do not check for minimum slice start code, 0x00000100 is valid

git-svn-id: file:///var/local/repositories/ffmpeg/trunk@17133 9553f0bf-9b14-0410-a0b8-cfaf0461ba5b

libavcodec/cavs.h

@@ -25,7 +25,6 @@
 #include "dsputil.h"
 #include "mpegvideo.h"
 
-#define SLICE_MIN_START_CODE    0x00000101
 #define SLICE_MAX_START_CODE    0x000001af
 #define EXT_START_CODE          0x000001b5
 #define USER_START_CODE         0x000001b2

libavcodec/cavs_parser.c

@@ -60,7 +60,7 @@ static int cavs_find_frame_end(ParseContext *pc, const uint8_t *buf,
         for(; i<buf_size; i++){
             state= (state<<8) | buf[i];
             if((state&0xFFFFFF00) == 0x100){
-                if(state < SLICE_MIN_START_CODE || state > SLICE_MAX_START_CODE){
+                if(state > SLICE_MAX_START_CODE){
                     pc->frame_start_found=0;
                     pc->state=-1;
                     return i-3;

libavcodec/cavsdec.c

@@ -678,8 +678,7 @@ static int cavs_decode_frame(AVCodecContext * avctx,void *data, int *data_size,
             //mpeg_decode_user_data(avctx,buf_ptr, input_size);
             break;
         default:
-            if (stc >= SLICE_MIN_START_CODE &&
-                stc <= SLICE_MAX_START_CODE) {
+            if (stc <= SLICE_MAX_START_CODE) {
                 init_get_bits(&s->gb, buf_ptr, input_size);
                 decode_slice_header(h, &s->gb);
             }