Hello, for reference in case somebody reads the archives: I found an answer on the gstreamer matrix channel
gst-launch-1.0 filesrc location=/mnt/net/fs/mnt/disk/scratch/xbian/storage/ videos/Erdmännchen/002_Zum_in_die_Luft_gehen.mp4 ! qtdemux ! h264parse ! v4l2h264dec ! kmssink works for me. Rainer Am Sonntag, 3. November 2024, 15:24:38 CET schrieb Rainer Dorsch: > Hello, > > does anybody have a working gstreamer pipeline for the imx6 with HW video > decoding? > > Following https://trac.gateworks.com/wiki/ventana/vpu I setup the HW and > gstreamer reports > > rd@mo:~$ gst-inspect-1.0 | grep -P "v4l2.*dec" > video4linux2: v4l2h264dec: V4L2 H264 Decoder > video4linux2: v4l2jpegdec: V4L2 JPEG Decoder > video4linux2: v4l2mpeg2dec: V4L2 MPEG2 Decoder > video4linux2: v4l2mpeg4dec: V4L2 MPEG4 Decoder > rd@mo:~$ > > I also allocated extra cma memory > > rd@mo:~$ cat /proc/cmdline > console=ttymxc0,115200 quiet cma=256M > rd@mo:~$ > > But I did not manage to get a working h264 playback: > > # gst-launch-1.0 filesrc > location=/mnt/net/fs/mnt/disk/scratch/xbian/storage/ > videos/Erdmännchen/002_Zum_in_die_Luft_gehen.mp4 ! rtph264depay ! > v4l2h264dec ! kmssink name=imx-drm sync=0 > > Which outputs > > Setting pipeline to PAUSED ... > Pipeline is PREROLLING ... > ERROR: from element /GstPipeline:pipeline0/GstFileSrc:filesrc0: Internal > data stream error. > Additional debug info: > ../libs/gst/base/gstbasesrc.c(3132): gst_base_src_loop (): / > GstPipeline:pipeline0/GstFileSrc:filesrc0: > streaming stopped, reason error (-5) > ERROR: pipeline doesn't want to preroll. > Setting pipeline to NULL ... > Freeing pipeline ... > > When I use gstreamer's playbin, I get no errors, but the video is not > displayed properly and on the output are messages that the HW is too slow (I > assume in this case the HW decoder is not used). > > Any idea or hint is welcome. > > Many thanks > Rainer -- Rainer Dorsch http://bokomoko.de/
