Commit message: None
CVE: CVE-2016-2429
CWE: CWE-119
Vulnerability description: libFLAC/stream_decoder.c in mediaserver in Android 4.x before 4.4.4, 5.0.x before 5.0.2, 5.1.x before 5.1.1, and 6.x before 2016-05-01 does not prevent free operations on uninitialized memory, which allows remote attackers to execute arbitrary code or cause a denial of service (heap memory corruption) via a crafted media file, aka internal bug 27211885.

Project: Android
File: stream_decoder.c

FLAC_API void FLAC__stream_decoder_delete(FLAC__StreamDecoder *decoder)
{
 unsigned i;

 if (decoder == NULL)
 return ;

	FLAC__ASSERT(0 != decoder->protected_);
	FLAC__ASSERT(0 != decoder->private_);
	FLAC__ASSERT(0 != decoder->private_->input);

 (void)FLAC__stream_decoder_finish(decoder);

 if(0 != decoder->private_->metadata_filter_ids)
		free(decoder->private_->metadata_filter_ids);

	FLAC__bitreader_delete(decoder->private_->input);

 for(i = 0; i < FLAC__MAX_CHANNELS; i++)
		FLAC__format_entropy_coding_method_partitioned_rice_contents_clear(&decoder->private_->partitioned_rice_contents[i]);

	free(decoder->private_);
	free(decoder->protected_);
	free(decoder);
}

Project: Android
File: stream_decoder.c

FLAC_API FLAC__bool FLAC__stream_decoder_finish(FLAC__StreamDecoder *decoder)
{
	FLAC__bool md5_failed = false;
 unsigned i;

	FLAC__ASSERT(0 != decoder);
	FLAC__ASSERT(0 != decoder->private_);
	FLAC__ASSERT(0 != decoder->protected_);

 if(decoder->protected_->state == FLAC__STREAM_DECODER_UNINITIALIZED)
 return true;

 /* see the comment in FLAC__stream_decoder_reset() as to why we
	 * always call FLAC__MD5Final()
	 */
	FLAC__MD5Final(decoder->private_->computed_md5sum, &decoder->private_->md5context);

 if(decoder->private_->has_seek_table && 0 != decoder->private_->seek_table.data.seek_table.points) {
		free(decoder->private_->seek_table.data.seek_table.points);
		decoder->private_->seek_table.data.seek_table.points = 0;
		decoder->private_->has_seek_table = false;
 }
	FLAC__bitreader_free(decoder->private_->input);
 for(i = 0; i < FLAC__MAX_CHANNELS; i++) {
 /* WATCHOUT:
		 * FLAC__lpc_restore_signal_asm_ia32_mmx() requires that the
		 * output arrays have a buffer of up to 3 zeroes in front
		 * (at negative indices) for alignment purposes; we use 4
		 * to keep the data well-aligned.
		 */
 if(0 != decoder->private_->output[i]) {
			free(decoder->private_->output[i]-4);
			decoder->private_->output[i] = 0;
 }
 if(0 != decoder->private_->residual_unaligned[i]) {
			free(decoder->private_->residual_unaligned[i]);
			decoder->private_->residual_unaligned[i] = decoder->private_->residual[i] = 0;
 }
 }
	decoder->private_->output_capacity = 0;
	decoder->private_->output_channels = 0;

#if FLAC__HAS_OGG
 if(decoder->private_->is_ogg)
		FLAC__ogg_decoder_aspect_finish(&decoder->protected_->ogg_decoder_aspect);
#endif

 if(0 != decoder->private_->file) {
 if(decoder->private_->file != stdin)
			fclose(decoder->private_->file);
		decoder->private_->file = 0;
 }

 if(decoder->private_->do_md5_checking) {
 if(memcmp(decoder->private_->stream_info.data.stream_info.md5sum, decoder->private_->computed_md5sum, 16))
			md5_failed = true;
 }
	decoder->private_->is_seeking = false;

	set_defaults_(decoder);

	decoder->protected_->state = FLAC__STREAM_DECODER_UNINITIALIZED;

 return !md5_failed;
}

Project: Android
File: stream_decoder.c

FLAC_API unsigned FLAC__stream_decoder_get_bits_per_sample(const FLAC__StreamDecoder *decoder)
{
	FLAC__ASSERT(0 != decoder);
	FLAC__ASSERT(0 != decoder->protected_);
 return decoder->protected_->bits_per_sample;
}

Project: Android
File: stream_decoder.c

FLAC_API unsigned FLAC__stream_decoder_get_blocksize(const FLAC__StreamDecoder *decoder)
{
	FLAC__ASSERT(0 != decoder);
	FLAC__ASSERT(0 != decoder->protected_);
 return decoder->protected_->blocksize;
}

Project: Android
File: stream_decoder.c

FLAC_API FLAC__bool FLAC__stream_decoder_get_decode_position(const FLAC__StreamDecoder *decoder, FLAC__uint64 *position)
{
	FLAC__ASSERT(0 != decoder);
	FLAC__ASSERT(0 != decoder->private_);
	FLAC__ASSERT(0 != position);

#if FLAC__HAS_OGG
 if(decoder->private_->is_ogg)
 return false;
#endif
 if(0 == decoder->private_->tell_callback)
 return false;
 if(decoder->private_->tell_callback(decoder, position, decoder->private_->client_data) != FLAC__STREAM_DECODER_TELL_STATUS_OK)
 return false;
 /* should never happen since all FLAC frames and metadata blocks are byte aligned, but check just in case */
 if(!FLAC__bitreader_is_consumed_byte_aligned(decoder->private_->input))
 return false;
	FLAC__ASSERT(*position >= FLAC__stream_decoder_get_input_bytes_unconsumed(decoder));
 *position -= FLAC__stream_decoder_get_input_bytes_unconsumed(decoder);
 return true;
}

Project: Android
File: stream_decoder.c

FLAC_API FLAC__bool FLAC__stream_decoder_get_md5_checking(const FLAC__StreamDecoder *decoder)
{
	FLAC__ASSERT(0 != decoder);
	FLAC__ASSERT(0 != decoder->protected_);
 return decoder->protected_->md5_checking;
}

Project: Android
File: stream_decoder.c

FLAC_API const char *FLAC__stream_decoder_get_resolved_state_string(const FLAC__StreamDecoder *decoder)
{
 return FLAC__StreamDecoderStateString[decoder->protected_->state];
}

Project: Android
File: stream_decoder.c

FLAC_API unsigned FLAC__stream_decoder_get_sample_rate(const FLAC__StreamDecoder *decoder)
{
	FLAC__ASSERT(0 != decoder);
	FLAC__ASSERT(0 != decoder->protected_);
 return decoder->protected_->sample_rate;
}

Project: Android
File: stream_decoder.c

FLAC_API FLAC__uint64 FLAC__stream_decoder_get_total_samples(const FLAC__StreamDecoder *decoder)
{
	FLAC__ASSERT(0 != decoder);
	FLAC__ASSERT(0 != decoder->protected_);
 return decoder->private_->has_stream_info? decoder->private_->stream_info.data.stream_info.total_samples : 0;
}

Project: Android
File: stream_decoder.c

FLAC_API FLAC__StreamDecoderInitStatus FLAC__stream_decoder_init_FILE(
	FLAC__StreamDecoder *decoder,
 FILE *file,
	FLAC__StreamDecoderWriteCallback write_callback,
	FLAC__StreamDecoderMetadataCallback metadata_callback,
	FLAC__StreamDecoderErrorCallback error_callback,
 void *client_data
)
{
 return init_FILE_internal_(decoder, file, write_callback, metadata_callback, error_callback, client_data, /*is_ogg=*/false);
}

Project: Android
File: stream_decoder.c

FLAC_API FLAC__StreamDecoderInitStatus FLAC__stream_decoder_init_file(
	FLAC__StreamDecoder *decoder,
 const char *filename,
	FLAC__StreamDecoderWriteCallback write_callback,
	FLAC__StreamDecoderMetadataCallback metadata_callback,
	FLAC__StreamDecoderErrorCallback error_callback,
 void *client_data
)
{
 return init_file_internal_(decoder, filename, write_callback, metadata_callback, error_callback, client_data, /*is_ogg=*/false);
}

Project: Android
File: stream_decoder.c

FLAC_API FLAC__StreamDecoderInitStatus FLAC__stream_decoder_init_ogg_FILE(
	FLAC__StreamDecoder *decoder,
 FILE *file,
	FLAC__StreamDecoderWriteCallback write_callback,
	FLAC__StreamDecoderMetadataCallback metadata_callback,
	FLAC__StreamDecoderErrorCallback error_callback,
 void *client_data
)
{
 return init_FILE_internal_(decoder, file, write_callback, metadata_callback, error_callback, client_data, /*is_ogg=*/true);
}

Project: Android
File: stream_decoder.c

FLAC_API FLAC__StreamDecoderInitStatus FLAC__stream_decoder_init_ogg_file(
	FLAC__StreamDecoder *decoder,
 const char *filename,
	FLAC__StreamDecoderWriteCallback write_callback,
	FLAC__StreamDecoderMetadataCallback metadata_callback,
	FLAC__StreamDecoderErrorCallback error_callback,
 void *client_data
)
{
 return init_file_internal_(decoder, filename, write_callback, metadata_callback, error_callback, client_data, /*is_ogg=*/true);
}

Project: Android
File: stream_decoder.c

FLAC_API FLAC__StreamDecoderInitStatus FLAC__stream_decoder_init_ogg_stream(
	FLAC__StreamDecoder *decoder,
	FLAC__StreamDecoderReadCallback read_callback,
	FLAC__StreamDecoderSeekCallback seek_callback,
	FLAC__StreamDecoderTellCallback tell_callback,
	FLAC__StreamDecoderLengthCallback length_callback,
	FLAC__StreamDecoderEofCallback eof_callback,
	FLAC__StreamDecoderWriteCallback write_callback,
	FLAC__StreamDecoderMetadataCallback metadata_callback,
	FLAC__StreamDecoderErrorCallback error_callback,
 void *client_data
)
{
 return init_stream_internal_(
		decoder,
		read_callback,
		seek_callback,
		tell_callback,
		length_callback,
		eof_callback,
		write_callback,
		metadata_callback,
		error_callback,
		client_data,
 /*is_ogg=*/true
 );
}

Project: Android
File: stream_decoder.c

FLAC_API FLAC__StreamDecoderInitStatus FLAC__stream_decoder_init_stream(
	FLAC__StreamDecoder *decoder,
	FLAC__StreamDecoderReadCallback read_callback,
	FLAC__StreamDecoderSeekCallback seek_callback,
	FLAC__StreamDecoderTellCallback tell_callback,
	FLAC__StreamDecoderLengthCallback length_callback,
	FLAC__StreamDecoderEofCallback eof_callback,
	FLAC__StreamDecoderWriteCallback write_callback,
	FLAC__StreamDecoderMetadataCallback metadata_callback,
	FLAC__StreamDecoderErrorCallback error_callback,
 void *client_data
)
{
 return init_stream_internal_(
		decoder,
		read_callback,
		seek_callback,
		tell_callback,
		length_callback,
		eof_callback,
		write_callback,
		metadata_callback,
		error_callback,
		client_data,
 /*is_ogg=*/false
 );
}

Project: Android
File: stream_decoder.c

FLAC_API FLAC__StreamDecoder *FLAC__stream_decoder_new(void)
{
	FLAC__StreamDecoder *decoder;
 unsigned i;

	FLAC__ASSERT(sizeof(int) >= 4); /* we want to die right away if this is not true */

	decoder = calloc(1, sizeof(FLAC__StreamDecoder));
 if(decoder == 0) {
 return 0;
 }

	decoder->protected_ = calloc(1, sizeof(FLAC__StreamDecoderProtected));
 if(decoder->protected_ == 0) {
		free(decoder);
 return 0;
 }

	decoder->private_ = calloc(1, sizeof(FLAC__StreamDecoderPrivate));
 if(decoder->private_ == 0) {
		free(decoder->protected_);
		free(decoder);
 return 0;
 }

	decoder->private_->input = FLAC__bitreader_new();
 if(decoder->private_->input == 0) {
		free(decoder->private_);
		free(decoder->protected_);
		free(decoder);
 return 0;
 }

	decoder->private_->metadata_filter_ids_capacity = 16;
 if(0 == (decoder->private_->metadata_filter_ids = malloc((FLAC__STREAM_METADATA_APPLICATION_ID_LEN/8) * decoder->private_->metadata_filter_ids_capacity))) {
		FLAC__bitreader_delete(decoder->private_->input);
		free(decoder->private_);
		free(decoder->protected_);
		free(decoder);
 return 0;
 }

 for(i = 0; i < FLAC__MAX_CHANNELS; i++) {
		decoder->private_->output[i] = 0;
		decoder->private_->residual_unaligned[i] = decoder->private_->residual[i] = 0;
 }

	decoder->private_->output_capacity = 0;
	decoder->private_->output_channels = 0;
	decoder->private_->has_seek_table = false;

 for(i = 0; i < FLAC__MAX_CHANNELS; i++)
		FLAC__format_entropy_coding_method_partitioned_rice_contents_init(&decoder->private_->partitioned_rice_contents[i]);

	decoder->private_->file = 0;

	set_defaults_(decoder);

	decoder->protected_->state = FLAC__STREAM_DECODER_UNINITIALIZED;

 return decoder;
}

Project: Android
File: stream_decoder.c

FLAC_API FLAC__bool FLAC__stream_decoder_process_single(FLAC__StreamDecoder *decoder)
{
	FLAC__bool got_a_frame;
	FLAC__ASSERT(0 != decoder);
	FLAC__ASSERT(0 != decoder->protected_);

 while(1) {
 switch(decoder->protected_->state) {
 case FLAC__STREAM_DECODER_SEARCH_FOR_METADATA:
 if(!find_metadata_(decoder))
 return false; /* above function sets the status for us */
 break;
 case FLAC__STREAM_DECODER_READ_METADATA:
 if(!read_metadata_(decoder))
 return false; /* above function sets the status for us */
 else
 return true;
 case FLAC__STREAM_DECODER_SEARCH_FOR_FRAME_SYNC:
 if(!frame_sync_(decoder))
 return true; /* above function sets the status for us */
 break;
 case FLAC__STREAM_DECODER_READ_FRAME:
 if(!read_frame_(decoder, &got_a_frame, /*do_full_decode=*/true))
 return false; /* above function sets the status for us */
 if(got_a_frame)
 return true; /* above function sets the status for us */
 break;
 case FLAC__STREAM_DECODER_END_OF_STREAM:
 case FLAC__STREAM_DECODER_ABORTED:
 return true;
 default:
				FLAC__ASSERT(0);
 return false;
 }
 }
}

