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Sur d’autres sites (10335)

  • FFmpegAudio object has no attribute _process

    28 janvier 2023, par Benjamin Tsoumagas

    I'm trying to make a Discord music bot that is remotely hosted and to do that I need ffmpeg to work. I was able to add it using my Dockerfile but upon trying to play music with the bot I get the following errors. For context, I am hosting on Fly.io and using python with the Nextcord library. Below is my relevant code and the error message. Please let me know if any more information is required.

    


    import nextcord, os, json, re, youtube_dl
from nextcord import Interaction, application_checks
from nextcord.ext import commands

youtube_dl.utils.bug_reports_message = lambda: ''

ytdl_format_options = {
    "format": "bestaudio/best",
    'outtmpl': '%(extractor)s-%(id)s-%(title)s.%(ext)s',
    'restrictfilenames': True,
    'noplaylist': True,
    'nocheckcertificate': True,
    'ignoreerrors': False,
    'logtostderr': False,
    'quiet': True,
    'no_warnings': True,
    'default_search': 'auto',
    'source_address': '0.0.0.0',
}

ffmpeg_options = {"options": "-vn"}

ytdl = youtube_dl.YoutubeDL(ytdl_format_options)

class YTDLSource(nextcord.PCMVolumeTransformer):
    def __init__(self, source, *, data, volume=0.5):
        super().__init__(source, volume)
        self.data = data
        self.title = data.get("title")
        self.url = data.get("url")

    @classmethod
    async def from_url(cls, url, *, loop=None, stream=False):
        loop = loop or asyncio.get_event_loop()
        data = await loop.run_in_executor(None, lambda: ytdl.extract_info(url, download=not stream))

        if "entries" in data:
            data = data["entries"][0]
        
        filename = data["url"] if stream else ytdl.prepare_filename(data)
        return cls(nextcord.FFmpegAudio(filename, *ffmpeg_options), data=data)

async def ensure_voice(interaction: Interaction):
    if interaction.guild.voice_client is None:
        if interaction.user.voice:
            await interaction.user.voice.channel.connect()
        else:
            await interaction.send("You are not connected to a voice channel.")
            raise commands.CommandError("Author not connected to a voice channel.")
    elif interaction.guild.voice_client.is_playing():
        interaction.guild.voice_client.stop()

class Music(commands.Cog, name="Music"):
    """Commands for playing music in voice channels"""

    COG_EMOJI = "🎵"

    def __init__(self, bot):
        self.bot = bot
    
    @application_checks.application_command_before_invoke(ensure_voice)
    @nextcord.slash_command()
    async def play(self, interaction: Interaction, *, query):
        """Plays a file from the local filesystem"""

        source = nextcord.PCMVolumeTransformer(nextcord.FFmpegPCMAudio(query))
        interaction.guild.voice_client.play(source, after=lambda e: print(f"Player error: {e}") if e else None)

        await interaction.send(f"Now playing: {query}")

    @application_checks.application_command_before_invoke(ensure_voice)
    @nextcord.slash_command()
    async def yt(self, interaction: Interaction, *, url):
        """Plays from a URL (almost anything youtube_dl supports)"""

        async with interaction.channel.typing():
            player = await YTDLSource.from_url(url, loop=self.bot.loop)
            interaction.guild.voice_client.play(
                player, after=lambda e: print(f"Player error: {e}") if e else None
            )

        await interaction.send(f"Now playing: {player.title}")

    @application_checks.application_command_before_invoke(ensure_voice)
    @nextcord.slash_command()
    async def stream(self, interaction: Interaction, *, url):
        """Streams from a URL (same as yt, but doesn't predownload)"""

        async with interaction.channel.typing():
            player = await YTDLSource.from_url(url, loop=self.bot.loop, stream=True)
            interaction.voice_client.play(
                player, after=lambda e: print(f"Player error: {e}") if e else None
            )

        await interaction.send(f"Now playing: {player.title}")

def setup(bot):
    bot.add_cog(Music(bot))


    


    2023-01-28T23:16:15Z app[7d3b734a] yyz [info]Exception ignored in: <function at="at" 0x7fa78ea61fc0="0x7fa78ea61fc0">&#xA;2023-01-28T23:16:15Z app[7d3b734a] yyz [info]Traceback (most recent call last):&#xA;2023-01-28T23:16:15Z app[7d3b734a] yyz [info]  File "/usr/local/lib/python3.10/site-packages/nextcord/player.py", line 116, in __del__&#xA;2023-01-28T23:16:15Z app[7d3b734a] yyz [info]    self.cleanup()&#xA;2023-01-28T23:16:15Z app[7d3b734a] yyz [info]  File "/usr/local/lib/python3.10/site-packages/nextcord/player.py", line 235, in cleanup&#xA;2023-01-28T23:16:15Z app[7d3b734a] yyz [info]    self._kill_process()&#xA;2023-01-28T23:16:15Z app[7d3b734a] yyz [info]  File "/usr/local/lib/python3.10/site-packages/nextcord/player.py", line 191, in _kill_process&#xA;2023-01-28T23:16:15Z app[7d3b734a] yyz [info]AttributeError: &#x27;FFmpegA&#xA;2023-01-28T23:16:15Z app[7d3b734a] yyz [info]AttributeError: &#x27;FFmpegA&#xA;dio&#x27; object has no attribute &#x27;_process&#x27;&#xA;2023-01-28T23:16:15Z app[7d3b734a] yyz [info]Ignoring exception in command :&#xA;2023-01-28T23:16:15Z app[7d3b734a] yyz [info]Traceback (most recent call last):&#xA;2023-01-28T23:16:15Z app[7d3b734a] yyz [info]  File "/usr/local/lib/python3.10/site-packages/nextcord/application_command.py", line 863, in invoke_callback_with_hooks&#xA;2023-01-28T23:16:15Z app[7d3b734a] yyz [info]    await self(interaction, *args, **kwargs)&#xA;2023-01-28T23:16:15Z app[7d3b734a] yyz [info]  File "/main/cogs/music.py", line 153, in yt&#xA;2023-01-28T23:16:15Z app[7d3b734a] yyz [info]    player = await YTDLSource.from_url(url, loop=self.bot.loop)&#xA;2023-01-28T23:16:15Z app[7d3b734a] yyz [info]  File "/main/cogs/music.py", line 71, in from_url    &#xA;2023-01-28T23:16:15Z app[7d3b734a] yyz [info]    return cls(nextcord.FFmpegAudio(filename, *ffmpeg_options), data=data)&#xA;2023-01-28T23:16:15Z app[7d3b734a] yyz [info]&#xA;The above exception was the direct cause of the following exception:&#xA;&#xA;re given&#xA;2023-01-28T23:16:15Z app[7d3b734a] yyz [info]The above exception was the direct cause of the following exception:&#xA;2023-01-28T23:16:15Z app[7d3b734a] yyz [info]nextcord.errors.ApplicationInvokeError: Command raised an exception: TypeError: FFmpegAudio.__init__() takes 2 positional arguments but 3 were given     &#xA;2023-01-28T23:16:19Z app[7d3b734a] yyz [info]Exception ignored in: <function at="at" 0x7fa78ea61fc0="0x7fa78ea61fc0">&#xA;2023-01-28T23:16:19Z app[7d3b734a] yyz [info]Traceback (most recent call last):&#xA;2023-01-28T23:16:19Z app[7d3b734a] yyz [info]  File "/usr/local/lib/python3.10/site-packages/nextcord/player.py", line 116, in __del__&#xA;2023-01-28T23:16:19Z app[7d3b734a] yyz [info]    self.cleanup()&#xA;2023-01-28T23:16:19Z app[7d3b734a] yyz [info]  File "/usr/local/lib/python3.10/site-packages/nextcord/player.py", line 235, in cleanup&#xA;2023-01-28T23:16:19Z app[7d3b734a] yyz [info]    self._kill_process()&#xA;2023-01-28T23:16:19Z app[7d3b734a] yyz [info]  File "/usr/local/lib/python3.10/site-packages/nextcord/player.py", line 191, in _kill_process&#xA;2023-01-28T23:16:19Z app[7d3b734a] yyz [info]    proc = self._process&#xA;2023-01-28T23:16:19Z app[7d3b734a] yyz [info]AttributeError: &#x27;FFmpegAudio&#x27; object has no attribute &#xA;&#x27;_process&#x27;&#xA;2023-01-28T23:16:19Z app[7d3b734a] yyz [info]Ignoring exception in command :&#xA;2023-01-28T23:16:19Z app[7d3b734a] yyz [info]Traceback (most recent call last):&#xA;2023-01-28T23:16:19Z app[7d3b734a] yyz [info]  File "/usr/local/lib/python3.10/site-packages/nextcord/application_command.py", line 863, in invoke_callback_with_hooks&#xA;2023-01-28T23:16:19Z app[7d3b734a] yyz [info]    await self(interaction, *args, **kwargs)&#xA;2023-01-28T23:16:19Z app[7d3b734a] yyz [info]  File "/main/cogs/music.py", line 153, in yt&#xA;2023-01-28T23:16:19Z app[7d3b734a] yyz [info]    player = await YTDLSource.from_url(url, loop=self.bot.loop)&#xA;2023-01-28T23:16:19Z app[7d3b734a] yyz [info]  File "/main/cogs/music.py", line 71, in from_url    &#xA;2023-01-28T23:16:19Z app[7d3b734a] yyz [info]    return cls(nextcord.FFmpegAudio(filename, *ffmpeg_options), data=data)&#xA;2023-01-28T23:16:19Z app[7d3b734a] yyz [info]TypeError: FFmpegAudio.__init__() takes 2 positional arguments but 3 were given&#xA;2023-01-28T23:16:19Z app[7d3b734a] yyz [info]The above exception was the direct cause of the following exception:&#xA;2023-01-28T23:16:19Z app[7d3b734a] yyz [info]nextcord.errors.ApplicationInvokeError: Command raised an exception: TypeError: FFmpegAudio.__init__() takes 2 positional arguments but 3 were given&#xA;</function></function>

