diff options
Diffstat (limited to 'apps/plugins/codecflac.c')
| -rw-r--r-- | apps/plugins/codecflac.c | 248 |
1 files changed, 0 insertions, 248 deletions
diff --git a/apps/plugins/codecflac.c b/apps/plugins/codecflac.c deleted file mode 100644 index 1cc95b3..0000000 --- a/apps/plugins/codecflac.c +++ /dev/null @@ -1,248 +0,0 @@ -/*************************************************************************** - * __________ __ ___. - * Open \______ \ ____ ____ | | _\_ |__ _______ ___ - * Source | _// _ \_/ ___\| |/ /| __ \ / _ \ \/ / - * Jukebox | | ( <_> ) \___| < | \_\ ( <_> > < < - * Firmware |____|_ /\____/ \___ >__|_ \|___ /\____/__/\_ \ - * \/ \/ \/ \/ \/ - * $Id$ - * - * Copyright (C) 2002 Björn Stenberg - * - * All files in this archive are subject to the GNU General Public License. - * See the file COPYING in the source tree root for full license agreement. - * - * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY - * KIND, either express or implied. - * - ****************************************************************************/ - -#include "plugin.h" - -#include <codecs/libFLAC/include/FLAC/seekable_stream_decoder.h> -#include "playback.h" -#include "lib/codeclib.h" - -#define FLAC_MAX_SUPPORTED_BLOCKSIZE 4608 -#define FLAC_MAX_SUPPORTED_CHANNELS 2 - -static struct plugin_api* rb; -static uint32_t samplesdone; - -/* Called when the FLAC decoder needs some FLAC data to decode */ -FLAC__SeekableStreamDecoderReadStatus flac_read_handler(const FLAC__SeekableStreamDecoder *dec, - FLAC__byte buffer[], unsigned *bytes, void *data) -{ struct codec_api* ci = (struct codec_api*)data; - (void)dec; - - *bytes=(unsigned)(ci->read_filebuf(buffer,*bytes)); - - if (*bytes==0) { - return FLAC__STREAM_DECODER_READ_STATUS_END_OF_STREAM; - } else { - return FLAC__STREAM_DECODER_READ_STATUS_CONTINUE; - } -} - -static unsigned char pcmbuf[FLAC_MAX_SUPPORTED_BLOCKSIZE*FLAC_MAX_SUPPORTED_CHANNELS*2] IDATA_ATTR; - -/* Called when the FLAC decoder has some decoded PCM data to write */ -FLAC__StreamDecoderWriteStatus flac_write_handler(const FLAC__SeekableStreamDecoder *dec, - const FLAC__Frame *frame, - const FLAC__int32 * const buf[], - void *data) -{ - struct codec_api* ci = (struct codec_api*)data; - (void)dec; - unsigned int c_samp, c_chan, d_samp; - uint32_t data_size = frame->header.blocksize * frame->header.channels * 2; /* Assume 16-bit words */ - uint32_t samples = frame->header.blocksize; - int yieldcounter = 0; - - - if (samples*frame->header.channels > (FLAC_MAX_SUPPORTED_BLOCKSIZE*FLAC_MAX_SUPPORTED_CHANNELS)) { - // ERROR!!! - DEBUGF("ERROR: samples*frame->header.channels=%d\n",samples*frame->header.channels); - return(FLAC__STREAM_DECODER_WRITE_STATUS_CONTINUE); - } - - (void)dec; - for(c_samp = d_samp = 0; c_samp < samples; c_samp++) { - for(c_chan = 0; c_chan < frame->header.channels; c_chan++, d_samp++) { - pcmbuf[d_samp*2] = (buf[c_chan][c_samp]&0xff00)>>8; - pcmbuf[(d_samp*2)+1] = buf[c_chan][c_samp]&0xff; - if (yieldcounter++ == 100) { - rb->yield(); - yieldcounter = 0; - } - } - } - - samplesdone+=samples; - ci->set_elapsed(samplesdone/(ci->id3->frequency/1000)); - - rb->yield(); - while (!ci->audiobuffer_insert(pcmbuf, data_size)) - rb->yield(); - - return FLAC__STREAM_DECODER_WRITE_STATUS_CONTINUE; -} - -void flac_metadata_handler(const FLAC__SeekableStreamDecoder *dec, - const FLAC__StreamMetadata *meta, void *data) -{ - /* Ignore metadata for now... */ - (void)dec; - (void)meta; - (void)data; -} - - -void flac_error_handler(const FLAC__SeekableStreamDecoder *dec, - FLAC__StreamDecoderErrorStatus status, void *data) -{ - (void)dec; - (void)status; - (void)data; -} - -FLAC__SeekableStreamDecoderSeekStatus flac_seek_handler (const FLAC__SeekableStreamDecoder *decoder, - FLAC__uint64 absolute_byte_offset, - void *client_data) -{ - (void)decoder; - struct codec_api* ci = (struct codec_api*)client_data; - - if (ci->seek_buffer(absolute_byte_offset)) { - return(FLAC__SEEKABLE_STREAM_DECODER_SEEK_STATUS_OK); - } else { - return(FLAC__SEEKABLE_STREAM_DECODER_SEEK_STATUS_ERROR); - } -} - -FLAC__SeekableStreamDecoderTellStatus flac_tell_handler (const FLAC__SeekableStreamDecoder *decoder, - FLAC__uint64 *absolute_byte_offset, void *client_data) -{ - struct codec_api* ci = (struct codec_api*)client_data; - - (void)decoder; - *absolute_byte_offset=ci->curpos; - return(FLAC__SEEKABLE_STREAM_DECODER_TELL_STATUS_OK); -} - -FLAC__SeekableStreamDecoderLengthStatus flac_length_handler (const FLAC__SeekableStreamDecoder *decoder, - FLAC__uint64 *stream_length, void *client_data) -{ - struct codec_api* ci = (struct codec_api*)client_data; - - (void)decoder; - *stream_length=ci->filesize; - return(FLAC__SEEKABLE_STREAM_DECODER_LENGTH_STATUS_OK); -} - -FLAC__bool flac_eof_handler (const FLAC__SeekableStreamDecoder *decoder, - void *client_data) -{ - struct codec_api* ci = (struct codec_api*)client_data; - - (void)decoder; - if (ci->curpos >= ci->filesize) { - return(true); - } else { - return(false); - } -} - -#ifndef SIMULATOR -extern char iramcopy[]; -extern char iramstart[]; -extern char iramend[]; -#endif - -/* this is the plugin entry point */ -enum plugin_status plugin_start(struct plugin_api* api, void* parm) -{ - struct codec_api* ci = (struct codec_api*)parm; - FLAC__SeekableStreamDecoder* flacDecoder; - - /* Generic plugin initialisation */ - TEST_PLUGIN_API(api); - - /* if you are using a global api pointer, don't forget to copy it! - otherwise you will get lovely "I04: IllInstr" errors... :-) */ - rb = api; - -#ifndef SIMULATOR - rb->memcpy(iramstart, iramcopy, iramend-iramstart); -#endif - - ci->configure(CODEC_SET_FILEBUF_LIMIT, (int *)(1024*1024*10)); - ci->configure(CODEC_SET_FILEBUF_WATERMARK, (int *)(1024*512)); - ci->configure(CODEC_SET_FILEBUF_CHUNKSIZE, (int *)(1024*128)); - - next_track: - - if (codec_init(api, ci)) { - return PLUGIN_ERROR; - } - - /* Create a decoder instance */ - - flacDecoder=FLAC__seekable_stream_decoder_new(); - - /* Set up the decoder and the callback functions - this must be done before init */ - - /* The following are required for stream_decoder and higher */ - FLAC__seekable_stream_decoder_set_client_data(flacDecoder,ci); - FLAC__seekable_stream_decoder_set_write_callback(flacDecoder, flac_write_handler); - FLAC__seekable_stream_decoder_set_read_callback(flacDecoder, flac_read_handler); - FLAC__seekable_stream_decoder_set_metadata_callback(flacDecoder, flac_metadata_handler); - FLAC__seekable_stream_decoder_set_error_callback(flacDecoder, flac_error_handler); - FLAC__seekable_stream_decoder_set_metadata_respond(flacDecoder, FLAC__METADATA_TYPE_STREAMINFO); - - /* The following are only for the seekable_stream_decoder */ - FLAC__seekable_stream_decoder_set_seek_callback(flacDecoder, flac_seek_handler); - FLAC__seekable_stream_decoder_set_tell_callback(flacDecoder, flac_tell_handler); - FLAC__seekable_stream_decoder_set_length_callback(flacDecoder, flac_length_handler); - FLAC__seekable_stream_decoder_set_eof_callback(flacDecoder, flac_eof_handler); - - - /* QUESTION: What do we do when the init fails? */ - if (FLAC__seekable_stream_decoder_init(flacDecoder)) { - return PLUGIN_ERROR; - } - - /* The first thing to do is to parse the metadata */ - FLAC__seekable_stream_decoder_process_until_end_of_metadata(flacDecoder); - - samplesdone=0; - ci->set_elapsed(0); - /* The main decoder loop */ - while (FLAC__seekable_stream_decoder_get_state(flacDecoder)!=FLAC__SEEKABLE_STREAM_DECODER_END_OF_STREAM) { - rb->yield(); - if (ci->stop_codec || ci->reload_codec) { - break; - } - - if (ci->seek_time) { - int sample_loc; - - sample_loc = ci->seek_time/1000 * ci->id3->frequency; - if (FLAC__seekable_stream_decoder_seek_absolute(flacDecoder,sample_loc)) { - samplesdone=sample_loc; - ci->set_elapsed(samplesdone/(ci->id3->frequency/1000)); - } - ci->seek_time = 0; - } - - FLAC__seekable_stream_decoder_process_single(flacDecoder); - } - - /* Flush the libFLAC buffers */ - FLAC__seekable_stream_decoder_finish(flacDecoder); - - if (ci->request_next_track()) - goto next_track; - - return PLUGIN_OK; -} |