Project: Android
File: stream_decoder.c

FLAC_API FLAC__bool FLAC__stream_decoder_process_until_end_of_metadata(FLAC__StreamDecoder *decoder)
{
	FLAC__ASSERT(0 != decoder);
	FLAC__ASSERT(0 != decoder->protected_);

 while(1) {
 switch(decoder->protected_->state) {
 case FLAC__STREAM_DECODER_SEARCH_FOR_METADATA:
 if(!find_metadata_(decoder))
 return false; /* above function sets the status for us */
 break;
 case FLAC__STREAM_DECODER_READ_METADATA:
 if(!read_metadata_(decoder))
 return false; /* above function sets the status for us */
 break;
 case FLAC__STREAM_DECODER_SEARCH_FOR_FRAME_SYNC:
 case FLAC__STREAM_DECODER_READ_FRAME:
 case FLAC__STREAM_DECODER_END_OF_STREAM:
 case FLAC__STREAM_DECODER_ABORTED:
 return true;
 default:
				FLAC__ASSERT(0);
 return false;
 }
 }
}

Project: Android
File: stream_decoder.c

FLAC_API FLAC__bool FLAC__stream_decoder_process_until_end_of_stream(FLAC__StreamDecoder *decoder)
{
	FLAC__bool dummy;
	FLAC__ASSERT(0 != decoder);
	FLAC__ASSERT(0 != decoder->protected_);

 while(1) {
 switch(decoder->protected_->state) {
 case FLAC__STREAM_DECODER_SEARCH_FOR_METADATA:
 if(!find_metadata_(decoder))
 return false; /* above function sets the status for us */
 break;
 case FLAC__STREAM_DECODER_READ_METADATA:
 if(!read_metadata_(decoder))
 return false; /* above function sets the status for us */
 break;
 case FLAC__STREAM_DECODER_SEARCH_FOR_FRAME_SYNC:
 if(!frame_sync_(decoder))
 return true; /* above function sets the status for us */
 break;
 case FLAC__STREAM_DECODER_READ_FRAME:
 if(!read_frame_(decoder, &dummy, /*do_full_decode=*/true))
 return false; /* above function sets the status for us */
 break;
 case FLAC__STREAM_DECODER_END_OF_STREAM:
 case FLAC__STREAM_DECODER_ABORTED:
 return true;
 default:
				FLAC__ASSERT(0);
 return false;
 }
 }
}

Project: Android
File: stream_decoder.c

FLAC_API FLAC__bool FLAC__stream_decoder_reset(FLAC__StreamDecoder *decoder)
{
	FLAC__ASSERT(0 != decoder);
	FLAC__ASSERT(0 != decoder->private_);
	FLAC__ASSERT(0 != decoder->protected_);

 if(!FLAC__stream_decoder_flush(decoder)) {
 /* above call sets the state for us */
 return false;
 }

#if FLAC__HAS_OGG
 /*@@@ could go in !internal_reset_hack block below */
 if(decoder->private_->is_ogg)
		FLAC__ogg_decoder_aspect_reset(&decoder->protected_->ogg_decoder_aspect);
#endif

 /* Rewind if necessary.  If FLAC__stream_decoder_init() is calling us,
	 * (internal_reset_hack) don't try to rewind since we are already at
	 * the beginning of the stream and don't want to fail if the input is
	 * not seekable.
	 */
 if(!decoder->private_->internal_reset_hack) {
 if(decoder->private_->file == stdin)
 return false; /* can't rewind stdin, reset fails */
 if(decoder->private_->seek_callback && decoder->private_->seek_callback(decoder, 0, decoder->private_->client_data) == FLAC__STREAM_DECODER_SEEK_STATUS_ERROR)
 return false; /* seekable and seek fails, reset fails */
 }
 else
		decoder->private_->internal_reset_hack = false;

	decoder->protected_->state = FLAC__STREAM_DECODER_SEARCH_FOR_METADATA;

	decoder->private_->has_stream_info = false;
 if(decoder->private_->has_seek_table && 0 != decoder->private_->seek_table.data.seek_table.points) {
		free(decoder->private_->seek_table.data.seek_table.points);
		decoder->private_->seek_table.data.seek_table.points = 0;
		decoder->private_->has_seek_table = false;
 }
	decoder->private_->do_md5_checking = decoder->protected_->md5_checking;
 /*
	 * This goes in reset() and not flush() because according to the spec, a
	 * fixed-blocksize stream must stay that way through the whole stream.
	 */
	decoder->private_->fixed_block_size = decoder->private_->next_fixed_block_size = 0;

 /* We initialize the FLAC__MD5Context even though we may never use it.  This
	 * is because md5 checking may be turned on to start and then turned off if
	 * a seek occurs.  So we init the context here and finalize it in
	 * FLAC__stream_decoder_finish() to make sure things are always cleaned up
	 * properly.
	 */
	FLAC__MD5Init(&decoder->private_->md5context);

	decoder->private_->first_frame_offset = 0;
	decoder->private_->unparseable_frame_count = 0;

 return true;
}

Project: Android
File: stream_decoder.c

FLAC_API FLAC__bool FLAC__stream_decoder_set_md5_checking(FLAC__StreamDecoder *decoder, FLAC__bool value)
{
	FLAC__ASSERT(0 != decoder);
	FLAC__ASSERT(0 != decoder->protected_);
 if(decoder->protected_->state != FLAC__STREAM_DECODER_UNINITIALIZED)
 return false;
	decoder->protected_->md5_checking = value;
 return true;
}

Project: Android
File: stream_decoder.c

FLAC_API FLAC__bool FLAC__stream_decoder_set_metadata_ignore_all(FLAC__StreamDecoder *decoder)
{
	FLAC__ASSERT(0 != decoder);
	FLAC__ASSERT(0 != decoder->private_);
	FLAC__ASSERT(0 != decoder->protected_);
 if(decoder->protected_->state != FLAC__STREAM_DECODER_UNINITIALIZED)
 return false;
	memset(decoder->private_->metadata_filter, 0, sizeof(decoder->private_->metadata_filter));
	decoder->private_->metadata_filter_ids_count = 0;
 return true;
}

Project: Android
File: stream_decoder.c

FLAC_API FLAC__bool FLAC__stream_decoder_set_metadata_ignore_application(FLAC__StreamDecoder *decoder, const FLAC__byte id[4])
{
	FLAC__ASSERT(0 != decoder);
	FLAC__ASSERT(0 != decoder->private_);
	FLAC__ASSERT(0 != decoder->protected_);
	FLAC__ASSERT(0 != id);
 if(decoder->protected_->state != FLAC__STREAM_DECODER_UNINITIALIZED)
 return false;

 if(!decoder->private_->metadata_filter[FLAC__METADATA_TYPE_APPLICATION])
 return true;

	FLAC__ASSERT(0 != decoder->private_->metadata_filter_ids);

 if(decoder->private_->metadata_filter_ids_count == decoder->private_->metadata_filter_ids_capacity) {
 if(0 == (decoder->private_->metadata_filter_ids = safe_realloc_mul_2op_(decoder->private_->metadata_filter_ids, decoder->private_->metadata_filter_ids_capacity, /*times*/2))) {
			decoder->protected_->state = FLAC__STREAM_DECODER_MEMORY_ALLOCATION_ERROR;
 return false;
 }
		decoder->private_->metadata_filter_ids_capacity *= 2;
 }

	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));
	decoder->private_->metadata_filter_ids_count++;

 return true;
}

Project: Android
File: stream_decoder.c

FLAC_API FLAC__bool FLAC__stream_decoder_set_metadata_respond(FLAC__StreamDecoder *decoder, FLAC__MetadataType type)
{
	FLAC__ASSERT(0 != decoder);
	FLAC__ASSERT(0 != decoder->private_);
	FLAC__ASSERT(0 != decoder->protected_);
	FLAC__ASSERT((unsigned)type <= FLAC__MAX_METADATA_TYPE_CODE);
 /* double protection */
 if((unsigned)type > FLAC__MAX_METADATA_TYPE_CODE)
 return false;
 if(decoder->protected_->state != FLAC__STREAM_DECODER_UNINITIALIZED)
 return false;
	decoder->private_->metadata_filter[type] = true;
 if(type == FLAC__METADATA_TYPE_APPLICATION)
		decoder->private_->metadata_filter_ids_count = 0;
 return true;
}

Project: Android
File: stream_decoder.c

FLAC_API FLAC__bool FLAC__stream_decoder_set_metadata_respond_all(FLAC__StreamDecoder *decoder)
{
 unsigned i;
	FLAC__ASSERT(0 != decoder);
	FLAC__ASSERT(0 != decoder->private_);
	FLAC__ASSERT(0 != decoder->protected_);
 if(decoder->protected_->state != FLAC__STREAM_DECODER_UNINITIALIZED)
 return false;
 for(i = 0; i < sizeof(decoder->private_->metadata_filter) / sizeof(decoder->private_->metadata_filter[0]); i++)
		decoder->private_->metadata_filter[i] = true;
	decoder->private_->metadata_filter_ids_count = 0;
 return true;
}

Project: Android
File: stream_decoder.c

FLAC_API FLAC__bool FLAC__stream_decoder_set_metadata_respond_application(FLAC__StreamDecoder *decoder, const FLAC__byte id[4])
{
	FLAC__ASSERT(0 != decoder);
	FLAC__ASSERT(0 != decoder->private_);
	FLAC__ASSERT(0 != decoder->protected_);
	FLAC__ASSERT(0 != id);
 if(decoder->protected_->state != FLAC__STREAM_DECODER_UNINITIALIZED)
 return false;

 if(decoder->private_->metadata_filter[FLAC__METADATA_TYPE_APPLICATION])
 return true;

	FLAC__ASSERT(0 != decoder->private_->metadata_filter_ids);

 if(decoder->private_->metadata_filter_ids_count == decoder->private_->metadata_filter_ids_capacity) {
 if(0 == (decoder->private_->metadata_filter_ids = safe_realloc_mul_2op_(decoder->private_->metadata_filter_ids, decoder->private_->metadata_filter_ids_capacity, /*times*/2))) {
			decoder->protected_->state = FLAC__STREAM_DECODER_MEMORY_ALLOCATION_ERROR;
 return false;
 }
		decoder->private_->metadata_filter_ids_capacity *= 2;
 }

	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));
	decoder->private_->metadata_filter_ids_count++;

 return true;
}

Project: Android

FLAC__bool allocate_output_(FLAC__StreamDecoder *decoder, unsigned size, unsigned channels)
{
 unsigned i;
	FLAC__int32 *tmp;

 /* Make sure size is some sensible minimum value. Plumb through predictor_order maybe? */
	size = size < FLAC__MAX_LPC_ORDER ? FLAC__MAX_LPC_ORDER : size ;

 if(size <= decoder->private_->output_capacity && channels <= decoder->private_->output_channels)
 return true;

 /* simply using realloc() is not practical because the number of channels may change mid-stream */

 for(i = 0; i < FLAC__MAX_CHANNELS; i++) {
 if(0 != decoder->private_->output[i]) {
			free(decoder->private_->output[i]-4);
			decoder->private_->output[i] = 0;
 }
 if(0 != decoder->private_->residual_unaligned[i]) {
			free(decoder->private_->residual_unaligned[i]);
			decoder->private_->residual_unaligned[i] = decoder->private_->residual[i] = 0;
 }
 }

 for(i = 0; i < channels; i++) {
 /* WATCHOUT:
		 * FLAC__lpc_restore_signal_asm_ia32_mmx() requires that the
		 * output arrays have a buffer of up to 3 zeroes in front
		 * (at negative indices) for alignment purposes; we use 4
		 * to keep the data well-aligned.
		 */
		tmp = safe_malloc_muladd2_(sizeof(FLAC__int32), /*times (*/size, /*+*/4/*)*/);
 if(tmp == 0) {
			decoder->protected_->state = FLAC__STREAM_DECODER_MEMORY_ALLOCATION_ERROR;
 return false;
 }
		memset(tmp, 0, sizeof(FLAC__int32)*4);
		decoder->private_->output[i] = tmp + 4;

 if(!FLAC__memory_alloc_aligned_int32_array(size, &decoder->private_->residual_unaligned[i], &decoder->private_->residual[i])) {
			decoder->protected_->state = FLAC__STREAM_DECODER_MEMORY_ALLOCATION_ERROR;
 return false;
 }
 }

	decoder->private_->output_capacity = size;
	decoder->private_->output_channels = channels;

 return true;
}

Project: Android
File: stream_decoder.c

FLAC__StreamDecoderReadStatus file_read_callback_(const FLAC__StreamDecoder *decoder, FLAC__byte buffer[], size_t *bytes, void *client_data)
{
 (void)client_data;

 if(*bytes > 0) {
 *bytes = fread(buffer, sizeof(FLAC__byte), *bytes, decoder->private_->file);
 if(ferror(decoder->private_->file))
 return FLAC__STREAM_DECODER_READ_STATUS_ABORT;
 else if(*bytes == 0)
 return FLAC__STREAM_DECODER_READ_STATUS_END_OF_STREAM;
 else
 return FLAC__STREAM_DECODER_READ_STATUS_CONTINUE;
 }
 else
 return FLAC__STREAM_DECODER_READ_STATUS_ABORT; /* abort to avoid a deadlock */
}

Project: Android
File: stream_decoder.c

FLAC__StreamDecoderSeekStatus file_seek_callback_(const FLAC__StreamDecoder *decoder, FLAC__uint64 absolute_byte_offset, void *client_data)
{
 (void)client_data;

 if(decoder->private_->file == stdin)
 return FLAC__STREAM_DECODER_SEEK_STATUS_UNSUPPORTED;
 else if(fseeko(decoder->private_->file, (FLAC__off_t)absolute_byte_offset, SEEK_SET) < 0)
 return FLAC__STREAM_DECODER_SEEK_STATUS_ERROR;
 else
 return FLAC__STREAM_DECODER_SEEK_STATUS_OK;
}

Project: Android
File: stream_decoder.c

FLAC__StreamDecoderTellStatus file_tell_callback_(const FLAC__StreamDecoder *decoder, FLAC__uint64 *absolute_byte_offset, void *client_data)
{
 FLAC__off_t pos;
 (void)client_data;

 if(decoder->private_->file == stdin)
 return FLAC__STREAM_DECODER_TELL_STATUS_UNSUPPORTED;
 else if((pos = ftello(decoder->private_->file)) < 0)
 return FLAC__STREAM_DECODER_TELL_STATUS_ERROR;
 else {
 *absolute_byte_offset = (FLAC__uint64)pos;
 return FLAC__STREAM_DECODER_TELL_STATUS_OK;
 }
}

Project: Android
File: stream_decoder.c

FLAC__bool find_metadata_(FLAC__StreamDecoder *decoder)
{
	FLAC__uint32 x;
 unsigned i, id;
	FLAC__bool first = true;

