLAC_API FLAC__bool FLAC__stream_decoder_set_metadata_respond(FLAC__StreamDecoder *decoder, FLAC__MetadataType type)
758 FLAC__ASSERT(0 != decoder);
759 FLAC__ASSERT(0 != decoder->private_);
760 FLAC__ASSERT(0 != decoder->protected_);
765 if(decoder->protected_->state != FLAC__STREAM_DECODER_UNINITIALIZED)
767 decoder->private_->metadata_filter[type] = true;
769 decoder->private_->metadata_filter_ids_count = 0;
773 FLAC_API FLAC__bool FLAC__stream_decoder_set_metadata_respond_application(FLAC__StreamDecoder *decoder, const FLAC__byte id[4])
775 FLAC__ASSERT(0 != decoder);
776 FLAC__ASSERT(0 != decoder->private_);
777 FLAC__ASSERT(0 != decoder->protected_);
779 if(decoder->protected_->state != FLAC__STREAM_DECODER_UNINITIALIZED)
782 if(decoder->private_->metadata_filter[FLAC__METADATA_TYPE_APPLICATION])
785 FLAC__ASSERT(0 != decoder->private_->metadata_filter_ids);
787 if(decoder->private_->metadata_filter_ids_count == decoder->private_->metadata_filter_ids_capacity) {
788 if(0 == (decoder->private_->metadata_filter_ids = (FLAC__byte*)safe_realloc_mul_2op_(decoder->private_->metadata_filter_ids, decoder->private_->metadata_filter_ids_capacity, /*times*/2))) {
789 decoder->protected_->state = FLAC__STREAM_DECODER_MEMORY_ALLOCATION_ERROR;
792 decoder->private_->metadata_filter_ids_capacity *= 2;
795 memcpy(decoder->private_->metadata_filter_ids + decoder->private_->metadata_filter_ids_count * (FLAC__STREAM_METADATA_APPLICATION_ID_LEN/8), id, (FLAC__STREAM_METADATA_APPLICATION_ID_LEN/8));
796 decoder->private_->metadata_filter_ids_count++;
801 FLAC_API FLAC__bool FLAC__stream_decoder_set_metadata_respond_all(FLAC__StreamDecoder *decoder)
804 FLAC__ASSERT(0 != decoder);
805 FLAC__ASSERT(0 != decoder->private_);
806 FLAC__ASSERT(0 != decoder->protected_);
807 if(decoder->protected_->state != FLAC__STREAM_DECODER_UNINITIALIZED)
809 for(i = 0; i < sizeof(decoder->private_->metadata_filter) / sizeof(decoder->private_->metadata_filter[0]); i++)
810 decoder->private_->metadata_filter[i] = true;
811 decoder->private_->metadata_filter_ids_count = 0;
815 FLAC_API FLAC__bool FLAC__stream_decoder_set_metadata_ignore(FLAC__StreamDecoder *decoder, FLAC__MetadataType type)
817 FLAC__ASSERT(0 != decoder);
818 FLAC__ASSERT(0 != decoder->private_);
819 FLAC__ASSERT(0 != decoder->protected_);
824 if(decoder->protected_->state != FLAC__STREAM_DECODER_UNINITIALIZED)
826 decoder->private_->metadata_filter[type] = false;
828 decoder->private_->metadata_filter_ids_count = 0;
832 FLAC_API FLAC__bool FLAC__stream_decoder_set_metadata_ignore_application(FLAC__StreamDecoder *decoder, const FLAC__byte id[4])
834 FLAC__ASSERT(0 != decoder);
835 FLAC__ASSERT(0 != decoder->private_);
836 FLAC__ASSERT(0 != decoder->protected_);
838 if(decoder->protected_->state != FLAC__STREAM_DECODER_UNINITIALIZED)
841 if(!decoder->private_->metadata_filter[FLAC__METADATA_TYPE_APPLICATION])
844 FLAC__ASSERT(0 != decoder->private_->metadata_filter_ids);
846 if(decoder->private_->metadata_filter_ids_count == decoder->private_->metadata_filter_ids_capacity) {
847 if(0 == (decoder->private_->metadata_filter_ids = (FLAC__byte*)safe_realloc_mul_2op_(decoder->private_->metadata_filter_ids, decoder->private_->metadata_filter_ids_capacity, /*times*/2))) {
848 decoder->protected_->state = FLAC__STREAM_DECODER_MEMORY_ALLOCATION_ERROR;
851 decoder->private_->metadata_filter_ids_capacity *= 2;
854 memcpy(decoder->private_->metadata_filter_ids + decoder->private_->metadata_filter_ids_count * (FLAC__STREAM_METADATA_APPLICATION_ID_LEN/8), id, (FLAC__STREAM_METADATA_APPLICATION_ID_LEN/8));
855 decoder->private_->metadata_filter_ids_count++;
860 FLAC_API FLAC__bool FLAC__stream_decoder_set_metadata_ignore_all(FLAC__StreamDecoder *decoder)
862 FLAC__ASSERT(0 != decoder);
863 FLAC__ASSERT(0 != decoder->private_);
864 FLAC__ASSERT(0 != decoder->protected_);
865 if(decoder->protected_->state != FLAC__STREAM_DECODER_UNINITIALIZED)
867 memset(decoder->private_->metadata_filter, 0, sizeof(decoder->private_->metadata_filter));
868 decoder->private_->metadata_filter_ids_count = 0;
872 FLAC_API FLAC__StreamDecoderState FLAC__stream_decoder_get_state(const FLAC__StreamDecoder *decoder)
874 FLAC__ASSERT(0 != decoder);
875 FLAC__ASSERT(0 != decoder->protected_);
876 return decoder->protected_->state;
879 FLAC_API const char *FLAC__stream_decoder_get_resolved_state_string(const FLAC__StreamDecoder *decoder)
881 return FLAC__StreamDecoderStateString[decoder->protected_->state];
884 FLAC_API FLAC__bool FLAC__stream_decoder_get_md5_checking(const FLAC__StreamDecoder *decoder)
886 FLAC__ASSERT(0 != decoder);
887 FLAC__ASSERT(0 != decoder->protected_);
888 return decoder->protected_->md5_checking;
891 FLAC_API FLAC__uint64 FLAC__stream_decoder_get_total_samples(const FLAC__StreamDecoder *decoder)
893 FLAC__ASSERT(0 != decoder);
894 FLAC__ASSERT(0 != decoder->protected_);
895 return decoder->private_->has_stream_info? decoder->private_->stream_info.data.stream_info.total_samples : 0;
898 FLAC_API unsigned FLAC__stream_decoder_get_channels(const FLAC__StreamDecoder *decoder)
900 FLAC__ASSERT(0 != decoder);
901 FLAC__ASSERT(0 != decoder->protected_);
902 return decoder->protected_->channels;
905 FLAC_API FLAC__ChannelAssignment FLAC__stream_decoder_get_channel_assignment(const FLAC__StreamDecoder *decoder)
907 FLAC__ASSERT(0 != decoder);
908 FLAC__ASSERT(0 != decoder->protected_);
909 return decoder->protected_->channel_assignment;
912 FLAC_API unsigned FLAC__stream_decoder_get_bits_per_sample(const FLAC__StreamDecoder *decoder)
914 FLAC__ASSERT(0 != decoder);
915 FLAC__ASSERT(0 != decoder->protected_);
916 return decoder->protected_->bits_per_sample;
919 FLAC_API unsigned FLAC__stream_decoder_get_sample_rate(const FLAC__StreamDecoder *decoder)
921 FLAC__ASSERT(0 != decoder);
922 FLAC__ASSERT(0 != decoder->protected_);
923 return decoder->protected_->sample_rate;
926 FLAC_API unsigned FLAC__stream_decoder_get_blocksize(const FLAC__StreamDecoder *decoder)
928 FLAC__ASSERT(0 != decoder);
929 FLAC__ASSERT(0 != decoder->protected_);
930 return decoder->protected_->blocksize;
933 FLAC_API FLAC__bool FLAC__stream_decoder_get_decode_position(const FLAC__StreamDecoder *decoder, FLAC__uint64 *position)
935 FLAC__ASSERT(0 != decoder);
936 FLAC__ASSERT(0 != decoder->private_);
940 if(decoder->private_->is_ogg)
943 if(0 == decoder->private_->tell_callback)
945 if(decoder->private_->tell_callback(decoder, position, decoder->private_->client_data) != FLAC__STREAM_DECODER_TELL_STATUS_OK)
948 if(!FLAC__bitreader_is_consumed_byte_aligned(decoder->private_->input))
950 FLAC__ASSERT(*position >= FLAC__stream_decoder_get_input_bytes_unconsumed(decoder));
951 *position -= FLAC__stream_decoder_get_input_bytes_unconsumed(decoder);
955 FLAC_API FLAC__bool FLAC__stream_decoder_flush(FLAC__StreamDecoder *decoder)
957 FLAC__ASSERT(0 != decoder);
958 FLAC__ASSERT(0 != decoder->private_);
959 FLAC__ASSERT(0 != decoder->protected_);
961 decoder->private_->samples_decoded = 0;
