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https://community.adobe.com/t5/media-encoder/how-to-render-alpha-rgb-with-h-264-format/td-p/7338598
You can render your RGB and alpha (matte) channel separate from each other, that way you can get away with pretty small file sizes. H264 does not support integrated alpha channels, even prores only does that in 4444 quality.
https://sourceforge.net/p/megui/feature-requests/455/
The new colormodes should be integrated in the x264 config too. (Because x264 doesnt just read RGB now, it even can output it this way.) @zerosinner: If you don't have checkmarked lossless RGB Capture in Fraps it records in YUY2 colorspace, not YV12.
http://www.chaneru.com/Roku/HLS/X264_Settings.htm
x264 calculates a metric for every frame to estimate how different it is from the previous frame. If the value is lower than scenecut, a 'scenecut' is detected. An I-frame is placed if it has been less than -- min-keyint frames since the last IDR-frame, otherwise an IDR-frame is placed.
https://stackoverflow.com/questions/40407887/encoding-rgb-frames-using-x264-and-avcodec-in-c
I have RGB24 frames streamed from camera and i want to encode them into h264 ,i found that AVCodec and x264 can do so, the problem is x264 as default accepts YUV420 as input so what i wrote was a program which convert RGB frames to YUV420 .that was by sws_scale function .this works well except that it does not satisfy the required FPS because the converting (RGB->YUV420) takes time.
https://forum.videohelp.com/threads/380991-ffmpeg-x264-RGB-to-YUV
Nov 02, 2016 · So after hours of searching for a solution, correct me if I am wrong, but it seems that it is just not possible to encode an RGB image sequence (with a baked in gamma curve, not linear) to h.264 using either ffmpeg libx264 or x264 without incurring a color shift. If someone knows of a way, I am all ears because the workaround is a massive pain.
https://forums.guru3d.com/threads/general-explanation-of-full-rgb-and-tvs-that-support-it.365595/
Feb 14, 2017 · HDTV's (Rear-projection HDTV's and projectors support it, but have no way to switch between limited and full) DO support full range RGB (its a sub-requirement of the HDMI specification that requires all HDMI-compliant TV's to support the RGB colorspace in compatibility with DVI) its just that your off-brand insignia,Dynex, Emerson, Etc. brand TV's don't have a menu option to switch …
http://www.ffmpeg-archive.org/Pixel-Formats-for-libx264-td4661012.html
Pixel Formats for libx264. What pixel format, if any, does the x264 codecs convert video to before encoding? If my source video is raw RGB (3 bytes per pixel), will the encoded video use the same pixel...
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http://forum.doom9.org/showthread.php?t=168999
Oct 17, 2013 · I don't think ffmpeg libx264 can encode RGB (and you will have lossess during the RGB=>YUV conversion). You can use use some other lossless RGB codec in ffmpeg eg.. FFV1 or UTvideo which also supports RGB I was going to suggest piping ffmpeg to x264, but yuv4mpegpipe doesn't support RGB either (not aware of any rgb4mpegpipe)
https://video.stackexchange.com/questions/13164/encoding-422-in-10-bit-with-libx264
x264 supports both 8-bit and 10-bit outputs, and you don't have to do anything special. ffmpeg. If using ffmpeg you can see what pixel formats and bit depths are supported by libx264: $ ffmpeg -h encoder=libx264 [...] Supported pixel formats: yuv420p yuvj420p yuv422p yuvj422p yuv444p yuvj444p nv12 nv16 nv21 yuv420p10le yuv422p10le yuv444p10le nv20le
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