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Sur d’autres sites (9998)

  • Why when using ffmpeg to create in real time avi video file from images the avi file is playing with purple noisy color ?

    30 juin 2015, par Brubaker Haim

    This is my Ffmpeg class i did some time ago

    using System;
    
using System.Windows.Forms;
    
using System.Collections.Generic;
    
using System.Linq;
    
using System.Text;
    
using System.Threading.Tasks;
    
using System.Drawing;
    
using System.IO.Pipes;
    
using System.Runtime.InteropServices;
    
using System.Diagnostics;
    
using System.IO;
    
using DannyGeneral;
    

    
namespace Manager
    
{
    
    class Ffmpeg
    
    {
    
        NamedPipeServerStream p;
    
        String pipename = "mytestpipe";
    
        System.Diagnostics.Process process;
    
        string ffmpegFileName = "ffmpeg.exe";
    
        string workingDirectory;
    

    
        public Ffmpeg()
    
        {
    
            workingDirectory = Path.GetDirectoryName(Application.ExecutablePath);
    
            Logger.Write("workingDirectory: " + workingDirectory);
    
            if (!Directory.Exists(workingDirectory))
    
            {
    
                Directory.CreateDirectory(workingDirectory);
    
            }
    
            ffmpegFileName = Path.Combine(workingDirectory, ffmpegFileName);
    
            Logger.Write("FfmpegFilename: " + ffmpegFileName);
    
        }
    

    
        public void Start(string pathFileName, int BitmapRate)
    
        {
    
            try
    
            {
    

    
                string outPath = pathFileName;
    
                p = new NamedPipeServerStream(pipename, PipeDirection.Out, 1, PipeTransmissionMode.Byte);
    

    
                ProcessStartInfo psi = new ProcessStartInfo();
    
                psi.WindowStyle = ProcessWindowStyle.Hidden;
    
                psi.UseShellExecute = false;
    
                psi.CreateNoWindow = false;
    
                psi.FileName = ffmpegFileName;
    
                psi.WorkingDirectory = workingDirectory;
    
                psi.Arguments = @"-f rawvideo -pix_fmt yuv420p -video_size 1920x1080 -i \\.\pipe\mytestpipe -map 0 -c:v mpeg4 -r " + BitmapRate + " " + outPath;
    
                process = Process.Start(psi);
    
                process.EnableRaisingEvents = false;
    
                psi.RedirectStandardError = true;
    
                p.WaitForConnection();
    
            }
    
            catch (Exception err)
    
            {
    
                Logger.Write("Exception Error: " + err.ToString());
    
            }
    
        }
    

    
        public void PushFrame(Bitmap bmp)
    
        {
    
            try
    
            {
    
                int length;
    
                // Lock the bitmap's bits.
    
                //bmp = new Bitmap(1920, 1080);
    
                Rectangle rect = new Rectangle(0, 0, bmp.Width, bmp.Height);
    
                //Rectangle rect = new Rectangle(0, 0, 1280, 720);
    
                System.Drawing.Imaging.BitmapData bmpData =
    
                    bmp.LockBits(rect, System.Drawing.Imaging.ImageLockMode.ReadOnly,
    
                    bmp.PixelFormat);
    

    
                int absStride = Math.Abs(bmpData.Stride);
    
                // Get the address of the first line.
    
                IntPtr ptr = bmpData.Scan0;
    

    
                // Declare an array to hold the bytes of the bitmap.
    
                //length = 3 * bmp.Width * bmp.Height;
    
                length = absStride * bmpData.Height;
    
                byte[] rgbValues = new byte[length];
    

    
                //Marshal.Copy(ptr, rgbValues, 0, length);
    
                int j = bmp.Height - 1;
    
                for (int i = 0; i < bmp.Height; i++)
    
                {
    
                    IntPtr pointer = new IntPtr(bmpData.Scan0.ToInt32() + (bmpData.Stride * j));
    
                    System.Runtime.InteropServices.Marshal.Copy(pointer, rgbValues, absStride * (bmp.Height - i - 1), absStride);
    
                    j--;
    
                }
    
                p.Write(rgbValues, 0, length);
    
                bmp.UnlockBits(bmpData);
    
            }
    
            catch(Exception err)
    
            {
    
                Logger.Write("Error: " + err.ToString());
    
            }
    

    
        }
    

    
        public void Close()
    
        {
    
            p.Close();
    
