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authorWarren Dukes <warren.dukes@gmail.com>2004-05-07 02:42:49 +0000
committerWarren Dukes <warren.dukes@gmail.com>2004-05-07 02:42:49 +0000
commit9196023f14acf37ee47ac7798029270476d7d3cb (patch)
treed39b76d7fd83687a952b0832b851f0830a06883b /src
parentf5075e1b1153dcc04d3cf7b97aa603fd7f12c366 (diff)
downloadmpd-9196023f14acf37ee47ac7798029270476d7d3cb.tar.gz
mpd-9196023f14acf37ee47ac7798029270476d7d3cb.tar.xz
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some begging code of abstracting out some simple buffer routine(s) for decoders
git-svn-id: https://svn.musicpd.org/mpd/trunk@928 09075e82-0dd4-0310-85a5-a0d7c8717e4f
Diffstat (limited to 'src')
-rw-r--r--src/outputBuffer.c66
1 files changed, 66 insertions, 0 deletions
diff --git a/src/outputBuffer.c b/src/outputBuffer.c
new file mode 100644
index 000000000..507c6fc01
--- /dev/null
+++ b/src/outputBuffer.c
@@ -0,0 +1,66 @@
+/* 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
+ */
+
+#include "outputBuffer.h"
+
+#include "pcm_utils.h"
+#include "playerData.h"
+#include "log.h"
+#include "utils.h"
+
+#include <string.h>
+#include <errno.h>
+
+#define OUTPUT_BUFFER_DC_STOP -1
+#define OUTPUT_BUFFER_DC_SEEK -2
+
+long sendDataToOutputBuffer(Buffer * cb, DecoderControl * dc, int flushAllData,
+ char * data, long datalen, float time, mpd_uint16 bitRate)
+{
+ long dataSent = 0;
+ long dataToSend;
+
+ while(datalen >= CHUNK_SIZE || (flushAllData && datalen)) {
+ dataToSend = datalen > CHUNK_SIZE ? CHUNK_SIZE : datalen;
+
+ while(cb->begin==cb->end && cb->wrap && !dc->stop && !dc->seek)
+ my_usleep(10000);
+ if(dc->stop) return OUTPUT_BUFFER_DC_STOP;
+ /* just for now, so it doesn't hang */
+ if(dc->seek) return OUTPUT_BUFFER_DC_SEEK;
+ /* be sure to remove this! */
+
+ memcpy(cb->chunks+cb->end*CHUNK_SIZE,data,dataToSend);
+ cb->chunkSize[cb->end] = dataToSend;
+ cb->bitRate[cb->end] = bitRate;
+ cb->times[cb->end] = time;
+
+ cb->end++;
+ if(cb->end>=buffered_chunks) {
+ cb->end = 0;
+ cb->wrap = 1;
+ }
+
+ datalen-= dataToSend;
+ dataSent+= dataToSend;
+ data+= dataToSend;
+ }
+
+ return dataSent;
+}
+/* vim:set shiftwidth=4 tabstop=8 expandtab: */