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• swscale/x86/input.asm : add x86-optimized planer rgb2yuv functions

  24 novembre 2021, par Mark Reid

  swscale/x86/input.asm : add x86-optimized planer rgb2yuv functions
  sse2 only operates on 2 lanes per loop for to_y and to_uv functions, due
  
  to the lack of pmulld instruction.  Emulating pmulld with 2 pmuludq and shuffles
  
  proved too costly and made to_uv functions slower then the c implementation.
  For to_y on sse2 only float functions are generated,
  
  I was are not able outperform the c implementation on the integer pixel formats.
  For to_a on see4 only the float functions are generated.
  
  sse2 and sse4 generated nearly identical performing code on integer pixel formats,
  
  so only sse2/avx2 versions are generated.
  planar_gbrp_to_y_512_c : 1197.5
  
  planar_gbrp_to_y_512_sse4 : 444.5
  
  planar_gbrp_to_y_512_avx2 : 287.5
  
  planar_gbrap_to_y_512_c : 1204.5
  
  planar_gbrap_to_y_512_sse4 : 447.5
  
  planar_gbrap_to_y_512_avx2 : 289.5
  
  planar_gbrp9be_to_y_512_c : 1380.0
  
  planar_gbrp9be_to_y_512_sse4 : 543.5
  
  planar_gbrp9be_to_y_512_avx2 : 340.0
  
  planar_gbrp9le_to_y_512_c : 1200.5
  
  planar_gbrp9le_to_y_512_sse4 : 442.0
  
  planar_gbrp9le_to_y_512_avx2 : 282.0
  
  planar_gbrp10be_to_y_512_c : 1378.5
  
  planar_gbrp10be_to_y_512_sse4 : 544.0
  
  planar_gbrp10be_to_y_512_avx2 : 337.5
  
  planar_gbrp10le_to_y_512_c : 1200.0
  
  planar_gbrp10le_to_y_512_sse4 : 448.0
  
  planar_gbrp10le_to_y_512_avx2 : 285.5
  
  planar_gbrap10be_to_y_512_c : 1380.0
  
  planar_gbrap10be_to_y_512_sse4 : 542.0
  
  planar_gbrap10be_to_y_512_avx2 : 340.5
  
  planar_gbrap10le_to_y_512_c : 1199.0
  
  planar_gbrap10le_to_y_512_sse4 : 446.0
  
  planar_gbrap10le_to_y_512_avx2 : 289.5
  
  planar_gbrp12be_to_y_512_c : 10563.0
  
  planar_gbrp12be_to_y_512_sse4 : 542.5
  
  planar_gbrp12be_to_y_512_avx2 : 339.0
  
  planar_gbrp12le_to_y_512_c : 1201.0
  
  planar_gbrp12le_to_y_512_sse4 : 440.5
  
  planar_gbrp12le_to_y_512_avx2 : 286.0
  
  planar_gbrap12be_to_y_512_c : 1701.5
  
  planar_gbrap12be_to_y_512_sse4 : 917.0
  
  planar_gbrap12be_to_y_512_avx2 : 338.5
  
  planar_gbrap12le_to_y_512_c : 1201.0
  
  planar_gbrap12le_to_y_512_sse4 : 444.5
  
  planar_gbrap12le_to_y_512_avx2 : 288.0
  
  planar_gbrp14be_to_y_512_c : 1370.5
  
  planar_gbrp14be_to_y_512_sse4 : 545.0
  
  planar_gbrp14be_to_y_512_avx2 : 338.5
  
  planar_gbrp14le_to_y_512_c : 1199.0
  
  planar_gbrp14le_to_y_512_sse4 : 444.0
  