        }
    
    }
    
}

    And i’m using it in form1 in a button click event :

    private void button1_Click(object sender, EventArgs e)
    
        {
    
            timer1.Start();
    
        }

    the directroy screenshots is where i’m taking a screenshot every 100ms in the timer1 tick event :

        ScreenShot shot = new ScreenShot();
    
    public static int counter = 0;
    
    private void timer1_Tick(object sender, EventArgs e)
    
    {
    
        counter++;
    
        shot.GetScreenShot(@"e:\screenshots\", "screenshot");
    
        if (counter == 1200)
    
        {
    
            timer1.Stop();
    
        }
    
    }

    I’m calling the method PushFrame from inside the ScreenShot class where i save the screenshots.

    Ffmpeg fmpeg;

    Then :

    fmpeg = new Ffmpeg();
    
fmpeg.Start(@"e:\screenshots\test.avi", 25);

    And :

    public Bitmap GetScreenShot(string folder, string name)
    
    {
    
        _screenShot = new Bitmap(GetScreen());
    
        System.GC.Collect();
    
        System.GC.WaitForPendingFinalizers();
    
        string ingName = folder + name + Elgato_Video_Capture.counter.ToString("D6") + ".bmp";
    
        _screenShot.Save(ingName);
    
        fmpeg.PushFrame(_screenShot);
    
        _screenShot.Dispose();
    

    
        return _screenShot;
    
    }

    All the images on the hard disk are fine i can edit/open them and watch them no problems.
    They are also same size.

    The result in the end is one big avi file 1.08 GB size.
    But when i play it i see many windows running inside very fast and all painted with noisy purple color.

    Here a screenshot from the video file when playing it :

    avi file playing screenshot

    I think the problem is somewhere in the Ffmpeg class where i give parameters to the ffmpeg.exe

    psi.Arguments = @"-f rawvideo -pix_fmt yuv420p -video_size 1920x1080 -i \\.\pipe\mytestpipe -map 0 -c:v mpeg4 -r " + BitmapRate + " " + outPath;

    Not sure what make this avi file to look like that.

    This is the video file the result i got : https://www.youtube.com/watch?v=fdxPus-Xv1k&feature=youtu.be

  • Generated ffmpeg video seems to be not a real video file

    18 septembre 2020, par asored

    I try to create a video with ffmpeg and save it to the device with gallery_saver package for Flutter.

    


    The ffmpeg command works well and the video is created. But GallerySaver does not save it. As result I get no error, but a false boolean for the success argument.

    


    This is the ffmpeg output. Is this a valid video mp4 file ?

    


