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IDProjectCategoryView StatusLast Update
0000570T99X171.00 SKB EagleSWpublic2019-04-25 13:32
Reporter(ALTech) SY Yoon Assigned To(ALTech) SY Yoon Due Date2019-04-22 20:08
PriorityhighSeveritys2-severeReproducibilityhave not tried
Status closedResolutionfixed 
Summary0000570: EDID File save function
DescriptionI got some request about HDMI EDID from TV Strom.
It is function that save EDID information of connected TV to file.

The details of EDID file creation, deletion and contents of file are as follows :
   1. The location of EDID file : /btv_home/tmp/hdmi-edid.xml
   2. Operation
       - Read EDID information of connected TV when HDMI is connected(include boot).
         And create hdmi-edit.xml file. Refer attached file
       - Delete hdmi-edit.xml when HDMI is disconnected.
   3. File contents are as follows : Refer to attached sample file
       - information on EDID header (TV manufacturer, model name, date of manufacture, etc.)
       - EDID total hex value
       - Supported video resolution
       - Optimal resolution
       - Supported Audio
       - Supported color
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Users monitoring this issue

User List (ALTech) Eric Kim , (ALTech) Jewoo Lee , (SW) Jim Chen

Activities

(ALTech) SY Yoon

2019-03-21 19:11

developer  

hdmi-edid.xml (1,889 bytes)

(SW) River Wong

2019-03-22 10:46

developer   ~0001669

Hi Yoon,

Could you help to confirm the following questions?
1."model_name" in <hdmi_edid>.
There is no "model_name" in EDID spec.
Could TVS provide the mapping list for "manugcature id" and "model name"?
If TVS can not provide the mapping list, we can only map "manufacture id" to the company who register the "manufcaturer id" from the list in https://uefi.org/pnp_id_list.
Is this OK?
(Please note the "GSM" will map to "GOLDSTAR COMPANY LTD" instead of "LG TV" in https://uefi.org/pnp_id_list)

2."codec" in <audio>
Does TVS define the list of codec string for codec attribute in <audio> ?
If not, we will use the current Amloigc defined codec string. For example,we will use "AC-3" instead of "AC3".

3."depth" in <color>
Does "depth" only have the value 0 and 1?
0: Do not support depth color
1: Support depth color

(ALTech) SY Yoon

2019-03-22 17:15

developer   ~0001675

Hi Wong,

I discussed with TVS.
They said that it is come from TV.
And what they need is hex part.

1. "model_name" in <hdmi_edid>.
     They don't care about manufacturer ID and Model Name.

 2."codec" in <audio>
     They don't care about it. You can use as you want.

 3."depth" in <color>
     They think that it has 0 ~ 6.

I think that we would better to implement it first and the ask TVS to check it..

(SW) River Wong

2019-03-26 08:48

developer   ~0001703

Hi Yoon,

Thanks for your help.
We now know the edid hex is the most important information which TVS wants.

Regarding the 3. depth, We will implement it as EDID spec in Table 6-1 Color Depth value:
0: for no Color Depth
1~3: reserved
4: for 24 bits per pixel
5: for 30 bits per pixel
6: for 36 bits per pixel
7: for 48 bits per pixel
Color_Depth_Value.jpg (88,792 bytes)   
Color_Depth_Value.jpg (88,792 bytes)   

(SW) River Wong

2019-04-01 09:57

developer   ~0001783

Hi Yoon,

We implemented it and today's release r7 will include this function.
Please have TVS to check it and let me know if there is any thing we need to modify. Thanks.

(SW) River Wong

2019-04-01 10:02

developer   ~0001784

This function will be included in next firmware release r7.

(ALTech) SY Yoon

2019-04-03 09:27

developer   ~0001841

TVS Checked.

(ALTech) SY Yoon

2019-04-18 21:16

developer   ~0002086

I have additional request from UEI on EDID File.