	FLAC__ASSERT(FLAC__bitreader_is_consumed_byte_aligned(decoder->private_->input));

 for(i = id = 0; i < 4; ) {
 if(decoder->private_->cached) {
			x = (FLAC__uint32)decoder->private_->lookahead;
			decoder->private_->cached = false;
 }
 else {
 if(!FLAC__bitreader_read_raw_uint32(decoder->private_->input, &x, 8))
 return false; /* read_callback_ sets the state for us */
 }
 if(x == FLAC__STREAM_SYNC_STRING[i]) {
			first = true;
			i++;
			id = 0;
 continue;
 }

 if(id >= 3)
 return false;

 if(x == ID3V2_TAG_[id]) {
			id++;
			i = 0;
 if(id == 3) {
 if(!skip_id3v2_tag_(decoder))
 return false; /* skip_id3v2_tag_ sets the state for us */
 }
 continue;
 }
		id = 0;
 if(x == 0xff) { /* MAGIC NUMBER for the first 8 frame sync bits */
			decoder->private_->header_warmup[0] = (FLAC__byte)x;
 if(!FLAC__bitreader_read_raw_uint32(decoder->private_->input, &x, 8))
 return false; /* read_callback_ sets the state for us */

 /* we have to check if we just read two 0xff's in a row; the second may actually be the beginning of the sync code */
 /* else we have to check if the second byte is the end of a sync code */
 if(x == 0xff) { /* MAGIC NUMBER for the first 8 frame sync bits */
				decoder->private_->lookahead = (FLAC__byte)x;
				decoder->private_->cached = true;
 }
 else if(x >> 1 == 0x7c) { /* MAGIC NUMBER for the last 6 sync bits and reserved 7th bit */
				decoder->private_->header_warmup[1] = (FLAC__byte)x;
				decoder->protected_->state = FLAC__STREAM_DECODER_READ_FRAME;
 return true;
 }
 }
		i = 0;
 if(first) {
			send_error_to_client_(decoder, FLAC__STREAM_DECODER_ERROR_STATUS_LOST_SYNC);
			first = false;
 }
 }

	decoder->protected_->state = FLAC__STREAM_DECODER_READ_METADATA;
 return true;
}

Project: Android
File: stream_decoder.c

FLAC__bool frame_sync_(FLAC__StreamDecoder *decoder)
{
	FLAC__uint32 x;
	FLAC__bool first = true;

 /* If we know the total number of samples in the stream, stop if we've read that many. */
 /* This will stop us, for example, from wasting time trying to sync on an ID3V1 tag. */
 if(FLAC__stream_decoder_get_total_samples(decoder) > 0) {
 if(decoder->private_->samples_decoded >= FLAC__stream_decoder_get_total_samples(decoder)) {
			decoder->protected_->state = FLAC__STREAM_DECODER_END_OF_STREAM;
 return true;
 }
 }

 /* make sure we're byte aligned */
 if(!FLAC__bitreader_is_consumed_byte_aligned(decoder->private_->input)) {
 if(!FLAC__bitreader_read_raw_uint32(decoder->private_->input, &x, FLAC__bitreader_bits_left_for_byte_alignment(decoder->private_->input)))
 return false; /* read_callback_ sets the state for us */
 }

 while(1) {
 if(decoder->private_->cached) {
			x = (FLAC__uint32)decoder->private_->lookahead;
			decoder->private_->cached = false;
 }
 else {
 if(!FLAC__bitreader_read_raw_uint32(decoder->private_->input, &x, 8))
 return false; /* read_callback_ sets the state for us */
 }
 if(x == 0xff) { /* MAGIC NUMBER for the first 8 frame sync bits */
			decoder->private_->header_warmup[0] = (FLAC__byte)x;
 if(!FLAC__bitreader_read_raw_uint32(decoder->private_->input, &x, 8))
 return false; /* read_callback_ sets the state for us */

 /* we have to check if we just read two 0xff's in a row; the second may actually be the beginning of the sync code */
 /* else we have to check if the second byte is the end of a sync code */
 if(x == 0xff) { /* MAGIC NUMBER for the first 8 frame sync bits */
				decoder->private_->lookahead = (FLAC__byte)x;
				decoder->private_->cached = true;
 }
 else if(x >> 1 == 0x7c) { /* MAGIC NUMBER for the last 6 sync bits and reserved 7th bit */
				decoder->private_->header_warmup[1] = (FLAC__byte)x;
				decoder->protected_->state = FLAC__STREAM_DECODER_READ_FRAME;
 return true;
 }
 }
 if(first) {
			send_error_to_client_(decoder, FLAC__STREAM_DECODER_ERROR_STATUS_LOST_SYNC);
			first = false;
 }
 }

 return true;
}

Project: Android
File: stream_decoder.c

FILE *get_binary_stdin_(void)
{
 /* if something breaks here it is probably due to the presence or
	 * absence of an underscore before the identifiers 'setmode',
	 * 'fileno', and/or 'O_BINARY'; check your system header files.
	 */
#if defined _MSC_VER || defined __MINGW32__
	_setmode(_fileno(stdin), _O_BINARY);
#elif defined __CYGWIN__
 /* almost certainly not needed for any modern Cygwin, but let's be safe... */
	setmode(_fileno(stdin), _O_BINARY);
#elif defined __EMX__
	setmode(fileno(stdin), O_BINARY);
#endif

 return stdin;
}

Project: Android
File: stream_decoder.c

static FLAC__StreamDecoderInitStatus init_FILE_internal_(
	FLAC__StreamDecoder *decoder,
 FILE *file,
	FLAC__StreamDecoderWriteCallback write_callback,
	FLAC__StreamDecoderMetadataCallback metadata_callback,
	FLAC__StreamDecoderErrorCallback error_callback,
 void *client_data,
	FLAC__bool is_ogg
)
{
	FLAC__ASSERT(0 != decoder);
	FLAC__ASSERT(0 != file);

 if(decoder->protected_->state != FLAC__STREAM_DECODER_UNINITIALIZED)
 return decoder->protected_->initstate = FLAC__STREAM_DECODER_INIT_STATUS_ALREADY_INITIALIZED;

 if(0 == write_callback || 0 == error_callback)
 return decoder->protected_->initstate = FLAC__STREAM_DECODER_INIT_STATUS_INVALID_CALLBACKS;

 /*
	 * To make sure that our file does not go unclosed after an error, we
	 * must assign the FILE pointer before any further error can occur in
	 * this routine.
	 */
 if(file == stdin)
		file = get_binary_stdin_(); /* just to be safe */

	decoder->private_->file = file;

 return init_stream_internal_(
		decoder,
		file_read_callback_,
		decoder->private_->file == stdin? 0: file_seek_callback_,
		decoder->private_->file == stdin? 0: file_tell_callback_,
		decoder->private_->file == stdin? 0: file_length_callback_,
		file_eof_callback_,
		write_callback,
		metadata_callback,
		error_callback,
		client_data,
		is_ogg
 );
}

Project: Android
File: stream_decoder.c

static FLAC__StreamDecoderInitStatus init_file_internal_(
	FLAC__StreamDecoder *decoder,
 const char *filename,
	FLAC__StreamDecoderWriteCallback write_callback,
	FLAC__StreamDecoderMetadataCallback metadata_callback,
	FLAC__StreamDecoderErrorCallback error_callback,
 void *client_data,
	FLAC__bool is_ogg
)
{
 FILE *file;

	FLAC__ASSERT(0 != decoder);

 /*
	 * To make sure that our file does not go unclosed after an error, we
	 * have to do the same entrance checks here that are later performed
	 * in FLAC__stream_decoder_init_FILE() before the FILE* is assigned.
	 */
 if(decoder->protected_->state != FLAC__STREAM_DECODER_UNINITIALIZED)
 return decoder->protected_->initstate = FLAC__STREAM_DECODER_INIT_STATUS_ALREADY_INITIALIZED;

 if(0 == write_callback || 0 == error_callback)
 return decoder->protected_->initstate = FLAC__STREAM_DECODER_INIT_STATUS_INVALID_CALLBACKS;

	file = filename? flac_fopen(filename, "rb") : stdin;

 if(0 == file)
 return FLAC__STREAM_DECODER_INIT_STATUS_ERROR_OPENING_FILE;

 return init_FILE_internal_(decoder, file, write_callback, metadata_callback, error_callback, client_data, is_ogg);
}

Project: Android
File: stream_decoder.c

static FLAC__StreamDecoderInitStatus init_stream_internal_(
	FLAC__StreamDecoder *decoder,
	FLAC__StreamDecoderReadCallback read_callback,
	FLAC__StreamDecoderSeekCallback seek_callback,
	FLAC__StreamDecoderTellCallback tell_callback,
	FLAC__StreamDecoderLengthCallback length_callback,
	FLAC__StreamDecoderEofCallback eof_callback,
	FLAC__StreamDecoderWriteCallback write_callback,
	FLAC__StreamDecoderMetadataCallback metadata_callback,
	FLAC__StreamDecoderErrorCallback error_callback,
 void *client_data,
	FLAC__bool is_ogg
)
{
	FLAC__ASSERT(0 != decoder);

 if(decoder->protected_->state != FLAC__STREAM_DECODER_UNINITIALIZED)
 return FLAC__STREAM_DECODER_INIT_STATUS_ALREADY_INITIALIZED;

#if !FLAC__HAS_OGG
 if(is_ogg)
 return FLAC__STREAM_DECODER_INIT_STATUS_UNSUPPORTED_CONTAINER;
#endif

 if(
 0 == read_callback ||
 0 == write_callback ||
 0 == error_callback ||
 (seek_callback && (0 == tell_callback || 0 == length_callback || 0 == eof_callback))
 )
 return FLAC__STREAM_DECODER_INIT_STATUS_INVALID_CALLBACKS;

#if FLAC__HAS_OGG
	decoder->private_->is_ogg = is_ogg;
 if(is_ogg && !FLAC__ogg_decoder_aspect_init(&decoder->protected_->ogg_decoder_aspect))
 return decoder->protected_->initstate = FLAC__STREAM_DECODER_INIT_STATUS_ERROR_OPENING_FILE;
#endif

 /*
	 * get the CPU info and set the function pointers
	 */
	FLAC__cpu_info(&decoder->private_->cpuinfo);
 /* first default to the non-asm routines */
	decoder->private_->local_lpc_restore_signal = FLAC__lpc_restore_signal;
	decoder->private_->local_lpc_restore_signal_64bit = FLAC__lpc_restore_signal_wide;
	decoder->private_->local_lpc_restore_signal_16bit = FLAC__lpc_restore_signal;
 /* now override with asm where appropriate */
#ifndef FLAC__NO_ASM
 if(decoder->private_->cpuinfo.use_asm) {
#ifdef FLAC__CPU_IA32
		FLAC__ASSERT(decoder->private_->cpuinfo.type == FLAC__CPUINFO_TYPE_IA32);
#ifdef FLAC__HAS_NASM
		decoder->private_->local_lpc_restore_signal_64bit = FLAC__lpc_restore_signal_wide_asm_ia32; /* OPT_IA32: was really necessary for GCC < 4.9 */
 if(decoder->private_->cpuinfo.ia32.mmx) {
			decoder->private_->local_lpc_restore_signal = FLAC__lpc_restore_signal_asm_ia32;
			decoder->private_->local_lpc_restore_signal_16bit = FLAC__lpc_restore_signal_asm_ia32_mmx;
 }
 else {
			decoder->private_->local_lpc_restore_signal = FLAC__lpc_restore_signal_asm_ia32;
			decoder->private_->local_lpc_restore_signal_16bit = FLAC__lpc_restore_signal_asm_ia32;
 }
#endif
#ifdef FLAC__HAS_X86INTRIN
# if defined FLAC__SSE2_SUPPORTED && !defined FLAC__HAS_NASM /* OPT_SSE: not better than MMX asm */
 if(decoder->private_->cpuinfo.ia32.sse2) {
			decoder->private_->local_lpc_restore_signal_16bit = FLAC__lpc_restore_signal_16_intrin_sse2;
 }
# endif
# if defined FLAC__SSE4_1_SUPPORTED
 if(decoder->private_->cpuinfo.ia32.sse41) {
			decoder->private_->local_lpc_restore_signal_64bit = FLAC__lpc_restore_signal_wide_intrin_sse41;
 }
# endif
#endif
#elif defined FLAC__CPU_X86_64
		FLAC__ASSERT(decoder->private_->cpuinfo.type == FLAC__CPUINFO_TYPE_X86_64);
 /* No useful SSE optimizations yet */
#endif
 }
#endif

 /* from here on, errors are fatal */

 if(!FLAC__bitreader_init(decoder->private_->input, read_callback_, decoder)) {
		decoder->protected_->state = FLAC__STREAM_DECODER_MEMORY_ALLOCATION_ERROR;
 return FLAC__STREAM_DECODER_INIT_STATUS_MEMORY_ALLOCATION_ERROR;
 }

	decoder->private_->read_callback = read_callback;
	decoder->private_->seek_callback = seek_callback;
	decoder->private_->tell_callback = tell_callback;
	decoder->private_->length_callback = length_callback;
	decoder->private_->eof_callback = eof_callback;
	decoder->private_->write_callback = write_callback;
	decoder->private_->metadata_callback = metadata_callback;
	decoder->private_->error_callback = error_callback;
	decoder->private_->client_data = client_data;
	decoder->private_->fixed_block_size = decoder->private_->next_fixed_block_size = 0;
	decoder->private_->samples_decoded = 0;
	decoder->private_->has_stream_info = false;
	decoder->private_->cached = false;

	decoder->private_->do_md5_checking = decoder->protected_->md5_checking;
	decoder->private_->is_seeking = false;

	decoder->private_->internal_reset_hack = true; /* so the following reset does not try to rewind the input */
 if(!FLAC__stream_decoder_reset(decoder)) {
 /* above call sets the state for us */
 return FLAC__STREAM_DECODER_INIT_STATUS_MEMORY_ALLOCATION_ERROR;
 }

 return FLAC__STREAM_DECODER_INIT_STATUS_OK;
}

Project: Android
File: stream_decoder.c

FLAC__bool read_callback_(FLAC__byte buffer[], size_t *bytes, void *client_data)
{
	FLAC__StreamDecoder *decoder = (FLAC__StreamDecoder *)client_data;

