import from SF CVS

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

1 files changed, 138 insertions, 0 deletions

diff --git a/src/audiofile_decode.c b/src/audiofile_decode.c
new file mode 100644
index 000000000..717237227
--- /dev/null
+++ b/src/audiofile_decode.c
@@ -0,0 +1,138 @@
+/* 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
+ * 
+ * libaudiofile (wave) support added by Eric Wong <normalperson@yhbt.net>
+ * 
+ * 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_AUDIOFILE
+
+#include "audiofile_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 <audiofile.h>
+
+int getAudiofileTotalTime(char * file)
+{
+	int time;
+	AFfilehandle af_fp = afOpenFile(file, "r", NULL);
+	if(af_fp == AF_NULL_FILEHANDLE) {
+		return -1;
+	}
+	time = (int)
+		((double)afGetFrameCount(af_fp,AF_DEFAULT_TRACK)
+		 /afGetRate(af_fp,AF_DEFAULT_TRACK));
+	afCloseFile(af_fp);
+	return time;
+}
+
+int audiofile_decode(Buffer * cb, AudioFormat * af, DecoderControl * dc)
+{
+	int fs, frame_count;
+	AFfilehandle af_fp;
+		
+	af_fp = afOpenFile(dc->file,"r", NULL);
+	if(af_fp == AF_NULL_FILEHANDLE) {
+		ERROR("failed to open %s\n",dc->file);
+		return -1;
+	}
+
+	afGetSampleFormat(af_fp, AF_DEFAULT_TRACK, &fs, &af->bits);
+	af->sampleRate = (int)afGetRate(af_fp, AF_DEFAULT_TRACK);
+	af->channels = afGetChannels(af_fp,AF_DEFAULT_TRACK);
+	
+	frame_count = afGetFrameCount(af_fp,AF_DEFAULT_TRACK);
+	
+	cb->totalTime = ((float)frame_count/(float)af->sampleRate);
+	
+	if (af->bits != 8 && af->bits != 16) {
+		ERROR("Only 8 and 16-bit files are supported. %s is %i-bit\n",
+			dc->file,af->bits);
+		afCloseFile(af_fp);
+		return -1;
+	}
+	
+	fs = (int)afGetFrameSize(af_fp, AF_DEFAULT_TRACK,1);
+
+	dc->state = DECODE_STATE_DECODE;
+	dc->start = 0;
+	{
+		int ret, eof = 0, current = 0;
+		unsigned char chunk[CHUNK_SIZE];
+
+		while(!eof) {
+			if(dc->seek) {
+				cb->end = 0;
+				cb->wrap = 0;
+				current = dc->seekWhere * af->sampleRate;
+				afSeekFrame(af_fp, AF_DEFAULT_TRACK,current);
+				
+				dc->seek = 0;
+			}
+
+			ret = afReadFrames(af_fp, AF_DEFAULT_TRACK, chunk, CHUNK_SIZE/fs);
+			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] = CHUNK_SIZE;
+				
+				current += ret;
+				cb->times[cb->end] = (float)current/(float)af->sampleRate;
+				
+				++cb->end;
+				
+				if(cb->end>=BUFFERED_CHUNKS) {
+					cb->end = 0;
+					cb->wrap = 1;
+				}
+			}
+		}
+
+		if(dc->seek) dc->seek = 0;
+
+		if(dc->stop) {
+			dc->state = DECODE_STATE_STOP;
+			dc->stop = 0;
+		}
+		else dc->state = DECODE_STATE_STOP;
+	}
+	afCloseFile(af_fp);
+
+	return 0;
+}
+
+#endif /* HAVE_AUDIOFILE */