1. Hex file format
    It should be 16bytes every line, such as
       <edid_hex>
       00FFFFFFFFFFFF001E6DC65901010101
       0117010380331D78EA6275A3554FA027
       125054A56F00714F81C0810081809500
       9040A9C0B300023A801871382D40582C
       4500FD1E1100001A21399030621A2740
       68B03600FD1E1100001C000000FD0038
       4B1E530F000A202020202020000000FC
       00324420464844204C472054560A0115
       020324F14E8405030220221011131214
       1F07162915075009070738075066030C
       00100080011D007251D01E2038881500
       56502100001E011D8018711C1620582C
       250056502100009E011D80D0721C1620
       102C2580C48E2100009E023A80D07238
       2D40102C452006442100001E023A8018
       71382D40582C450056502100001E0039
       </edid_hex>
   Please refer the file that I attached first.

2. Please change mode of edid file
    current
           -rw------- 1 root system 1381 2019-04-18 16:05 /data/btv_home/tmp/hdmi-edid.xml
    What we want is
           -rw-r--r-- 1 root system 1591 2019-04-18 16:07 /data/btv_home/tmp/hdmi-edid.xml

(SW) River Wong

2019-04-22 16:46

developer   ~0002119

The modifications about the raw edid format and file mode wil be included in r13 release.

(ALTech) Jewoo Lee

2019-04-25 13:32

developer   ~0002194

Confirmed the result(xml) properly meets the requirement.

Issue History

Date Modified Username Field Change
2019-03-21 19:11 (ALTech) SY Yoon New Issue
2019-03-21 19:11 (ALTech) SY Yoon Status new => assigned
2019-03-21 19:11 (ALTech) SY Yoon Assigned To => (SW) Jacky Chiang
2019-03-21 19:11 (ALTech) SY Yoon File Added: hdmi-edid.xml
2019-03-21 19:12 (ALTech) SY Yoon Issue Monitored: (SW) Jim Chen
2019-03-21 19:12 (ALTech) SY Yoon Issue Monitored: (ALTech) Eric Kim
2019-03-21 19:12 (ALTech) SY Yoon Issue Monitored: (ALTech) Jewoo Lee
2019-03-21 20:04 (SW) Jacky Chiang Assigned To (SW) Jacky Chiang => (SW) River Wong
2019-03-22 10:46 (SW) River Wong Note Added: 0001669
2019-03-22 17:15 (ALTech) SY Yoon Note Added: 0001675
2019-03-26 08:48 (SW) River Wong File Added: Color_Depth_Value.jpg
2019-03-26 08:48 (SW) River Wong Note Added: 0001703
2019-04-01 09:57 (SW) River Wong Note Added: 0001783
2019-04-01 10:02 (SW) River Wong Assigned To (SW) River Wong => (ALTech) SY Yoon
2019-04-01 10:02 (SW) River Wong Status assigned => resolved
2019-04-01 10:02 (SW) River Wong Resolution open => fixed
2019-04-01 10:02 (SW) River Wong Note Added: 0001784
2019-04-03 09:27 (ALTech) SY Yoon Status resolved => closed
2019-04-03 09:27 (ALTech) SY Yoon Note Added: 0001841
2019-04-18 21:16 (ALTech) SY Yoon Assigned To (ALTech) SY Yoon => (SW) Jacky Chiang
2019-04-18 21:16 (ALTech) SY Yoon Status closed => feedback
2019-04-18 21:16 (ALTech) SY Yoon Resolution fixed => reopened
2019-04-18 21:16 (ALTech) SY Yoon Due Date 2019-03-25 20:08 => 2019-04-22 20:08
2019-04-18 21:16 (ALTech) SY Yoon Note Added: 0002086
2019-04-19 17:48 (SW) Jacky Chiang Assigned To (SW) Jacky Chiang => (SW) River Wong
2019-04-19 17:48 (SW) Jacky Chiang Status feedback => assigned
2019-04-22 16:46 (SW) River Wong Assigned To (SW) River Wong => (ALTech) SY Yoon
2019-04-22 16:46 (SW) River Wong Status assigned => resolved
2019-04-22 16:46 (SW) River Wong Resolution reopened => fixed
2019-04-22 16:46 (SW) River Wong Note Added: 0002119
2019-04-25 13:32 (ALTech) Jewoo Lee Status resolved => closed
2019-04-25 13:32 (ALTech) Jewoo Lee Note Added: 0002194