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  • FFMPEG color key filter applied, output to a transparent HEVC mov file, speed is different

    2 mars 2023, par Patrick Vellia

    I have an original recording that has the following ffprobe output :

    


    Input #0, mov,mp4,m4a,3gp,3g2,mj2, from 'test.mp4':
  Metadata:
    major_brand     : mp41
    minor_version   : 538120216
    compatible_brands: mp41
    creation_time   : 2023-02-28T19:06:41.000000Z
    firmware        : H21.01.01.50.00
  Duration: 00:00:08.15, start: 0.000000, bitrate: 60160 kb/s
  Stream #0:0(eng): Video: hevc (Main) (hvc1 / 0x31637668), yuvj420p(pc, bt709), 3840x2160 [SAR 1:1 DAR 16:9], 59891 kb/s, 119.88 fps, 119.88 tbr, 120k tbn, 119.88 tbc (default)
    Metadata:
      creation_time   : 2023-02-28T19:06:41.000000Z
      handler_name    : GoPro H.265
      vendor_id       : [0][0][0][0]
      encoder         : GoPro H.265 encoder
      timecode        : 19:05:32:105
  Stream #0:1(eng): Audio: aac (LC) (mp4a / 0x6134706D), 48000 Hz, stereo, fltp, 189 kb/s (default)
    Metadata:
      creation_time   : 2023-02-28T19:06:41.000000Z
      handler_name    : GoPro AAC  
      vendor_id       : [0][0][0][0]
      timecode        : 19:05:32:105
  Stream #0:2(eng): Data: none (tmcd / 0x64636D74), 0 kb/s (default)
    Metadata:
      creation_time   : 2023-02-28T19:06:41.000000Z
      handler_name    : GoPro TCD  
      timecode        : 19:05:32:105
  Stream #0:3(eng): Data: bin_data (gpmd / 0x646D7067), 76 kb/s (default)
    Metadata:
      creation_time   : 2023-02-28T19:06:41.000000Z
      handler_name    : GoPro MET  
Unsupported codec with id 0 for input stream 2
Unsupported codec with id 100359 for input stream 3


    


    This video is chroma keyed, so I ran the following command the key out the green and export it to a HEVC mov container (the Apple HEVC supports alpha channel via the videotoolbox codec) :

    


    ffmpeg -i test.mp4 -vf colorkey=0x00b140:0.3:0.1 -vcodec hevc_videotoolbox -alpha_quality 0.5 -tag:v hvc1 output1.mov


    


    which results in this ffprobe :

    


    Input #0, mov,mp4,m4a,3gp,3g2,mj2, from 'output1.mov':
  Metadata:
    major_brand     : qt  
    minor_version   : 512
    compatible_brands: qt  
    encoder         : Lavf58.76.100
  Duration: 00:00:08.15, start: 0.000000, bitrate: 366946 kb/s
  Stream #0:0(eng): Video: hevc (Main) (hvc1 / 0x31637668), yuv420p(tv, gbr/bt709/bt709, progressive), 3840x2160 [SAR 1:1 DAR 16:9], 367188 kb/s, 119.88 fps, 119.88 tbr, 120k tbn, 120k tbc (default)
    Metadata:
      handler_name    : GoPro H.265
      vendor_id       : FFMP
      encoder         : Lavc58.134.100 hevc_videotoolbo
      timecode        : 19:05:32:105
  Stream #0:1(eng): Audio: aac (LC) (mp4a / 0x6134706D), 48000 Hz, stereo, fltp, 118 kb/s (default)
    Metadata:
      handler_name    : GoPro AAC  
      vendor_id       : [0][0][0][0]
  Stream #0:2(eng): Data: none (tmcd / 0x64636D74), 0 kb/s
    Metadata:
      handler_name    : GoPro H.265
      timecode        : 19:05:32:105
Unsupported codec with id 0 for input stream 2


    


    When the play the original video inside a web browser, it will play normally. As in, the video doesn't play in slo-mo but at "normal speed" which is what I actually want. User can slow it down and still have the frames necessary to keep the clarity when desired.

    


    However, when I play the second video, it is unnaturally slow even at 2x the speed.

    


    The only difference I can see above is that the export didn't include the second data stream (input 3).

    


    This was recorded on a GoPro Hero 10. I am using FFMPEG 4.6.

    


    Any help would be appreciated to fine tune the command.

    


  • concat two videos with same format

    24 mars 2023, par ttb

    I'm trying to concat two videos that have very similar formats :

    


    Stream #0:0[0x1](und): Video: hevc (Main 10) (hev1 / 0x31766568), yuv420p10le(tv), 1920x1080 [SAR 1:1 DAR 16:9], 1141 kb/s, 23.98 fps, 23.98 tbr, 24k tbn (default)
    Metadata:
      handler_name    : VideoHandler
      vendor_id       : [0][0][0][0]
  Stream #0:1[0x2](eng): Audio: aac (LC) (mp4a / 0x6134706D), 48000 Hz, 5.1, fltp, 224 kb/s (default)
    Metadata:
      handler_name    : SoundHandler
      vendor_id       : [0][0][0][0]


    


    and

    


      Stream #0:0(und): Video: hevc (hev1 / 0x31766568), yuv420p10le(tv, bt709, progressive), 1920x1080 [SAR 1:1 DAR 16:9], q=2-31, 23.98 fps, 24k tbn (default)
    Metadata:
      creation_time   : 2023-03-24T21:10:17.000000Z
      handler_name    : VideoHandler
      vendor_id       : [0][0][0][0]
      encoder         : Lavc60.6.101 libx265
    Side data:
      cpb: bitrate max/min/avg: 0/0/0 buffer size: 0 vbv_delay: N/A
  Stream #0:1(eng): Audio: aac (LC) (mp4a / 0x6134706D), 48000 Hz, 5.1, fltp, 341 kb/s (default)
    Metadata:
      creation_time   : 2023-03-24T21:10:17.000000Z
      handler_name    : Surround
      vendor_id       : [0][0][0][0]


    


    But the video ends up freezing when played. Not sure what's wrong, I matched everything ?