  planar_gbrp14le_to_y_512_avx2 : 279.5
  
  planar_gbrp16be_to_y_512_c : 1364.0
  
  planar_gbrp16be_to_y_512_sse4 : 544.5
  
  planar_gbrp16be_to_y_512_avx2 : 339.5
  
  planar_gbrp16le_to_y_512_c : 1201.0
  
  planar_gbrp16le_to_y_512_sse4 : 445.5
  
  planar_gbrp16le_to_y_512_avx2 : 280.5
  
  planar_gbrap16be_to_y_512_c : 1377.0
  
  planar_gbrap16be_to_y_512_sse4 : 545.0
  
  planar_gbrap16be_to_y_512_avx2 : 338.5
  
  planar_gbrap16le_to_y_512_c : 1201.0
  
  planar_gbrap16le_to_y_512_sse4 : 442.0
  
  planar_gbrap16le_to_y_512_avx2 : 279.0
  
  planar_gbrpf32be_to_y_512_c : 4113.0
  
  planar_gbrpf32be_to_y_512_sse2 : 2438.0
  
  planar_gbrpf32be_to_y_512_sse4 : 1068.0
  
  planar_gbrpf32be_to_y_512_avx2 : 904.5
  
  planar_gbrpf32le_to_y_512_c : 3818.5
  
  planar_gbrpf32le_to_y_512_sse2 : 2024.5
  
  planar_gbrpf32le_to_y_512_sse4 : 1241.5
  
  planar_gbrpf32le_to_y_512_avx2 : 657.0
  
  planar_gbrapf32be_to_y_512_c : 3707.0
  
  planar_gbrapf32be_to_y_512_sse2 : 2444.0
  
  planar_gbrapf32be_to_y_512_sse4 : 1077.0
  
  planar_gbrapf32be_to_y_512_avx2 : 909.0
  
  planar_gbrapf32le_to_y_512_c : 3822.0
  
  planar_gbrapf32le_to_y_512_sse2 : 2024.5
  
  planar_gbrapf32le_to_y_512_sse4 : 1176.0
  
  planar_gbrapf32le_to_y_512_avx2 : 658.5
  planar_gbrp_to_uv_512_c : 2325.8
  
  planar_gbrp_to_uv_512_sse2 : 1726.8
  
  planar_gbrp_to_uv_512_sse4 : 771.8
  
  planar_gbrp_to_uv_512_avx2 : 506.8
  
  planar_gbrap_to_uv_512_c : 2281.8
  
  planar_gbrap_to_uv_512_sse2 : 1726.3
  
  planar_gbrap_to_uv_512_sse4 : 768.3
  
  planar_gbrap_to_uv_512_avx2 : 496.3
  
  planar_gbrp9be_to_uv_512_c : 2336.8
  
  planar_gbrp9be_to_uv_512_sse2 : 1924.8
  
  planar_gbrp9be_to_uv_512_sse4 : 852.3
  
  planar_gbrp9be_to_uv_512_avx2 : 552.8
  
  planar_gbrp9le_to_uv_512_c : 2270.3
  
  planar_gbrp9le_to_uv_512_sse2 : 1512.3
  
  planar_gbrp9le_to_uv_512_sse4 : 764.3
  
  planar_gbrp9le_to_uv_512_avx2 : 491.3
  
  planar_gbrp10be_to_uv_512_c : 2281.8
  
  planar_gbrp10be_to_uv_512_sse2 : 1917.8
  
  planar_gbrp10be_to_uv_512_sse4 : 855.3
  
  planar_gbrp10be_to_uv_512_avx2 : 541.3
  
  planar_gbrp10le_to_uv_512_c : 2269.8
  
  planar_gbrp10le_to_uv_512_sse2 : 1515.3
  
  planar_gbrp10le_to_uv_512_sse4 : 759.8
  
  planar_gbrp10le_to_uv_512_avx2 : 487.8
  
  planar_gbrap10be_to_uv_512_c : 2382.3
  
  planar_gbrap10be_to_uv_512_sse2 : 1924.8
  
  planar_gbrap10be_to_uv_512_sse4 : 855.3
  
  planar_gbrap10be_to_uv_512_avx2 : 540.8
  
  planar_gbrap10le_to_uv_512_c : 2382.3
  
  planar_gbrap10le_to_uv_512_sse2 : 1512.3
  
