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• How to overlay and save a video with gif in Android ?

  5 avril 2017, par mr nooby noob

  I currently am able to display a gif while recording a video, however when the video is saved it does not display the gif.

  One hacky solution that I thought of is that I simply could just record the screen while recording and save that file instead, however there are some issues that I have with this, ie the audio quality and other items on the screen being saved, such as the video buttons, etc.

  How can I use something like FFMPEG, or anything else that, to save a gif overlay while recording a video ?

• I cant save the animation

  17 mai 2021, par Gokul

  i tried various examples though i cant find proper solution. This is the example code of my project i want to save this in a mp4 format and i used ffmpeg. Any suggestion for this would be appreciated. Thank you in advance

  


  import pandas as pd
import numpy as np
import ma``tplotlib.pyplot as plt
import matplotlib.animation as animation

df = data.iloc[0:250, 4:12]
df1 = df2.iloc[:,0:3]

a1 = df.iloc[:,0]/2
a2 = df.iloc[:,1]/2
b1 = df.iloc[:,2]/2
b2 = df.iloc[:,3]/2
c1 = df.iloc[:,4]/2
c2 = df.iloc[:,5]/2
m1 = df1.iloc[:,0]
m2 = df1.iloc[:,1]
m3 = df1.iloc[:,2]

fig ,ax = plt.subplots()

l1, = ax.plot (vert1, vert2, 'ro', markersize = m1[0])
l2, = ax.plot (long1, long2, 'ro', markersize = m2[0])
l3, = ax.plot (tras1, tras2, 'ro', markersize = m3[0])

def init():    
    l1.set_data([],[])
    l2.set_data([],[])
    l3.set_data([],[])
    
    return (l1,l2,l3)

def animate(i,l1,l2,l3):
    
    l1.set_data(vert1[i], vert2[i])
    l1.set_markersize(m1[i])
    l2.set_data(long1[i], long2[i])
    l2.set_markersize(m2[i])
    l3.set_data(tras1[i], tras2[i])
    l3.set_markersize(m3[i])

    return (l1,l2,l3)

Writer = animation.writers['ffmpeg']
writer = Writer(fps= 100, metadata = dict(artist = 'me'), bitrate = 1800)

ani = animation.FuncAnimation(fig, animate, fargs=(l1,l2,l3), init_func=init, interval=10, blit=False)
ani.save('/Users/gokulthangavel/Downloads/basic_animation.mp4', writer = writer)

plt.show()


  


• Compiled file for ffmpeg - iphone audio

  3 avril 2012, par Sreekumar Kalarikkal

  I would like to build an iPhone application which streams internet radio stations which includes .wma files also. So I found that in-order to play wma files, we need FFMPEG compiled files. I tried to build FFMPEG for iPhone, but having errors. I followed the guide here,

  I can able to build ffmpeg, but when I run the project using that library, I am getting the following error.

  Ld /Users/sreekumar/Library/Developer/Xcode/DerivedData/WunderRadio-akpvnvqfzqleafaxhbibliqszxbp/Build/Intermediates/WunderRadio.build/Release-iphoneos/WunderRadio.build/Objects-normal/armv6/WunderRadio normal armv6
  
  cd "/Volumes/DISC/Radio App/Running copy/WR1.9/WunderRadio"
  
  setenv IPHONEOS_DEPLOYMENT_TARGET 3.0
  
  setenv PATH "/Developer/Platforms/iPhoneOS.platform/Developer/usr/bin:/Developer/usr/bin:/usr/bin:/bin:/usr/sbin:/sbin"
  
  /Developer/Platforms/iPhoneOS.platform/Developer/usr/bin/gcc-4.2 -arch armv6 -isysroot /Developer/Platforms/iPhoneOS.platform/Developer/SDKs/iPhoneOS4.3.sdk -L/Users/sreekumar/Library/Developer/Xcode/DerivedData/WunderRadio-akpvnvqfzqleafaxhbibliqszxbp/Build/Products/Release-iphoneos -L/Volumes/TUNEAGE/Projects/Debug-iphoneos -L/Volumes/TUNEAGE/Projects/Debug-iphonesimulator "-L/Volumes/DISC/Radio App/Running copy/WR1.9/WunderRadio/../Common/build/Release-iphonesimulator" "-L/Users/sreekumar/Downloads/WR1.9 4/Common/build/Release-iphoneos" "-L/Volumes/DISC/Radio App/Running copy/WR1.9/WunderRadio/MMS/build/MMS.build/Release-iphoneos/libmms.build/Objects-normal/armv6" "-L/Volumes/DISC/Radio App/Running copy/WR1.9/WunderRadio/MMS/build/MMS.build/Release-iphoneos/libmms.build/Objects-normal/armv7" "-L/Volumes/DISC/Radio App/Running copy/WR1.9/WunderRadio/MMS/build/Release-iphoneos" "-L/Volumes/DISC/Radio App/Running copy/WR1.9/WunderRadio/../../../Compiled frameworks MMS and ffmpeg/WR1.9/MMS/build/Release-iphoneos" "-L/Volumes/DISC/Radio App/Running copy/WR1.9/WunderRadio/../../.." "-L/Volumes/DISC/Radio App/Running copy/WR1.9/WunderRadio" -F/Users/sreekumar/Library/Developer/Xcode/DerivedData/WunderRadio-akpvnvqfzqleafaxhbibliqszxbp/Build/Products/Release-iphoneos -filelist /Users/sreekumar/Library/Developer/Xcode/DerivedData/WunderRadio-akpvnvqfzqleafaxhbibliqszxbp/Build/Intermediates/WunderRadio.build/Release-iphoneos/WunderRadio.build/Objects-normal/armv6/WunderRadio.LinkFileList -dead_strip -ObjC -Wl --allow-multiple-definition -all_load -miphoneos-version-min=3.0 -framework MessageUI -framework Foundation -framework UIKit -framework CoreGraphics -framework SystemConfiguration -framework AudioToolbox -framework QuartzCore -framework MediaPlayer -weak_framework AVFoundation -framework CoreLocation -framework CFNetwork -lffmpegLib -llibmms -lCommon -lz -o /Users/sreekumar/Library/Developer/Xcode/DerivedData/WunderRadio-akpvnvqfzqleafaxhbibliqszxbp/Build/Intermediates/WunderRadio.build/Release-iphoneos/WunderRadio.build/Objects-normal/armv6/WunderRadio
  
  
  
  ld: warning: directory not found for option '-L/Volumes/TUNEAGE/Projects/Debug-iphoneos'
  
  ld: warning: directory not found for option '-L/Volumes/TUNEAGE/Projects/Debug-iphonesimulator'
  
  ld: warning: ignoring file /Volumes/DISC/Radio App/Running copy/WR1.9/Common/build/Release-iphonesimulator/libCommon.a, file was built for archive which is not the architecture being linked (armv6)
  
  ld: duplicate symbol _fourxm_decoder in /Volumes/DISC/Radio App/libffmpegLib.a(4xm.o) and /Volumes/DISC/Radio App/libffmpegLib.a(4xm.o) for architecture armv6
  
  collect2: ld returned 1 exit status
  
  Command /Developer/Platforms/iPhoneOS.platform/Developer/usr/bin/gcc-4.2 failed with exit code 1    

  So I think anybody of you may be successfully compiled and used this. If yes please give me some instructions to do this.

  Or if you can find the solution for the error. please let me know.