    &#xA;

    Similar posts have been made but their issues were typos in changing 'option' : '-vn' to 'options' : '-vn'. I've combed through for any other errors but I can't find any. I was hoping to see I made a similar mistake, but this is the template I was following from the Nextcord developers and I had no luck :

    &#xA;

  • ffmpeg realtime bad quality variable fps cams inputs to constant framerate problem

    23 janvier 2023, par BloodMan
        ../ffmpeg/ffmpeg -err_detect ignore_err -nostdin -threads 0 -y -strict experimental -thread_queue_size 10M -max_delay 20M -rtbufsize 20M -fflags &#x2B;discardcorrupt \&#xA;        -i "${cam1}" -i "${cam2}" -i "${cam3}" -i "${cam4}" \&#xA;        -filter_complex " \&#xA;        nullsrc=size=3840x2160:rate=30 [main1]; \&#xA;        anullsrc=channel_layout=stereo:sample_rate=44100 [a]; \&#xA;        [0:v] scale=1920:1080 [overlay1]; \&#xA;        [1:v] scale=1920:1080 [overlay2]; \&#xA;        [2:v] scale=1920:1080 [overlay3]; \&#xA;        [3:v] scale=1920:1080 [overlay4]; \&#xA;        [main1][overlay1] overlay=0:0 [main2]; \&#xA;        [main2][overlay2] overlay=1920:0 [main3]; \&#xA;        [main3][overlay3] overlay=0:1080 [main4]; \&#xA;        [main4][overlay4] overlay=1920:1080 [v] " \&#xA;        -t 10 -r 30 -g 60 -map "[v]" -map "[a]" \&#xA;        -shortest -video_size 3840x2160 -pix_fmt yuv420p -vcodec libx264 -preset ultrafast -tune zerolatency -minrate 2M -maxrate 2M -bufsize 20M -c:a aac -b:a 96k -ac 2 -ar 48000 -copytb 1 \&#xA;        -f flv -y -fflags &#x2B;genpts rtmp://b.rtmp.youtube.com/live2/${key}?backup=1&#xA;

    &#xA;