 if(
#if FLAC__HAS_OGG
 /* see [1] HACK NOTE below for why we don't call the eof_callback when decoding Ogg FLAC */
 !decoder->private_->is_ogg &&
#endif
		decoder->private_->eof_callback && decoder->private_->eof_callback(decoder, decoder->private_->client_data)
 ) {
 *bytes = 0;
		decoder->protected_->state = FLAC__STREAM_DECODER_END_OF_STREAM;
 return false;
 }
 else if(*bytes > 0) {
 /* While seeking, it is possible for our seek to land in the
		 * middle of audio data that looks exactly like a frame header
		 * from a future version of an encoder.  When that happens, our
		 * error callback will get an
		 * FLAC__STREAM_DECODER_UNPARSEABLE_STREAM and increment its
		 * unparseable_frame_count.  But there is a remote possibility
		 * that it is properly synced at such a "future-codec frame",
		 * so to make sure, we wait to see many "unparseable" errors in
		 * a row before bailing out.
		 */
 if(decoder->private_->is_seeking && decoder->private_->unparseable_frame_count > 20) {
			decoder->protected_->state = FLAC__STREAM_DECODER_ABORTED;
 return false;
 }
 else {
 const FLAC__StreamDecoderReadStatus status =
#if FLAC__HAS_OGG
				decoder->private_->is_ogg?
				read_callback_ogg_aspect_(decoder, buffer, bytes) :
#endif
				decoder->private_->read_callback(decoder, buffer, bytes, decoder->private_->client_data)
 ;
 if(status == FLAC__STREAM_DECODER_READ_STATUS_ABORT) {
				decoder->protected_->state = FLAC__STREAM_DECODER_ABORTED;
 return false;
 }
 else if(*bytes == 0) {
 if(
					status == FLAC__STREAM_DECODER_READ_STATUS_END_OF_STREAM ||
 (
#if FLAC__HAS_OGG
 /* see [1] HACK NOTE below for why we don't call the eof_callback when decoding Ogg FLAC */
 !decoder->private_->is_ogg &&
#endif
						decoder->private_->eof_callback && decoder->private_->eof_callback(decoder, decoder->private_->client_data)
 )
 ) {
					decoder->protected_->state = FLAC__STREAM_DECODER_END_OF_STREAM;
 return false;
 }
 else
 return true;
 }
 else
 return true;
 }
 }
 else {
 /* abort to avoid a deadlock */
		decoder->protected_->state = FLAC__STREAM_DECODER_ABORTED;
 return false;
 }
 /* [1] @@@ HACK NOTE: The end-of-stream checking has to be hacked around
	 * for Ogg FLAC.  This is because the ogg decoder aspect can lose sync
	 * and at the same time hit the end of the stream (for example, seeking
	 * to a point that is after the beginning of the last Ogg page).  There
	 * is no way to report an Ogg sync loss through the callbacks (see note
	 * in read_callback_ogg_aspect_()) so it returns CONTINUE with *bytes==0.
	 * So to keep the decoder from stopping at this point we gate the call
	 * to the eof_callback and let the Ogg decoder aspect set the
	 * end-of-stream state when it is needed.
	 */
}

Project: Android
File: stream_decoder.c

FLAC__StreamDecoderReadStatus read_callback_ogg_aspect_(const FLAC__StreamDecoder *decoder, FLAC__byte buffer[], size_t *bytes)
{
 switch(FLAC__ogg_decoder_aspect_read_callback_wrapper(&decoder->protected_->ogg_decoder_aspect, buffer, bytes, read_callback_proxy_, decoder, decoder->private_->client_data)) {
 case FLAC__OGG_DECODER_ASPECT_READ_STATUS_OK:
 return FLAC__STREAM_DECODER_READ_STATUS_CONTINUE;
 /* 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 FLAC__OGG_DECODER_ASPECT_READ_STATUS_LOST_SYNC:
 return FLAC__STREAM_DECODER_READ_STATUS_CONTINUE;
 case FLAC__OGG_DECODER_ASPECT_READ_STATUS_END_OF_STREAM:
 return FLAC__STREAM_DECODER_READ_STATUS_END_OF_STREAM;
 case FLAC__OGG_DECODER_ASPECT_READ_STATUS_NOT_FLAC:
 case FLAC__OGG_DECODER_ASPECT_READ_STATUS_UNSUPPORTED_MAPPING_VERSION:
 case FLAC__OGG_DECODER_ASPECT_READ_STATUS_ABORT:
 case FLAC__OGG_DECODER_ASPECT_READ_STATUS_ERROR:
 case FLAC__OGG_DECODER_ASPECT_READ_STATUS_MEMORY_ALLOCATION_ERROR:
 return FLAC__STREAM_DECODER_READ_STATUS_ABORT;
 default:
			FLAC__ASSERT(0);
 /* double protection */
 return FLAC__STREAM_DECODER_READ_STATUS_ABORT;
 }
}

Project: Android
File: stream_decoder.c

FLAC__OggDecoderAspectReadStatus read_callback_proxy_(const void *void_decoder, FLAC__byte buffer[], size_t *bytes, void *client_data)
{
	FLAC__StreamDecoder *decoder = (FLAC__StreamDecoder*)void_decoder;

 switch(decoder->private_->read_callback(decoder, buffer, bytes, client_data)) {
 case FLAC__STREAM_DECODER_READ_STATUS_CONTINUE:
 return FLAC__OGG_DECODER_ASPECT_READ_STATUS_OK;
 case FLAC__STREAM_DECODER_READ_STATUS_END_OF_STREAM:
 return FLAC__OGG_DECODER_ASPECT_READ_STATUS_END_OF_STREAM;
 case FLAC__STREAM_DECODER_READ_STATUS_ABORT:
 return FLAC__OGG_DECODER_ASPECT_READ_STATUS_ABORT;
 default:
 /* double protection: */
			FLAC__ASSERT(0);
 return FLAC__OGG_DECODER_ASPECT_READ_STATUS_ABORT;
 }
}

Project: Android
File: stream_decoder.c

FLAC__bool read_frame_(FLAC__StreamDecoder *decoder, FLAC__bool *got_a_frame, FLAC__bool do_full_decode)
{
 unsigned channel;
 unsigned i;
	FLAC__int32 mid, side;
 unsigned frame_crc; /* the one we calculate from the input stream */
	FLAC__uint32 x;

 *got_a_frame = false;

 /* init the CRC */
	frame_crc = 0;
	frame_crc = FLAC__CRC16_UPDATE(decoder->private_->header_warmup[0], frame_crc);
	frame_crc = FLAC__CRC16_UPDATE(decoder->private_->header_warmup[1], frame_crc);
	FLAC__bitreader_reset_read_crc16(decoder->private_->input, (FLAC__uint16)frame_crc);

 if(!read_frame_header_(decoder))
 return false;
 if(decoder->protected_->state == FLAC__STREAM_DECODER_SEARCH_FOR_FRAME_SYNC) /* means we didn't sync on a valid header */
 return true;
 if(!allocate_output_(decoder, decoder->private_->frame.header.blocksize, decoder->private_->frame.header.channels))
 return false;
 for(channel = 0; channel < decoder->private_->frame.header.channels; channel++) {
 /*
		 * first figure the correct bits-per-sample of the subframe
		 */
 unsigned bps = decoder->private_->frame.header.bits_per_sample;
 switch(decoder->private_->frame.header.channel_assignment) {
 case FLAC__CHANNEL_ASSIGNMENT_INDEPENDENT:
 /* no adjustment needed */
 break;
 case FLAC__CHANNEL_ASSIGNMENT_LEFT_SIDE:
				FLAC__ASSERT(decoder->private_->frame.header.channels == 2);
 if(channel == 1)
					bps++;
 break;
 case FLAC__CHANNEL_ASSIGNMENT_RIGHT_SIDE:
				FLAC__ASSERT(decoder->private_->frame.header.channels == 2);
 if(channel == 0)
					bps++;
 break;
 case FLAC__CHANNEL_ASSIGNMENT_MID_SIDE:
				FLAC__ASSERT(decoder->private_->frame.header.channels == 2);
 if(channel == 1)
					bps++;
 break;
 default:
				FLAC__ASSERT(0);
 }
 /*
		 * now read it
		 */
 if(!read_subframe_(decoder, channel, bps, do_full_decode))
 return false;
 if(decoder->protected_->state == FLAC__STREAM_DECODER_SEARCH_FOR_FRAME_SYNC) /* means bad sync or got corruption */
 return true;
 }
 if(!read_zero_padding_(decoder))
 return false;
 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) */
 return true;

 /*
	 * Read the frame CRC-16 from the footer and check
	 */
	frame_crc = FLAC__bitreader_get_read_crc16(decoder->private_->input);
 if(!FLAC__bitreader_read_raw_uint32(decoder->private_->input, &x, FLAC__FRAME_FOOTER_CRC_LEN))
 return false; /* read_callback_ sets the state for us */
 if(frame_crc == x) {
 if(do_full_decode) {
 /* Undo any special channel coding */
 switch(decoder->private_->frame.header.channel_assignment) {
 case FLAC__CHANNEL_ASSIGNMENT_INDEPENDENT:
 /* do nothing */
 break;
 case FLAC__CHANNEL_ASSIGNMENT_LEFT_SIDE:
					FLAC__ASSERT(decoder->private_->frame.header.channels == 2);
 for(i = 0; i < decoder->private_->frame.header.blocksize; i++)
						decoder->private_->output[1][i] = decoder->private_->output[0][i] - decoder->private_->output[1][i];
 break;
 case FLAC__CHANNEL_ASSIGNMENT_RIGHT_SIDE:
					FLAC__ASSERT(decoder->private_->frame.header.channels == 2);
 for(i = 0; i < decoder->private_->frame.header.blocksize; i++)
						decoder->private_->output[0][i] += decoder->private_->output[1][i];
 break;
 case FLAC__CHANNEL_ASSIGNMENT_MID_SIDE:
					FLAC__ASSERT(decoder->private_->frame.header.channels == 2);
 for(i = 0; i < decoder->private_->frame.header.blocksize; i++) {
#if 1
						mid = decoder->private_->output[0][i];
						side = decoder->private_->output[1][i];
						mid <<= 1;
						mid |= (side & 1); /* i.e. if 'side' is odd... */
						decoder->private_->output[0][i] = (mid + side) >> 1;
						decoder->private_->output[1][i] = (mid - side) >> 1;
#else
 /* OPT: without 'side' temp variable */
						mid = (decoder->private_->output[0][i] << 1) | (decoder->private_->output[1][i] & 1); /* i.e. if 'side' is odd... */
						decoder->private_->output[0][i] = (mid + decoder->private_->output[1][i]) >> 1;
						decoder->private_->output[1][i] = (mid - decoder->private_->output[1][i]) >> 1;
#endif
 }
 break;
 default:
					FLAC__ASSERT(0);
 break;
 }
 }
 }
 else {
 /* Bad frame, emit error and zero the output signal */
		send_error_to_client_(decoder, FLAC__STREAM_DECODER_ERROR_STATUS_FRAME_CRC_MISMATCH);
 if(do_full_decode) {
 for(channel = 0; channel < decoder->private_->frame.header.channels; channel++) {
				memset(decoder->private_->output[channel], 0, sizeof(FLAC__int32) * decoder->private_->frame.header.blocksize);
 }
 }
 }

 *got_a_frame = true;

 /* we wait to update fixed_block_size until here, when we're sure we've got a proper frame and hence a correct blocksize */
 if(decoder->private_->next_fixed_block_size)
		decoder->private_->fixed_block_size = decoder->private_->next_fixed_block_size;

 /* put the latest values into the public section of the decoder instance */
	decoder->protected_->channels = decoder->private_->frame.header.channels;
	decoder->protected_->channel_assignment = decoder->private_->frame.header.channel_assignment;
	decoder->protected_->bits_per_sample = decoder->private_->frame.header.bits_per_sample;
	decoder->protected_->sample_rate = decoder->private_->frame.header.sample_rate;
	decoder->protected_->blocksize = decoder->private_->frame.header.blocksize;

	FLAC__ASSERT(decoder->private_->frame.header.number_type == FLAC__FRAME_NUMBER_TYPE_SAMPLE_NUMBER);
	decoder->private_->samples_decoded = decoder->private_->frame.header.number.sample_number + decoder->private_->frame.header.blocksize;

 /* write it */
 if(do_full_decode) {
 if(write_audio_frame_to_client_(decoder, &decoder->private_->frame, (const FLAC__int32 * const *)decoder->private_->output) != FLAC__STREAM_DECODER_WRITE_STATUS_CONTINUE)
 return false;
 }

	decoder->protected_->state = FLAC__STREAM_DECODER_SEARCH_FOR_FRAME_SYNC;
 return true;
}

Project: Android
File: stream_decoder.c

FLAC__bool read_frame_header_(FLAC__StreamDecoder *decoder)
{
	FLAC__uint32 x;
	FLAC__uint64 xx;
 unsigned i, blocksize_hint = 0, sample_rate_hint = 0;
	FLAC__byte crc8, raw_header[16]; /* MAGIC NUMBER based on the maximum frame header size, including CRC */
 unsigned raw_header_len;
	FLAC__bool is_unparseable = false;

	FLAC__ASSERT(FLAC__bitreader_is_consumed_byte_aligned(decoder->private_->input));

 /* init the raw header with the saved bits from synchronization */
	raw_header[0] = decoder->private_->header_warmup[0];
	raw_header[1] = decoder->private_->header_warmup[1];
	raw_header_len = 2;

 /* check to make sure that reserved bit is 0 */
 if(raw_header[1] & 0x02) /* MAGIC NUMBER */
		is_unparseable = true;

 /*
	 * Note that along the way as we read the header, we look for a sync
	 * code inside.  If we find one it would indicate that our original
	 * sync was bad since there cannot be a sync code in a valid header.
	 *
	 * Three kinds of things can go wrong when reading the frame header:
	 *  1) We may have sync'ed incorrectly and not landed on a frame header.
	 *     If we don't find a sync code, it can end up looking like we read
	 *     a valid but unparseable header, until getting to the frame header
	 *     CRC.  Even then we could get a false positive on the CRC.
	 *  2) We may have sync'ed correctly but on an unparseable frame (from a
	 *     future encoder).
	 *  3) We may be on a damaged frame which appears valid but unparseable.
	 *
	 * For all these reasons, we try and read a complete frame header as
	 * long as it seems valid, even if unparseable, up until the frame
	 * header CRC.
	 */

