raw mpeg to mjpeg transcoding using the gstreamer plugin

[Matt Pekar]

You'll first need to clarify whether you're trying to construct an MJPEG
stream (which is usually transported over HTTP), or a sequence of JPEG
files on your file system.  They are two different things.

If you need a sequence of files, try using the multifilesink element:

http://gstreamer.freedesktop.org/data/doc/gstreamer/head/gst-plugins-good-plugins/html/gst-plugins-good-plugins-multifilesink.html

Getting an mjpeg going is a bit more involved, and you can't do it using
gst-launch AFAIK.


On Thu, May 2, 2013 at 12:50 PM, <
gstreamer-devel-request at lists.freedesktop.org> wrote:
>
> ---------- Forwarded message ----------
> From: "Kalkere, Giridhara(IE10)" <Giridhara.Kalkere at Honeywell.com>
> To: "gstreamer-devel at lists.freedesktop.org" <
> gstreamer-devel at lists.freedesktop.org>
> Cc:
> Date: Thu, 2 May 2013 17:34:27 +0000
> Subject: raw mpeg to mjpeg transcoding using the gstreamer plugin
>
> Hello, ****
>
> ** **
>
> Greetings….! This is my first post to the mailing list. ****
>
> ** **
>
> I am working on a multimedia project where I wanted to convert the raw
> mpeg4 stream into mjpeg images. ****
>
> ** **
>
> I have little knowledge on the gstreamer framework with that I have formed
> a pipeline.****
>
> ** **
>
> Little background. ****
>
> I have IP camera which I have recorded in the raw mpeg format. ****
>
> For some reason I want to convert them into bunch of images. (if I have
> recorded for 1 min @10FPS  = 600 jpeg images)****
>
> ** **
>
> To begin with I took raw mpeg4 file of 1 second duration which is recored
> @1FPS (to generate 1 jpeg image)****
>
> The following pipelines I have used. Could able to generate images but its
> corrupted. Attached images for your reference.****
>
> **1.       ***gst-launch filesrc location="/mnt/sd/365.m4v" ! decodebin !
> ffenc_mjpeg ! filesink location="/mnt/sd/1.jpeg"*****
>
> * *
>
> **2.       **This 9.jpeg is the one which I got when I tried using the
> 1min mp4 file. This is better than the pervious.****
>
> *gst-launch filesrc location="/mnt/sd/videofile0.mp4" ! decodebin !
> ffenc_mjpeg ! filesink location="/mnt/sd/9.jpeg"*
>
> * *
>
> I am sure some thing is not correct in the pipeline. ****
>
> Please help me to accomplish.****
>
> ** **
>
> Thanks and Regards,****
>
> Giri****
>
> ** **
>
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