Identify CM7 HD Recording issue and need help to modify libcameraservice.so

This post is better to be in xt720 Dev board. But it is a pity that I don't have the privilege to post in that board now. So anybody who kindly help forward to the dev board would be great appreicated.
For quite a long time, we sufferred to HD record issue in CM7. And I spent some days inveistigaing this issue and fortunatelly got some interesting findings to share.

1. 720p HD recording fail becasue of wrong width and height parameter pass to function createOverlay in libsurfaceflinger.so.
02-13 17:38:12.030: D/TIOverlay(1876): overlay_createOverlay:IN w=768 h=432 format=99
02-13 17:38:12.030: I/Overlay(1876): v4l2_overlay_init:: w=480 h=854
02-13 17:38:12.030: I/Overlay(1876): v4l2_overlay_init:: w=768 h=432
02-13 17:38:12.030: I/Overlay(1876): v4l2_overlay_init:: w=768 h=432
Here we see, the paramter passed to createOverly is (768,432). And in comparison with 2.2 stocked Rom, the right parameter should be (1280,720) for HD recording.

2. The wrong width/height parameter is set in libcameraservice.so. Perhaps CM7 forbids HD recording...
02-13 17:38:12.030: D/CameraService(1540): Changing overlay dimensions to 768X432 for 720p recording.
And double check by open libcameraservice.so, we found the matched words in the above at the address of 0x000ae00h. The very possible guess is CM7's libcameraservice.so check width/height parameter, whenever it detect the parameters are for HD record, it reset the paramter to (768,432)!!

Proposed solution:
If someone could kindly help modify the code to comment the piece of code and build a new libcameraservice.so, we may have chance to bring HD recording back.

Great thanks!
libcameraservice.so is the current blocking issue I have identified. Certainly, there are possible some issues come out after we solved this one.
BTW, I've enabled 720p hardware video decoding in CM7. The phone could now play 720p video smoothly. This should be a good basie to fix HD recording issue.

Hi peshovec, I also read your reply in dev board.
As you got the same finding and have already fixed the code, could you please share the new built libcameraservice.so? I don't have CM7 source code at hand, and it will take me several days to sync. Last month, I spent near two weeks to sync CM9 code ...
And one important thing, we might need to keep libcameraswervice.so compatible with old 2.2 driver libcamera.so. libcameraservice.so from other 2.3 Rom contains a new function "_HAL_Camerainfo" ( sorry, did not remember clearly) that does not implemented in old libcamera.so. The trick I saw in the code is to "#define BOARD_USE_FROYO_LIBCAMERA".
I am quite interested to follow-up on this HD record issue with all of you help!

And for 720p playback, I mean to hardware decode some 720p video.
Xt720's CPU is able to support h264 baseline profile, but could not support H264 high profile. So I am afraid for 1080p video and H264 high profile 720p on youtube, our phone still could not play with hardware decode.
The trick to fix 720p hardware decode is to use old xt720 2.1's codec: lib\hw\*, and libOMX.TI.*. The existed libOMX.TI.720P.Decode.so in CM7 support other phones (e.g. Defy) well, but not support xt720.
I tested my phone after the fix of 720p HW decode with one 720p video, and found my phone could play the video smoothly with either Moboplayer or Moto Videoplayer. And before the fix, the playback could only use SW decode, and even overclock to 1GHz, the pictures was still lag behind of voice.

Hi Mioze7Ae, I also did investigations on media_profiles.xml and build.prop.
Acutually, stocked 2.2 xt720 Rom is not necessarily to rely on those settings in either media_profiles.xml or build.prop. As you observed, all resolution parameter was set in Camera.apk. I tested xt720 2.2 Rom without media_profiles.xml and none of related settings in build.prop, 720p HD video still work fine. And for xt711 phone, it even don't have media_profiles.xml in the official Rom.
Ah, 5 post now. Still need 5 other post ...

Thanks for the attachment! I will have try and give update later.
I tried to play some H264 high profile video: voice only and no pictures.
xt720's CPU fail to HW decode thoese video.
The workaround solution is to download the video, then we could choose SW decode in mediaplayer ( I used moboplayer). But the video play is very terrible, the picture play frame by frame, even though I have overclock to 1GHz.

Haha, the quick update is HD 720p recording preview work fine! Verly clearly and smoothly view from preview window!!
On the way home now, will do some more tests later.

Mark: 9 post now

Yeah, 720p HD recording is perfectly fixed!
Now we could enjoy HD recording in CM7!
BTW, I didn't tested your media_profile.xml. Now I used the one in 2.2 stocked ROM.
10 post now, heihei...
I will packed my Rom and share in Dev board tomorrow.

My phone is able to HD recorde in 2.1 and and 2.2 Rom, but lose this ablity when upgrade to CM7 2.3 Rom.
Not sure whether our phone have some HW difference.

I am uploading my Rom to DEV board.
Have a try.