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authorWarren Dukes <warren.dukes@gmail.com>2004-06-10 19:48:53 +0000
committerWarren Dukes <warren.dukes@gmail.com>2004-06-10 19:48:53 +0000
commit3b1efb55883a2382d6971f947767a02b1ee28ea2 (patch)
treeb6b5819f97e2875fb6fdba00926760ae00b56fa9 /src/decode.c
parent491027a5fcdb0c9e6c13362adc2a026360bf2a50 (diff)
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minor little cleanups
git-svn-id: https://svn.musicpd.org/mpd/trunk@1439 09075e82-0dd4-0310-85a5-a0d7c8717e4f
Diffstat (limited to '')
-rw-r--r--src/decode.c41
1 files changed, 24 insertions, 17 deletions
diff --git a/src/decode.c b/src/decode.c
index 17dad4659..eeaf74ba4 100644
--- a/src/decode.c
+++ b/src/decode.c
@@ -161,16 +161,16 @@ int waitOnDecode(PlayerControl * pc, DecoderControl * dc, OutputBuffer * cb,
}
int decodeSeek(PlayerControl * pc, DecoderControl * dc, OutputBuffer * cb,
- int * decodeWaitedOn)
+ int * decodeWaitedOn, int * next)
{
int ret = -1;
if(decode_pid && *decode_pid>0) {
- cb->next = -1;
if(dc->state==DECODE_STATE_STOP || dc->error ||
strcmp(dc->utf8url, pc->utf8url)!=0)
{
stopDecode(dc);
+ *next = -1;
cb->begin = 0;
cb->end = 0;
dc->error = 0;
@@ -180,6 +180,7 @@ int decodeSeek(PlayerControl * pc, DecoderControl * dc, OutputBuffer * cb,
if(*decode_pid>0 && dc->state!=DECODE_STATE_STOP &&
dc->seekable)
{
+ *next = -1;
dc->seekWhere = pc->seekWhere > pc->totalTime-0.1 ?
pc->totalTime-0.1 :
pc->seekWhere;
@@ -230,7 +231,7 @@ int decodeSeek(PlayerControl * pc, DecoderControl * dc, OutputBuffer * cb,
if(pause) closeAudioDevice(); \
} \
if(pc->seek) { \
- if(decodeSeek(pc,dc,cb,&decodeWaitedOn) == 0) { \
+ if(decodeSeek(pc,dc,cb,&decodeWaitedOn,&next) == 0) { \
doCrossFade = 0; \
nextChunk = -1; \
bbp = 0; \
@@ -445,6 +446,8 @@ void decodeParent(PlayerControl * pc, DecoderControl * dc, OutputBuffer * cb) {
int previousMetadataChunk = -1;
MetadataChunk currentMetadataChunk;
int currentChunkSent = 1;
+ int end;
+ int next = -1;
memset(silence,0,CHUNK_SIZE);
@@ -472,12 +475,12 @@ void decodeParent(PlayerControl * pc, DecoderControl * dc, OutputBuffer * cb) {
pc->queueState==PLAYER_QUEUE_FULL &&
pc->queueLockState==PLAYER_QUEUE_UNLOCKED)
{
- cb->next = cb->end;
+ next = cb->end;
dc->start = 1;
pc->queueState = PLAYER_QUEUE_DECODE;
kill(getppid(),SIGUSR1);
}
- if(cb->next>=0 && doCrossFade==0 && !dc->start) {
+ if(next>=0 && doCrossFade==0 && !dc->start) {
nextChunk = -1;
if(isCurrentAudioFormat(&(cb->audioFormat))) {
doCrossFade = 1;
@@ -492,21 +495,26 @@ void decodeParent(PlayerControl * pc, DecoderControl * dc, OutputBuffer * cb) {
}
else doCrossFade = -1;
}
+
+ /* copy thse to locale variables to prevent any potential
+ race conditions and weirdness */
+ end = cb->end;
+
if(pause) my_usleep(10000);
- else if(cb->begin!=cb->end && cb->begin!=cb->next) {
- if(doCrossFade==1 && cb->next>=0 &&
- ((cb->next>cb->begin &&
- (fadePosition=cb->next-cb->begin)
+ else if(cb->begin!=end && cb->begin!=next) {
+ if(doCrossFade==1 && next>=0 &&
+ ((next>cb->begin &&
+ (fadePosition=next-cb->begin)
<=crossFadeChunks) ||
- (cb->begin>cb->next &&
- (fadePosition=cb->next-cb->begin+
+ (cb->begin>next &&
+ (fadePosition=next-cb->begin+
buffered_chunks)<=crossFadeChunks)))
{
if(nextChunk<0) {
crossFadeChunks = fadePosition;
}
- test = cb->end;
- if(cb->end < cb->begin) test+=buffered_chunks;
+ test = end;
+ if(end < cb->begin) test+=buffered_chunks;
nextChunk = cb->begin+crossFadeChunks;
if(nextChunk<test) {
if(nextChunk>=buffered_chunks)
@@ -558,11 +566,11 @@ void decodeParent(PlayerControl * pc, DecoderControl * dc, OutputBuffer * cb) {
cb->begin = 0;
}
}
- else if(cb->next==cb->begin) {
+ else if(next==cb->begin) {
if(doCrossFade==1 && nextChunk>=0) {
nextChunk = cb->begin+crossFadeChunks;
test = cb->end;
- if(cb->end < cb->begin) test+=buffered_chunks;
+ if(end < cb->begin) test+=buffered_chunks;
if(nextChunk<test) {
if(nextChunk>=buffered_chunks)
{
@@ -590,7 +598,7 @@ void decodeParent(PlayerControl * pc, DecoderControl * dc, OutputBuffer * cb) {
break;
}
else {
- cb->next = -1;
+ next = -1;
if(waitOnDecode(pc,dc,cb,&decodeWaitedOn)<0) {
return;
}
@@ -633,7 +641,6 @@ void decode() {
pc = &(getPlayerData()->playerControl);
dc = &(getPlayerData()->decoderControl);
dc->error = 0;
- cb->next = -1;
dc->seek = 0;
dc->stop = 0;
dc->start = 1;