[FFmpeg-user] Video Encoding MPEG4-PART2-SP

[Maryam Moghadas]

Dear All,

I want to encode the raw video sequences compatible with MPEG4 Part 2
Simple Profile. I want to turn the half pel ME and IAC On and Off from the
encoder to see their effect in the decoded video sequences. I use the
following command for encoding, but I do not know default values for the
options that I am going to turn on or off. Would you please let how should
I change the command in order to include the halfpel and IAC being on and
off?

ffmpeg -s qcif -pix_fmt yuv420p -vframes 300 -i ~/Downloads/akiyo_qcif.yuv
-vcodec libxvid -f rawvideo -s qcif -aspect 11:9 -bf 0 -b 1024k -r 30
-vframes 30 ~/Downloads/akiyo_qcif.bit

Thank you,

Maryam

[Carl Eugen Hoyos]

Post by Maryam Moghadas
ffmpeg -s qcif -pix_fmt yuv420p -vframes 300 -i ~/Downloads/akiyo_qcif.yuv
-vcodec libxvid -f rawvideo -s qcif -aspect 11:9 -bf 0 -b 1024k -r 30
-vframes 30 ~/Downloads/akiyo_qcif.bit

(Unrelated: I don't think there is an input option vframes)

FFmpeg supports two ASP encoder:
One is "-vcodec mpeg4", you get support here.
One is "-vcodec libxvid", you should probably ask on
the xvid mailing list, ask here if you want to know
how to map a xvid option to ffmpeg command line.

It may make no real-word difference, but the muxer for
MPEG-4 ASP elementary stream is called "m4v".

In any case: Complete, uncut console output missing.

Carl Eugen

[Maryam Moghadas]

Thank you, What is the address of the libxvid mailing list?
Moreover, using -vcodec mpeg4, how should I map the options halfpel and
iAc on the ffmpeg command line, both for enabling and disabling them?

Maryam

Post by Maryam Moghadas

Post by Maryam Moghadas
ffmpeg -s qcif -pix_fmt yuv420p -vframes 300 -i

~/Downloads/akiyo_qcif.yuv

Post by Maryam Moghadas
-vcodec libxvid -f rawvideo -s qcif -aspect 11:9 -bf 0 -b 1024k -r 30
-vframes 30 ~/Downloads/akiyo_qcif.bit

(Unrelated: I don't think there is an input option vframes)
One is "-vcodec mpeg4", you get support here.
One is "-vcodec libxvid", you should probably ask on
the xvid mailing list, ask here if you want to know
how to map a xvid option to ffmpeg command line.
It may make no real-word difference, but the muxer for
MPEG-4 ASP elementary stream is called "m4v".
In any case: Complete, uncut console output missing.
Carl Eugen
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[Salim Shaikh]

Dear Sir,

I am Salim Shaikh