From a81573ef059ac9f006ea438574b1b7ff751ba55d Mon Sep 17 00:00:00 2001
From: Warren Dukes <warren.dukes@gmail.com>
Date: Wed, 19 May 2004 23:48:34 +0000
Subject: non-blocking seeking, needs some testing! (this is not just for
 streams but new code for files seeking as well)

git-svn-id: https://svn.musicpd.org/mpd/trunk@1099 09075e82-0dd4-0310-85a5-a0d7c8717e4f
---
 src/decode.c | 22 ++++++++++++++--------
 1 file changed, 14 insertions(+), 8 deletions(-)

(limited to 'src/decode.c')

diff --git a/src/decode.c b/src/decode.c
index 45ffd8d97..af5ca2c21 100644
--- a/src/decode.c
+++ b/src/decode.c
@@ -128,7 +128,7 @@ int calculateCrossFadeChunks(PlayerControl * pc, AudioFormat * af) {
 	        pc->channels = dc->audioFormat.channels; \
         } \
         else if(decodeWaitedOn) { \
-                my_usleep(10); \
+                my_usleep(10000); \
                 continue; \
         }
 
@@ -161,7 +161,7 @@ int decodeSeek(PlayerControl * pc, DecoderControl * dc, OutputBuffer * cb,
 {
         int ret = -1;
 
-	if(decode_pid && *decode_pid>0) {
+	if(decode_pid && *decode_pid>0 && !dc->seek) {
 		cb->next = -1;
 		if(dc->state==DECODE_STATE_STOP || dc->error || 
 				strcmp(dc->file,pc->file)!=0) 
@@ -180,13 +180,14 @@ int decodeSeek(PlayerControl * pc, DecoderControl * dc, OutputBuffer * cb,
 						pc->seekWhere;
 			dc->seekWhere = 0 > dc->seekWhere ? 0 : dc->seekWhere;
 			dc->seekError = 0;
+                        dc->seekChunk = -1;
 			dc->seek = 1;
-			pc->bitRate = 0;
-			while(*decode_pid>0 && dc->seek) my_usleep(1000);
-			if(!dc->seekError) {
+			/*pc->bitRate = 0;*/
+			/*while(*decode_pid>0 && dc->seek) my_usleep(1000);*/
+			/*if(!dc->seekError) {*/
                                 ret = 0;
                                 pc->elapsedTime = dc->seekWhere;
-                        }
+                        /*}*/
 		}
 	}
 	pc->seek = 0;
@@ -231,6 +232,7 @@ int decodeSeek(PlayerControl * pc, DecoderControl * dc, OutputBuffer * cb,
 		        doCrossFade = 0; \
 		        nextChunk =  -1; \
 		        bbp = 0; \
+                        seeking = 1; \
                 } \
 	} \
 	if(pc->stop) { \
@@ -254,7 +256,6 @@ void decodeStart(PlayerControl * pc, OutputBuffer * cb, DecoderControl * dc) {
                 return;
         }
 
-	dc->seekable = inStream.seekable;
         dc->state = DECODE_STATE_START;
 	dc->start = 0;
 
@@ -386,6 +387,7 @@ void decodeParent(PlayerControl * pc, DecoderControl * dc, OutputBuffer * cb) {
 	int test;
         int decodeWaitedOn = 0;
 	char silence[CHUNK_SIZE];
+        int seeking = 0;
 
 	memset(silence,0,CHUNK_SIZE);
 
@@ -407,6 +409,10 @@ void decodeParent(PlayerControl * pc, DecoderControl * dc, OutputBuffer * cb) {
 	while(!quit) {
 		processDecodeInput();
                 handleDecodeStart();
+                if(!dc->seek && seeking) {
+                        if(dc->seekChunk >= 0) cb->begin = dc->seekChunk;
+                        seeking = 0;
+                }
 		if(dc->state==DECODE_STATE_STOP && 
 			pc->queueState==PLAYER_QUEUE_FULL &&
 			pc->queueLockState==PLAYER_QUEUE_UNLOCKED) 
@@ -481,7 +487,7 @@ void decodeParent(PlayerControl * pc, DecoderControl * dc, OutputBuffer * cb) {
 					else continue;
 				}
 			}
-			pc->elapsedTime = cb->times[cb->begin];
+			if(!seeking) pc->elapsedTime = cb->times[cb->begin];
 			pc->bitRate = cb->bitRate[cb->begin];
 			pcm_volumeChange(cb->chunks+cb->begin*
 				CHUNK_SIZE,
-- 
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