962 decoder->private_->do_md5_checking = false;
965 if(decoder->private_->is_ogg)
966 FLAC__ogg_decoder_aspect_flush(&decoder->protected_->ogg_decoder_aspect);
969 if(!FLAC__bitreader_clear(decoder->private_->input)) {
970 decoder->protected_->state = FLAC__STREAM_DECODER_MEMORY_ALLOCATION_ERROR;
973 decoder->protected_->state = FLAC__STREAM_DECODER_SEARCH_FOR_FRAME_SYNC;
978 FLAC_API FLAC__bool FLAC__stream_decoder_reset(FLAC__StreamDecoder *decoder)
980 FLAC__ASSERT(0 != decoder);
981 FLAC__ASSERT(0 != decoder->private_);
982 FLAC__ASSERT(0 != decoder->protected_);
984 if(!FLAC__stream_decoder_flush(decoder)) {
991 if(decoder->private_->is_ogg)
992 FLAC__ogg_decoder_aspect_reset(&decoder->protected_->ogg_decoder_aspect);
1000 if(!decoder->private_->internal_reset_hack) {
1001 if(decoder->private_->file == stdin)
1003 if(decoder->private_->seek_callback && decoder->private_->seek_callback(decoder, 0, decoder->private_->client_data) == FLAC__STREAM_DECODER_SEEK_STATUS_ERROR)
1007 decoder->private_->internal_reset_hack = false;
1009 decoder->protected_->state = FLAC__STREAM_DECODER_SEARCH_FOR_METADATA;
1011 decoder->private_->has_stream_info = false;
1012 if(decoder->private_->has_seek_table && 0 != decoder->private_->seek_table.data.seek_table.points) {
1013 free(decoder->private_->seek_table.data.seek_table.points);
1014 decoder->private_->seek_table.data.seek_table.points = 0;
1015 decoder->private_->has_seek_table = false;
1017 decoder->private_->do_md5_checking = decoder->protected_->md5_checking;
1022 decoder->private_->fixed_block_size = decoder->private_->next_fixed_block_size = 0;
1030 FLAC__MD5Init(&decoder->private_->md5context);
1032 decoder->private_->first_frame_offset = 0;
1033 decoder->private_->unparseable_frame_count = 0;
1038 FLAC_API FLAC__bool FLAC__stream_decoder_process_single(FLAC__StreamDecoder *decoder)
1041 FLAC__ASSERT(0 != decoder);
1042 FLAC__ASSERT(0 != decoder->protected_);
1045 switch(decoder->protected_->state) {
1047 if(!find_metadata_(decoder))
1051 if(!read_metadata_(decoder))
1056 if(!frame_sync_(decoder))
1060 if(!read_frame_(decoder, &got_a_frame, /*do_full_decode=*/true))
1075 FLAC_API FLAC__bool FLAC__stream_decoder_process_until_end_of_metadata(FLAC__StreamDecoder *decoder)
1077 FLAC__ASSERT(0 != decoder);
1078 FLAC__ASSERT(0 != decoder->protected_);
1081 switch(decoder->protected_->state) {
1083 if(!find_metadata_(decoder))
1087 if(!read_metadata_(decoder))
1102 FLAC_API FLAC__bool FLAC__stream_decoder_process_until_end_of_stream(FLAC__StreamDecoder *decoder)
1105 FLAC__ASSERT(0 != decoder);
1106 FLAC__ASSERT(0 != decoder->protected_);
1109 switch(decoder->protected_->state) {
1111 if(!find_metadata_(decoder))
1115 if(!read_metadata_(decoder))
1119 if(!frame_sync_(decoder))
1123 if(!read_frame_(decoder, &dummy, /*do_full_decode=*/true))
1136 FLAC_API FLAC__bool FLAC__stream_decoder_skip_single_frame(FLAC__StreamDecoder *decoder)
1139 FLAC__ASSERT(0 != decoder);
1140 FLAC__ASSERT(0 != decoder->protected_);
1143 switch(decoder->protected_->state) {
1148 if(!frame_sync_(decoder))
1152 if(!read_frame_(decoder, &got_a_frame, /*do_full_decode=*/false))
1167 FLAC_API FLAC__bool FLAC__stream_decoder_seek_absolute(FLAC__StreamDecoder *decoder, FLAC__uint64 sample)
1171 FLAC__ASSERT(0 != decoder);
1174 decoder->protected_->state != FLAC__STREAM_DECODER_SEARCH_FOR_METADATA &&
1175 decoder->protected_->state != FLAC__STREAM_DECODER_READ_METADATA &&
1176 decoder->protected_->state != FLAC__STREAM_DECODER_SEARCH_FOR_FRAME_SYNC &&
1177 decoder->protected_->state != FLAC__STREAM_DECODER_READ_FRAME &&
1178 decoder->protected_->state != FLAC__STREAM_DECODER_END_OF_STREAM
1182 if(0 == decoder->private_->seek_callback)
1185 FLAC__ASSERT(decoder->private_->seek_callback);
1186 FLAC__ASSERT(decoder->private_->tell_callback);
1187 FLAC__ASSERT(decoder->private_->length_callback);
1188 FLAC__ASSERT(decoder->private_->eof_callback);
1190 if(FLAC__stream_decoder_get_total_samples(decoder) > 0 && sample >= FLAC__stream_decoder_get_total_samples(decoder))
1193 decoder->private_->is_seeking = true;
1196 decoder->private_->do_md5_checking = false;
1199 if(decoder->private_->length_callback(decoder, &length, decoder->private_->client_data) != FLAC__STREAM_DECODER_LENGTH_STATUS_OK) {
1200 decoder->private_->is_seeking = false;
1206 decoder->protected_->state == FLAC__STREAM_DECODER_SEARCH_FOR_METADATA ||
1207 decoder->protected_->state == FLAC__STREAM_DECODER_READ_METADATA
1209 if(!FLAC__stream_decoder_process_until_end_of_metadata(decoder)) {
1211 decoder->private_->is_seeking = false;
1215 if(FLAC__stream_decoder_get_total_samples(decoder) > 0 && sample >= FLAC__stream_decoder_get_total_samples(decoder)) {
1216 decoder->private_->is_seeking = false;
1224 decoder->private_->is_ogg?
1225 seek_to_absolute_sample_ogg_(decoder, length, sample) :
1227 seek_to_absolute_sample_(decoder, length, sample)
1229 decoder->private_->is_seeking = false;
1240 unsigned FLAC__stream_decoder_get_input_bytes_unconsumed(const FLAC__StreamDecoder *decoder)
1242 FLAC__ASSERT(0 != decoder);
1243 FLAC__ASSERT(FLAC__bitreader_is_consumed_byte_aligned(decoder->private_->input));
1244 FLAC__ASSERT(!(FLAC__bitreader_get_input_bits_unconsumed(decoder->private_->input) & 7));
1245 return FLAC__bitreader_get_input_bits_unconsumed(decoder->private_->input) / 8;
1254 void set_defaults_(FLAC__StreamDecoder *decoder)
1257 decoder->private_->is_ogg = false;
1259 decoder->private_->read_callback = 0;
1260 decoder->private_->seek_callback = 0;
1261 decoder->private_->tell_callback = 0;
1262 decoder->private_->length_callback = 0;
1263 decoder->private_->eof_callback = 0;
1264 decoder->private_->write_callback = 0;
1265 decoder->private_->metadata_callback = 0;
1266 decoder->private_->error_callback = 0;
1267 decoder->private_->client_data = 0;
1269 memset(decoder->private_->metadata_filter, 0, sizeof(decoder->private_->metadata_filter));
1270 decoder->private_->metadata_filter[FLAC__METADATA_TYPE_STREAMINFO] = true;
1271 decoder->private_->metadata_filter_ids_count = 0;
1273 decoder->protected_->md5_checking = false;
1276 FLAC__ogg_decoder_aspect_set_defaults(&decoder->protected_->ogg_decoder_aspect);
1301 FLAC__bool allocate_output_(FLAC__StreamDecoder *decoder, unsigned size, unsigned channels)
1306 if(size <= decoder->private_->output_capacity && channels <= decoder->private_->output_channels)
1312 if(0 != decoder->private_->output[i]) {
1313 free(decoder->private_->output[i]-4);
1314 decoder->private_->output[i] = 0;
1316 if(0 != decoder->private_->residual_unaligned[i]) {
1317 free(decoder->private_->residual_unaligned[i]);
1318 decoder->private_->residual_unaligned[i] = decoder->private_->residual[i] = 0;
1331 decoder->protected_->state = FLAC__STREAM_DECODER_MEMORY_ALLOCATION_ERROR;
1335 decoder->private_->output[i] = tmp + 4;
1340 if(!FLAC__memory_alloc_aligned_int32_array(size, &decoder->private_->residual_unaligned[i], &decoder->private_->residual[i])) {
