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• How to convert some .avif images to video with ffmpeg ?

  15 mars 2023, par tousang

  I have some avif images in one dir.
How to convert some .avif images to video with ffmpeg ?

  


  by read ffmpeg doc, i run such cmd in shell :

  


  ffmpeg -framerate 10 -pattern_type glob -i *.avif -c:v libx264 -pix_fmt yuv420p out.mp4


  


  but only get some error :

  


  ffmpeg version N-109896-g156ca86569 Copyright (c) 2000-2023 the FFmpeg developers
  built with Apple clang version 14.0.0 (clang-1400.0.29.202)
  configuration: --prefix=/opt/homebrew/Cellar/ffmpeg/HEAD-156ca86_1 --enable-shared --cc=clang --host-cflags= --host-ldflags= --enable-gpl --enable-libaom --enable-libdav1d --enable-libmp3lame --enable-libopus --enable-libsnappy --enable-libtheora --enable-libvorbis --enable-libvpx --enable-libx264 --enable-libx265 --enable-libfontconfig --enable-libfreetype --enable-frei0r --enable-libass --enable-demuxer=dash --enable-opencl --enable-audiotoolbox --enable-videotoolbox --enable-neon --disable-htmlpages --enable-libfdk-aac --enable-libsvtav1 --enable-nonfree
  libavutil      58.  3.100 / 58.  3.100
  libavcodec     60.  4.100 / 60.  4.100
  libavformat    60.  4.100 / 60.  4.100
  libavdevice    60.  2.100 / 60.  2.100
  libavfilter     9.  4.100 /  9.  4.100
  libswscale      7.  2.100 /  7.  2.100
  libswresample   4. 11.100 /  4. 11.100
  libpostproc    57.  2.100 / 57.  2.100
Option framerate not found.


  


  then i del framerate in cmd , but still error :

  


  ➜  out git:(main) ✗ ffmpeg  -pattern_type glob -i *.avif -c:v libx264 -pix_fmt yuv420p out.mp4
ffmpeg version N-110014-ga6e9d01f88 Copyright (c) 2000-2023 the FFmpeg developers
  built with Apple clang version 14.0.0 (clang-1400.0.29.202)
  configuration: --prefix=/opt/homebrew/Cellar/ffmpeg/HEAD-a6e9d01 --enable-shared --cc=clang --host-cflags= --host-ldflags= --enable-gpl --enable-libaom --enable-libdav1d --enable-libmp3lame --enable-libopus --enable-libsnappy --enable-libtheora --enable-libvorbis --enable-libvpx --enable-libx264 --enable-libx265 --enable-libfontconfig --enable-libfreetype --enable-frei0r --enable-libass --enable-demuxer=dash --enable-opencl --enable-audiotoolbox --enable-videotoolbox --enable-neon --disable-htmlpages --enable-libfdk-aac --enable-libsvtav1 --enable-nonfree
  libavutil      58.  3.100 / 58.  3.100
  libavcodec     60.  6.101 / 60.  6.101
  libavformat    60.  4.100 / 60.  4.100
  libavdevice    60.  2.100 / 60.  2.100
  libavfilter     9.  4.100 /  9.  4.100
  libswscale      7.  2.100 /  7.  2.100
  libswresample   4. 11.100 /  4. 11.100
  libpostproc    57.  2.100 / 57.  2.100
Option pattern_type not found.


  


  my ffmpeg can convert png image to avif , i wonder if there have some ways to convert some avif images to a mp4 video.

  


  thanks.

  


• Discord Bot can't play audio from YouTube all of a sudden

  22 mars 2023, par Aidan Tweedy

  Last night my Discord bot stopped working out of the blue. The bot had been working perfectly for months until this point - no code changes occurred and it was running in a Docker container on my home server. Then last night, my !play <url></url> command stopped working. The bot would join the voice channel, but not actually play anything. Then it would need to be manually disconnected from the voice channel in order for it to do anything again. After the first play fails, and I try again I get this error message :

  


   [youtube] crOZk88eCcg: Downloading webpage
 [youtube] crOZk88eCcg: Downloading android player API JSON
 [youtube] Extracting URL: https://www.youtube.com/watch?v=crOZk88eCcg&ab_channel=0foofighter0
 [youtube] crOZk88eCcg: Downloading webpage
 [youtube] crOZk88eCcg: Downloading android player API JSON
 [2023-03-22 00:27:59] [ERROR   ] discord.ext.commands.bot: Ignoring exception in command play
 Traceback (most recent call last):
   File "/usr/local/lib/python3.10/dist-packages/discord/ext/commands/core.py", line 190, in wrapped
     ret = await coro(*args, **kwargs)
   File "/usr/src/app/./main.py", line 180, in play
     voice.play(player, after=lambda e: print(f'Player error: {e}') if e else None)
   File "/usr/local/lib/python3.10/dist-packages/discord/voice_client.py", line 600, in play
     raise ClientException('Not connected to voice.')
 discord.errors.ClientException: Not connected to voice.
 
