[Bug 98005] VCE dual instance encoding inconsistent since st/va: enable dual instances encode by sync surface

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=98005

--- Comment #5 from Andy Furniss <adf.lists at gmail.com> ---
I normally test with raw, but this sample also shows the issue with transcode,

I tried harder and it is possible since the patch to get a normal size vbr -
just a lot harder than before.

1080p50.mkv -
https://drive.google.com/file/d/0BxP5-S1t9VEEczlMd2ZzUElldms/view?usp=sharing

Here's a paste testing with your settings.

andy [vce-vbr-test]$ gst-launch-1.0 -f filesrc location=1080p50.mkv !
matroskademux ! vaapidecode ! vaapih264enc rate-control=vbr bitrate=21428 !
video/x-h264,profile=baseline ! filesink location=vbr.264
Setting pipeline to PAUSED ...
libva info: VA-API version 0.39.2
libva info: va_getDriverName() returns 0
libva info: User requested driver 'radeonsi'
libva info: Trying to open /usr/lib/dri/radeonsi_drv_video.so
libva info: Found init function __vaDriverInit_0_39
libva info: va_openDriver() returns 0
Pipeline is PREROLLING ...
Got context from element 'vaapiencodeh264-0': gst.vaapi.Display=context,
gst.vaapi.Display=(GstVaapiDisplay)NULL;
Redistribute latency...
Pipeline is PREROLLED ...
Setting pipeline to PLAYING ...
New clock: GstSystemClock
Got EOS from element "pipeline0".
Execution ended after 0:00:05.440943972
Setting pipeline to PAUSED ...
Setting pipeline to READY ...
Setting pipeline to NULL ...
Freeing pipeline ...



andy [vce-vbr-test]$ gst-launch-1.0 -f filesrc location=1080p50.mkv !
matroskademux ! vaapidecode ! vaapih264enc rate-control=cbr bitrate=15000 !
video/x-h264,profile=baseline ! filesink location=cbr.264
Setting pipeline to PAUSED ...
libva info: VA-API version 0.39.2
libva info: va_getDriverName() returns 0
libva info: User requested driver 'radeonsi'
libva info: Trying to open /usr/lib/dri/radeonsi_drv_video.so
libva info: Found init function __vaDriverInit_0_39
libva info: va_openDriver() returns 0
Pipeline is PREROLLING ...
Got context from element 'vaapiencodeh264-0': gst.vaapi.Display=context,
gst.vaapi.Display=(GstVaapiDisplay)NULL;
Redistribute latency...
Pipeline is PREROLLED ...
Setting pipeline to PLAYING ...
New clock: GstSystemClock
Got EOS from element "pipeline0".
Execution ended after 0:00:05.162493127
Setting pipeline to PAUSED ...
Setting pipeline to READY ...
Setting pipeline to NULL ...
Freeing pipeline ...


andy [vce-vbr-test]$ ls -lh
total 85M
-rw-rw-r-- 1 andy andy 35M Sep 28 16:05 1080p50.mkv
-rw-rw-r-- 1 andy andy 35M Oct 18 21:17 cbr.264
-rw-rw-r-- 1 andy andy 15M Oct 18 21:16 vbr.264

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