winamp/Src/Plugins/Input/in_flv/FLVVideoHeader.cpp

24 lines
487 B
C++

#include "FLVVideoHeader.h"
/*
(c) 2006 Nullsoft, Inc.
Author: Ben Allison benski@nullsoft.com
*/
/*
codecID - 4 bits - 2: Sorensen H.263, 3: Screen video, 4: On2 VP6
frameType - 4 bits - 1: keyframe, 2: inter frame, 3: disposable inter frame
*/
bool FLVVideoHeader::Read(unsigned __int8 *data, size_t size)
{
if (size < 1)
return false; // header size too small
unsigned __int8 byte = data[0];
format = (byte & 0x0f) >> 0;
frameType = (byte & 0xf0) >> 4;
return true;
}