Displaying 4 results from an estimated 4 matches for "croptop".
2010 Jun 24
2
theora's encoding speed
Is there any way to get better encoding speed out of ffmpeg2theora?
eg: <snip> Duration: 00:57:04.92, <snip> ET: 02:06:24
here is the command:
ffmpeg2theora --soft-target -V303 -v4 -F25 -K25 --croptop 8 --cropleft 2 --cropright 2 -x360 -y288 --deinterlace --aspect 4:3 -H24000 -A56 --optimize "<filename.mpg>"
also the bitrate, 300kbits == 297kb (3 kbit less)
tom_a_sparks
Light travels faster then sound, which is why some people appear bright, until you hear them speak
2010 Nov 15
1
optimization of theora contract job
....
Right now we have to downsample 1080 to 480 before we can transcode, so it becomes a two-step ffmpeg process to get a 480 ogg/theora/vorbis done in realtime:
One proc:
ffmpeg -deinterlace -sws_flags bilinear -i - -vcodec mpeg2video -f mpegts -vb 3000000 -s 852x480 -acodec copy -v 0 -async 2 -croptop 5 -padtop 5 -padcolor 000000 -
Another proc:
ffmpeg -sws_flags bilinear -i - -vcodec libtheora -f ogg -vb 704000 -r 14.00 -s 852x480 -aspect 16:9 -acodec libvorbis -ar 44100 -ac 2 -ab 64000 -v 0 -async 2 -
This would be a contract job hourly starting within a week, and would likely turn into a...
2009 Jun 20
3
DVD NTSC video plays twice as fast when encoded with libtheora
https://roundup.ffmpeg.org/roundup/ffmpeg/issue1197
I had originally encountered this problem using ffmpeg2theora. I
switched to ffmpeg proper in an attempt to identify where the problem
was at, and found that the problem persisted. As a result I had
thought this was a problem with ffmpeg, but the ffmpeg folks seem to
indicate that this is specific to Theora (too much finger pointing I
think.) I
2004 Nov 20
0
ffmpeg2theora start and end time support
...ffmpeg2theora -f dv -x 160 -y 128 -o /dev/stdout - | \\\n"
"\t oggfwd iccast2server 8000 password /theora.ogg\n"
"\n");
exit (0);
}
int main (int argc, char **argv){
int n;
int outputfile_set=0;
char outputfile_name[255];
char inputfile_name[255];
static int croptop_flag=0;
static int cropbottom_flag=0;
static int cropright_flag=0;
static int cropleft_flag=0;
static int nosound_flag=0;
static int aspect_flag=0;
AVInputFormat *input_fmt=NULL;
ff2theora convert = ff2theora_init ();
av_register_all ();
int c,long_option_index;
const char *optstrin...