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• FFmpeg Streaming Video SpringBoot endpoint not show video duration in video players

  7 avril 2024, par lxluxo23

  it turns out that I've been working on a personal project just out of curiosity.
the main function is to stream video by first encoding it through ffmpeg
then playback said video from any other device
call it "plex" very very primitive

  


  although I achieve my goal which is to encode and send the video to the devices that make the request
this video is sent so to speak as a live broadcast.
I can only pause it, no forward or rewind, anyone have any idea what I am doing wrong or if I should take some other approach either in my service or controller ?

  


  I leave fragments of my code

  


  THE CONTROLLER

  


  @RestController&#xA;@RequestMapping("/api")&#xA;@Log4j2&#xA;public class StreamController {&#xA;&#xA;    @Autowired&#xA;    VideoStreamingService videoStreamingService;&#xA;&#xA;    @Autowired&#xA;    VideoService videoService;&#xA;&#xA;&#xA;    @GetMapping("/stream/{videoId}")&#xA;    public ResponseEntity<streamingresponsebody> livestream(@PathVariable Long videoId,@RequestParam(required = false)  String codec) {&#xA;        Video video = videoService.findVideoById(videoId);&#xA;        if (video != null) {&#xA;            Codec codecEnum = Codec.fromString(codec);&#xA;            return ResponseEntity.ok()&#xA;                    .contentType(MediaType.valueOf("video/mp4"))&#xA;                    .body(outputStream -> videoStreamingService.streamVideo(video.getPath(), outputStream,codecEnum));&#xA;        }&#xA;        return ResponseEntity.notFound().build();&#xA;    }&#xA;}&#xA;</streamingresponsebody>

  


  THE SERVICE

  


  @Service
public class VideoStreamingService {

    public void streamVideo(String videoPath, OutputStream outputStream, Codec codec) {

        FFmpeg ffmpeg = FFmpeg.atPath()
                .addArguments("-i", videoPath)
                .addArguments("-b:v", "5000k")
                .addArguments("-maxrate", "5000k")
                .addArguments("-bufsize", "10000k")
                .addArguments("-c:a", "aac")
                .addArguments("-b:a", "320k")
                .addArguments("-movflags", "frag_keyframe+empty_moov+faststart")
                .addOutput(PipeOutput.pumpTo(outputStream)
                        .setFormat("mp4"))
                .addArgument("-nostdin");
        if (codec == Codec.AMD) {
            ffmpeg.addArguments("-profile:v", "high");
        }
        ffmpeg.addArguments("-c:v", codec.getFfmpegArgument());
        ffmpeg.execute();
    }
}


  


  I have some enums to vary the encoding and use hardware acceleration or not.

  


  and here is an example from my player
the endpoint is the following

  


  http://localhost:8080/api/stream/2?codec=AMD
screenshot

  


  I'm not sure if there's someone with more knowledge in either FFmpeg or Spring who could help me with this minor issue, I would greatly appreciate it. I've included the URL of the repository in case anyone would like to review it when answering my question

  


  repo

  


  I tried changing the encoding format.
I tried copying the metadata from the original video.
I tried sending a custom header.
None of this has worked.

  


  I would like to achieve what is mentioned in many sites, which is when you load a video from the network, the player shows how much of that video you have in the local "buffer".

  


• Discord music bot won't join Voice channel

  16 mars 2024, par Skely

  I followed a tutorial for creating a music bot in discord, but it will not join my vc no matter what. Every command works and it gives the correct responses and songs is in the queue. The bot have every permission know to man, but it still won't join. Any way to fix this issue ?
Thanks in advance !!

