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• ffprobe to bitrate variable stopped working

  6 novembre 2023, par Bricktop

  I have a simple script to encode a video using the same bitrate as the original. I use ffprobe to fetch the bitrate like this :

  


  ffprobe "%file%" -v 0 -select_streams v:0 -show_entries stream=bit_rate -print_format compact=p=0:nokey=1 >%temp%\bitrate.txt


  


  However, while fixing a but in the script where I had an odd number of " marks, I suddenly ran into this problem with ffprobe :

  


  Argument ' -v 0 -select_streams v:0 -show_entries stream=bit_rate -print_format compact=p=0:nokey=1 >C:\Users\ADMINI~1\AppData\Local\Temp\bitrate.txt' provided as input filename, but 'D:\VIDEO\AMBIANCE\SCOPITONE\MUSIC TELEVISION\This Here - Calm - OFFICIAL VIDEO (1080p 25fps AV1-128kbit AAC).mp4' was already specified.


  


  I am trying to understand this, scanning insanely for yet another " or something in my code but can't figure it out. Here is the full code :

  


  :: write file to queue (first)
move /y "%~dpn0.txt" "%temp%\%~n0.tmp" >nul
echo "%~1" >"%~dpn0.txt"
type "%temp%\%~n0.tmp" >>"%~dpn0.txt"

:: desyncronize instances (todo: try support for adding 9 files at a time)
timeout /t %time:~9,1% /nobreak
:: if not first instance exit
tasklist /fi "imagename eq handbrakecli.exe" | find /i "handbrakecli" && exit
title Transcode

:: delegate queue
for /f "delims=" %%f in (%~dpn0.txt) do (
    set "name=%%~nf"
    set "file=%%~f"
    rem todo: if file has x264 or other video codec mentioned, change to x265
    set "code=%%~dpnf (x265 transcoded)%%~xf"
    call :transcode
)
echo all done!
exit /b

:transcode
title "%name%"
if not exist "%file%" echo %date% %time% source file missing %file% >>%~dpn0.log & goto cleanup
if exist "%code%" echo %date% %time% target file exists %file% >>%~dpn0.log & goto cleanup

:: determine appropriate bitrate (does not seem to work on .webm files, closing the script as a result)
%~dp0ffprobe "%file%" -v 0 -select_streams v:0 -show_entries stream=bit_rate -print_format compact=p=0:nokey=1 >%temp%\bitrate.txt
set /p bitrate=<%temp%\bitrate.txt
:: reduce to full kilobytes
set "bitrate=%bitrate:~0,-3%"
if not defined bitrate echo failed to fetch bitrate & echo %date% %time% no bitrate for %file% >>%~dpn0.log & exit /b
if %bitrate% gtr 7000 set bitrate=7000

:: transcode
%~dp0HandBrakeCLI -i "%file%" -o "%code%" --encoder x265_10bit --encoder-preset slow --encoder-profile main444-10 --vb %bitrate% --two-pass --turbo --audio 1-9 --aencoder copy --audio-copy-mask aac,ac3,mp2,mp3,opus --audio-fallback opus --ab 160 --drc 2.0

:: remove current file from queue, regardless
:cleanup
findstr /v /c:"%file%" "%~dpn0.txt" >"%temp%\%~n0.tmp"
move /y "%temp%\%~n0.tmp" "%~dpn0.txt"


  


  It appears that the set "file=%%~f" is the problem, somehow it shows up as set "file=D:\VIDEO\this video here.mp4" " where the last two characters " should not belong, and I don't know what to change to fix this.

  


  Every type of improvement to the script is very welcomed !

  


• "FFmpeg : Error not transitioning to the next song in Discord Bot's queue."