    ffmpeg version N-109650-g9d5e66942c Copyright (c) 2000-2023 the FFmpeg developers&#xA;  built with gcc 10 (Debian 10.2.1-6)&#xA;  configuration: --prefix=/home/bloodman/ffmpeg --pkg-config-flags=--static --extra-cflags=&#x27;-I/home/bloodman/ffmpeg/include -march=native&#x27; --extra-ldflags=-L/home/bloodman/ffmpeg/lib --extra-libs=&#x27;-lpthread -lm&#x27; --bindir=/home/bloodman/ffmpeg --enable-gpl --enable-nonfree --enable-libx264 --enable-libfdk-aac --enable-libmp3lame --enable-libfreetype --enable-hardcoded-tables&#xA;  libavutil      57. 44.100 / 57. 44.100&#xA;  libavcodec     59. 56.100 / 59. 56.100&#xA;  libavformat    59. 35.100 / 59. 35.100&#xA;  libavdevice    59.  8.101 / 59.  8.101&#xA;  libavfilter     8. 54.100 /  8. 54.100&#xA;  libswscale      6.  8.112 /  6.  8.112&#xA;  libswresample   4.  9.100 /  4.  9.100&#xA;  libpostproc    56.  7.100 / 56.  7.100&#xA;[hls @ 0x56019db77780] Skip (&#x27;#EXT-X-VERSION:3&#x27;)&#xA;[hls @ 0x56019db77780] Opening &#x27;cams/stream1_113.ts&#x27; for reading&#xA;Input #0, hls, from &#x27;cams/stream1.m3u8&#x27;:&#xA;  Duration: N/A, start: 1122.341667, bitrate: N/A&#xA;  Program 0&#xA;    Metadata:&#xA;      variant_bitrate : 0&#xA;  Stream #0:0: Video: h264 (Baseline) ([27][0][0][0] / 0x001B), yuv420p, 2048x1536, 15 fps, 15 tbr, 90k tbn&#xA;    Metadata:&#xA;      variant_bitrate : 0&#xA;[hls @ 0x56019db9e980] Skip (&#x27;#EXT-X-VERSION:3&#x27;)&#xA;[hls @ 0x56019db9e980] Opening &#x27;cams/stream2_105.ts&#x27; for reading&#xA;Input #1, hls, from &#x27;cams/stream2.m3u8&#x27;:&#xA;  Duration: N/A, start: 1042.633000, bitrate: N/A&#xA;  Program 0&#xA;    Metadata:&#xA;      variant_bitrate : 0&#xA;  Stream #1:0: Video: h264 (Main) ([27][0][0][0] / 0x001B), yuvj420p(pc, bt709), 1920x1080 [SAR 1:1 DAR 16:9], 25 fps, 100 tbr, 90k tbn&#xA;    Metadata:&#xA;      variant_bitrate : 0&#xA;[hls @ 0x56019dccdbc0] Skip (&#x27;#EXT-X-VERSION:3&#x27;)&#xA;[hls @ 0x56019dccdbc0] Opening &#x27;cams/stream3_14.ts&#x27; for reading&#xA;Input #2, hls, from &#x27;cams/stream3.m3u8&#x27;:&#xA;  Duration: N/A, start: 132.469000, bitrate: N/A&#xA;  Program 0&#xA;    Metadata:&#xA;      variant_bitrate : 0&#xA;  Stream #2:0: Video: h264 (Main) ([27][0][0][0] / 0x001B), yuv420p, 2688x1520, 25 fps, 100 tbr, 90k tbn&#xA;    Metadata:&#xA;      variant_bitrate : 0&#xA;[hls @ 0x56019f0ec980] Skip (&#x27;#EXT-X-VERSION:3&#x27;)&#xA;[hls @ 0x56019f0ec980] Opening &#x27;cams/stream4_26.ts&#x27; for reading&#xA;Input #3, hls, from &#x27;cams/stream4.m3u8&#x27;:&#xA;  Duration: N/A, start: 253.389000, bitrate: N/A&#xA;  Program 0&#xA;    Metadata:&#xA;      variant_bitrate : 0&#xA;  Stream #3:0: Video: h264 (High) ([27][0][0][0] / 0x001B), yuvj420p(pc, bt709), 1920x1080, 90k tbr, 90k tbn&#xA;    Metadata:&#xA;      variant_bitrate : 0&#xA;Stream mapping:&#xA;  Stream #0:0 (h264) -> scale:default&#xA;  Stream #1:0 (h264) -> scale:default&#xA;  Stream #2:0 (h264) -> scale:default&#xA;  Stream #3:0 (h264) -> scale:default&#xA;  overlay:default -> Stream #0:0 (libx264)&#xA;  anullsrc:default -> Stream #0:1 (aac)&#xA;[hls @ 0x56019db77780] Opening &#x27;cams/stream1_114.ts&#x27; for reading&#xA;[hls @ 0x56019db77780] Opening &#x27;cams/stream1_115.ts&#x27; for reading&#xA;[swscaler @ 0x5601a2c78e40] deprecated pixel format used, make sure you did set range correctly&#xA;[swscaler @ 0x5601a332c940] deprecated pixel format used, make sure you did set range correctly&#xA;[swscaler @ 0x5601a2c78e40] deprecated pixel format used, make sure you did set range correctly&#xA;    Last message repeated 2 times&#xA;[swscaler @ 0x5601a332c940] deprecated pixel format used, make sure you did set range correctly&#xA;[swscaler @ 0x5601a361fc00] deprecated pixel format used, make sure you did set range correctly&#xA;    Last message repeated 1 times&#xA;[libx264 @ 0x56019e5212c0] using SAR=1/1&#xA;[libx264 @ 0x56019e5212c0] using cpu capabilities: MMX2 SSE2Fast SSSE3 SSE4.2&#xA;[libx264 @ 0x56019e5212c0] profile Constrained Baseline, level 5.1, 4:2:0, 8-bit&#xA;[libx264 @ 0x56019e5212c0] 264 - core 160 r3011 cde9a93 - H.264/MPEG-4 AVC codec - Copyleft 2003-2020 - http://www.videolan.org/x264.html - options: cabac=0 ref=1 deblock=0:0:0 analyse=0:0 me=dia subme=0 psy=1 psy_rd=1.00:0.00 mixed_ref=0 me_range=16 chroma_me=1 trellis=0 8x8dct=0 cqm=0 deadzone=21,11 fast_pskip=1 chroma_qp_offset=0 threads=8 lookahead_threads=8 sliced_threads=1 slices=8 nr=0 decimate=1 interlaced=0 bluray_compat=0 constrained_intra=0 bframes=0 weightp=0 keyint=60 keyint_min=6 scenecut=0 intra_refresh=0 rc_lookahead=0 rc=crf mbtree=0 crf=23.0 qcomp=0.60 qpmin=0 qpmax=69 qpstep=4 vbv_maxrate=2000 vbv_bufsize=20000 crf_max=0.0 nal_hrd=none filler=0 ip_ratio=1.40 aq=0&#xA;Output #0, flv, to &#x27;rtmp://b.rtmp.youtube.com/live2/XXXX-XXXX-XXXX-XXXX-XXXX?backup=1&#x27;:&#xA;  Metadata:&#xA;    encoder         : Lavf59.35.100&#xA;  Stream #0:0: Video: h264 ([7][0][0][0] / 0x0007), yuv420p(progressive), 3840x2160 [SAR 1:1 DAR 16:9], q=2-31, 30 fps, 1k tbn&#xA;    Metadata:&#xA;      encoder         : Lavc59.56.100 libx264&#xA;    Side data:&#xA;      cpb: bitrate max/min/avg: 2000000/0/0 buffer size: 20000000 vbv_delay: N/A&#xA;  Stream #0:1: Audio: aac (LC) ([10][0][0][0] / 0x000A), 48000 Hz, stereo, fltp, 96 kb/s&#xA;    Metadata:&#xA;      encoder         : Lavc59.56.100 aac&#xA;[hls @ 0x56019db77780] Skip (&#x27;#EXT-X-VERSION:3&#x27;)00:00:03.22 bitrate=7519.6kbits/s speed=0.359x&#xA;[hls @ 0x56019db77780] Opening &#x27;cams/stream1_116.ts&#x27; for reading&#xA;[hls @ 0x56019db77780] Skip (&#x27;#EXT-X-VERSION:3&#x27;)00:00:07.23 bitrate=4470.2kbits/s speed=0.383x&#xA;[hls @ 0x56019db77780] Opening &#x27;cams/stream1_117.ts&#x27; for reading&#xA;[hls @ 0x56019f0ec980] Skip (&#x27;#EXT-X-VERSION:3&#x27;)00:00:09.04 bitrate=3978.1kbits/s speed=0.384x&#xA;[hls @ 0x56019f0ec980] Opening &#x27;cams/stream4_27.ts&#x27; for reading&#xA;[hls @ 0x56019dccdbc0] Skip (&#x27;#EXT-X-VERSION:3&#x27;)&#xA;[hls @ 0x56019dccdbc0] Opening &#x27;cams/stream3_15.ts&#x27; for reading&#xA;[hls @ 0x56019db9e980] Skip (&#x27;#EXT-X-VERSION:3&#x27;)&#xA;[hls @ 0x56019db9e980] Opening &#x27;cams/stream2_106.ts&#x27; for reading&#xA;[flv @ 0x56019e639a00] Failed to update header with correct duration.811.6kbits/s speed=0.385x&#xA;[flv @ 0x56019e639a00] Failed to update header with correct filesize.&#xA;frame=  299 fps= 12 q=34.0 Lsize=    4622kB time=00:00:09.98 bitrate=3792.7kbits/s speed=0.386x&#xA;video:4603kB audio:3kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: 0.349536%&#xA;[libx264 @ 0x56019e5212c0] frame I:5     Avg QP:45.60  size:275880&#xA;[libx264 @ 0x56019e5212c0] frame P:294   Avg QP:38.77  size: 11340&#xA;[libx264 @ 0x56019e5212c0] mb I  I16..4: 100.0%  0.0%  0.0%&#xA;[libx264 @ 0x56019e5212c0] mb P  I16..4:  1.4%  0.0%  0.0%  P16..4:  4.7%  0.0%  0.0%  0.0%  0.0%    skip:93.9%&#xA;[libx264 @ 0x56019e5212c0] coded y,uvDC,uvAC intra: 16.2% 8.9% 1.2% inter: 1.8% 0.6% 0.0%&#xA;[libx264 @ 0x56019e5212c0] i16 v,h,dc,p: 64% 17% 15%  5%&#xA;[libx264 @ 0x56019e5212c0] i8c dc,h,v,p: 90%  6%  3%  1%&#xA;[libx264 @ 0x56019e5212c0] kb/s:3783.23&#xA;[aac @ 0x56019e63a700] Qavg: 65511.207&#xA;[hls @ 0x56019db77780] Skip (&#x27;#EXT-X-VERSION:3&#x27;)&#xA;[hls @ 0x56019db77780] Opening &#x27;cams/stream1_118.ts&#x27; for reading&#xA;

