PSP video encoding thread

[wonderboy]

Hey Bazald. If your just encoding a video with Ffmpeg. How do you get
pass there needing to be a specific .mp4 hack if you will. For the PSP to
recognize the .mp4. Are you doing anyting after you encode the mp4 file.
What with you being on Linux...?

Thanks.

[bazald]

wonderboy: all *I* am doing is setting the "psp" format option. The good people working directly on FFMpeg have done all the hard work. (You would have to ask them. ) The only problem I've noticed is it doesn't seem to be possible to use the unusual resolutions people have gotten working in other converters. So, you still have to have black bars for widescreen. Remember though, the option doesn't exist in the "stable" builds. You *must* use CVS.

[wonderboy]

Thanks bazald. I look around for more info....

[krysuk]

Hi there I'v been using your 3gp ini settings very successfully but have hit a snag...

I have a 235:1 video that I want to convert to 368x208 which is currently 368x160

can I use the ffmpeg switches -padtop - padbottom in the ini to expand the video without stretching the source

or can I do anything in virtualdubmod to pad the source before running it through 3gp?

many thanks

[wonderboy]

Sure krysuk. You can you either, take you pick...

In 3GP, use the -padtop -padbottom flags for ffmpeg. So as your
vid is 368x160. Change the -s (size in you trancoding ini) from 368x208
to 368x160. Then add, -padtop 24 -padbottom 24. So, when encoded
it will pad evenly, to the size you want. Here an example..

ffmpeg" -y -i "<%InputFile%>" -title "<%Title%>" -timestamp "<%TimeStamp%>" -bitexact -vcodec xvid -s 368x160 -r 29.97 -padtop 24 -padbottom 24 -b 540 -acodec aac -ac 2 -ar 24000 -ab 64 -vol 180 -f 3gp "<%TemporaryFile%>.3gp""

In VirtualDub(mod). Just open the video, goto video-> Filters. Add the
resize filter. Type in the width height (368x160). Then tick, expand frame
and letter box image option. Then adjust the height to 208. Also, change
filter mode. To either a precise bicubic or lanczos filter, to keep the
sharpness on the image. It's just a matter then of selecting a codec in
compression. The save as....

Hope this helps. Good luck..

[krysuk]

Thanks Wonderboy- I'll try that when I've cleared enough space on my disk to re-run the film through virtual dub

[wonderboy]

Glad to help..!

[krysuk]

On another note I've been using your 368x208 450kps profile and looking to get a higher bitrate version of this - 900kps

looking at your ini the first pass you have the bitrate at just over double the final bitrate

ie 990 to 450

is there a set formula for how much higher the first pass should be as I tried doing one for 540 using 1080 as the first pass but after the first pass 3gp bombs out and shutsdown

[wonderboy]

Hi krysuk. On a two-pass, the first pass bit-rate doesn't really matter.
The first pass is really used to collect infomation for the second pass.
Motion, where best to bits etc. If you want say, 540kbs/sec just change
the second pass to 540. Easy as that, really. I just leave the first-pass
at 900, because at 368x208. Generally, the bit-rate won't go over, let
alone reach it at quantizer=2. Depending on content, movment, light and
dark etc..

Here's my 2-pass, if it helps. I also, added -g 300 for keyframes.

[Item21]
Title=368x208/29.97fps/540kbps ƒXƒeƒŒƒI/128kbps
TitleE=368x208/29.97fps/540_kbps Stereo/128kbps
Command0=""<%AppPath%>\cores\ffmpeg" -y -i "<%InputFile%>" -pass 1 -passlogfile "<%TemporaryFile%>" -title "<%Title%>" -bitexact -vcodec xvid -s 368x208 -g 300 -r 29.97 -b 900 -acodec aac -ac 2 -ar 24000 -ab 64 -vol 180 -f 3gp "<%TemporaryFile%>.3gp""
Command1=""<%AppPath%>\cores\ffmpeg" -y -i "<%InputFile%>" -pass 2 -passlogfile "<%TemporaryFile%>" -title "<%Title%>" -bitexact -vcodec xvid -s 368x208 -g 300 -r 29.97 -b 540 -acodec aac -ac 2 -ar 24000 -ab 64 -vol 180 -f 3gp "<%TemporaryFile%>.3gp""
Command2=""<%AppPath%>\cores\QT3GPPFlatten" "<%TemporaryFile%>.3gp" "<%TemporaryFile%>_2.3gp" -c QT_3GPP(MobileMP4)_368x208_AAC.ini"
Command3="rm "<%TemporaryFile%>.3gp""
Command4=""<%AppPath%>\cores\ATOMChanger" "<%TemporaryFile%>_2.3gp" "<%OutputFile%>.MP4" "Camouflage_MP4_for_PSP_ForceQVGA.ini""
Command5="rm "<%TemporaryFile%>_2.3gp""
Command6=""<%AppPath%>\cores\ffmpeg" -y -i "<%InputFile%>" -f singlejpeg -ss 5 -vframes 1 -s 160x120 -an "<%OutputFile%>.THM""


