Re: [FFmpeg-user] AMD screen record + h/w vaapi encode to mkv fails.

[Andy Furniss]

Andy Furniss wrote:

Andy Furniss wrote:

Haven't had time to bisect, but I can't screengrab to mkv any more.
kmsgrab + playing with vsync etc. give the same error as this example, 
mp4 works OK.


Bisected to -

commit ae7df68edd79bce5c318810c6b307ee4e81cd2a6
Author: James Almer 
Date:   Fri Nov 24 19:42:50 2017 -0300

 avformat/avc: return an error in ff_isom_write_avcc if the buffer 
lenght is too small


 Signed-off-by: James Almer 


I thought this was just screen rec initially, but it can be reproduced
with a transcode as well. Replacing mkv with mp4 in the examples will 
work OK.


Adding Mark to cc.

ffm -vaapi_device /dev/dri/renderD128 -i ~/abc-60fps.mp4 -an -sn -vf 
'format=nv12,hwupload' -c:v h264_vaapi -profile:v 578 -bf 0 -y ~/out.mkv
ffmpeg version N-90242-g5ab0ecf283 Copyright (c) 2000-2018 the FFmpeg 
developers

  built with gcc 7.3.0 (GCC)
  configuration: --prefix=/usr --disable-doc --enable-gpl 
--enable-libvpx --enable-libx265 --enable-libx264 --enable-gnutls 
--enable-libdrm --enable-libfreetype --enable-libmp3lame

  libavutil  56.  8.100 / 56.  8.100
  libavcodec 58. 13.102 / 58. 13.102
  libavformat58. 10.100 / 58. 10.100
  libavdevice58.  2.100 / 58.  2.100
  libavfilter 7. 12.100 /  7. 12.100
  libswscale  5.  0.102 /  5.  0.102
  libswresample   3.  0.101 /  3.  0.101
  libpostproc55.  0.100 / 55.  0.100
Input #0, mov,mp4,m4a,3gp,3g2,mj2, from '/home/andy/abc-60fps.mp4':
  Metadata:
major_brand : isom
minor_version   : 512
compatible_brands: isomiso2avc1mp41
encoder : Lavf58.0.100
  Duration: 00:01:36.00, start: 0.00, bitrate: 624 kb/s
Stream #0:0(und): Video: h264 (High) (avc1 / 0x31637661), yuv420p, 
1920x1080, 619 kb/s, 60 fps, 60 tbr, 15360 tbn, 120 tbc (default)

Metadata:
  handler_name: VideoHandler
Stream mapping:
  Stream #0:0 -> #0:0 (h264 (native) -> h264 (h264_vaapi))
Press [q] to stop, [?] for help
[h264_vaapi @ 0x4062880] Warning: some packed headers are not supported 
(want 0xd, got 0).
Could not write header for output file #0 (incorrect codec parameters 
?): Invalid data found when processing input

Error initializing output stream 0:0 --
Conversion failed!
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Re: [FFmpeg-user] AMD screen record + h/w vaapi encode to mkv fails.

[Andy Furniss]

Andy Furniss wrote:

Haven't had time to bisect, but I can't screengrab to mkv any more.
kmsgrab + playing with vsync etc. give the same error as this example, 
mp4 works OK.


Bisected to -

commit ae7df68edd79bce5c318810c6b307ee4e81cd2a6
Author: James Almer 
Date:   Fri Nov 24 19:42:50 2017 -0300

avformat/avc: return an error in ff_isom_write_avcc if the buffer 
lenght is too small


Signed-off-by: James Almer 

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ffmpeg-user@ffmpeg.org
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[FFmpeg-user] AMD screen record + h/w vaapi encode to mkv fails.

[Andy Furniss]

Haven't had time to bisect, but I can't screengrab to mkv any more.
kmsgrab + playing with vsync etc. give the same error as this example, 
mp4 works OK.


 ffm -loglevel debug -vaapi_device /dev/dri/renderD128 -f x11grab 
-video_size 1920x1080 -i :0 -vf 'format=nv12,hwupload' -c:v h264_vaapi 
-profile:v 578 -bf 0 -y out.mkv
ffmpeg version N-90148-g0419623cdc Copyright (c) 2000-2018 the FFmpeg 
developers

  built with gcc 7.3.0 (GCC)
  configuration: --prefix=/usr --disable-doc --enable-gpl 
--enable-libvpx --enable-libx265 --enable-libx264 --enable-gnutls 
--enable-libdrm --enable-libfreetype --enable-libmp3lame

  libavutil  56.  7.101 / 56.  7.101
  libavcodec 58. 12.102 / 58. 12.102
  libavformat58.  9.100 / 58.  9.100
  libavdevice58.  2.100 / 58.  2.100
  libavfilter 7. 12.100 /  7. 12.100
  libswscale  5.  0.101 /  5.  0.101
  libswresample   3.  0.101 /  3.  0.101
  libpostproc55.  0.100 / 55.  0.100
Splitting the commandline.
Reading option '-loglevel' ... matched as option 'loglevel' (set logging 
level) with argument 'debug'.
Reading option '-vaapi_device' ... matched as option 'vaapi_device' (set 
VAAPI hardware device (DRM path or X11 display name)) with argument 
'/dev/dri/renderD128'.
Reading option '-f' ... matched as option 'f' (force format) with 
argument 'x11grab'.
Reading option '-video_size' ... matched as AVOption 'video_size' with 
argument '1920x1080'.

