hi_venc_h264_cbr_param

Description

Defines the advanced CBR parameters of an H.264 encoding channel.

Prototype

hi_venc_h264_cbr_param = {"max_i_proportion": max_i_proportion,
                          "min_i_proportion": min_i_proportion,
                          "max_qp": max_qp,
                          "min_qp": min_qp,
                          "max_i_qp": max_i_qp,
                          "min_i_qp": min_i_qp,
                          "max_reencode_times": max_reencode_times,
                          "qpmap_en": qpmap_en}

Members

Member	Description
min_i_proportion	Int, minimum proportion of I- and P-frames, reserved.
max_i_proportion	Maximum ratio of bits allocated to I-frames and P-frames. Value range: [1, 100] The default value is 100.
max_qp	Int, maximum QP value of a frame. Used to control the quality. Value range: [0, 51] Default value: 51
min_qp	Int, minimum QP value of a frame. Used to control the bit rate fluctuation. Value range: [0, max_qp] Default value: 10
max_reencode_times	Int, number of times that each frame is re-encoded. If set to 0, disables re-encoding. Value range: [0, 3] Default value: 2
min_i_qp	Int, minimum QP value of an I-frame. Used to limit the maximum number of bits allocated to I-frames. Value range: [0, max_i_qp] Default value: 10
max_i_qp	Int, maximum QP value of an I-frame. Used to limit the minimum number of bits allocated to I-frames. Value range: [0, 51] Default value: 51
qpmap_en	Int, reserved.

Parent topic: Video/Image Encoding