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IDProjectCategoryView StatusLast Update
0001456T99X171.00 SKB EagleSWpublic2022-05-27 13:22
Reporter(ALTech) Younkwang Jung Assigned To(ALTech) Younkwang Jung Due Date
PrioritynormalSeveritys4-minorReproducibilityhave not tried
Status closedResolutionfixed 
Summary0001456: [Smart3] About hdmi-edid.xml codec string
DescriptionHi Kerwin

There are the following issues in the field:
https://jira.skbroadband.com/browse/BTVV-4273

One reason for this issue is the string AC-3.
Other manufacturers are using AC3, but FXN models use AC-3 string.
Of course, this happens because there is no predefined definition of which codec string to use.
(Maybe it's going to be define soon.)

1) The FXN is creating an hdmi-edid.xml file using the result of edid parsing at Amlogic. is it correct?
2) What is the format of the data of the result of the edid parsing in Amlogic?
   Please write down the actual data.
3) Can I check the hdmi-edid.xml file generation code?
4) Is the codec format string of hdmi-edid.xml used by tvstorm MW (Android 9)?
   
I have to explain the current situation to SKB, so please check it.

Thank you.
YK.Jung
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Users monitoring this issue

User List (ALTech) JunGyu Kim , (ALTech) SY Yoon , (SW) Brent Choi

Activities

(ALTech) Younkwang Jung

2022-03-31 09:48

developer  

AC3_string.PNG (408,884 bytes)

(ALTech) Younkwang Jung

2022-03-31 10:15

developer   ~0009758

Hi Kerwin

I've checked QA Samsung TV.

..
<supported_Audio>
<audio codec="PCM" ch="8" SamplingRate="32/44.1/48/96/192" />
<audio codec="AC-3" ch="6" SamplingRate="32/44.1/48" />
<audio codec="Dobly_Digital+/ATMOS" ch="8" SamplingRate="32/44.1/48" />
<audio codec="MAT" ch="8" SamplingRate="48/96/192" />
<audio codec="PCM" ch="2" SamplingRate="32/44.1/48" />
</supported_Audio>
..

Please describe all the codec strings that can be displayed.

Thank you
YK.Jung
hdmi-edid.xml (2,766 bytes)

(SW) Kerwin Chen

2022-03-31 11:27

developer   ~0009760

Hi YK,

If HLS Player wants to know audio profiles on the device, I suggest to use Android API, not get from hdmi-edid.xml directly.

1) The FXN is creating an hdmi-edid.xml file using the result of edid parsing at Amlogic. is it correct?
==> Yes, we write strings based sysfs node on Amlogic. (/sys/class/amhdmitx/amhdmitx0/aud_cap)
The sysfs node is also used in Amlogic's audio HAL.

2) What is the format of the data of the result of the edid parsing in Amlogic?
   Please write down the actual data.
==> It is the same as Amlogic's sysfs node.

3) Can I check the hdmi-edid.xml file generation code?
==> It is implemented in file, HDCPTxAuth::generateEdidXmlFile()
vendor/amlogic/common/frameworks/services/systemcontrol/HDCP/HDCPTxAuth.cpp

4) Is the codec format string of hdmi-edid.xml used by tvstorm MW (Android 9)?
==> We don't have information about it. It was heard that this file is for debug purpose.

Thank you !

(ALTech) Younkwang Jung

2022-03-31 12:26

developer   ~0009762

Hi Kerwin

I checked the information you told me.
Thank you.
YK.Jung

Issue History

Date Modified Username Field Change
2022-03-31 09:48 (ALTech) Younkwang Jung New Issue
2022-03-31 09:48 (ALTech) Younkwang Jung Status new => assigned
2022-03-31 09:48 (ALTech) Younkwang Jung Assigned To => (SW) Kerwin Chen
2022-03-31 09:48 (ALTech) Younkwang Jung File Added: AC3_string.PNG
2022-03-31 09:50 (ALTech) Younkwang Jung Issue Monitored: (SW) Brent Choi
2022-03-31 09:50 (ALTech) Younkwang Jung Issue Monitored: (ALTech) SY Yoon
2022-03-31 09:50 (ALTech) Younkwang Jung Issue Monitored: (ALTech) JunGyu Kim
2022-03-31 10:15 (ALTech) Younkwang Jung File Added: hdmi-edid.xml
2022-03-31 10:15 (ALTech) Younkwang Jung Note Added: 0009758
2022-03-31 11:27 (SW) Kerwin Chen Note Added: 0009760
2022-03-31 11:28 (SW) Kerwin Chen Assigned To (SW) Kerwin Chen => (ALTech) Younkwang Jung
2022-03-31 11:28 (SW) Kerwin Chen Status assigned => acknowledged
2022-03-31 12:26 (ALTech) Younkwang Jung Note Added: 0009762
2022-05-27 13:22 (ALTech) Younkwang Jung Status acknowledged => closed
2022-05-27 13:22 (ALTech) Younkwang Jung Resolution open => fixed