1341 decoder->protected_->state = FLAC__STREAM_DECODER_MEMORY_ALLOCATION_ERROR;
1346 decoder->private_->output_capacity = size;
1347 decoder->private_->output_channels = channels;
1352 FLAC__bool has_id_filtered_(FLAC__StreamDecoder *decoder, FLAC__byte *id)
1356 FLAC__ASSERT(0 != decoder);
1357 FLAC__ASSERT(0 != decoder->private_);
1359 for(i = 0; i < decoder->private_->metadata_filter_ids_count; i++)
1360 if(0 == memcmp(decoder->private_->metadata_filter_ids + i * (FLAC__STREAM_METADATA_APPLICATION_ID_LEN/8), id, (FLAC__STREAM_METADATA_APPLICATION_ID_LEN/8)))
1366 FLAC__bool find_metadata_(FLAC__StreamDecoder *decoder)
1372 FLAC__ASSERT(FLAC__bitreader_is_consumed_byte_aligned(decoder->private_->input));
1375 if(decoder->private_->cached) {
1376 x = (FLAC__uint32)decoder->private_->lookahead;
1377 decoder->private_->cached = false;
1380 if(!FLAC__bitreader_read_raw_uint32(decoder->private_->input, &x, 8))
1393 if(!skip_id3v2_tag_(decoder))
1400 decoder->private_->header_warmup[0] = (FLAC__byte)x;
1401 if(!FLAC__bitreader_read_raw_uint32(decoder->private_->input, &x, 8))
1407 decoder->private_->lookahead = (FLAC__byte)x;
1408 decoder->private_->cached = true;
1411 decoder->private_->header_warmup[1] = (FLAC__byte)x;
1412 decoder->protected_->state = FLAC__STREAM_DECODER_READ_FRAME;
1418 send_error_to_client_(decoder, FLAC__STREAM_DECODER_ERROR_STATUS_LOST_SYNC);
1423 decoder->protected_->state = FLAC__STREAM_DECODER_READ_METADATA;
1427 FLAC__bool read_metadata_(FLAC__StreamDecoder *decoder)
1432 FLAC__ASSERT(FLAC__bitreader_is_consumed_byte_aligned(decoder->private_->input));
1434 if(!FLAC__bitreader_read_raw_uint32(decoder->private_->input, &x, FLAC__STREAM_METADATA_IS_LAST_LEN))
1438 if(!FLAC__bitreader_read_raw_uint32(decoder->private_->input, &type, FLAC__STREAM_METADATA_TYPE_LEN))
1441 if(!FLAC__bitreader_read_raw_uint32(decoder->private_->input, &length, FLAC__STREAM_METADATA_LENGTH_LEN))
1445 if(!read_metadata_streaminfo_(decoder, is_last, length))
1448 decoder->private_->has_stream_info = true;
1449 if(0 == memcmp(decoder->private_->stream_info.data.stream_info.md5sum, "\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0", 16))
1450 decoder->private_->do_md5_checking = false;
1451 if(!decoder->private_->is_seeking && decoder->private_->metadata_filter[FLAC__METADATA_TYPE_STREAMINFO] && decoder->private_->metadata_callback)
1452 decoder->private_->metadata_callback(decoder, &decoder->private_->stream_info, decoder->private_->client_data);
1455 if(!read_metadata_seektable_(decoder, is_last, length))
1458 decoder->private_->has_seek_table = true;
1459 if(!decoder->private_->is_seeking && decoder->private_->metadata_filter[FLAC__METADATA_TYPE_SEEKTABLE] && decoder->private_->metadata_callback)
1460 decoder->private_->metadata_callback(decoder, &decoder->private_->seek_table, decoder->private_->client_data);
1463 FLAC__bool skip_it = !decoder->private_->metadata_filter[type];
1472 if(!FLAC__bitreader_read_byte_block_aligned_no_crc(decoder->private_->input, block.data.application.id, FLAC__STREAM_METADATA_APPLICATION_ID_LEN/8))
1476 decoder->protected_->state = FLAC__STREAM_DECODER_MEMORY_ALLOCATION_ERROR;/*@@@@@@ maybe wrong error? need to resync?*/
1482 if(decoder->private_->metadata_filter_ids_count > 0 && has_id_filtered_(decoder, block.data.application.id))
1487 if(!FLAC__bitreader_skip_byte_block_aligned_no_crc(decoder->private_->input, real_length))
1494 if(!FLAC__bitreader_skip_byte_block_aligned_no_crc(decoder->private_->input, real_length))
1501 decoder->protected_->state = FLAC__STREAM_DECODER_MEMORY_ALLOCATION_ERROR;
1504 if(!FLAC__bitreader_read_byte_block_aligned_no_crc(decoder->private_->input, block.data.application.data, real_length))
1511 if(!read_metadata_vorbiscomment_(decoder, &block.data.vorbis_comment))
1515 if(!read_metadata_cuesheet_(decoder, &block.data.cue_sheet))
1519 if(!read_metadata_picture_(decoder, &block.data.picture))
1529 decoder->protected_->state = FLAC__STREAM_DECODER_MEMORY_ALLOCATION_ERROR;
1532 if(!FLAC__bitreader_read_byte_block_aligned_no_crc(decoder->private_->input, block.data.unknown.data, real_length))
1539 if(!decoder->private_->is_seeking && decoder->private_->metadata_callback)
1540 decoder->private_->metadata_callback(decoder, &block, decoder->private_->client_data);
1589 if(!FLAC__stream_decoder_get_decode_position(decoder, &decoder->private_->first_frame_offset))
1590 decoder->private_->first_frame_offset = 0;
1591 decoder->protected_->state = FLAC__STREAM_DECODER_SEARCH_FOR_FRAME_SYNC;
1597 FLAC__bool read_metadata_streaminfo_(FLAC__StreamDecoder *decoder, FLAC__bool is_last, unsigned length)
1602 FLAC__ASSERT(FLAC__bitreader_is_consumed_byte_aligned(decoder->private_->input));
1604 decoder->private_->stream_info.type = FLAC__METADATA_TYPE_STREAMINFO;
1605 decoder->private_->stream_info.is_last = is_last;
1606 decoder->private_->stream_info.length = length;
1609 if(!FLAC__bitreader_read_raw_uint32(decoder->private_->input, &x, bits))
1611 decoder->private_->stream_info.data.stream_info.min_blocksize = x;
1615 if(!FLAC__bitreader_read_raw_uint32(decoder->private_->input, &x, FLAC__STREAM_METADATA_STREAMINFO_MAX_BLOCK_SIZE_LEN))
1617 decoder->private_->stream_info.data.stream_info.max_blocksize = x;
1621 if(!FLAC__bitreader_read_raw_uint32(decoder->private_->input, &x, FLAC__STREAM_METADATA_STREAMINFO_MIN_FRAME_SIZE_LEN))
1623 decoder->private_->stream_info.data.stream_info.min_framesize = x;
1627 if(!FLAC__bitreader_read_raw_uint32(decoder->private_->input, &x, FLAC__STREAM_METADATA_STREAMINFO_MAX_FRAME_SIZE_LEN))
1629 decoder->private_->stream_info.data.stream_info.max_framesize = x;
1633 if(!FLAC__bitreader_read_raw_uint32(decoder->private_->input, &x, FLAC__STREAM_METADATA_STREAMINFO_SAMPLE_RATE_LEN))
1635 decoder->private_->stream_info.data.stream_info.sample_rate = x;
1639 if(!FLAC__bitreader_read_raw_uint32(decoder->private_->input, &x, FLAC__STREAM_METADATA_STREAMINFO_CHANNELS_LEN))
1641 decoder->private_->stream_info.data.stream_info.channels = x+1;
1645 if(!FLAC__bitreader_read_raw_uint32(decoder->private_->input, &x, FLAC__STREAM_METADATA_STREAMINFO_BITS_PER_SAMPLE_LEN))
1647 decoder->private_->stream_info.data.stream_info.bits_per_sample = x+1;
1651 if(!FLAC__bitreader_read_raw_uint64(decoder->private_->input, &decoder->private_->stream_info.data.stream_info.total_samples, FLAC__STREAM_METADATA_STREAMINFO_TOTAL_SAMPLES_LEN))
1655 if(!FLAC__bitreader_read_byte_block_aligned_no_crc(decoder->private_->input, decoder->private_->stream_info.data.stream_info.md5sum, 16))
1662 if(!FLAC__bitreader_skip_byte_block_aligned_no_crc(decoder->private_->input, length))
1668 FLAC__bool read_metadata_seektable_(FLAC__StreamDecoder *decoder, FLAC__bool is_last, unsigned length)
1673 FLAC__ASSERT(FLAC__bitreader_is_consumed_byte_aligned(decoder->private_->input));
1675 decoder->private_->seek_table.type = FLAC__METADATA_TYPE_SEEKTABLE;
1676 decoder->private_->seek_table.is_last = is_last;
