I have tried to use the video encoder with the C API and everything works fine.
I also wanted to try the DirectShow filter. I was succsessfully building a graph where all pins are connected and the run call returns no error. In the graph I use the Haali Media Splitter as input and as destination filter. The encoder filter itself is configured to H.264. When I start the application I can see CPU and GPU load at a high level. So something is done. The only problem is that no output file is produced. I use the same parameters as I use with the C API.
Has anyone an idea what could be the problem. I found no other filter that accepts the output stream than the Haali Media Splitter.
Has anyone tested the filter successfully?
The API manual tells “However, it can be used in a test application…”. Is this only a virtual test application? I can not find any sample code for this (C API or the DirectShow filter).
Hey, I am not going to answer your question… (coz, I dont know) But I am interested to know what is the kind of “speedup” you are observing… Did you measure PSNR?
Thanks for any info…
Hey, I am not going to answer your question… (coz, I dont know) But I am interested to know what is the kind of “speedup” you are observing… Did you measure PSNR?
Thanks for any info…
The speed factor depends on the profile/level combination and toolset used (e.g. if you use sliced encoding or CABAC/CAVAL). Using the high profile on a 720x576 (PAL D1) video I get a 260fps on a GTX460 and a Q6600@2.4GHz.
I have not measured the SNR of the output. I did a visual (perception) comparison with x264 (50fps) using 1MBit/s. The visual impression of the x264 output is much better.
Because I am not so interested in the C API I have not done further tests. I will continue after I get the DirectShow version working.
The speed factor depends on the profile/level combination and toolset used (e.g. if you use sliced encoding or CABAC/CAVAL). Using the high profile on a 720x576 (PAL D1) video I get a 260fps on a GTX460 and a Q6600@2.4GHz.
I have not measured the SNR of the output. I did a visual (perception) comparison with x264 (50fps) using 1MBit/s. The visual impression of the x264 output is much better.
Because I am not so interested in the C API I have not done further tests. I will continue after I get the DirectShow version working.
Help me please with encoder. I create graph and it work, but stream .264 file what writted - large and not compress and have a bugs on viewing (after pushing in avi container)
Graph:
AsyncReader → AviSplitter → DMOWrapper → NVEncoder → FileWritter.
Thanks for all. DXEncoder.rar (2.36 MB)