// Oprogramowanie Roman Ryltsov
MainConcept’s MP4 Demultiplexer in Annex B mode looks, well… slightly excessively broken. H.264 media type with start codes (H264 FourCC, but here they use legacy subtype informally known as MEDIASUBTYPE_H264_bis) do not require parameter sets as a part of MPEGVIDEOINFO2 structure. If they however decided to provide the NAL units, they have to be RLE…
Logitech’s C930e camera is the first one to be compliant with UVC 1.5 specification: First 1080p HD webcam to support H.264 with Scalable Video Coding and UVC 1.5 encoding technology. […] The result is a smoother video stream in applications like Skype for Business and Microsoft® Lync® 2013. More marketing information there at Logitech. More…
A blog reader asked an interesting question a question about H.264 support in Lync. There have been a number of announcements on H.264 integration with multiple pieces of software: HD Video in Lync 2013 Q&A Microsoft Lync 2013 Video and H.264 UVC 1.5 Encoding Offloading Webcams Skype for Business client video requirements C930e with Lync…
To follow up previous post with Media Foundation bug, here goes another one related to property handler for MPEG-4 files (.MP4) and specific property PKEY_Video_FrameRate which reports frame rate for given media file. This is the object responsible for filling columns in explorer, or otherwise visually the bug might look like this: The values of the properties are…
More charts on libx264. Is it true to assume that it takes longer to encoder higher quality (lower rate factor in CRF mode) content? The figures answer that yes, indeed:
As libx264 has so many presets and tunes, I was curious how they all related one to another when it comes to encode video info H.264. I was more interested in single pass encoding for live video, so the measurements are respectively for this mode of operation with encoder running in CRF (constant rate factor,…
A feed coming from Beward BD4370D Megapixel IP camera: DESCRIBE rtsp://ipaddress/h264 RTSP/1.0 CSeq: 2 User-Agent: Alax.Info RTSP Streamer Module/1.0.0.774 Accept: application/sdp RTSP/1.0 200 OK CSeq: 2 Date: Tue, Jun 29 2010 01:50:09 GMT Content-Base: rtsp://ipaddress/h264/ Content-Type: application/sdp Content-Length: 645 v=0 o=- 1277694477005767 1 IN IP4 0.0.0.0 s=Session streamed by “nessyMediaServer” i=h264 t=0 0 a=tool:LIVE555 Streaming…