1677 decoder->private_->seek_table.length = length;
1679 decoder->private_->seek_table.data.seek_table.num_points = length / FLAC__STREAM_METADATA_SEEKPOINT_LENGTH;
1682 if(0 == (decoder->private_->seek_table.data.seek_table.points = (FLAC__StreamMetadata_SeekPoint*)safe_realloc_mul_2op_(decoder->private_->seek_table.data.seek_table.points, decoder->private_->seek_table.data.seek_table.num_points, /*times*/sizeof(FLAC__StreamMetadata_SeekPoint)))) {
1683 decoder->protected_->state = FLAC__STREAM_DECODER_MEMORY_ALLOCATION_ERROR;
1686 for(i = 0; i < decoder->private_->seek_table.data.seek_table.num_points; i++) {
1687 if(!FLAC__bitreader_read_raw_uint64(decoder->private_->input, &xx, FLAC__STREAM_METADATA_SEEKPOINT_SAMPLE_NUMBER_LEN))
1689 decoder->private_->seek_table.data.seek_table.points[i].sample_number = xx;
1691 if(!FLAC__bitreader_read_raw_uint64(decoder->private_->input, &xx, FLAC__STREAM_METADATA_SEEKPOINT_STREAM_OFFSET_LEN))
1693 decoder->private_->seek_table.data.seek_table.points[i].stream_offset = xx;
1695 if(!FLAC__bitreader_read_raw_uint32(decoder->private_->input, &x, FLAC__STREAM_METADATA_SEEKPOINT_FRAME_SAMPLES_LEN))
1697 decoder->private_->seek_table.data.seek_table.points[i].frame_samples = x;
1699 length -= (decoder->private_->seek_table.data.seek_table.num_points * FLAC__STREAM_METADATA_SEEKPOINT_LENGTH);
1703 if(!FLAC__bitreader_skip_byte_block_aligned_no_crc(decoder->private_->input, length))
1710 FLAC__bool read_metadata_vorbiscomment_(FLAC__StreamDecoder *decoder, FLAC__StreamMetadata_VorbisComment *obj)
1714 FLAC__ASSERT(FLAC__bitreader_is_consumed_byte_aligned(decoder->private_->input));
1718 if(!FLAC__bitreader_read_uint32_little_endian(decoder->private_->input, &obj->vendor_string.length))
1722 decoder->protected_->state = FLAC__STREAM_DECODER_MEMORY_ALLOCATION_ERROR;
1725 if(!FLAC__bitreader_read_byte_block_aligned_no_crc(decoder->private_->input, obj->vendor_string.entry, obj->vendor_string.length))
1734 if(!FLAC__bitreader_read_uint32_little_endian(decoder->private_->input, &obj->num_comments))
1740 decoder->protected_->state = FLAC__STREAM_DECODER_MEMORY_ALLOCATION_ERROR;
1745 if(!FLAC__bitreader_read_uint32_little_endian(decoder->private_->input, &obj->comments[i].length))
1749 decoder->protected_->state = FLAC__STREAM_DECODER_MEMORY_ALLOCATION_ERROR;
1752 if(!FLAC__bitreader_read_byte_block_aligned_no_crc(decoder->private_->input, obj->comments[i].entry, obj->comments[i].length))
1767 FLAC__bool read_metadata_cuesheet_(FLAC__StreamDecoder *decoder, FLAC__StreamMetadata_CueSheet *obj)
1771 FLAC__ASSERT(FLAC__bitreader_is_consumed_byte_aligned(decoder->private_->input));
1776 if(!FLAC__bitreader_read_byte_block_aligned_no_crc(decoder->private_->input, (FLAC__byte*)obj->media_catalog_number, FLAC__STREAM_METADATA_CUESHEET_MEDIA_CATALOG_NUMBER_LEN/8))
1779 if(!FLAC__bitreader_read_raw_uint64(decoder->private_->input, &obj->lead_in, FLAC__STREAM_METADATA_CUESHEET_LEAD_IN_LEN))
1782 if(!FLAC__bitreader_read_raw_uint32(decoder->private_->input, &x, FLAC__STREAM_METADATA_CUESHEET_IS_CD_LEN))
1786 if(!FLAC__bitreader_skip_bits_no_crc(decoder->private_->input, FLAC__STREAM_METADATA_CUESHEET_RESERVED_LEN))
1789 if(!FLAC__bitreader_read_raw_uint32(decoder->private_->input, &x, FLAC__STREAM_METADATA_CUESHEET_NUM_TRACKS_LEN))
1795 decoder->protected_->state = FLAC__STREAM_DECODER_MEMORY_ALLOCATION_ERROR;
1800 if(!FLAC__bitreader_read_raw_uint64(decoder->private_->input, &track->offset, FLAC__STREAM_METADATA_CUESHEET_TRACK_OFFSET_LEN))
1803 if(!FLAC__bitreader_read_raw_uint32(decoder->private_->input, &x, FLAC__STREAM_METADATA_CUESHEET_TRACK_NUMBER_LEN))
1808 if(!FLAC__bitreader_read_byte_block_aligned_no_crc(decoder->private_->input, (FLAC__byte*)track->isrc, FLAC__STREAM_METADATA_CUESHEET_TRACK_ISRC_LEN/8))
1811 if(!FLAC__bitreader_read_raw_uint32(decoder->private_->input, &x, FLAC__STREAM_METADATA_CUESHEET_TRACK_TYPE_LEN))
1815 if(!FLAC__bitreader_read_raw_uint32(decoder->private_->input, &x, FLAC__STREAM_METADATA_CUESHEET_TRACK_PRE_EMPHASIS_LEN))
1819 if(!FLAC__bitreader_skip_bits_no_crc(decoder->private_->input, FLAC__STREAM_METADATA_CUESHEET_TRACK_RESERVED_LEN))
1822 if(!FLAC__bitreader_read_raw_uint32(decoder->private_->input, &x, FLAC__STREAM_METADATA_CUESHEET_TRACK_NUM_INDICES_LEN))
1828 decoder->protected_->state = FLAC__STREAM_DECODER_MEMORY_ALLOCATION_ERROR;
1833 if(!FLAC__bitreader_read_raw_uint64(decoder->private_->input, &index->offset, FLAC__STREAM_METADATA_CUESHEET_INDEX_OFFSET_LEN))
1836 if(!FLAC__bitreader_read_raw_uint32(decoder->private_->input, &x, FLAC__STREAM_METADATA_CUESHEET_INDEX_NUMBER_LEN))
1840 if(!FLAC__bitreader_skip_bits_no_crc(decoder->private_->input, FLAC__STREAM_METADATA_CUESHEET_INDEX_RESERVED_LEN))
1850 FLAC__bool read_metadata_picture_(FLAC__StreamDecoder *decoder, FLAC__StreamMetadata_Picture *obj)
1854 FLAC__ASSERT(FLAC__bitreader_is_consumed_byte_aligned(decoder->private_->input));
1857 if(!FLAC__bitreader_read_raw_uint32(decoder->private_->input, &x, FLAC__STREAM_METADATA_PICTURE_TYPE_LEN))
1862 if(!FLAC__bitreader_read_raw_uint32(decoder->private_->input, &x, FLAC__STREAM_METADATA_PICTURE_MIME_TYPE_LENGTH_LEN))
1865 decoder->protected_->state = FLAC__STREAM_DECODER_MEMORY_ALLOCATION_ERROR;
1869 if(!FLAC__bitreader_read_byte_block_aligned_no_crc(decoder->private_->input, (FLAC__byte*)obj->mime_type, x))
1875 if(!FLAC__bitreader_read_raw_uint32(decoder->private_->input, &x, FLAC__STREAM_METADATA_PICTURE_DESCRIPTION_LENGTH_LEN))
1878 decoder->protected_->state = FLAC__STREAM_DECODER_MEMORY_ALLOCATION_ERROR;
1882 if(!FLAC__bitreader_read_byte_block_aligned_no_crc(decoder->private_->input, obj->description, x))
1888 if(!FLAC__bitreader_read_raw_uint32(decoder->private_->input, &obj->width, FLAC__STREAM_METADATA_PICTURE_WIDTH_LEN))
1892 if(!FLAC__bitreader_read_raw_uint32(decoder->private_->input, &obj->height, FLAC__STREAM_METADATA_PICTURE_HEIGHT_LEN))
1896 if(!FLAC__bitreader_read_raw_uint32(decoder->private_->input, &obj->depth, FLAC__STREAM_METADATA_PICTURE_DEPTH_LEN))
1900 if(!FLAC__bitreader_read_raw_uint32(decoder->private_->input, &obj->colors, FLAC__STREAM_METADATA_PICTURE_COLORS_LEN))
1904 if(!FLAC__bitreader_read_raw_uint32(decoder->private_->input, &(obj->data_length), FLAC__STREAM_METADATA_PICTURE_DATA_LENGTH_LEN))
1907 decoder->protected_->state = FLAC__STREAM_DECODER_MEMORY_ALLOCATION_ERROR;
1911 if(!FLAC__bitreader_read_byte_block_aligned_no_crc(decoder->private_->input, obj->data, obj->data_length))
1918 FLAC__bool skip_id3v2_tag_(FLAC__StreamDecoder *decoder)
1924 if(!FLAC__bitreader_read_raw_uint32(decoder->private_->input, &x, 24))
1929 if(!FLAC__bitreader_read_raw_uint32(decoder->private_->input, &x, 8))
1935 if(!FLAC__bitreader_skip_byte_block_aligned_no_crc(decoder->private_->input, skip))
1940 FLAC__bool frame_sync_(FLAC__StreamDecoder *decoder)
1947 if(FLAC__stream_decoder_get_total_samples(decoder) > 0) {
1948 if(decoder->private_->samples_decoded >= FLAC__stream_decoder_get_total_samples(decoder)) {