 /*
	 * read in the raw header as bytes so we can CRC it, and parse it on the way
	 */
 for(i = 0; i < 2; i++) {
 if(!FLAC__bitreader_read_raw_uint32(decoder->private_->input, &x, 8))
 return false; /* read_callback_ sets the state for us */
 if(x == 0xff) { /* MAGIC NUMBER for the first 8 frame sync bits */
 /* if we get here it means our original sync was erroneous since the sync code cannot appear in the header */
			decoder->private_->lookahead = (FLAC__byte)x;
			decoder->private_->cached = true;
			send_error_to_client_(decoder, FLAC__STREAM_DECODER_ERROR_STATUS_BAD_HEADER);
			decoder->protected_->state = FLAC__STREAM_DECODER_SEARCH_FOR_FRAME_SYNC;
 return true;
 }
		raw_header[raw_header_len++] = (FLAC__byte)x;
 }

 switch(x = raw_header[2] >> 4) {
 case 0:
			is_unparseable = true;
 break;
 case 1:
			decoder->private_->frame.header.blocksize = 192;
 break;
 case 2:
 case 3:
 case 4:
 case 5:
			decoder->private_->frame.header.blocksize = 576 << (x-2);
 break;
 case 6:
 case 7:
			blocksize_hint = x;
 break;
 case 8:
 case 9:
 case 10:
 case 11:
 case 12:
 case 13:
 case 14:
 case 15:
			decoder->private_->frame.header.blocksize = 256 << (x-8);
 break;
 default:
			FLAC__ASSERT(0);
 break;
 }

 switch(x = raw_header[2] & 0x0f) {
 case 0:
 if(decoder->private_->has_stream_info)
				decoder->private_->frame.header.sample_rate = decoder->private_->stream_info.data.stream_info.sample_rate;
 else
				is_unparseable = true;
 break;
 case 1:
			decoder->private_->frame.header.sample_rate = 88200;
 break;
 case 2:
			decoder->private_->frame.header.sample_rate = 176400;
 break;
 case 3:
			decoder->private_->frame.header.sample_rate = 192000;
 break;
 case 4:
			decoder->private_->frame.header.sample_rate = 8000;
 break;
 case 5:
			decoder->private_->frame.header.sample_rate = 16000;
 break;
 case 6:
			decoder->private_->frame.header.sample_rate = 22050;
 break;
 case 7:
			decoder->private_->frame.header.sample_rate = 24000;
 break;
 case 8:
			decoder->private_->frame.header.sample_rate = 32000;
 break;
 case 9:
			decoder->private_->frame.header.sample_rate = 44100;
 break;
 case 10:
			decoder->private_->frame.header.sample_rate = 48000;
 break;
 case 11:
			decoder->private_->frame.header.sample_rate = 96000;
 break;
 case 12:
 case 13:
 case 14:
			sample_rate_hint = x;
 break;
 case 15:
			send_error_to_client_(decoder, FLAC__STREAM_DECODER_ERROR_STATUS_BAD_HEADER);
			decoder->protected_->state = FLAC__STREAM_DECODER_SEARCH_FOR_FRAME_SYNC;
 return true;
 default:
			FLAC__ASSERT(0);
 }

	x = (unsigned)(raw_header[3] >> 4);
 if(x & 8) {
		decoder->private_->frame.header.channels = 2;
 switch(x & 7) {
 case 0:
				decoder->private_->frame.header.channel_assignment = FLAC__CHANNEL_ASSIGNMENT_LEFT_SIDE;
 break;
 case 1:
				decoder->private_->frame.header.channel_assignment = FLAC__CHANNEL_ASSIGNMENT_RIGHT_SIDE;
 break;
 case 2:
				decoder->private_->frame.header.channel_assignment = FLAC__CHANNEL_ASSIGNMENT_MID_SIDE;
 break;
 default:
				is_unparseable = true;
 break;
 }
 }
 else {
		decoder->private_->frame.header.channels = (unsigned)x + 1;
		decoder->private_->frame.header.channel_assignment = FLAC__CHANNEL_ASSIGNMENT_INDEPENDENT;
 }

 switch(x = (unsigned)(raw_header[3] & 0x0e) >> 1) {
 case 0:
 if(decoder->private_->has_stream_info)
				decoder->private_->frame.header.bits_per_sample = decoder->private_->stream_info.data.stream_info.bits_per_sample;
 else
				is_unparseable = true;
 break;
 case 1:
			decoder->private_->frame.header.bits_per_sample = 8;
 break;
 case 2:
			decoder->private_->frame.header.bits_per_sample = 12;
 break;
 case 4:
			decoder->private_->frame.header.bits_per_sample = 16;
 break;
 case 5:
			decoder->private_->frame.header.bits_per_sample = 20;
 break;
 case 6:
			decoder->private_->frame.header.bits_per_sample = 24;
 break;
 case 3:
 case 7:
			is_unparseable = true;
 break;
 default:
			FLAC__ASSERT(0);
 break;
 }

 /* check to make sure that reserved bit is 0 */
 if(raw_header[3] & 0x01) /* MAGIC NUMBER */
		is_unparseable = true;

 /* read the frame's starting sample number (or frame number as the case may be) */
 if(
		raw_header[1] & 0x01 ||
 /*@@@ this clause is a concession to the old way of doing variable blocksize; the only known implementation is flake and can probably be removed without inconveniencing anyone */
 (decoder->private_->has_stream_info && decoder->private_->stream_info.data.stream_info.min_blocksize != decoder->private_->stream_info.data.stream_info.max_blocksize)
 ) { /* variable blocksize */
 if(!FLAC__bitreader_read_utf8_uint64(decoder->private_->input, &xx, raw_header, &raw_header_len))
 return false; /* read_callback_ sets the state for us */
 if(xx == FLAC__U64L(0xffffffffffffffff)) { /* i.e. non-UTF8 code... */
			decoder->private_->lookahead = raw_header[raw_header_len-1]; /* back up as much as we can */
			decoder->private_->cached = true;
			send_error_to_client_(decoder, FLAC__STREAM_DECODER_ERROR_STATUS_BAD_HEADER);
			decoder->protected_->state = FLAC__STREAM_DECODER_SEARCH_FOR_FRAME_SYNC;
 return true;
 }
		decoder->private_->frame.header.number_type = FLAC__FRAME_NUMBER_TYPE_SAMPLE_NUMBER;
		decoder->private_->frame.header.number.sample_number = xx;
 }
 else { /* fixed blocksize */
 if(!FLAC__bitreader_read_utf8_uint32(decoder->private_->input, &x, raw_header, &raw_header_len))
 return false; /* read_callback_ sets the state for us */
 if(x == 0xffffffff) { /* i.e. non-UTF8 code... */
			decoder->private_->lookahead = raw_header[raw_header_len-1]; /* back up as much as we can */
			decoder->private_->cached = true;
			send_error_to_client_(decoder, FLAC__STREAM_DECODER_ERROR_STATUS_BAD_HEADER);
			decoder->protected_->state = FLAC__STREAM_DECODER_SEARCH_FOR_FRAME_SYNC;
 return true;
 }
		decoder->private_->frame.header.number_type = FLAC__FRAME_NUMBER_TYPE_FRAME_NUMBER;
		decoder->private_->frame.header.number.frame_number = x;
 }

 if(blocksize_hint) {
 if(!FLAC__bitreader_read_raw_uint32(decoder->private_->input, &x, 8))
 return false; /* read_callback_ sets the state for us */
		raw_header[raw_header_len++] = (FLAC__byte)x;
 if(blocksize_hint == 7) {
			FLAC__uint32 _x;
 if(!FLAC__bitreader_read_raw_uint32(decoder->private_->input, &_x, 8))
 return false; /* read_callback_ sets the state for us */
			raw_header[raw_header_len++] = (FLAC__byte)_x;
			x = (x << 8) | _x;
 }
		decoder->private_->frame.header.blocksize = x+1;
 }

 if(sample_rate_hint) {
 if(!FLAC__bitreader_read_raw_uint32(decoder->private_->input, &x, 8))
 return false; /* read_callback_ sets the state for us */
		raw_header[raw_header_len++] = (FLAC__byte)x;
 if(sample_rate_hint != 12) {
			FLAC__uint32 _x;
 if(!FLAC__bitreader_read_raw_uint32(decoder->private_->input, &_x, 8))
 return false; /* read_callback_ sets the state for us */
			raw_header[raw_header_len++] = (FLAC__byte)_x;
			x = (x << 8) | _x;
 }
 if(sample_rate_hint == 12)
			decoder->private_->frame.header.sample_rate = x*1000;
 else if(sample_rate_hint == 13)
			decoder->private_->frame.header.sample_rate = x;
 else
			decoder->private_->frame.header.sample_rate = x*10;
 }

 /* read the CRC-8 byte */
 if(!FLAC__bitreader_read_raw_uint32(decoder->private_->input, &x, 8))
 return false; /* read_callback_ sets the state for us */
	crc8 = (FLAC__byte)x;

 if(FLAC__crc8(raw_header, raw_header_len) != crc8) {
		send_error_to_client_(decoder, FLAC__STREAM_DECODER_ERROR_STATUS_BAD_HEADER);
		decoder->protected_->state = FLAC__STREAM_DECODER_SEARCH_FOR_FRAME_SYNC;
 return true;
 }

 /* calculate the sample number from the frame number if needed */
	decoder->private_->next_fixed_block_size = 0;
 if(decoder->private_->frame.header.number_type == FLAC__FRAME_NUMBER_TYPE_FRAME_NUMBER) {
		x = decoder->private_->frame.header.number.frame_number;
		decoder->private_->frame.header.number_type = FLAC__FRAME_NUMBER_TYPE_SAMPLE_NUMBER;
 if(decoder->private_->fixed_block_size)
			decoder->private_->frame.header.number.sample_number = (FLAC__uint64)decoder->private_->fixed_block_size * (FLAC__uint64)x;
 else if(decoder->private_->has_stream_info) {
 if(decoder->private_->stream_info.data.stream_info.min_blocksize == decoder->private_->stream_info.data.stream_info.max_blocksize) {
				decoder->private_->frame.header.number.sample_number = (FLAC__uint64)decoder->private_->stream_info.data.stream_info.min_blocksize * (FLAC__uint64)x;
				decoder->private_->next_fixed_block_size = decoder->private_->stream_info.data.stream_info.max_blocksize;
 }
 else
				is_unparseable = true;
 }
 else if(x == 0) {
			decoder->private_->frame.header.number.sample_number = 0;
			decoder->private_->next_fixed_block_size = decoder->private_->frame.header.blocksize;
 }
 else {
 /* can only get here if the stream has invalid frame numbering and no STREAMINFO, so assume it's not the last (possibly short) frame */
			decoder->private_->frame.header.number.sample_number = (FLAC__uint64)decoder->private_->frame.header.blocksize * (FLAC__uint64)x;
 }
 }

 if(is_unparseable) {
		send_error_to_client_(decoder, FLAC__STREAM_DECODER_ERROR_STATUS_UNPARSEABLE_STREAM);
		decoder->protected_->state = FLAC__STREAM_DECODER_SEARCH_FOR_FRAME_SYNC;
 return true;
 }

 return true;
}

Project: Android
File: stream_decoder.c

FLAC__bool read_metadata_(FLAC__StreamDecoder *decoder)
{
	FLAC__bool is_last;
	FLAC__uint32 i, x, type, length;

	FLAC__ASSERT(FLAC__bitreader_is_consumed_byte_aligned(decoder->private_->input));

 if(!FLAC__bitreader_read_raw_uint32(decoder->private_->input, &x, FLAC__STREAM_METADATA_IS_LAST_LEN))
 return false; /* read_callback_ sets the state for us */
	is_last = x? true : false;

 if(!FLAC__bitreader_read_raw_uint32(decoder->private_->input, &type, FLAC__STREAM_METADATA_TYPE_LEN))
 return false; /* read_callback_ sets the state for us */

 if(!FLAC__bitreader_read_raw_uint32(decoder->private_->input, &length, FLAC__STREAM_METADATA_LENGTH_LEN))
 return false; /* read_callback_ sets the state for us */

 if(type == FLAC__METADATA_TYPE_STREAMINFO) {
 if(!read_metadata_streaminfo_(decoder, is_last, length))
 return false;

		decoder->private_->has_stream_info = true;
 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))
			decoder->private_->do_md5_checking = false;
 if(!decoder->private_->is_seeking && decoder->private_->metadata_filter[FLAC__METADATA_TYPE_STREAMINFO] && decoder->private_->metadata_callback)
			decoder->private_->metadata_callback(decoder, &decoder->private_->stream_info, decoder->private_->client_data);
 }
 else if(type == FLAC__METADATA_TYPE_SEEKTABLE) {
 if(!read_metadata_seektable_(decoder, is_last, length))
 return false;

		decoder->private_->has_seek_table = true;
 if(!decoder->private_->is_seeking && decoder->private_->metadata_filter[FLAC__METADATA_TYPE_SEEKTABLE] && decoder->private_->metadata_callback)
			decoder->private_->metadata_callback(decoder, &decoder->private_->seek_table, decoder->private_->client_data);
 }
 else {
		FLAC__bool skip_it = !decoder->private_->metadata_filter[type];
 unsigned real_length = length;
		FLAC__StreamMetadata block;

		memset(&block, 0, sizeof(block));
		block.is_last = is_last;
		block.type = (FLAC__MetadataType)type;
		block.length = length;

 if(type == FLAC__METADATA_TYPE_APPLICATION) {
 if(!FLAC__bitreader_read_byte_block_aligned_no_crc(decoder->private_->input, block.data.application.id, FLAC__STREAM_METADATA_APPLICATION_ID_LEN/8))
 return false; /* read_callback_ sets the state for us */

 if(real_length < FLAC__STREAM_METADATA_APPLICATION_ID_LEN/8) { /* underflow check */
				decoder->protected_->state = FLAC__STREAM_DECODER_MEMORY_ALLOCATION_ERROR;/*@@@@@@ maybe wrong error? need to resync?*/
 return false;
 }

			real_length -= FLAC__STREAM_METADATA_APPLICATION_ID_LEN/8;

 if(decoder->private_->metadata_filter_ids_count > 0 && has_id_filtered_(decoder, block.data.application.id))
				skip_it = !skip_it;
 }

 if(skip_it) {
 if(!FLAC__bitreader_skip_byte_block_aligned_no_crc(decoder->private_->input, real_length))
 return false; /* read_callback_ sets the state for us */
 }
 else {
			FLAC__bool ok = true;
 switch(type) {
 case FLAC__METADATA_TYPE_PADDING:
 /* skip the padding bytes */
 if(!FLAC__bitreader_skip_byte_block_aligned_no_crc(decoder->private_->input, real_length))
						ok = false; /* read_callback_ sets the state for us */
 break;
 case FLAC__METADATA_TYPE_APPLICATION:
 /* remember, we read the ID already */
 if(real_length > 0) {
 if(0 == (block.data.application.data = malloc(real_length))) {
							decoder->protected_->state = FLAC__STREAM_DECODER_MEMORY_ALLOCATION_ERROR;
							ok = false;
 }
 else if(!FLAC__bitreader_read_byte_block_aligned_no_crc(decoder->private_->input, block.data.application.data, real_length))
							ok = false; /* read_callback_ sets the state for us */
 }
 else
						block.data.application.data = 0;
 break;
 case FLAC__METADATA_TYPE_VORBIS_COMMENT:
 if(!read_metadata_vorbiscomment_(decoder, &block.data.vorbis_comment, real_length))
						ok = false;
 break;
 case FLAC__METADATA_TYPE_CUESHEET:
 if(!read_metadata_cuesheet_(decoder, &block.data.cue_sheet))
						ok = false;
 break;
 case FLAC__METADATA_TYPE_PICTURE:
 if(!read_metadata_picture_(decoder, &block.data.picture))
						ok = false;
 break;
 case FLAC__METADATA_TYPE_STREAMINFO:
 case FLAC__METADATA_TYPE_SEEKTABLE:
					FLAC__ASSERT(0);
 break;
 default:
 if(real_length > 0) {
 if(0 == (block.data.unknown.data = malloc(real_length))) {
							decoder->protected_->state = FLAC__STREAM_DECODER_MEMORY_ALLOCATION_ERROR;
							ok = false;
 }
 else if(!FLAC__bitreader_read_byte_block_aligned_no_crc(decoder->private_->input, block.data.unknown.data, real_length))
							ok = false; /* read_callback_ sets the state for us */
 }
 else
						block.data.unknown.data = 0;
 break;
 }
 if(ok && !decoder->private_->is_seeking && decoder->private_->metadata_callback)
				decoder->private_->metadata_callback(decoder, &block, decoder->private_->client_data);

