Bug 62136 - [staging intel-driver] Using i965_image_processing to convert NV12 to RGB produce corrupted RGB image.
Summary: [staging intel-driver] Using i965_image_processing to convert NV12 to RGB pro...
Status: RESOLVED FIXED
Alias: None
Product: libva
Classification: Unclassified
Component: intel (show other bugs)
Version: unspecified
Hardware: x86 (IA32) Linux (All)
: medium normal
Assignee: ykzhao
QA Contact: Sean V Kelley
URL:
Whiteboard:
Keywords:
Depends on:
Blocks:
 
Reported: 2013-03-11 02:59 UTC by Ung, Teng En
Modified: 2013-09-25 02:49 UTC (History)
1 user (show)

See Also:
i915 platform:
i915 features:

Attachments
Some code change to take the fastscale flag and use i965_image_processing to convert NV12 to RGM into swap buffer. (3.66 KB, text/plain)
2013-03-11 02:59 UTC, Ung, Teng En 		Details
Change the pitch of the RGB format. (529 bytes, text/plain)
2013-03-11 03:03 UTC, Ung, Teng En 		Details
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Description Ung, Teng En 2013-03-11 02:59:26 UTC 
Created attachment 76302 [details]
Some code change to take the fastscale flag and use i965_image_processing to convert NV12 to RGM into swap buffer.

Hi,

    I need some image format conversion features to test difference performance.  Anyway, with staging-20130205 on both libva and intel-va-driver.  I modified some code to use the i965_image_processing to convert NV12 to RGB but the output is corrupted.

    Intel Corporation Xeon E3-1200 v2/3rd Gen Core processor Graphics Controller [8086:0152] (rev 08)
    OS : Fedora 18
    Kernel : 3.7.4-204.fc18.i686
    libva : staging-20130205
    intel-va-driver : staging-20130205 with some patch to enable NV12 to RGB with i965_image_processing.
    vaapi-mplayer : latest
    screen info : 1920x1200@60

    With the attached patch apply to intel-va-driver.  Now when calling "./mplayer -vo vaapi:scaling=fast -va vaapi <video clip>" it will go to the path that use i965_image_processing to convert the NV12 to RGB into swap buffer and display it.  Anyway, the image is corrupted.

    Using the normal command are fine, "mplayer -vo vaapi -vaapi <video>".
Comment 1 Ung, Teng En 2013-03-11 03:03:28 UTC 
Created attachment 76303 [details]
Change the pitch of the RGB format.

By applying this patch (correct the RGB pitch), the output image show up, but the whole image are reddish.

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