Newest 'libx264' Questions - Stack Overflow

Les articles publiés sur le site

• Is it possible to force I_PCM mode in x264 ?

  10 octobre 2012, par cloudraven

  I need to use I_PCM mode in all blocks for some of I frames in video being compressed using x264. I know those frames will take a huge amount of space, but it is a requirement to keep them as faithful to the source as possible and to make them very fast to encode / decode (I_PCM should be super fast and lossless). Is there a way to force x264 to programatically do this. I am using libx264 to do this, but I haven't found a way to specify custom macroblock type within a given frame. If it is not supported, how hard would it be to modify the library to do so and where should I look at first?

• Linking FFmpeg against libx264 while using -fwhole-program

  5 octobre 2012, par Philos

  If I compile libx264 using -fwhole-program then go to compile ffmpeg without using -fwhole-program and then link it against ffmpeg will that cause a compiler issue? (and vice versa)

  Likewise, could doing that cause a performance hit even if it doesn't cause a compiler issue?

• How do I build ffmpeg including x264 library for android ?

  27 septembre 2012, par user1093191

  Lots of question and answer available on the ffmpeg and android. But I did not get thing that directly address ffmpeg building with x264 library.

  Actually I want to make a movie from some still images in android.

  Still do not get any solution to resolve this problem. Some of the forum told that it can be do using ffmpeg. If I build ffmpeg after downloading from "http://bambuser.com/opensource", it works fine to decode a video file. But it does not get any codec while it try to encode still image into movie.

  That's why I try to use x264 as encoding library with ffmpeg. While I try to build it with ffmpeg it returns error.

  Could you please provide any detail step by step guide line to build ffmpeg with x264 library in windows or mac for android?

  If any one knows anything other that can be used to make movie from still images in android please tell me the way. Your help will be highly appreciated.

  Thank you in advance for your kind response.

• h264 global header

  23 septembre 2012, par user1558688

  I need to process an incoming h264 stream from an external server.

  This stream is composed by h264 frames with sps / pps information.

  I need to "strip" this information out and pass the data along to the receiver.

  How can I do this ?

• flv file (with 264 video stream) cannot be decoded.

  5 septembre 2012, par Hong

  I have generate an flv file using libx264. It only contains video tags and some meta data. It can be played by ffmpeg, however, most commercial players cannot decode it.

  The file is at, http://www.kuaipan.cn/file/id_3690055512098762.htm, the livestream_test.flv.

  Very thanks if you know any possible errors in the file, I'm really confused now.