- #Ffmpeg compress video size bit rate mp4#
- #Ffmpeg compress video size bit rate pro#
- #Ffmpeg compress video size bit rate software#
It's not unsual for PP to esimate my output size at under 100 megs then output a file 8 or 9 times that size. Of course, this issue is compounded by the grossly inaccurate estimated output size. I really would have appreciated a Node.JS library for that 1 like Reply Jul 14 19 I know, what you mean. The only thing I found that works is to radically reduce the frame size, but then I have a much smaller video in which the slides cannot be read, and the file size is still 2-3 times the original size. Also, I struggled with the ffmpeg option to make my webm version keep a good visual quality and reducing the weight (came up with a crf of which divide the original video size by apoximatively 2, and a slight lesser quality but it is fine. There must be some way to get PP to output roughly the same file size as my original files?
#Ffmpeg compress video size bit rate software#
I now use other software to trim my videos and save without re-encoding, but this doesn't help if I have to make a small edit. One solution could probably be to target sizes smaller (-0. I've been battling this issue for a couple of years and really haven't found a suitable resolution. The sizes Im aiming are relatively small (8mb wanted compared to 50mb original) and when Im trying to compress video by inputting the calculated bitrate according to the guide into ffmpeg the result sometimes overshoots the target size and its not fine for me. FFmpeg Compress Video by Cutting Titles of Videos Part 4.
#Ffmpeg compress video size bit rate mp4#
FFmpeg Compress MP4 by Reducing the Bitrate of Video Part 3. When I have a folder with multiple sessions and most of them are under 100 megs then I have a file that is 750 megs and all I did was blur out a single word on a slide, or add a quick title, or in some cases, I just trimmed a little off the front without making any changes or additions. FFmpeg Resize Video by Re-encoding Video with Advanced Codecs Part 2.
Obviously, the output file size is just not acceptable. To compress for web at a reasonable broadband bitrate of about 1.5Mbps video / 128kbps audio: ffmpeg -i source.mp4 -c:v libx264 -b:v 1.5M -c:a aac -b:a 128k target. Now, if it's just about bitrate, explain why this is the case when I choose the lowest possible bitrate setting (0.19) and the lowest frame rate (10).
#Ffmpeg compress video size bit rate pro#
The audio quality is clear enough for the purpose.īut, if I do ANY kind of edit in premiere pro and try to output again, I typically get a file of 900 megs down to as low as 750 megs. Certainly not suitable for a movie, but for a webinar with slides, it's very reasonable: the frame size is nice and large, and you can read the text on the slides just fine. For example for a target size of 1 GB (one giga byte, which is 8 giga bits) and 10 000 seconds of video (2 h 46 min 40 s), use a bitrate of 800 000 bit/s (800 kbit/s): ffmpeg -i input.mp4 -b 800k output. They are about an hour long 2650x1440 frames witih reasonable quality and the files are about 70-90 megs when I get them. Calculate the bitrate you need by dividing your target size (in bits) by the video length (in seconds).
I regularly have to edit webinar recordings from Zoom webinar. I've seen this suggestion in many places, but you know, it doesn't really resolve the issue.
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