    Restarted application in 683ms.
[38;5;244m[Easy Localization] [39;49mStart
[38;5;244m[Easy Localization] [39;49mInit state
[38;5;244m[Easy Localization] [39;49mBuild
[38;5;244m[Easy Localization] [39;49mDevice locale de_DE
[38;5;244m[Easy Localization] [39;49mLoad asset from assets/translations
[38;5;244m[Easy Localization] [39;49mInit Localization Delegate
[38;5;244m[Easy Localization] [39;49mInit provider
[38;5;244m[Easy Localization] [39;49mLoad Localization Delegate
flutter: Loading flutter-ffmpeg.
flutter: Loaded flutter-ffmpeg-ios-arm64.
flutter: ffmpeg version git-2020-01-25-fd11dd500 Copyright (c) 2000-2020 the FFmpeg developers
  built with Apple clang version 11.0.0 (clang-1100.0.33.17)
  configuration: --sysroot=/Applications/Xcode.app/Contents/Developer/Platforms/iPhoneOS.platform/Developer/SDKs/iPhoneOS13.2.sdk --prefix=/Users/taner/Projects/mobile-ffmpeg/prebuilt/ios-arm64-apple-darwin/ffmpeg --enable-version3 --arch=aarch64 --cpu=armv8 --target-os=darwin --ar=/Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/ar --cc=clang --cxx=clang++ --as='/Users/taner/Projects/mobile-ffmpeg/.tmp/gas-preprocessor.pl -arch aarch64 -- clang -arch arm64 -target aarch64-ios-darwin -march=armv8-a+crc+crypto -mcpu=generic -DMOBILE_FFMPEG_ARM64 -Wno-unused-function -Wno-deprecated-declarations -fstrict-aliasing -fembed-bitcode -DIOS -DMOBILE_FFMPEG_BUILD_DATE=20200125 -isysroot /Applications/Xcode.app/Contents/Developer/Platforms/iPhoneOS.platform/Developer/SDKs/iPhoneOS13.2.sdk -Oz -miphoneos-version-min=12.1 -I/Applications/Xcode.app/Contents/Developer/Platforms/iPhoneOS.platform/Developer/SDKs/iPhoneOS13.2.sdk/usr/include' --ranlib=/Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/ranlib --strip=/Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/strip --enable-neon --enable-cross-compile --enable-pic --enable-asm --enable-inline-asm --enable-optimizations --enable-swscale --enable-static --disable-shared --enable-small --disable-v4l2-m2m --disable-outdev=v4l2 --disable-outdev=fbdev --disable-indev=v4l2 --disable-indev=fbdev --disable-openssl --disable-xmm-clobber-test --disable-debug --disable-neon-clobber-test --disable-programs --disable-postproc --disable-doc --disable-htmlpages --disable-manpages --disable-podpages --disable-txtpages --disable-sndio --disable-schannel --disable-securetransport --disable-xlib --disable-cuda --disable-cuvid --disable-nvenc --disable-vaapi --disable-vdpau --disable-appkit --disable-alsa --disable-cuda --disable-cuvid --disable-nvenc --disable-vaapi --disable-vdpau --enable-gmp --enable-gnutls --enable-libx264 --enable-gpl --enable-libxvid --enable-gpl --enable-libx265 --enable-gpl --enable-libvidstab --enable-gpl --disable-sdl2 --enable-zlib --enable-audiotoolbox --enable-coreimage --enable-bzlib --enable-videotoolbox --enable-avfoundation --enable-iconv
  libavutil      56. 38.100 / 56. 38.100
  libavcodec     58. 65.102 / 58. 65.102
  libavformat    58. 35.101 / 58. 35.101
  libavdevice    58.  9.103 / 58.  9.103
  libavfilter     7. 70.101 /  7. 70.101
  libswscale      5.  6.100 /  5.  6.100
  libswresample   3.  6.100 /  3.  6.100
Input #0, mp3, from '/var/mobile/Containers/Data/Application/2F90BA97-59E6-4632-B86A-2B0C1C552273/Library/Caches/melodic_slow.mp3':
  Metadata:
    encoder         : LAME 32bits version 3.99.5 (http://lame.sf.net)
    TLEN            : 134072
  Duration: 00:02:14.11, start: 0.025057, bitrate: 320 kb/s
    Stream #0:0: Audio: mp3, 44100 Hz, stereo, fltp, 320 kb/s
    Metadata:
      encoder         : LAME3.99r
Input #1, mov,mp4,m4a,3gp,3g2,mj2, from '/var/mobile/Containers/Data/Application/2F90BA97-59E6-4632-B86A-2B0C1C552273/Library/Caches/Memories-8c4a9c20-f9b8-11ea-b262-853cab0c1dfa.mp4':
  Metadata:
    major_brand     : isom
    minor_version   : 512
    compatible_brands: isomiso2avc1mp41