  planar_gbrap10le_to_uv_512_sse4 : 759.3
  
  planar_gbrap10le_to_uv_512_avx2 : 484.8
  
  planar_gbrp12be_to_uv_512_c : 2283.8
  
  planar_gbrp12be_to_uv_512_sse2 : 1936.8
  
  planar_gbrp12be_to_uv_512_sse4 : 858.3
  
  planar_gbrp12be_to_uv_512_avx2 : 541.3
  
  planar_gbrp12le_to_uv_512_c : 2278.8
  
  planar_gbrp12le_to_uv_512_sse2 : 1507.3
  
  planar_gbrp12le_to_uv_512_sse4 : 760.3
  
  planar_gbrp12le_to_uv_512_avx2 : 485.8
  
  planar_gbrap12be_to_uv_512_c : 2385.3
  
  planar_gbrap12be_to_uv_512_sse2 : 1927.8
  
  planar_gbrap12be_to_uv_512_sse4 : 855.3
  
  planar_gbrap12be_to_uv_512_avx2 : 539.8
  
  planar_gbrap12le_to_uv_512_c : 2377.3
  
  planar_gbrap12le_to_uv_512_sse2 : 1516.3
  
  planar_gbrap12le_to_uv_512_sse4 : 759.3
  
  planar_gbrap12le_to_uv_512_avx2 : 484.8
  
  planar_gbrp14be_to_uv_512_c : 2283.8
  
  planar_gbrp14be_to_uv_512_sse2 : 1935.3
  
  planar_gbrp14be_to_uv_512_sse4 : 852.3
  
  planar_gbrp14be_to_uv_512_avx2 : 540.3
  
  planar_gbrp14le_to_uv_512_c : 2276.8
  
  planar_gbrp14le_to_uv_512_sse2 : 1514.8
  
  planar_gbrp14le_to_uv_512_sse4 : 762.3
  
  planar_gbrp14le_to_uv_512_avx2 : 484.8
  
  planar_gbrp16be_to_uv_512_c : 2383.3
  
  planar_gbrp16be_to_uv_512_sse2 : 1881.8
  
  planar_gbrp16be_to_uv_512_sse4 : 852.3
  
  planar_gbrp16be_to_uv_512_avx2 : 541.8
  
  planar_gbrp16le_to_uv_512_c : 2378.3
  
  planar_gbrp16le_to_uv_512_sse2 : 1476.8
  
  planar_gbrp16le_to_uv_512_sse4 : 765.3
  
  planar_gbrp16le_to_uv_512_avx2 : 485.8
  
  planar_gbrap16be_to_uv_512_c : 2382.3
  
  planar_gbrap16be_to_uv_512_sse2 : 1886.3
  
  planar_gbrap16be_to_uv_512_sse4 : 853.8
  
  planar_gbrap16be_to_uv_512_avx2 : 550.8
  
  planar_gbrap16le_to_uv_512_c : 2381.8
  
  planar_gbrap16le_to_uv_512_sse2 : 1488.3
  
  planar_gbrap16le_to_uv_512_sse4 : 765.3
  
  planar_gbrap16le_to_uv_512_avx2 : 491.8
  
  planar_gbrpf32be_to_uv_512_c : 4863.0
  
  planar_gbrpf32be_to_uv_512_sse2 : 3347.5
  
  planar_gbrpf32be_to_uv_512_sse4 : 1800.0
  
  planar_gbrpf32be_to_uv_512_avx2 : 1199.0
  
  planar_gbrpf32le_to_uv_512_c : 4725.0
  
  planar_gbrpf32le_to_uv_512_sse2 : 2753.0
  
  planar_gbrpf32le_to_uv_512_sse4 : 1474.5
  
  planar_gbrpf32le_to_uv_512_avx2 : 927.5
  
  planar_gbrapf32be_to_uv_512_c : 4859.0
  
  planar_gbrapf32be_to_uv_512_sse2 : 3269.0
  
  planar_gbrapf32be_to_uv_512_sse4 : 1802.0
  
  planar_gbrapf32be_to_uv_512_avx2 : 1201.5
  
  planar_gbrapf32le_to_uv_512_c : 6338.0
  
  planar_gbrapf32le_to_uv_512_sse2 : 2756.5
  
  planar_gbrapf32le_to_uv_512_sse4 : 1476.0
  