Also, if you want to try min-max method of encoding your videos. To
experiment see if it's better for what your encoding. Just alter to your
needs. -b 450 is the target, -maxrate 576 is the highest allowed, -minrate
250 is the lowest.

[Item19]
Title=368x208/29.97fps/540kbps ƒXƒeƒŒƒI/128kbps
TitleE=368x208/29.97fps/540kbps_min_max Stereo/128kbps
Command0=""<%AppPath%>\cores\ffmpeg" -y -i "<%InputFile%>" -pass 1 -passlogfile "<%TemporaryFile%>" -title "<%Title%>" -bitexact -vcodec xvid -s 368x208 -g 300 -r 29.97 -b 450 -maxrate 576 -minrate 250 -bt 16 -acodec aac -ac 2 -ar 24000 -ab 64 -vol 180 -f 3gp "<%TemporaryFile%>.3gp""
Command1=""<%AppPath%>\cores\ffmpeg" -y -i "<%InputFile%>" -pass 2 -passlogfile "<%TemporaryFile%>" -title "<%Title%>" -bitexact -vcodec xvid -s 368x208 -g 300 -r 29.97 -b 450 -maxrate 576 -minrate 250 -bt 16 -acodec aac -ac 2 -ar 24000 -ab 64 -vol 180 -f 3gp "<%TemporaryFile%>.3gp""
Command2=""<%AppPath%>\cores\QT3GPPFlatten" "<%TemporaryFile%>.3gp" "<%TemporaryFile%>_2.3gp" -c QT_3GPP(MobileMP4)_368x208_AAC.ini"
Command3="rm "<%TemporaryFile%>.3gp""
Command4=""<%AppPath%>\cores\ATOMChanger" "<%TemporaryFile%>_2.3gp" "<%OutputFile%>.MP4" "Camouflage_MP4_for_PSP_ForceQVGA.ini""
Command5="rm "<%TemporaryFile%>_2.3gp""
Command6=""<%AppPath%>\cores\ffmpeg" -y -i "<%InputFile%>" -f singlejpeg -ss 5 -vframes 1 -s 160x120 -an "<%OutputFile%>.THM""

I'm usually putting anime on my PSP. So, one 540, or two pass at about
450 is fine for me. If i was you, i'd try a couple of tests, with various 2min
clips of different videos. To build up a couple of settings...

Anyway, hope this helps you. If you need any help just ask.

Good luck.

[Nu-Eclipse]

I'm having no probs at all getting DVDs onto my PSP with DVD Decrypter/PSP Video 9/ 3GP Converter, but I was wondering if anyone here could help with the folowing...

Having made a .VOB file of Akira using DVD Decrypter, I've tried to transcode it using PSP Video 9 but for some reason it wont finish the conversion properly. I'm then left with a corrupt .MP4 file that doesn't play.

I'm going to try converting the .VOB file with 3GP Converter.

Having said all that though, I'm wondering if anyone can advise me on the best Audio/Visual profile to use for PSP Video 9 when trying to convert .VOB files of Anime DVDs?....

[Zatoichi_Samurai]

Nu_Eclipse have you definately enabled the stream processing? I was having trouble with some VOB rips, then when i used the stream processing to select a single audio & video track I havent had a problem since.

[Nu-Eclipse]

Nu_Eclipse have you definately enabled the stream processing? I was having trouble with some VOB rips, then when i used the stream processing to select a single audio & video track I havent had a problem since.

Whenever I decrypt a DVD, I always enable stream processing. I have created .VOBs of other films and I haven't had any problems in converting them to .MP4 files that play perfectly on my PSP.