    encoder         : Lavf58.35.101
  Duration: 00:00:00.17, start: 0.000000, bitrate: 55269 kb/s
    Stream #1:0(und): Video: h264 (avc1 / 0x31637661), yuv420p, 4032x3024 [SAR 1:1 DAR 4:3], 55338 kb/s, 24 fps, 24 tbr, 12288 tbn, 48 tbc (default)
    Metadata:
      handler_name    : VideoHandler
Stream mapping:
  Stream #1:0 -> #0:0 (h264 (native) -> h264 (libx264))
  Stream #0:0 -> #0:1 (mp3 (mp3float) -> aac (native))
Press [q] to stop, [?] for help
frame=    0 fps=0.0 q=0.0 size=       0kB time=-577014:32:22.77 bitrate=  -0.0kbits/s speed=N/A
sws_param option is deprecated and ignored
using SAR=1/1
using cpu capabilities: ARMv8 NEON
profile High, level 6.0, 4:2:0, 8-bit
264 - core 159 - H.264/MPEG-4 AVC codec - Copyleft 2003-2019 - 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=9 lookahead_threads=1 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=24 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 '/var/mobile/Containers/Data/Application/2F90BA97-59E6-4632-B86A-2B0C1C552273/Library/Caches/Memories-8da54a20-f9b8-11ea-b216-7df10c3fe45b.mp4':
  Metadata:
    TLEN            : 134072
    encoder         : Lavf58.35.101
    Stream #0:0(und): Video: h264 (libx264) (avc1 / 0x31637661), yuv420p(progressive), 4032x3024 [SAR 1:1 DAR 4:3], q=-1--1, 24 fps, 12288 tbn, 24 tbc (default)
    Metadata:
      handler_name    : VideoHandler
      encoder         : Lavc58.65.102 libx264
    Side data:
      cpb: bitrate max/min/avg: 0/0/0 buffer size: 0 vbv_delay: N/A
    Stream #0:1: Audio: aac (mp4a / 0x6134706D), 44100 Hz, stereo, fltp, 128 kb/s
    Metadata:
      encoder         : Lavc58.65.102 aac
frame=    4 fps=2.5 q=-1.0 Lsize=    1028kB time=00:00:00.18 bitrate=45323.6kbits/s speed=0.115x
video:1023kB audio:3kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: 0.143686%
frame I:1     Avg QP:24.74  size:488633
frame P:3     Avg QP:23.50  size:186193
mb I  I16..4:  3.0% 90.0%  7.1%
mb P  I16..4: 28.7% 67.4%  3.8%  P16..4:  0.2%  0.0%  0.0%  0.0%  0.0%    skip: 0.0%
8x8 transform intra:73.1% inter:60.0%
coded y,uvDC,uvAC intra: 41.8% 29.7% 8.7% inter: 3.7% 1.7% 0.3%
i16 v,h,dc,p: 53% 33%  3% 11%
i8 v,h,dc,ddl,ddr,vr,hd,vl,hu: 30% 22% 22%  4%  4%  3%  7%  4%  5%
i4 v,h,dc,ddl,ddr,vr,hd,vl,hu: 28% 30% 12%  4%  5%  4%  8%  4%  5%
i8c dc,h,v,p: 70% 18%  9%  3%
Weighted P-Frames: Y:33.3% UV:33.3%
ref P L0:  1.4%  0.0% 95.5%  0.0%  3.1%
kb/s:50266.18
Qavg: 134.735
flutter: ffmpeg version git-2020-01-25-fd11dd500
flutter:  Copyright (c) 2000-2020 the FFmpeg developers
flutter:
flutter:   built with Apple clang version 11.0.0 (clang-1100.0.33.17)
flutter:   configuration: --sysroot=/Applications/Xcode.app/Contents/Developer/Platforms/iPhoneOS.platform/Developer/SDKs/iPhoneOS13.2.sdk --prefix=/Users/taner/Projects/mobile-ffmpeg/prebuilt/ios-arm64-apple-darwin/ffmpeg --enable-version3 --arch=aarch64 --cpu=armv8 --target-os=darwin --ar=/Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/ar --cc=clang --cxx=clang++ --as='/Users/taner/Projects/mobile-ffmpeg/.tmp/gas-preprocessor.pl -arch aarch64 -- clang -arch arm64 -target aarch64-ios-darwin -march=armv8-a+crc+crypto -mcpu=generic -DMOBILE_FFMPEG_ARM64 -Wno-unused-function -Wno-deprecated-declarations -fstrict-aliasing -fembed-bitcode -DIOS -DMOBILE_FFMPEG_BUILD_DATE=20200125 -isysroot /Applications/Xcode.app/Contents/Developer/Platforms/iPhoneOS.platform/Developer/SDKs/iPhoneOS13.2.sdk -Oz -miphoneos-version-min=12.1 -I/Applications/Xcode.app/Contents/Developer/Platforms/iPhoneOS.platform/Developer/SDKs/iPhoneOS13.2.sdk/usr/include' --ranlib=/Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/ranlib --strip=/Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/strip --enable-neon --enable-cross-compile --enable-pic --enable-asm --enable-inline-asm --enable-optimizations --enable-swscale --enable-static --disable-shared --enable-small --disable-v4l2-m2m --disable-outdev=v4l2 --disable-outdev=fbdev --disable-indev=v4l2 --disable-indev=fbdev --disable-openssl --disable-xmm-clobber-test --disable-debug --disable-neon-clobber-test --disable-programs --disable-postproc --disable-doc --disable-htmlpages --disable-manpages --disable-podpages --disable-txtpages --disable-sndio --disable-schannel --disable-securetransport --disable-xlib --disable-cuda --disable-cuvid --disable-nvenc --disable-vaapi --disable-vdpau --disable-appkit --disable-alsa --disable-cuda --disable-cuvid --disable-nvenc --disable-vaapi --disable-vdpau --enable-gmp --enable-gnutls --enable-libx264 --enable-gpl --enable-libxvid --enable-gpl --enable-libx265 --enable-gpl --enable-libvidstab --enable-gpl --disable-sdl2 --enable-zlib --enable-audiotoolbox --enable-coreimage --enable-bzlib --enable-videotoolbox --enable-avfoundation --enable-iconv
flutter:   libavutil      56. 38.100 / 56. 38.100
flutter:   libavcodec     58. 65.102 / 58. 65.102
flutter:   libavformat    58. 35.101 / 58. 35.101
flutter:   libavdevice    58.  9.103 / 58.  9.103
flutter:   libavfilter     7. 70.101 /  7. 70.101
flutter:   libswscale      5.  6.100 /  5.  6.100
flutter:   libswresample   3.  6.100 /  3.  6.100
flutter: Input #0, image2, from '/var/mobile/Containers/Data/Application/2F90BA97-59E6-4632-B86A-2B0C1C552273/Library/Caches/img%04d.jpg':
flutter:   Duration:
flutter: 00:00:00.20
flutter: , start:
flutter: 0.000000
flutter: , bitrate:
flutter: N/A
flutter:
flutter:     Stream #0:0
flutter: : Video: mjpeg, yuvj444p(pc, bt470bg/unknown/unknown), 4032x3024 [SAR 72:72 DAR 4:3]
flutter: ,
flutter: 25 tbr,
flutter: 25 tbn,
flutter: 25 tbc
flutter:
flutter: Stream mapping:
flutter:   Stream #0:0 -> #0:0
flutter:  (mjpeg (native) -> h264 (libx264))
flutter:
flutter: Press [q] to stop, [?] for help
flutter: sws_param option is deprecated and ignored
flutter: deprecated pixel format used, make sure you did set range correctly
flutter: using SAR=1/1
flutter: using cpu capabilities: ARMv8 NEON
flutter: profile High, level 6.0, 4:2:0, 8-bit
flutter: 264 - core 159 - H.264/MPEG-4 AVC codec - Copyleft 2003-2019 - 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=9 lookahead_threads=1 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=24 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
flutter: Output #0, mp4, to '/var/mobile/Containers/Data/Application/2F90BA97-59E6-4632-B86A-2B0C1C552273/Library/Caches/Memories-f2ae4f70-f9b8-11ea-bb69-c999fb23197b.mp4':
flutter:   Metadata:
flutter:     encoder         :
flutter: Lavf58.35.101
flutter:
flutter:     Stream #0:0
flutter: : Video: h264 (libx264) (avc1 / 0x31637661), yuv420p, 4032x3024 [SAR 1:1 DAR 4:3], q=-1--1
flutter: ,
flutter: 24 fps,
flutter: 12288 tbn,
flutter: 24 tbc
flutter:
flutter:     Metadata:
flutter:       encoder         :
flutter: Lavc58.65.102 libx264
flutter:
flutter:     Side data:
flutter:
flutter: cpb:
flutter: bitrate max/min/avg: 0/0/0 buffer size: 0
flutter: vbv_delay: N/A
flutter:
flutter: frame=    1 fps=0.0 q=0.0 size=       0kB time=00:00:00.00 bitrate=N/A speed=   0x
flutter: sws_param option is deprecated and ignored
flutter: deprecated pixel format used, make sure you did set range correctly
flutter: sws_param option is deprecated and ignored
flutter: deprecated pixel format used, make sure you did set range correctly
flutter: frame=    4 fps=0.0 q=0.0 size=       0kB time=00:00:00.00 bitrate=N/A speed=   0x
flutter: frame=    5 fps=1.8 q=-1.0 Lsize=    1485kB time=00:00:00.08 bitrate=145828.4kbits/s speed=0.0305x
flutter: video:1484kB audio:0kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead:
flutter: 0.059291%
flutter:
flutter: frame I:1     Avg QP:24.93  size:366082
flutter: frame P:4     Avg QP:24.17  size:288219
flutter: mb I  I16..4:  8.6% 81.4% 10.1%