1949 decoder->protected_->state = FLAC__STREAM_DECODER_END_OF_STREAM;
1955 if(!FLAC__bitreader_is_consumed_byte_aligned(decoder->private_->input)) {
1956 if(!FLAC__bitreader_read_raw_uint32(decoder->private_->input, &x, FLAC__bitreader_bits_left_for_byte_alignment(decoder->private_->input)))
1961 if(decoder->private_->cached) {
1962 x = (FLAC__uint32)decoder->private_->lookahead;
1963 decoder->private_->cached = false;
1966 if(!FLAC__bitreader_read_raw_uint32(decoder->private_->input, &x, 8))
1970 decoder->private_->header_warmup[0] = (FLAC__byte)x;
1971 if(!FLAC__bitreader_read_raw_uint32(decoder->private_->input, &x, 8))
1977 decoder->private_->lookahead = (FLAC__byte)x;
1978 decoder->private_->cached = true;
1981 decoder->private_->header_warmup[1] = (FLAC__byte)x;
1982 decoder->protected_->state = FLAC__STREAM_DECODER_READ_FRAME;
1987 send_error_to_client_(decoder, FLAC__STREAM_DECODER_ERROR_STATUS_LOST_SYNC);
1995 FLAC__bool read_frame_(FLAC__StreamDecoder *decoder, FLAC__bool *got_a_frame, FLAC__bool do_full_decode)
2007 frame_crc = FLAC__CRC16_UPDATE(decoder->private_->header_warmup[0], frame_crc);
2008 frame_crc = FLAC__CRC16_UPDATE(decoder->private_->header_warmup[1], frame_crc);
2009 FLAC__bitreader_reset_read_crc16(decoder->private_->input, (FLAC__uint16)frame_crc);
2011 if(!read_frame_header_(decoder))
2013 if(decoder->protected_->state == FLAC__STREAM_DECODER_SEARCH_FOR_FRAME_SYNC) /* means we didn't sync on a valid header */
2015 if(!allocate_output_(decoder, decoder->private_->frame.header.blocksize, decoder->private_->frame.header.channels))
2017 for(channel = 0; channel < decoder->private_->frame.header.channels; channel++) {
2021 unsigned bps = decoder->private_->frame.header.bits_per_sample;
2022 switch(decoder->private_->frame.header.channel_assignment) {
2027 FLAC__ASSERT(decoder->private_->frame.header.channels == 2);
2032 FLAC__ASSERT(decoder->private_->frame.header.channels == 2);
2037 FLAC__ASSERT(decoder->private_->frame.header.channels == 2);
2047 if(!read_subframe_(decoder, channel, bps, do_full_decode))
2049 if(decoder->protected_->state == FLAC__STREAM_DECODER_SEARCH_FOR_FRAME_SYNC) /* means bad sync or got corruption */
2052 if(!read_zero_padding_(decoder))
2054 if(decoder->protected_->state == FLAC__STREAM_DECODER_SEARCH_FOR_FRAME_SYNC) /* means bad sync or got corruption (i.e. "zero bits" were not all zeroes) */
2060 frame_crc = FLAC__bitreader_get_read_crc16(decoder->private_->input);
2061 if(!FLAC__bitreader_read_raw_uint32(decoder->private_->input, &x, FLAC__FRAME_FOOTER_CRC_LEN))
2066 switch(decoder->private_->frame.header.channel_assignment) {
2071 FLAC__ASSERT(decoder->private_->frame.header.channels == 2);
2072 for(i = 0; i < decoder->private_->frame.header.blocksize; i++)
2073 decoder->private_->output[1][i] = decoder->private_->output[0][i] - decoder->private_->output[1][i];
2076 FLAC__ASSERT(decoder->private_->frame.header.channels == 2);
2077 for(i = 0; i < decoder->private_->frame.header.blocksize; i++)
2078 decoder->private_->output[0][i] += decoder->private_->output[1][i];
2081 FLAC__ASSERT(decoder->private_->frame.header.channels == 2);
2082 for(i = 0; i < decoder->private_->frame.header.blocksize; i++) {
2084 mid = decoder->private_->output[0][i];
2085 side = decoder->private_->output[1][i];
2088 decoder->private_->output[0][i] = (mid + side) >> 1;
2089 decoder->private_->output[1][i] = (mid - side) >> 1;
2092 mid = (decoder->private_->output[0][i] << 1) | (decoder->private_->output[1][i] & 1); /* i.e. if 'side' is odd... */
2093 decoder->private_->output[0][i] = (mid + decoder->private_->output[1][i]) >> 1;
2094 decoder->private_->output[1][i] = (mid - decoder->private_->output[1][i]) >> 1;
2106 send_error_to_client_(decoder, FLAC__STREAM_DECODER_ERROR_STATUS_FRAME_CRC_MISMATCH);
2108 for(channel = 0; channel < decoder->private_->frame.header.channels; channel++) {
2109 memset(decoder->private_->output[channel], 0, sizeof(FLAC__int32) * decoder->private_->frame.header.blocksize);
2117 if(decoder->private_->next_fixed_block_size)
2118 decoder->private_->fixed_block_size = decoder->private_->next_fixed_block_size;
2120 /* put the latest values into the public section of the decoder instance */
2121 decoder->protected_->channels = decoder->private_->frame.header.channels;
2122 decoder->protected_->channel_assignment = decoder->private_->frame.header.channel_assignment;
2123 decoder->protected_->bits_per_sample = decoder->private_->frame.header.bits_per_sample;
2124 decoder->protected_->sample_rate = decoder->private_->frame.header.sample_rate;
2125 decoder->protected_->blocksize = decoder->private_->frame.header.blocksize;
2127 FLAC__ASSERT(decoder->private_->frame.header.number_type == FLAC__FRAME_NUMBER_TYPE_SAMPLE_NUMBER);
2128 decoder->private_->samples_decoded = decoder->private_->frame.header.number.sample_number + decoder->private_->frame.header.blocksize;
2132 if(write_audio_frame_to_client_(decoder, &decoder->private_->frame, (const FLAC__int32 * const *)decoder->private_->output) != FLAC__STREAM_DECODER_WRITE_STATUS_CONTINUE)
2136 decoder->protected_->state = FLAC__STREAM_DECODER_SEARCH_FOR_FRAME_SYNC;
2140 FLAC__bool read_frame_header_(FLAC__StreamDecoder *decoder)
2149 FLAC__ASSERT(FLAC__bitreader_is_consumed_byte_aligned(decoder->private_->input));
2152 raw_header[0] = decoder->private_->header_warmup[0];
2153 raw_header[1] = decoder->private_->header_warmup[1];
2183 if(!FLAC__bitreader_read_raw_uint32(decoder->private_->input, &x, 8))
2187 decoder->private_->lookahead = (FLAC__byte)x;
2188 decoder->private_->cached = true;
2189 send_error_to_client_(decoder, FLAC__STREAM_DECODER_ERROR_STATUS_BAD_HEADER);
2190 decoder->protected_->state = FLAC__STREAM_DECODER_SEARCH_FOR_FRAME_SYNC;
2201 decoder->private_->frame.header.blocksize = 192;
2207 decoder->private_->frame.header.blocksize = 576 << (x-2);
2221 decoder->private_->frame.header.blocksize = 256 << (x-8);
2230 if(decoder->private_->has_stream_info)
2231 decoder->private_->frame.header.sample_rate = decoder->private_->stream_info.data.stream_info.sample_rate;
2236 decoder->private_->frame.header.sample_rate = 88200;
2239 decoder->private_->frame.header.sample_rate = 176400;
2242 decoder->private_->frame.header.sample_rate = 192000;
2245 decoder->private_->frame.header.sample_rate = 8000;
2248 decoder->private_->frame.header.sample_rate = 16000;
2251 decoder->private_->frame.header.sample_rate = 22050;
2254 decoder->private_->frame.header.sample_rate = 24000;
2257 decoder->private_->frame.header.sample_rate = 32000;
2260 decoder->private_->frame.header.sample_rate = 44100;
2263 decoder->private_->frame.header.sample_rate = 48000;
2266 decoder->private_->frame.header.sample_rate = 96000;
2274 send_error_to_client_(decoder, FLAC__STREAM_DECODER_ERROR_STATUS_BAD_HEADER);
2275 decoder->protected_->state = FLAC__STREAM_DECODER_SEARCH_FOR_FRAME_SYNC;
2283 decoder->private_->frame.header.channels = 2;
