RipBot264 v1.18.3 - Simple and easy to use GUI -> IPOD . PSP . CONSOLES . BLURAY

[what2be]

Originally Posted by Atak_Snajpera

it's not a bug.

Will this be fixed in the next release? I cant see the point why you would encode to the default of 1280x1024 when you cant view it in apple tv at all at those settings.

Or is there another reason why its set at this resolution?

Thanks.

Geoff

[Atak_Snajpera]

Will this be fixed in the next release?

nope... there is nothing to fix. Besides 1280x1024 is not even a 16:9 so if use 1280x720 video will stretched.

[what2be]

Originally Posted by Atak_Snajpera

nope... there is nothing to fix. Besides 1280x1024 is not even a 16:9 so if use 1280x720 video will stretched.

That is true, but what is the point of having a preset for apple tv when nobody can view the movie they are encoding for on apple tv?

I realize the problem lies with apple tv and their limited resolutions, but I cant see the point of having a preset in the software when it wont work with the device it was intended for.

[x_specter_x]

OK, so you are saying don't demux the video first and just use the original files in ripbot264. I am rerunning it right now using the original source files. Let you know how that goes tomorrow.

[Atak_Snajpera]

I realize the problem lies with apple tv and their limited resolutions, but I cant see the point of having a preset in the software when it wont work with the device it was intended for.

Because AppleTv supports also lower resolutions. 960x540 , 640x480 ... It's up to user to select correct resolution! The same story is with PSP. Some people prefer 720x480 and others 480x272. iPOD - 640x480 or 320x240 !

[alc0re]

Atak,

Sorry to post in this thread this is slightly off topic...

I have a question about overhead when muxing an audio file (dts or ac3) and an h264 video file to Bluray structure (m2ts) using TSMuxer. There's a formula posted in another thread but I have no idea how to use it.

All I'm looking to do is figure out what bitrate my video needs to be re-encoded at to fit on a DVD9 after transcoding and resizing to 720p. Jamos said in that post to just add 6 minutes to total length of movie in the bitrate calc, but I want to be more exact than that.

Are there any programs/bitrate calcs out there that use that formula posted by you that I can input some numbers in and it will tell me the bitrate needed? None of the bitrate calcs I saw support M2TS container. If not, would you mind helping me figure out what I need to do to use that formula? (or possibly even programming a bitrate calc for m2ts overhead...)

Thanks...

[nwg]

If I use ripbot to make a Bd bigger than 25GB fit on a 25GB disc what MB should I enter in the file size box?

[~bT~]

~ 23500 to be safe.

edited.

[asarian]

Originally Posted by ~bT~

~ 24500 to be safe.

Are ya sure about that? The 25G is the unformatted value and is using 1000 as divider, instead of 1024. So, way I figure this, The real capacity is closer to:

Maximum Format Capacity:
Sectors: 12,219,392
Size: 25,025,314,816 bytes
Time: 2715:27:17 (MM:SS:FF)

25,025,314,816 bytes = 24,438,784 KB = 23,866 MB = 23.31 GB

And that's not counting 'spare areas' (for error correction and such).

[nwg]

I found out that 23.3GB is the formatted capacity which I worked out was 23,859.2MB so I will use 23,552MB to be safe which is 23GB.

[jtheripper]

I have found that it is better to undersize the video encode for a BD-25 because predicting the overhead size when creating the bluray structure from the video and audio mux is unpredictable. So I always set the size to 1 GB less to be safe. 1GB has negligible impact on PQ.

[Shropp]

whats the best way to add bars
to an already transcoded 4.1 file?
I just want 1:1 no loss or gain in quality?
like what profile? settings?

[asarian]

Originally Posted by Shropp

whats the best way to add bars
to an already transcoded 4.1 file?
I just want 1:1 no loss or gain in quality?
like what profile? settings?

You want no gain in quality??

