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• Render Multiple Gifs with ffplay/ffmpeg in Winform

  17 juin 2019, par Purqs

  I’m trying to get x number of animated gifs to render on like a Panel or PictureBox and using transparency that is in each gif. I’ve tried a couple approaches but am not super famiular with ffmpeg and such. Below is some code that I use to get it to render inside a panel, but I can’t figure out how to get like 5 gifs to stack/layer on one another and still render as you would expect.

  I need/want this to render in the form and not outputted. I am a little confused to why the ffplay.exe doesn’t use the -i command and that might be why i can’t get it to render. any ideas ?

  Working example below.

  using System;
  
  using System.Collections.Generic;
  
  using System.ComponentModel;
  
  using System.Data;
  
  using System.Drawing;
  
  using System.Linq;
  
  using System.Text;
  
  using System.Threading.Tasks;
  
  using System.Windows.Forms;
  
  using System.Diagnostics;
  
  using System.Threading;
  
  using System.IO;
  
  using System.Reflection;
  
  using System.Runtime.InteropServices;
  
  using System.Drawing.Text;
  
  using System.Text.RegularExpressions;
  
  using System.Configuration;
  
  using Microsoft.Win32;
  
  using System.Windows.Forms.VisualStyles;
  
  
  
  //FOR THIS EXAMPLE CREATE FORM HAVE BUTTON ON IT AND PANEL.
  
  //button: button's click is "button1_Click"
  
  //panel: Needed to output the render on it.
  
  //FILES:
  
  //Test.Gif
  
  //These ff files came from the ffmpeg offical site.
  
  //ffplay.exe //currently using
  
  //ffmpeg.exe //thinking i need to use to get it how I want.
  
  //I most of the code below from https://stackoverflow.com/questions/31465630/ffplay-successfully-moved-inside-my-winform-how-to-set-it-borderless which was a good starting point.
  
  
  
  namespace Test_Form
  
  {
  
      public partial class Form1 : Form
  
      {
  
          [DllImport("user32.dll", SetLastError = true)]
  
          private static extern bool MoveWindow(IntPtr hWnd, int X, int Y, int nWidth, int nHeight, bool bRepaint);
  
  
  
          [DllImport("user32.dll")]
  
          private static extern IntPtr SetParent(IntPtr hWndChild, IntPtr hWndNewParent);
  
  
  
  
  
          //Process ffplay = null;
  
  
  
          public Form1()
  
          {
  
              InitializeComponent();
  
              Application.EnableVisualStyles();
  
              this.DoubleBuffered = true;
  
          }
  
  
  
  
  
  
  
          public Process ffplay = new Process();
  
          private void FFplay()
  
          {
  
              ffplay.StartInfo.FileName = "ffplay.exe";
  
              ffplay.StartInfo.Arguments = "-noborder Test.gif"; //THIS IS WHERE I INPUT THE GIF FILE
  
              ffplay.StartInfo.CreateNoWindow = true;
  
              ffplay.StartInfo.RedirectStandardOutput = true;
  
              ffplay.StartInfo.UseShellExecute = false;
  
  
  
              ffplay.EnableRaisingEvents = true;
  
              ffplay.OutputDataReceived += (o, e) => Debug.WriteLine(e.Data ?? "NULL", "ffplay");
  
              ffplay.ErrorDataReceived += (o, e) => Debug.WriteLine(e.Data ?? "NULL", "ffplay");
  
              ffplay.Exited += (o, e) => Debug.WriteLine("Exited", "ffplay");
  
              ffplay.Start();
  
  
  
              Thread.Sleep(1000); // you need to wait/check the process started, then...
  
  
  
              // child, new parent
  
              // make 'this' the parent of ffmpeg (presuming you are in scope of a Form or Control)
  
              SetParent(ffplay.MainWindowHandle, this.Handle);
  
  
  
              // window, x, y, width, height, repaint
  
              // move the ffplayer window to the top-left corner and set the size to 320x280
  
              MoveWindow(ffplay.MainWindowHandle, 800, 600, 320, 280, true);
  
  
  
              SetParent(ffplay.MainWindowHandle, this.panel1.Handle);
  
              MoveWindow(ffplay.MainWindowHandle, -5, -30, 320, 280, true);
  
          }
  
  
  
  //runs the FFplay Command
  
  private void button1_Click(object sender, EventArgs e)
  
          {
  
              FFplay();
  
  
  
          }
  
  
  
          private void Form1_FormClosed(object sender, FormClosedEventArgs e)
  
          {
  
              try { ffplay.Kill(); }
  
              catch { }
  
          }
  
      }

  I would like the button to allow me to add any number of gifs (like 5 or 10) all to the same area and have them being animated with their transparent showing what is under that gif.

  So for example I could have a circle image, then a spinning/loading transparent gif on top, and then a gif that counts up/down on top of that one to give me the effect of a count-down.

  Thanks for all the help !

