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-rw-r--r--src/mp3_decode.c49
1 files changed, 29 insertions, 20 deletions
diff --git a/src/mp3_decode.c b/src/mp3_decode.c
index 501042f76..319f324d5 100644
--- a/src/mp3_decode.c
+++ b/src/mp3_decode.c
@@ -134,6 +134,7 @@ typedef struct _mp3DecodeData {
int flush;
unsigned long bitRate;
InputStream * inStream;
+ int bufferReset;
} mp3DecodeData;
void initMp3DecodeData(mp3DecodeData * data, InputStream * inStream) {
@@ -147,6 +148,7 @@ void initMp3DecodeData(mp3DecodeData * data, InputStream * inStream) {
data->currentFrame = 0;
data->flush = 1;
data->inStream = inStream;
+ data->bufferReset = 0;
mad_stream_init(&data->stream);
data->stream.options |= MAD_OPTION_IGNORECRC;
@@ -155,19 +157,22 @@ void initMp3DecodeData(mp3DecodeData * data, InputStream * inStream) {
mad_timer_reset(&data->timer);
}
-int fillMp3InputBuffer(mp3DecodeData * data, long offset) {
+int seekMp3InputBuffer(mp3DecodeData * data, long offset) {
+ if(seekInputStream(data->inStream,offset,SEEK_SET) < 0) {
+ return -1;
+ }
+ data->bufferReset = 1;
+
+ return 0;
+}
+
+int fillMp3InputBuffer(mp3DecodeData * data) {
size_t readSize;
size_t remaining;
size_t readed;
unsigned char * readStart;
- if(offset>=0) {
- if(seekInputStream(data->inStream,offset,SEEK_SET) < 0) {
- return -1;
- }
- }
-
- if(offset==-1 && (data->stream).next_frame!=NULL) {
+ if(!data->bufferReset && (data->stream).next_frame!=NULL) {
remaining = (data->stream).bufend-(data->stream).next_frame;
memmove(data->readBuffer,(data->stream).next_frame,remaining);
readStart = (data->readBuffer)+remaining;
@@ -177,14 +182,14 @@ int fillMp3InputBuffer(mp3DecodeData * data, long offset) {
readSize = READ_BUFFER_SIZE;
readStart = data->readBuffer,
remaining = 0;
+ data->bufferReset = 0;
}
- readed = 0;
- while(readed == 0 && !inputStreamAtEOF(data->inStream)) {
- readed = readFromInputStream(data->inStream, readStart,
- (size_t)1, readSize);
- }
- if(readed<=0) return -1;
+ readed = readFromInputStream(data->inStream, readStart, (size_t)1,
+ readSize);
+ if(readed <= 0 && inputStreamAtEOF(data->inStream)) return -1;
+ /* sleep for a fraction of a second! */
+ else if(readed == 0) my_usleep(10);
mad_stream_buffer(&data->stream,data->readBuffer,readed+remaining);
(data->stream).error = 0;
@@ -194,7 +199,7 @@ int fillMp3InputBuffer(mp3DecodeData * data, long offset) {
int decodeNextFrameHeader(mp3DecodeData * data) {
if((data->stream).buffer==NULL || (data->stream).error==MAD_ERROR_BUFLEN) {
- if(fillMp3InputBuffer(data,/*data->currentOffset*/-1) < 0) {
+ if(fillMp3InputBuffer(data) < 0) {
return DECODE_BREAK;
}
}
@@ -234,7 +239,7 @@ int decodeNextFrameHeader(mp3DecodeData * data) {
int decodeNextFrame(mp3DecodeData * data) {
if((data->stream).buffer==NULL || (data->stream).error==MAD_ERROR_BUFLEN) {
- if(fillMp3InputBuffer(data,/*data->currentOffset*/-1) < 0) {
+ if(fillMp3InputBuffer(data) < 0) {
return DECODE_BREAK;
}
}
@@ -504,8 +509,8 @@ int mp3Read(mp3DecodeData * data, OutputBuffer * cb, DecoderControl * dc) {
i++;
}
if(i<data->highestFrame) {
- if(fillMp3InputBuffer(data,
- data->frameOffset[i]) == 0)
+ if(seekMp3InputBuffer(data,
+ data->frameOffset[i]) == 0)
{
clearOutputBuffer(cb);
data->currentFrame = i;
@@ -519,16 +524,20 @@ int mp3Read(mp3DecodeData * data, OutputBuffer * cb, DecoderControl * dc) {
while(1) {
skip = 0;
- while((ret = decodeNextFrameHeader(data))==DECODE_CONT);
+ while((ret = decodeNextFrameHeader(data))==DECODE_CONT &&
+ !dc->seek && !dc->stop);
if(ret==DECODE_SKIP) skip = 1;
else if(ret==DECODE_BREAK) break;
if(!data->muteFrame) {
- while((ret = decodeNextFrame(data))==DECODE_CONT);
+ while((ret = decodeNextFrame(data))==DECODE_CONT &&
+ !dc->seek && !dc->stop);
if(ret==DECODE_BREAK) break;
}
if(!skip && ret==DECODE_OK) break;
}
+ if(dc->stop) return DECODE_BREAK;
+
return ret;
}