  planar_gbrapf32le_to_uv_512_avx2 : 908.5
  planar_gbrap_to_a_512_c : 383.3
  
  planar_gbrap_to_a_512_sse2 : 66.8
  
  planar_gbrap_to_a_512_avx2 : 43.8
  
  planar_gbrap10be_to_a_512_c : 601.8
  
  planar_gbrap10be_to_a_512_sse2 : 86.3
  
  planar_gbrap10be_to_a_512_avx2 : 34.8
  
  planar_gbrap10le_to_a_512_c : 602.3
  
  planar_gbrap10le_to_a_512_sse2 : 48.8
  
  planar_gbrap10le_to_a_512_avx2 : 31.3
  
  planar_gbrap12be_to_a_512_c : 601.8
  
  planar_gbrap12be_to_a_512_sse2 : 111.8
  
  planar_gbrap12be_to_a_512_avx2 : 41.3
  
  planar_gbrap12le_to_a_512_c : 385.8
  
  planar_gbrap12le_to_a_512_sse2 : 75.3
  
  planar_gbrap12le_to_a_512_avx2 : 39.8
  
  planar_gbrap16be_to_a_512_c : 386.8
  
  planar_gbrap16be_to_a_512_sse2 : 79.8
  
  planar_gbrap16be_to_a_512_avx2 : 31.3
  
  planar_gbrap16le_to_a_512_c : 600.3
  
  planar_gbrap16le_to_a_512_sse2 : 40.3
  
  planar_gbrap16le_to_a_512_avx2 : 30.3
  
  planar_gbrapf32be_to_a_512_c : 1148.8
  
  planar_gbrapf32be_to_a_512_sse2 : 611.3
  
  planar_gbrapf32be_to_a_512_sse4 : 234.8
  
  planar_gbrapf32be_to_a_512_avx2 : 183.3
  
  planar_gbrapf32le_to_a_512_c : 851.3
  
  planar_gbrapf32le_to_a_512_sse2 : 263.3
  
  planar_gbrapf32le_to_a_512_sse4 : 199.3
  
  planar_gbrapf32le_to_a_512_avx2 : 156.8
  Reviewed-by : Paul B Mahol <onemda@gmail.com>
  
  Signed-off-by : James Almer <jamrial@gmail.com>
  

  • [DH] libswscale/x86/input.asm
  • [DH] libswscale/x86/swscale.c
  • [DH] tests/checkasm/sw_gbrp.c

• I created a Python code to capture live video using FFmpeg, but the output screen only shows noise

  16 octobre 2024, par chun3 hyun

  The code below is Python code that made my computer screen video capture in real time via ffmpeg.

  


  When I run the code below, it goes well until a new window named 'Captured Frame' is created. But this 'Captured Frame' window doesn't show the full screen of my computer, and the gray screen is generating a lot of noise.

  


  import cv2
import numpy as np
import subprocess

def frame_capture():
    # Set FFmpeg command (capture desired window or area)
    ffmpeg_command = [
        'ffmpeg',
        '-f', 'gdigrab',  # Windows screen capture (using gdigrab)
        '-framerate', '30',  # Setting the Frame Speed
        '-i', 'desktop',  # What to capture (for example, full screen)
        '-pix_fmt', 'bgr0',
        '-vcodec', 'rawvideo',  # Video codec settings
        '-tune', 'zerolatency',
        '-an',  # Disable audio
        '-sn',  # Disable Caption
        '-f', 'rawvideo', '-'
    ]