• avcodec : add D3D12VA hardware accelerated H264 decoding

  5 décembre 2023, par Wu Jianhua

  avcodec : add D3D12VA hardware accelerated H264 decoding
  The implementation is based on :
  
  https://learn.microsoft.com/en-us/windows/win32/medfound/direct3d-12-video-overview
  With the Direct3D 12 video decoding support, we can render or process
  
  the decoded images by the pixel shaders or compute shaders directly
  
  without the extra copy overhead, which is beneficial especially if you
  
  are trying to render or post-process a 4K or 8K video.
  The command below is how to enable d3d12va :
  
  ffmpeg -hwaccel d3d12va -i input.mp4 output.mp4
  Signed-off-by : Wu Jianhua <toqsxw@outlook.com>
  
  Signed-off-by : Tong Wu <tong1.wu@intel.com>
  

  • [DH] configure
  • [DH] libavcodec/Makefile
  • [DH] libavcodec/d3d11va.h
  • [DH] libavcodec/d3d12va_decode.c
  • [DH] libavcodec/d3d12va_decode.h
  • [DH] libavcodec/d3d12va_h264.c
  • [DH] libavcodec/dxva2.c
  • [DH] libavcodec/dxva2.h
  • [DH] libavcodec/dxva2_av1.c
  • [DH] libavcodec/dxva2_h264.c
  • [DH] libavcodec/dxva2_hevc.c
  • [DH] libavcodec/dxva2_internal.h
  • [DH] libavcodec/dxva2_mpeg2.c
  • [DH] libavcodec/dxva2_vc1.c
  • [DH] libavcodec/dxva2_vp9.c
  • [DH] libavcodec/h264_slice.c
  • [DH] libavcodec/h264dec.c
  • [DH] libavcodec/hwaccels.h
  • [DH] libavcodec/hwconfig.h

• Connect ffmpeg to Visual Studio 2008

  29 avril 2014, par user2274492

  I try to connect ffmpeg to visual c++ like this, but when I type "./configure —toolchain=msvc" I have this error :

  c99wrap cl is unable to create an executable file.

  If c99wrap cl is a cross-compiler, use the —enable-cross-compile
  option. Only do this if you know what cross compiling means.

  C compiler test failed

  config.log :

  WARNING : pkg-config not found, library detection may fail. mktemp -u
  XXXXXX ./configure : line 728 : mktemp : command not found WARNING :
  Unknown C compiler C :\c99\c99wrap cl, unable to select optimal CFLAGS
  check_ld cc check_cc BEGIN /tmp/ffconf..ZHENYA.500.5884.c
  1 int main(void) return 0 ; END /tmp/ffconf..ZHENYA.500.5884.c C :\c99\c99wrap cl -c -o /tmp/ffconf..ZHENYA.500.5884.o
  /tmp/ffconf..ZHENYA.500.5884.c fatal error C1510 : Cannot load language
  resource clui.dll. C compiler test failed.

  What’s the problem ? Or just send me files that you got after compilation with this (I would not have asked, but I fix this two months) :

  ./configure —toolchain=msvc

  make

  make install

  ---

  log after changes :

     WARNING: pkg-config not found, library detection may fail.
  
  mktemp -u XXXXXX
  
  Uxplas
  
  check_ld cc
  
  check_cc
  
  BEGIN /tmp/ffconf.WcAVdgRZ.c
  
      1   int main(void){ return 0; }
  
  END /tmp/ffconf.WcAVdgRZ.c
  
  c99wrap cl -nologo -D_USE_MATH_DEFINES -Dinline=__inline -FIstdlib.h -Dstrtoll=_strtoi64 -c -Fo /tmp/ffconf.jQtxnkfv.o /tmp/ffconf.WcAVdgRZ.c
  
  ffconf.WcAVdgRZ.c
  
  ffconf.jQtxnkfv.o_converted.c
  
  c99wrap link -o /tmp/ffconf.sPZUPuMJ.exe /tmp/ffconf.jQtxnkfv.o
  
  link: invalid option -- o
  
  Try `link --help' for more information.
  
  C compiler test failed.

  log from second computer :

  WARNING: pkg-config not found, library detection may fail.
  
  mktemp -u XXXXXX
  
  ./configure: line 749: mktemp: command not found
  
  WARNING: Unknown C compiler c99wrap cl, unable to select optimal CFLAGS
  
  check_ld cc
  
  check_cc
  
  BEGIN /tmp/ffconf..zhenya.500.4036.c
  
  END /tmp/ffconf..zhenya.500.4036.c
  
  c99wrap cl -I/local/include -c -o /tmp/ffconf..zhenya.500.4036.o /tmp/ffconf..zhenya.500.4036.c
  
  ./configure: line 749: c99wrap: command not found
  
  C compiler test failed.

  Errors :

  1>ConsoleApplication1.obj : error LNK2028: ёё√ыър эр эхЁрчЁх°хээє■ ыхъёхьє (0A000039) "void __cdecl av_register_all(void)" (?av_register_all@@$$FYAXXZ) т ЇєэъЎшш "int __clrcall main(cli::array<class>^)" (?main@@$$HYMHP$01AP$AAVString@System@@@Z)
  
  1>ConsoleApplication1.obj : error LNK2019: ёё√ыър эр эхЁрчЁх°хээ√щ тэх°эшщ ёшьтюы "void __cdecl av_register_all(void)" (?av_register_all@@$$FYAXXZ) т ЇєэъЎшш "int __clrcall main(cli::array<class>^)" (?main@@$$HYMHP$01AP$AAVString@System@@@Z)
  
  1>c:\users\Zhenya\documents\visual studio 2012\Projects\ConsoleApplication1\Debug\ConsoleApplication1.exe : fatal error LNK1120: эхЁрчЁх°хээ√ї тэх°эшї ¤ыхьхэЄют: 2
  
  </class></class>