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revamp decoder process calls

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This commit is contained in:
Josh Coalson
2002-08-02 06:12:36 +00:00
parent ebece62ea1
commit cfdfc82801
14 changed files with 283 additions and 355 deletions
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146
src/libFLAC/stream_decoder.c
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@@ -258,7 +258,10 @@ FLAC__StreamDecoderState FLAC__stream_decoder_init(FLAC__StreamDecoder *decoder)
}
#endif
return decoder->protected_->state = FLAC__STREAM_DECODER_SEARCH_FOR_METADATA;
if(!FLAC__stream_decoder_reset(decoder))
return decoder->protected_->state = FLAC__STREAM_DECODER_MEMORY_ALLOCATION_ERROR;
return decoder->protected_->state;
}
void FLAC__stream_decoder_finish(FLAC__StreamDecoder *decoder)
@@ -528,95 +531,23 @@ FLAC__bool FLAC__stream_decoder_reset(FLAC__StreamDecoder *decoder)
return true;
}
FLAC__bool FLAC__stream_decoder_process_whole_stream(FLAC__StreamDecoder *decoder)
{
FLAC__bool dummy;
FLAC__ASSERT(0 != decoder);
if(decoder->protected_->state == FLAC__STREAM_DECODER_END_OF_STREAM)
return true;
FLAC__ASSERT(decoder->protected_->state == FLAC__STREAM_DECODER_SEARCH_FOR_METADATA);
if(!FLAC__stream_decoder_reset(decoder)) {
decoder->protected_->state = FLAC__STREAM_DECODER_MEMORY_ALLOCATION_ERROR;
return false;
}
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))
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);
}
}
}
FLAC__bool FLAC__stream_decoder_process_metadata(FLAC__StreamDecoder *decoder)
{
FLAC__ASSERT(0 != decoder);
if(decoder->protected_->state == FLAC__STREAM_DECODER_END_OF_STREAM)
return true;
FLAC__ASSERT(decoder->protected_->state == FLAC__STREAM_DECODER_SEARCH_FOR_METADATA);
if(!FLAC__stream_decoder_reset(decoder)) {
decoder->protected_->state = FLAC__STREAM_DECODER_MEMORY_ALLOCATION_ERROR;
return false;
}
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);
}
}
}
FLAC__bool FLAC__stream_decoder_process_one_frame(FLAC__StreamDecoder *decoder)
FLAC__bool FLAC__stream_decoder_process_single(FLAC__StreamDecoder *decoder)
{
FLAC__bool got_a_frame;
FLAC__ASSERT(0 != decoder);
if(decoder->protected_->state == FLAC__STREAM_DECODER_END_OF_STREAM)
return true;
FLAC__ASSERT(decoder->protected_->state == FLAC__STREAM_DECODER_SEARCH_FOR_FRAME_SYNC);
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 */
@@ -632,22 +563,54 @@ FLAC__bool FLAC__stream_decoder_process_one_frame(FLAC__StreamDecoder *decoder)
return true;
default:
FLAC__ASSERT(0);
return false;
}
}
}
FLAC__bool FLAC__stream_decoder_process_remaining_frames(FLAC__StreamDecoder *decoder)
FLAC__bool FLAC__stream_decoder_process_until_end_of_metadata(FLAC__StreamDecoder *decoder)
{
FLAC__bool dummy;
FLAC__ASSERT(0 != decoder);
if(decoder->protected_->state == FLAC__STREAM_DECODER_END_OF_STREAM)
return true;
FLAC__ASSERT(decoder->protected_->state == FLAC__STREAM_DECODER_SEARCH_FOR_FRAME_SYNC);
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;
}
}
}
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 */
@@ -661,6 +624,7 @@ FLAC__bool FLAC__stream_decoder_process_remaining_frames(FLAC__StreamDecoder *de
return true;
default:
FLAC__ASSERT(0);
return false;
}
}
}