BatMan - batch processing for MEncoder

[BobbyQ]

the biggest problem is that I don't own a player that can play amv, so I cannot test -> it would be too difficult to do it blindfold.

[jp]

BobbyQ: Thanks for your suggestions. Still couldn't get it to work. Will PM you test files.

I was able to play an AVIConvert of a non-playing Batman conversion. Go figure?!

[BobbyQ]

in cooperation with jp now .. we might have found a solution for rockchip players. testing and developing right now .. stay tuned
EDIT : the new beta version of BatMan now supports "rockchip-based players" and seems to work in a first test. but it's still experimental and under development.

[BobbyQ]

the new beta now supports both rockchip models, the 320x240 and the 224x176 one.

[iixorbiusii]

BobbyQ,

Further to my response here : http://www.mympxplayer.org/viewtopic.php?p=37155#37155

If it helps, I can advise the following settings which work everytime when I use DVD2MP4 converter

For the 2" player (224x176) :

First, select 'XviD' as the Profile.

For Video Size, manually type "224x176" - on my version (4.0.83 build 0178) this size doesn't appear in the drop-down, but manually typing it as I have shown here, works.

Bit Rate - I have found that 512 works 100%.

Frame Rate - at 20FPS, the sound and video remain in sync. Higher FPS ratings result in a slightly smoother video, but the sound lags behind.

Aspect - Auto

Same Quality - False

Audio Codec - MP2 - Important Note! Although Rockchip players handle MP3 Music fantastically, the video audio must be encoded as MP2 it seems.

Bit Rate - 128 works for me everytime.

Sample Rate - 44100 - ditto!

Channels - Stereo

Disable Audio - False
For the 2.4" (also 2.8" and 3" now) Rockchip players, do exactly as above, but select a video size of "320x240"

PLEASE DON'T GET CONFUSED FOLKS - THE ABOVE ARE THE SETTINGS REQUIRED IN THE XILISOFT PRODUCT, NOT BATMAN - I HAVE POSTED THEM HERE TO HELP BOBBYQ FINE TUNE BATMAN

[BobbyQ]

Thank you iixorbiusii. The current beta already does the above. Maybe someone wants to test ? Just select your device with "d", then enter "x" for the Qx profile.

[iixorbiusii]

Hi BobbyQ - Some feedback

I have tried 3 different non-brand 320x240 Rockchip units at the current default of 24FPS, and the results are as follows:
Image: Very sharp - sharper than dvd2mp4 converter
Colours: Very good
Motion: quite jerky at the moment, and the picture actually lags way behind the audio.
Audio Quality - Stereo, very good.

On another note in using Xilisoft dvd2mp4 converter, I have noticed that all three play movies completely smoothly at 25 FPS, but the sound quickly lags behind (@20FPS, the video and audio remain in sync). So therefore, from a visual point of view, the Rockchip units can handle movies at 25 FPS with no jerking. I use an audio rate of 44100, which is one of the defaults in dvd2mp4 converter.

The other options in that software (32000 and 48000) result in the audio either racing ahead of seriously lagging way behind the 25FPS video.

Therefore, with some fine tuning of the audio rate, I reckon we could have 25FPS video (very very smooth) playing in sync with the audio. An audio rate of somewhere in the 26000~27000 range would probably do it, but dvd2mp4 converter doesn't allow you to pick anything other than a deafult.

Regarding the Rockchip option, is there any way we could select a 'fine tuned' audio rate in Batman, going forward?? e.g. manually type in a numbers like 26123 until the ultimate 25FPS / Audio sync combination is achieved?

[BobbyQ]

Hi, I don't know exactly what you mean by audio rate ?
If you are sure that the rockchip plays 25 fps, I can change it to that value easily - but jp told me he has the best result with 24 fps.
You can tweak that yourself by using the special command "switch" and "-ofps 25" where 25 can be anything, even 23.967. But that is not meant to be the way of fixing unsync audio ! It should be sync with every fps.
For the delay, BatMan uses a default delay of 270ms which is optimized for the M6, but you can change that value with special command "delay" to whatever you want. Let's see if it helps. If that is the solution, I will use the settings you have found out for the next version.

[iixorbiusii]

Hi,

By rate, I mean Audio Sample Rate. If you get a chance, try the free demo DVD2MP4 converter from Xilisoft. It's a fully functioning demo, apart from it only allows you to do 5 minutes of a movie.

Re: Xilisoft's product:
I found that at 20 FPS, Sample Rate 44100, the video and audio remain in sync. However, the video is just a little jittery.
At 25 FPS, 44100, the video is completely smooth, like watching a DVD, but the audio lags. The 2 nearest options (32000 and 48000 I think) result in audio which is too fast or too slow.... The 32000 sample rate makes the audio sound like a record playing too fast, and 48000 makes it sound like one playing toooooo sloooooowly !
....Hence, I believe I need to be able to select a sample rate of just lower than 44100 ( forget what I said earlier with 26000~27000 - I was way off, and not concentrating!).

What's annoying about their software, is that I cannot select my own sudio sample rate, say 43562 for example, to keep the audio and movie in sync on a rock chip player.

So if possible, Using Batman, can I select my own audio sample rate, in a similar was to selecting my own FPS??

BTW, You should leave your Batman at 24 FPS if JP says this works - I will experiment with '-ofps' commands.

[BobbyQ]

it makes no sense to adjust the sample rate the way you consider it above, a value of 37158 isn't even supported. Standard sample rates are 44100 and 48000.
First of all, use "delay", set to "0" and convert. The result should play absolutely sync on your PC (if not, your source video is not sync !)
Then play it on your rockchip and check two things : speed (pitch) and delay. If speed is wrong, then the player does not support the chosen sample rate (Qx comes with 44100). You can try and adjust the sample rate with "switch" and "-srate 48000" or any other (supported) value.
The delay can be adjusted with "delay" and then enter the amount of delay in ms.