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• Alternative to ffmpeg for iOS

  6 mai 2012, par resident_

  I've been trying to implement ffmpeg in my ios app several weeks. And now I can play several avi files, but other files like a flv, wma, mp4... play slow.

  I have spent much time with ffmpeg and opengl and I don't find solution.

  I'm looking other alternatives to play this files on ios device.

  Someone know other libraries, frameworks, ... that I can use to play this files. No matter if they have business licenses.

  Very thanks,

  Edited :

  Init Shader :

   shader = [[GLShader alloc] initWithFileName:@"render" attributes:[NSDictionary dictionaryWithObjectsAndKeys:
  
                                                                                               [NSNumber numberWithInt:0], @"position",
  
                                                                                               [NSNumber numberWithInt:1], @"texCoords", nil]
  
                                           uniforms:[NSDictionary dictionaryWithObjectsAndKeys:[NSNumber numberWithInt:0], @"sampler0",
  
                                                                                               [NSNumber numberWithInt:0], @"viewProjectionMatrix",nil]];

  render.fsv :

  uniform sampler2D sampler0;
  
  varying highp vec2 _texcoord;
  
  void main()
  
  { gl_FragColor = texture2D(sampler0, _texcoord);}

  render.vsf :

  attribute vec4 position;
  
  attribute vec2 texCoords;
  
  varying  vec4 colorVarying;
  
  varying vec2 _texcoord;
  
  uniform mat4 viewProjectionMatrix;
  
  
  
  void main()
  
  {   _texcoord = texCoords;   
  
  gl_Position = viewProjectionMatrix * position;}

  How I can implement your solution in this code ?

• android MediaPlayer alternative for rtsp streaming

  28 janvier 2014, par tulkas85

  I need to a multi viewer in my app, each view in a gridlayout must show a video from a camera that streaming over rtsp.

  I try using Android VideoView and MediaPlayer, but results does not satisfy me, I have much latency for starting video, and compatibility problems using Lg L9 phone (see my question here )

  I search a lot for 3rd party sdk , and I found Vitamio, but it not support multi-views in same activity (there is a bug). Another commercial sdk is Nexstreaming but not works on rtsp protocol.
  I not found nothing else. Do you know others ?

  Using NDK could be another way to do it, so I seen for Gstreamer (tutorial) but it seems too complicated. Another way could be FFMPEG, but I have not found a definitive guide for it.

  Any help ?

• lavc/internal : Constify AVPacket* in AVCodecInternal.

  26 février 2017, par Carl Eugen Hoyos

  lavc/internal : Constify AVPacket* in AVCodecInternal.
  Fixes a gcc warning :
  
  libavcodec/utils.c:2244:26 : warning : assignment discards ’const’ qualifier from pointer target type [-Wdiscarded-qualifiers]
  

  • [DH] libavcodec/internal.h
  • [DH] libavcodec/utils.c