Zhang, Boyuan wrote:
Hi Andy,
I just submitted another patch set, most of the issues you reported are solved,
please see the information below:
- Giving different frame rate should result different output size. The final
result from my side is very close to the CBR I set. Please give a try with
different frame rate and bit rate.
- Picture corruption (half height pic) is caused by interlaced setting.
Interlace encoding is not supported. However, for transcoding case, VAAPI
decode will use interlace mode, which will cause this issue. The temp solution
is to use an Environmental Variable to disable interlace when doing
transcoding. Please try the following command with the new patch:
DISABLE_INTERLACE=true gst-launch-1.0 filesrc
location=~/big_buck_bunny_720p_1mb.mp4 ! qtdemux ! h264parse ! vaapidecode !
vaapih264enc ! filesink location=out.264
- I420 yuv -> nv12 case seems working fine on my side, can you please provide
the testing raw file and command you were using? I want to reproduce the issue
from my side and try to fix it if possible. Thanks a lot!
Will try new patches tomorrow.
Here's a few frames of I420 in mkv at 1 fps, should play directly OK
with mplayer/mpv - building is yellow.
https://drive.google.com/file/d/0BxP5-S1t9VEEc3RhNzBQclhlNWc/view?usp=sharing
Of course google will make a preview but you should be able to download
the raw file by moving mouse towards the top of the screen.
Do
gst-launch-1.0 -f filesrc location=I420-5f.mkv ! matroskademux !
vaapih264enc ! h264parse ! mp4mux ! filesink location=out-I420-1.mp4
and the result is blue building, force gstreamer to convert to nv12
result is OK.
gst-launch-1.0 -f filesrc location=~/I420-5f.mkv ! matroskademux !
videoconvert ! video/x-raw,format=NV12 ! vaapih264enc ! h264parse !
mp4mux ! filesink location=out-I420-2.mp4
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