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try to make seeking more non-blocking

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git-svn-id: https://svn.musicpd.org/mpd/trunk@1076 09075e82-0dd4-0310-85a5-a0d7c8717e4f
This commit is contained in:
Warren Dukes
2004-05-19 02:14:20 +00:00
parent bf9e2afbf9
commit c180d2f95e
8 changed files with 251 additions and 225 deletions
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5
src/aac_decode.c
View File

@@ -341,13 +341,12 @@ int aac_decode(OutputBuffer * cb, DecoderControl * dc) {
sampleRate = frameInfo.samplerate;
#endif
if(dc->start) {
if(dc->state != DECODE_STATE_DECODE) {
dc->audioFormat.channels = frameInfo.channels;
dc->audioFormat.sampleRate = sampleRate;
getOutputAudioFormat(&(dc->audioFormat),
&(cb->audioFormat));
dc->state = DECODE_STATE_DECODE;
dc->start = 0;
}
advanceAacBuffer(&b,frameInfo.bytesconsumed);
@@ -382,7 +381,7 @@ int aac_decode(OutputBuffer * cb, DecoderControl * dc) {
closeInputStream(b.inStream);
if(b.buffer) free(b.buffer);
if(dc->start) return -1;
if(dc->state != DECODE_STATE_DECODE) return -1;
if(!dc->stop && !dc->seek && chunkLen>0) {
cb->chunkSize[cb->end] = chunkLen;

1
src/audiofile_decode.c
View File

@@ -91,7 +91,6 @@ int audiofile_decode(OutputBuffer * cb, DecoderControl * dc) {
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];

