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Hi Ernesto,<br>
<br>
I see that Chimera daily builds are incorrectly giving the option
"-qscale 8" to ffmpeg, the program included in Chimera that does the
movie encoding. The "-qscale 8" conflicts and apparently overrides
the "-b 5000kb" bit rate setting you requested. Both Chimera 1.5.3
and daily builds use qscale 8 which is variable bit rate encoding if
you do not specify bitrate. Recent changes to Chimera movie
defaults broke the movie quality handling. I have fixed it. The
fix will be in tonight's daily build, dated Jan 5 on the download
page<br>
<br>
<a class="moz-txt-link-freetext" href="http://www.cgl.ucsf.edu/chimera/download.html#daily">http://www.cgl.ucsf.edu/chimera/download.html#daily</a><br>
<br>
Thanks for identifying the problem.<br>
<br>
Tom<br>
<br>
<blockquote
cite="mid:CAMfeskBUA=G_2MRPiGU9GhNR9P2EGc-reoh8fdEeSVuJFZWNiw@mail.gmail.com"
type="cite">Hi everyone,<br>
<br>
I've made some movies using the current Chimera alpha version
(alpha version 1.6 build 35109, 2011-12-24) in an ubuntu 10.04
laptop. I've noticed that the quality of the movies is worse that
in the version 1.5.3, and I have generated the movies using the
same chimera session and the same script. I've seen this for at
least avi and mp4 formats. <br>
<br>
The movie options I'm using in the script are:<br>
<i>movie record supersample 3<br>
movie encode output movie.avi bitrate 5000 framerate 25 mformat
avi</i><br>
<br>
Does anybody know why the quality is worse in the newer Chimera
version?<br>
Thanks in advance,<br>
Ernesto.<br>
</blockquote>
<br>
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