Apart from that, it ain't gonna happen lossless, as you'll need to reencode. I use the following settings for my high-def reencodes:

--level 4.1 --aud --nal-hrd --vbv-bufsize 35000 --vbv-maxrate 35000 --filter 0,0 --ref 3 --b-pyramid --mixed-refs --bframes 3 --b-adapt 2 --weightb --no-fast-pskip --direct auto --subme 9 --trellis 1 --partitions all --8x8dct --me tesa --threads auto --thread-input --progress --no-psnr --no-ssim

Warning: some consider these settings 'insane', but if no quality loss is your bag, then these will certainly speed you on your way (actually, 'speed' is the wrong term, as it will go very, very slowly).

As for borders, I just put in an AviSynth command into the script, like:

video=AddBorders(video, 0, 140, 0, 140)

Or, in 'append' mode:

.AddBorders(0, 140, 0, 140)

To, say, the first line which defines 'video'.

[x_specter_x]

has anyone else had a problem with audio being out of sync?

I tried converting a movie with a DTS sound track and converted the audio to 640k and set a file limit to 8150MB. I left all the other settings alone. The problem is that the output file has audio out of sync. it is off by about 3 or 4 seconds. The audio is 3 or 4 seconds before the video. It is like that right from the beginning. This time i tried it by using the blu-ray source file from the stream directory and let ripbot process that file.

Could it be the settings on the computer I am using to play back the file? codecs or ffdshow settings? The computer that converted the video is too slow to play it back (bad video card). Any help would be greatly appreciated. I figure someone else must have had this problem at some time too.

[Sharc]

Originally Posted by asarian

It certainly doesn't look bad. The BiCubicResize image has about 3,000 less unique colors, but is still impressive, of course.

The thing of it is, though, maybe if you'd been part of the Blu-ray Disc Association, you could have convinced them to go with 720p. But 1080p it is. And you'll always gonna find folks like me, who simply don't want to lose anything: no colors, no resolution, no detail. no contrast, etc.

I usually crop such pictures to remove the black borders (often 132 pixels on top and bottom), then resize the remaining active picture to 1280x720 and set the sar accordingly for anamorphic encoding (45:34 in this case). This should preserve the original resolution / details best I presume. Anamorphic encoding is included in the BluRay spec IIRC - so there should be no compliance problem. I could not yet test the playback on a BD standalone though.

[Atak_Snajpera]

Could it be the settings on the computer I am using to play back the file? codecs or ffdshow settings? The computer that converted the video is too slow to play it back (bad video card). Any help would be greatly appreciated. I figure someone else must have had this problem at some time too.

If your CPU is too slow to decode video in real time then you get audio synchronization problems.

[nwg]

Originally Posted by Atak_Snajpera

If your CPU is too slow to decode video in real time then you get audio synchronization problems.

Sounds like I might be lucky then. I have done around a dozen BD to DVD conversions and they have all been in sync. I only have a Athlon 64 3700 (2.2ghz).

[asarian]

Originally Posted by Sharc

I usually crop such pictures to remove the black borders (often 132 pixels on top and bottom), then resize the remaining active picture to 1280x720 and set the sar accordingly for anamorphic encoding (45:34 in this case). This should preserve the original resolution / details best I presume. Anamorphic encoding is included in the BluRay spec IIRC - so there should be no compliance problem. I could not yet test the playback on a BD standalone though.

That's an interesting technique. I never thought about using anamorphic encoding, but it warrants some tests, as the result would be absolutely minimal, in terms of quality loss. You'd lose a measely 80 vertical pixels (on an 800p 'real' movie); but the anamorphic horizontal encoding would mean you lose even less than you normally would with 1280.

[Qwakrz]

I seem to have to add a delay of 250ms on the audio to any transcode I do. Its the same for any DVD to AVI (using XMpeg) or Blu-Ray / HD-DVD to MKV (using RipBot264). I have tested the audio sync on 4 PC's and different playing software etc and its always this far out on every transcode I do.

[Sharc]

@asarian
Exactly. Let us know your findings.
Using this technique I normally put the movie (resulting in about 4 Mbps datarate) and 2 audio ac3@640kbps streams on a SL 4.7 GB medium. Quality is very pleasant.