2286 decoder->private_->frame.header.channel_assignment = FLAC__CHANNEL_ASSIGNMENT_LEFT_SIDE;
2289 decoder->private_->frame.header.channel_assignment = FLAC__CHANNEL_ASSIGNMENT_RIGHT_SIDE;
2292 decoder->private_->frame.header.channel_assignment = FLAC__CHANNEL_ASSIGNMENT_MID_SIDE;
2300 decoder->private_->frame.header.channels = (unsigned)x + 1;
2301 decoder->private_->frame.header.channel_assignment = FLAC__CHANNEL_ASSIGNMENT_INDEPENDENT;
2306 if(decoder->private_->has_stream_info)
2307 decoder->private_->frame.header.bits_per_sample = decoder->private_->stream_info.data.stream_info.bits_per_sample;
2312 decoder->private_->frame.header.bits_per_sample = 8;
2315 decoder->private_->frame.header.bits_per_sample = 12;
2318 decoder->private_->frame.header.bits_per_sample = 16;
2321 decoder->private_->frame.header.bits_per_sample = 20;
2324 decoder->private_->frame.header.bits_per_sample = 24;
2343 (decoder->private_->has_stream_info && decoder->private_->stream_info.data.stream_info.min_blocksize != decoder->private_->stream_info.data.stream_info.max_blocksize)
2345 if(!FLAC__bitreader_read_utf8_uint64(decoder->private_->input, &xx, raw_header, &raw_header_len))
2348 decoder->private_->lookahead = raw_header[raw_header_len-1]; /* back up as much as we can */
2349 decoder->private_->cached = true;
2350 send_error_to_client_(decoder, FLAC__STREAM_DECODER_ERROR_STATUS_BAD_HEADER);
2351 decoder->protected_->state = FLAC__STREAM_DECODER_SEARCH_FOR_FRAME_SYNC;
2354 decoder->private_->frame.header.number_type = FLAC__FRAME_NUMBER_TYPE_SAMPLE_NUMBER;
2355 decoder->private_->frame.header.number.sample_number = xx;
2358 if(!FLAC__bitreader_read_utf8_uint32(decoder->private_->input, &x, raw_header, &raw_header_len))
2361 decoder->private_->lookahead = raw_header[raw_header_len-1]; /* back up as much as we can */
2362 decoder->private_->cached = true;
2363 send_error_to_client_(decoder, FLAC__STREAM_DECODER_ERROR_STATUS_BAD_HEADER);
2364 decoder->protected_->state = FLAC__STREAM_DECODER_SEARCH_FOR_FRAME_SYNC;
2367 decoder->private_->frame.header.number_type = FLAC__FRAME_NUMBER_TYPE_FRAME_NUMBER;
2368 decoder->private_->frame.header.number.frame_number = x;
2372 if(!FLAC__bitreader_read_raw_uint32(decoder->private_->input, &x, 8))
2377 if(!FLAC__bitreader_read_raw_uint32(decoder->private_->input, &_x, 8))
2382 decoder->private_->frame.header.blocksize = x+1;
2386 if(!FLAC__bitreader_read_raw_uint32(decoder->private_->input, &x, 8))
2391 if(!FLAC__bitreader_read_raw_uint32(decoder->private_->input, &_x, 8))
2397 decoder->private_->frame.header.sample_rate = x*1000;
2399 decoder->private_->frame.header.sample_rate = x;
2401 decoder->private_->frame.header.sample_rate = x*10;
2405 if(!FLAC__bitreader_read_raw_uint32(decoder->private_->input, &x, 8))
2410 send_error_to_client_(decoder, FLAC__STREAM_DECODER_ERROR_STATUS_BAD_HEADER);
2411 decoder->protected_->state = FLAC__STREAM_DECODER_SEARCH_FOR_FRAME_SYNC;
2416 decoder->private_->next_fixed_block_size = 0;
2417 if(decoder->private_->frame.header.number_type == FLAC__FRAME_NUMBER_TYPE_FRAME_NUMBER) {
2418 x = decoder->private_->frame.header.number.frame_number;
2419 decoder->private_->frame.header.number_type = FLAC__FRAME_NUMBER_TYPE_SAMPLE_NUMBER;
2420 if(decoder->private_->fixed_block_size)
2421 decoder->private_->frame.header.number.sample_number = (FLAC__uint64)decoder->private_->fixed_block_size * (FLAC__uint64)x;
2422 else if(decoder->private_->has_stream_info) {
2423 if(decoder->private_->stream_info.data.stream_info.min_blocksize == decoder->private_->stream_info.data.stream_info.max_blocksize) {
2424 decoder->private_->frame.header.number.sample_number = (FLAC__uint64)decoder->private_->stream_info.data.stream_info.min_blocksize * (FLAC__uint64)x;
2425 decoder->private_->next_fixed_block_size = decoder->private_->stream_info.data.stream_info.max_blocksize;
2431 decoder->private_->frame.header.number.sample_number = 0;
2432 decoder->private_->next_fixed_block_size = decoder->private_->frame.header.blocksize;
2436 decoder->private_->frame.header.number.sample_number = (FLAC__uint64)decoder->private_->frame.header.blocksize * (FLAC__uint64)x;
2441 send_error_to_client_(decoder, FLAC__STREAM_DECODER_ERROR_STATUS_UNPARSEABLE_STREAM);
2442 decoder->protected_->state = FLAC__STREAM_DECODER_SEARCH_FOR_FRAME_SYNC;
2449 FLAC__bool read_subframe_(FLAC__StreamDecoder *decoder, unsigned channel, unsigned bps, FLAC__bool do_full_decode)
2455 if(!FLAC__bitreader_read_raw_uint32(decoder->private_->input, &x, 8)) /* MAGIC NUMBER */
2463 if(!FLAC__bitreader_read_unary_unsigned(decoder->private_->input, &u))
2465 decoder->private_->frame.subframes[channel].wasted_bits = u+1;
2466 bps -= decoder->private_->frame.subframes[channel].wasted_bits;
2469 decoder->private_->frame.subframes[channel].wasted_bits = 0;
2475 send_error_to_client_(decoder, FLAC__STREAM_DECODER_ERROR_STATUS_LOST_SYNC);
2476 decoder->protected_->state = FLAC__STREAM_DECODER_SEARCH_FOR_FRAME_SYNC;
2480 if(!read_subframe_constant_(decoder, channel, bps, do_full_decode))
2484 if(!read_subframe_verbatim_(decoder, channel, bps, do_full_decode))
2488 send_error_to_client_(decoder, FLAC__STREAM_DECODER_ERROR_STATUS_UNPARSEABLE_STREAM);
2489 decoder->protected_->state = FLAC__STREAM_DECODER_SEARCH_FOR_FRAME_SYNC;
2493 if(!read_subframe_fixed_(decoder, channel, bps, (x>>1)&7, do_full_decode))
2495 if(decoder->protected_->state == FLAC__STREAM_DECODER_SEARCH_FOR_FRAME_SYNC) /* means bad sync or got corruption */
2499 send_error_to_client_(decoder, FLAC__STREAM_DECODER_ERROR_STATUS_UNPARSEABLE_STREAM);
2500 decoder->protected_->state = FLAC__STREAM_DECODER_SEARCH_FOR_FRAME_SYNC;
2504 if(!read_subframe_lpc_(decoder, channel, bps, ((x>>1)&31)+1, do_full_decode))
2506 if(decoder->protected_->state == FLAC__STREAM_DECODER_SEARCH_FOR_FRAME_SYNC) /* means bad sync or got corruption */
2511 x = decoder->private_->frame.subframes[channel].wasted_bits;
2512 for(i = 0; i < decoder->private_->frame.header.blocksize; i++)
2513 decoder->private_->output[channel][i] <<= x;
2519 FLAC__bool read_subframe_constant_(FLAC__StreamDecoder *decoder, unsigned channel, unsigned bps, FLAC__bool do_full_decode)
2521 FLAC__Subframe_Constant *subframe = &decoder->private_->frame.subframes[channel].data.constant;
2524 FLAC__int32 *output = decoder->private_->output[channel];
2526 decoder->private_->frame.subframes[channel].type = FLAC__SUBFRAME_TYPE_CONSTANT;
2528 if(!FLAC__bitreader_read_raw_int32(decoder->private_->input, &x, bps))
2535 for(i = 0; i < decoder->private_->frame.header.blocksize; i++)
2542 FLAC__bool read_subframe_fixed_(FLAC__StreamDecoder *decoder, unsigned channel, unsigned bps, const unsigned order, FLAC__bool do_full_decode)
2544 FLAC__Subframe_Fixed *subframe = &decoder->private_->frame.subframes[channel].data.fixed;
2549 decoder->private_->frame.subframes[channel].type = FLAC__SUBFRAME_TYPE_FIXED;
2551 subframe->residual = decoder->private_->residual[channel];