 /* now we have to free any malloc()ed data in the block */
 switch(type) {
 case FLAC__METADATA_TYPE_PADDING:
 break;
 case FLAC__METADATA_TYPE_APPLICATION:
 if(0 != block.data.application.data)
						free(block.data.application.data);
 break;
 case FLAC__METADATA_TYPE_VORBIS_COMMENT:
 if(0 != block.data.vorbis_comment.vendor_string.entry)
						free(block.data.vorbis_comment.vendor_string.entry);
 if(block.data.vorbis_comment.num_comments > 0)
 for(i = 0; i < block.data.vorbis_comment.num_comments; i++)
 if(0 != block.data.vorbis_comment.comments[i].entry)
								free(block.data.vorbis_comment.comments[i].entry);
 if(0 != block.data.vorbis_comment.comments)
						free(block.data.vorbis_comment.comments);
 break;
 case FLAC__METADATA_TYPE_CUESHEET:
 if(block.data.cue_sheet.num_tracks > 0)
 for(i = 0; i < block.data.cue_sheet.num_tracks; i++)
 if(0 != block.data.cue_sheet.tracks[i].indices)
								free(block.data.cue_sheet.tracks[i].indices);
 if(0 != block.data.cue_sheet.tracks)
						free(block.data.cue_sheet.tracks);
 break;
 case FLAC__METADATA_TYPE_PICTURE:
 if(0 != block.data.picture.mime_type)
						free(block.data.picture.mime_type);
 if(0 != block.data.picture.description)
						free(block.data.picture.description);
 if(0 != block.data.picture.data)
						free(block.data.picture.data);
 break;
 case FLAC__METADATA_TYPE_STREAMINFO:
 case FLAC__METADATA_TYPE_SEEKTABLE:
					FLAC__ASSERT(0);
 default:
 if(0 != block.data.unknown.data)
						free(block.data.unknown.data);
 break;
 }

 if(!ok) /* anything that unsets "ok" should also make sure decoder->protected_->state is updated */
 return false;
 }
 }

 if(is_last) {
 /* if this fails, it's OK, it's just a hint for the seek routine */
 if(!FLAC__stream_decoder_get_decode_position(decoder, &decoder->private_->first_frame_offset))
			decoder->private_->first_frame_offset = 0;
		decoder->protected_->state = FLAC__STREAM_DECODER_SEARCH_FOR_FRAME_SYNC;
 }

 return true;
}

Project: Android
File: stream_decoder.c

FLAC__bool read_metadata_cuesheet_(FLAC__StreamDecoder *decoder, FLAC__StreamMetadata_CueSheet *obj)
{
	FLAC__uint32 i, j, x;

	FLAC__ASSERT(FLAC__bitreader_is_consumed_byte_aligned(decoder->private_->input));

	memset(obj, 0, sizeof(FLAC__StreamMetadata_CueSheet));

	FLAC__ASSERT(FLAC__STREAM_METADATA_CUESHEET_MEDIA_CATALOG_NUMBER_LEN % 8 == 0);
 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))
 return false; /* read_callback_ sets the state for us */

 if(!FLAC__bitreader_read_raw_uint64(decoder->private_->input, &obj->lead_in, FLAC__STREAM_METADATA_CUESHEET_LEAD_IN_LEN))
 return false; /* read_callback_ sets the state for us */

 if(!FLAC__bitreader_read_raw_uint32(decoder->private_->input, &x, FLAC__STREAM_METADATA_CUESHEET_IS_CD_LEN))
 return false; /* read_callback_ sets the state for us */
	obj->is_cd = x? true : false;

 if(!FLAC__bitreader_skip_bits_no_crc(decoder->private_->input, FLAC__STREAM_METADATA_CUESHEET_RESERVED_LEN))
 return false; /* read_callback_ sets the state for us */

 if(!FLAC__bitreader_read_raw_uint32(decoder->private_->input, &x, FLAC__STREAM_METADATA_CUESHEET_NUM_TRACKS_LEN))
 return false; /* read_callback_ sets the state for us */
	obj->num_tracks = x;

 if(obj->num_tracks > 0) {
 if(0 == (obj->tracks = safe_calloc_(obj->num_tracks, sizeof(FLAC__StreamMetadata_CueSheet_Track)))) {
			decoder->protected_->state = FLAC__STREAM_DECODER_MEMORY_ALLOCATION_ERROR;
 return false;
 }
 for(i = 0; i < obj->num_tracks; i++) {
			FLAC__StreamMetadata_CueSheet_Track *track = &obj->tracks[i];
 if(!FLAC__bitreader_read_raw_uint64(decoder->private_->input, &track->offset, FLAC__STREAM_METADATA_CUESHEET_TRACK_OFFSET_LEN))
 return false; /* read_callback_ sets the state for us */

 if(!FLAC__bitreader_read_raw_uint32(decoder->private_->input, &x, FLAC__STREAM_METADATA_CUESHEET_TRACK_NUMBER_LEN))
 return false; /* read_callback_ sets the state for us */
			track->number = (FLAC__byte)x;

			FLAC__ASSERT(FLAC__STREAM_METADATA_CUESHEET_TRACK_ISRC_LEN % 8 == 0);
 if(!FLAC__bitreader_read_byte_block_aligned_no_crc(decoder->private_->input, (FLAC__byte*)track->isrc, FLAC__STREAM_METADATA_CUESHEET_TRACK_ISRC_LEN/8))
 return false; /* read_callback_ sets the state for us */

 if(!FLAC__bitreader_read_raw_uint32(decoder->private_->input, &x, FLAC__STREAM_METADATA_CUESHEET_TRACK_TYPE_LEN))
 return false; /* read_callback_ sets the state for us */
			track->type = x;

 if(!FLAC__bitreader_read_raw_uint32(decoder->private_->input, &x, FLAC__STREAM_METADATA_CUESHEET_TRACK_PRE_EMPHASIS_LEN))
 return false; /* read_callback_ sets the state for us */
			track->pre_emphasis = x;

 if(!FLAC__bitreader_skip_bits_no_crc(decoder->private_->input, FLAC__STREAM_METADATA_CUESHEET_TRACK_RESERVED_LEN))
 return false; /* read_callback_ sets the state for us */

 if(!FLAC__bitreader_read_raw_uint32(decoder->private_->input, &x, FLAC__STREAM_METADATA_CUESHEET_TRACK_NUM_INDICES_LEN))
 return false; /* read_callback_ sets the state for us */
			track->num_indices = (FLAC__byte)x;

 if(track->num_indices > 0) {
 if(0 == (track->indices = safe_calloc_(track->num_indices, sizeof(FLAC__StreamMetadata_CueSheet_Index)))) {
					decoder->protected_->state = FLAC__STREAM_DECODER_MEMORY_ALLOCATION_ERROR;
 return false;
 }
 for(j = 0; j < track->num_indices; j++) {
					FLAC__StreamMetadata_CueSheet_Index *indx = &track->indices[j];
 if(!FLAC__bitreader_read_raw_uint64(decoder->private_->input, &indx->offset, FLAC__STREAM_METADATA_CUESHEET_INDEX_OFFSET_LEN))
 return false; /* read_callback_ sets the state for us */

 if(!FLAC__bitreader_read_raw_uint32(decoder->private_->input, &x, FLAC__STREAM_METADATA_CUESHEET_INDEX_NUMBER_LEN))
 return false; /* read_callback_ sets the state for us */
					indx->number = (FLAC__byte)x;

 if(!FLAC__bitreader_skip_bits_no_crc(decoder->private_->input, FLAC__STREAM_METADATA_CUESHEET_INDEX_RESERVED_LEN))
 return false; /* read_callback_ sets the state for us */
 }
 }
 }
 }

 return true;
}

Project: Android
File: stream_decoder.c

FLAC__bool read_metadata_picture_(FLAC__StreamDecoder *decoder, FLAC__StreamMetadata_Picture *obj)
{
	FLAC__uint32 x;

	FLAC__ASSERT(FLAC__bitreader_is_consumed_byte_aligned(decoder->private_->input));

 /* read type */
 if(!FLAC__bitreader_read_raw_uint32(decoder->private_->input, &x, FLAC__STREAM_METADATA_PICTURE_TYPE_LEN))
 return false; /* read_callback_ sets the state for us */
	obj->type = x;

 /* read MIME type */
 if(!FLAC__bitreader_read_raw_uint32(decoder->private_->input, &x, FLAC__STREAM_METADATA_PICTURE_MIME_TYPE_LENGTH_LEN))
 return false; /* read_callback_ sets the state for us */
 if(0 == (obj->mime_type = safe_malloc_add_2op_(x, /*+*/1))) {
		decoder->protected_->state = FLAC__STREAM_DECODER_MEMORY_ALLOCATION_ERROR;
 return false;
 }
 if(x > 0) {
 if(!FLAC__bitreader_read_byte_block_aligned_no_crc(decoder->private_->input, (FLAC__byte*)obj->mime_type, x))
 return false; /* read_callback_ sets the state for us */
 }
	obj->mime_type[x] = '\0';

 /* read description */
 if(!FLAC__bitreader_read_raw_uint32(decoder->private_->input, &x, FLAC__STREAM_METADATA_PICTURE_DESCRIPTION_LENGTH_LEN))
 return false; /* read_callback_ sets the state for us */
 if(0 == (obj->description = safe_malloc_add_2op_(x, /*+*/1))) {
		decoder->protected_->state = FLAC__STREAM_DECODER_MEMORY_ALLOCATION_ERROR;
 return false;
 }
 if(x > 0) {
 if(!FLAC__bitreader_read_byte_block_aligned_no_crc(decoder->private_->input, obj->description, x))
 return false; /* read_callback_ sets the state for us */
 }
	obj->description[x] = '\0';

 /* read width */
 if(!FLAC__bitreader_read_raw_uint32(decoder->private_->input, &obj->width, FLAC__STREAM_METADATA_PICTURE_WIDTH_LEN))
 return false; /* read_callback_ sets the state for us */

 /* read height */
 if(!FLAC__bitreader_read_raw_uint32(decoder->private_->input, &obj->height, FLAC__STREAM_METADATA_PICTURE_HEIGHT_LEN))
 return false; /* read_callback_ sets the state for us */

 /* read depth */
 if(!FLAC__bitreader_read_raw_uint32(decoder->private_->input, &obj->depth, FLAC__STREAM_METADATA_PICTURE_DEPTH_LEN))
 return false; /* read_callback_ sets the state for us */

 /* read colors */
 if(!FLAC__bitreader_read_raw_uint32(decoder->private_->input, &obj->colors, FLAC__STREAM_METADATA_PICTURE_COLORS_LEN))
 return false; /* read_callback_ sets the state for us */

 /* read data */
 if(!FLAC__bitreader_read_raw_uint32(decoder->private_->input, &(obj->data_length), FLAC__STREAM_METADATA_PICTURE_DATA_LENGTH_LEN))
 return false; /* read_callback_ sets the state for us */
 if(0 == (obj->data = safe_malloc_(obj->data_length))) {
		decoder->protected_->state = FLAC__STREAM_DECODER_MEMORY_ALLOCATION_ERROR;
 return false;
 }
 if(obj->data_length > 0) {
 if(!FLAC__bitreader_read_byte_block_aligned_no_crc(decoder->private_->input, obj->data, obj->data_length))
 return false; /* read_callback_ sets the state for us */
 }

 return true;
}

Project: Android
File: stream_decoder.c

FLAC__bool read_metadata_seektable_(FLAC__StreamDecoder *decoder, FLAC__bool is_last, unsigned length)
{
	FLAC__uint32 i, x;
	FLAC__uint64 xx;

	FLAC__ASSERT(FLAC__bitreader_is_consumed_byte_aligned(decoder->private_->input));

	decoder->private_->seek_table.type = FLAC__METADATA_TYPE_SEEKTABLE;
	decoder->private_->seek_table.is_last = is_last;
	decoder->private_->seek_table.length = length;

	decoder->private_->seek_table.data.seek_table.num_points = length / FLAC__STREAM_METADATA_SEEKPOINT_LENGTH;

 /* use realloc since we may pass through here several times (e.g. after seeking) */
 if(0 == (decoder->private_->seek_table.data.seek_table.points = 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)))) {
		decoder->protected_->state = FLAC__STREAM_DECODER_MEMORY_ALLOCATION_ERROR;
 return false;
 }
 for(i = 0; i < decoder->private_->seek_table.data.seek_table.num_points; i++) {
 if(!FLAC__bitreader_read_raw_uint64(decoder->private_->input, &xx, FLAC__STREAM_METADATA_SEEKPOINT_SAMPLE_NUMBER_LEN))
 return false; /* read_callback_ sets the state for us */
		decoder->private_->seek_table.data.seek_table.points[i].sample_number = xx;

 if(!FLAC__bitreader_read_raw_uint64(decoder->private_->input, &xx, FLAC__STREAM_METADATA_SEEKPOINT_STREAM_OFFSET_LEN))
 return false; /* read_callback_ sets the state for us */
		decoder->private_->seek_table.data.seek_table.points[i].stream_offset = xx;

 if(!FLAC__bitreader_read_raw_uint32(decoder->private_->input, &x, FLAC__STREAM_METADATA_SEEKPOINT_FRAME_SAMPLES_LEN))
 return false; /* read_callback_ sets the state for us */
		decoder->private_->seek_table.data.seek_table.points[i].frame_samples = x;
 }
	length -= (decoder->private_->seek_table.data.seek_table.num_points * FLAC__STREAM_METADATA_SEEKPOINT_LENGTH);
 /* if there is a partial point left, skip over it */
 if(length > 0) {
 /*@@@ do a send_error_to_client_() here?  there's an argument for either way */
 if(!FLAC__bitreader_skip_byte_block_aligned_no_crc(decoder->private_->input, length))
 return false; /* read_callback_ sets the state for us */
 }

 return true;
}

Project: Android
File: stream_decoder.c

FLAC__bool read_metadata_streaminfo_(FLAC__StreamDecoder *decoder, FLAC__bool is_last, unsigned length)
{
	FLAC__uint32 x;
 unsigned bits, used_bits = 0;

