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author | Warren Dukes <warren.dukes@gmail.com> | 2004-02-23 23:41:20 +0000 |
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committer | Warren Dukes <warren.dukes@gmail.com> | 2004-02-23 23:41:20 +0000 |
commit | d35747a40c7dea12de95f78a4f283a45ef687597 (patch) | |
tree | 3a85f138e68c7ef3e5a9ece863ed7266ad1cd7ce /src/ogg_decode.c | |
download | mpd-d35747a40c7dea12de95f78a4f283a45ef687597.tar.gz mpd-d35747a40c7dea12de95f78a4f283a45ef687597.tar.xz mpd-d35747a40c7dea12de95f78a4f283a45ef687597.zip |
import from SF CVS
git-svn-id: https://svn.musicpd.org/mpd/trunk@1 09075e82-0dd4-0310-85a5-a0d7c8717e4f
Diffstat (limited to 'src/ogg_decode.c')
-rw-r--r-- | src/ogg_decode.c | 121 |
1 files changed, 121 insertions, 0 deletions
diff --git a/src/ogg_decode.c b/src/ogg_decode.c new file mode 100644 index 000000000..249b3490c --- /dev/null +++ b/src/ogg_decode.c @@ -0,0 +1,121 @@ +/* the Music Player Daemon (MPD) + * (c)2003-2004 by Warren Dukes (shank@mercury.chem.pitt.edu) + * This project's homepage is: http://www.musicpd.org + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA + */ + +#ifdef HAVE_OGG +#include "ogg_decode.h" + +#include "command.h" +#include "utils.h" +#include "audio.h" +#include "log.h" +#include "pcm_utils.h" + +#include <stdio.h> +#include <unistd.h> +#include <stdlib.h> +#include <string.h> +#include <vorbis/vorbisfile.h> + +int ogg_decode(Buffer * cb, AudioFormat * af, DecoderControl * dc) +{ + OggVorbis_File vf; + FILE * oggfp; + + if(!(oggfp = fopen(dc->file,"r"))) { + ERROR("failed to open ogg\n"); + return -1; + } + + if(ov_open(oggfp, &vf, NULL, 0) < 0) { + ERROR("Input does not appear to be an Ogg bit stream.\n"); + fclose(oggfp); + return -1; + } + + { + vorbis_info *vi=ov_info(&vf,-1); + af->bits = 16; + af->channels = vi->channels; + af->sampleRate = vi->rate; + } + + cb->totalTime = ov_time_total(&vf,-1); + dc->state = DECODE_STATE_DECODE; + dc->start = 0; + + { + int current_section; + int eof = 0; + long ret; + char chunk[CHUNK_SIZE]; + long bitRate = 0; + long test; + + while(!eof) { + if(dc->seek) { + cb->end = 0; + cb->wrap = 0; + ov_time_seek_page(&vf,dc->seekWhere); + dc->seek = 0; + } + ret = ov_read(&vf,chunk,CHUNK_SIZE,0,2,1, + ¤t_section); + if(ret<=0) eof = 1; + else { + while(cb->begin==cb->end && cb->wrap && + !dc->stop && !dc->seek) + { + usleep(1000); + } + if(dc->stop) break; + else if(dc->seek) continue; +#ifdef WORDS_BIGENDIAN + pcm_changeBufferEndianness(chunk,CHUNK_SIZE, + af->bits); +#endif + memcpy(cb->chunks+cb->end*CHUNK_SIZE, + chunk,CHUNK_SIZE); + cb->chunkSize[cb->end] = ret; + cb->times[cb->end] = ov_time_tell(&vf); + if((test = ov_bitrate_instant(&vf))>0) { + bitRate = test/1000; + } + cb->bitRate[cb->end] = bitRate; + cb->end++; + if(cb->end>=BUFFERED_CHUNKS) { + cb->end = 0; + cb->wrap = 1; + } + } + } + + ov_clear(&vf); + + if(dc->seek) dc->seek = 0; + + if(dc->stop) { + dc->state = DECODE_STATE_STOP; + dc->stop = 0; + } + else dc->state = DECODE_STATE_STOP; + } + + return 0; +} + +#endif |