Timeline for what graphics card features effect NVIDIA NVENC hardware encoding speed?
Current License: CC BY-SA 4.0
14 events
| when toggle format | what | by | license | comment | |
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| Aug 14, 2018 at 11:34 | history | edited | Ivan Kolesnikov | CC BY-SA 4.0 |
fixed grammar and update answer with useful info for 2018
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| Mar 30, 2016 at 0:40 | comment | added | user255406 | I have an i7 3770k in a Hackintosh. Guess I'll boot from a live USB and try running QS on it to see how it fares. I hope the Broadwell-E CPUs to be released in June will support QS. | |
| Mar 28, 2016 at 7:17 | comment | added | Ivan Kolesnikov | Unfortunately, I haven't real work experience with QS, but some sources from Intel says what QT faster than NVENC in a four times. | |
| Mar 27, 2016 at 3:22 | comment | added | user255406 | Have you any experience with QS? I've been looking for overhead/delay examples with QS to no avail. | |
| Mar 22, 2016 at 12:08 | comment | added | Ivan Kolesnikov | You can try QuickSync in this case: intel.com/content/dam/www/public/us/en/documents/white-papers/… | |
| Mar 22, 2016 at 11:44 | comment | added | user255406 | Unfortunately the clips will be uploaded sporadically, sometimes a bunch, sometimes a few. I'm leaning towards a CPU only solution as this seems to be fool proof. | |
| Mar 21, 2016 at 6:49 | comment | added | Ivan Kolesnikov | Then you can to find out a maximum possible NVENC threads and always maintain it or you can try to run new FFmpeg instance if the maximum number of streams will be exceeded then will be occurs the following error: "Error while opening encoder for output stream #0:0 - maybe incorrect parameters such as bit_rate, rate, width or height". | |
| Mar 21, 2016 at 6:48 | comment | added | Ivan Kolesnikov | Unfortunately, I don't have experience with multiple short clips. One idea: you need maintain maximum possible NVENC threads. It will be faster then on CPU. For this you need to use variant with many transcoding streams in parallel for this need to buy QUADRO video card or go to the hack way. | |
| Mar 20, 2016 at 14:46 | vote | accept | user255406 | ||
| Mar 20, 2016 at 14:45 | comment | added | user255406 | Thanks for your answer. After some testing I realized that the overhead time it takes to initiate the transcoding becomes a huge issue with multiple short clips. Have you experienced this? I'm seeing maybe 1s/clip overhead. When my clips take average 1s/clip to transcode using CPU only, the GPU benefit vanishes. Thoughts? | |
| Mar 18, 2016 at 13:23 | review | Late answers | |||
| Mar 19, 2016 at 8:18 | |||||
| Mar 18, 2016 at 13:12 | history | edited | Ivan Kolesnikov | CC BY-SA 3.0 |
deleted 5 characters in body
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| Mar 18, 2016 at 13:08 | review | First posts | |||
| Mar 18, 2016 at 13:52 | |||||
| Mar 18, 2016 at 13:04 | history | answered | Ivan Kolesnikov | CC BY-SA 3.0 |