flutter: mb P  I16..4: 21.7% 71.4%  6.6%  P16..4:  0.2%  0.0%  0.0%  0.0%  0.0%    skip: 0.0%
flutter: 8x8 transform intra:73.6% inter:79.9%
flutter: coded y,uvDC,uvAC intra: 48.6% 33.8% 12.6% inter: 33.4% 41.4% 0.0%
flutter: i16 v,h,dc,p: 53% 31%  4% 12%
flutter: i8 v,h,dc,ddl,ddr,vr,hd,vl,hu: 29% 18% 24%  5%  4%  4%  6%  5%  5%
flutter: i4 v,h,dc,ddl,ddr,vr,hd,vl,hu: 28% 23% 14%  7%  6%  5%  7%  5%  5%
flutter: i8c dc,h,v,p: 67% 17% 12%  4%
flutter: Weighted P-Frames: Y:25.0% UV:25.0%
flutter: ref P L0: 43.6%  0.2% 55.0%  0.0%  1.1%
flutter: kb/s:58327.98
flutter: ffmpeg version git-2020-01-25-fd11dd500
flutter:  Copyright (c) 2000-2020 the FFmpeg developers
flutter:
flutter:   built with Apple clang version 11.0.0 (clang-1100.0.33.17)
flutter:   configuration: --sysroot=/Applications/Xcode.app/Contents/Developer/Platforms/iPhoneOS.platform/Developer/SDKs/iPhoneOS13.2.sdk --prefix=/Users/taner/Projects/mobile-ffmpeg/prebuilt/ios-arm64-apple-darwin/ffmpeg --enable-version3 --arch=aarch64 --cpu=armv8 --target-os=darwin --ar=/Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/ar --cc=clang --cxx=clang++ --as='/Users/taner/Projects/mobile-ffmpeg/.tmp/gas-preprocessor.pl -arch aarch64 -- clang -arch arm64 -target aarch64-ios-darwin -march=armv8-a+crc+crypto -mcpu=generic -DMOBILE_FFMPEG_ARM64 -Wno-unused-function -Wno-deprecated-declarations -fstrict-aliasing -fembed-bitcode -DIOS -DMOBILE_FFMPEG_BUILD_DATE=20200125 -isysroot /Applications/Xcode.app/Contents/Developer/Platforms/iPhoneOS.platform/Developer/SDKs/iPhoneOS13.2.sdk -Oz -miphoneos-version-min=12.1 -I/Applications/Xcode.app/Contents/Developer/Platforms/iPhoneOS.platform/Developer/SDKs/iPhoneOS13.2.sdk/usr/include' --ranlib=/Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/ranlib --strip=/Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/strip --enable-neon --enable-cross-compile --enable-pic --enable-asm --enable-inline-asm --enable-optimizations --enable-swscale --enable-static --disable-shared --enable-small --disable-v4l2-m2m --disable-outdev=v4l2 --disable-outdev=fbdev --disable-indev=v4l2 --disable-indev=fbdev --disable-openssl --disable-xmm-clobber-test --disable-debug --disable-neon-clobber-test --disable-programs --disable-postproc --disable-doc --disable-htmlpages --disable-manpages --disable-podpages --disable-txtpages --disable-sndio --disable-schannel --disable-securetransport --disable-xlib --disable-cuda --disable-cuvid --disable-nvenc --disable-vaapi --disable-vdpau --disable-appkit --disable-alsa --disable-cuda --disable-cuvid --disable-nvenc --disable-vaapi --disable-vdpau --enable-gmp --enable-gnutls --enable-libx264 --enable-gpl --enable-libxvid --enable-gpl --enable-libx265 --enable-gpl --enable-libvidstab --enable-gpl --disable-sdl2 --enable-zlib --enable-audiotoolbox --enable-coreimage --enable-bzlib --enable-videotoolbox --enable-avfoundation --enable-iconv
flutter:   libavutil      56. 38.100 / 56. 38.100
flutter:   libavcodec     58. 65.102 / 58. 65.102
flutter:   libavformat    58. 35.101 / 58. 35.101
flutter:   libavdevice    58.  9.103 / 58.  9.103
flutter:   libavfilter     7. 70.101 /  7. 70.101
flutter:   libswscale      5.  6.100 /  5.  6.100
flutter:   libswresample   3.  6.100 /  3.  6.100
flutter: Input #0, mp3, from '/var/mobile/Containers/Data/Application/2F90BA97-59E6-4632-B86A-2B0C1C552273/Library/Caches/melodic_slow.mp3':
flutter:   Metadata:
flutter:     encoder         :
flutter: LAME 32bits version 3.99.5 (http://lame.sf.net)
flutter:
flutter:     TLEN            :
flutter: 134072
flutter:
flutter:   Duration:
flutter: 00:02:14.11
flutter: , start:
flutter: 0.025057
flutter: , bitrate:
flutter: 320 kb/s
flutter:
flutter:     Stream #0:0
flutter: : Audio: mp3, 44100 Hz, stereo, fltp, 320 kb/s
flutter:
flutter:     Metadata:
flutter:       encoder         :
flutter: LAME3.99r
flutter:
