[libav-bugs] [Bug 1054] New: avconv stop processing when using on Kaby Lake intel's 7th generation processor

bugzilla at libav.org bugzilla at libav.org
Mon May 1 22:33:33 CEST 2017


https://bugzilla.libav.org/show_bug.cgi?id=1054

            Bug ID: 1054
           Summary: avconv stop processing when using on Kaby Lake intel's
                    7th generation processor
           Product: Libav
           Version: git HEAD
          Hardware: X86
                OS: Linux
            Status: NEW
          Severity: blocker
          Priority: ---
         Component: utilities
          Assignee: bugzilla at libav.org
          Reporter: humam at livebarn.com

- libav-tools compiled locally to enable vaapi for Kaby Lake intel's 7th
generation processor:
./configure \
--arch=x86_64 \
--cpu=native \
--libdir=/usr/lib/x86_64-linux-gnu \
--incdir=/usr/include/x86_64-linux-gnu \
--cc=cc \
--toolchain=hardened \
--enable-gpl \
--enable-avresample \
--enable-vaapi \
--enable-libx264 \
--enable-gray \
--enable-decoder=mjpeg,png \
--enable-demuxer=image2 \
--enable-protocol=file \
--enable-zlib

- The following works only for loop 0 which plays a 1000 pngs once nicely the
continue to play the feed

avconv  -hwaccel vaapi  -hwaccel_device /dev/dri/renderD128  -i
rtsp://192.168.1.19:554/axis-media/media.amp?streamprofile=Main  -f image2  -r
120  -loop 1  -i marquee_%06d.png  -filter_complex
'[0:0]setpts=PTS-STARTPTS[v_broadcast];[v_broadcast][1:0]overlay=x=0:y=100[overlay_01];[0:1]asetpts=PTS-STARTPTS[a_broadcast]'
 -map '[overlay_01]'  -c:0 libx264  -pix_fmt yuvj420p  -tune zerolatency 
-preset ultrafast  -threads auto  -map '[a_broadcast]'  -c:1 aac  -b:1 64k 
-r:1 16k  -ac 2  -strict experimental  -f mpegts udp://127.0.0.1:12345


- When using avconv through apt-get the code works but without being able to
use the processor full capacities.

- I could not come out with any way to loop a group of images except like this.
I tried to put them in a video and use -re but that does not help.

Thank you,
Humam

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