 The above exception was the direct cause of the following exception:
 
 Traceback (most recent call last):
   File "/usr/local/lib/python3.10/dist-packages/discord/ext/commands/bot.py", line 1347, in invoke
     await ctx.command.invoke(ctx)
   File "/usr/local/lib/python3.10/dist-packages/discord/ext/commands/core.py", line 986, in invoke
     await injected(*ctx.args, **ctx.kwargs)  # type: ignore
   File "/usr/local/lib/python3.10/dist-packages/discord/ext/commands/core.py", line 199, in wrapped
     raise CommandInvokeError(exc) from exc
 discord.ext.commands.errors.CommandInvokeError: Command raised an exception: ClientException: Not connected to voice.
 [2023-03-22 00:27:59] [INFO    ] discord.player: ffmpeg process 12 has not terminated. Waiting to terminate...
 [2023-03-22 00:27:59] [INFO    ] discord.player: ffmpeg process 12 should have terminated with a return code of -9.


  


  My first instinct was that ffmpeg was borking somehow, since it has been difficult to get working in the past. However I'm not sure how ffmpeg could've stopped working, since the bot never went down between working and not working. That leads me to believe it could be a change on Youtube/Discord's side ?

  


  For context, here is a snippet of my !play code :

  


  @client.command(pass_context = True)
async def play(ctx):
    url = ctx.message.content.split("!play ",1)[1]
    voice = discord.utils.get(client.voice_clients)
    if (ctx.author.voice):
        if voice == None:
            channel = ctx.message.author.voice.channel
            voice = await channel.connect()

        # Youtube Magic
        ydl_opts = {
        'format': 'worstaudio/worst',
        'postprocessors': [{
            'key': 'FFmpegExtractAudio',
            'preferredcodec': 'mp3',
            'preferredquality': '192',
        }],
        }

        if "http" not in url:
            yt = YoutubeSearch(url, max_results=1).to_json()
            print(yt)
            yt_id = str(json.loads(yt)['videos'][0]['id'])
            yt_channel = str(json.loads(yt)['videos'][0]['channel']).strip().replace(" ", "")
            url = 'https://www.youtube.com/watch?v='+yt_id+"&ab_channel="+yt_channel

        with yt_dlp.YoutubeDL(ydl_opts) as ydl:
            song_info=ydl.extract_info(url, download=False)
        for file in os.listdir("./"):
            if file.endswith(".mp3"):
                os.rename(file, "song.mp3")

        voice.stop()

        embed_trk = discord.Embed(
                title="Now playing",
                color=ctx.author.color,
        )
        video_title = song_info.get('title', None)
        video_channel = song_info.get('uploader', None)
        embed_trk.add_field(name="Track title", value=video_title, inline=False)
        embed_trk.add_field(name="Channel", value=video_channel, inline=False)

        await ctx.send(embed=embed_trk)
        player = await YTDLSource.from_url(url, loop=client.loop, stream=True)
        voice.play(player, after=lambda e: print(f'Player error: {e}') if e else None)
        while voice.is_playing():
            await asyncio.sleep(1)
        
        await request_record(ctx, video_title)

    else:
        await ctx.send("You must be in a voice channel to run this command")


  


• How can I combine a screenshot and two video files with ffmpeg ?

  26 novembre 2023, par lukascbossert

  I have a folder with video files. Some are .mov, some are .mp4. As a first step I am converting the .mov-files into .mp4 with :

  


  while read mov; do
   mp4=$(echo "$mov"|sed -e 's|\.mov$|.mp4|i')
   if [ "$mov" == "$mp4" ]; then
     echo "Failed to generate unique MP4 filename for file $mov"
   fi
   ffmpeg -i "$mov" -c:v libx264 -f mp4 "$mp4"
 done < <(find . -type f -iname '*.mov')


  


  This works technically fine.

  


  As a second step I need to merge two video files : the first one is always the same (intro.mp4 with audio), the second file is the either converted .mov or the .mp4 from the folder (also with audio).
Additionally I need a screenshot of the first frame from the second video, which shall be the very first frame and visible for e.g. half a second (for e.g. youtube-shorts to differentiate the videos).

  


  I create the screenshot with

  


  ffmpeg -i ${fzbVideo} -ss 1 -vframes 1 ${cover}"_%01d.jpg"


  


  which works perfectly fine.

  


  As far as I could I followed the example shown here and the documentation of ffmpeg
and created a loop for all the videos and the steps of merge screenshot and videos :

  


  for fzbVideo in *.mp4; do
    # intro should be at the beginning of each video
    intro="intro/fzb-intro.mp4"
    # getting a cover imge
    cover="$(basename ${fzbVideo} .mp4)_cover"
    # naming the output file
    fzbVideoOutput="$(basename ${fzbVideo} .mp4)_output.mp4"
    #   create a cover image from the first frame of the video
    ffmpeg -i ${fzbVideo} -ss 1 -vframes 1 ${cover}"_%01d.jpg"
    # combine the cover image with the intro and the actual video file
    ffmpeg \
-loop 1 -framerate 1 -t 1 -i ${cover}"_1.jpg" \
-i ${intro} \
-i ${fzbVideo} \
-f lavfi -t 0.1 -i anullsrc=channel_layout=stereo:sample_rate=44100 \
-filter_complex '[0:v:0][0:a:0][1:v:0][1:a:0][2:a:0][2:a:0]concat=n=3:v=1:a=1' ${fzbVideoOutput}
done


  


  But this creates the error :

  


  Stream specifier ':a:0' in filtergraph description [0:v:0][0:a:0][1:v:0][1:a:0][2:a:0][2:a:0]concat=n=3:v=1:a=1 matches no streams.