  1er avril 2024, par noober

  I have 3 modules, but I'm sure the error occurs within this module, and here is the entire code within that module :

  


  import asyncio
import discord
from discord import FFmpegOpusAudio, Embed
import os

async def handle_help(message):
    embed = discord.Embed(
        title="Danh sách lệnh cho Bé Mèo",
        description="Dưới đây là các lệnh mà chủ nhân có thể bắt Bé Mèo phục vụ:",
        color=discord.Color.blue()
    )
    embed.add_field(name="!play", value="Phát một bài hát từ YouTube.", inline=False)
    embed.add_field(name="!pause", value="Tạm dừng bài hát đang phát.", inline=False)
    embed.add_field(name="!resume", value="Tiếp tục bài hát đang bị tạm dừng.", inline=False)
    embed.add_field(name="!skip", value="Chuyển đến bài hát tiếp theo trong danh sách chờ.", inline=False)
    embed.add_field(name="!stop", value="Dừng phát nhạc và cho phép Bé Mèo đi ngủ tiếp.", inline=False)
    # Thêm các lệnh khác theo cùng mẫu trên
    await message.channel.send(embed=embed)

class Song:
    def __init__(self, title, player):
        self.title = title  # Lưu trữ tiêu đề bài hát ở đây
        self.player = player

# Thêm đối tượng Song vào hàng đợi
def add_song_to_queue(guild_id, queues, song):
    queues.setdefault(guild_id, []).append(song)

async def handle_list(message, queues):
    log_file_path = "C:\\Bot Music 2\\song_log.txt"
    if os.path.exists(log_file_path):
        with open(log_file_path, "r", encoding="utf-8") as f:
            song_list = f.readlines()

        if song_list:
            embed = discord.Embed(
                title="Danh sách bài hát",
                description="Danh sách các bài hát đã phát:",
                color=discord.Color.blue()
            )

            for i, song in enumerate(song_list, start=1):
                if i == 1:
                    song = "- Đang phát: " + song.strip()
                embed.add_field(name=f"Bài hát {i}", value=song, inline=False)

            await message.channel.send(embed=embed)
        else:
            await message.channel.send("Hiện không có dữ liệu trong file log.")
    else:
        await message.channel.send("File log không tồn tại.")

async def handle_commands(message, client, queues, voice_clients, yt_dl_options, ytdl, ffmpeg_options=None, guild_id=None, data=None):
    # Nếu không có ffmpeg_options, sử dụng các thiết lập mặc định
    if ffmpeg_options is None:
        ffmpeg_options = {
            'before_options': '-reconnect 1 -reconnect_streamed 1 -reconnect_delay_max 5',
            'options': '-vn -filter:a "volume=0.25"'
        }
    
    # Khởi tạo voice_client
    if guild_id is None:
        guild_id = message.guild.id

    if guild_id in voice_clients:
        voice_client = voice_clients[guild_id]
    else:
        voice_client = None

    # Xử lý lệnh !play
    if message.content.startswith("!play"):
        try:
            # Kiểm tra xem người gửi tin nhắn có đang ở trong kênh voice không
            voice_channel = message.author.voice.channel
            # Kiểm tra xem bot có đang ở trong kênh voice của guild không
            if voice_client and voice_client.is_connected():
                await voice_client.move_to(voice_channel)
            else:
                voice_client = await voice_channel.connect()
                voice_clients[guild_id] = voice_client
        except Exception as e:
            print(e)

        try:
            query = ' '.join(message.content.split()[1:])
            if query.startswith('http'):
                url = query
            else:
                query = 'ytsearch:' + query
                loop = asyncio.get_event_loop()
                data = await loop.run_in_executor(None, lambda: ytdl.extract_info(query, download=False))
                if not data:
                    raise ValueError("Không có dữ liệu trả về từ YouTube.")
                url = data['entries'][0]['url']

            player = FFmpegOpusAudio(url, **ffmpeg_options)
            # Lấy thông tin của bài hát mới đang được yêu cầu
            title = data['entries'][0]['title']
            duration = data['entries'][0]['duration']
            creator = data['entries'][0]['creator'] if 'creator' in data['entries'][0] else "Unknown"
            requester = message.author.nick if message.author.nick else message.author.name
                    
            # Tạo embed để thông báo thông tin bài hát mới
            embed = discord.Embed(
                title="Thông tin bài hát mới",
                description=f"**Bài hát:** *{title}*\n**Thời lượng:** *{duration}*\n**Tác giả:** *{creator}*\n**Người yêu cầu:** *{requester}*",
                color=discord.Color.green()
            )
            await message.channel.send(embed=embed)
            
