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harden metadatabuffer 

git-svn-id: https://svn.musicpd.org/mpd/trunk@1362 09075e82-0dd4-0310-85a5-a0d7c8717e4f
This commit is contained in:
Warren Dukes 2004-06-06 22:13:23 +00:00
parent 33f21b9374
commit 62f32ccb01
3 changed files with 33 additions and 7 deletions
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5
src/decode.c
View File

@ -406,7 +406,8 @@ void handleMetadata(OutputBuffer * cb, PlayerControl * pc) {
int meta = cb->metaChunk[cb->begin];
if( meta != previous ) {
if( meta >= 0 && pc->metadataState ==
PLAYER_METADATA_STATE_WRITE)
PLAYER_METADATA_STATE_WRITE &&
cb->metaChunkSet[meta])
{
printf("METADATA!, copying it.\n");
memcpy(&(pc->metadataChunk),
@ -414,6 +415,7 @@ void handleMetadata(OutputBuffer * cb, PlayerControl * pc) {
sizeof(MetadataChunk));
pc->metadataState =
PLAYER_METADATA_STATE_READ;
cb->metaChunkSet[meta] = 0;
previous = meta;
}
}
@ -621,6 +623,7 @@ void decode() {
dc->seek = 0;
dc->stop = 0;
dc->start = 1;
clearAllMetaChunkSets(cb);
if(decode_pid==NULL || *decode_pid<=0) {
if(decoderInit(pc,cb,dc)<0) return;

29
src/outputBuffer.c
View File

@ -29,10 +29,25 @@ static mpd_sint16 currentChunk = -1;
static mpd_sint8 currentMetaChunk = -1;
static mpd_sint8 sendMetaChunk = 0;
void clearAllMetaChunkSets(OutputBuffer * cb) {
int i;
for(i=0; i<BUFFERED_METACHUNKS; i++) {
cb->metaChunkSet[i] = 0;
}
}
void clearOutputBuffer(OutputBuffer * cb) {
currentChunk = -1;
cb->end = cb->begin;
cb->wrap = 0;
if(cb->acceptMetadata) {
clearAllMetaChunkSets(cb);
if(sendMetaChunk == 0 && currentMetaChunk >= 0) {
cb->metaChunkSet[currentChunk] = 1;
}
}
}
void flushOutputBuffer(OutputBuffer * cb) {
@ -126,20 +141,28 @@ int sendDataToOutputBuffer(OutputBuffer * cb, InputStream * inStream,
}
int copyMpdTagToOutputBuffer(OutputBuffer * cb, MpdTag * tag) {
int nextChunk;
printf("copyMpdTagToOB called\n");
if(!cb->acceptMetadata || !tag) {
sendMetaChunk = 0;
return -1;
return 0;
}
sendMetaChunk = 1;
currentMetaChunk++;
if(currentMetaChunk >= BUFFERED_METACHUNKS) currentMetaChunk = 0;
nextChunk = currentMetaChunk+1;
if(nextChunk >= BUFFERED_METACHUNKS) nextChunk = 0;
if(cb->metaChunkSet[nextChunk]) return -1;
currentMetaChunk = nextChunk;
printMpdTag(stdout, tag);
copyMpdTagToMetadataChunk(tag, &(cb->metadataChunks[currentMetaChunk]));
cb->metaChunkSet[nextChunk] = 1;
return 0;
}

6
src/outputBuffer.h
View File

@ -41,7 +41,7 @@ typedef struct _OutputBuffer {
mpd_sint8 volatile wrap;
AudioFormat audioFormat;
MetadataChunk metadataChunks[BUFFERED_METACHUNKS];
mpd_sint8 metdataChunkSet[BUFFERED_METACHUNKS];
mpd_sint8 metaChunkSet[BUFFERED_METACHUNKS];
mpd_sint8 * volatile metaChunk;
volatile mpd_sint8 acceptMetadata;
} OutputBuffer;
@ -56,8 +56,8 @@ int sendDataToOutputBuffer(OutputBuffer * cb, InputStream * inStream,
DecoderControl * dc, int seekable, char * data, long datalen,
float time, mpd_uint16 bitRate);
void copyMpdTagToOutputBuffer(OutputBuffer * cb, MpdTag * tag);
int copyMpdTagToOutputBuffer(OutputBuffer * cb, MpdTag * tag);
void zeroMetadataChunkSets(OutputBuffer * cb, int begin, int end, int wrap);
void clearAllMetaChunkSets(OutputBuffer * cb);
#endif