459
src/decode.c
View File

@@ -79,7 +79,7 @@ void decodeSigHandler(int sig) {
void stopDecode(DecoderControl * dc) {
if(decode_pid && *decode_pid>0 &&
(dc->start || dc->state==DECODE_STATE_DECODE))
(dc->start || dc->state!=DECODE_STATE_STOP))
{
dc->stop = 1;
while(decode_pid && *decode_pid>0 && dc->stop) my_usleep(1000);
@@ -112,7 +112,29 @@ int calculateCrossFadeChunks(PlayerControl * pc, AudioFormat * af) {
return (int)chunks;
}
int waitOnDecode(PlayerControl * pc, DecoderControl * dc, OutputBuffer * cb) {
#define handleDecodeStart() \
if(decodeWaitedOn && dc->state==DECODE_STATE_DECODE) { \
decodeWaitedOn = 1; \
if(openAudioDevice(&(cb->audioFormat))<0) { \
strncpy(pc->erroredFile,pc->file,MAXPATHLEN); \
pc->erroredFile[MAXPATHLEN] = '\0'; \
pc->error = PLAYER_ERROR_AUDIO; \
quitDecode(pc,dc); \
return; \
} \
pc->totalTime = dc->totalTime; \
pc->sampleRate = dc->audioFormat.sampleRate; \
pc->bits = dc->audioFormat.bits; \
pc->channels = dc->audioFormat.channels; \
} \
else { \
my_usleep(10); \
continue; \
}
int waitOnDecode(PlayerControl * pc, DecoderControl * dc, OutputBuffer * cb,
int * decodeWaitedOn)
{
while(decode_pid && *decode_pid>0 && dc->start) my_usleep(1000);
if(dc->start || dc->error!=DECODE_ERROR_NOERROR) {
@@ -123,28 +145,25 @@ int waitOnDecode(PlayerControl * pc, DecoderControl * dc, OutputBuffer * cb) {
return -1;
}
if(openAudioDevice(&(cb->audioFormat))<0) {
strncpy(pc->erroredFile,pc->file,MAXPATHLEN);
pc->erroredFile[MAXPATHLEN] = '\0';
pc->error = PLAYER_ERROR_AUDIO;
quitDecode(pc,dc);
return -1;
}
pc->totalTime = dc->totalTime;
pc->elapsedTime = 0;
pc->bitRate = 0;
pc->sampleRate = dc->audioFormat.sampleRate;
pc->bits = dc->audioFormat.bits;
pc->channels = dc->audioFormat.channels;
pc->totalTime = pc->fileTime;
pc->elapsedTime = 0;
pc->bitRate = 0;
pc->sampleRate = 0;
pc->bits = 0;
pc->channels = 0;
*decodeWaitedOn = 1;
return 0;
}
void decodeSeek(PlayerControl * pc, DecoderControl * dc, OutputBuffer * cb) {
int decodeSeek(PlayerControl * pc, DecoderControl * dc, OutputBuffer * cb,
int * decodeWaitedOn)
{
int ret = -1;
if(decode_pid && *decode_pid>0) {
cb->next = -1;
if(dc->state!=DECODE_STATE_DECODE || dc->error ||
if(dc->state==DECODE_STATE_STOP || dc->error ||
strcmp(dc->file,pc->file)!=0)
{
stopDecode(dc);
@@ -153,9 +172,9 @@ void decodeSeek(PlayerControl * pc, DecoderControl * dc, OutputBuffer * cb) {
cb->wrap = 0;
dc->error = 0;
dc->start = 1;
waitOnDecode(pc,dc,cb);
waitOnDecode(pc,dc,cb,decodeWaitedOn);
}
if(*decode_pid>0 && dc->state==DECODE_STATE_DECODE) {
if(*decode_pid>0 && dc->state!=DECODE_STATE_STOP) {
dc->seekWhere = pc->seekWhere > pc->totalTime-0.1 ?
pc->totalTime-0.1 :
pc->seekWhere;
@@ -164,10 +183,15 @@ void decodeSeek(PlayerControl * pc, DecoderControl * dc, OutputBuffer * cb) {
dc->seek = 1;
pc->bitRate = 0;
while(*decode_pid>0 && dc->seek) my_usleep(1000);
if(!dc->seekError) pc->elapsedTime = dc->seekWhere;
if(!dc->seekError) {
ret = 0;
pc->elapsedTime = dc->seekWhere;
}
}
}
pc->seek = 0;
return ret;
}
#define processDecodeInput() \
@@ -202,11 +226,12 @@ void decodeSeek(PlayerControl * pc, DecoderControl * dc, OutputBuffer * cb) {
} \
if(pc->seek) { \
pc->totalPlayTime+= pc->elapsedTime-pc->beginTime; \
decodeSeek(pc,dc,cb); \
pc->beginTime = pc->elapsedTime; \
doCrossFade = 0; \
nextChunk = -1; \
bbp = 0; \
if(decodeSeek(pc,dc,cb,&decodeWaitedOn) == 0) { \
pc->beginTime = pc->elapsedTime; \
doCrossFade = 0; \
nextChunk = -1; \
bbp = 0; \
} \
} \
if(pc->stop) { \
pc->totalPlayTime+= pc->elapsedTime-pc->beginTime; \
@@ -229,7 +254,17 @@ void decodeStart(PlayerControl * pc, OutputBuffer * cb, DecoderControl * dc) {
return;
}
while(!inputStreamAtEOF(&inStream) && bufferInputStream(&inStream) < 0);
dc->state = DECODE_STATE_START;
