Recherche avancée

Sur d’autres sites (11255)

• How do I use -analyzeduration from ffmpeg with FFmpegDecoder.framework from mooncatventures ?

  29 décembre 2013, par user3143010

  I have been playing with the RtspPlay1 from mooncatventures to try and stream a live stream from an ffmpeg streaming source with as little delay as possible. The problem is even when I modify the code to indicate the -analyzedelay 0 flags in RtspPlay1 it does not seem to do anything. I came to this conclusion because the delay is the same on my computer without the -analyzeduration 0 flag as the iOS device. Any thoughts would be helpful.

  Here is the command I am trying to emulate on the iPhone :
  ffplay rtp :///224.1.1.1:11326 -analyzeduration 0

  Here is the modified code I tried with RtspPlay1 :

  forward_argc=1;
  
  
  
  forward_argv[1] = "-analyzeduration";
  
  forward_argv[2] = "0";
  
  //forward_argv[3] = "30";
  
  //forward_argv[4] = "-fast";
  
  //forward_argv[5] = "-sync";
  
  //forward_argv[6] = "video";
  
  //forward_argv[7] = "-drp";
  
  //forward_argv[8] = "-skipidct";
  
  //forward_argv[9] = "10";
  
  //forward_argv[10] = "-skiploop";
  
  //forward_argv[11] = "50";
  
  //forward_argv[12] = "-threads";
  
  //forward_argv[13] = "5";
  
  //argv[14] = "-an";
  
  forward_argv[3] = cString;
  
  
  
  NSLog(@"glflag %@\n ",[parms objectForKey:@"glflag"] );
  
  if ([parms objectForKey:@"glflag"]!=@"1") {
  
     forward_argv[4]="0";
  
  }else {
  
  forward_argv[4]="1";
  
  }
  
  
  
  
  
  forward_argc += 4;

• ffmpeg iOS and SDL2

  24 décembre 2015, par user3487978

  I created a app for iPhone, the core source is based on the latest ffplay.c, I just changed the rendering part to support iOS, general it can play video, but I found the quality is not as good as enough, see screenshot below, the first image is the what expected, the second is image that my app on iPhone produced, and the last the produced by my app on iPad.
  on the iPhone’s image, you can found there is a dash line, and the colour is not correct, it seems that there is a shadow of the image.
  I am new to ffmpeg, can anyone help me what is the problem

• AudioQueue bytes to ffmpeg understandable WAV format

  24 décembre 2015, par moeseth

  I got the recorded AudioQueueBufferRef buffer using the following code.

  NSData *data = [NSData dataWithBytes:inBuffer->mAudioData length:inBuffer->mAudioDataByteSize];

  And then, I send the data to my server. However, FFMPEG isn’t able to read that because the data is not in any audio standard format.

  It’s just plain data.

  So, how do I do either on iPhone or backend ffmpeg to convert that raw buffer to WAV ?

  Thank so much.