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CHANGELOG.md

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Older versions

0.18.1

  • Fixed some issues with Ubuntu 20 LTS, for example this one: not using pkg-config to find python libs anymore
  • Tested with latest live555 version: required a small fix & openssl dependencies

0.18.0

  • Extra copy / caching step added to sharedmem client side
  • API level 2 shmem client modified (mysterious crashes due to re-creating RGBMeta cpp type at python side maybe solved)
  • Fragmented mp4 progressing (not yet production level)
  • Migrating ppa support to Ubuntu 18 LTS and 20 LTS only

0.17.5

  • Discovery now with both WSDiscovery & arp-scan

0.17.4

  • WSDiscovery now included into libValkka

0.17.0

  • Timestamps now taken from decoder! This means that "main" and "high" H264 profiles with B-frames work. This should also eliminate some "stuttering" effects seen sometimes in live video.
  • "Exotic" bitmaps (YUV422 and other) are now transformed to YUV420, so, for example profiles such as "high422" work (however, this is inefficient, so users should prefer YUV420P streams)

0.16.0

  • Yet another memleak at the shmem server side fixed
  • Some issues with the python shmem server side fixed

0.15.0

  • A nasty memory overflow in the shared memory server / client part fixed
  • Added eventfd to the shared mem server / client API. Now several streams can be multiplexed with select at client side
  • Sharing streams between python processes only implemented
  • Forgot to call sem_unlink for shared mem semaphores, so they started to cumulate at /dev/shm. That's now fixed

0.14.1

  • Minor changes to valkkafs

0.14.0

  • Muxing part progressing (but not yet functional)
  • python API 2 level updates

0.13.2 Version

  • Extracting SPS & PPS packets from RTSP negotiation was disabled..!
  • Now it's on, so cameras that don't send them explicitly (like Axis) should work

0.13.1 Version

  • Matroska export from ValkkaFS, etc.
  • Lightweight OnVif client

0.12.0 Version

  • Shared memory frame transport now includes more metadata about the frames: slot, timestamp, etc. Now it also works with python multithreading.
  • Numpy was included to valkkafs in an incorrect way, this might have resulted in mysterious segfaults. Fixed that.
  • At valkka-examples, fixed the multiprocessing/analyzer example (fork first, then spawn threads)

0.11.0 Version

  • Bug fixes at the live555 bridge by Petri
  • ValkkaFS progressing
  • Currently Ubuntu PPA build fails for i386 & armhf. This has something to do with the off_t datatype ?

0.10.0 Version

  • Nasty segmentation fault in OpenGL part fixed: called glDeleteBuffers instread of glDeleteVertexArrays for a VAO !
  • ValkkaFS progressing

0.9.0 Version

  • H264 USB Cameras work

0.8.0 Version : "Say Yolo again"

  • Added bounding boxes to OpenGLThread API
  • Tested Valkka Live with YOLOv3 object detection
  • Started sketching USB camera thread and ValkkaFS

0.7.1 Version

  • Small fix in the python part valkka.api2 (in managed filterchain)

0.7.0 Version : "One namespace to rule them all"

  • Switched to python namespace packaging

0.6.0 Version

  • etc

0.5.4 Version

  • Python API-level 2 : A managed filterchain that handles streams on-demand between processes

0.5.3 Version

  • Woops .. there was no regression but a nasty bug with the use of stl containers
  • .. works fine now, after I followed the "rule of four" (ctor, dtor, copy-ctor and copy-assignment)

0.5.2 Version

  • Fixed a small bug: smart timestamp correction is again the default
  • Weird regression here: segfault with intel gfx drivers with 5+ streams. Problem with the latest intel driver?

0.5.1 Version : "Videowalls"

  • Multi-GPU works

0.5.0 Version : "Halfway to Beta"

  • Live rendering very solid

0.4.7 Version

  • Can change receiving socket size and Live555 reordering buffer
  • etc.

0.4.6 Version

  • Background texture when no stream is coming through
  • Weird bitmap sizes work
  • TestThread class for sending (PyQt) signals from cpp
  • etc.

0.4.4 Version

  • RTSP server works

0.4.3 Version

  • Now reads acc in addition to annex b h264

0.4.0 Version : "The Rewrite"

  • A complete rewrite of the library
  • (documentation might lag a bit behind..)

0.3.6 Version

  • Sending multicast works

0.3.5 Version : "10 x 1080p cameras running for a week"

  • Stable! GPU direct memory access needed rubbing in the right way (..or did it?)
  • Lots of fixes ..
  • Reading / writing from/to matroska container

0.3.0 Version name : "It was all about the vblank"

  • Several full-HD cameras now streaming OK
  • Interoperability with python multiprocesses (and from there, with OpenCV)
  • For benchmarking, testing and demos see the "valkka-examples" repository

0.2.1 Version

  • License change (to APGL)
  • Added python level 2 api example
  • Miscellaneous fixes

0.2.0 Version name : "Christmas 2017 project"

  • Software interpolator filter (yuv => rgb interpolation in the CPU)
  • Shared memory bridge for python inter-process communication
  • Python level 2 api
  • Just committed this one : documentation and packages will be updated soon :)

0.1.0 Version name : "Proof of concept"

  • Initial git commit: core system, live streaming to X-window system