    # Running the FFmpeg process
    process = subprocess.Popen(ffmpeg_command, stdout=subprocess.PIPE, bufsize=10**8)

    while True:
        # Read Frame from FFmpeg (Resolution Example: 1920x1080)
        raw_frame = process.stdout.read(1920 * 1080 * 3)  # 1920x1080 resolution, BGR format
        if not raw_frame:
            break  # Shut down the loop when you can no longer receive frames

        # Converting frame data to a numpy array
        frame = np.frombuffer(raw_frame, np.uint8).reshape((1080, 1920, 3))

        # Add frame processing code here
        # Example: Showing a frame on the screen
        cv2.imshow('Captured Frame', frame)

        # Press the 'q' key to end
        if cv2.waitKey(1) & 0xFF == ord('q'):
            break

    # End of process and release of resources
    process.stdout.close()
    process.wait()
    cv2.destroyAllWindows()
frame_capture()


  


  What could I have done wrong ? When I directly input the FFmpeg command in the Windows command prompt(knows as 'cmd') as shown below to save the video (in .mp4 format), I can see that the screen is output normally in the saved file. It seems that FFmpeg itself is installed correctly, but I don't know what the cause is.

  


  hwnd=132554 -pix_fmt yuv420p -vf "scale=iw-mod(iw\,2):ih-mod(ih\,2)" -draw_mouse 1 -t 10 output.mp4


  


  The handle number written above was the handle of the active Chrome window on my computer.

  


  My ffmpeg version is 2024-10-10-git-0f5592cfc7-full_build-www.gyan.dev My Python version is 3.12.4
My Windows version and build are as specified below.
:Windows 11 Home, 10.0.22631

  


  Capturing the computer screen with FFmpeg. I tried it, but the output screen shows only noise.

  


• How can I remove silence of a video ? [closed]

  23 septembre 2024, par Alex

  I wanted to automatically remove the silence from some of my videos.

  


  I found the following command by searching :

  


  ffmpeg -i C:\Users\`*`myusername`*`\Desktop\videowithsielence.mp4 -af silenceremove=1:0:-50dB C:\Users\`*`myusername`*`\Desktop\newvideo.mp4


  


  There isn't any error and this is the following output :

  


