{"id":10355,"date":"2021-09-06T22:57:14","date_gmt":"2021-09-06T20:57:14","guid":{"rendered":"https:\/\/pythonprogramming.altervista.org\/?p=10355"},"modified":"2021-09-06T23:01:19","modified_gmt":"2021-09-06T21:01:19","slug":"how-to-record-the-screen-with-ffmpeg-and-python","status":"publish","type":"post","link":"https:\/\/pythonprogramming.altervista.org\/how-to-record-the-screen-with-ffmpeg-and-python\/","title":{"rendered":"How to record the screen with ffmpeg and python"},"content":{"rendered":"\n

This is what I use to record the screen. It’s free, fast, lightweight. You got to adapt it to your pc’s devices. Maybe it can help you if you want to do the same thing. You have to install ffmpef.<\/p>\n\n\n\n

Github: https:\/\/github.com\/formazione\/screenrec<\/a><\/p>\n\n\n\n

\"\"<\/a><\/figure><\/div>\n\n\n\n
import os\nimport glob\nimport tkinter as tk\n# from sounddevice import query_devices\n\n\nx = 0\n\ndef ask():\n    file_root = \"G:\\\\video\\\\\"\n    filename = input(\"Nome del file: \")\n    filepath = file_root + filename + \".mp4\"\n    return filepath, file_root\n\ndef automatic_name():\n    \"Crea il nome da solo \/ ora chiedo il nome del file prima\"\n    global x\n\n    fld = \"G:\\\\video\"\n    if not fld + str(x) + \".mp4\" in glob.glob(fld + \"*.mp4\"):\n        filename = fld + str(x) + \".mp4\"\n    else:\n        x += 1\n        record()\n    filename = fld + filename + \".mp4\"\n    return filename\n\n\ndef get_mic_name():\n    \"Uses sounddevice to get the name of the mic in case it changed\"\n    s = query_devices()\n    audio = f\"\"\"{s[1][\"name\"]})\"\"\"\n    return audio\n\n\ndef radiobutton(root, rbvar, text):\n    global radio_cnt\n\n    radio_cnt +=1\n    rb = tk.Radiobutton(\n        root,\n        text=text,\n        variable=rbvar,\n        value=radio_cnt)\n    rb.pack()\n    return rb\n\n\ndef label(root, text):\n    ck1 = tk.Label(root, text=text)\n    ck1.pack()\n    return ck1\n\n\ndef print_me():\n    print(\"Destroyed\")\n\nradio_cnt = 0\ndef window():\n\n    root = tk.Tk()\n    lab = label(root, \"Microfono\")\n    mic = tk.IntVar()\n    ck1 = radiobutton(root, mic, \"Cuffia\")\n    ck2 = radiobutton(root, mic, \"PC\")\n    ck3 = radiobutton(root, mic, \"trust mic\")\n    mic.set(3)\n    # video res\n    lab2 = label(root, \"Video resolution\")\n    video = tk.IntVar()\n    ck3 = radiobutton(root, video, \"Benq monitor\")\n    ck4 = radiobutton(root, video, \"Acer laptop\")\n    video.set(4)\n\n    # so you can just press enter to start recording\n    start = tk.Button(root, text=\"SPACE TO START\", command=root.destroy)\n    start.pack()\n    start.focus()\n\n    root.mainloop()\n    print(mic.get())\n    print(video.get())\n    # root.bind(\"<Escape>\", print_me)\n    return root, mic.get(), video.get()\n\n\ndef record(filename, mic, video):\n    # audio = \"Microfono (Logitech USB Headset)\"\n    # audio = \"Stereo Mix (Realtek High Definition Audio(SST))\"\n    # audio = input(\"Audio 1 (microfono pc) 2 (microfono cuffie)\")\n    if mic == 1:\n        audio = \"Microfono (6- Logitech USB Headset)\"\n    elif mic == 2:\n        audio = \"Gruppo microfoni (Realtek High Definition Audio(SST))\"\n\n    elif mic == 3:\n    \taudio = \"Microfono (USB PnP Sound Device)\"\n    # audio = \"Cuffia auricolare (MAJOR II BLUETOOTH Hands-Free AG