FFmpeg h264 preset crf comparison 2020 pt1 (fasts)
This comprehensive FFmpeg encoding comparison includes H.264 and H.265 HEVC from the fastest preset ultrafast through to veryslow with CRF values from 20 to 30. The posts will be split…
Tag: Video
Overlay frame number on video with FFmpeg
Watermarking a video with the current frame number using FFmpeg. This method involves using the video filter option with the frame_num. For this, I had Arial.ttf sitting in the root…
Crusoe Reservoir from drone
Crusoe Reservoir Bendigo from drone. The clear water on a sunny day gives a good look at the underwater growth, which cannot be seen from ground level.
Mount Alexander Harcourt drone images and video
Mount Alexander at Harcourt Victoria drone images and video.
Lake Eppalock Wirilda Bay drone images and video
Lake Eppalock Wirilda Bay late spring drone images and video. Click images to view larger.
What is Aspect ratio?
Aspect ratio is the relationship between the width and height of an image or video dimensions. Aspect ratio is expressed by 2 numbers separated by a semi-colon. The most popular…
FFmpeg upscale or downscale with auto ratio
Scaling video with FFmpeg can be done with defined width and height like: ffmpeg -i input.mp4 -vf scale=1920×1080 output_1080p.mp4 Assuming that my video is 16:9 ratio like 1280×720. However if…
Kow Swamp drone images and video
Kow Swamp when full in its massive scale has scores of dead timber rising out of the murky water providing an offbeat landscape. Here are Kow Swamp drone images, with…
Malmsbury Reservoir teeming again
After seemingly what was not a genuinly wet Winter, certain Central Victorian Reservoirs are going into Summer with plenty of water. Malmsbury Reservoir is at 81% compared to previous times…
How to stream mp4 video to YouTube with FFmpeg
Here is a method to live stream a mp4 video file to YouTube with FFmpeg. There are many configuration options but here is what i found works best. Read the…