My problem just seems to be with Akira. I was just wondering if the audio/visual profile used for .MP4 conversion had anything to do with it. I always use the best possible profiles i.e. 320x240/29.97fps/768(or 1500)kbps Stereo/128kbps. I was thinking that a different profile might have been called for due to Akira being an animation and not a live-action film.

Nevertheless, I intend to try decrypting & converting Akira again. This time, I'll definitely make sure that I enable the stream processing in DVD Decrypter.

[krysuk]

Hi Wonderboy - thanks for all your help - have a few other encoding options up and working..

Tried a 900kps but the movie it produced came up as incompatible on the psp - I checked the ini file and the 1500kps has a false 768kps line in it
any idea how that works?

many thanks

[wonderboy]

Hi krysuk. You can't use anything over 768kbs/sec on the PSP, as such.
It can, but like you said, you use a hacked header info. It's the -muxvb
that's the needed tag...
Anyway here's a couple that will work for you....

First one is a 2-pass. The second pass is 1260. This is the one to change.
To say the 900kbs/sec you want. Or anything up to 1500kbs/sec..

[Item18]
Title=368x208/29.97fps/1260kbps ƒXƒeƒŒƒI/2chx64kbps
TitleE=368x208/29.97fps/1260_kbps Stereo/2chx64kbps
Command0=""<%AppPath%>\cores\ffmpeg" -y -i "<%InputFile%>" -pass 1 -passlogfile "<%TemporaryFile%>" -title "<%Title%>" -bitexact -vcodec xvid -s 368x280 -g 300 -r 29.97 -b 1500 -acodec aac -ac 2 -ar 24000 -ab 64 -muxvb 768 -vol 180 -f 3gp "<%TemporaryFile%>.3gp""
Command1=""<%AppPath%>\cores\ffmpeg" -y -i "<%InputFile%>" -pass 2 -passlogfile "<%TemporaryFile%>" -title "<%Title%>" -bitexact -vcodec xvid -s 368x208 -g 300 -r 29.97 -b 1260 -acodec aac -ac 2 -ar 24000 -ab 64 -muxvb 768 -vol 180 -f 3gp "<%TemporaryFile%>.3gp""
Command2=""<%AppPath%>\cores\QT3GPPFlatten" "<%TemporaryFile%>.3gp" "<%TemporaryFile%>_2.3gp" -c QT_3GPP(MobileMP4)_368x208_AAC.ini"
Command3="rm "<%TemporaryFile%>.3gp""
Command4=""<%AppPath%>\cores\ATOMChanger" "<%TemporaryFile%>_2.3gp" "<%OutputFile%>.MP4" "Camouflage_MP4_for_PSP_ForceQVGA.ini""
Command5="rm "<%TemporaryFile%>_2.3gp""
Command6=""<%AppPath%>\cores\ffmpeg" -y -i "<%InputFile%>" -f singlejpeg -ss 5 -vframes 1 -s 160x120 -an "<%OutputFile%>.THM""

This is just the 1-pass. Altered for 900kbs/sec.

[Item19]
Title=368x208/29.97fps/900kbps ƒXƒeƒŒƒI/128kbps
TitleE=368x208/29.97fps/900kbps Stereo/128kbps
Command0=""<%AppPath%>\cores\ffmpeg" -y -i "<%InputFile%>" -title "<%Title%>" -timestamp "<%TimeStamp%>" -bitexact -vcodec xvid -s 368x208 -r 29.97 -b 900 -acodec aac -ac 2 -ar 24000 -ab 64 -muxvb 768 -f 3gp "<%TemporaryFile%>.3gp""
Command1=""<%AppPath%>\cores\QT3GPPFlatten" "<%TemporaryFile%>.3gp" "<%TemporaryFile%>_2.3gp" -c QT_3GPP(MobileMP4)_368x208_AAC.ini"
Command2="rm "<%TemporaryFile%>.3gp""
Command3=""<%AppPath%>\cores\ATOMChanger" "<%TemporaryFile%>_2.3gp" "<%OutputFile%>.MP4" "Camouflage_MP4_for_PSP_ForceQVGA.ini""
Command4="rm "<%TemporaryFile%>_2.3gp""
Command5=""<%AppPath%>\cores\ffmpeg" -y -i "<%InputFile%>" -f singlejpeg -ss 5 -vframes 1 -s 160x120 -an "<%OutputFile%>.THM""

Hope this helps..

[krysuk]

thanks wonderboy - you have really helped me a lot

very grateful