dc->start = 0;
while(!inputStreamAtEOF(&inStream) && bufferInputStream(&inStream) < 0
&& !dc->stop);
if(dc->stop) {
dc->state = DECODE_STATE_STOP;
dc->stop = 0;
return;
}
switch(pc->decodeType) {
case DECODE_TYPE_URL:
@@ -339,6 +374,187 @@ int decoderInit(PlayerControl * pc, OutputBuffer * cb, DecoderControl * dc) {
return 0;
}
void decodeParent(PlayerControl * pc, DecoderControl * dc, OutputBuffer * cb) {
int pause = 0;
int quit = 0;
int bbp = buffered_before_play;
int doCrossFade = 0;
int crossFadeChunks = 0;
int fadePosition;
int nextChunk = -1;
int test;
int decodeWaitedOn = 0;
char silence[CHUNK_SIZE];
memset(silence,0,CHUNK_SIZE);
if(waitOnDecode(pc,dc,cb,&decodeWaitedOn)<0) return;
pc->state = PLAYER_STATE_PLAY;
pc->play = 0;
pc->beginTime = pc->elapsedTime;
kill(getppid(),SIGUSR1);
while(*decode_pid>0 && !cb->wrap && cb->end-cb->begin<bbp &&
dc->state!=DECODE_STATE_STOP)
{
processDecodeInput();
if(quit) return;
my_usleep(10000);
}
while(!quit) {
processDecodeInput();
handleDecodeStart();
if(dc->state==DECODE_STATE_STOP &&
pc->queueState==PLAYER_QUEUE_FULL &&
pc->queueLockState==PLAYER_QUEUE_UNLOCKED)
{
cb->next = cb->end;
dc->start = 1;
pc->queueState = PLAYER_QUEUE_DECODE;
kill(getppid(),SIGUSR1);
}
if(cb->next>=0 && doCrossFade==0 && !dc->start) {
nextChunk = -1;
if(isCurrentAudioFormat(&(cb->audioFormat))) {
doCrossFade = 1;
crossFadeChunks =
calculateCrossFadeChunks(pc,
&(cb->audioFormat));
if(!crossFadeChunks ||
pc->crossFade>=dc->totalTime)
{
doCrossFade = -1;
}
}
else doCrossFade = -1;
}
if(pause) my_usleep(10000);
else if((cb->begin!=cb->end || cb->wrap) &&
cb->begin!=cb->next)
{
if(doCrossFade==1 && cb->next>=0 &&
((cb->next>cb->begin &&
(fadePosition=cb->next-cb->begin)
<=crossFadeChunks) ||
(cb->begin>cb->next &&
(fadePosition=cb->next-cb->begin+
buffered_chunks)<=crossFadeChunks)))
{
if(nextChunk<0) {
crossFadeChunks = fadePosition;
}
test = cb->end;
if(cb->wrap) test+=buffered_chunks;
nextChunk = cb->begin+crossFadeChunks;
if(nextChunk<test) {
if(nextChunk>=buffered_chunks)
{
nextChunk -= buffered_chunks;
}
pcm_mix(cb->chunks+cb->begin*CHUNK_SIZE,
cb->chunks+nextChunk*
CHUNK_SIZE,
cb->chunkSize[
cb->begin],
cb->chunkSize[
nextChunk],
&(cb->audioFormat),
((float)fadePosition)/
crossFadeChunks);
if(cb->chunkSize[nextChunk]>
cb->chunkSize[cb->begin]
)
{
cb->chunkSize[cb->begin]
= cb->chunkSize
[nextChunk];
}
}
else {
if(dc->state==DECODE_STATE_STOP)
{
doCrossFade = -1;
}
else continue;
}
}
pc->elapsedTime = cb->times[cb->begin];
pc->bitRate = cb->bitRate[cb->begin];
pcm_volumeChange(cb->chunks+cb->begin*
CHUNK_SIZE,
cb->chunkSize[cb->begin],
&(cb->audioFormat),
pc->softwareVolume);
if(playAudio(cb->chunks+cb->begin*CHUNK_SIZE,
cb->chunkSize[cb->begin])<0)
{
quit = 1;
}
cb->begin++;
if(cb->begin>=buffered_chunks) {
cb->begin = 0;
cb->wrap = 0;
}
}
else if(cb->next==cb->begin) {
pc->totalPlayTime+= pc->elapsedTime-
pc->beginTime;
if(doCrossFade==1 && nextChunk>=0) {
nextChunk = cb->begin+crossFadeChunks;
test = cb->end;
if(cb->wrap) test+=buffered_chunks;
if(nextChunk<test) {
if(nextChunk>=buffered_chunks)
{
nextChunk -= buffered_chunks;
}
cb->begin = nextChunk;
}
}
while(pc->queueState==PLAYER_QUEUE_DECODE ||
pc->queueLockState==PLAYER_QUEUE_LOCKED)
{
processDecodeInput();
if(quit) {
quitDecode(pc,dc);
return;
}
my_usleep(1000);
}
if(pc->queueState!=PLAYER_QUEUE_PLAY) {
quit = 1;
break;
}
else {
cb->next = -1;
if(waitOnDecode(pc,dc,cb,&decodeWaitedOn)<0) {
return;
}
nextChunk = -1;
doCrossFade = 0;
crossFadeChunks = 0;
pc->queueState = PLAYER_QUEUE_EMPTY;
kill(getppid(),SIGUSR1);
}
pc->beginTime = cb->times[cb->begin];
}
else if(*decode_pid<=0 ||
(dc->state==DECODE_STATE_STOP && !dc->start))
{
quit = 1;
break;
}
else {
if(playAudio(silence, CHUNK_SIZE) < 0) quit = 1;
}
