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8168编码的问题，如何编出baseline profile 3.1的H264码流

zhipeng zhu
Expert 1325 points

目前对于720p的数据 编译出来baseline 4.1格式  能否编出baseline 3.1格式的720p的H264码流

  • 0
    Expert 1325 points

    有没有类似dm365一样的levelIdc参数

  • 0
    Guru 22552 points

    你好；

    在DVRRDK_03.00.00.00/dvr_rdk/mcfw/src_bios6/links_m3video/codec_utils/src/utils_encdec.c文件可以配置；

    Int Utils_encdecGetCodecLevel(UInt32 codingFormat,
                              UInt32 maxWidth,
                              UInt32 maxHeight,
                              UInt32 maxFrameRate,
                              UInt32 maxBitRate, Int32 * pLevel,
                              Bool   isEnc)
{
    Int retVal = UTILS_ENCDEC_S_SUCCESS;

    (Void) maxWidth;
    (Void) maxHeight;
    (Void) maxFrameRate;
    (Void) maxBitRate;

    switch (codingFormat)
    {
        case IVIDEO_H264BP:
        case IVIDEO_H264MP:
        case IVIDEO_H264HP:
            switch (Utils_encdecGetResolutionClass(maxWidth, maxHeight))
            {
                case UTILS_ENCDEC_RESOLUTION_CLASS_16MP: 
                case UTILS_ENCDEC_RESOLUTION_CLASS_9MP: 
                case UTILS_ENCDEC_RESOLUTION_CLASS_5MP:
                case UTILS_ENCDEC_RESOLUTION_CLASS_4MP: 
                    if (isEnc)
                        *pLevel = IH264_LEVEL_51;
                    else
                        *pLevel = IH264VDEC_LEVEL51;
                    break;
                case UTILS_ENCDEC_RESOLUTION_CLASS_1080P:
                case UTILS_ENCDEC_RESOLUTION_CLASS_720P:
                    if (isEnc)
                        *pLevel = IH264_LEVEL_50;
                    else
                        *pLevel = IH264VDEC_LEVEL5;
                    break;
                case UTILS_ENCDEC_RESOLUTION_CLASS_CIF:
                    if (isEnc)
                        *pLevel = IH264_LEVEL_30;
                    else
                        *pLevel = IH264VDEC_LEVEL3;
                    break;
                case UTILS_ENCDEC_RESOLUTION_CLASS_D1:
                    if (isEnc)
                        *pLevel = IH264_LEVEL_31;
                    else
                        *pLevel = IH264VDEC_LEVEL31;
                    break;
                default:
                    if (isEnc)
                        *pLevel = IH264_LEVEL_41;
                    else
                        *pLevel = IH264VDEC_LEVEL41;
                    break;
            }
            break;
        case IVIDEO_MPEG4SP:
        case IVIDEO_MPEG4ASP:
            switch (Utils_encdecGetResolutionClass(maxWidth, maxHeight))
            {
                case UTILS_ENCDEC_RESOLUTION_CLASS_16MP: 
                case UTILS_ENCDEC_RESOLUTION_CLASS_9MP: 
                case UTILS_ENCDEC_RESOLUTION_CLASS_5MP:
                case UTILS_ENCDEC_RESOLUTION_CLASS_4MP:
                case UTILS_ENCDEC_RESOLUTION_CLASS_1080P:
                    if (isEnc)
                        *pLevel = IMPEG4ENC_SP_LEVEL_6;
                    break;
                case UTILS_ENCDEC_RESOLUTION_CLASS_CIF:
                    if (isEnc)
                        *pLevel = IMPEG4ENC_SP_LEVEL_4A;
                    break;
                case UTILS_ENCDEC_RESOLUTION_CLASS_720P:
                case UTILS_ENCDEC_RESOLUTION_CLASS_D1:
                    if (isEnc)
                        *pLevel = IMPEG4ENC_SP_LEVEL_5;
                    break;
                default:
                    if (isEnc)
                        *pLevel = IMPEG4ENC_SP_LEVEL_5;
                    break;
            }
        break;
        default:
            *pLevel = IVIDENC2_DEFAULTLEVEL;
            retVal = UTILS_ENCDEC_E_UNKNOWNCODINGTFORMAT;
            break;
    }
    return retVal;
}

    在这个函数里面配置就可以了