  ffmpeg version N-117094-g2bf588f273-20240921 Copyright (c) 2000-2024 the FFmpeg developers
  built with gcc 14.2.0 (crosstool-NG 1.26.0.106_ed12fa6)
  configuration: --prefix=/ffbuild/prefix --pkg-config-flags=--static --pkg-config=pkg-config --cross-prefix=x86_64-w64-mingw32- --arch=x86_64 --target-os=mingw32 --enable-gpl --enable-version3 --disable-debug --disable-w32threads --enable-pthreads --enable-iconv --enable-zlib --enable-libfreetype --enable-libfribidi --enable-gmp --enable-libxml2 --enable-lzma --enable-fontconfig --enable-libharfbuzz --enable-libvorbis --enable-opencl --disable-libpulse --enable-libvmaf --disable-libxcb --disable-xlib --enable-amf --enable-libaom --enable-libaribb24 --enable-avisynth --enable-chromaprint --enable-libdav1d --enable-libdavs2 --enable-libdvdread --enable-libdvdnav --disable-libfdk-aac --enable-ffnvcodec --enable-cuda-llvm --enable-frei0r --enable-libgme --enable-libkvazaar --enable-libaribcaption --enable-libass --enable-libbluray --enable-libjxl --enable-libmp3lame --enable-libopus --enable-librist --enable-libssh --enable-libtheora --enable-libvpx --enable-libwebp --enable-libzmq --enable-lv2 --enable-libvpl --enable-openal --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libopenh264 --enable-libopenjpeg --enable-libopenmpt --enable-librav1e --enable-librubberband --enable-schannel --enable-sdl2 --enable-libsoxr --enable-libsrt --enable-libsvtav1 --enable-libtwolame --enable-libuavs3d --disable-libdrm --enable-vaapi --enable-libvidstab --enable-vulkan --enable-libshaderc --enable-libplacebo --enable-libvvenc --enable-libx264 --enable-libx265 --enable-libxavs2 --enable-libxvid --enable-libzimg --enable-libzvbi --extra-cflags=-DLIBTWOLAME_STATIC --extra-cxxflags= --extra-libs=-lgomp --extra-ldflags=-pthread --extra-ldexeflags= --cc=x86_64-w64-mingw32-gcc --cxx=x86_64-w64-mingw32-g++ --ar=x86_64-w64-mingw32-gcc-ar --ranlib=x86_64-w64-mingw32-gcc-ranlib --nm=x86_64-w64-mingw32-gcc-nm --extra-version=20240921
  libavutil      59. 37.100 / 59. 37.100
  libavcodec     61. 17.100 / 61. 17.100
  libavformat    61.  6.100 / 61.  6.100
  libavdevice    61.  2.101 / 61.  2.101
  libavfilter    10.  3.100 / 10.  3.100
  libswscale      8.  2.100 /  8.  2.100
  libswresample   5.  2.100 /  5.  2.100
  libpostproc    58.  2.100 / 58.  2.100
Input #0, mov,mp4,m4a,3gp,3g2,mj2, from 'C:\Users\*myusername*\Desktop\stille.mp4':
  Metadata:
    major_brand     : isom
    minor_version   : 512
    compatible_brands: isomiso2avc1mp41
    encoder         : Lavf61.1.100
  Duration: 00:00:17.60, start: 0.000000, bitrate: 14994 kb/s
  Stream #0:0[0x1](und): Video: h264 (Constrained Baseline) (avc1 / 0x31637661), yuv420p(tv, bt709, progressive), 1920x1080 [SAR 1:1 DAR 16:9], 14915 kb/s, 60 fps, 60 tbr, 15360 tbn (default)
      Metadata:
        handler_name    : VideoHandler
        vendor_id       : [0][0][0][0]
  Stream #0:1[0x2](und): Audio: aac (LC) (mp4a / 0x6134706D), 48000 Hz, stereo, fltp, 83 kb/s (default)
      Metadata:
        handler_name    : SoundHandler
        vendor_id       : [0][0][0][0]
Stream mapping:
  Stream #0:0 -> #0:0 (h264 (native) -> h264 (libx264))
  Stream #0:1 -> #0:1 (aac (native) -> aac (native))
Press [q] to stop, [?] for help
[libx264 @ 000002b596997d00] using SAR=1/1
[libx264 @ 000002b596997d00] using cpu capabilities: MMX2 SSE2Fast SSSE3 SSE4.2 AVX FMA3 BMI2 AVX2
