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• ffmpeg windows - combine multiple videos in folder and subfolders into one video [closed]

  21 décembre 2020, par Kirill

  I have Xiaomi security camera which is saving videos with length of 3 sec.
So I have such structure of my full day capture :
Folder with name of date, for example 20201221, that contains subfolders with hours (00 ; 01 ; 02 ; ... ; 23 ;), each of these folders contains subfolders with minutes (00 ; 01 ; ... ; 59 ;), each of them contains 20 mp4 video files with 3 seconds duration.
I need to generate one mp4 video of whole day with help of ffmpeg and windows 10 command line.
Can someone help me to do these ?
Thank you !

  


• avcodec/mediacodecdec : add workaround for buggy amlogic mpeg2 decoder

  26 avril 2018, par Aman Gupta

  avcodec/mediacodecdec : add workaround for buggy amlogic mpeg2 decoder
  I tested the previous mediacodec changes on seven different Android
  
  TV devices, with both mpeg2 and h264 content. All except one worked
  
  as expected. The exception was the MiBox3 running Android 6.0.1,
  
  where playback would freeze on a frame every few seconds. I tested
  
  two other AMLogic devices with newer Android versions that did not
  
  show the same problem. H264 decoding on the MiBox3 was also not affected,
  
  so this workaround applies only to OMX.amlogic.mpeg2.decoder.awesome
  
  on Android API22.
  There is a rumor that Xiaomi is planning to release Android Oreo for
  
  the MiBox3, so I will revisit in a few months to confirm whether this
  
  is specific to os/driver version or the chipset used in that device.
  Signed-off-by : Aman Gupta <aman@tmm1.net>
  
  Signed-off-by : Matthieu Bouron <matthieu.bouron@gmail.com>
  

  • [DH] libavcodec/mediacodecdec.c

• Video recorded using Kurento is corrupted

  10 avril 2023, par Pranjal Lamba

  We are using Kurento media server v6.6.1 to record a video conference. The web app client which runs on Chrome(Windows, OSX, Android) is using a modified version of one-to-one-call-advanced Kurento sample and the second client is an Android native application which is using Nubomedia webrtcpeer v1.1.1. Nubomedia webrtcpeer uses LibJingle built by io.pristine v11139(released on December 2015). The video and audio is recorded in two separate recorder endpoints by Kurento.

  


  Video conference recordings generated using web app client/s are working properly. But sometimes the video generated using native application contains all the frames within initial few seconds. Please find below download link for the problematic video generated by our Android native application,

  


  https://drive.google.com/file/d/1vOVk8hPuP_iOlQfsmMoqZLhICy-Jpcee/view?usp=sharing

  


  We are testing this feature on a range of Android devices, Nexus 5(Android 6.0.1), Nexus 6(Android 7.1.1), Sony Xperia Z Tablet(Android 6.0.1), Samsung Galaxy Tab A(Android 5.0), OnePlus 3(Android 7.1.1), Xiaomi A1(Android 7.1.1). The issue randomly starts occurring on a bunch of these devices while the others work properly and vice-versa.

  


  We are recording the videos with the following constraints,

  


  Web app client

  


  Minimum video width : 32
  
Minimum video height : 32
  
Maximum video width : 320
  
Maximum video height : 320
  
Minimum framerate : 1
  
Maximum framerate : 15
  
Video container format : MP4
  
Video codec : H.264
  
Audio codec : AAC

  


  Android native client

  


  Minimum video width : 32
  
Minimum video height : 32
  
Maximum video width : 480
  
Maximum video height : 640
  
Minimum framerate : 1
  
Maximum framerate : 25
  
Video container format : MP4
  
Video codec : H.264
  
Audio codec : Opus