相关疑难解决方法(0)

我在NALU(AVC解码器配置记录)中获得了SPS,并试图从中解析视频宽度/高度.

67 64 00 15 ac c8 60 20 09 6c 04 40 00 00 03 00 40 00 00 07 a3 c5 8b 67 80 

这是我的代码解析SPS但得到错误的值.pic_width_in_mbs_minus1是5,pic_height_in_map_units_minus1是1.实际上视频是512 X 288px

typedef struct _SequenceParameterSet
{
private:
    const unsigned char * m_pStart;
    unsigned short m_nLength;
    int m_nCurrentBit;

    unsigned int ReadBit()
    {
        ATLASSERT(m_nCurrentBit <= m_nLength * 8);
        int nIndex = m_nCurrentBit / 8;
        int nOffset = m_nCurrentBit % 8 + 1;

        m_nCurrentBit ++;
        return (m_pStart[nIndex] >> (8-nOffset)) & 0x01;
    }

    unsigned int ReadBits(int n) …