claunia/flac
1
0
Fork 0
mirror of https://github.com/claunia/flac.git synced 2025-12-16 18:54:26 +00:00
Code Issues Packages Projects Releases Wiki Activity

new more flexible way of passing metadata to stream encoder

Browse Source
This commit is contained in:
Josh Coalson
2002-06-01 05:39:38 +00:00
parent e7dd048b9c
commit 66075c1585
3 changed files with 48 additions and 73 deletions
Download Patch File Download Diff File Expand all files Collapse all files

64
src/libFLAC/stream_encoder.c
View File

@@ -156,7 +156,7 @@ const char *FLAC__StreamEncoderStateString[] = {
"FLAC__STREAM_ENCODER_BLOCK_SIZE_TOO_SMALL_FOR_LPC_ORDER",
"FLAC__STREAM_ENCODER_NOT_STREAMABLE",
"FLAC__STREAM_ENCODER_FRAMING_ERROR",
"FLAC__STREAM_ENCODER_INVALID_SEEK_TABLE",
"FLAC__STREAM_ENCODER_INVALID_METADATA",
"FLAC__STREAM_ENCODER_FATAL_ERROR_WHILE_ENCODING",
"FLAC__STREAM_ENCODER_FATAL_ERROR_WHILE_WRITING",
"FLAC__STREAM_ENCODER_MEMORY_ALLOCATION_ERROR",
@@ -221,9 +221,8 @@ FLAC__StreamEncoder *FLAC__stream_encoder_new()
encoder->protected_->max_residual_partition_order = 0;
encoder->protected_->rice_parameter_search_dist = 0;
encoder->protected_->total_samples_estimate = 0;
encoder->protected_->seek_table = 0;
encoder->protected_->padding = -1;
encoder->protected_->last_metadata_is_last = true;
encoder->protected_->metadata = 0;
encoder->protected_->num_metadata_blocks = 0;
encoder->private_->write_callback = 0;
encoder->private_->metadata_callback = 0;
@@ -254,8 +253,6 @@ void FLAC__stream_encoder_delete(FLAC__StreamEncoder *encoder)
FLAC__StreamEncoderState FLAC__stream_encoder_init(FLAC__StreamEncoder *encoder)
{
unsigned i;
FLAC__StreamMetaData padding_block;
FLAC__StreamMetaData seek_table_block;
FLAC__ASSERT(encoder != 0);
@@ -333,6 +330,18 @@ FLAC__StreamEncoderState FLAC__stream_encoder_init(FLAC__StreamEncoder *encoder)
if(encoder->protected_->min_residual_partition_order >= encoder->protected_->max_residual_partition_order)
encoder->protected_->min_residual_partition_order = encoder->protected_->max_residual_partition_order;
/* validate metadata */
if(0 == encoder->protected_->metadata && encoder->protected_->num_metadata_blocks > 0)
return encoder->protected_->state = FLAC__STREAM_ENCODER_INVALID_METADATA;
for(i = 0; i < encoder->protected_->num_metadata_blocks; i++) {
if(encoder->protected_->metadata[i]->type == FLAC__METADATA_TYPE_STREAMINFO)
return encoder->protected_->state = FLAC__STREAM_ENCODER_INVALID_METADATA;
else if(encoder->protected_->metadata[i]->type == FLAC__METADATA_TYPE_SEEKTABLE) {
if(!FLAC__seek_table_is_valid(&encoder->protected_->metadata[i]->data.seek_table))
return encoder->protected_->state = FLAC__STREAM_ENCODER_INVALID_METADATA;
}
}
encoder->private_->input_capacity = 0;
for(i = 0; i < encoder->protected_->channels; i++) {
encoder->private_->integer_signal_unaligned[i] = encoder->private_->integer_signal[i] = 0;
@@ -441,7 +450,7 @@ FLAC__StreamEncoderState FLAC__stream_encoder_init(FLAC__StreamEncoder *encoder)
return encoder->protected_->state = FLAC__STREAM_ENCODER_FRAMING_ERROR;
encoder->private_->metadata.type = FLAC__METADATA_TYPE_STREAMINFO;
