[Mplayer-cvslog] CVS: main/libao2 ao_arts.c,1.1,1.2

[Atmosfear]

Update of /cvsroot/mplayer/main/libao2
In directory mail:/var/tmp.root/cvs-serv10062/libao2

Modified Files:
	ao_arts.c 
Log Message:
Improved ao_arts delay and buff er handling, patch by Szombathelyi Gy|rgy <gyurco at freemail.hu>


Index: ao_arts.c
===================================================================
RCS file: /cvsroot/mplayer/main/libao2/ao_arts.c,v
retrieving revision 1.1
retrieving revision 1.2
diff -u -r1.1 -r1.2
--- ao_arts.c	28 May 2002 01:52:40 -0000	1.1
+++ ao_arts.c	26 Jul 2002 00:02:31 -0000	1.2
@@ -18,6 +18,10 @@
 
 #define OBTAIN_BITRATE(a) (((a != AFMT_U8) || (a != AFMT_S8)) ? 16 : 8)
 
+/* Feel free to experiment with the following values: */
+#define ARTS_PACKETS 10 /* Number of audio packets */
+#define ARTS_PACKET_SIZE_LOG2 11 /* Log2 of audio packet size */
+
 static arts_stream_t stream;
 
 static ao_info_t info =
@@ -44,34 +48,36 @@
 		mp_msg(MSGT_AO, MSGL_ERR, "AO: [arts] %s\n", arts_error_text(err));
 		return 0;
 	}
-
-	else
-		mp_msg(MSGT_AO, MSGL_INFO, "AO: [arts] Connected to sound server\n");
+	mp_msg(MSGT_AO, MSGL_INFO, "AO: [arts] Connected to sound server\n");
 
 	ao_data.format = format;
 	ao_data.channels = channels;
 	ao_data.samplerate = rate_hz;
 	ao_data.bps = (rate_hz*channels);
-	ao_data.buffersize = 4096;
 
 	if(format != AFMT_U8 && format != AFMT_S8)
 		ao_data.bps*=2;
 
-	for (frag_spec = 0; (0x01<<frag_spec) < ao_data.buffersize; ++frag_spec)
-		;
-	frag_spec |= 0x00020000;
 	stream=arts_play_stream(rate_hz, OBTAIN_BITRATE(format), channels, "Mplayer");
-	arts_stream_set(stream, ARTS_P_PACKET_SETTINGS, frag_spec);
-	arts_stream_set(stream, ARTS_P_BLOCKING, 0);
 
 	if(stream == NULL) {
 		mp_msg(MSGT_AO, MSGL_ERR, "AO: [arts] Unable to open a stream\n");
+		arts_free();
 		return 0;
 	}
 
-	else
-		mp_msg(MSGT_AO, MSGL_INFO, "AO: [arts] Stream opened\n");
+	/* Set the stream to blocking: it will not block anyway, but it seems */
+	/* to be working better */
+	arts_stream_set(stream, ARTS_P_BLOCKING, 1);
+	frag_spec = ARTS_PACKET_SIZE_LOG2 | ARTS_PACKETS << 16;
+	arts_stream_set(stream, ARTS_P_PACKET_SETTINGS, frag_spec);
+	ao_data.buffersize = arts_stream_get(stream, ARTS_P_BUFFER_SIZE);
+	mp_msg(MSGT_AO, MSGL_INFO, "AO: [arts] Stream opened\n");
 
+	mp_msg(MSGT_AO, MSGL_INFO,"AO: [arts] buffer size: %d\n",
+	    ao_data.buffersize);
+	mp_msg(MSGT_AO, MSGL_INFO,"AO: [arts] packet size: %d\n",
+	    arts_stream_get(stream, ARTS_P_PACKET_SIZE));
 
 	return 1;
 }
@@ -84,7 +90,7 @@
 
 static int play(void* data,int len,int flags)
 {
-	arts_write(stream, data, len);
+	return arts_write(stream, data, len);
 }
 
 static void audio_pause()
@@ -106,12 +112,7 @@
 
 static float get_delay()
 {
-	return ((float) arts_stream_get(stream, ARTS_P_BUFFER_SIZE) / (float) ao_data.bps);
+	return ((float) (ao_data.buffersize - arts_stream_get(stream,
+		ARTS_P_BUFFER_SPACE))) / ((float) ao_data.bps);
 }
-
-
-
-
-
-