patch by Gwenole Beauchesne gbeauchesne splitted-desktopcom
based on suggested implementation by me
git-svn-id: file:///var/local/repositories/ffmpeg/trunk@17560
9553f0bf-9b14-0410-a0b8-
cfaf0461ba5b
s->last_mv[1][0][1]= 0;
}
+/**
+ * finds the next resync_marker
+ * @param p pointer to buffer to scan
+ * @param end pointer to the end of the buffer
+ * @return pointer to the next resync_marker, or \p end if none was found
+ */
+const uint8_t *ff_h263_find_resync_marker(const uint8_t *restrict p, const uint8_t * restrict end)
+{
+ assert(p < end);
+
+ end-=2;
+ p++;
+ for(;p<end; p+=2){
+ if(!*p){
+ if (!p[-1] && p[1]) return p - 1;
+ else if(!p[ 1] && p[2]) return p;
+ }
+ }
+ return end+2;
+}
+
/**
* decodes the group of blocks / video packet header.
* @return bit position of the resync_marker, or <0 if none was found
int ff_mpeg4_decode_partitions(MpegEncContext *s);
int ff_mpeg4_get_video_packet_prefix_length(MpegEncContext *s);
int ff_h263_resync(MpegEncContext *s);
+const uint8_t *ff_h263_find_resync_marker(const uint8_t *p, const uint8_t *end);
int ff_h263_get_gob_height(MpegEncContext *s);
void ff_mpeg4_init_direct_mv(MpegEncContext *s);
int ff_mpeg4_set_direct_mv(MpegEncContext *s, int mx, int my);