  


  What do I need to change ?
Additionally, is there a way to combine the converstion from .mov to .mp4 also in the loop (if necessary) ?

  


  ---

  


  Edit : content from the CLI, in case this is important information :

  


  ffmpeg version 6.0 Copyright (c) 2000-2023 the FFmpeg developers
  built with Apple clang version 14.0.3 (clang-1403.0.22.14.1)
  configuration: --prefix=/opt/homebrew/Cellar/ffmpeg/6.0_1 --enable-shared --enable-pthreads --enable-version3 --cc=clang --host-cflags= --host-ldflags= --enable-ffplay --enable-gnutls --enable-gpl --enable-libaom --enable-libaribb24 --enable-libbluray --enable-libdav1d --enable-libmp3lame --enable-libopus --enable-librav1e --enable-librist --enable-librubberband --enable-libsnappy --enable-libsrt --enable-libsvtav1 --enable-libtesseract --enable-libtheora --enable-libvidstab --enable-libvmaf --enable-libvorbis --enable-libvpx --enable-libwebp --enable-libx264 --enable-libx265 --enable-libxml2 --enable-libxvid --enable-lzma --enable-libfontconfig --enable-libfreetype --enable-frei0r --enable-libass --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libopenjpeg --enable-libspeex --enable-libsoxr --enable-libzmq --enable-libzimg --disable-libjack --disable-indev=jack --enable-videotoolbox --enable-audiotoolbox --enable-neon
  libavutil      58.  2.100 / 58.  2.100
  libavcodec     60.  3.100 / 60.  3.100
  libavformat    60.  3.100 / 60.  3.100
  libavdevice    60.  1.100 / 60.  1.100
  libavfilter     9.  3.100 /  9.  3.100
  libswscale      7.  1.100 /  7.  1.100
  libswresample   4. 10.100 /  4. 10.100
  libpostproc    57.  1.100 / 57.  1.100
Input #0, image2, from 'IMG_5546_cover_1.jpg':
  Duration: 00:00:01.00, start: 0.000000, bitrate: 836 kb/s
  Stream #0:0: Video: mjpeg (Baseline), yuvj420p(pc, bt470bg/unknown/unknown), 1080x1920, 1 fps, 1 tbr, 1 tbn
Input #1, mov,mp4,m4a,3gp,3g2,mj2, from 'intro/fzb-intro.mp4':
  Metadata:
    major_brand     : mp42
    minor_version   : 1
    compatible_brands: isommp41mp42
    creation_time   : 2023-11-24T21:59:10.000000Z
  Duration: 00:00:00.83, start: 0.000000, bitrate: 1247 kb/s
  Stream #1:0[0x1](und): Video: h264 (High) (avc1 / 0x31637661), yuv420p(tv, bt709, progressive), 602x1070, 1191 kb/s, 30 fps, 30 tbr, 600 tbn (default)
    Metadata:
      creation_time   : 2023-11-24T21:59:10.000000Z
      handler_name    : Core Media Video
      vendor_id       : [0][0][0][0]
  Stream #1:1[0x2](und): Audio: aac (LC) (mp4a / 0x6134706D), 44100 Hz, mono, fltp, 38 kb/s (default)
    Metadata:
      creation_time   : 2023-11-24T21:59:10.000000Z
      handler_name    : Core Media Audio
      vendor_id       : [0][0][0][0]
Input #2, mov,mp4,m4a,3gp,3g2,mj2, from 'IMG_5546.mp4':
  Metadata:
    major_brand     : isom
    minor_version   : 512
    compatible_brands: isomiso2avc1mp41
    encoder         : Lavf60.3.100
  Duration: 00:00:28.37, start: 0.000000, bitrate: 3126 kb/s
  Stream #2:0[0x1](und): Video: h264 (High) (avc1 / 0x31637661), yuv420p(tv, bt709, progressive), 1080x1920, 2989 kb/s, 29.97 fps, 29.97 tbr, 30k tbn (default)
    Metadata:
      handler_name    : Core Media Video
      vendor_id       : [0][0][0][0]
      encoder         : Lavc60.3.100 libx264
  Stream #2:1[0x2](und): Audio: aac (LC) (mp4a / 0x6134706D), 44100 Hz, stereo, fltp, 128 kb/s (default)
    Metadata:
      handler_name    : Core Media Audio
      vendor_id       : [0][0][0][0]
Stream specifier ':a' in filtergraph description [0:v] [0:a] [1:v] [1:a] [2:v] [2:a] concat=n=3:v=1:a=1 [v] [a] matches no streams.