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• Availability of WebM (VP8) Video Hardware IP Designs

  10 janvier 2011, par noreply@blogger.com (John Luther)

  Hello from the frigid city of Oulu, in the far north of Finland. Our WebM hardware development team, formerly part of On2 Technologies, is now up-to-speed and working hard on a number of video efforts for WebM.
  

  • VP8 (the video codec used in WebM) hardware decoder IP is available from Google for semiconductor companies who want to support high-quality WebM playback in their chipsets.
  • The Oulu team will release the first VP8 video hardware encoder IP in the first quarter of 2011. We have the IP running in an FPGA environment, and rigorous testing is underway. Once all features have been tested and implemented, the encoder will be launched as well.

  WebM video hardware IPs are implemented and delivered as RTL (VHDL/Verilog) source code, which is a register-level hardware description language for creating digital circuit designs. The code is based on the Hantro brand video IP from On2, which has been successfully deployed by numerous chipset companies around the world. Our designs support VP8 up to 1080p resolution and can run 30 or 60fps, depending on the foundry process and hardware clock frequency.

  The WebM/VP8 hardware decoder implementation has already been licensed to over twenty partners and is proven in silicon. We expect the first commercial chips to integrate our VP8 decoder IP to be available in the first quarter of 2011. For example, Chinese semiconductor maker Rockchip last week demonstrated full WebM hardware playback on their new RK29xx series processor at CES in Las Vegas (video below).
  

  
  Note : To view the video in WebM format, ensure that you’ve enrolled in the YouTube HTML5 trial and are using a WebM-compatible browser. You can also view the video on YouTube.

  Hardware implementations of the VP8 encoder also bring exciting possibilities for WebM in portable devices. Not only can hardware-accelerated devices play high-quality WebM content, but hardware encoding also enables high-resolution, real-time video communications apps on the same devices. For example, when VP8 video encoding is fully off-loaded to a hardware accelerator, you can run 720p or even 1080p video conferencing at full framerate on a portable device with minimal battery use.

  The WebM hardware video IP team will be focusing on further developing the VP8 hardware designs while also helping our semiconductor partners to implement WebM video compression in their chipsets. If you have any questions, please visit our Hardware page.

  Happy New Year to the WebM community !

  Jani Huoponen, Product Manager
  Aki Kuusela, Engineering Manager

  

• FFmpeg audio capturing from mic is not working properly

  5 mars 2013, par Thirumalai murugan

  I am using the ffmpeg-20130205-git-c2dd5a1-win64-static version, I am trying to capture the audio and video and send it to the FMS server, I have tried with the following code initially

  ffmpeg -r 25 -f dshow -i video="Logitech HD Pro Webcam C920":audio="Rear Input (SoundMAX Integrated Digital High Definition Audio)" -vcodec libx264 -b:v 600k -b:a 128k -f flv rtmp://127.0.0.1/live/mystream

  it through the following error

  [dshow @ 00000000023f8920] Could not find audio device.
  
  video=Logitech HD Pro Webcam C920:audio=SoundMAX Integrated Digital High Definit
  
  ion Audio): Input/output error

  Then I modified the code as follows its working fine

  ffmpeg -f dshow -i video="Logitech HD Pro Webcam C920":audio="Rear Input (SoundMAX Integrated" -b:v 600k -acodec libmp3lame -b:a 128k -f flv rtmp://127.0.0.1/live/mystream

  I am unable to understand why its not accepting the full name of the audio driver and if I use the libx264 with the Logitech HD Pro Webcam C920 its not giving the video, video is blank (note : while using the iball c2.0 camera I am able to get the video)

  what is the wrong in my code ? how to publish in the libx264 format ?

• Mux a regular file into Mpeg TS

  2 août 2016, par JFrez

  im working in a file broadcasting method using mpeg2-ts and ISDB-T ( Integrated Services Digital Broadcasting - Terrestial), My problem is that im not being able to to put a file into the data stream, or as rawvideo, or anithing inside the mpeg-ts.... im using ffmpeg and avconv. Here is an example of a test :

  ffmpeg -f mpegts -i Myfile.tgz -probesize FILESIZE -mpegts_original_network_id 0x1 -mpegts_transport_stream_id 0x1 -mpegts_service_id 0x25 -mpegts_pmt_start_pid 0xbb9 -mpegts_start_pid 0xbba -metadata service_provider="FILESSERVER" -metadata service_name="FILES" -muxrate 16M output.ts