	FLAC__ASSERT(FLAC__bitreader_is_consumed_byte_aligned(decoder->private_->input));

	decoder->private_->stream_info.type = FLAC__METADATA_TYPE_STREAMINFO;
	decoder->private_->stream_info.is_last = is_last;
	decoder->private_->stream_info.length = length;

	bits = FLAC__STREAM_METADATA_STREAMINFO_MIN_BLOCK_SIZE_LEN;
 if(!FLAC__bitreader_read_raw_uint32(decoder->private_->input, &x, bits))
 return false; /* read_callback_ sets the state for us */
	decoder->private_->stream_info.data.stream_info.min_blocksize = x;
	used_bits += bits;

	bits = FLAC__STREAM_METADATA_STREAMINFO_MAX_BLOCK_SIZE_LEN;
 if(!FLAC__bitreader_read_raw_uint32(decoder->private_->input, &x, FLAC__STREAM_METADATA_STREAMINFO_MAX_BLOCK_SIZE_LEN))
 return false; /* read_callback_ sets the state for us */
	decoder->private_->stream_info.data.stream_info.max_blocksize = x;
	used_bits += bits;

	bits = FLAC__STREAM_METADATA_STREAMINFO_MIN_FRAME_SIZE_LEN;
 if(!FLAC__bitreader_read_raw_uint32(decoder->private_->input, &x, FLAC__STREAM_METADATA_STREAMINFO_MIN_FRAME_SIZE_LEN))
 return false; /* read_callback_ sets the state for us */
	decoder->private_->stream_info.data.stream_info.min_framesize = x;
	used_bits += bits;

	bits = FLAC__STREAM_METADATA_STREAMINFO_MAX_FRAME_SIZE_LEN;
 if(!FLAC__bitreader_read_raw_uint32(decoder->private_->input, &x, FLAC__STREAM_METADATA_STREAMINFO_MAX_FRAME_SIZE_LEN))
 return false; /* read_callback_ sets the state for us */
	decoder->private_->stream_info.data.stream_info.max_framesize = x;
	used_bits += bits;

	bits = FLAC__STREAM_METADATA_STREAMINFO_SAMPLE_RATE_LEN;
 if(!FLAC__bitreader_read_raw_uint32(decoder->private_->input, &x, FLAC__STREAM_METADATA_STREAMINFO_SAMPLE_RATE_LEN))
 return false; /* read_callback_ sets the state for us */
	decoder->private_->stream_info.data.stream_info.sample_rate = x;
	used_bits += bits;

	bits = FLAC__STREAM_METADATA_STREAMINFO_CHANNELS_LEN;
 if(!FLAC__bitreader_read_raw_uint32(decoder->private_->input, &x, FLAC__STREAM_METADATA_STREAMINFO_CHANNELS_LEN))
 return false; /* read_callback_ sets the state for us */
	decoder->private_->stream_info.data.stream_info.channels = x+1;
	used_bits += bits;

	bits = FLAC__STREAM_METADATA_STREAMINFO_BITS_PER_SAMPLE_LEN;
 if(!FLAC__bitreader_read_raw_uint32(decoder->private_->input, &x, FLAC__STREAM_METADATA_STREAMINFO_BITS_PER_SAMPLE_LEN))
 return false; /* read_callback_ sets the state for us */
	decoder->private_->stream_info.data.stream_info.bits_per_sample = x+1;
	used_bits += bits;

	bits = FLAC__STREAM_METADATA_STREAMINFO_TOTAL_SAMPLES_LEN;
 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))
 return false; /* read_callback_ sets the state for us */
	used_bits += bits;

 if(!FLAC__bitreader_read_byte_block_aligned_no_crc(decoder->private_->input, decoder->private_->stream_info.data.stream_info.md5sum, 16))
 return false; /* read_callback_ sets the state for us */
	used_bits += 16*8;

 /* skip the rest of the block */
	FLAC__ASSERT(used_bits % 8 == 0);
	length -= (used_bits / 8);
 if(!FLAC__bitreader_skip_byte_block_aligned_no_crc(decoder->private_->input, length))
 return false; /* read_callback_ sets the state for us */

 return true;
}

Project: Android
File: stream_decoder.c

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)
{
	FLAC__uint32 rice_parameter;
 int i;
 unsigned partition, sample, u;
 const unsigned partitions = 1u << partition_order;
 const unsigned partition_samples = partition_order > 0? decoder->private_->frame.header.blocksize >> partition_order : decoder->private_->frame.header.blocksize - predictor_order;
 const unsigned plen = is_extended? FLAC__ENTROPY_CODING_METHOD_PARTITIONED_RICE2_PARAMETER_LEN : FLAC__ENTROPY_CODING_METHOD_PARTITIONED_RICE_PARAMETER_LEN;
 const unsigned pesc = is_extended? FLAC__ENTROPY_CODING_METHOD_PARTITIONED_RICE2_ESCAPE_PARAMETER : FLAC__ENTROPY_CODING_METHOD_PARTITIONED_RICE_ESCAPE_PARAMETER;

 /* sanity checks */
 if(partition_order == 0) {
 if(decoder->private_->frame.header.blocksize < predictor_order) {
			send_error_to_client_(decoder, FLAC__STREAM_DECODER_ERROR_STATUS_LOST_SYNC);
			decoder->protected_->state = FLAC__STREAM_DECODER_SEARCH_FOR_FRAME_SYNC;
 return true;
 }
 }
 else {
 if(partition_samples < predictor_order) {
			send_error_to_client_(decoder, FLAC__STREAM_DECODER_ERROR_STATUS_LOST_SYNC);
			decoder->protected_->state = FLAC__STREAM_DECODER_SEARCH_FOR_FRAME_SYNC;
 return true;
 }
 }

 if(!FLAC__format_entropy_coding_method_partitioned_rice_contents_ensure_size(partitioned_rice_contents, flac_max(6u, partition_order))) {
		decoder->protected_->state = FLAC__STREAM_DECODER_MEMORY_ALLOCATION_ERROR;
 return false;
 }

	sample = 0;
 for(partition = 0; partition < partitions; partition++) {
 if(!FLAC__bitreader_read_raw_uint32(decoder->private_->input, &rice_parameter, plen))
 return false; /* read_callback_ sets the state for us */
		partitioned_rice_contents->parameters[partition] = rice_parameter;
 if(rice_parameter < pesc) {
			partitioned_rice_contents->raw_bits[partition] = 0;
			u = (partition_order == 0 || partition > 0)? partition_samples : partition_samples - predictor_order;
 if(!FLAC__bitreader_read_rice_signed_block(decoder->private_->input, residual + sample, u, rice_parameter))
 return false; /* read_callback_ sets the state for us */
			sample += u;
 }
 else {
 if(!FLAC__bitreader_read_raw_uint32(decoder->private_->input, &rice_parameter, FLAC__ENTROPY_CODING_METHOD_PARTITIONED_RICE_RAW_LEN))
 return false; /* read_callback_ sets the state for us */
			partitioned_rice_contents->raw_bits[partition] = rice_parameter;
 for(u = (partition_order == 0 || partition > 0)? 0 : predictor_order; u < partition_samples; u++, sample++) {
 if(!FLAC__bitreader_read_raw_int32(decoder->private_->input, &i, rice_parameter))
 return false; /* read_callback_ sets the state for us */
				residual[sample] = i;
 }
 }
 }

 return true;
}

Project: Android
File: stream_decoder.c

FLAC__bool read_subframe_(FLAC__StreamDecoder *decoder, unsigned channel, unsigned bps, FLAC__bool do_full_decode)
{
	FLAC__uint32 x;
	FLAC__bool wasted_bits;
 unsigned i;

 if(!FLAC__bitreader_read_raw_uint32(decoder->private_->input, &x, 8)) /* MAGIC NUMBER */
 return false; /* read_callback_ sets the state for us */

	wasted_bits = (x & 1);
	x &= 0xfe;

 if(wasted_bits) {
 unsigned u;
 if(!FLAC__bitreader_read_unary_unsigned(decoder->private_->input, &u))
 return false; /* read_callback_ sets the state for us */
		decoder->private_->frame.subframes[channel].wasted_bits = u+1;
		bps -= decoder->private_->frame.subframes[channel].wasted_bits;
 }
 else
		decoder->private_->frame.subframes[channel].wasted_bits = 0;

 /*
	 * Lots of magic numbers here
	 */
 if(x & 0x80) {
		send_error_to_client_(decoder, FLAC__STREAM_DECODER_ERROR_STATUS_LOST_SYNC);
		decoder->protected_->state = FLAC__STREAM_DECODER_SEARCH_FOR_FRAME_SYNC;
 return true;
 }
 else if(x == 0) {
 if(!read_subframe_constant_(decoder, channel, bps, do_full_decode))
 return false;
 }
 else if(x == 2) {
 if(!read_subframe_verbatim_(decoder, channel, bps, do_full_decode))
 return false;
 }
 else if(x < 16) {
		send_error_to_client_(decoder, FLAC__STREAM_DECODER_ERROR_STATUS_UNPARSEABLE_STREAM);
		decoder->protected_->state = FLAC__STREAM_DECODER_SEARCH_FOR_FRAME_SYNC;
 return true;
 }
 else if(x <= 24) {
 if(!read_subframe_fixed_(decoder, channel, bps, (x>>1)&7, do_full_decode))
 return false;
 if(decoder->protected_->state == FLAC__STREAM_DECODER_SEARCH_FOR_FRAME_SYNC) /* means bad sync or got corruption */
 return true;
 }
 else if(x < 64) {
		send_error_to_client_(decoder, FLAC__STREAM_DECODER_ERROR_STATUS_UNPARSEABLE_STREAM);
		decoder->protected_->state = FLAC__STREAM_DECODER_SEARCH_FOR_FRAME_SYNC;
 return true;
 }
 else {
 if(!read_subframe_lpc_(decoder, channel, bps, ((x>>1)&31)+1, do_full_decode))
 return false;
 if(decoder->protected_->state == FLAC__STREAM_DECODER_SEARCH_FOR_FRAME_SYNC) /* means bad sync or got corruption */
 return true;
 }

 if(wasted_bits && do_full_decode) {
		x = decoder->private_->frame.subframes[channel].wasted_bits;
 for(i = 0; i < decoder->private_->frame.header.blocksize; i++)
			decoder->private_->output[channel][i] <<= x;
 }

 return true;
}

Project: Android
File: stream_decoder.c

FLAC__bool read_subframe_constant_(FLAC__StreamDecoder *decoder, unsigned channel, unsigned bps, FLAC__bool do_full_decode)
{
	FLAC__Subframe_Constant *subframe = &decoder->private_->frame.subframes[channel].data.constant;
	FLAC__int32 x;
 unsigned i;
	FLAC__int32 *output = decoder->private_->output[channel];

	decoder->private_->frame.subframes[channel].type = FLAC__SUBFRAME_TYPE_CONSTANT;

 if(!FLAC__bitreader_read_raw_int32(decoder->private_->input, &x, bps))
 return false; /* read_callback_ sets the state for us */

	subframe->value = x;

 /* decode the subframe */
 if(do_full_decode) {
 for(i = 0; i < decoder->private_->frame.header.blocksize; i++)
			output[i] = x;
 }

 return true;
}

Project: Android
File: stream_decoder.c

FLAC__bool read_subframe_fixed_(FLAC__StreamDecoder *decoder, unsigned channel, unsigned bps, const unsigned order, FLAC__bool do_full_decode)
{
	FLAC__Subframe_Fixed *subframe = &decoder->private_->frame.subframes[channel].data.fixed;
	FLAC__int32 i32;
	FLAC__uint32 u32;
 unsigned u;

	decoder->private_->frame.subframes[channel].type = FLAC__SUBFRAME_TYPE_FIXED;

	subframe->residual = decoder->private_->residual[channel];
	subframe->order = order;

 /* read warm-up samples */
 for(u = 0; u < order; u++) {
 if(!FLAC__bitreader_read_raw_int32(decoder->private_->input, &i32, bps))
 return false; /* read_callback_ sets the state for us */
		subframe->warmup[u] = i32;
 }

 /* read entropy coding method info */
 if(!FLAC__bitreader_read_raw_uint32(decoder->private_->input, &u32, FLAC__ENTROPY_CODING_METHOD_TYPE_LEN))
 return false; /* read_callback_ sets the state for us */
	subframe->entropy_coding_method.type = (FLAC__EntropyCodingMethodType)u32;
 switch(subframe->entropy_coding_method.type) {
 case FLAC__ENTROPY_CODING_METHOD_PARTITIONED_RICE:
 case FLAC__ENTROPY_CODING_METHOD_PARTITIONED_RICE2:
 if(!FLAC__bitreader_read_raw_uint32(decoder->private_->input, &u32, FLAC__ENTROPY_CODING_METHOD_PARTITIONED_RICE_ORDER_LEN))
 return false; /* read_callback_ sets the state for us */
			subframe->entropy_coding_method.data.partitioned_rice.order = u32;
			subframe->entropy_coding_method.data.partitioned_rice.contents = &decoder->private_->partitioned_rice_contents[channel];
 break;
 default:
			send_error_to_client_(decoder, FLAC__STREAM_DECODER_ERROR_STATUS_UNPARSEABLE_STREAM);
			decoder->protected_->state = FLAC__STREAM_DECODER_SEARCH_FOR_FRAME_SYNC;
 return true;
 }

 /* read residual */
 switch(subframe->entropy_coding_method.type) {
 case FLAC__ENTROPY_CODING_METHOD_PARTITIONED_RICE:
 case FLAC__ENTROPY_CODING_METHOD_PARTITIONED_RICE2:
 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))
 return false;
 break;
 default:
			FLAC__ASSERT(0);
 }

 /* decode the subframe */
 if(do_full_decode) {
		memcpy(decoder->private_->output[channel], subframe->warmup, sizeof(FLAC__int32) * order);
		FLAC__fixed_restore_signal(decoder->private_->residual[channel], decoder->private_->frame.header.blocksize-order, order, decoder->private_->output[channel]+order);
 }

 return true;
}

Project: Android
File: stream_decoder.c

FLAC__bool read_subframe_lpc_(FLAC__StreamDecoder *decoder, unsigned channel, unsigned bps, const unsigned order, FLAC__bool do_full_decode)
{
	FLAC__Subframe_LPC *subframe = &decoder->private_->frame.subframes[channel].data.lpc;
	FLAC__int32 i32;
	FLAC__uint32 u32;
 unsigned u;

	decoder->private_->frame.subframes[channel].type = FLAC__SUBFRAME_TYPE_LPC;

	subframe->residual = decoder->private_->residual[channel];
	subframe->order = order;