2556 if(!FLAC__bitreader_read_raw_int32(decoder->private_->input, &i32, bps))
2562 if(!FLAC__bitreader_read_raw_uint32(decoder->private_->input, &u32, FLAC__ENTROPY_CODING_METHOD_TYPE_LEN))
2568 if(!FLAC__bitreader_read_raw_uint32(decoder->private_->input, &u32, FLAC__ENTROPY_CODING_METHOD_PARTITIONED_RICE_ORDER_LEN))
2571 subframe->entropy_coding_method.data.partitioned_rice.contents = &decoder->private_->partitioned_rice_contents[channel];
2574 send_error_to_client_(decoder, FLAC__STREAM_DECODER_ERROR_STATUS_UNPARSEABLE_STREAM);
2575 decoder->protected_->state = FLAC__STREAM_DECODER_SEARCH_FOR_FRAME_SYNC;
2583 if(!read_residual_partitioned_rice_(decoder, order, subframe->entropy_coding_method.data.partitioned_rice.order, &decoder->private_->partitioned_rice_contents[channel], decoder->private_->residual[channel], /*is_extended=*/subframe->entropy_coding_method.type == FLAC__ENTROPY_CODING_METHOD_PARTITIONED_RICE2))
2592 memcpy(decoder->private_->output[channel], subframe->warmup, sizeof(FLAC__int32) * order);
2593 FLAC__fixed_restore_signal(decoder->private_->residual[channel], decoder->private_->frame.header.blocksize-order, order, decoder->private_->output[channel]+order);
2599 FLAC__bool read_subframe_lpc_(FLAC__StreamDecoder *decoder, unsigned channel, unsigned bps, const unsigned order, FLAC__bool do_full_decode)
2601 FLAC__Subframe_LPC *subframe = &decoder->private_->frame.subframes[channel].data.lpc;
2606 decoder->private_->frame.subframes[channel].type = FLAC__SUBFRAME_TYPE_LPC;
2608 subframe->residual = decoder->private_->residual[channel];
2613 if(!FLAC__bitreader_read_raw_int32(decoder->private_->input, &i32, bps))
2619 if(!FLAC__bitreader_read_raw_uint32(decoder->private_->input, &u32, FLAC__SUBFRAME_LPC_QLP_COEFF_PRECISION_LEN))
2622 send_error_to_client_(decoder, FLAC__STREAM_DECODER_ERROR_STATUS_LOST_SYNC);
2623 decoder->protected_->state = FLAC__STREAM_DECODER_SEARCH_FOR_FRAME_SYNC;
2629 if(!FLAC__bitreader_read_raw_int32(decoder->private_->input, &i32, FLAC__SUBFRAME_LPC_QLP_SHIFT_LEN))
2635 if(!FLAC__bitreader_read_raw_int32(decoder->private_->input, &i32, subframe->qlp_coeff_precision))
2641 if(!FLAC__bitreader_read_raw_uint32(decoder->private_->input, &u32, FLAC__ENTROPY_CODING_METHOD_TYPE_LEN))
2647 if(!FLAC__bitreader_read_raw_uint32(decoder->private_->input, &u32, FLAC__ENTROPY_CODING_METHOD_PARTITIONED_RICE_ORDER_LEN))
2650 subframe->entropy_coding_method.data.partitioned_rice.contents = &decoder->private_->partitioned_rice_contents[channel];
2653 send_error_to_client_(decoder, FLAC__STREAM_DECODER_ERROR_STATUS_UNPARSEABLE_STREAM);
2654 decoder->protected_->state = FLAC__STREAM_DECODER_SEARCH_FOR_FRAME_SYNC;
2662 if(!read_residual_partitioned_rice_(decoder, order, subframe->entropy_coding_method.data.partitioned_rice.order, &decoder->private_->partitioned_rice_contents[channel], decoder->private_->residual[channel], /*is_extended=*/subframe->entropy_coding_method.type == FLAC__ENTROPY_CODING_METHOD_PARTITIONED_RICE2))
2671 memcpy(decoder->private_->output[channel], subframe->warmup, sizeof(FLAC__int32) * order);
2678 decoder->private_->local_lpc_restore_signal_16bit_order8(decoder->private_->residual[channel], decoder->private_->frame.header.blocksize-order, subframe->qlp_coeff, order, subframe->quantization_level, decoder->private_->output[channel]+order);
2680 decoder->private_->local_lpc_restore_signal_16bit(decoder->private_->residual[channel], decoder->private_->frame.header.blocksize-order, subframe->qlp_coeff, order, subframe->quantization_level, decoder->private_->output[channel]+order);
2683 decoder->private_->local_lpc_restore_signal(decoder->private_->residual[channel], decoder->private_->frame.header.blocksize-order, subframe->qlp_coeff, order, subframe->quantization_level, decoder->private_->output[channel]+order);
2685 decoder->private_->local_lpc_restore_signal_64bit(decoder->private_->residual[channel], decoder->private_->frame.header.blocksize-order, subframe->qlp_coeff, order, subframe->quantization_level, decoder->private_->output[channel]+order);
2691 FLAC__bool read_subframe_verbatim_(FLAC__StreamDecoder *decoder, unsigned channel, unsigned bps, FLAC__bool do_full_decode)
2693 FLAC__Subframe_Verbatim *subframe = &decoder->private_->frame.subframes[channel].data.verbatim;
2694 FLAC__int32 x, *residual = decoder->private_->residual[channel];
2697 decoder->private_->frame.subframes[channel].type = FLAC__SUBFRAME_TYPE_VERBATIM;
2701 for(i = 0; i < decoder->private_->frame.header.blocksize; i++) {
2702 if(!FLAC__bitreader_read_raw_int32(decoder->private_->input, &x, bps))
2709 memcpy(decoder->private_->output[channel], subframe->data, sizeof(FLAC__int32) * decoder->private_->frame.header.blocksize);
2714 FLAC__bool read_residual_partitioned_rice_(FLAC__StreamDecoder *decoder, unsigned predictor_order, unsigned partition_order, FLAC__EntropyCodingMethod_PartitionedRiceContents *partitioned_rice_contents, FLAC__int32 *residual, FLAC__bool is_extended)
2720 const unsigned partition_samples = partition_order > 0? decoder->private_->frame.header.blocksize >> partition_order : decoder->private_->frame.header.blocksize - predictor_order;
2726 if(decoder->private_->frame.header.blocksize < predictor_order) {
2727 send_error_to_client_(decoder, FLAC__STREAM_DECODER_ERROR_STATUS_LOST_SYNC);
2728 decoder->protected_->state = FLAC__STREAM_DECODER_SEARCH_FOR_FRAME_SYNC;
2734 send_error_to_client_(decoder, FLAC__STREAM_DECODER_ERROR_STATUS_LOST_SYNC);
2735 decoder->protected_->state = FLAC__STREAM_DECODER_SEARCH_FOR_FRAME_SYNC;
2741 decoder->protected_->state = FLAC__STREAM_DECODER_MEMORY_ALLOCATION_ERROR;
2747 if(!FLAC__bitreader_read_raw_uint32(decoder->private_->input, &rice_parameter, plen))
2753 if(!decoder->private_->local_bitreader_read_rice_signed_block(decoder->private_->input, residual + sample, u, rice_parameter))
2758 if(!FLAC__bitreader_read_raw_uint32(decoder->private_->input, &rice_parameter, FLAC__ENTROPY_CODING_METHOD_PARTITIONED_RICE_RAW_LEN))
2762 if(!FLAC__bitreader_read_raw_int32(decoder->private_->input, &i, rice_parameter))
2772 FLAC__bool read_zero_padding_(FLAC__StreamDecoder *decoder)
2774 if(!FLAC__bitreader_is_consumed_byte_aligned(decoder->private_->input)) {
2776 if(!FLAC__bitreader_read_raw_uint32(decoder->private_->input, &zero, FLAC__bitreader_bits_left_for_byte_alignment(decoder->private_->input)))
2779 send_error_to_client_(decoder, FLAC__STREAM_DECODER_ERROR_STATUS_LOST_SYNC);
2780 decoder->protected_->state = FLAC__STREAM_DECODER_SEARCH_FOR_FRAME_SYNC;
2788 FLAC__StreamDecoder *decoder = (FLAC__StreamDecoder *)client_data;
2793 !decoder->private_->is_ogg &&
2795 decoder->private_->eof_callback && decoder->private_->eof_callback(decoder, decoder->private_->client_data)
2798 decoder->protected_->state = FLAC__STREAM_DECODER_END_OF_STREAM;
2812 if(decoder->private_->is_seeking && decoder->private_->unparseable_frame_count > 20) {
2813 decoder->protected_->state = FLAC__STREAM_DECODER_ABORTED;
2819 decoder->private_->is_ogg?
