[FFmpeg-trac] #8018(ffmpeg:new): RPi 4 h264_mmal error

FFmpeg trac at avcodec.org
Sat Jul 13 20:04:18 EEST 2019

#8018: RPi 4 h264_mmal error
             Reporter:  RAJensen   |                     Type:  defect
               Status:  new        |                 Priority:  normal
            Component:  ffmpeg     |                  Version:  git-master
             Keywords:  h264_mmal  |               Blocked By:
             Blocking:             |  Reproduced by developer:  0
Analyzed by developer:  0          |
 Summary of the bug:
 h264_mmal is no longer working on RPi4 with the new Broadcom chip 64-bit
 BCM2711 quad-core A72 CPU @ 1.5GHz VideoCore VI GPU.
 With same file, same compile it works on RPi3.
 GPU Ram set to 256Gb.
 How to reproduce:
 sudo ffmpeg -y -v 9 -loglevel 99 -report -ss 00:00:00 -c:v h264_mmal -i
 'RPI4_h264_mmal.ts' -to 00:01:00 -map 0:0 -map 0:3 -c:v h264_omx -b:v
 1500k -flags +global_header -c:a:0 copy 'test.mkv'

 ffmpeg version N-94282-g80dacbedba Copyright (c) 2000-2019 the FFmpeg
   built with gcc 8 (Raspbian 8.3.0-6+rpi1)
   configuration: --arch=armel --target-os=linux --enable-gpl --enable-mmal
 --enable-omx --enable-omx-rpi --enable-nonfree
 built on ...
 RAspberry Pi 4 OS=Buster
 I don't know but i think the error occurs because that the new chip has
 HDMI 0 and HDMI 1. I have tried with and without 4K resolution enabled on
 Testet on Buster with desktop and Buster Lite without desktop. Test done
 on RPi4 2Gb Ram and 4Gb RAM.
 FFMPEG info:
 V..... h264_omx             OpenMAX IL H.264 video encoder (codec h264)
  V..... h264_v4l2m2m         V4L2 mem2mem H.264 encoder wrapper (codec
  V..... h264_vaapi           H.264/AVC (VAAPI) (codec h264)
  VFS..D h264                 H.264 / AVC / MPEG-4 AVC / MPEG-4 part 10
  V..... h264_v4l2m2m         V4L2 mem2mem H.264 decoder wrapper (codec
  V..... h264_mmal            h264 (mmal) (codec h264)

Ticket URL: <https://trac.ffmpeg.org/ticket/8018>
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