[FFmpeg-user] ffmpeg/ffserver h264 webcam streaming

[Ricardo Mota]

Thank you for your help Moritz, I tried your suggestion and I can say it
works.

I'm now trying to implement the same thing but using webm streaming, with
the same configuration, just replacing the format and VideoCodec:

*<Stream test.webm>              # Output stream URL definition*
*   Feed feed1.ffm              # Feed from which to receive video*
*   Format webm*

*   # Audio settings*
*   NoAudio          *

*   VideoCodec libvpx*
*   VideoSize 1280x720           *
*   VideoFrameRate 25          *
*   AVOptionVideo flags +global_header  *
*   AVOptionVideo cpu-used 0*
*   AVOptionVideo qmin 10*
*   AVOptionVideo qmax 42*
*   AVOptionVideo quality good*
*   AVOptionVideo me_range 16*
*   AVOptionVideo qdiff 4*
*   AVOptionAudio flags +global_header*
*   PreRoll 15*
*   StartSendOnKey*
*   VideoBitRate 1M*
*</Stream>*

but when i try to run it with *ffmpeg -f v4l2 -input_format rawvideo
-pixel_format yuyv422 -framerate 25 -video_size 1280x720 -i /dev/video0
http://localhost:8090/feed1.ffm <http://localhost:8090/feed1.ffm>*, i get
the following error:


   - http://pastebin.com/Z0ePhx3N




On Tue, Oct 28, 2014 at 11:02 AM, Moritz Barsnick <barsnick at gmx.net> wrote:

> On Mon, Oct 27, 2014 at 20:52:13 +0000, Ricardo Mota wrote:
> > I'm trying to setup a h264 streaming from my webcam to the web using the
> > following configuration file for ffserver.
>
> >    - ffserver.conf <http://pastebin.com/ig74S0Zq>
>
> For reference, here is one relevant part:
>
> <Stream test.mp4>              # Output stream URL definition
>    Feed feed1.ffm              # Feed from which to receive video
>    Format mp4
>
>    # Audio settings
>    NoAudio
>
>    VideoCodec libx264
>    VideoSize 1280x720
>    VideoFrameRate 25
>    AVOptionVideo flags +global_header
>    AVOptionVideo cpu-used 0
>    AVOptionVideo qmin 10
>    AVOptionVideo qmax 42
>    AVOptionVideo quality good
>    AVOptionVideo me_range 16
>    AVOptionVideo qdiff 4
>    AVOptionAudio flags +global_header
>    PreRoll 15
>    StartSendOnKey
>    VideoBitRate 1M
> </Stream>
>
> > *[mov,mp4,m4a,3gp,3g2,mj2 @ 0x7f9d680008c0] Format
> mov,mp4,m4a,3gp,3g2,mj2
> > detected only with low score of 1, misdetection possible!*
> > *[mov,mp4,m4a,3gp,3g2,mj2 @ 0x7f9d680008c0] moov atom not found*
> > *http://localhost:8090/test.mp4 <http://localhost:8090/test.mp4>:
> Invalid
> > data found when processing input*
>
> It seems this is an FAQ. Most answers hint that mp4 is not a suitable
> format, despite "flags +global_header".
>
> If you replace the above config with flv:
> <Stream test.flv>
>    Feed feed1.ffm
>    Format flv
> [...]
>
> and access the appropriate URL with ffplay
> (http://localhost:8090/test.flv), it works fine (for me).
>
> Moritz
> _______________________________________________
> ffmpeg-user mailing list
> ffmpeg-user at ffmpeg.org
> http://ffmpeg.org/mailman/listinfo/ffmpeg-user
>



-- 
Ricardo Frederico Leote Mota

<http://www.fct.unl.pt/>
Mestrado Integrado em Engenharia Electrotécnica e de Computadores - Nº 25154

<http://artica.cc/>
*http://artica.cc <http://artica.cc/>*  *faceboo**k*
<https://www.facebook.com/pages/ArticaCc/196701617031031?ref=br_tf>  *blog
<http://artica.cc/blog/>*  *youtube <https://www.youtube.com/user/articacc>*
Embedded, Robotics and Control Systems Engineer @ Artica CC

We transform emerging technologies and art into *meaningful* human
experiences.
Artica digs electronics, education, robots, digital fabrication,
prototyping, and all things creative.

E-Mail : ricardoflmota at gmail.com
Phone : (+351) 92 442 19 71
Skype : rfl.mota

<http://www.facebook.com/ricardoflmota>
<https://plus.google.com/106404227708624298408/posts>