[Libva] codec parser issues between gst-plugins-bad and gstreamer-vaapi

[Gwenole Beauchesne]

Hi,

2012/12/10 Yuan, Feng <feng.yuan at intel.com>:
> Thanks for your reply.
> Will you merge the patch into gst-vaapi?

If you tell me it works, yes. :)
Otherwise, I didn't test the patch since I don't have the issue, but I
understand the cause based on what you said.

Thanks,
Gwenole.

>> -----Original Message-----
>> From: Beauchesne, Gwenole
>> Sent: Monday, December 10, 2012 5:34 PM
>> To: Yuan, Feng
>> Cc: libva at lists.freedesktop.org; Li, Jocelyn; Zhong, CongX
>> Subject: RE: codec parser issues between gst-plugins-bad and gstreamer-
>> vaapi
>>
>> Hi,
>>
>> gst-vaapi pulls in newer code from gst-plugins-bad master, not 0.10 as
>> features and more important bug fixes that may break compatibility
>> happen there. gst-vaapi codecparsers will live forever for 0.10 based
>> branches, and will be removed for 1.x integration. Please try the attached
>> patch.
>>
>> Thanks,
>> Gwenole.
>> ________________________________________
>> From: Yuan, Feng
>> Sent: 10 December 2012 09:17
>> To: Beauchesne, Gwenole
>> Cc: libva at lists.freedesktop.org; Li, Jocelyn; Zhong, CongX
>> Subject: codec parser issues between gst-plugins-bad and gstreamer-vaapi
>>
>> Hi Gwenole,
>>      We saw codec parser moved into gstreamer-vaapi as a submodule for a
>> few weeks. PRC QA team reported some bugs of playbin2 errors but
>> manual pipeline works good.  e.g.
>> https://bugs.freedesktop.org/show_bug.cgi?id=55305. After Cong tracked
>> this bug, he found the issue was caused by codec parser which may get
>> confused when APIs exist both in gst-plugins-bad and gst-vaapi.
>>      Plugin <h264parse>, which is a gst-plugins-bad element, it calls API
>> *gst_h264_parser_parse_sps* in gsth264parser.c to parse SPS data which
>> should be in libgstcodecparser.so. The problem is that this API also exist in
>> gstream-vaapi as submodule which was a built-in in libgstvaapi-0.10.so.
>> This API may get unexpected result since *GstH264SPS* has different
>> definitions between gst-plugins-bad and gstreamer-vaapi.
>>      This issue blocked us, it seems we have to rebuild gst-plugins-bad every
>> time by force copy codec-parser from gst-vaapi to gst-plugins-bad. Do you
>> have any better idea to solve this issue?
>>       BTW, Why codec-parser was moved into gst-vaapi?Is it the reason that
>> gst-plugins-bad accept patches slow or something? How long would codec-
>> parser be in gst-vaapi, Temporally or always?
>>
>> Thanks,
>> Wind
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