    &#xA;

    NOTES : sources are cams streamed first to hls/m3u8. -t 10 only for testing purposes.

    &#xA;

    The problem is variable output fps= 12 (sometimes 2, 5, 10, maybe 13) where I expect 30. Machine is 10 times greater (encode uses up to 5% cpu).

    &#xA;

    Im trying adding -re, -r 30, -r 15 to sources, convert sources via stream_filter (,fps=30), vsync (old versions of ffmpeg), wallclock time, etc. and reading stackoverflow of course. And... nothing.

    &#xA;

    Where is the problem ?

    &#xA;

  • ErrorCode 1 while merging 2 videos

    10 janvier 2023, par Stéphane de Luca

    I am trying to merge two videos but have an error code 1.

    &#xA;

    My command is as follows :

    &#xA;

      final command =&#xA;        &#x27;-y $commandPaths -filter_complex \&#x27;[0:0][1:0]concat=n=${paths.length}:v=1:a=0[out]\&#x27; -map \&#x27;[out]\&#x27; $outputPath&#x27;;&#xA;

    &#xA;

    I see the following error :

    &#xA;

    &#xA;

    I/flutter (17343) : Stream specifier ':0' in filtergraph description [0:0][1:0]concat=n=2:v=1:a=0[out] matches no streams.

    &#xA;

    &#xA;

    Not easy to understand what caused this as I am not familiar with the lib.

    &#xA;

    I saw in a so that someone had the issue caused by the tw videos not having the same size.

    &#xA;

    The logs are as follows :

    &#xA;

