3,737 reputation
324
bio website
location
age
visits member for 1 year, 10 months
seen 23 mins ago

Oct
14
comment How to work with R3D and RMD files? FFMPEG?
What software are you editing/working with usually?
Oct
12
comment FFmpeg MP4 to FLV too slow
edited the question to refelect that
Oct
12
comment FFmpeg MP4 to FLV too slow
Because the presets work very well with the settings they provide in that case crf 23. There is barely a reason to modify that value. Compression will increase with a higher preset even though the crf value is the same for all presets. I'm assuming amateur knowledge here, if you want do more you will not have to ask basic questions as you will very quickly discover how these (basic) settings actually work and will make your own fine tuned settings tailored to your content.
Oct
11
comment How do I change the audio on a H.264 MP4 without re-rendering the file?
You could endup with 2 audio stream though depending on how the original audio is mapped in the container and how ffmpeg handles this situation, it either creates a second audio stream or replaces the first when using -map 1.
Oct
11
comment How do I change the audio on a H.264 MP4 without re-rendering the file?
See amimciptimdim command for remuxing the .h264 into a new mp4. Instead of input.mp4 you provide the path to your myvideo.h264.
Oct
9
comment Why is MP4 black background gray in Internet Explorer 11?
Probably also hardware acceleration, my FF is not running with standard render settings. Nice find!
Oct
9
comment Why is MP4 black background gray in Internet Explorer 11?
Thats a hard nut. Something you can't really tell your users, they either ignore it or will be too lazy to do that or simply dont want to. There is also webm as an HTML5 alternative but thats not supported by IE. The only real alternative would be using Flash Player as its probably installed on most machines that primarily use IE.
Oct
9
comment Why is MP4 black background gray in Internet Explorer 11?
Well yes there is of course a conversion between RGB to YUV but it should still output a 100% black. What he describes in the video only really applys to uploading to Vimeo, he bascially tailored the file to the vimeo h264 encoder. What you can also try is to export your file as an Avi with HuffYUV encoding and see if that makes a difference.
Oct
9
comment Why is MP4 black background gray in Internet Explorer 11?
I guess you haven't use a command line tool before? Open a "Command Prompt" window and drag and drop the "ffmpeg.exe" into the cmd window. Then just use the command I posted but you can ommit the "ffmpeg" part. Then replace input.mov with the path to your mov and the same with output.mp4. You can drag and drop here aswell, just go to the right position with the text pointer and drag and drop the old input/output file into the cmd. Its actually very easy to use once you get the hang of it. Dont bother with the manual, look up online tutorials for the basics.
Oct
9
comment How do I make the DoTA 2 map work in Source Filmmaker?
What exactly is the message you get when loading a Dota 2 map?
Oct
8
comment Why is MP4 black background gray in Internet Explorer 11?
Yes thats a very similar issue but you shouldn't have different results in different browsers on the same machine. You probably downloaded the source code of ffmpeg. If you are on windows download here: ffmpeg.zeranoe.com/builds If you are on mac download here: evermeet.cx/ffmpeg Just download the 32bit static build.
Oct
8
comment Why is MP4 black background gray in Internet Explorer 11?
With Animation do you mean your video content or the codec? I would recommend to not use Avanti, its a horrible GUI for ffmpeg. You might want to try to just use ffmpeg itself with this command: ffmpeg -i input.mov -vcodec libx264 -preset slow -acodec copy -pix_fmt yuv420p output.mp4 Though note that ffmpeg/avanti and handbrake both use x264 as the encoder.
Oct
8
comment Why is MP4 black background gray in Internet Explorer 11?
Thats expected that these things don't show up in the mov, those are h264 specific flags. Handbrake just uses what it gets fed and the BT.601 color space is very likely set in your source codec. What codec are you using in you mov export? You might want to try the "Animation" codec and then try exporting with handbrake again. Also try the Normal and Android High preset this time (might need to adjust the resolution manually).
Oct
6
comment Zooming in on one layer in After Effects
Not really true, the camera control is far more intuitive with great manual control with the help of the camera control tool. No need to fiddle around with corner points and numbers.
Oct
6
comment Crop video in ffmpeg without re-encoding
True that might be a workaround but probably very hard to actually implement practiacally.
Oct
6
comment Crop video in ffmpeg without re-encoding
Interesting feature but sounds like a feature that probably has caused a lot confusions when a small resolution video is taking up huge amount of space because it was heavily cropped and you don't know why.
Oct
5
comment Zooming in on one layer in After Effects
Well thats exactly what I proposed without the pre-comping. The advantage of the pre-comp is that you don't alter the way your layers behave which can be irritating or unwanted behavior. But nice detailed explanation.
Oct
3
comment using a 265 encoded video with a container
You can try muxing it into mp4 instead, that might be better supported by ffplay.
Oct
1
comment Live stream from GoPro to YouTube or another video service
Yes, you will need a device that can encode the HDMI bitstream and start a web stream with a protocol compatible with YouTube. F.e. the one you linked.
Sep
27
comment How to have a non square video inside a video?
Any of the tools mentioned here will do this: video.stackexchange.com/questions/12208/…