            # Sau khi lấy thông tin của bài hát diễn ra, gọi hàm log_song_title với title của bài hát
            # Ví dụ:
            title = data['entries'][0]['title']
            await log_song_title(title)

            # Thêm vào danh sách chờ nếu có bài hát đang phát
            if voice_client.is_playing():
                queues.setdefault(guild_id, []).append(player)
            else:
                voice_client.play(player)
                
        except Exception as e:
            print(e)
            
    if message.content.startswith("!link"):
            try:
                voice_client = await message.author.voice.channel.connect()
                voice_clients[voice_client.guild.id] = voice_client
            except Exception as e:
                print(e)

            try:
                url = message.content.split()[1]

                loop = asyncio.get_event_loop()
                data = await loop.run_in_executor(None, lambda: ytdl.extract_info(url, download=False))

                song = data['url']
                player = discord.FFmpegOpusAudio(song, **ffmpeg_options)

                voice_clients[message.guild.id].play(player)
            except Exception as e:
                print(e)

    # Xử lý lệnh !queue
    elif message.content.startswith("!queue"):
        queue = queues.get(guild_id, [])
        if queue:
            await message.channel.send("Danh sách chờ:")
            for index, item in enumerate(queue, 1):
                await message.channel.send(f"{index}. {item.title}")
        else:
            await message.channel.send("Không có bài hát nào trong danh sách chờ.")

    # Xử lý lệnh !skip
    elif message.content.startswith("!skip"):
        try:
            if voice_client and voice_client.is_playing():
                voice_client.stop()
                await play_next_song(guild_id, queues, voice_client, skip=True)
                await remove_first_line_from_log()
        except Exception as e:
            print(e)

    # Xử lý các lệnh như !pause, !resume, !stop
    elif message.content.startswith("!pause"):
        try:
            if voice_client and voice_client.is_playing():
                voice_client.pause()
        except Exception as e:
            print(e)

    elif message.content.startswith("!resume"):
        try:
            if voice_client and not voice_client.is_playing():
                voice_client.resume()
        except Exception as e:
            print(e)

    elif message.content.startswith("!stop"):
        try:
            if voice_client:
                voice_client.stop()
                await voice_client.disconnect()
                del voice_clients[guild_id]  # Xóa voice_client sau khi dừng
        except Exception as e:
            print(e)

async def log_song_title(title):
    log_file_path = "C:\\Bot Music 2\\song_log.txt"
    try:
        # Kiểm tra xem tệp tin log đã tồn tại chưa
        if not os.path.exists(log_file_path):
            # Nếu chưa tồn tại, tạo tệp tin mới và ghi title vào tệp tin đó
            with open(log_file_path, 'w', encoding='utf-8') as file:
                file.write(title + '\n')
        else:
            # Nếu tệp tin log đã tồn tại, mở tệp tin và chèn title vào cuối tệp tin
            with open(log_file_path, 'a', encoding='utf-8') as file:
                file.write(title + '\n')
    except Exception as e:
        print(f"Error logging song title: {e}")

async def remove_first_line_from_log():
    log_file_path = "C:\\Bot Music 2\\song_log.txt"
    try:
        with open(log_file_path, "r", encoding="utf-8") as f:
            lines = f.readlines()
        # Xóa dòng đầu tiên trong list lines
        lines = lines[1:]
        with open(log_file_path, "w", encoding="utf-8") as f:
            for line in lines:
                f.write(line)
    except Exception as e:
        print(f"Error removing first line from log: {e}")
        
async def clear_log_file():
    log_file_path = "C:\\Bot Music 2\\song_log.txt"
    try:
        with open(log_file_path, "w", encoding="utf-8") as f:
            f.truncate(0)
    except Exception as e:
        print(f"Error clearing log file: {e}")


async def play_next_song(guild_id, queues, voice_client, skip=False):
    queue = queues.get(guild_id, [])
    if queue:
        player = queue.pop(0)
        voice_client.play(player, after=lambda e: asyncio.run_coroutine_threadsafe(play_next_song(guild_id, queues, voice_client, skip=False), voice_client.loop))
        if skip:
            return
        else:
            await remove_first_line_from_log()  # Xóa dòng đầu tiên trong file log
    elif skip:
        await remove_first_line_from_log()  # Xóa dòng đầu tiên trong file log
        await voice_client.disconnect()
        del voice_client[guild_id]  # Xóa voice_client sau khi dừng
    else:
        await clear_log_file()  # Xóa dòng đầu tiên trong file log
        await voice_client.disconnect()
        del voice_client[guild_id]  # Xóa voice_client sau khi dừng


