[FFmpeg-trac] #10915(undetermined:new): using hardware encoding and decoding, change the resolution of videos, and merge them using concat

FFmpeg trac at avcodec.org
Wed Mar 20 04:31:28 EET 2024


#10915: using hardware encoding and decoding, change the resolution of videos, and
merge them using concat
-------------------------------------+-------------------------------------
             Reporter:  elias        |                     Type:  defect
  tsolis                             |
               Status:  new          |                 Priority:  normal
            Component:               |                  Version:
  undetermined                       |  unspecified
             Keywords:               |               Blocked By:
             Blocking:               |  Reproduced by developer:  0
Analyzed by developer:  0            |
-------------------------------------+-------------------------------------
 Two videos with different resolution, framerates, and the rest, i would
 like to join them together by making framerates =25 , and resolution
 1920x1080.

 I want to use encoding and decoding hardware acceleration.
 However, it fails.
 `Impossible to convert between the formats supported by the filter
 'Parsed_scale_vaapi_2' and the filter 'auto_scale_1'
 `


 ```
 ffmpeg version 6.1.1-1 Copyright (c) 2000-2023 the FFmpeg developers
   built with gcc 13 (Debian 13.2.0-9)
   configuration: --prefix=/usr --extra-version=1 --toolchain=hardened
 --libdir=/usr/lib/x86_64-linux-gnu --incdir=/usr/include/x86_64-linux-gnu
 --arch=amd64 --enable-gpl --disable-stripping --enable-gnutls --enable-
 ladspa --enable-libaom --enable-libass --enable-libbluray --enable-libbs2b
 --enable-libcaca --enable-libcdio --enable-libcodec2 --enable-libdav1d
 --enable-libflite --enable-libfontconfig --enable-libfreetype --enable-
 libharfbuzz --enable-libfribidi --enable-libglslang --enable-libgme
 --enable-libgsm --enable-libjack --enable-libmp3lame --enable-libmysofa
 --enable-libopenjpeg --enable-libopenmpt --enable-libopus --enable-
 libpulse --enable-librabbitmq --enable-librist --enable-librubberband
 --enable-libshine --enable-libsnappy --enable-libsoxr --enable-libspeex
 --enable-libsrt --enable-libssh --enable-libtheora --enable-libtwolame
 --enable-libvidstab --enable-libvorbis --enable-libvpx --enable-libwebp
 --enable-libx265 --enable-libxml2 --enable-libxvid --enable-libzimg
 --enable-libzmq --enable-libzvbi --enable-lv2 --enable-omx --enable-openal
 --enable-opencl --enable-opengl --enable-sdl2 --disable-sndio --enable-
 libjxl --enable-pocketsphinx --enable-librsvg --enable-libvpl --disable-
 libmfx --enable-libdc1394 --enable-libdrm --enable-libiec61883 --enable-
 chromaprint --enable-frei0r --enable-libsvtav1 --enable-libx264 --enable-
 libplacebo --enable-librav1e --enable-shared
   libavutil      58. 29.100 / 58. 29.100
   libavcodec     60. 31.102 / 60. 31.102
   libavformat    60. 16.100 / 60. 16.100
   libavdevice    60.  3.100 / 60.  3.100
   libavfilter     9. 12.100 /  9. 12.100
   libswscale      7.  5.100 /  7.  5.100
   libswresample   4. 12.100 /  4. 12.100
   libpostproc    57.  3.100 / 57.  3.100
 [mov,mp4,m4a,3gp,3g2,mj2 @ 0x564257deb200] Auto-inserting h264_mp4toannexb
 bitstream filter
 Input #0, concat, from './vids.txt':
   Duration: N/A, start: 0.000000, bitrate: 16895 kb/s
   Stream #0:0(eng): Video: h264 (High) (avc1 / 0x31637661), yuv420p(tv,
 bt709, progressive), 1920x1080, 16767 kb/s, 29.39 fps, 29.58 tbr, 90k tbn
     Metadata:
       handler_name    : VideoHandle
       vendor_id       : [0][0][0][0]
   Stream #0:1(eng): Audio: aac (LC) (mp4a / 0x6134706D), 48000 Hz, mono,
 fltp, 128 kb/s
     Metadata:
       handler_name    : SoundHandle
       vendor_id       : [0][0][0][0]
 File 'out_video.mp4' already exists. Overwrite? [y/N] y
 Stream mapping:
   Stream #0:0 -> #0:0 (h264 (native) -> hevc (hevc_vaapi))
   Stream #0:1 -> #0:1 (aac (native) -> aac (native))
 Press [q] to stop, [?] for help
 [hevc_vaapi @ 0x564257d3e8c0] Driver does not support some wanted packed
 headers (wanted 0xd, found 0x1).
 Output #0, mp4, to 'out_video.mp4':
   Metadata:
     encoder         : Lavf60.16.100
   Stream #0:0(eng): Video: hevc (Main) (hev1 / 0x31766568), vaapi(tv,
 bt709, progressive), 1920x1080, q=2-31, 25 fps, 12800 tbn
     Metadata:
       handler_name    : VideoHandle
       vendor_id       : [0][0][0][0]
       encoder         : Lavc60.31.102 hevc_vaapi
   Stream #0:1(eng): Audio: aac (LC) (mp4a / 0x6134706D), 48000 Hz, mono,
 fltp, 69 kb/s
     Metadata:
       handler_name    : SoundHandle
       vendor_id       : [0][0][0][0]
       encoder         : Lavc60.31.102 aac
 [mov,mp4,m4a,3gp,3g2,mj2 @ 0x7f113c00aa40] Auto-inserting h264_mp4toannexb
 bitstream filterrop=8758 speed=6.01x
 [in#0/concat @ 0x564257de9a80] New (null) stream with index 2 at pos:48
 and DTS:1996.03s
 Impossible to convert between the formats supported by the filter
 'Parsed_scale_vaapi_2' and the filter 'auto_scale_1'
 [vf#0:0 @ 0x564257d3a340] Error reinitializing filters!
 Failed to inject frame into filter network: Function not implemented
 Error while filtering: Function not implemented
 [out#0/mp4 @ 0x564257d45640] video:5894436kB audio:17237kB subtitle:0kB
 other streams:0kB global headers:0kB muxing overhead: 0.025196%
 frame=49900 fps=150 q=-0.0 Lsize= 5913162kB time=00:33:16.65
 bitrate=24260.9kbits/s dup=11 drop=8770 speed=   6x
 [aac @ 0x564258c2ddc0] Qavg: 43.147
 Conversion failed!
 ```


  ffmpeg -hwaccel vaapi -hwaccel_output_format yuv420p -vaapi_device
 /dev/dri/renderD128 -f concat -safe 0 -i './vids.txt'   -vf
 'format=nv12,hwupload,scale_vaapi=1920:1080' -c:v hevc_vaapi -r 25
 -rc_mode CQP -global_quality 22 -threads 12 out_video.mp4
-- 
Ticket URL: <https://trac.ffmpeg.org/ticket/10915>
FFmpeg <https://ffmpeg.org>
FFmpeg issue tracker


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