+ return pic>1 ? AVPROBE_SCORE_MAX/2+1 : AVPROBE_SCORE_MAX/4; // +1 for .mpg
+ return 0;
+}
+#endif
+
+#if CONFIG_CAVSVIDEO_DEMUXER
+#define CAVS_SEQ_START_CODE 0x000001b0
+#define CAVS_PIC_I_START_CODE 0x000001b3
+#define CAVS_UNDEF_START_CODE 0x000001b4
+#define CAVS_PIC_PB_START_CODE 0x000001b6
+#define CAVS_VIDEO_EDIT_CODE 0x000001b7
+#define CAVS_PROFILE_JIZHUN 0x20
+
+static int cavsvideo_probe(AVProbeData *p)
+{
+ uint32_t code= -1;
+ int pic=0, seq=0, slice_pos = 0;
+ int i;
+
+ for(i=0; i<p->buf_size; i++){
+ code = (code<<8) + p->buf[i];
+ if ((code & 0xffffff00) == 0x100) {
+ if(code < CAVS_SEQ_START_CODE) {
+ /* slices have to be consecutive */
+ if(code < slice_pos)
+ return 0;
+ slice_pos = code;
+ } else {
+ slice_pos = 0;
+ }
+ if (code == CAVS_SEQ_START_CODE) {
+ seq++;
+ /* check for the only currently supported profile */
+ if(p->buf[i+1] != CAVS_PROFILE_JIZHUN)
+ return 0;
+ } else if ((code == CAVS_PIC_I_START_CODE) ||
+ (code == CAVS_PIC_PB_START_CODE)) {
+ pic++;
+ } else if ((code == CAVS_UNDEF_START_CODE) ||
+ (code > CAVS_VIDEO_EDIT_CODE)) {
+ return 0;
+ }
+ }
+ }
+ if(seq && seq*9<=pic*10)
+ return AVPROBE_SCORE_MAX/2;