avoid a clash between two definitions of SEQ_START_CODE

Originally committed as revision 8903 to svn://svn.ffmpeg.org/ffmpeg/trunk

libavcodec/cavs.c

@@ -1352,7 +1352,7 @@ static int cavs_decode_frame(AVCodecContext * avctx,void *data, int *data_size,
             return FFMAX(0, buf_ptr - buf - s->parse_context.last_index);
         input_size = (buf_end - buf_ptr)*8;
         switch(stc) {
-        case SEQ_START_CODE:
+        case CAVS_START_CODE:
             init_get_bits(&s->gb, buf_ptr, input_size);
             decode_seq_header(h);
             break;

libavcodec/cavsdata.h

@@ -23,7 +23,7 @@
 #define SLICE_MAX_START_CODE    0x000001af
 #define EXT_START_CODE          0x000001b5
 #define USER_START_CODE         0x000001b2
-#define SEQ_START_CODE          0x000001b0
+#define CAVS_START_CODE         0x000001b0
 #define PIC_I_START_CODE        0x000001b3
 #define PIC_PB_START_CODE       0x000001b6