encoder->private_->metadata.is_last = (encoder->protected_->seek_table == 0 && encoder->protected_->padding < 0 && encoder->protected_->last_metadata_is_last);
encoder->private_->metadata.is_last = (encoder->protected_->num_metadata_blocks == 0);
encoder->private_->metadata.length = FLAC__STREAM_METADATA_STREAMINFO_LENGTH;
encoder->private_->metadata.data.stream_info.min_blocksize = encoder->protected_->blocksize; /* this encoder uses the same blocksize for the whole stream */
encoder->private_->metadata.data.stream_info.max_blocksize = encoder->protected_->blocksize;
@@ -456,23 +465,9 @@ FLAC__StreamEncoderState FLAC__stream_encoder_init(FLAC__StreamEncoder *encoder)
if(!FLAC__add_metadata_block(&encoder->private_->metadata, encoder->private_->frame))
return encoder->protected_->state = FLAC__STREAM_ENCODER_FRAMING_ERROR;
if(0 != encoder->protected_->seek_table) {
if(!FLAC__seek_table_is_valid(encoder->protected_->seek_table))
return encoder->protected_->state = FLAC__STREAM_ENCODER_INVALID_SEEK_TABLE;
seek_table_block.type = FLAC__METADATA_TYPE_SEEKTABLE;
seek_table_block.is_last = (encoder->protected_->padding < 0 && encoder->protected_->last_metadata_is_last);
seek_table_block.length = encoder->protected_->seek_table->num_points * FLAC__STREAM_METADATA_SEEKPOINT_LENGTH;
seek_table_block.data.seek_table = *encoder->protected_->seek_table;
if(!FLAC__add_metadata_block(&seek_table_block, encoder->private_->frame))
return encoder->protected_->state = FLAC__STREAM_ENCODER_FRAMING_ERROR;
}
/* add a PADDING block if requested */
if(encoder->protected_->padding >= 0) {
padding_block.type = FLAC__METADATA_TYPE_PADDING;
padding_block.is_last = encoder->protected_->last_metadata_is_last;
padding_block.length = (unsigned)encoder->protected_->padding;
if(!FLAC__add_metadata_block(&padding_block, encoder->private_->frame))
for(i = 0; i < encoder->protected_->num_metadata_blocks; i++) {
encoder->protected_->metadata[i]->is_last = (i == encoder->protected_->num_metadata_blocks - 1);
if(!FLAC__add_metadata_block(encoder->protected_->metadata[i], encoder->private_->frame))
return encoder->protected_->state = FLAC__STREAM_ENCODER_FRAMING_ERROR;
}
@@ -691,27 +686,12 @@ FLAC__bool FLAC__stream_encoder_set_total_samples_estimate(FLAC__StreamEncoder *
return true;
}
FLAC__bool FLAC__stream_encoder_set_seek_table(FLAC__StreamEncoder *encoder, const FLAC__StreamMetaData_SeekTable *value)
FLAC__bool FLAC__stream_encoder_set_metadata(FLAC__StreamEncoder *encoder, FLAC__StreamMetaData **metadata, unsigned num_blocks)
{
if(encoder->protected_->state != FLAC__STREAM_ENCODER_UNINITIALIZED)
return false;
encoder->protected_->seek_table = value;
return true;
}
FLAC__bool FLAC__stream_encoder_set_padding(FLAC__StreamEncoder *encoder, int value)
{
if(encoder->protected_->state != FLAC__STREAM_ENCODER_UNINITIALIZED)
return false;
encoder->protected_->padding = value;
return true;
}
FLAC__bool FLAC__stream_encoder_set_last_metadata_is_last(FLAC__StreamEncoder *encoder, FLAC__bool value)
{
if(encoder->protected_->state != FLAC__STREAM_ENCODER_UNINITIALIZED)
return false;
encoder->protected_->last_metadata_is_last = value;
encoder->protected_->metadata = metadata;
encoder->protected_->num_metadata_blocks = num_blocks;
return true;
}