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2017-07-21 06:34:27 -0600 received badge  Popular Question (source)
2016-10-05 09:21:52 -0600 asked a question H264 encoding

I'm using opencv with ffmpeg to create h264 videos from my opencv project.

But the result video is not playable in quicktime or in webbrowser.

When i analyse this video with ffmpeg it say:

[mp4 @ 0x1ae05e0] pts has no value

I tried many things to correct this: change opencv version, edit AVCodecContext in cap_ffmpeg_impl.hpp before compilation to add compression parameters etc....

Nothing work :(

Any idea?


2014-02-28 08:06:16 -0600 asked a question CPU<->GPU equivalent function

Hi, i'm working on a GPU version of my code, but i can't find any way to do an equivalent of the transform() function on GPU. I use this function to apply a 4x4 Mat on an opencv Mat to make it b&w,sepia,etc.... Is there a way to do this on GPU? Thanks

2013-09-16 10:05:05 -0600 received badge  Editor (source)
2013-09-10 07:31:06 -0600 asked a question opencv+ffmpeg+x264

Hi! I have a problem when i try to create a video with FOURCC X264.Opencv returns an error because ffmpeg defaut preset is broken. I tried to edit these presets but no luck, that doesn't work.

I've installed ffmpeg with -enable-x264, opencv works right, ffmpeg also (even if i encode a video with x264 codec),but no way to make it works with opencv->x264 by ffmpeg

Any idea?