import from SF CVS

git-svn-id: https://svn.musicpd.org/mpd/trunk@1 09075e82-0dd4-0310-85a5-a0d7c8717e4f

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,
+					&current_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