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• How to generate SDP file from FFMPEG

  20 novembre 2016, par MobilityLab

  So, I have been working with FFMPEG on a project that involves streaming video from one computer to another across the internet with RTP. I want to take that into ffmpeg and use ffserver to display it on a local network.

  As I understand it, you need to have a SDP information so that the receiving ffmpeg instance can interpret the RTP stream. Despite what webpages say, I can not find the SDP information in the information printed to the console.

  How can I force the transmitting ffmpeg instance to output the SDP information so that I can use it to configure my receiving end ?

  Right now, I am testing on Windows 7, but the final solution will be on linux.

  The command I’m running for testing is

  ffmpeg -fflags +genpts -i files\2005-SFSD-sample-mpeg1.mpg -threads 0 -r 10 -g 45
  
  -s 352x240 -deinterlace -y 2005.mp4 -an -threads 0 -r 10 -g 45 -s 352x240 
  
  -deinterlace -f rtp rtp://192.168.200.198:9008

  My ffmpeg information is...

  ffmpeg version 0.8, Copyright (c) 2000-2011 the FFmpeg developers built on Jun 23 2011 14:22:23 with gcc 4.5.3 
  
  configuration: 
  
  --disable-static  
  
  --enable-shared 
  
  --enable-gpl  
  
  --enable-version3 
  
  --enable-memalign-hack  
  
  --enable-runtime-cpudetect 
  
  --enable-avisynth 
  
  --enable-bzlib 
  
  --enable-frei0r 
  
  --enable-libopencore-amrnb 
  
  --enable-libopencore-amrwb 
  
  --enable-libfreetype 
  
  --enable-libgsm 
  
  --enable-libmp3lame 
  
  --enable-libopenjpeg 
  
  --enable-librtmp 
  
  --enable-libschroedinger 
  
  --enable-libspeex 
  
  --enable-libtheora 
  
  --enable-libvorbis 
  
  --enable-libvpx 
  
  --enable-libx264 
  
  --enable-libxavs 
  
  --enable-libxvid 
  
  --enable-zlib 
  
  --disable-outdev=sdl 
  
    libavutil    51.  9. 1 / 51.  9. 1 
  
    libavcodec   53.  7. 0 / 53.  7. 0 
  
    libavformat  53.  4. 0 / 53.  4. 0 
  
    libavdevice  53.  1. 1 / 53.  1. 1 
  
    libavfilter   2. 23. 0 /  2. 23. 0 
  
    libswscale    2.  0. 0 /  2.  0. 0 
  
    libpostproc  51.  2. 0 / 51.  2. 0 

• VLC libx264 streaming muxed as FLV

  24 mars 2012, par Jan Novák

  I have a question on streaming output of libx264. My scenario is that Iam capturing video from webcam, encoding with x264 and then streaming data to flash, muxed as FLV. For muxing, Im using output/flv_bitstream.h, included in libx264 budle. The only modification of muxer, that I made, is that instead of fwrite() im usig send() to transfer data via socket... Encoding library is working fine. If I save output (even muxed), vlc player is able to play it. But, when it goes to data transfer via socket, vlc and flash are not cooperating. The weird thig is, that if Im sending data to vlc player thru socket, it waits till transmission end and then plays video from buffer. But what I need is to play live stream.

  I also tryed to read flv file and send it to vlc of flash tag by tag and it is working fine.

  Any suggestions ?

• Museum of Multimedia Software, Part 2

  16 août 2010, par Multimedia Mike — Software Museum

  This installment includes a bunch of old, discontinued Adobe software as well as some Flash-related mutlimedia software.

  Screen Time for Flash Screen Saver Factory
  "Create High Impact Screen Savers Using Macromedia Flash."

  
  
  

  Requirements include Windows 3.1, 95 or NT 3.5.1. A 486 computer is required to play the resulting screensavers which are Flash projectors using Macromedia Flash 3.0.

  Monster Interactive Instant GUI 2
  Create eye-popping GUIs more easily for use in Flash. Usability experts would argue that this is not a good thing.

  
  
  

  Adobe Dimensions 3.0
  "The Easy Yet Powerful 3D Rendering Tool." This software was end-of-life’d in late 2004-early 2005 (depending on region).

  
  
  

  Adobe ImageStyler
  "Instantly add style to your Web site." Wikipedia claims that this product was sold from 1998 to 2000 when it was superseded by Adobe LiveMotion (see below).

  
  
  

  Google is able to excavate a link to the Latin American site for Adobe ImageStyler, a page that doesn’t seem to be replicated in any other language.

  Adobe LiveMotion
  "Professional Web graphics and animation." This is version 1, where the last version was #2, released in 2002.

  
  
  

  Adobe Streamline 4.0
  "The most powerful way to convert images into line art." This was discontinued in mid-2005.

  
  
  

  Adobe SuperATM
  "The magic that maintains the look of your documents." This is the oldest item in my collection. A close examination of the back of the box reveals an old Adobe logo. The latest copyright date on the box is 1992.