Reading option '-i' ... matched as input url with argument ':0'.
Reading option '-vf' ... matched as option 'vf' (set video filters) with 
argument 'format=nv12,hwupload'.
Reading option '-c:v' ... matched as option 'c' (codec name) with 
argument 'h264_vaapi'.
Reading option '-profile:v' ... matched as option 'profile' (set 
profile) with argument '578'.

Reading option '-bf' ... matched as AVOption 'bf' with argument '0'.
Reading option '-y' ... matched as option 'y' (overwrite output files) 
with argument '1'.

Reading option 'out.mkv' ... matched as output url.
Finished splitting the commandline.
Parsing a group of options: global .
Applying option loglevel (set logging level) with argument debug.
Applying option vaapi_device (set VAAPI hardware device (DRM path or X11 
display name)) with argument /dev/dri/renderD128.
[AVHWDeviceContext @ 0x2152640] Opened VA display via DRM device 
/dev/dri/renderD128.

[AVHWDeviceContext @ 0x2152640] libva: VA-API version 1.1.0
[AVHWDeviceContext @ 0x2152640] libva: va_getDriverName() returns 0
[AVHWDeviceContext @ 0x2152640] libva: User requested driver 'radeonsi'
[AVHWDeviceContext @ 0x2152640] libva: Trying to open 
/usr/lib/dri/radeonsi_drv_video.so
[AVHWDeviceContext @ 0x2152640] libva: Found init function 
__vaDriverInit_1_1

[AVHWDeviceContext @ 0x2152640] libva: va_openDriver() returns 0
[AVHWDeviceContext @ 0x2152640] Initialised VAAPI connection: version 1.1
[AVHWDeviceContext @ 0x2152640] Format 0x3231564e -> nv12.
[AVHWDeviceContext @ 0x2152640] Format 0x30313050 -> p010le.
[AVHWDeviceContext @ 0x2152640] Format 0x36313050 -> unknown.
[AVHWDeviceContext @ 0x2152640] Format 0x32315659 -> yuv420p.
[AVHWDeviceContext @ 0x2152640] Format 0x56595559 -> unknown.
[AVHWDeviceContext @ 0x2152640] Format 0x59565955 -> uyvy422.
[AVHWDeviceContext @ 0x2152640] Format 0x41524742 -> bgra.
[AVHWDeviceContext @ 0x2152640] Format 0x41424752 -> rgba.
[AVHWDeviceContext @ 0x2152640] Format 0x58524742 -> bgr0.
[AVHWDeviceContext @ 0x2152640] Format 0x58424752 -> rgb0.
[AVHWDeviceContext @ 0x2152640] Unknown driver "Mesa Gallium driver 
18.1.0-devel for AMD Radeon R9 200 Series (TONGA / DRM 3.25.0 / 
4.16.0-rc1-g2693c7e7ca44, LLVM 7.0.0)", assuming standard behaviour.

Applying option y (overwrite output files) with argument 1.
Successfully parsed a group of options.
Parsing a group of options: input url :0.
Applying option f (force format) with argument x11grab.
Successfully parsed a group of options.
Opening an input file: :0.
[x11grab @ 0x223ca00] Probe buffer size limit of 500 bytes reached
[x11grab @ 0x223ca00] Stream #0: not enough frames to estimate rate; 
consider increasing probesize

Input #0, x11grab, from ':0':
  Duration: N/A, start: 1519432751.575405, bitrate: N/A
Stream #0:0, 1, 1/100: Video: rawvideo, 1 reference frame 
(BGR[0] / 0x524742), bgr0, 1920x1080, 0/1, 29.97 fps, 1000k tbr, 1000k 
tbn, 1000k tbc

Successfully opened the file.
Parsing a group of options: output url out.mkv.
Applying option vf (set video filters) with argument format=nv12,hwupload.
Applying option c:v (codec name) with argument h264_vaapi.
Applying option profile:v (set profile) with argument 578.
Successfully parsed a group of options.
Opening an output file: out.mkv.
[file @ 0x224ab40] Setting default whitelist 'file,crypto'
Successfully opened the file.
Stream mapping:
  Stream #0:0 -> #0:0 (rawvideo (native) -> h264 (h264_vaapi))
Press [q] to stop, [?] for help
cur_dts is invalid (this is harmless if it occurs once at the start per 
stream)

[rawvideo @ 0x22467c0]