  


  I have tried asking ChatGPT, Gemini, or Bing, and they always lead me into a loop of errors that cannot be resolved. This error only occurs when the song naturally finishes playing due to its duration. If the song is playing and I use the command !skip, the next song in the queue will play and function normally. I noticed that it seems like if a song ends naturally, the song queue is also cleared immediately. I hope someone can help me with this

  


• FFmpeg playable MP4 segmented video from RTSP

  5 février 2021, par Michael Novotný

  I have problem with creating playable uncomplete MP4 file created from FFMPEG. In my case I have some infinite RTSP stream (h.264) from IP camera.
My target is record this stream to MP4 files for playback. If i use FFMPEG mp4 muxer, work correctly.

  


  /usr/bin/ffmpeg -progress pipe:5 -use_wallclock_as_timestamps 1 -analyzeduration 10000000 -probesize 10000000 -fflags +igndts -rtsp_transport tcp -hwaccel auto -loglevel warning -i rtsp://****:****@*******:****/ -y -an -vcodec copy -strict experimental -movflags frag_keyframe+empty_moov -f segment -segment_format mp4 -segment_format_options movflags=+faststart -segment_atclocktime 1 -reset_timestamps 1 -strftime 1 -segment_time 15 /Shinobi/videos/bWkwjTWdRt/Rm67cYyq50/test-%S.mp4


  


  FFMPEG will create one MP4 file which still increasing its size. If I try copy or simply open this (uncomplete, still increased ... of course :) ) file, it's correcly play. But it's still only one file ... still bigger and bigger. For long-term recording cam (few weeks) it's not good.
I want segment this stream to multiple smaller MP4 files (as you knows from another typical NVR systems). For example : segment for 30minutes.
I used "segment" muxer.

  


  /usr/bin/ffmpeg -progress pipe:5 -use_wallclock_as_timestamps 1 -analyzeduration 10000000 -probesize 10000000 -fflags +igndts -rtsp_transport tcp -hwaccel auto -loglevel warning -i rtsp://*****:****@*********:****/ -y -an -vcodec copy -strict -2 -movflags frag_keyframe+empty_moov -f mp4 -segment_atclocktime 1 -reset_timestamps 1 -strftime 1 -segment_list pipe:8 -segment_time 15 /Shinobi/videos/bWkwjTWdRt/Rm67cYyq50/test-%S.mp4


  


  It looks like work correctly. New file with defined mask is created every 30 minutes. If I try copy or simply open(and play) anyone "completed 30min segment file" it"s works correctly. Problem is with last file (more precisely : newest, still uncompleted last segment file) - it's not playable (moov atom not found).

  


  I Googled my problem many time with another keywords. I was try many my wonders. I readed FFMPEG documentation maybe 5times.

  


  Problem is with second passthroug which "segment muxer" do (which do -movflags +faststart .. for example). It's logicaly, second passthroug not be did in last(newest) file yet.

  


  Is there way to make it work ? If I want see time for 2-3 mins ago it's no possible wait up to 30minutes for "complete segment" ... and at the same time it is not possible to have a billion files with 2-3sec segments.
How did other NVR systems solve this ? Synology, Hikvision and more has in their file system recorded MP4 soubory which one of them is still uncompleted, still growing, but normaly PLAYABLE.

  


  A few last days I tried this with no success. I'am absolutely angry and sad. I hope that my text is understandable

  


  Thank you

  


  This options has no effect in my case (tried) :

  


  -movflags frag_keyframe+empty_moov

  


  -movflags faststart

  


  -movflags separate_moof

  


  -fragsize *** / -fragtime ***

  


  -strict -2 / -strict experimental