[libx264 @ 000002b596997d00] profile High, level 4.2, 4:2:0, 8-bit
[libx264 @ 000002b596997d00] 264 - core 164 - H.264/MPEG-4 AVC codec - Copyleft 2003-2024 - http://www.videolan.org/x264.html - options: cabac=1 ref=3 deblock=1:0:0 analyse=0x3:0x113 me=hex subme=7 psy=1 psy_rd=1.00:0.00 mixed_ref=1 me_range=16 chroma_me=1 trellis=1 8x8dct=1 cqm=0 deadzone=21,11 fast_pskip=1 chroma_qp_offset=-2 threads=18 lookahead_threads=3 sliced_threads=0 nr=0 decimate=1 interlaced=0 bluray_compat=0 constrained_intra=0 bframes=3 b_pyramid=2 b_adapt=1 b_bias=0 direct=1 weightb=1 open_gop=0 weightp=2 keyint=250 keyint_min=25 scenecut=40 intra_refresh=0 rc_lookahead=40 rc=crf mbtree=1 crf=23.0 qcomp=0.60 qpmin=0 qpmax=69 qpstep=4 ip_ratio=1.40 aq=1:1.00
Output #0, mp4, to 'C:\Users\*myusername*\Desktop\Aufzeich.mp4':
  Metadata:
    major_brand     : isom
    minor_version   : 512
    compatible_brands: isomiso2avc1mp41
    encoder         : Lavf61.6.100
  Stream #0:0(und): Video: h264 (avc1 / 0x31637661), yuv420p(tv, bt709, progressive), 1920x1080 [SAR 1:1 DAR 16:9], q=2-31, 60 fps, 15360 tbn (default)
      Metadata:
        handler_name    : VideoHandler
        vendor_id       : [0][0][0][0]
        encoder         : Lavc61.17.100 libx264
      Side data:
        cpb: bitrate max/min/avg: 0/0/0 buffer size: 0 vbv_delay: N/A
  Stream #0:1(und): Audio: aac (LC) (mp4a / 0x6134706D), 48000 Hz, stereo, fltp, 128 kb/s (default)
      Metadata:
        handler_name    : SoundHandler
        vendor_id       : [0][0][0][0]
        encoder         : Lavc61.17.100 aac
[out#0/mp4 @ 000002b594b08800] video:2969KiB audio:180KiB subtitle:0KiB other streams:0KiB global headers:0KiB muxing overhead: 0.825545%
frame= 1055 fps=236 q=-1.0 Lsize=    3174KiB time=00:00:16.54 bitrate=1571.3kbits/s speed= 3.7x
[libx264 @ 000002b596997d00] frame I:5     Avg QP:14.66  size:136185
[libx264 @ 000002b596997d00] frame P:351   Avg QP:18.48  size:  6338
[libx264 @ 000002b596997d00] frame B:699   Avg QP:25.92  size:   191
[libx264 @ 000002b596997d00] consecutive B-frames:  1.5%  6.1% 73.1% 19.3%
[libx264 @ 000002b596997d00] mb I  I16..4: 61.0% 21.9% 17.2%
[libx264 @ 000002b596997d00] mb P  I16..4:  0.2%  0.1%  0.0%  P16..4:  4.8%  0.8%  0.8%  0.0%  0.0%    skip:93.4%
[libx264 @ 000002b596997d00] mb B  I16..4:  0.0%  0.0%  0.0%  B16..8:  2.0%  0.0%  0.0%  direct: 0.0%  skip:98.0%  L0:75.0% L1:22.4% BI: 2.5%
[libx264 @ 000002b596997d00] 8x8 transform intra:22.8% inter:38.2%
[libx264 @ 000002b596997d00] coded y,uvDC,uvAC intra: 57.3% 73.0% 56.4% inter: 1.0% 1.0% 0.1%
[libx264 @ 000002b596997d00] i16 v,h,dc,p: 31% 25% 32% 12%
[libx264 @ 000002b596997d00] i8 v,h,dc,ddl,ddr,vr,hd,vl,hu: 24% 21% 42%  2%  2%  2%  2%  3%  3%
[libx264 @ 000002b596997d00] i4 v,h,dc,ddl,ddr,vr,hd,vl,hu: 33% 31% 22%  2%  2%  2%  2%  2%  3%
[libx264 @ 000002b596997d00] i8c dc,h,v,p: 41% 32% 13% 13%
[libx264 @ 000002b596997d00] Weighted P-Frames: Y:0.3% UV:0.0%
[libx264 @ 000002b596997d00] ref P L0: 68.2%  7.2% 20.4%  4.2%  0.0%
[libx264 @ 000002b596997d00] ref B L0: 79.0% 18.8%  2.2%
[libx264 @ 000002b596997d00] ref B L1: 98.4%  1.6%
[libx264 @ 000002b596997d00] kb/s:1382.74
[aac @ 000002b596a4f680] Qavg: 21440.516


  


  But the new video is exactly the same as the first one. I also tried changing the 50dB number but that didn't work either... My question is "Why ?" and "How can I fix this ?"...