[FFmpeg-user] FFMPEG sample example does not work!

Lou lou at lrcd.com
Wed Jun 28 02:07:45 EEST 2017

On Tue, Jun 27, 2017, at 02:25 PM, Davood Falahati wrote:
> Dear community,
> I am doing a video processing project with opencv and I have to read and
> write video/audio streams with ffmpeg. I found the ffmpeg-output-example
> useful, but I had a tough time to update it (I don't know the code is not
> updated while some parts of the code is deprecated!). I have uploaded my
> working code in:
> https://github.com/falahati1987/video/blob/master/ffmpeg-example.cpp
> When I run the code, I get the following error:
> [libx264 @ 0xee2400] broken ffmpeg default settings detected
> [libx264 @ 0xee2400] use an encoding preset (e.g. -vpre medium)
> [libx264 @ 0xee2400] preset usage: -vpre <speed> -vpre <profile>
> [libx264 @ 0xee2400] speed presets are listed in x264 --help
> [libx264 @ 0xee2400] profile is optional; x264 defaults to high
> My sample video specifications is :
> Output #0, mov, to '/home/dfalahati/Videos/melissa.MOV':
>     Stream #0:0: Video: h264, yuv420p, 352x288, q=2-31, 400 kb/s, 25 tbc
>     Stream #0:1: Audio: aac, 44100 Hz, 2 channels, 64 kb/s
> And I am using ffmpeg 2.8.11 on Ubuntu 16.04. I have not compiled ffmpeg
> from source.
> can anybody help me?

Wrong mailing list. ffmpeg-user is questions involving the FFmpeg cli
tools (ffmpeg, ffplay, ffprobe, ffserver). Usage questions involving the
FFmpeg libraries should be asked at libav-user.

That being said, you are using the 2.8 branch but apparently you are
using code and Doxygen from the 0.6 branch.

I believe output-example.c was renamed to doc/examples/muxing.c.

If you have more questions please ask at libav-user.

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