Displaying 7 results from an estimated 7 matches for "videoqu".
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2009 Oct 22
1
usage of --two-pass parameter with ffmpeg2theora?
Hello,
So far I used this command to convert video files:
ffmpeg2theora.linux --optimize --no-upscaling --videoquality 5 --audioquality 1 --contact=http://navratil.cz a.mp4
Now I'm trying use --two-pass parameter
with ffmpeg2theora 0.25+svn16645 - Xiph.Org libtheora 1.1 20090822 (Thusnelda)
if I just add --two-pass, then I'm getting
Could not set up the first pass of two-pass mode.
Did you remember...
2009 Nov 15
2
is --two-pass intended for target size only or also for better quality?
Hello,
Can I achieve with --two-pass better quality for same size or
--videoquality 5 is fine and I will not get any improvement?
Thank you,
Jiri
2010 Nov 04
1
"max_analyze_duration reached" means what?
...mentary_by_Ali_Boubred.avi
I'm doing this encode on Fedora 13 GNU/Linux on a 64-bit AMD processor.
The program encodes the video but I get something that looks like a
warning and I don't know what it means:
--------------------------------------------------------------
$ ffmpeg2theora --videoquality 10 --audioquality 10 --optimize --output
~/out.ogv Sintel_Documentary_by_Ali_Boubred.avi
[avi @ 0x10ff720]max_analyze_duration reached
Input #0, avi, from
'/media/Sintel_EXTRAS/extras/documentary/Sintel_Documentary_by_Ali_Boubred.avi':
Metadata:
ISFT : MEncoder UNK...
2009 Sep 02
2
issue with encoding of one particular file?
...big length of the video more then 1hour, what is not true
For encoding, I'm using
wget http://firefogg.org/nightly/ffmpeg2theora.linux
md5 a90e53aaa1081dfa206c5badd0d58e4d
ffmpeg2theora 0.24+svn16546 - Xiph.Org libtheora 1.1 20090822
(Thusnelda)
ffmpeg2theora.linux --optimize --no-upscaling --videoquality 5 --audioquality 1
Problematic file is from
wget http://digit.superhosting.cz/digit24.mp4
md5 239724c7758a6a9a56c53f002b0f1bae
ffmpeg2theora.linux digit24.mp4
Input #0, mov,mp4,m4a,3gp,3g2,mj2, from 'digit24.mp4':
Duration: 00:42:41.04, start: 0.000000, bitrate: 1177 kb/s
Stre...
2004 Dec 19
0
[patch] more ffmpeg2theora improvements
...a_pts_delta = (double)pkt.pts / AV_TIME_BASE - a_pts_out;
+ a_pts_out += (double)samples_out / this->sample_rate;
if(e_o_s && len <= 0){
break;
}
@@ -670,6 +752,11 @@
"\t --crop[top|bottom|left|right]\tcrop input before resizing\n"
"\t --videoquality,-v\t[0 to 10] encoding quality for video\n"
"\t --videobitrate,-V\t[45 to 2000] encoding bitrate for video\n"
+ "\t --smoothness,-S \t[0 to 2] smoothness of images, high values\n"
+ "\t \trecommended for low-bitrate/high-res video\n&q...
2005 Mar 05
2
A/V sync strategies
I tried to encode some video from a DVD with encoder_example and
ffmpeg2theora, and it looked great, except that with both encoders the
A/V sync would drift noticeably after about 10 minutes, and by the end
of a two hour movie it would be a couple seconds off. So instead of just
whining about this and waiting for someone else to fix it, I decided to
try to learn about what's causing the
2004 Nov 20
0
ffmpeg2theora start and end time support
..."
"\t --aspect\t\tdefine frame aspect ratio: i.e. 4:3 or 16:9\n"
"\t --crop[top|bottom|left|right]\tcrop input before resizing\n"
"\t --deinterlace,-d \t\t[off|on] disable deinterlace, \n"
"\t\t\t\t\tenabled by default right now\n"
"\t --videoquality,-v\t[0 to 10] encoding quality for video\n"
"\t --audioquality,-a\t[-1 to 10] encoding quality for audio\n"
"\t --samplerate,-H\t\tset output samplerate in Hz\n"
"\t --nosound\t\tdisable the sound from input\n"
"\n"
"\t --v2v-preset,...