sdk-hwV1.3/external/fast-user-adapter/rt_media/docs/ve_param_0.xml

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<demo>
<!--
* xml文件默认路径是/etc目录用户可以自己修改路径方法如下
1、在tmp目录下创建文件ve_param_file_path.confeg. touch ve_param_file_path.conf
2、把xml路径和前缀输入到conf文件中如 echo /tmp/ve_param_ > ve_param_file_path.conf注意不需要输入完整的文件名只输入前缀这样是为了能够匹配到所有通道
这样就可以改变所有通道匹配的路径了。
* 文件名中的后缀_0\_4等快起和非快起区别如下
1、在长电方案即非快起表示第几通道只是简单的増序id(非vipp num)如ve_param_4.xml表示要设置第四个通道的参数
2、在快起方案表示第几通道同时也代表了是哪个vipp num如ve_param_4.xml表示第4通道同时也表示vipp_num是4。
* ve_param_0.xml中的tag
1、tag在static范围内的内容在编码初始化的时候才会进行解析会把用户设置的参数修改为xml中的内容
2、tag在dynamic范围内的内容在编码过程中进行解析解析完后会自动给文件名添加后缀_used表示已经解析过了eg: ve_param_0_used.xml
如需再次设置请重新push xml文件到/etc目录或者自己修改的目录中或者直接mv ve_param_0_used.xml ve_param_0.xml后再次使用
* 每个tag都有一个status属性
1、on表示要设置该tag中的参数
2、off表示不需要设置
* 如何在代码中自己添加参数设置请搜索关键函数check_ve_param_file去查看例子简单概述如下
1、xml文件添加tag和键值对
2、代码start_parse_tag函数中添加相应的tag字符串比对并把值赋值给对应添加的参数成员同时设置参数到编码器中。
具体请查看对应函数代码
ch_id仅用于标识
-->
<static ch_id = "0">
<frame_rate status = "off" value = "30"/>
<bit_rate status = "off" value = "6291456"/>
<vbv_size status = "off" value = "8388608"/>
<pixel_format status = "off"
pxl_format = "RT_PIXEL_YUV420SP"
out_pxl_format = "1"
/>
<resolution status = "off"
src_width = "1280"
src_height = "720"
dst_width = "1280"
dst_height = "720"
/>
<qp_range status = "off"
i_qp_min = "25"
i_qp_max = "45"
p_qp_min = "25"
p_qp_max = "45"
qp_init = "25"
mb_qp_limit = "0"
/>
</static>
<dynamic ch_id = "0">
<frame_rate status = "off" value = "30"/>
<bit_rate status = "off" value = "6291456"/>
<force_conf_win status = "off"
u8_en_force_conf = "0"
u32_lefet_offset = "0"
u32_right_offset = "0"
u32_top_offset = "0"
u32_bottom_offset = "0"
/>
<s32_jpeg_quality status = "off" value = "80"/>
<qp_range status = "off"
i_qp_min = "25"
i_qp_max = "45"
p_qp_min = "25"
p_qp_max = "45"
qp_init = "25"
mb_qp_limit = "0"
/>
<fix_qp status = "off"
u8_en_fix_qp = "0"
s32_fix_i_qp = "35"
s32_fix_p_qp = "35"
/>
<target_bits_clip status = "off"
u8_bits_clip_dis_default = "1"
s32_bits_clip_mode = "0"
f32_bits_clip_coef_0_0 = "-0.5"
f32_bits_clip_coef_0_1 = "-0.2"
f32_bits_clip_coef_1_0 = "-0.3"
f32_bits_clip_coef_1_1 = "-0.1"
f32_bits_clip_coef_2_0 = "-0.3"
f32_bits_clip_coef_2_1 = "0"
f32_bits_clip_coef_3_0 = "-0.5"
f32_bits_clip_coef_3_1 = "0.1"
f32_bits_clip_coef_4_0 = "0.4"
f32_bits_clip_coef_4_1 = "0.7"
u8_bits_clip_gop_ratio_en = "0"
f32_bits_clip_gop_ratio_th_0 = "0.58"
f32_bits_clip_gop_ratio_th_1 = "0.64"
f32_bits_clip_gop_ratio_th_2 = "1.25"
/>
<vbr_param status = "off"
s32_quality = "10"
s32_p_bits_coef = "10"
s32_i_bits_coef = "10"
/>
<d2d_filter status = "off"
u8_d2d_en = "1"
u8_d2d_strength_uv = "127"
u8_d2d_strength_y = "127"
u8_d2d_th_uv = "11"
u8_d2d_th_y = "7"
/>
<d3d_filter status = "off"
u8_d3d_en = "1"
u8_d3d_max_mv_th = "5"
u8_d3d_max_mad_th = "48"
u8_d3d_pix_level_en = "0"
u8_d3d_pix_diff_th = "6"
u8_d3d_smooth_en = "0"
u8_min_coef = "0"
u8_max_coef = "16"
/>
<region_d3d status = "off"
u8_en_region_d3d = "1"
u8_dis_default_para = "0"
s32_result_num = "3"
s32_hor_region_num = "2"
s32_ver_region_num = "2"
s32_hor_expand_num = "2"
s32_ver_expand_num = "2"
u8_motion_coef_3 = "16"
u8_motion_coef_2 = "15"
u8_motion_coef_1 = "14"
u8_motion_coef_0 = "13"
f32_zero_mv_rate_th_2 = "98"
f32_zero_mv_rate_th_1 = "96"
f32_zero_mv_rate_th_0 = "95"
u8_static_coef_2 = "7"
u8_static_coef_1 = "6"
u8_static_coef_0 = "5"
u8_chroma_offset = "1"
s32_lv_weak_th_8 = "1100"
s32_lv_weak_th_7 = "900"
s32_lv_weak_th_6 = "700"
s32_lv_weak_th_5 = "500"
s32_lv_weak_th_4 = "400"
s32_lv_weak_th_3 = "300"
s32_lv_weak_th_2 = "200"
s32_lv_weak_th_1 = "100"
s32_lv_weak_th_0 = "0"
/>
<mb_rc_level status = "off" value = "0"/>
<f32_weak_text_th status = "off" value = "40"/>
<h264_video_timing status = "off"
u8_timing_info_present_flag = "0"
u8_fixed_frame_rate_flag = "1"
u32_num_units_in_tick = "1000"
u32_time_scale = "0"
/>
<h265_video_timing status = "off"
u32_timing_info_present_flag = "0"
u32_h265_num_units_in_tick = "1000"
u32_h265_time_scale = "0"
num_ticks_poc_diff_one_minus1 = "1000"
/>
</dynamic>
</demo>