Audio)\"\n    print(f\"Using {audio}\")\n    i = f\"-i audio=\\\"{audio}\\\"\"\n    # video_size = \"1366x768\"\n    if video == 4:\n        video_size = \"1680x1050\" # monitor\n    elif video == 5:\n        video_size = \"1920x1080\" # computer laptop\n    \n    # added a compressor 15\/03\/2020\n    # Capture both screens\n    # i = f\"-i video=\\\"UScreenCapture\\\":audio=\\\"{audio}\\\"\"\n    #Capture one screen\n    #screen = \"UScreenCapture\"\n    #screen = \"gdigrab\"\n    screen = \"UScreenCapture\"\n\n    compressor = \"-af acompressor=threshold=0.011623:ratio=9:attack=200:release=1000\"\n    # compressor = \"-af acompressor=threshold=0.011623:ratio=9:attack=200:release=1000:detection=0:makeup=10^^(7.7\/20)\"\n    # compressor = \"-af acompressor=threshold=0.089:ratio=9:attack=200:release=1000\"\n    # compressor = \"-af acompressor=threshold=0.031623:ratio=9:attack=200:release=1000\"\n    # compressor = \"-af acompressor=threshold=10^^(-30\/20):ratio=9:attack=200:release=1000\"\n    # compressor = \"-af acompressor=threshold=0:ratio=9:attack=200:release=1000\"\n    # attenuate 10db at 1000 Hz\n    # equalizer = \"-af \\\"equalizer=f=1000:width_type=h:width=200:g=-10\\\"\"\n    # Apply 2 dB gain at 1000 Hz with Q 1 and attenuate 5 dB at 100 Hz with Q 2:\n    # equalizer = \"-af \\\"equalizer=f=1000:t=q:w=1:g=2,equalizer=f=100:t=q:w=2:g=-5\\\"\"\n\n    #lowpass at 1000\n    \n    # b0 = -8\n    b0 = -4\n\n    # b250 = 4\n    b250 = 2\n\n    # e1000 = -8\n    e1000 = -6\n\n    e4000 = 0\n    e16000 = -8\n    equalizer = f\"-af \\\"firequalizer=gain_entry='entry(0,{b0});entry(250,{b250});entry(1000,{e1000});entry(4000,{e4000});entry(16000,{e16000})'\\\"\"\n\n    # echo = \"-af aecho=1:0.3:10:1\"\n    # echo = \"-af aecho=1.0:0.7:10:0.5\"\n    echo = \"\"\n\n    # fr = input(\"Frame rate (10):\")\n    fr = 10\n    hardware = \"-c:v h264_nvenc\"\n    os.system(f\"\"\"ffmpeg -y -rtbufsize 200M -f gdigrab -thread_queue_size 1024 -probesize 10M -r {fr} -draw_mouse 1 -video_size {video_size} -i desktop -f dshow -channel_layout stereo -thread_queue_size 1024 {i} {compressor} {equalizer} -c:v libx264 -r 10 -preset ultrafast -tune zerolatency -crf 25 -pix_fmt yuv420p -c:a aac -strict -2 -ac 2 -b:a 128k -vf \"pad=ceil(iw\/2)*2:ceil(ih\/2)*2\" {echo} \"{filename}\" \"\"\")\n\n\n# filename = \"rtmp:\/\/youtube_stream_url\/03r8-71q2-yrvm-bbe7\"\n# print(get_mic_name())\n\n\n\n\ndef mk_bat(cmd):\n    command = \"py -m \" + cmd\n    with open(root + cmd + \".bat\", \"w\") as file:\n        file.write(command)\n\n\n# # Create the join.bat program\n# command = \"py -m joinmp4\"\n# with open(root + \"join.bat\", \"w\") as file:\n#     file.write(command)\n\n# create the frame rate program\n# mk_bat(\"joinmp4\")\n# mk_bat(\"framerate\")\n\n\n\n# with open(\"c:\\\\users\\\\giova\\\\desktop\\\\ffmpeg_open.bat\", \"w\") as file:\n#     file.write(\"start \" + root)\n\nroot, mic, video = window()\nfilepath, file_root = ask()\nprint(file_root)\nrecord(filepath, mic, video)\n# os.startfile(\"timer.py\")\n\n# TO OPEN THE FOLDER \nos.system(\"start \" + filepath + \"\/\" + file_root)\n\n<\/pre>\n\n\n\n
To see how your devices are called you can use this<\/p>\n\n\n\n
ffmpeg -list_devices true -f dshow -i dummy<\/strong><\/p>\n\n\n\n
\"\"<\/a><\/figure>\n\n\n\n
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