Reverted move of x11grab video input to left side of pipe#12
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rfht merged 1 commit intorfht:masterfrom Nov 14, 2025
Merged
Reverted move of x11grab video input to left side of pipe#12rfht merged 1 commit intorfht:masterfrom
rfht merged 1 commit intorfht:masterfrom
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…as causing raw video data to be passed through the pipe, resulting in very poor framerate. Kept restructuring of variables to build ffmpeg options/arguments. Issue rfht#10
This was referenced Oct 5, 2025
Contributor
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can confirm. this fixes the low quality issue on my machine with vaapi and without |
Contributor
Author
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@Izder456 Many thanks for testing and confirming, especially both with and without VA-API! |
rfht
approved these changes
Nov 14, 2025
Owner
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Thanks for the find! |
Owner
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To explain where this came from - the move of x11grab to the left side of the pipe was an attempt to grab video and audio at the same time in the hopes that this would fix the desync issues. It looks like that was not the solution, and mainly led to video quality impairment. |
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This resolves the regression of video quality (see issue #10), which I found to occur even when not using VA-API.
Specifically, it reverts the move of x11grab video capture to left side of pipe. My hypothesis is that this causes the raw video data to be passed through the pipe, to then be encoded on the other side, resulting in lots of extra memory reads & writes before encoding, and manifesting as very poor frame rate. It does keep the nice new restructuring of variables to build ffmpeg options/arguments.