2820 read_callback_ogg_aspect_(decoder, buffer, bytes) :
2822 decoder->private_->read_callback(decoder, buffer, bytes, decoder->private_->client_data)
2825 decoder->protected_->state = FLAC__STREAM_DECODER_ABORTED;
2834 !decoder->private_->is_ogg &&
2836 decoder->private_->eof_callback && decoder->private_->eof_callback(decoder, decoder->private_->client_data)
2839 decoder->protected_->state = FLAC__STREAM_DECODER_END_OF_STREAM;
2851 decoder->protected_->state = FLAC__STREAM_DECODER_ABORTED;
2855 * for Ogg FLAC. This is because the ogg decoder aspect can lose sync
2860 * So to keep the decoder from stopping at this point we gate the call
2861 * to the eof_callback and let the Ogg decoder aspect set the
2867 FLAC__StreamDecoderReadStatus read_callback_ogg_aspect_(const FLAC__StreamDecoder *decoder, FLAC__byte buffer[], size_t *bytes)
2869 switch(FLAC__ogg_decoder_aspect_read_callback_wrapper(&decoder->protected_->ogg_decoder_aspect, buffer, bytes, read_callback_proxy_, decoder, decoder->private_->client_data)) {
2874 * FLAC decoder catch the error
2895 FLAC__StreamDecoder *decoder = (FLAC__StreamDecoder*)void_decoder;
2897 switch(decoder->private_->read_callback(decoder, buffer, bytes, client_data)) {
2912 FLAC__StreamDecoderWriteStatus write_audio_frame_to_client_(FLAC__StreamDecoder *decoder, const FLAC__Frame *frame, const FLAC__int32 * const buffer[])
2914 if(decoder->private_->is_seeking) {
2917 FLAC__uint64 target_sample = decoder->private_->target_sample;
2922 decoder->private_->got_a_frame = true;
2924 decoder->private_->last_frame = *frame; /* save the frame */
2928 decoder->private_->is_seeking = false;
2935 decoder->private_->last_frame.header.blocksize -= delta;
2936 decoder->private_->last_frame.header.number.sample_number += (FLAC__uint64)delta;
2938 return decoder->private_->write_callback(decoder, &decoder->private_->last_frame, newbuffer, decoder->private_->client_data);
2942 return decoder->private_->write_callback(decoder, frame, buffer, decoder->private_->client_data);
2954 if(!decoder->private_->has_stream_info)
2955 decoder->private_->do_md5_checking = false;
2956 if(decoder->private_->do_md5_checking) {
2957 if(!FLAC__MD5Accumulate(&decoder->private_->md5context, buffer, frame->header.channels, frame->header.blocksize, (frame->header.bits_per_sample+7) / 8))
2960 return decoder->private_->write_callback(decoder, frame, buffer, decoder->private_->client_data);
2964 void send_error_to_client_(const FLAC__StreamDecoder *decoder, FLAC__StreamDecoderErrorStatus status)
2966 if(!decoder->private_->is_seeking)
2967 decoder->private_->error_callback(decoder, status, decoder->private_->client_data);
2969 decoder->private_->unparseable_frame_count++;
2972 FLAC__bool seek_to_absolute_sample_(FLAC__StreamDecoder *decoder, FLAC__uint64 stream_length, FLAC__uint64 target_sample)
2974 FLAC__uint64 first_frame_offset = decoder->private_->first_frame_offset, lower_bound, upper_bound, lower_bound_sample, upper_bound_sample, this_frame_sample;
2979 const FLAC__uint64 total_samples = FLAC__stream_decoder_get_total_samples(decoder);
2980 const unsigned min_blocksize = decoder->private_->stream_info.data.stream_info.min_blocksize;
2981 const unsigned max_blocksize = decoder->private_->stream_info.data.stream_info.max_blocksize;
2982 const unsigned max_framesize = decoder->private_->stream_info.data.stream_info.max_framesize;
2983 const unsigned min_framesize = decoder->private_->stream_info.data.stream_info.min_framesize;
2985 unsigned channels = FLAC__stream_decoder_get_channels(decoder);
2986 unsigned bps = FLAC__stream_decoder_get_bits_per_sample(decoder);
2987 const FLAC__StreamMetadata_SeekTable *seek_table = decoder->private_->has_seek_table? &decoder->private_->seek_table.data.seek_table : 0;
2991 channels = decoder->private_->stream_info.data.stream_info.channels;
2993 bps = decoder->private_->stream_info.data.stream_info.bits_per_sample;
3087 decoder->private_->target_sample = target_sample;
3091 decoder->protected_->state = FLAC__STREAM_DECODER_SEEK_ERROR;
3112 if(decoder->private_->seek_callback(decoder, (FLAC__uint64)pos, decoder->private_->client_data) != FLAC__STREAM_DECODER_SEEK_STATUS_OK) {
3113 decoder->protected_->state = FLAC__STREAM_DECODER_SEEK_ERROR;
3116 if(!FLAC__stream_decoder_flush(decoder)) {
3126 decoder->private_->unparseable_frame_count = 0;
3127 if(!FLAC__stream_decoder_process_single(decoder)) {
3128 decoder->protected_->state = FLAC__STREAM_DECODER_SEEK_ERROR;
3132 /* actually, we could have got_a_frame if our decoder is at FLAC__STREAM_DECODER_END_OF_STREAM so we need to check for that also */
3135 if(decoder->protected_->state != FLAC__SEEKABLE_STREAM_DECODER_SEEKING && decoder->protected_->state != FLAC__STREAM_DECODER_END_OF_STREAM)
3138 if(!decoder->private_->is_seeking)
3141 FLAC__ASSERT(decoder->private_->last_frame.header.number_type == FLAC__FRAME_NUMBER_TYPE_SAMPLE_NUMBER);
3142 this_frame_sample = decoder->private_->last_frame.header.number.sample_number;
3144 if (0 == decoder->private_->samples_decoded || (this_frame_sample + decoder->private_->last_frame.header.blocksize >= upper_bound_sample && !first_seek)) {
3147 decoder->protected_->state = FLAC__STREAM_DECODER_SEEK_ERROR;
3159 decoder->protected_->state = FLAC__STREAM_DECODER_SEEK_ERROR;
3165 upper_bound_sample = this_frame_sample + decoder->private_->last_frame.header.blocksize;
3167 if(!FLAC__stream_decoder_get_decode_position(decoder, &upper_bound)) {
3168 decoder->protected_->state = FLAC__STREAM_DECODER_SEEK_ERROR;
3174 lower_bound_sample = this_frame_sample + decoder->private_->last_frame.header.blocksize;
3175 if(!FLAC__stream_decoder_get_decode_position(decoder, &lower_bound)) {
3176 decoder->protected_->state = FLAC__STREAM_DECODER_SEEK_ERROR;
3187 FLAC__bool seek_to_absolute_sample_ogg_(FLAC__StreamDecoder *decoder, FLAC__uint64 stream_length, FLAC__uint64 target_sample)
3190 FLAC__uint64 left_sample = 0, right_sample = FLAC__stream_decoder_get_total_samples(decoder);
3216 decoder->private_->target_sample = target_sample;
3245 if(decoder->private_->seek_callback((FLAC__StreamDecoder*)decoder, (FLAC__uint64)pos, decoder->private_->client_data) != FLAC__STREAM_DECODER_SEEK_STATUS_OK) {
3246 decoder->protected_->state = FLAC__STREAM_DECODER_SEEK_ERROR;
3249 if(!FLAC__stream_decoder_flush(decoder)) {
3258 decoder->private_->got_a_frame = false;
3259 if(!FLAC__stream_decoder_process_single(decoder)) {
3260 decoder->protected_->state = FLAC__STREAM_DECODER_SEEK_ERROR;
3263 if(!decoder->private_->got_a_frame) {
3276 decoder->protected_->state = FLAC__STREAM_DECODER_SEEK_ERROR;
3281 else if(!decoder->private_->is_seeking) {
3285 this_frame_sample = decoder->private_->last_frame.header.number.sample_number;
3286 FLAC__ASSERT(decoder->private_->last_frame.header.number_type == FLAC__FRAME_NUMBER_TYPE_SAMPLE_NUMBER);
3301 decoder->protected_->state = FLAC__STREAM_DECODER_SEEK_ERROR;
3310 decoder->protected_->state = FLAC__STREAM_DECODER_SEEK_ERROR;
3323 FLAC__StreamDecoderReadStatus file_read_callback_(const FLAC__StreamDecoder *decoder, FLAC__byte buffer[], size_t *bytes, void *client_data)
3328 *bytes = fread(buffer, sizeof(FLAC__byte), *bytes, decoder->private_->file);
3329 if(ferror(decoder->private_->file))
3340 FLAC__StreamDecoderSeekStatus file_seek_callback_(const FLAC__StreamDecoder *decoder, FLAC__uint64 absolute_byte_offset, void *client_data)
3344 if(decoder->private_->file == stdin)
3346 else if(fseeko(decoder->private_->file, (off_t)absolute_byte_offset, SEEK_SET) < 0)
3352 FLAC__StreamDecoderTellStatus file_tell_callback_(const FLAC__StreamDecoder *decoder, FLAC__uint64 *absolute_byte_offset, void *client_data)
3357 if(decoder->private_->file == stdin)
3359 else if((pos = ftello(decoder->private_->file)) < 0)
3367 FLAC__StreamDecoderLengthStatus file_length_callback_(const FLAC__StreamDecoder *decoder, FLAC__uint64 *stream_length, void *client_data)
3372 if(decoder->private_->file == stdin)
3374 else if(fstat(fileno(decoder->private_->file), &filestats) != 0)
3382 FLAC__bool file_eof_callback_(const FLAC__StreamDecoder *decoder, void *client_data)
3386 return feof(decoder->private_->file)? true : false;