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23rd July 2005, 13:49 | #1 | Link |
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ffmpeg2theora with derf's theora codec support
j^ has ported his ffmpeg2theora tool to be able to be used with derf's theora encoder which makes use of the full features theora offers and not only the ones which were also there in vp3 (as supported in the reference theora encoder)
the sources can be found here: ffmpeg2theora-exp and derf's encoder anyone wanting to make a compile for testing this?
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23rd July 2005, 22:15 | #2 | Link |
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You can get one here: http://4nykey.nm.ru/bin/ffmpeg2theora-svn.exe
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23rd July 2005, 22:22 | #3 | Link |
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thx, but are you sure that this is with derf's encoder? did you do the compiles?
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23rd July 2005, 22:29 | #5 | Link |
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thanks a lot!
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28th July 2005, 08:31 | #6 | Link |
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cropping comand
I just cant get ffmpeg2theora to crop my clip
ffmpeg2theora -h states: Code:
ffmpeg2theora-exp 0.13-svn usage: ffmpeg2theora-exp [options] input Output options: --output,-o alternative output --width, -x scale to given size --height,-y scale to given size --aspect define frame aspect ratio: i.e. 4:3 or 16:9 --crop[top|bottom|left|right] crop input before resizing ... Code:
::ffmpeg2theora --crop=8:8:8:8 -o out.ogg prodigy90_med.mpg ::ffmpeg2theora -croptop 32 -cropbottom 32 -cropleft 32 -cropright 32 -o out.ogg Suzuka.avi ::ffmpeg2theora -o out.ogg Suzuka.avi ::ffmpeg2theora -i Suzuka.avi -croptop 32 -cropbottom 32 -cropleft 32 -cropright 32 -o out.ogg ::ffmpeg2theora --crop 8|8|8|8 -o out.ogg Suzuka.avi > out.txt ::ffmpeg2theora --crop 8 | 8 | 8 | 8 -o out.ogg Suzuka.avi > out.txt ::ffmpeg2theora --crop [8 | 8 | 8 | 8] -o out.ogg Suzuka.avi > out.txt ::ffmpeg2theora --crop [8|8|8|8] -o out.ogg Suzuka.avi > out.txt ::ffmpeg2theora --crop=[8|8|8|8] -o out.ogg Suzuka.avi > out.txt ::ffmpeg2theora --crop=[8 | 8 | 8 | 8] -o out.ogg Suzuka.avi > out.txt ::ffmpeg2theora --crop 8:8:8:8 -o out.ogg Suzuka.avi > out.txt ffmpeg2theora --crop=8:8:8:8 -o out.ogg Suzuka.avi > out.txt PAUSE E:\Rechner\Neu\Import\ffmpeg2theora>ffmpeg2theora --crop=8:8:8:8 -o out.ogg Suzu ka.avi 1>out.txt ffmpeg2theora: ambiguous option -- crop Input #0, avi, from 'Suzuka.avi': Duration: 00:24:03.8, start: 0.000000, bitrate: 1018 kb/s Stream #0.0: Video: mpeg4, yuv420p, 640x480, 23.98 fps Stream #0.1: Audio: mp3, 48000 Hz, stereo, 128 kb/s Resize: 640x480 Resample: 48000Hz => 44100Hz 0:00:00.04 audio: 0kbps video: 7480kbps Can anybody please enlighten me, how to set cropping values. Hellfred EDIT: Googling for "ffmpeg2thora crop" brought up the solution: Code:
ffmpeg2theora --croptop 16 --cropbottom 16 --cropright 32 --cropleft 16 -o out.ogg Suzuka.avi > out.txt Last edited by hellfred; 28th July 2005 at 08:37. |
28th July 2005, 09:44 | #8 | Link | |
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Quote:
Hellfred |
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28th July 2005, 19:36 | #9 | Link | |
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hellfred, i also struggled with its crop option and this is how it works:
Code:
--croptop 82 --cropbottom 78 Quote:
but derfs decoder is both faster and complete
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29th July 2005, 08:41 | #10 | Link |
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Yes, last night I encoded the same clip already used for testing derfs encoder with standardt ffmpeg2theora, featuring the mmx-enhanced reference encoder. Derfs encode was a little bit sharper (only set quality with -v 10 to max) but had much more block artefacts e.g. in the sky and more ringing. Source was a vob that needed to be deinterladed (-d).
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29th July 2005, 09:48 | #11 | Link |
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Err....
Why not porting these 'enhanced' features to ffvfw ?
...FairUse is going to become the 1st DVD Backup tool that encodes by it.
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29th July 2005, 10:36 | #12 | Link |
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how about AviSynth support???
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30th July 2005, 08:54 | #13 | Link |
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Quality on analog capture
Hi
I have made yet anoter test comparing the two ffmpeg2theora. This time the source was a video clip, captured with my analog tv-card. The Source has only low quality, was captured als lossless MJPEG and was being properly deinterlaced croped and resized (modolo16) before encoding. Deinterlacing was done using kerneldeint. Again, derf showed much more blocks as the mmx-enhanced reference encoder. Hellfred |
31st July 2005, 15:47 | #14 | Link | ||
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Quote:
Quote:
and ffdshow already includes the theora reference encoder and can even output to .ogg! (yeah .ogg, not .ogm)
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5th August 2005, 09:26 | #15 | Link | |
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Quote:
It's present in the last ffdshow build.
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5th August 2005, 13:04 | #17 | Link |
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oh, well... you mean they merged. I know.
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18th March 2006, 15:56 | #18 | Link | |
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Quote:
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18th March 2006, 17:21 | #20 | Link |
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Is there a way to pipe video and audio from .avs at the same time?
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