flutter: Input #1, mov,mp4,m4a,3gp,3g2,mj2, from '/var/mobile/Containers/Data/Application/2F90BA97-59E6-4632-B86A-2B0C1C552273/Library/Caches/Memories-f2ae4f70-f9b8-11ea-bb69-c999fb23197b.mp4':
flutter:   Metadata:
flutter:     major_brand     :
flutter: isom
flutter:
flutter:     minor_version   :
flutter: 512
flutter:
flutter:     compatible_brands:
flutter: isomiso2avc1mp41
flutter:
flutter:     encoder         :
flutter: Lavf58.35.101
flutter:
flutter:   Duration:
flutter: 00:00:00.21
flutter: , start:
flutter: 0.000000
flutter: , bitrate:
flutter: 58202 kb/s
flutter:
flutter:     Stream #1:0
flutter: (und)
flutter: : Video: h264 (avc1 / 0x31637661), yuv420p, 4032x3024 [SAR 1:1 DAR 4:3], 58353 kb/s
flutter: ,
flutter: 24 fps,
flutter: 24 tbr,
flutter: 12288 tbn,
flutter: 48 tbc
flutter:  (default)
flutter:
flutter:     Metadata:
flutter:       handler_name    :
flutter: VideoHandler
flutter:
flutter: Stream mapping:
flutter:   Stream #1:0 -> #0:0
flutter:  (h264 (native) -> h264 (libx264))
flutter:
flutter:   Stream #0:0 -> #0:1
flutter:  (mp3 (mp3float) -> aac (native))
flutter:
flutter: Press [q] to stop, [?] for help
flutter: frame=    0 fps=0.0 q=0.0 size=       0kB time=-577014:32:22.77 bitrate=  -0.0kbits/s speed=N/A
flutter: sws_param option is deprecated and ignored
flutter: using SAR=1/1
flutter: using cpu capabilities: ARMv8 NEON
flutter: profile High, level 6.0, 4:2:0, 8-bit
flutter: 264 - core 159 - H.264/MPEG-4 AVC codec - Copyleft 2003-2019 - 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=9 lookahead_threads=1 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=24 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
flutter: Output #0, mp4, to '/var/mobile/Containers/Data/Application/2F90BA97-59E6-4632-B86A-2B0C1C552273/Library/Caches/Memories-f475c900-f9b8-11ea-9b26-639f1e3575c9.mp4':
flutter:   Metadata:
flutter:     TLEN            :
flutter: 134072
flutter:
flutter:     encoder         :
flutter: Lavf58.35.101
flutter:
flutter:     Stream #0:0
flutter: (und)
flutter: : Video: h264 (libx264) (avc1 / 0x31637661), yuv420p(progressive), 4032x3024 [SAR 1:1 DAR 4:3], q=-1--1
flutter: ,
flutter: 24 fps,
flutter: 12288 tbn,
flutter: 24 tbc
flutter:  (default)
flutter:
flutter:     Metadata:
flutter:       handler_name    :
flutter: VideoHandler
flutter:
flutter:       encoder         :
flutter: Lavc58.65.102 libx264
flutter:
flutter:     Side data:
flutter:
flutter: cpb:
flutter: bitrate max/min/avg: 0/0/0 buffer size: 0
flutter: vbv_delay: N/A
flutter:
flutter:     Stream #0:1
flutter: : Audio: aac (mp4a / 0x6134706D), 44100 Hz, stereo, fltp, 128 kb/s
flutter:
flutter:     Metadata:
flutter:       encoder         :
flutter: Lavc58.65.102 aac
flutter:
flutter: frame=    5 fps=2.4 q=-1.0 Lsize=    1328kB time=00:00:00.20 bitrate=52040.4kbits/s speed= 0.1x
flutter: video:1323kB audio:3kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead:
flutter: 0.112379%
flutter:
flutter: frame I:1     Avg QP:23.27  size:307048
flutter: frame P:4     Avg QP:23.71  size:261707
flutter: mb I  I16..4: 12.0% 84.4%  3.6%
flutter: mb P  I16..4: 21.8% 73.5%  4.6%  P16..4:  0.2%  0.0%  0.0%  0.0%  0.0%    skip: 0.0%
flutter: 8x8 transform intra:75.8% inter:82.6%
flutter: coded y,uvDC,uvAC intra: 43.8% 33.2% 11.5% inter: 18.9% 20.3% 0.2%
flutter: i16 v,h,dc,p: 52% 33%  4% 11%
flutter: i8 v,h,dc,ddl,ddr,vr,hd,vl,hu: 31% 20% 24%  4%  4%  3%  6%  4%  5%
flutter: i4 v,h,dc,ddl,ddr,vr,hd,vl,hu: 31% 28% 12%  4%  5%  4%  7%  5%  5%
flutter: i8c dc,h,v,p: 67% 18% 12%  4%
flutter: Weighted P-Frames: Y:25.0% UV:25.0%
flutter: ref P L0: 24.0%  0.4% 73.9%  0.0%  1.8%
flutter: kb/s:51988.88
flutter: Qavg: 137.086
flutter: /var/mobile/Containers/Data/Application/2F90BA97-59E6-4632-B86A-2B0C1C552273/Library/Caches/Memories-f475c900-f9b8-11ea-9b26-639f1e3575c9.mp4
flutter: Success argument is: false


