@文心快码encoder null, cannot set bitrate! 文心快码 关于“encoder null, cannot set bitrate!”这个错误,这通常表示在尝试设置视频编码器的比特率时,编码器对象未正确初始化或未正确设置。以下是一些可能的解决步骤和检查点: 确认错误上下文: 这个错误通常出现在使用GStreamer进行视频捕获和编码时。在你的情况中...
/** * struct drm_encoder - central DRM encoder structure * @dev: parent DRM device * @head: list management * @base: base KMS object * @name: human readable name, can be overwritten by the driver * @funcs: control functions, can be NULL for simple managed encoders * @helper_private...
2. During encoder initialization, set NV_ENC_CONFIG_HEVC:: enableAlphaLayerEncoding = 1. Clients can also specify the ratio in which the bitrate is to be split between YUV and the auxiliary alpha layer by setting NV_ENC_RC_PARAMS::alphaLayerBitrateRatio. For example, if NV_ENC_RC_PARAMS...
The encoder tries to conform to average bitrate of averageBitRate over the long term while not exceeding maxBitRate any time during the encoding. In this mode, averageBitRate must be specified. If maxBitRate isn't specified, NVENC will set it to an internally determined default value. It is ...
bool AL_Encoder_SetGopLength(AL_HEncoder hEnc, int iGopLength) bool AL_Encoder_SetGopNumB(AL_HEncoder hEnc, int iNumB) bool AL_Encoder_SetBitRate(AL_HEncoder hEnc, int iBitRate) bool AL_Encoder_SetFrameRate(AL_HEncoder hEnc, uint16_t uFrameRate, uint16_t uClkRatio) ...
x264_validate_levels( h );这个函数用于验证一些参数是否大于某个level. 这些参数包括:frame size(帧大小), DPB size(Decoded Picture Buffer)解码后图像缓冲区大小(关于DPB参考这个附件:H.264 DPB summery.pdf), VBV bitrate, VBV buffer(参考这里),MV range(参考),MB bitrate. ...
(AMF_VIDEO_ENCODER_TARGET_BITRATE, bitRateIn); AMF_RETURN_IF_FAILED(res, L"SetProperty(AMF_VIDEO_ENCODER_TARGET_BITRATE, %" LPRId64 L") failed", bitRateIn); res = encoder->SetProperty(AMF_VIDEO_ENCODER_FRAMESIZE, ::AMFConstructSize(widthIn, heightIn)); AMF_RETURN_IF_FAILED(res, L"...
ERROR_RETURN("Could not set Capture plane format"); ret = ctx->enc->setOutputPlaneFormat(V4L2_PIX_FMT_YUV420M, 640,480); if(ret < 0) ERROR_RETURN("Could not set output plane format"); ret = ctx->enc->setBitrate(ctx->enc_bitrate); ...
int BitRate = -1; // if (BitRate < 0) used below !! double FrameRate = 0; UMC :: sSystemInfo* m_ssysteminfo; vm_char tmpbuf[128]={0,}; vm_char vid_type[15]={0,}; vm_char* stream_name = NULL; *SrcFileName = 0; *PerfFileName=0; for (i = 1; i < argc; i++)...
x264_sps_init()根据输入参数生成H.264码流的SPS(Sequence Parameter Set,序列参数集)信息,即根据输入参数集x264_param_t中的信息,初始化了SPS结构体中的成员变量。该函数的定义位于encoder\set.c,对应的代码如下: ///初始化SPS void x264_sps_init