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• ffmpeg hardware encoding and/or decoding when using v360 and crop filters ? [closed]

  25 août 2024, par Eric

  I'm using ffmpeg to dewarp a fisheye camera. It works great but is doing 100% of the work on the CPU.

  


  ffmpeg \
  -hide_banner \
  -v error \
  -allowed_media_types video \
  -fflags nobuffer \
  -flags low_delay \
  -timeout 5000000 \
  -user_agent go2rtc/ffmpeg \
  -rtsp_flags prefer_tcp \
  -i my_camera_stream \
  -vf v360=fisheye:output=dfisheye:ih_fov=180:iv_fov=180:pitch=90,crop=in_w:in_h/2:0:in_h/2 \
  -c:v libx264 \
  -g 50 \
  -profile:v high \
  -level:v 4.1 \
  -preset:v superfast \
  -tune:v zerolatency \
  -pix_fmt:v yuv420p \
  -an \
  -user_agent ffmpeg/go2rtc \
  -rtsp_transport tcp \
  -f rtsp rtsp://127.0.0.1:8554/my_hash


  


  I'm trying to see if any of the decode / encode work can be offloaded to hardware via vaapi but not having much luck.

  


  My attempt at enabling hwaccel is failing

  


  ffmpeg \
  -hide_banner \
  -v error \
  -allowed_media_types video \
  -fflags nobuffer \
  -flags low_delay \
  -timeout 5000000 \
  -threads 2 \
  -hwaccel vaapi \
  -hwaccel_flags allow_profile_mismatch \
  -hwaccel_device /dev/dri/renderD128 \
  -hwaccel_output_format vaapi \
  -rtsp_flags prefer_tcp \
  -i rtsps://my_camera_stream \
  -vf v360=fisheye:output=dfisheye:ih_fov=180:iv_fov=180:pitch=90,crop=in_w:in_h/2:0:in_h/2:,scale_vaapi=in_w:in_h \
  -c:v h264_vaapi \
  -g 50 \
  -profile:v high \
  -level:v 4.1 \
  -preset:v superfast \
  -tune:v zerolatency \
  -pix_fmt:v yuv420p \
  -an \
  -user_agent ffmpeg/go2rtc \
  -rtsp_transport tcp \
  -f rtsp rtsp://127.0.0.1:8554/my_hash


  


  With an error stating :

  


  Impossible to convert between the formats supported by the filter 'Parsed_crop_1' and the filter 'auto_scale_0'
Error reinitializing filters!
Failed to inject frame into filter network: Function not implemented
Error while processing the decoded data for stream #0:0


  


  

  1. Is it even possible to make use of vaapi hardware support anywhere in the ffmpeg pipeline when using v360 and crop filters ?

  


  2. If so what am I doing wrong.

  


  


• avcodec/liblc3 : add encoding/decoding support of LC3 audio codec

  1er avril 2024, par Antoine Soulier via ffmpeg-devel

  avcodec/liblc3 : add encoding/decoding support of LC3 audio codec
  The LC3 audio codec is the default codec of Bluetooth LE audio.
  
  This is a wrapper over the liblc3 library (https://github.com/google/liblc3).
  Signed-off-by : Antoine Soulier <asoulier@google.com>
  

  • [DH] Changelog
  • [DH] configure
  • [DH] doc/encoders.texi
  • [DH] doc/general_contents.texi
  • [DH] libavcodec/Makefile
  • [DH] libavcodec/allcodecs.c
  • [DH] libavcodec/codec_desc.c
  • [DH] libavcodec/codec_id.h
  • [DH] libavcodec/liblc3dec.c
  • [DH] libavcodec/liblc3enc.c

• Video encoding and decoding by the player during online playback [closed]

  10 janvier 2024, par rahkarenovin

  I made a player to stream the video.

  


  I want to do 32-bit encoding on the video with the help of ffmpeg.
so that the video will only play in my player.

  


  The problems I have :

  


  


  1. I want to put my 32-bit password in the player, the player will check this password while playing the video, if the password is the same, the video will be played.

     


  


  2. I don't know how to decode the video with the below player.

     


  


  


  What code is needed ? What command can I use to decode the video ?

  


  My player code :

  


  <div class="grid">&#xA;    <main>&#xA;        <div>&#xA;            &#xA;            &#xA;        </div>&#xA;    </main>&#xA;</div>&#xA;&#xA;<code class="echappe-js">&lt;script&amp;#xA;    type=&quot;text/javascript&quot;&amp;#xA;    src=&quot;https://cdn.polyfill.io/v2/polyfill.min.js?features=es6,Array.prototype.includes,CustomEvent,Object.entries,Object.values,Math.trunc&quot;&amp;#xA;    crossorigin=&quot;anonymous&quot;&amp;#xA;&gt;&lt;/script&gt;&#xA;&#xA;&lt;script type=&quot;text/javascript&quot; src=&quot;https://cdn.plyr.io/3.5.2/plyr.js&quot;&gt;&lt;/script&gt;&#xA;&#xA;&lt;script type=&quot;text/javascript&quot; src=&quot;https://cdn.jsdelivr.net/npm/hls.js@latest&quot;&gt;&lt;/script&gt;&#xA;&#xA;&lt;script&gt;&amp;#xA;    const source = &amp;#x27;https://bitdash-a.akamaihd.net/content/sintel/hls/playlist.m3u8&amp;#x27;;&amp;#xA;    const player = new Plyr(&amp;#x27;#player&amp;#x27;);&amp;#xA;    var video = document.getElementById(&amp;#x27;player&amp;#x27;);&amp;#xA;    if(Hls.isSupported()) {&amp;#xA;       var hls = new Hls();&amp;#xA;       hls.loadSource(source);&amp;#xA;       hls.attachMedia(video);&amp;#xA;       hls.on(Hls.Events.MANIFEST_PARSED,function() {&amp;#xA;           video.play();&amp;#xA;        });&amp;#xA;    }else if (video.canPlayType(&amp;#x27;application/vnd.apple.mpegurl&amp;#x27;)) {&amp;#xA;       video.src = source;&amp;#xA;       video.addEventListener(&amp;#x27;loadedmetadata&amp;#x27;,function() {&amp;#xA;           video.play();&amp;#xA;        });&amp;#xA;    }&amp;#xA;&lt;/script&gt;&#xA;