SetEncodeParam

enum EncodeParamIndex : uint32_t {
    ENCODE_PARAM_NONE,
    ENCODE_PARAM_RATE_CONTROL, // Sets the bit rate control mode.
    ENCODE_PARAM_BITRATE, // Sets the bit rate.
    ENCODE_PARAM_FRAMERATE, // Sets the frame rate.
    ENCODE_PARAM_GOPSIZE, // Sets the GOP size.
    ENCODE_PARAM_PROFILE, // Sets the profile.
    ENCODE_PARAM_KEYFRAME, // Sets the key frame.
    ENCODE_PARAM_STREAM_WIDTH,// Sets the output stream width.
    ENCODE_PARAM_STREAM_HEIGHT,// Sets the output stream height.
    ENCODE_PARAM_CRF, // Sets the CRF level.
    ENCODE_PARAM_CRF_MAXRATE,// Sets the maximum CRF bit rate.
    ENCODE_PARAM_MAX
};
struct EncodeParamBase {
    explicit EncodeParamBase(EncodeParamIndex index) : id(index) {}
    EncodeParamIndex id;
};
struct EncodeParamRateControl : public EncodeParamBase {
    EncodeParamRateControl() : EncodeParamBase(ENCODE_PARAM_RATE_CONTROL) {}
    uint32_t rateControl = 0;
};
struct EncodeParamBitRate : public EncodeParamBase {
    EncodeParamBitRate() : EncodeParamBase(ENCODE_PARAM_BITRATE) {}
    uint32_t bitRate = 0;
};
struct EncodeParamFrameRate : public EncodeParamBase {
    EncodeParamFrameRate() : EncodeParamBase(ENCODE_PARAM_FRAMERATE) {}
    uint32_t frameRate;
};
struct EncodeParamGopsize : public EncodeParamBase {
    EncodeParamGopsize() : EncodeParamBase(ENCODE_PARAM_GOPSIZE) {}
    uint32_t gopSize;
};
struct EncodeParamProfile : public EncodeParamBase {
    EncodeParamProfile() : EncodeParamBase(ENCODE_PARAM_PROFILE) {}
    uint32_t profile;
};
struct EncodeParamKeyframe : public EncodeParamBase {
    EncodeParamKeyframe() : EncodeParamBase(ENCODE_PARAM_KEYFRAME) {}
    uint32_t n;
};
struct EncodeParamStreamWidth : public EncodeParamBase {
    EncodeParamStreamWidth() : EncodeParamBase(ENCODE_PARAM_STREAM_WIDTH) {}
    uint32_t streamWidth;
};
struct EncodeParamStreamHeight : public EncodeParamBase {
    EncodeParamStreamHeight() : EncodeParamBase(ENCODE_PARAM_STREAM_HEIGHT) {}
    uint32_t streamHeight;
};
using EncodeParamT = EncodeParamBase *;