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FFmpeg FAQ
https://ffmpeg.org/faq.html
3.14.4 Concatenating using raw audio and video. Similarly, the yuv4mpegpipe format, and the raw video, raw audio codecs also allow concatenation, and the transcoding step is almost lossless. When using multiple yuv4mpegpipe(s), the first line needs to be discarded from all but the first stream.
Libav documentation : Libav FAQ:
https://libav.org/faq.html
Similarly, the yuv4mpegpipe format, and the raw video, raw audio codecs also allow concatenation, and the transcoding step is almost lossless. When using multiple yuv4mpegpipe (s), the first line needs to be discarded from all but the first stream. This can be accomplished by piping through tail as seen below.
video - ffmpeg determine correct codec to use - Stack …
https://stackoverflow.com/questions/27783703/ffmpeg-determine-correct-codec-to-use
You have to use raw video, in a yuv4mpegpipe container format. Additionally, to have the same framerate, the fps filter is needed, and the -an flag is used so the output video will not have an audio track. The following command line should produce the desired result: ffmpeg -i small.mp4 -vf fps=7.5 -an -f yuv4mpegpipe -y small.y4m
OS/X yuv4mpegpipe/yuv420p corruption
https://ffmpeg-devel.ffmpeg.narkive.com/GDx3Om98/os-x-yuv4mpegpipe-yuv420p-corruption
It's not that simple. yuv4mpeg is a format, not a codec, it accepts rawvideo as a coded stream, which doesn't have any pix_fmt by itself, but piggybacks on input streams one. Somehow, I got this ideas that formats shouldn't be messing with codec parameters, especially when they are output ones. So in a way, setting pix_fmt is a right thing to do.
FFmpeg UHD encoding (piping to x265 ... - Stack Overflow
https://stackoverflow.com/questions/41131834/ffmpeg-uhd-encoding-piping-to-x265
Using a pipe. You didn't provide any output from ffmpeg. When piping you can use - as the output. ffmpeg -i input.mov -f yuv4mpegpipe - | x265 --y4m - -o output.265. The input is MOV, so this container has the pixel format, size, and frame rate info included, so you can omit all of your input options. Also, as Andrey mentioned in a comment, you ...
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