}
pc->totalPlayTime+= pc->elapsedTime-pc->beginTime; \
quitDecode(pc,dc);
}
/* decode w/ buffering
* this will fork another process
* child process does decoding
@@ -364,191 +580,6 @@ void decode() {
if(decoderInit(pc,cb,dc)<0) return;
}
{
/* PARENT */
int pause = 0;
int quit = 0;
int bbp = buffered_before_play;
int doCrossFade = 0;
int crossFadeChunks = 0;
int fadePosition;
int nextChunk = -1;
int test;
char silence[CHUNK_SIZE];
memset(silence,0,CHUNK_SIZE);
if(waitOnDecode(pc,dc,cb)<0) return;
pc->state = PLAYER_STATE_PLAY;
pc->play = 0;
pc->beginTime = pc->elapsedTime;
kill(getppid(),SIGUSR1);
while(*decode_pid>0 && !cb->wrap && cb->end-cb->begin<bbp &&
dc->state==DECODE_STATE_DECODE)
{
processDecodeInput();
if(quit) return;
my_usleep(1000);
}
while(!quit) {
processDecodeInput();
if(dc->state==DECODE_STATE_STOP &&
pc->queueState==PLAYER_QUEUE_FULL &&
pc->queueLockState==PLAYER_QUEUE_UNLOCKED)
{
cb->next = cb->end;
dc->start = 1;
pc->queueState = PLAYER_QUEUE_DECODE;
kill(getppid(),SIGUSR1);
}
if(cb->next>=0 && doCrossFade==0 && !dc->start) {
nextChunk = -1;
if(isCurrentAudioFormat(&(cb->audioFormat))) {
doCrossFade = 1;
crossFadeChunks =
calculateCrossFadeChunks(pc,
&(cb->audioFormat));
if(!crossFadeChunks ||
pc->crossFade>=dc->totalTime)
{
doCrossFade = -1;
}
}
else doCrossFade = -1;
}
if(pause) my_usleep(10000);
else if((cb->begin!=cb->end || cb->wrap) &&
cb->begin!=cb->next)
{
if(doCrossFade==1 && cb->next>=0 &&
((cb->next>cb->begin &&
(fadePosition=cb->next-cb->begin)
<=crossFadeChunks) ||
(cb->begin>cb->next &&
(fadePosition=cb->next-cb->begin+
buffered_chunks)<=crossFadeChunks)))
{
if(nextChunk<0) {
crossFadeChunks = fadePosition;
}
test = cb->end;
if(cb->wrap) test+=buffered_chunks;
nextChunk = cb->begin+crossFadeChunks;
if(nextChunk<test) {
if(nextChunk>=buffered_chunks)
{
nextChunk-=
buffered_chunks;
}
pcm_mix(cb->chunks+cb->begin*
CHUNK_SIZE,
cb->chunks+nextChunk*
CHUNK_SIZE,
cb->chunkSize[
cb->begin],
cb->chunkSize[
nextChunk],
&(cb->audioFormat),
((float)fadePosition)/
crossFadeChunks);
if(cb->chunkSize[nextChunk]>
cb->chunkSize[cb->begin]
)
{
cb->chunkSize[cb->begin]
= cb->chunkSize
[nextChunk];
}
}
else {
if(dc->state==DECODE_STATE_STOP)
{
doCrossFade = -1;
}
else continue;
}
}
pc->elapsedTime = cb->times[cb->begin];
pc->bitRate = cb->bitRate[cb->begin];
pcm_volumeChange(cb->chunks+cb->begin*
CHUNK_SIZE,
cb->chunkSize[cb->begin],
&(cb->audioFormat),
pc->softwareVolume);
if(playAudio(cb->chunks+cb->begin*CHUNK_SIZE,
cb->chunkSize[cb->begin])<0)
{
quit = 1;
}
cb->begin++;
if(cb->begin>=buffered_chunks) {
cb->begin = 0;
cb->wrap = 0;
}
}
else if(cb->next==cb->begin) {
pc->totalPlayTime+= pc->elapsedTime-
pc->beginTime;
if(doCrossFade==1 && nextChunk>=0) {
nextChunk = cb->begin+crossFadeChunks;
test = cb->end;
if(cb->wrap) test+=buffered_chunks;
if(nextChunk<test) {
if(nextChunk>=buffered_chunks)
{
nextChunk-=
buffered_chunks;
}
cb->begin = nextChunk;
}
}
while(pc->queueState==PLAYER_QUEUE_DECODE ||
pc->queueLockState==PLAYER_QUEUE_LOCKED)
{
processDecodeInput();
if(quit) {
quitDecode(pc,dc);
return;
}
my_usleep(1000);
}
if(pc->queueState!=PLAYER_QUEUE_PLAY) {
quit = 1;
break;
}
else {
cb->next = -1;
if(waitOnDecode(pc,dc,cb)<0) return;
nextChunk = -1;
doCrossFade = 0;
crossFadeChunks = 0;
pc->queueState = PLAYER_QUEUE_EMPTY;
kill(getppid(),SIGUSR1);
}
pc->beginTime = cb->times[cb->begin];
}
else if(*decode_pid<=0 ||
(dc->state==DECODE_STATE_STOP && !dc->start))
{
quit = 1;
break;
}
else {
if(playAudio(silence, CHUNK_SIZE) < 0) {
quit = 1;
}
}
}
pc->totalPlayTime+= pc->elapsedTime-pc->beginTime; \
quitDecode(pc,dc);
/* END OF PARENT */
}
return;
decodeParent(pc, dc, cb);
}
/* vim:set shiftwidth=4 tabstop=8 expandtab: */
/* vim:set shiftwidth=8 tabstop=8 expandtab: */

