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Angelo Lama | 16 May 00:10
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Invitation à se connecter sur LinkedIn

LinkedIn
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MEncoder,

J'aimerais vous inviter à rejoindre mon réseau professionnel en ligne, sur le site LinkedIn.

Angelo

Angelo Lama
Enseignant chez Education Nationale
Région du Havre , France

Veuillez confirmer que vous connaissez Angelo Lama :
https://www.linkedin.com/e/-2v2nly-h29imzal-3i/isd/7111244847/3kb4JGOT/?hs=false&tok=2ETnAUru4i35g1

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Sebastian | 12 May 20:27
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Adding subtitles during live tv:// (Webcam) recording

Hi,

I want to record a Webcam picture and add a OSD (Subtitles) to the recorded video. the text is generated by a
measurement device, and I can convert it into the format which is necessary.

Greetz from Munich

Sebastian
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Graham Lawrence | 5 May 16:14
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Accolade

No problem, this is a note of appreciation.  I've just completed my
first encode driven by "goddammit, this time I am going to get it
right!", and the result is fantastic. The avi is visually superior to
the ISO it was encoded from, more detailed, and I've compared them
frame by frame.  True, I can bring out that detail in the ISO too by
fiddling with the brightness and contrast in mplayer, but with the avi
I don't need to.  What an excellent app, can't thank you guys enough.

Graham Lawrence
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Wietze | 5 May 13:40
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M4V to WMV out of sync

Hi Everyone,
When transcode a M4V video file to a WMV, the resulting WMV is out-of-sync.
The audio gradually going out of sync with the video. I'm only having this
problem with M4V files.

I'm using the following mencoder command:
	"input.mp4" -of lavf -lavfopts format=asf -vf harddup -ovc lavc -oac
lavc -lavcopts
acodec=wmav2:vcodec=wmv2:autoaspect:keyint=25:vqscale=2:vqmin=2:aglobal=1:vg
lobal=1  -mc 0 -ofps 25 -o "output.wmv"

While transcoding, I get the following warning several times:
	[wmv2 @ 012521a0]warning, clipping 1 dct coefficients to -255..255

The properties of input.mp4:
	> General
	Format                                   : MPEG-4
	Codec ID                                 : M4V 
	File size                                : 415 MiB
	Duration                                 : 53mn 15s
	Overall bit rate                         : 1 090 Kbps
	Encoded date                             : UTC 2012-05-03 22:06:07
	Tagged date                              : UTC 2012-05-03 22:58:38

	> Video
	ID                                       : 1
	Format                                   : AVC
	Format/Info                              : Advanced Video Codec
	Format profile                           : Baseline <at> L3.0
	Format settings, CABAC                   : No
(Continue reading)

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L. Lee | 5 May 05:51
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Transcode to 30 fps yields regular frame repeat pattern

I used my typical pullup routine on a 60 fps interlaced video that resulted
in lots of duplicate frames, so I suspected faulty telecining for the
source. Next I tried feeding it to ffmpeg specifying -r 29.97 and
-deinterlace. I expected to see duplicates of every 5th frame, but what I
found was a pattern of thirteen with duplicates at 5, 10, and 13. Does that
identify the original frame rate of the source video? Normally the sources I
capture are originally 24 fps, what could the original frame rate of this
source be? Thanks.

Laine Lee
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Sylvester 4 | 4 May 05:23
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How important are B-frames?

How important are B-frames and does a video really need them?

"MEncoder's libavformat muxing is presently broken and can generate
INCORRECT files in the presence of B-frames. Moreover, due to bugs MPlayer
will play these INCORRECT files as if nothing were wrong!"

If I encode using -of lavf, the above is displayed.  So, I would set
bframes=0 thinking this must be the correct procedure.  But I am now
wondering if a video is suffering in quality due to zero B-frames in
the video.

Also, in MPEG-2 files, I notice they have - 99% of the time - BVOP.  I
think I remember it stands for bidirectional video object plane.  Is
this just another name for B-frames?
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Ivano Arrighetta | 1 May 12:39
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filter automation and gui

Hello everyone, I have 2 questions on MenCoder:
1) Is it possible to change filter parameters while something is going?
(may be something like an edit decision list for filter parameters)
2) Is there a good GUI for Windows like KMenc?

Thanks in advance
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Rossana Guerra | 29 Apr 21:02
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Re: insert an image - overlay image

thanks so much, I'll take a look.

Regards,

Rossana

2012/4/29 eolinwen <at> gmail.com <eolinwen <at> gmail.com>

> Hi,
>
> You could do this operation too with Transcode and his plugin/filter logo.
> See here how to do that :
> http://www.transcoding.org/transcode?Filter_Plugins/Filter_Logo
> Obviously, you must have installed transcode, transcode-doc and
> transcode-utils.
>
> Regards.
>
> 2012/4/29 Rossana Guerra <guerra.rossana <at> gmail.com>
>
> > thanks, I am trying with it.
> >
> > Regars
> >
> > Rossana
> >
> > 2012/4/28 Carl Eugen Hoyos <cehoyos <at> ag.or.at>
> >
> > > Rossana Guerra <guerra.rossana <at> gmail.com> writes:
> > >
(Continue reading)

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Rossana Guerra | 27 Apr 10:12
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insert an image - overlay image

Hello, I am a truly beginner, I recently installed Mencoder, I need to set
a logo onto an .AVI file.
I read many examples but I couldn't then work properly. I tryed what is
said here
http://www.linuxjournal.com/content/overlay-images-video-using-mplayer-and-mencoder

From console I did this:

logo = ...

mkfifo tfifo
# Convert logo to RGBA.
convert $logo tlogo.rgba

# Copy logo to fifo.(echo "RGBA32 $logo_width $logo_height 0 0 0 1" ;
cat tlogo.rgba ) >tfifo &

but it got frozen, I need to abort the command.

 # Convert input video with overlay from fifo.
mencoder -oac pcm -ovc raw -vf bmovl=0:0:tfifo -o $output_video $input_video

Thanks in advance for any help. Regards

Rosg
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Gabri Nurtinaz Shally | 13 Apr 20:33
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multiple option declaration

i usually encoding video like this
mencoder -profile x264 -x264encopts bitrate=800 -x264encopts pass=1

i'm using batch file so thus multiple option is necessary.
but sometimes ago, i forgot which revision, after updating mplayer, thus
batch not working anymore, i can't control the bitrate anymore.
it's looks like the second option replace the first one completely, not
merged.
knowing it, i change my batch file so that thus two option merged into one.
mencoder -profile x264 -x264encopts bitrate=800:pass=1

but now, after using revision 34401, thus batch file not working again. it
seems the command line argument, replace completly option defined in
profile x264 that i write in mencoder.conf
what happend? do i have to rewrite my batch file again, putting thus long
line i defined in mencoder.conf?
or there is something i didn't know?

thanks for replying.
btw, i'm using sherpya's build from oss.netfarm.it
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Bill Crockett | 12 Apr 04:07
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-rawvideo size option does not work.

-rawvideo <option1:option2:...>

Available options are:

fps=<value>

         rate in frames per second (default: 25.0)

sqcif|qcif|cif|4cif|pal|ntsc

         set standard image size

w=<value>

         image width in pixels

h=<value>

         image height in pixels

i420|yv12|yuy2|y8

         set colorspace

format=<value>

         colorspace (fourcc) in hex or string constant. Use -rawvideo 
format=help for a list of possible strings.

size=<value>
(Continue reading)

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Gmane