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10 de mar. de 2022 · Simply go the the end of the string, type a semicolon (;), then paste in the path. Click Ok on all the windows we just opened up. Just to be sure, reboot your computer before trying any commands. FFmpeg is now "installed". The Command Prompt will now recognize FFmpeg commands and will attempt to run them.
22 de abr. de 2016 · I've tested lot of solutions and software. I love cli commands, so using ffmpeg you can fix your video file with no hassle. Try the next command if you came here searching some useful fix: ffmpeg -vcodec mpeg4 -b:v 7561k -qscale:v 2 -acodec aac -ac 2 -async 1 -strict experimental ./video_fixed.mp4 -threads 0 -i damage_file.mp4 Good luck 😃!
13 de ago. de 2012 · See FFmpeg Wiki: H.264 Video Encoding Guide for more info. Instead of cropping and re-encoding, consider cropping upon playback. This is possible with any player worth using. Ancient ffmpeg builds used -croptop, -cropbottom, -cropleft, -cropright options instead of the crop filter. If this is the case for you then get a modern ffmpeg.
How is ffmpeg used with a video filter circa 2017 to adjust gamma/contrast, brightness and saturation? Stack Exchange resources that are a few years old point to the filter mp=eq2=, but it seems to be deprecated 1 and replaced with just eq=. The link does not reveal a good understanding of the setting ranges, however.
The defaults depends on the encoder. libx264 is usually used for MP4 output by default, and it produces a nice quality output with no additional options, but the ffmpeg build in the question appears to not support this encoder and therefore uses the ancient encoder mpeg4 producing MPEG-4 Part 2 video, and the defaults for it were more sane during its heyday (such as for 320x240, etc).
22 de ago. de 2017 · I have many videos and I need to put an image in front of them for about 5 seconds, but adding it manually and rendering it each time would take really long, so I am asking if it is possible to do so via ffmpeg and if you could, please, help me out with it since I have no experience with ffmpeg.
ffmpeg pixel format names (ffmpeg -pix_fmts) don't just specify an arrangement, they map to an exact bit arrangement, and thus each format+bit-depth combo has a different name. I think you were expecting -pix_fmt yuv422p to mean "convert to 422 in the same bit depth as my input".
8 de abr. de 2018 · When I am simply copying a.MOV (from my iPhone) to c.MOV, FFmpeg drops a lot of metadata, including the time and location of the video. I tried -metadata, but FFmpeg still drops the information. It seems that the metadata is not dropped when FFmpeg prints Output #0, but is dropped when I use ffprobe to see metadata of the output file.
It also has presets to make it easy to use without fiddling with settings for days. nnedi can be 4x slower or more if you turn off the prescreener--which is not suggested because it gains you little. Otherwise, ffmpeg's default nnedi slowed my overall job by only 25% vs bwdif default. Without QTGMC, nnedi is slightly better than bwdif.
Your code tells ffmpeg to generate a H264 video stream using the x264 encoder, and the options below are used by the encoder to decide keyframe placement. -x264opts "keyint=24:min-keyint=24:no-scenecut". keyint=24 tells x264 to forcibly generate a keyframe 24 frames after the last keyframe. min-keyint=24 sets the minimum keyframe distance.
