Newest 'ffmpeg' Questions - Stack Overflow

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• How to solve Build fingerprint :'samsung/a5xeltexx/a5xelte:6.0.1/MMB29KB/A510Fx:user/release-keys' error in Android ?

  1er décembre 2016, par Virani Ashish

  Build fingerprint:'samsung/a5xeltexx/a5xelte:6.0.1/MMB29KB/A510Fx:user/release-keys
                                                                           Revision: "0"
                                                                           ABI "arm"
                                                                           pid 1716, tid 3690,name Thread-44811 >>> com.aspiration.gifmaker <<<
                                                                           Fatal signal 11 (SIGSEGV), code 1, (SEGV_MAPERR),fault addr 0x18
                                                                           r0 00000018 r1 00000010 r2 c01047f0 r3 00000088
                                                                           r4 c0104768 r5 00000000 r6 vv589v10 r7 c89f7190
                                                                           r8 00000000 r9 7fffffff s1 c89f7190 fp c89f706c
                                                                           ip c42dd180 sp c89f7008 lr bf8a71a8 pc c00b1d00 cpse 200f0010
  
                                                                           backtrace :
                                                                              #00 pc 008f2d00 /data/app/com.aspiration.gifmaker-1/lib/arm/libvideokit.so (av_log+20)
  

• FFmpegFrameRecorder add text / image while recording

  1er décembre 2016, par Tan Tran

  Does anyone know how to add text, image while recording video using FFmpegFrameRecorder from JavaCV? I have searched everywhere but got nothing

• Live video broadcasting in android using front and back facing cameras [on hold]

  1er décembre 2016, par Jun Kim

  This is my first time I am posting a question on Stack Overflow.

  I am currently developing an android application. My goal is to make an app that captures and records video and broadcasts it to other mobile devices as well as web browsers like facebook live. (Nowadays, famous apps like Youtube, Facebook, Twitch, Periscope has this function)

  Now, I am just researching what technologies and ways to develop this app.

  I have been researching and reading a lot of blogs and documentations for the past five weeks about FFMpeg, different types of streaming technologies, types of web servers etc. I decided to use MPEG-DASH for my app and nginx server (Nginx-rtmp-module).

  While searching further, I got stuck and confused about how I can possibly capture & record video using internal camera of Android mobile devices.

  I was thinking that I could use MediaRecorder to capture & record (I could hardly find an example using MediaRecorder to record video) and use FFMpeg to somehow encode with the certain video and audio codecs to make a container format and send it to nginx server to broadcast other devices. But then.... i am not sure if this is the right way to do it...

  My questions is... I would like to know the whole process (in detail if it possible) how I can possible record and broadcast to other devices.

  The whole process of recording video using internal camera that is in user's mobile device and send the frame to the server to broadcast to other devices seems difficult to imagine for me... Can anyone elaborate?

  Or any suggestion about how can I reach my goal? Every help would be appreciated.

• how to use the pts in fffmpeg

  1er décembre 2016, par Allan

  I have a library with can provide video data and PTS. The library head file Like this：

   /**
   * \brief           Write mirror video H.264 frame to player.
   * \param p_src     Pointer to source buffer.
   * \param size      H.264 frame size. (unit: byte)
   * \param ptsValue  PTS value.
   * \return          Copied size. (unit: byte)
   */
  int (*WriteMirrorVideoData)(const std::string& ip, const void *p_src, int size, double ptsValue);
  

  As you see, the library give me video frame buffer address and PTS.

  I use FFMpeg to decode video data correctly.

  My question is how to control the display time by ptsValue which provided by library.

  Did I need to set the ptsValue to AVFrame? then FFMPeg can control the display time itself. Or I need to control the display by my own code?

  I am a newer to FFMpeg. please help me. Thank you very much!

• Couldn't find platform family in Info.plist for dylib CFBundleSupported platforms or Mach-O LC_VERSION_MIN

  1er décembre 2016, par user2331687

  

  I have developed a App (Mac OS) and I want release it to Mac App Store, and my App use the FFMPEG library, so there are many .dylib (as you can see, for example, libSDL-1.2.0.dylib), when I upload my App, and I got this error, I have googled several days, but I don't know how to add the "platform family" to a .dylib, since the dylib is build from command line. Can anyone help me to solve this problem, thanks very much!