1 files changed, 51 insertions, 0 deletions
diff --git a/tools/mpeg.c b/tools/mpeg.c
new file mode 100644
index 00000000..35e95da3
--- /dev/null
+++ b/tools/mpeg.c
@@ -0,0 +1,51 @@
+/*
+ * mpeg.c:
+ *
+ * See the main source file 'xineliboutput.c' for copyright information and
+ * how to reach the author.
+ *
+ * $Id: mpeg.c,v 1.1 2008-02-04 22:42:13 phintuka Exp $
+ *
+ */
+
+#include "mpeg.h"
+
+
+const char * const picture_type_str[] = {
+  "(none)",
+  "I-Frame",
+  "B-Frame",
+  "P-Frame"
+};
+
+
+int mpeg2_get_picture_type(const uint8_t *buf, int len)
+{
+  int i;
+  for (i = 0; i < len-5; i++) {
+    if (buf[i] == 0 && buf[i + 1] == 0 && buf[i + 2] == 1) {
+      switch (buf[i + 3]) {
+        case SC_PICTURE:
+	  return (buf[i + 5] >> 3) & 0x07;
+      }
+    }
+  }
+  return NO_PICTURE;
+}
+
+int mpeg2_get_video_size(const uint8_t *buf, int len, video_size_t *size)
+{
+  int i;
+  for (i = 0; i < len-6; i++) {
+    if (buf[i] == 0 && buf[i + 1] == 0 && buf[i + 2] == 1) {
+      if (buf[i + 3] == SC_SEQUENCE) {
+	int d = (buf[i+4] << 16) | (buf[i+5] << 8) | buf[i+6];
+	size->width  = (d >> 12);
+	size->height = (d & 0xfff);
+	return 1;
+      }
+    }
+  }
+  return 0;
+}
+