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authortoma <toma@283d02a7-25f6-0310-bc7c-ecb5cbfe19da>2009-11-25 17:56:58 +0000
committertoma <toma@283d02a7-25f6-0310-bc7c-ecb5cbfe19da>2009-11-25 17:56:58 +0000
commite2de64d6f1beb9e492daf5b886e19933c1fa41dd (patch)
tree9047cf9e6b5c43878d5bf82660adae77ceee097a /mpg123_artsplugin/mpg123/vbrhead.c
downloadtdemultimedia-e2de64d6f1beb9e492daf5b886e19933c1fa41dd.tar.gz
tdemultimedia-e2de64d6f1beb9e492daf5b886e19933c1fa41dd.zip
Copy the KDE 3.5 branch to branches/trinity for new KDE 3.5 features.
BUG:215923 git-svn-id: svn://anonsvn.kde.org/home/kde/branches/trinity/kdemultimedia@1054174 283d02a7-25f6-0310-bc7c-ecb5cbfe19da
Diffstat (limited to 'mpg123_artsplugin/mpg123/vbrhead.c')
-rw-r--r--mpg123_artsplugin/mpg123/vbrhead.c79
1 files changed, 79 insertions, 0 deletions
diff --git a/mpg123_artsplugin/mpg123/vbrhead.c b/mpg123_artsplugin/mpg123/vbrhead.c
new file mode 100644
index 00000000..f77ab279
--- /dev/null
+++ b/mpg123_artsplugin/mpg123/vbrhead.c
@@ -0,0 +1,79 @@
+/*
+ * This checks for the VBR Header defined by Xing(tm)
+ */
+
+#include "mpg123.h"
+
+static unsigned long get32bits(unsigned char *buf) {
+ unsigned long ret = 0;
+
+ ret = (((unsigned long) buf[0]) << 24) |
+ (((unsigned long) buf[1]) << 16) |
+ (((unsigned long) buf[2]) << 8) |
+ ((unsigned long) buf[3]) ;
+
+ return ret;
+}
+
+int getVBRHeader(struct vbrHeader *head,unsigned char *buf, struct frame *fr)
+{
+ int ssize;
+
+ if(fr->lay != 3)
+ return 0;
+
+ if(fr->lsf)
+ ssize = (fr->stereo == 1) ? 9 : 17;
+ else
+ ssize = (fr->stereo == 1) ? 17 : 32;
+
+
+ buf += ssize;
+
+ if(( buf[0] != 'X' ) || ( buf[1] != 'i' ) ||
+ ( buf[2] != 'n' ) || ( buf[3] != 'g' ) )
+ return 0;
+ buf+=4;
+
+ head->flags = get32bits(buf);
+ buf+=4;
+
+ if(head->flags & VBR_FRAMES_FLAG) {
+ head->frames = get32bits(buf);
+ buf += 4;
+ }
+
+ if(head->flags & VBR_BYTES_FLAG) {
+ head->bytes = get32bits(buf);
+ buf += 4;
+ }
+
+ if(head->flags & VBR_TOC_FLAG) {
+ memcpy(head->toc,buf,100);
+ buf += 100;
+ }
+
+ if(head->flags & VBR_SCALE_FLAG) {
+ head->scale = get32bits(buf);
+ buf += 4;
+ }
+
+ fprintf(stderr,"Found XING %04lx\n",head->flags);
+
+ return 1;
+
+}
+
+
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