  


  This is my code and files

  


  main.py

  


  import discord
from discord.ext import commands
import os
import asyncio

from help_cog import help_cog
from music_cog import music_cog

bot = commands.Bot(
    command_prefix="?", 
    intents=discord.Intents.all(),
    help_command=None
)

async def main():
    async with bot:
        await bot.add_cog(help_cog(bot))
        await bot.add_cog(music_cog(bot))
        await bot.start(os.getenv("TOKEN"))

asyncio.run(main())


  


  music_cog.py

  


  import discord
from discord.ext import commands

from yt_dlp import YoutubeDL

import yt_dlp as youtube_dl

class music_cog(commands.Cog):
    def __init__(self, bot):
        self.bot = bot

        self.is_playing = False
        self.is_paused = False

        self.music_queue = []
        self.YDL_OPTIONS = {"format": "bestaudio", "postprocessors": [{"key": "FFmpegExtractAudio", "preferredcodec": "mp3", "preferredquality": "192",}]}
        self.FFMPEG_OPTIONS = {"before_options": "-reconnect 1 -reconnect_streamed 1 -reconnect_delay_max 5", "options": "-vn"}

        self.vc = None
        print("Success")

    def search_yt(self, item):
        with YoutubeDL(self.YDL_OPTIONS) as ydl:
            try:
                info = ydl.extract_info(f"ytsearch:{item}", download=False)["entries"][0]
            except Exception:
                return False
        return {"source": info["url"], "title": info["title"]}

    def play_next(self):
        if len(self.music_queue) > 0:
            self.is_playing = True

            m_url = self.music_queue[0][0]["source"]

            self.music_queue.pop(0)

            self.vc.play(discord.FFmpegPCMAudio(m_url, **self.FFMPEG_OPTIONS), after=lambda e: self.play_next())
        else:
            self.is_playing = False

    async def play_music(self, ctx):
        if len(self.music_queue) > 0:
            self.is_playing = True
            m_url = self.music_queue[0][0]["source"]

            if self.vc == None or not self.vc.is_connected():
                self.vc = await self.music_queue[0][1].connect()

                if self.vc == None:
                    await ctx.send("Could not connect to the voice channel")
                    return
            else:
                await self.vc.move_to(self.music_queue[0][1])
            
            self.music_queue.pop(0)

            self.vc.play(discord.FFmpegPCMAudio(m_url, **self.FFMPEG_OPTIONS), after=lambda e: self.play_next())

        else:
            self.is_playing = False

    @commands.command(name="play", aliases=["p", "playing"], help="Play the selected song from YouTube")
    async def play(self, ctx, *args):
        query = " ".join(args)

        voice_channel = ctx.author.voice.channel
        if voice_channel is None:
            await ctx.send("Connect to a voice channel!")
        elif self.is_paused:
            self.vc.resume()
        else:
            song = self.search_yt(query)
            if type(song) == type(True):
                await ctx.send("Could not download the song. Incorrect format, try a different keyword")
            else:
                await ctx.send("Song added to queue")
                self.music_queue.append([song, voice_channel])

                if self.is_playing == False:
                    await self.play_music(ctx)
    
    @commands.command(name="pause", help="Pauses the current song being played")
    async def pause(self, ctx, *args):
        if self.is_playing:
            self.is_playing = False
            self.is_paused = True
            self.vc.pause()
        elif self.is_paused:
            self.is_playing = True
            self.is_paused = False
            self.vc.resume()

    @commands.command(name="resume", aliases=["r"], help="Resumes playing the current song")
    async def resume(self, ctx, *args):
        if self.is_paused:
            self.is_playing = True
            self.is_paused = False
            self.vc.resume()
        
    @commands.command(name="skip", aliases=["s"], help="Skips the currently played song")
    async def skip(self, ctx, *args):
        if self.vc != None and self.vc:
            self.vc.stop()
            await self.play_music(ctx)

    @commands.command(name="queue", aliases=["q"], help="Displays all the songs currently in queue")
    async def queue(self, ctx):
        retval = ""

        for i in range(0, len(self.music_queue)):
            if i > 4: break
            retval += self.music_queue[i][0]["title"] + "\n"

        if retval != "":
            await ctx.send(retval)
        else:
            await ctx.send("No music in the current queue")
    