    


  • Discord FFMPEG audio wont play from yt-dlp

    19 mars 2023, par user21236822

    My question is this : Why isn't my bot playing audio ?

    


    I want the bot to join, play audio from queue, then disconnect without downloading an mp3 file.

    


    I tried using youtube-dl, but I switched to the yt-dlp library after getting errors I couldn't fix.
I am running on Windows 10 locally. All my libraries are up to date.

    


    Here are my ydl_opts and FFMPEG_OPTS :

    


    ydl_opts = {
    'format': 'bestaudio/best',
    'postprocessors': [{
        'key': 'FFmpegExtractAudio',
        'preferredcodec': 'mp3',
        'preferredquality': '192',
    }],
}

FFMPEG_OPTIONS = {
    'before_options': '-reconnect 1 -reconnect_streamed 1 -reconnect_delay_max 5',
    'options': '-vn'
} 


    


    Here is where I believe the problem is.

    


    async def play():
    print("Play Called")
    musicPlay()
    # Get message object from initial request
    message = ytLinkQue.get()
    print(f"Message object recieved: {message}")
    voiceChannel = message.author.voice.channel
    vc = await voiceChannel.connect()
    songsPlayed = 0
    
    while not ytLinkQue.empty():
        # Get current song
        currentSong = ytLinkQue.get()[0]
        print(f"Current song: {currentSong}")

        # Get song from Youtube
        with yt_dlp.YoutubeDL(ydl_opts) as ydl:
            # song = ydl.download(currentSong)
            info = ydl.extract_info(currentSong, download=False)
            song = info['formats'][0]['url']

        # Play Song
        vc.play(discord.FFmpegPCMAudio(song, **FFMPEG_OPTIONS), after=lambda e: print('Song done'))

        # Wait until the song has finished playing
        while vc.is_playing():
            print("playing rn")
            await asyncio.sleep(1)
    
    await vc.disconnect()
    musicStop()


    


    When play() is called, here is the output in terminal with my annotations as **** text **** :

    


    >python main.py&#xA;2023-02-17 15:21:09 INFO     discord.client logging in using static token&#xA;2023-02-17 15:21:10 INFO     discord.gateway Shard ID None has connected to Gateway (Session ID: 60b9fce14faa5daa4aed9eb6db01a74d).&#xA;Max que: 50&#xA;Text Channel: 828698708123451434&#xA;Testing Bot#4591 is ready.&#xA;Passing message object&#xA;**** play() funciton is called ****&#xA;Play Called&#xA;Message object recieved: <message channel="<TextChannel" position="7" nsfw="False" news="False"> type= author=<member discriminator="&#x27;0199&#x27;" bot="False" nick="&#x27;Fragnk7?&#x27;" guild="<Guild" chunked="True">> flags=<messageflags value="0">>&#xA;2023-02-17 15:21:16 INFO     discord.voice_client Connecting to voice...&#xA;2023-02-17 15:21:16 INFO     discord.voice_client Starting voice handshake... (connection attempt 1)&#xA;2023-02-17 15:21:17 INFO     discord.voice_client Voice handshake complete. Endpoint found seattle2004.discord.media&#xA;Current song: https://www.youtube.com/watch?v=vcAp4nmTZCA&#xA;[youtube] Extracting URL: https://www.youtube.com/watch?v=vcAp4nmTZCA &#xA;[youtube] vcAp4nmTZCA: Downloading webpage &#xA;[youtube] vcAp4nmTZCA: Downloading android player API JSON &#xA;**** Does not play any audio ****&#xA;Playing rn&#xA;Song done&#xA;2023-02-17 15:21:18 INFO     discord.player ffmpeg process 20700 successfully terminated with return code of 1.&#xA;2023-02-17 15:21:19 INFO     discord.voice_client The voice handshake is being terminated for Channel ID 400178308467392513 (Guild ID 261601676941721602)&#xA;2023-02-17 15:21:19 INFO     discord.voice_client Disconnecting from voice normally, close code 1000.&#xA;</messageflags></member></message>

    &#xA;

    On Discord's end, the bot successfully connects then disconnects after 2 second.

    &#xA;

    Note : I've only included code I think is relevant. Please let me know if I should add anything else to the post, otherwise, here is the github for the project. Code is in main.py.&#xA;https://github.com/LukeLeimbach/wallMomentMusic

    &#xA;

    Thank you in advance !

    &#xA;

    I've applied the advice from these posts but it still will not play audio :

    &#xA;

    -https://stackoverflow.com/questions/45770016/how-do-i-make-my-discord-bot-play-audio-from-youtube

    &#xA;

    -https://stackoverflow.com/questions/66070749/how-to-fix-discord-music-bot-that-stops-playing-before-the-song-is-actually-over?newreg=c70dd786cf5844e490045494223c0381

    &#xA;

    -https://stackoverflow.com/questions/57688808/playing-music-with-a-bot-from-youtube-without-downloading-the-file

    &#xA;

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