ffmpeg2theora - Page 3

filler56789 · 26th March 2023, 12:36

F.W.I.W.....

when I used to use ffmpeg2theora,
I always remuxed the reencode to .AVI

with VirtualDub (often) or ffmpeg (seldom).

.OGG is a stupid container and since Theora doesn't have B-frames...

benwaggoner · 27th March 2023, 16:06

Quote:

Originally Posted by Jamaika

For me these are abandoned projects.
https://github.com/xiph/theora Oct 27, 2020
https://github.com/xiph/ogg Apr 21, 2022
https://github.com/xiph/vorbis May 12, 2021

ffmpeg -i london_eye.mov -s 1920x1080 -c:v libtheora -q:v 10 -c:a libvorbis -q:a 10 output.ogv
[ogg @ 000001e0f458c930] Broken file, non-keyframe not correctly marked.

Yeah, Opus has been the most important and competitive Xiph codec for a number of years. It's very nicely designed, and pioneered hybrid speech/general coding years before xHE-AAC. Really good quality @ bitrate from telephony up to perceptually lossless.

LigH · 28th March 2023, 22:51

Well, my car radio does support Vorbis, but neither Opus nor AAC... but nobody cares about this niche, I guess.

benwaggoner · 28th March 2023, 23:20

Quote:

Originally Posted by LigH

Well, my car radio does support Vorbis, but neither Opus nor AAC... but nobody cares about this niche, I guess.

If your car radio supports anything digital, it should support AAC. HE AAC is what digital radio in the USA uses, at least.

LigH · 1st April 2023, 19:43

But I am in Europe, Germany. And it was cheap (Silvercrest, a LIDL discounter brand) and not very new. The manual reports it supports FLAC, MP3, WMA; but Ogg Vorbis was not even documented, I read about that secret in a web forum.

monsterogv · 4th April 2023, 20:19

abandon, of course the main format that is often used is not theora. syncroniation of theora with audio formats (vorbis/ogg) requires a process with a large memory allocation (hardware). input here "--no-deinterlace" , without using "--nosync".

rwill · 4th April 2023, 23:01

I think what LigH means is that he can burn Vorbis on a CD or put it on a Flash drive and use that with his cheap car stereo.

Car radios sold in Germany which support RDS (something like RBDS in the US) have to also have support for DAB+ (Digital Audio Broadcast+) since around 2021.

DAB+ is using HE AAC v2 for the audio part.

LigH · 5th April 2023, 11:28

My radio did not yet support DAB+. Only analog FM (UKW ~ VHF) and CD/USB/SD as digital audio sources.

monsterogv · 6th April 2023, 22:11

so it's like a cd rip. DAB+, for streaming you can use ffmpeg2theora but I'm still having trouble applying it. but too nice to introduce that technology

26th March 2023, 12:36	#41 \| Link
filler56789 SuperVirus Join Date: Jun 2012 Location: Antarctic Japan Posts: 1,347	F.W.I.W..... when I used to use ffmpeg2theora, I always remuxed the reencode to .AVI with VirtualDub (often) or ffmpeg (seldom). .OGG is a stupid container and since Theora doesn't have B-frames... __________________ «Your software patents have expired.»

28th March 2023, 22:51	#43 \| Link
LigH German doom9/Gleitz SuMo Join Date: Oct 2001 Location: Germany, rural Altmark Posts: 6,688	Well, my car radio does support Vorbis, but neither Opus nor AAC... but nobody cares about this niche, I guess. __________________ New German Gleitz board MediaFire: x264 \| x265 \| VPx \| AOM \| Xvid

1st April 2023, 19:43	#45 \| Link
LigH German doom9/Gleitz SuMo Join Date: Oct 2001 Location: Germany, rural Altmark Posts: 6,688	But I am in Europe, Germany. And it was cheap (Silvercrest, a LIDL discounter brand) and not very new. The manual reports it supports FLAC, MP3, WMA; but Ogg Vorbis was not even documented, I read about that secret in a web forum. __________________ New German Gleitz board MediaFire: x264 \| x265 \| VPx \| AOM \| Xvid

5th April 2023, 11:28	#48 \| Link
LigH German doom9/Gleitz SuMo Join Date: Oct 2001 Location: Germany, rural Altmark Posts: 6,688	My radio did not yet support DAB+. Only analog FM (UKW ~ VHF) and CD/USB/SD as digital audio sources. __________________ New German Gleitz board MediaFire: x264 \| x265 \| VPx \| AOM \| Xvid

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4th April 2023, 20:19	#46 \| Link
monsterogv Registered User Join Date: Mar 2023 Posts: 4	abandon, of course the main format that is often used is not theora. syncroniation of theora with audio formats (vorbis/ogg) requires a process with a large memory allocation (hardware). input here "--no-deinterlace" , without using "--nosync".

4th April 2023, 23:01	#47 \| Link
rwill Registered User Join Date: Dec 2013 Posts: 314	I think what LigH means is that he can burn Vorbis on a CD or put it on a Flash drive and use that with his cheap car stereo. Car radios sold in Germany which support RDS (something like RBDS in the US) have to also have support for DAB+ (Digital Audio Broadcast+) since around 2021. DAB+ is using HE AAC v2 for the audio part.

6th April 2023, 22:11	#49 \| Link
monsterogv Registered User Join Date: Mar 2023 Posts: 4	so it's like a cd rip. DAB+, for streaming you can use ffmpeg2theora but I'm still having trouble applying it. but too nice to introduce that technology