    I/flutter (17343): Duration: 2.9345&#xA;I/flutter (17343): /data/user/0/com.example.shokaze/cache/PXL_20230104_041034414.TS.mp4 exists?: true&#xA;I/flutter (17343): Duration: 3.0677&#xA;I/flutter (17343): /data/user/0/com.example.shokaze/cache/PXL_20230104_041054379.TS.mp4 exists?: true&#xA;I/flutter (17343): Output duration; 6.0022&#xA;&#xA;&#xA;I/flutter (17343): About to executing: -y -i /data/user/0/com.example.shokaze/cache/PXL_20230104_041034414.TS.mp4 -i /data/user/0/com.example.shokaze/cache/PXL_20230104_041054379.TS.mp4  -filter_complex &#x27;[0:0][1:0]concat=n=2:v=1:a=0[out]&#x27; -map &#x27;[out]&#x27; /data/user/0/com.example.shokaze/app_flutter/output.mp4&#xA;&#xA;&#xA;&#xA;I/flutter (17343): ffmpeg version n5.1.2&#xA;I/flutter (17343):  Copyright (c) 2000-2022 the FFmpeg developers&#xA;I/flutter (17343): &#xA;I/flutter (17343): &#xA;I/flutter (17343):   built with Android (7155654, based on r399163b1) clang version 11.0.5 (https://android.googlesource.com/toolchain/llvm-project 87f1315dfbea7c137aa2e6d362dbb457e388158d)&#xA;I/flutter (17343): &#xA;I/flutter (17343):   configuration: --cross-prefix=aarch64-linux-android- --sysroot=/files/android-sdk/ndk/22.1.7171670/toolchains/llvm/prebuilt/linux-x86_64/sysroot --prefix=/home/taner/Projects/ffmpeg-kit/prebuilt/android-arm64/ffmpeg --pkg-config=/usr/bin/pkg-config --enable-version3 --arch=aarch64 --cpu=armv8-a --target-os=android --enable-neon --enable-asm --enable-inline-asm --ar=aarch64-linux-android-ar --cc=aarch64-linux-android24-clang --cxx=aarch64-linux-android24-clang&#x2B;&#x2B; --ranlib=aarch64-linux-android-ranlib --strip=aarch64-linux-android-strip --nm=aarch64-linux-android-nm --extra-libs=&#x27;-L/home/taner/Projects/ffmpeg-kit/prebuilt/android-arm64/cpu-features/lib -lndk_compat&#x27; --disable-autodetect --enable-cross-compile --enable-pic --enable-jni --enable-optimizations --enable-swscale --disable-static --enable-shared --enable-pthreads --enable-v4l2-m2m --disable-outdev=fbdev --disable-indev=fbdev --enable-small --disable-xmm-clobber-test --disable-debug --enable-lto --disable-neon-clobber-test --disable-programs --disab&#xA;I/flutter (17343): &#xA;I/flutter (17343):   libavutil      57. 28.100 / 57. 28.100&#xA;I/flutter (17343): &#xA;I/flutter (17343):   libavcodec     59. 37.100 / 59. 37.100&#xA;I/flutter (17343): &#xA;I/flutter (17343):   libavformat    59. 27.100 / 59. 27.100&#xA;I/flutter (17343): &#xA;I/flutter (17343):   libavdevice    59.  7.100 / 59.  7.100&#xA;I/flutter (17343): &#xA;I/flutter (17343):   libavfilter     8. 44.100 /  8. 44.100&#xA;I/flutter (17343): &#xA;I/flutter (17343):   libswscale      6.  7.100 /  6.  7.100&#xA;I/flutter (17343): &#xA;I/flutter (17343):   libswresample   4.  7.100 /  4.  7.100&#xA;I/flutter (17343): &#xA;I/flutter (17343): Input #0, mov,mp4,m4a,3gp,3g2,mj2, from &#x27;/data/user/0/com.example.shokaze/cache/PXL_20230104_041034414.TS.mp4&#x27;:&#xA;I/flutter (17343): &#xA;I/flutter (17343):   Metadata:&#xA;I/flutter (17343): &#xA;I/flutter (17343):     major_brand     : &#xA;I/flutter (17343): isom&#xA;I/flutter (17343): &#xA;I/flutter (17343): &#xA;I/flutter (17343):     minor_version   : &#xA;I/flutter (17343): 131072&#xA;I/flutter (17343): &#xA;I/flutter (17343): &#xA;I/flutter (17343):     compatible_brands: &#xA;I/flutter (17343): isomiso2mp41&#xA;I/flutter (17343): &#xA;I/flutter (17343): &#xA;I/flutter (17343):     creation_time   : &#xA;I/flutter (17343): 2023-01-04T04:10:38.000000Z&#xA;I/flutter (17343): &#xA;I/flutter (17343): &#xA;I/flutter (17343):     location        : &#xA;I/flutter (17343): &#x2B;48.8638&#x2B;2.4376/&#xA;I/flutter (17343): &#xA;I/flutter (17343): &#xA;I/flutter (17343):     location-eng    : &#xA;I/flutter (17343): &#x2B;48.8638&#x2B;2.4376/&#xA;I/flutter (17343): &#xA;I/flutter (17343): &#xA;I/flutter (17343):     com.android.capture.fps: &#xA;I/flutter (17343): 30.000000&#xA;I/flutter (17343): &#xA;I/flutter (17343): &#xA;I/flutter (17343):   Duration: &#xA;I/flutter (17343): 00:00:02.93&#xA;I/flutter (17343): , start: &#xA;I/flutter (17343): 0.000000&#xA;I/flutter (17343): , bitrate: &#xA;I/flutter (17343): 19691 kb/s&#xA;I/flutter (17343): &#xA;I/flutter (17343): &#xA;I/flutter (17343):   Stream #0:0&#xA;I/flutter (17343): [0x1]&#xA;I/flutter (17343): (eng)&#xA;I/flutter (17343): : Data: none (mett / 0x7474656D), 53 kb/s&#xA;I/flutter (17343):  (default)&#xA;I/flutter (17343): &#xA;I/flutter (17343): &#xA;I/flutter (17343):     Metadata:&#xA;I/flutter (17343): &#xA;I/flutter (17343):       creation_time   : &#xA;I/flutter (17343): 2023-01-04T04:10:38.000000Z&#xA;I/flutter (17343): &#xA;I/flutter (17343): &#xA;I/flutter (17343):       handler_name    : &#xA;I/flutter (17343): MetaHandle&#xA;I/flutter (17343): &#xA;I/flutter (17343): &#xA;I/flutter (17343):   Stream #0:1&#xA;I/flutter (17343): [0x2]&#xA;I/flutter (17343): (eng)&#xA;I/flutter (17343): : Audio: aac (mp4a / 0x6134706D), 48000 Hz, stereo, fltp, 191 kb/s&#xA;I/flutter (17343):  (default)&#xA;I/flutter (17343): &#xA;I/flutter (17343): &#xA;I/flutter (17343):     Metadata:&#xA;I/flutter (17343): &#xA;I/flutter (17343):       creation_time   : &#xA;I/flutter (17343): 2023-01-04T04:10:38.000000Z&#xA;I/flutter (17343): &#xA;I/flutter (17343): &#xA;I/flutter (17343):       handler_name    : &#xA;I/flutter (17343): SoundHandle&#xA;I/flutter (17343): &#xA;I/flutter (17343): &#xA;I/flutter (17343):       vendor_id       : &#xA;I/flutter (17343): [0][0][0][0]&#xA;I/flutter (17343): &#xA;I/flutter (17343): &#xA;I/flutter (17343):   Stream #0:2&#xA;I/flutter (17343): [0x3]&#xA;I/flutter (17343): (eng)&#xA;I/flutter (17343): : Video: hevc (hvc1 / 0x31637668), yuvj420p(pc, bt709), 1920x1080, 19436 kb/s&#xA;I/flutter (17343): , SAR 1:1 DAR 16:9&#xA;I/flutter (17343): , &#xA;I/flutter (17343): 29.99 fps, &#xA;I/flutter (17343): 30 tbr, &#xA;I/flutter (17343): 90k tbn&#xA;I/flutter (17343):  (default)&#xA;I/flutter (17343): &#xA;I/flutter (17343): &#xA;I/flutter (17343):     Metadata:&#xA;I/flutter (17343): &#xA;I/flutter (17343):       creation_time   : &#xA;I/flutter (17343): 2023-01-04T04:10:38.000000Z&#xA;I/flutter (17343): &#xA;I/flutter (17343): &#xA;I/flutter (17343):       handler_name    : &#xA;I/flutter (17343): VideoHandle&#xA;I/flutter (17343): &#xA;I/flutter (17343): &#xA;I/flutter (17343):       vendor_id       : &#xA;I/flutter (17343): [0][0][0][0]&#xA;I/flutter (17343): &#xA;I/flutter (17343): &#xA;I/flutter (17343):   Stream #0:3&#xA;I/flutter (17343): [0x4]&#xA;I/flutter (17343): (eng)&#xA;I/flutter (17343): : Data: none (mett / 0x7474656D)&#xA;I/flutter (17343):  (default)&#xA;I/flutter (17343): &#xA;I/flutter (17343): &#xA;I/flutter (17343):     Metadata:&#xA;I/flutter (17343): &#xA;I/flutter (17343):       creation_time   : &#xA;I/flutter (17343): 2023-01-04T04:10:38.000000Z&#xA;I/flutter (17343): &#xA;I/flutter (17343): &#xA;I/flutter (17343):       handler_name    : &#xA;I/flutter (17343): MetaHandle&#xA;I/flutter (17343): &#xA;I/flutter (17343): &#xA;I/flutter (17343): Input #1, mov,mp4,m4a,3gp,3g2,mj2, from &#x27;/data/user/0/com.example.shokaze/cache/PXL_20230104_041054379.TS.mp4&#x27;:&#xA;I/flutter (17343): &#xA;I/flutter (17343):   Metadata:&#xA;I/flutter (17343): &#xA;I/flutter (17343):     major_brand     : &#xA;I/flutter (17343): isom&#xA;I/flutter (17343): &#xA;I/flutter (17343): &#xA;I/flutter (17343):     minor_version   : &#xA;I/flutter (17343): 131072&#xA;I/flutter (17343): &#xA;I/flutter (17343): &#xA;I/flutter (17343):     compatible_brands: &#xA;I/flutter (17343): isomiso2mp41&#xA;I/flutter (17343): &#xA;I/flutter (17343): &#xA;I/flutter (17343):     creation_time   : &#xA;I/flutter (17343): 2023-01-04T04:10:58.000000Z&#xA;I/flutter (17343): &#xA;I/flutter (17343): &#xA;I/flutter (17343):     location        : &#xA;I/flutter (17343): &#x2B;48.8638&#x2B;2.4376/&#xA;I/flutter (17343): &#xA;I/flutter (17343): &#xA;I/flutter (17343):     location-eng    : &#xA;I/flutter (17343): &#x2B;48.8638&#x2B;2.4376/&#xA;I/flutter (17343): &#xA;I/flutter (17343): &#xA;I/flutter (17343):     com.android.capture.fps: &#xA;I/flutter (17343): 30.000000&#xA;I/flutter (17343): &#xA;I/flutter (17343): &#xA;I/flutter (17343):   Duration: &#xA;I/flutter (17343): 00:00:03.07&#xA;I/flutter (17343): , start: &#xA;I/flutter (17343): 0.000000&#xA;I/flutter (17343): , bitrate: &#xA;I/flutter (17343): 20104 kb/s&#xA;I/flutter (17343): &#xA;I/flutter (17343): &#xA;I/flutter (17343):   Stream #1:0&#xA;I/flutter (17343): [0x1]&#xA;I/flutter (17343): (eng)&#xA;I/flutter (17343): : Data: none (mett / 0x7474656D), 54 kb/s&#xA;I/flutter (17343):  (default)&#xA;I/flutter (17343): &#xA;I/flutter (17343): &#xA;I/flutter (17343):     Metadata:&#xA;I/flutter (17343): &#xA;I/flutter (17343):       creation_time   : &#xA;I/flutter (17343): 2023-01-04T04:10:58.000000Z&#xA;I/flutter (17343): &#xA;I/flutter (17343): &#xA;I/flutter (17343):       handler_name    : &#xA;I/flutter (17343): MetaHandle&#xA;I/flutter (17343): &#xA;I/flutter (17343): &#xA;I/flutter (17343):   Stream #1:1&#xA;I/flutter (17343): [0x2]&#xA;I/flutter (17343): (eng)&#xA;I/flutter (17343): : Audio: aac (mp4a / 0x6134706D), 48000 Hz, stereo, fltp, 191 kb/s&#xA;I/flutter (17343):  (default)&#xA;I/flutter (17343): &#xA;I/flutter (17343): &#xA;I/flutter (17343):     Metadata:&#xA;I/flutter (17343): &#xA;I/flutter (17343):       creation_time   : &#xA;I/flutter (17343): 2023-01-04T04:10:58.000000Z&#xA;I/flutter (17343): &#xA;I/flutter (17343): &#xA;I/flutter (17343):       handler_name    : &#xA;I/flutter (17343): SoundHandle&#xA;I/flutter (17343): &#xA;I/flutter (17343): &#xA;I/flutter (17343):       vendor_id       : &#xA;I/flutter (17343): [0][0][0][0]&#xA;I/flutter (17343): &#xA;I/flutter (17343): &#xA;I/flutter (17343):   Stream #1:2&#xA;I/flutter (17343): [0x3]&#xA;I/flutter (17343): (eng)&#xA;I/flutter (17343): : Video: hevc (hvc1 / 0x31637668), yuvj420p(pc, bt709), 1920x1080, 19848 kb/s&#xA;I/flutter (17343): , SAR 1:1 DAR 16:9&#xA;I/flutter (17343): , &#xA;I/flutter (17343): 29.99 fps, &#xA;I/flutter (17343): 30 tbr, &#xA;I/flutter (17343): 90k tbn&#xA;I/flutter (17343):  (default)&#xA;I/flutter (17343): &#xA;I/flutter (17343): &#xA;I/flutter (17343):     Metadata:&#xA;I/flutter (17343): &#xA;I/flutter (17343):       creation_time   : &#xA;I/flutter (17343): 2023-01-04T04:10:58.000000Z&#xA;I/flutter (17343): &#xA;I/flutter (17343): &#xA;I/flutter (17343):       handler_name    : &#xA;I/flutter (17343): VideoHandle&#xA;I/flutter (17343): &#xA;I/flutter (17343): &#xA;I/flutter (17343):       vendor_id       : &#xA;I/flutter (17343): [0][0][0][0]&#xA;I/flutter (17343): &#xA;I/flutter (17343): &#xA;I/flutter (17343):     Side data:&#xA;I/flutter (17343): &#xA;I/flutter (17343):       &#xA;I/flutter (17343): displaymatrix: rotation of -90.00 degrees&#xA;I/flutter (17343): &#xA;I/flutter (17343): &#xA;I/flutter (17343):   Stream #1:3&#xA;I/flutter (17343): [0x4]&#xA;I/flutter (17343): (eng)&#xA;I/flutter (17343): : Data: none (mett / 0x7474656D)&#xA;I/flutter (17343):  (default)&#xA;I/flutter (17343): &#xA;I/flutter (17343): &#xA;I/flutter (17343):     Metadata:&#xA;I/flutter (17343): &#xA;I/flutter (17343):       creation_time   : &#xA;I/flutter (17343): 2023-01-04T04:10:58.000000Z&#xA;I/flutter (17343): &#xA;I/flutter (17343): &#xA;I/flutter (17343):       handler_name    : &#xA;I/flutter (17343): MetaHandle&#xA;I/flutter (17343): &#xA;I/flutter (17343): &#xA;I/flutter (17343): Stream specifier &#x27;:0&#x27; in filtergraph description [0:0][1:0]concat=n=2:v=1:a=0[out] matches no streams.&#xA;I/flutter (17343): &#xA;I/flutter (17343): executing: -y -i /data/user/0/com.example.shokaze/cache/PXL_20230104_041034414.TS.mp4 -i /data/user/0/com.example.shokaze/cache/PXL_20230104_041054379.TS.mp4  -filter_complex &#x27;[0:0][1:0]concat=n=2:v=1:a=0[out]&#x27; -map &#x27;[out]&#x27; /data/user/0/com.example.shokaze/app_flutter/output.mp4&#xA;I/flutter (17343): error 1&#xA;

