// Oprogramowanie Roman Ryltsov
To complete the set of posts [1, 2, 3] on hardware video encoding at lowest latency settings, I am sharing the juiciest part and the application for NVIDIA NVENC. I did not have a 20 series card at hand to run the measurement for the numbers, and I hope the table below for GeForce GTX…
In continuation of previous AMD AMF encoder latency at faster settings posts, side by side comparison to NVIDIA encoders. The numbers are to show how different they are even though they are doing something similar. The NVIDIA cards are not high end: GTX 1650 is literally the cheapest stuff among Turing 16xx series, and GeForce…
A follow-up observation about encoders of Radeon RX Vega M GH Graphics of Hades Canyon NUC and the measurement app from the previous post: The side by side comparison with desktop RX 570 card shows a few interesting things: Radeon RX Vega M GH Graphics has the latest driver, but AMF runtime version is way…
Just a small tool here to try a few of a popular resolutions and measure video encoding latency. The encoder is running in configuration to address needs of real-time encoding with speed over quality setup. Note that the performance might be affected by side load, such as graphics application (I often use this application for…
It is embarrassing, my friends…
Another problem (bug) with Microsoft Media Foundation MPEG-4 Media Source H.265/HEVC handler is that it ignores conformance_window_flagflag and values from H.265’s seq_parameter_set_rbsp (see H.265 spec, F.7.3.2.2.1 General sequence parameter set RBSP syntax). The problem might or might not be limited to fragmented MP4 variants. It is overall questionable whether it has been a good idea…
H.265 / HEVC Video Decoder Media Foundation has been around for a while, but using Media Foundation overall one step off straightforward basic paths is like walking a minefield. A twenty-liner below hits memory access violation inside IMFTransform::GetInputStreamInfo “Exception thrown at 0x6D1E71E7 (hevcdecoder.dll) in MfHevcDecoder01.exe: 0xC0000005: Access violation reading location 0x00000000.”: #include “stdafx.h” #include <mfapi.h>…