gst-launch-1.0 filesrc blocksize=10000000 location=infile.mp4 ! videoparse format=i420 height=1080 width=1920 framerate=30/1 ! vaapipostproc ! queue ! vaapiencode_h264 ! qtmux ! filesink location=test2.mp4
libva info: VA-API version 0.37.0
libva info: va_getDriverName() returns 0
libva info: Trying to open /usr/lib/x86_64-linux-gnu/dri/i965_drv_video.so
libva info: Found init function __vaDriverInit_0_37
libva info: va_openDriver() returns 0
Setting pipeline to PAUSED ...
Pipeline is PREROLLING ...
Got context from element 'vaapipostproc0': gst.vaapi.Display=context, display=(GstVaapiDisplay)NULL;
ERROR: from element /GstPipeline:pipeline0/GstVaapiEncodeH264:vaapiencodeh264-0: GStreamer error: negotiation problem.
Additional debug info:
gstvideoencoder.c(1463): gst_video_encoder_chain (): /GstPipeline:pipeline0/GstVaapiEncodeH264:vaapiencodeh264-0:
encoder not initialized
ERROR: pipeline doesn't want to preroll.
Setting pipeline to NULL ...
Freeing pipeline ...