    @commands.command(name="clear", aliases=["c", "bin"], help="Stops the current song and clears the queue")
    async def clear(self, ctx, *args):
        if self.vc != None and self.is_playing:
            self.vc.stop()
        self.music_queue = []
        await ctx.send("Music queue cleared")

    @commands.command(name="leave", aliases=["disconnect", "l", "d"], help="Kick the bot from the voice channel")
    async def leave(self, ctx):
        self.is_playing = False
        self.is_paused = False
        await self.vc.disconnect()


  


  help_cog.py

  


  import discord
from discord.ext import commands

class help_cog(commands.Cog):
    def __init__(self, bot):
        self.bot = bot

        self.help_message = """
        Help message
"""

        self.text_channel_text = []
    
    @commands.Cog.listener()
    async def on_ready(self):
        for guild in self.bot.guilds:
            for channel in guild.text_channels:
                self.text_channel_text.append(channel)

        await self.send_to_all(self.help_message)

    async def send_to_all(self, msg):
        for text_channel in self.text_channel_text:
            await text_channel.send(msg)
        
    @commands.command(name="help", help="Displays all the available commands")
    async def help(self, ctx):
        await ctx.send(self.help_message)


  


• Error while linking shared library FFMpegJNI to android project

  5 mars 2024, par Dari V

  I have built an ffmpeg module for all the architectures, but when I try to build project to run it on emulator (x86 architecture) i get an error, indicating that the files for x86 architecture are incompatible with elf_i386. The same is for other architectures, i get the error that the files are incompatible. What can i do in this case ?

  


  [2/2] Linking CXX shared library E:\android_studio_projects\projects\IPTVPlayer\app\build\intermediates\cxx\Debug\1h3dp6s4\obj\x86\libffmpegJNI.so
FAILED: E:/android_studio_projects/projects/IPTVPlayer/app/build/intermediates/cxx/Debug/1h3dp6s4/obj/x86/libffmpegJNI.so 
cmd.exe /C "cd . && C:\Users\volos\AppData\Local\Android\Sdk\ndk\25.1.8937393\toolchains\llvm\prebuilt\windows-x86_64\bin\clang++.exe --target=i686-none-linux-android30 --sysroot=C:/Users/volos/AppData/Local/Android/Sdk/ndk/25.1.8937393/toolchains/llvm/prebuilt/windows-x86_64/sysroot -fPIC -g -DANDROID -fdata-sections -ffunction-sections -funwind-tables -fstack-protector-strong -no-canonical-prefixes -D_FORTIFY_SOURCE=2 -Wformat -Werror=format-security   -fno-limit-debug-info  -static-libstdc++ -Wl,--build-id=sha1 -Wl,--fatal-warnings -Wl,--gc-sections -Wl,--no-undefined -Qunused-arguments -shared -Wl,-soname,libffmpegJNI.so -o E:\android_studio_projects\projects\IPTVPlayer\app\build\intermediates\cxx\Debug\1h3dp6s4\obj\x86\libffmpegJNI.so CMakeFiles/ffmpegJNI.dir/E_/media3/media-release/libraries/decoder_ffmpeg/src/main/jni/ffmpeg_jni.cc.o  -landroid  E:/media3/media-release/libraries/decoder_ffmpeg/src/main/jni/ffmpeg/android-libs/x86/libswresample.a  E:/media3/media-release/libraries/decoder_ffmpeg/src/main/jni/ffmpeg/android-libs/x86/libavcodec.a  E:/media3/media-release/libraries/decoder_ffmpeg/src/main/jni/ffmpeg/android-libs/x86/libavutil.a  C:/Users/volos/AppData/Local/Android/Sdk/ndk/25.1.8937393/toolchains/llvm/prebuilt/windows-x86_64/sysroot/usr/lib/i686-linux-android/30/liblog.so  -latomic -lm && cd ."
ld: error: E:/media3/media-release/libraries/decoder_ffmpeg/src/main/jni/ffmpeg/android-libs/x86/libavcodec.a(mpegaudiotabs.o) is incompatible with elf_i386