 /* read warm-up samples */
 for(u = 0; u < order; u++) {
 if(!FLAC__bitreader_read_raw_int32(decoder->private_->input, &i32, bps))
 return false; /* read_callback_ sets the state for us */
		subframe->warmup[u] = i32;
 }

 /* read qlp coeff precision */
 if(!FLAC__bitreader_read_raw_uint32(decoder->private_->input, &u32, FLAC__SUBFRAME_LPC_QLP_COEFF_PRECISION_LEN))
 return false; /* read_callback_ sets the state for us */
 if(u32 == (1u << FLAC__SUBFRAME_LPC_QLP_COEFF_PRECISION_LEN) - 1) {
		send_error_to_client_(decoder, FLAC__STREAM_DECODER_ERROR_STATUS_LOST_SYNC);
		decoder->protected_->state = FLAC__STREAM_DECODER_SEARCH_FOR_FRAME_SYNC;
 return true;
 }
	subframe->qlp_coeff_precision = u32+1;

 /* read qlp shift */
 if(!FLAC__bitreader_read_raw_int32(decoder->private_->input, &i32, FLAC__SUBFRAME_LPC_QLP_SHIFT_LEN))
 return false; /* read_callback_ sets the state for us */
	subframe->quantization_level = i32;

 /* read quantized lp coefficiencts */
 for(u = 0; u < order; u++) {
 if(!FLAC__bitreader_read_raw_int32(decoder->private_->input, &i32, subframe->qlp_coeff_precision))
 return false; /* read_callback_ sets the state for us */
		subframe->qlp_coeff[u] = i32;
 }

 /* read entropy coding method info */
 if(!FLAC__bitreader_read_raw_uint32(decoder->private_->input, &u32, FLAC__ENTROPY_CODING_METHOD_TYPE_LEN))
 return false; /* read_callback_ sets the state for us */
	subframe->entropy_coding_method.type = (FLAC__EntropyCodingMethodType)u32;
 switch(subframe->entropy_coding_method.type) {
 case FLAC__ENTROPY_CODING_METHOD_PARTITIONED_RICE:
 case FLAC__ENTROPY_CODING_METHOD_PARTITIONED_RICE2:
 if(!FLAC__bitreader_read_raw_uint32(decoder->private_->input, &u32, FLAC__ENTROPY_CODING_METHOD_PARTITIONED_RICE_ORDER_LEN))
 return false; /* read_callback_ sets the state for us */
			subframe->entropy_coding_method.data.partitioned_rice.order = u32;
			subframe->entropy_coding_method.data.partitioned_rice.contents = &decoder->private_->partitioned_rice_contents[channel];
 break;
 default:
			send_error_to_client_(decoder, FLAC__STREAM_DECODER_ERROR_STATUS_UNPARSEABLE_STREAM);
			decoder->protected_->state = FLAC__STREAM_DECODER_SEARCH_FOR_FRAME_SYNC;
 return true;
 }

 /* read residual */
 switch(subframe->entropy_coding_method.type) {
 case FLAC__ENTROPY_CODING_METHOD_PARTITIONED_RICE:
 case FLAC__ENTROPY_CODING_METHOD_PARTITIONED_RICE2:
 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))
 return false;
 break;
 default:
			FLAC__ASSERT(0);
 }

 /* decode the subframe */
 if(do_full_decode) {
		memcpy(decoder->private_->output[channel], subframe->warmup, sizeof(FLAC__int32) * order);
 /*@@@@@@ technically not pessimistic enough, should be more like
		if( (FLAC__uint64)order * ((((FLAC__uint64)1)<<bps)-1) * ((1<<subframe->qlp_coeff_precision)-1) < (((FLAC__uint64)-1) << 32) )
		*/
 if(bps + subframe->qlp_coeff_precision + FLAC__bitmath_ilog2(order) <= 32)
 if(bps <= 16 && subframe->qlp_coeff_precision <= 16)
				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);
 else
				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);
 else
			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);
 }

 return true;
}

Project: Android
File: stream_decoder.c

FLAC__bool read_subframe_verbatim_(FLAC__StreamDecoder *decoder, unsigned channel, unsigned bps, FLAC__bool do_full_decode)
{
	FLAC__Subframe_Verbatim *subframe = &decoder->private_->frame.subframes[channel].data.verbatim;
	FLAC__int32 x, *residual = decoder->private_->residual[channel];
 unsigned i;

	decoder->private_->frame.subframes[channel].type = FLAC__SUBFRAME_TYPE_VERBATIM;

	subframe->data = residual;

 for(i = 0; i < decoder->private_->frame.header.blocksize; i++) {
 if(!FLAC__bitreader_read_raw_int32(decoder->private_->input, &x, bps))
 return false; /* read_callback_ sets the state for us */
		residual[i] = x;
 }

 /* decode the subframe */
 if(do_full_decode)
		memcpy(decoder->private_->output[channel], subframe->data, sizeof(FLAC__int32) * decoder->private_->frame.header.blocksize);

 return true;
}

Project: Android
File: stream_decoder.c

FLAC__bool read_zero_padding_(FLAC__StreamDecoder *decoder)
{
 if(!FLAC__bitreader_is_consumed_byte_aligned(decoder->private_->input)) {
		FLAC__uint32 zero = 0;
 if(!FLAC__bitreader_read_raw_uint32(decoder->private_->input, &zero, FLAC__bitreader_bits_left_for_byte_alignment(decoder->private_->input)))
 return false; /* read_callback_ sets the state for us */
 if(zero != 0) {
			send_error_to_client_(decoder, FLAC__STREAM_DECODER_ERROR_STATUS_LOST_SYNC);
			decoder->protected_->state = FLAC__STREAM_DECODER_SEARCH_FOR_FRAME_SYNC;
 }
 }
 return true;
}

Project: Android
File: stream_decoder.c

FLAC__bool seek_to_absolute_sample_ogg_(FLAC__StreamDecoder *decoder, FLAC__uint64 stream_length, FLAC__uint64 target_sample)
{
	FLAC__uint64 left_pos = 0, right_pos = stream_length;
	FLAC__uint64 left_sample = 0, right_sample = FLAC__stream_decoder_get_total_samples(decoder);
	FLAC__uint64 this_frame_sample = (FLAC__uint64)0 - 1;
	FLAC__uint64 pos = 0; /* only initialized to avoid compiler warning */
	FLAC__bool did_a_seek;
 unsigned iteration = 0;

 /* In the first iterations, we will calculate the target byte position
	 * by the distance from the target sample to left_sample and
	 * right_sample (let's call it "proportional search").  After that, we
	 * will switch to binary search.
	 */
 unsigned BINARY_SEARCH_AFTER_ITERATION = 2;

 /* We will switch to a linear search once our current sample is less
	 * than this number of samples ahead of the target sample
	 */
 static const FLAC__uint64 LINEAR_SEARCH_WITHIN_SAMPLES = FLAC__MAX_BLOCK_SIZE * 2;

 /* If the total number of samples is unknown, use a large value, and
	 * force binary search immediately.
	 */
 if(right_sample == 0) {
		right_sample = (FLAC__uint64)(-1);
		BINARY_SEARCH_AFTER_ITERATION = 0;
 }

	decoder->private_->target_sample = target_sample;
 for( ; ; iteration++) {
 if (iteration == 0 || this_frame_sample > target_sample || target_sample - this_frame_sample > LINEAR_SEARCH_WITHIN_SAMPLES) {
 if (iteration >= BINARY_SEARCH_AFTER_ITERATION) {
				pos = (right_pos + left_pos) / 2;
 }
 else {
#ifndef FLAC__INTEGER_ONLY_LIBRARY
				pos = (FLAC__uint64)((FLAC__double)(target_sample - left_sample) / (FLAC__double)(right_sample - left_sample) * (FLAC__double)(right_pos - left_pos));
#else
 /* a little less accurate: */
 if ((target_sample-left_sample <= 0xffffffff) && (right_pos-left_pos <= 0xffffffff))
					pos = (FLAC__int64)(((target_sample-left_sample) * (right_pos-left_pos)) / (right_sample-left_sample));
 else /* @@@ WATCHOUT, ~2TB limit */
					pos = (FLAC__int64)((((target_sample-left_sample)>>8) * ((right_pos-left_pos)>>8)) / ((right_sample-left_sample)>>16));
#endif
 /* @@@ TODO: might want to limit pos to some distance
				 * before EOF, to make sure we land before the last frame,
				 * thereby getting a this_frame_sample and so having a better
				 * estimate.
				 */
 }

 /* physical seek */
 if(decoder->private_->seek_callback((FLAC__StreamDecoder*)decoder, (FLAC__uint64)pos, decoder->private_->client_data) != FLAC__STREAM_DECODER_SEEK_STATUS_OK) {
				decoder->protected_->state = FLAC__STREAM_DECODER_SEEK_ERROR;
 return false;
 }
 if(!FLAC__stream_decoder_flush(decoder)) {
 /* above call sets the state for us */
 return false;
 }
			did_a_seek = true;
 }
 else
			did_a_seek = false;

		decoder->private_->got_a_frame = false;
 if(!FLAC__stream_decoder_process_single(decoder)) {
			decoder->protected_->state = FLAC__STREAM_DECODER_SEEK_ERROR;
 return false;
 }
 if(!decoder->private_->got_a_frame) {
 if(did_a_seek) {
 /* this can happen if we seek to a point after the last frame; we drop
				 * to binary search right away in this case to avoid any wasted
				 * iterations of proportional search.
				 */
				right_pos = pos;
				BINARY_SEARCH_AFTER_ITERATION = 0;
 }
 else {
 /* this can probably only happen if total_samples is unknown and the
				 * target_sample is past the end of the stream
				 */
				decoder->protected_->state = FLAC__STREAM_DECODER_SEEK_ERROR;
 return false;
 }
 }
 /* our write callback will change the state when it gets to the target frame */
 else if(!decoder->private_->is_seeking) {
 break;
 }
 else {
			this_frame_sample = decoder->private_->last_frame.header.number.sample_number;
			FLAC__ASSERT(decoder->private_->last_frame.header.number_type == FLAC__FRAME_NUMBER_TYPE_SAMPLE_NUMBER);

 if (did_a_seek) {
 if (this_frame_sample <= target_sample) {
 /* The 'equal' case should not happen, since
					 * FLAC__stream_decoder_process_single()
					 * should recognize that it has hit the
					 * target sample and we would exit through
					 * the 'break' above.
					 */
					FLAC__ASSERT(this_frame_sample != target_sample);

					left_sample = this_frame_sample;
 /* sanity check to avoid infinite loop */
 if (left_pos == pos) {
						decoder->protected_->state = FLAC__STREAM_DECODER_SEEK_ERROR;
 return false;
 }
					left_pos = pos;
 }
 else if(this_frame_sample > target_sample) {
					right_sample = this_frame_sample;
 /* sanity check to avoid infinite loop */
 if (right_pos == pos) {
						decoder->protected_->state = FLAC__STREAM_DECODER_SEEK_ERROR;
 return false;
 }
					right_pos = pos;
 }
 }
 }
 }

 return true;
}

Project: Android
File: stream_decoder.c

void send_error_to_client_(const FLAC__StreamDecoder *decoder, FLAC__StreamDecoderErrorStatus status)
{
 if(!decoder->private_->is_seeking)
		decoder->private_->error_callback(decoder, status, decoder->private_->client_data);
 else if(status == FLAC__STREAM_DECODER_ERROR_STATUS_UNPARSEABLE_STREAM)
		decoder->private_->unparseable_frame_count++;
}

Project: Android
File: stream_decoder.c

void set_defaults_(FLAC__StreamDecoder *decoder)
{
#if FLAC__HAS_OGG
	decoder->private_->is_ogg = false;
#endif
	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;

	memset(decoder->private_->metadata_filter, 0, sizeof(decoder->private_->metadata_filter));
	decoder->private_->metadata_filter[FLAC__METADATA_TYPE_STREAMINFO] = true;
	decoder->private_->metadata_filter_ids_count = 0;

	decoder->protected_->md5_checking = false;

#if FLAC__HAS_OGG
	FLAC__ogg_decoder_aspect_set_defaults(&decoder->protected_->ogg_decoder_aspect);
#endif
}

Project: Android
File: stream_decoder.c

FLAC__StreamDecoderWriteStatus write_audio_frame_to_client_(FLAC__StreamDecoder *decoder, const FLAC__Frame *frame, const FLAC__int32 * const buffer[])
{
 if(decoder->private_->is_seeking) {
		FLAC__uint64 this_frame_sample = frame->header.number.sample_number;
		FLAC__uint64 next_frame_sample = this_frame_sample + (FLAC__uint64)frame->header.blocksize;
		FLAC__uint64 target_sample = decoder->private_->target_sample;

		FLAC__ASSERT(frame->header.number_type == FLAC__FRAME_NUMBER_TYPE_SAMPLE_NUMBER);

#if FLAC__HAS_OGG
		decoder->private_->got_a_frame = true;
#endif
		decoder->private_->last_frame = *frame; /* save the frame */
 if(this_frame_sample <= target_sample && target_sample < next_frame_sample) { /* we hit our target frame */
 unsigned delta = (unsigned)(target_sample - this_frame_sample);
 /* kick out of seek mode */
			decoder->private_->is_seeking = false;
 /* shift out the samples before target_sample */
 if(delta > 0) {
 unsigned channel;
 const FLAC__int32 *newbuffer[FLAC__MAX_CHANNELS];
 for(channel = 0; channel < frame->header.channels; channel++)
					newbuffer[channel] = buffer[channel] + delta;
				decoder->private_->last_frame.header.blocksize -= delta;
				decoder->private_->last_frame.header.number.sample_number += (FLAC__uint64)delta;
 /* write the relevant samples */
 return decoder->private_->write_callback(decoder, &decoder->private_->last_frame, newbuffer, decoder->private_->client_data);
 }
 else {
 /* write the relevant samples */
 return decoder->private_->write_callback(decoder, frame, buffer, decoder->private_->client_data);
 }
 }
 else {
 return FLAC__STREAM_DECODER_WRITE_STATUS_CONTINUE;
 }
 }
 else {
 /*
		 * If we never got STREAMINFO, turn off MD5 checking to save
		 * cycles since we don't have a sum to compare to anyway
		 */
 if(!decoder->private_->has_stream_info)
			decoder->private_->do_md5_checking = false;
 if(decoder->private_->do_md5_checking) {
 if(!FLAC__MD5Accumulate(&decoder->private_->md5context, buffer, frame->header.channels, frame->header.blocksize, (frame->header.bits_per_sample+7) / 8))
 return FLAC__STREAM_DECODER_WRITE_STATUS_ABORT;
 }
 return decoder->private_->write_callback(decoder, frame, buffer, decoder->private_->client_data);
 }
}