    


    This are my ffmpeg commands :

    


    First I create a video from images in a folder

    


    -r $settingsFps -i $tempPath/img%04d.jpg -vcodec libx264 -y -an -vf "pad=ceil(iw/2)*2:ceil(ih/2)*2" -pix_fmt yuv420p $tempPath/$videoFileName.mp4

    


    Than I add audio to the video

    


    -i ${finalSong.path} -i $videoPath -shortest $tempPath/$newVideoFileName.mp4

    


  • ffmpeg / python script - is it actually doing anything ?

    13 août 2021, par Mark Cornbill

    I downloaded the following script - it is not my own work ; it came with another Python script which scans through a folder of Rocket League gameplay videos, looking for moments where a goal has been scored (using tesseract-OCR), and then logs the clip filename and frame into a csv file called "detected.csv".

    


    That part has all worked now I've figured it all out ! It is the second part, this script is supposed to read the "detected.csv" list of files and frame numbers, to then trim and create the new video clips and output them to a folder. The code looks like this :

    


    import ntpath
import os

detectedGoalList = []
f = open("detected.csv", "r")
for x in f:
    tup = x.replace("\"[", "").replace("]\"", "").split(", ")
    print(x)
    detectedGoalList.append([tup[0], tup[1]])


for dg in detectedGoalList:
    print(dg[0])
    input_file = "\"{}\"".format(dg[0].replace("'", ""))
    output_path = "../clips/" + ntpath.basename(dg[0]).replace("'", "").replace(
    ".mp4", "").replace("Rocket League®_", "").replace("Rocket League™_", "").replace("Rocket 
    League_", "") + ".clipped.mp4"
    start = (int(dg[1]) - int(30 * 10)) / 30
    if start < 0:
       start = 0
    end = (int(dg[1]) / 30) - 3
    duration = end - start

    os.system("ffmpeg -ss {} -i {} -t {} -c copy {}".format(start, input_file,
                                                        duration, output_path))


    


    The script runs instantly and returns no errors. It doesn't log anything to the terminal. It doesn't output any new clips. I have 5 mp4 files in the "clips" directory that match in the csv file exactly. The "detected.csv" file contains the following :

    


    "['K:/Gameplay Videos/Rocket League/goals/clips\\goal(2).mp4', 1750]"
"['K:/Gameplay Videos/Rocket League/goals/clips\\goal(28).mp4', 1200]"
"['K:/Gameplay Videos/Rocket League/goals/clips\\goal(3).mp4', 3350]"
"['K:/Gameplay Videos/Rocket League/goals/clips\\goal(4).mp4', 3050]"
"['K:/Gameplay Videos/Rocket League/goals/clips\\goal(5).mp4', 3500]"


    


    So I'm pretty sure that the final ffmpeg line is the culprit. I understand basic command line ffmpeg syntax but when it's part of Python code and variables I just can't figure it out. I see reference to the number "30" a lot - maybe the guy who wrote this had 30fps videos as his source (they were after all Playstation replays), I have 60fps videos. I've tried changing those numbers to 60 to no avail.

    


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