static int cavs_find_frame_end(ParseContext *pc, const uint8_t *buf, int buf_size) { int pic_found, i; uint32_t state; pic_found= pc->frame_start_found; state= pc->state; i=0; if(!pic_found){ for(i=0; i<buf_size; i++){ state= (state<<8) | buf[i]; if(state == PIC_I_START_CODE || state == PIC_PB_START_CODE){ i++; pic_found=1; break; } } } if(pic_found){ /* EOF considered as end of frame */ if (buf_size == 0) return 0; 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){ pc->frame_start_found=0; pc->state=-1; return i-3; } } } } pc->frame_start_found= pic_found; pc->state= state; return END_NOT_FOUND; }