Problem when encoding mjpeg video with rgb555 pixel format

classic Classic list List threaded Threaded
2 messages Options
Reply | Threaded
Open this post in threaded view
|

Problem when encoding mjpeg video with rgb555 pixel format

Gahide, Jerome (J.)
Hello all,

I'm trying to convert mpeg video to mjpeg with rbg555 . ( Sorry if it is an
often asked question )

Ffmpeg version : "SVN-r11553" , 2008-01-18-win32

I exec the command line :
./ffmpeg -i entryVideo.avi -vcodec mjpeg -pix_fmt rgb555 -s 640x480
jlr_640x480_mjpeg.avi
While converting, I have a trace telling that the format used for the output
will be yuv...

When I try to read the output_1280x480.avi video with mplayer , I get in the
debug console :

Playing
D:\mplayer\ffmpeg\ffmpeg-export-2008-01-18-win32\jlr_640x480_mjpeg.avi.
AVI file format detected.
[aviheader] Video stream found, -vid 0
AVI: No audio stream found -> no sound.
VIDEO:  [MJPG]  640x480  24bpp  25.000 fps  3471.9 kbps (423.8 kbyte/s)
Clip info:
 Software: Lavf52.4.0
==========================================================================
Opening video decoder: [ffmpeg] FFmpeg's libavcodec codec family
Selected video codec: [ffmjpeg] vfm: ffmpeg (FFmpeg MJPEG decoder)
==========================================================================
Audio: no sound
Starting playback...
VDec: vo config request - 640 x 480 (preferred colorspace: Planar YV12)
VDec: using Planar YV12 as output csp (no 3)
Movie-Aspect is undefined - no prescaling applied.
VO: [directx] 640x480 => 640x480 Planar YV12


I have tried with many others options -vtag -f , but I have never succeded.
It is important for me to be able to play a video of a small size in rbg555
mode as rgb555 is mandatory on my target plateform and my memory limited.

1/ - Is it possible with ffmpeg to generated a mjpeg / rbg555 file ?
2/ - If yes, what is the set of options to use in order to succed in this ?
3/ - If no, can someone redirect me on a free mjpeg encoder that is able to
build mjpeg rgb 555 file.

Can someone help me on this please as I am stalled.

Thanks in advance,
Jerome.

_______________________________________________
ffmpeg-user mailing list
[hidden email]
https://lists.mplayerhq.hu/mailman/listinfo/ffmpeg-user
Reply | Threaded
Open this post in threaded view
|

Re: Problem when encoding mjpeg video with rgb555 pixel format

Yohann Martineau-2
Le mardi 01 avril 2008 à 11:47 -0400, Gahide, Jerome (J.) a écrit :
> Hello all,
>
> I'm trying to convert mpeg video to mjpeg with rbg555 . ( Sorry if it is an
> often asked question )
>
> Ffmpeg version : "SVN-r11553" , 2008-01-18-win32

too old, I won't read the end of your mail.


_______________________________________________
ffmpeg-user mailing list
[hidden email]
https://lists.mplayerhq.hu/mailman/listinfo/ffmpeg-user