3
src/decode.h
View File

@@ -31,7 +31,8 @@
#define DECODE_TYPE_URL 1
#define DECODE_STATE_STOP 0
#define DECODE_STATE_DECODE 1
#define DECODE_STATE_START 1
#define DECODE_STATE_DECODE 2
#define DECODE_ERROR_NOERROR 0
#define DECODE_ERROR_UNKTYPE 10

1
src/flac_decode.c
View File

@@ -135,7 +135,6 @@ int flac_decode(OutputBuffer * cb, DecoderControl *dc) {
}
dc->state = DECODE_STATE_DECODE;
dc->start = 0;
while(1) {
FLAC__seekable_stream_decoder_process_single(flacDec);

1
src/mp3_decode.c
View File

@@ -560,7 +560,6 @@ int mp3_decode(OutputBuffer * cb, DecoderControl * dc, InputStream * inStream) {
getOutputAudioFormat(&(dc->audioFormat), &(cb->audioFormat));
dc->totalTime = data.totalTime;
dc->start = 0;
dc->state = DECODE_STATE_DECODE;
while(mp3Read(&data,cb,dc)!=DECODE_BREAK);

5
src/mp4_decode.c
View File

@@ -249,7 +249,7 @@ int mp4_decode(OutputBuffer * cb, DecoderControl * dc) {
break;
}
if(dc->start) {
if(dc->state != DECODE_STATE_DECODE) {
channels = frameInfo.channels;
#ifdef HAVE_FAACDECFRAMEINFO_SAMPLERATE
scale = frameInfo.samplerate;
@@ -259,7 +259,6 @@ int mp4_decode(OutputBuffer * cb, DecoderControl * dc) {
getOutputAudioFormat(&(dc->audioFormat),
&(cb->audioFormat));
dc->state = DECODE_STATE_DECODE;
dc->start = 0;
}
if(channels*(dur+offset) > frameInfo.samples) {
@@ -297,7 +296,7 @@ int mp4_decode(OutputBuffer * cb, DecoderControl * dc) {
closeInputStream(&inStream);
free(mp4cb);
if(dc->start) return -1;
if(dc->state != DECODE_STATE_DECODE) return -1;
if(!dc->stop && !dc->seek && chunkLen>0) {
cb->chunkSize[cb->end] = chunkLen;

1
src/ogg_decode.c
View File

@@ -175,7 +175,6 @@ int ogg_decode(OutputBuffer * cb, DecoderControl * dc)
dc->totalTime = ov_time_total(&vf,-1);
dc->state = DECODE_STATE_DECODE;
dc->start = 0;
{
int current_section;