    &#xA;

    Therefore I tried to add a resize in the command without success as follows :.

    &#xA;

        final command =&#xA;        &#x27;$commandPaths -filter_complex \&#x27;[0:v]scale=1920:1080[0:a] [1:v]scale=1920:1080[1:a] concat=n=${paths.length}:v=1:a=1[v][a]\&#x27; -map \&#x27;[v]\&#x27; -map \&#x27;[a]\&#x27; $outputPath&#x27;;&#xA;&#xA;

    &#xA;

    This time the logs say :

    &#xA;

    &#xA;

    I/flutter (17343) : [AVFilterGraph @ 0xb4000074ea6265f0] No output pad can be associated to link label '1:v'.

    &#xA;

    &#xA;

    The logs are as follows :

    &#xA;

    I/flutter (17343): Duration: 2.9345&#xA;I/flutter (17343): /data/user/0/com.example.shokaze/cache/PXL_20230104_041034414.TS.mp4 exists?: true&#xA;I/flutter (17343): Duration: 3.0677&#xA;I/flutter (17343): /data/user/0/com.example.shokaze/cache/PXL_20230104_041054379.TS.mp4 exists?: true&#xA;I/flutter (17343): Output duration; 6.0022&#xA;I/flutter (17343): About to executing: -i /data/user/0/com.example.shokaze/cache/PXL_20230104_041034414.TS.mp4 -i /data/user/0/com.example.shokaze/cache/PXL_20230104_041054379.TS.mp4  -filter_complex &#x27;[0:v]scale=1920:1080[0:a] [1:v]scale=1920:1080[1:a] concat=n=2:v=1:a=1[v][a]&#x27; -map &#x27;[v]&#x27; -map &#x27;[a]&#x27; /data/user/0/com.example.shokaze/app_flutter/output.mp4&#xA;I/flutter (17343): ffmpeg version n5.1.2&#xA;I/flutter (17343):  Copyright (c) 2000-2022 the FFmpeg developers&#xA;I/flutter (17343): &#xA;I/flutter (17343): &#xA;I/flutter (17343):   built with Android (7155654, based on r399163b1) clang version 11.0.5 (https://android.googlesource.com/toolchain/llvm-project 87f1315dfbea7c137aa2e6d362dbb457e388158d)&#xA;I/flutter (17343): &#xA;I/flutter (17343):   configuration: --cross-prefix=aarch64-linux-android- --sysroot=/files/android-sdk/ndk/22.1.7171670/toolchains/llvm/prebuilt/linux-x86_64/sysroot --prefix=/home/taner/Projects/ffmpeg-kit/prebuilt/android-arm64/ffmpeg --pkg-config=/usr/bin/pkg-config --enable-version3 --arch=aarch64 --cpu=armv8-a --target-os=android --enable-neon --enable-asm --enable-inline-asm --ar=aarch64-linux-android-ar --cc=aarch64-linux-android24-clang --cxx=aarch64-linux-android24-clang&#x2B;&#x2B; --ranlib=aarch64-linux-android-ranlib --strip=aarch64-linux-android-strip --nm=aarch64-linux-android-nm --extra-libs=&#x27;-L/home/taner/Projects/ffmpeg-kit/prebuilt/android-arm64/cpu-features/lib -lndk_compat&#x27; --disable-autodetect --enable-cross-compile --enable-pic --enable-jni --enable-optimizations --enable-swscale --disable-static --enable-shared --enable-pthreads --enable-v4l2-m2m --disable-outdev=fbdev --disable-indev=fbdev --enable-small --disable-xmm-clobber-test --disable-debug --enable-lto --disable-neon-clobber-test --disable-programs --disab&#xA;I/flutter (17343): &#xA;I/flutter (17343):   libavutil      57. 28.100 / 57. 28.100&#xA;I/flutter (17343): &#xA;I/flutter (17343):   libavcodec     59. 37.100 / 59. 37.100&#xA;I/flutter (17343): &#xA;I/flutter (17343):   libavformat    59. 27.100 / 59. 27.100&#xA;I/flutter (17343): &#xA;I/flutter (17343):   libavdevice    59.  7.100 / 59.  7.100&#xA;I/flutter (17343): &#xA;I/flutter (17343):   libavfilter     8. 44.100 /  8. 44.100&#xA;I/flutter (17343): &#xA;I/flutter (17343):   libswscale      6.  7.100 /  6.  7.100&#xA;I/flutter (17343): &#xA;I/flutter (17343):   libswresample   4.  7.100 /  4.  7.100&#xA;I/flutter (17343): &#xA;I/flutter (17343): Input #0, mov,mp4,m4a,3gp,3g2,mj2, from &#x27;/data/user/0/com.example.shokaze/cache/PXL_20230104_041034414.TS.mp4&#x27;:&#xA;I/flutter (17343): &#xA;I/flutter (17343):   Metadata:&#xA;I/flutter (17343): &#xA;I/flutter (17343):     major_brand     : &#xA;I/flutter (17343): isom&#xA;I/flutter (17343): &#xA;I/flutter (17343): &#xA;I/flutter (17343):     minor_version   : &#xA;I/flutter (17343): 131072&#xA;I/flutter (17343): &#xA;I/flutter (17343): &#xA;I/flutter (17343):     compatible_brands: &#xA;I/flutter (17343): isomiso2mp41&#xA;I/flutter (17343): &#xA;I/flutter (17343): &#xA;I/flutter (17343):     creation_time   : &#xA;I/flutter (17343): 2023-01-04T04:10:38.000000Z&#xA;I/flutter (17343): &#xA;I/flutter (17343): &#xA;I/flutter (17343):     location        : &#xA;I/flutter (17343): &#x2B;48.8638&#x2B;2.4376/&#xA;I/flutter (17343): &#xA;I/flutter (17343): &#xA;I/flutter (17343):     location-eng    : &#xA;I/flutter (17343): &#x2B;48.8638&#x2B;2.4376/&#xA;I/flutter (17343): &#xA;I/flutter (17343): &#xA;I/flutter (17343):     com.android.capture.fps: &#xA;I/flutter (17343): 30.000000&#xA;I/flutter (17343): &#xA;I/flutter (17343): &#xA;I/flutter (17343):   Duration: &#xA;I/flutter (17343): 00:00:02.93&#xA;I/flutter (17343): , start: &#xA;I/flutter (17343): 0.000000&#xA;I/flutter (17343): , bitrate: &#xA;I/flutter (17343): 19691 kb/s&#xA;I/flutter (17343): &#xA;I/flutter (17343): &#xA;I/flutter (17343):   Stream #0:0&#xA;I/flutter (17343): [0x1]&#xA;I/flutter (17343): (eng)&#xA;I/flutter (17343): : Data: none (mett / 0x7474656D), 53 kb/s&#xA;I/flutter (17343):  (default)&#xA;I/flutter (17343): &#xA;I/flutter (17343): &#xA;I/flutter (17343):     Metadata:&#xA;I/flutter (17343): &#xA;I/flutter (17343):       creation_time   : &#xA;I/flutter (17343): 2023-01-04T04:10:38.000000Z&#xA;I/flutter (17343): &#xA;I/flutter (17343): &#xA;I/flutter (17343):       handler_name    : &#xA;I/flutter (17343): MetaHandle&#xA;I/flutter (17343): &#xA;I/flutter (17343): &#xA;I/flutter (17343):   Stream #0:1&#xA;I/flutter (17343): [0x2]&#xA;I/flutter (17343): (eng)&#xA;I/flutter (17343): : Audio: aac (mp4a / 0x6134706D), 48000 Hz, stereo, fltp, 191 kb/s&#xA;I/flutter (17343):  (default)&#xA;I/flutter (17343): &#xA;I/flutter (17343): &#xA;I/flutter (17343):     Metadata:&#xA;I/flutter (17343): &#xA;I/flutter (17343):       creation_time   : &#xA;I/flutter (17343): 2023-01-04T04:10:38.000000Z&#xA;I/flutter (17343): &#xA;I/flutter (17343): &#xA;I/flutter (17343):       handler_name    : &#xA;I/flutter (17343): SoundHandle&#xA;I/flutter (17343): &#xA;I/flutter (17343): &#xA;I/flutter (17343):       vendor_id       : &#xA;I/flutter (17343): [0][0][0][0]&#xA;I/flutter (17343): &#xA;I/flutter (17343): &#xA;I/flutter (17343):   Stream #0:2&#xA;I/flutter (17343): [0x3]&#xA;I/flutter (17343): (eng)&#xA;I/flutter (17343): : Video: hevc (hvc1 / 0x31637668), yuvj420p(pc, bt709), 1920x1080, 19436 kb/s&#xA;I/flutter (17343): , SAR 1:1 DAR 16:9&#xA;I/flutter (17343): , &#xA;I/flutter (17343): 29.99 fps, &#xA;I/flutter (17343): 30 tbr, &#xA;I/flutter (17343): 90k tbn&#xA;I/flutter (17343):  (default)&#xA;I/flutter (17343): &#xA;I/flutter (17343): &#xA;I/flutter (17343):     Metadata:&#xA;I/flutter (17343): &#xA;I/flutter (17343):       creation_time   : &#xA;I/flutter (17343): 2023-01-04T04:10:38.000000Z&#xA;I/flutter (17343): &#xA;I/flutter (17343): &#xA;I/flutter (17343):       handler_name    : &#xA;I/flutter (17343): VideoHandle&#xA;I/flutter (17343): &#xA;I/flutter (17343): &#xA;I/flutter (17343):       vendor_id       : &#xA;I/flutter (17343): [0][0][0][0]&#xA;I/flutter (17343): &#xA;I/flutter (17343): &#xA;I/flutter (17343):   Stream #0:3&#xA;I/flutter (17343): [0x4]&#xA;I/flutter (17343): (eng)&#xA;I/flutter (17343): : Data: none (mett / 0x7474656D)&#xA;I/flutter (17343):  (default)&#xA;I/flutter (17343): &#xA;I/flutter (17343): &#xA;I/flutter (17343):     Metadata:&#xA;I/flutter (17343): &#xA;I/flutter (17343):       creation_time   : &#xA;I/flutter (17343): 2023-01-04T04:10:38.000000Z&#xA;I/flutter (17343): &#xA;I/flutter (17343): &#xA;I/flutter (17343):       handler_name    : &#xA;I/flutter (17343): MetaHandle&#xA;I/flutter (17343): &#xA;I/flutter (17343): &#xA;I/flutter (17343): Input #1, mov,mp4,m4a,3gp,3g2,mj2, from &#x27;/data/user/0/com.example.shokaze/cache/PXL_20230104_041054379.TS.mp4&#x27;:&#xA;I/flutter (17343): &#xA;I/flutter (17343):   Metadata:&#xA;I/flutter (17343): &#xA;I/flutter (17343):     major_brand     : &#xA;I/flutter (17343): isom&#xA;I/flutter (17343): &#xA;I/flutter (17343): &#xA;I/flutter (17343):     minor_version   : &#xA;I/flutter (17343): 131072&#xA;I/flutter (17343): &#xA;I/flutter (17343): &#xA;I/flutter (17343):     compatible_brands: &#xA;I/flutter (17343): isomiso2mp41&#xA;I/flutter (17343): &#xA;I/flutter (17343): &#xA;I/flutter (17343):     creation_time   : &#xA;I/flutter (17343): 2023-01-04T04:10:58.000000Z&#xA;I/flutter (17343): &#xA;I/flutter (17343): &#xA;I/flutter (17343):     location        : &#xA;I/flutter (17343): &#x2B;48.8638&#x2B;2.4376/&#xA;I/flutter (17343): &#xA;I/flutter (17343): &#xA;I/flutter (17343):     location-eng    : &#xA;I/flutter (17343): &#x2B;48.8638&#x2B;2.4376/&#xA;I/flutter (17343): &#xA;I/flutter (17343): &#xA;I/flutter (17343):     com.android.capture.fps: &#xA;I/flutter (17343): 30.000000&#xA;I/flutter (17343): &#xA;I/flutter (17343): &#xA;I/flutter (17343):   Duration: &#xA;I/flutter (17343): 00:00:03.07&#xA;I/flutter (17343): , start: &#xA;I/flutter (17343): 0.000000&#xA;I/flutter (17343): , bitrate: &#xA;I/flutter (17343): 20104 kb/s&#xA;I/flutter (17343): &#xA;I/flutter (17343): &#xA;I/flutter (17343):   Stream #1:0&#xA;I/flutter (17343): [0x1]&#xA;I/flutter (17343): (eng)&#xA;I/flutter (17343): : Data: none (mett / 0x7474656D), 54 kb/s&#xA;I/flutter (17343):  (default)&#xA;I/flutter (17343): &#xA;I/flutter (17343): &#xA;I/flutter (17343):     Metadata:&#xA;I/flutter (17343): &#xA;I/flutter (17343):       creation_time   : &#xA;I/flutter (17343): 2023-01-04T04:10:58.000000Z&#xA;I/flutter (17343): &#xA;I/flutter (17343): &#xA;I/flutter (17343):       handler_name    : &#xA;I/flutter (17343): MetaHandle&#xA;I/flutter (17343): &#xA;I/flutter (17343): &#xA;I/flutter (17343):   Stream #1:1&#xA;I/flutter (17343): [0x2]&#xA;I/flutter (17343): (eng)&#xA;I/flutter (17343): : Audio: aac (mp4a / 0x6134706D), 48000 Hz, stereo, fltp, 191 kb/s&#xA;I/flutter (17343):  (default)&#xA;I/flutter (17343): &#xA;I/flutter (17343): &#xA;I/flutter (17343):     Metadata:&#xA;I/flutter (17343): &#xA;I/flutter (17343):       creation_time   : &#xA;I/flutter (17343): 2023-01-04T04:10:58.000000Z&#xA;I/flutter (17343): &#xA;I/flutter (17343): &#xA;I/flutter (17343):       handler_name    : &#xA;I/flutter (17343): SoundHandle&#xA;I/flutter (17343): &#xA;I/flutter (17343): &#xA;I/flutter (17343):       vendor_id       : &#xA;I/flutter (17343): [0][0][0][0]&#xA;I/flutter (17343): &#xA;I/flutter (17343): &#xA;I/flutter (17343):   Stream #1:2&#xA;I/flutter (17343): [0x3]&#xA;I/flutter (17343): (eng)&#xA;I/flutter (17343): : Video: hevc (hvc1 / 0x31637668), yuvj420p(pc, bt709), 1920x1080, 19848 kb/s&#xA;I/flutter (17343): , SAR 1:1 DAR 16:9&#xA;I/flutter (17343): , &#xA;I/flutter (17343): 29.99 fps, &#xA;I/flutter (17343): 30 tbr, &#xA;I/flutter (17343): 90k tbn&#xA;I/flutter (17343):  (default)&#xA;I/flutter (17343): &#xA;I/flutter (17343): &#xA;I/flutter (17343):     Metadata:&#xA;I/flutter (17343): &#xA;I/flutter (17343):       creation_time   : &#xA;I/flutter (17343): 2023-01-04T04:10:58.000000Z&#xA;I/flutter (17343): &#xA;I/flutter (17343): &#xA;I/flutter (17343):       handler_name    : &#xA;I/flutter (17343): VideoHandle&#xA;I/flutter (17343): &#xA;I/flutter (17343): &#xA;I/flutter (17343):       vendor_id       : &#xA;I/flutter (17343): [0][0][0][0]&#xA;I/flutter (17343): &#xA;I/flutter (17343): &#xA;I/flutter (17343):     Side data:&#xA;I/flutter (17343): &#xA;I/flutter (17343):       &#xA;I/flutter (17343): displaymatrix: rotation of -90.00 degrees&#xA;I/flutter (17343): &#xA;I/flutter (17343): &#xA;I/flutter (17343):   Stream #1:3&#xA;I/flutter (17343): [0x4]&#xA;I/flutter (17343): (eng)&#xA;I/flutter (17343): : Data: none (mett / 0x7474656D)&#xA;I/flutter (17343):  (default)&#xA;I/flutter (17343): &#xA;I/flutter (17343): &#xA;I/flutter (17343):     Metadata:&#xA;I/flutter (17343): &#xA;I/flutter (17343):       creation_time   : &#xA;I/flutter (17343): 2023-01-04T04:10:58.000000Z&#xA;I/flutter (17343): &#xA;I/flutter (17343): &#xA;I/flutter (17343):       handler_name    : &#xA;I/flutter (17343): MetaHandle&#xA;I/flutter (17343): &#xA;I/flutter (17343): &#xA;I/flutter (17343): [AVFilterGraph @ 0xb4000074ea6265f0] No output pad can be associated to link label &#x27;1:v&#x27;.&#xA;I/flutter (17343): &#xA;I/flutter (17343): Error initializing complex filters.&#xA;I/flutter (17343): &#xA;I/flutter (17343): Invalid argument&#xA;I/flutter (17343): &#xA;I/flutter (17343): Conversion failed!&#xA;I/flutter (17343): &#xA;I/flutter (17343): executing: -i /data/user/0/com.example.shokaze/cache/PXL_20230104_041034414.TS.mp4 -i /data/user/0/com.example.shokaze/cache/PXL_20230104_041054379.TS.mp4  -filter_complex &#x27;[0:v]scale=1920:1080[0:a] [1:v]scale=1920:1080[1:a] concat=n=2:v=1:a=1[v][a]&#x27; -map &#x27;[v]&#x27; -map &#x27;[a]&#x27; /data/user/0/com.example.shokaze/app_flutter/output.mp4&#xA;I/flutter (17343): error 1&#xA;

    &#xA;