Cmd Line MPEG4 Encoder - ffmpeg

[cgrey]

Originally posted by mlbdude
If anyone can figure out how to do 2 pass encoding let us know. It would allow much greater quality if it work like it does in XVid or Divx. We could probably talk Alex into updating his compressor to do it .

http://ffmpeg.sourceforge.net/ffmpeg-doc.html

Call it twice using the 'pass' parameter. 1 for the first pass, 2 for the second:

`-pass n'
select the pass number (1 or 2). It is useful to do two pass encoding. The statistics of the video are recorded in the first pass and the video at the exact requested bit rate is generated in the second pass.

`-passlogfile file'
select two pass log file name to file.

[JUC]

how would that get enterred in the ffmpeg properties.XML file (if that's where its going)?
JUC

[mlbdude]

Here is what I get when I do that....


G:\ffmpeggui02c>ffmpeg -i w:\Sagetv\AquaTeenHungerforceTheShaving-2016573-0.mpg
-pass 1 -passlogfile pass.log -hq -s 540x360 -deinterlace -y -f avi -vcodec mpeg
4 -b 1000 -g 300 -bf 2 -acodec mp2 -ab 128 test.avi
Input #0, mpeg, from 'w:\Sagetv\AquaTeenHungerforceTheShaving-2016573-0.mpg':
Duration: 00:17:59.0, bitrate: 7096 kb/s
Stream #0.0: Video: mpeg2video, 720x480, 29.97 fps, 8000 kb/s
Stream #0.1: Audio: mp2, 48000 Hz, stereo, 384 kb/s
Output #0, avi, to 'test.avi':
Stream #0.0: Video: mpeg4 (hq), 540x360, 29.97 fps, q=2-31, pass 1, 1000 kb/s
Stream #0.1: Audio: mp2, 48000 Hz, stereo, 128 kb/s
Stream mapping:
Stream #0.0 -> #0.0
Stream #0.1 -> #0.1
frame=32351 q=5.0 size= 149137kB time=1079.2 bitrate=1132.1kbits/s

G:\ffmpeggui02c>ffmpeg -i w:\Sagetv\AquaTeenHungerforceTheShaving-2016573-0.mpg
-pass 2 -passlogfile pass.log -hq -s 540x360 -deinterlace -y -f avi -vcodec mpeg
4 -b 1000 -g 300 -bf 2 -acodec mp2 -ab 128 test.avi
Input #0, mpeg, from 'w:\Sagetv\AquaTeenHungerforceTheShaving-2016573-0.mpg':
Duration: 00:17:59.0, bitrate: 7096 kb/s
Stream #0.0: Video: mpeg2video, 720x480, 29.97 fps, 8000 kb/s
Stream #0.1: Audio: mp2, 48000 Hz, stereo, 384 kb/s
Output #0, avi, to 'test.avi':
Stream #0.0: Video: mpeg4 (hq), 540x360, 29.97 fps, q=2-31, pass 2, 1000 kb/s
Stream #0.1: Audio: mp2, 48000 Hz, stereo, 128 kb/s
Stream mapping:
Stream #0.0 -> #0.0
Stream #0.1 -> #0.1
statistics are damaged at line 32349, parser out=0
Error while opening codec for stream #0.0 - maybe incorrect parameters such as b
it_rate, rate, width or height

[edbmdave]

Originally posted by mlbdude
Has anyone encoded a movie or something 2 hours or longer? I loose audio after about 10 seconds when I encode my 3.2 per/hr movies. I want to know if it is just me or not .

I can confirm. About 7 seconds in 120 minute movie, audio was lost.

[edbmdave]

Originally posted by Alex0230
I just ran some ffmpeg conversion comparisons, here are some results:

30min Recording on Default Quality (1GB/Hr)

1800 - 192 -- saved ~50MB
1700 (input bitrate) - 192 -- saved ~ 71MB
1300 - 192 -- saved ~150MB

Each conversion takes about 20-30 mins and runs anywhere between 60-90% CPU on my 1.6GHz Centrino. Either in Java or in the scheduler, hopefully the priority can be dropped from normal to low...if in Java, I'll allow it to be configured.

Alex0230: There is a new version of FFMPEG out there 049, I don't know if you compiled the one you distributed on your own or not. If so Can you compile the 049 version and make available? It may solve the blockiness of cartoons. Since this is all testing anyway....

[mlbdude]

Originally posted by edbmdave
I can confirm. About 7 seconds in 120 minute movie, audio was lost.

Well, unless we can get past this I think we are at a wall. Maybe the new beta version has this fixed. If someone can find a binary version of it or can compile it let us know and we will try.

[Alex0230]

http://www.videohelp.com/tools?tool=263

Try this...

[mlbdude]

Originally posted by Alex0230
http://www.videohelp.com/tools?tool=263

Try this...

Looks like only the source for .49 is there.

[Alex0230]

Last time I don't check a link before posting it...lol... : ) I sent a binary copy of the file to mlbdude for him to post because it to too large to post on the forums.

WARNING!!! I got a lot of variable unitialized warnings compiling this, plus remember this is in an alpha release of ffmpeg. I haven't even tried it to see if it converts...I just know the program "works" when running it.

[mlbdude]

I am testing it now. If it works I will update all the packages tomorrow. Keep your fingers crossed .

[Ryokurin]

im recording something now that will be a 2hr movie if it creates the xml file at the end like I think it will it should be around a 4gig file. at least thats what I hope. I dont know if I have everything setup correctly yet.

[mlbdude]

Originally posted by mlbdude
I am testing it now. If it works I will update all the packages tomorrow. Keep your fingers crossed .

Test failed. No audio at 10 second marker. Does anyone know a developer for ffmpeg?

[lovingHDTV]

I thought Virtual Job could be run from the command line. There is a mpeg2 version of it available. Would this work instead?

http://fcchandler.home.comcast.net/stable/

Not sure if this will work, but thought I'd mention it.

[Alex0230]

Originally posted by mlbdude
Test failed. No audio at 10 second marker. Does anyone know a developer for ffmpeg?

My test passed....I think it depends on the file size. I had a movie (Life), that is 2 hours long but it was recorded at the default quality (1GB/HR)....so it comes out to 2GB. It then compresses down to ~860MB and the sound was there throughout.

[Alex0230]

Originally posted by lovingHDTV
I thought Virtual Job could be run from the command line. There is a mpeg2 version of it available. Would this work instead?

http://fcchandler.home.comcast.net/stable/

Not sure if this will work, but thought I'd mention it.

good news is....to try this should not require a code change, only properties.xml.

If you're going to try this, change the "EXE_COMMAND" in the properties.xml and also enable it. All the following values come from the recording's xml and most can be set to override the recordigns xml in the properties.xml by setting a value and "enabling" the property:

@INPUT -- refers to the input file name
@AUDIO_RATE -- refers to the audio rate (128/192/etc)
@VIDEO_RATE -- refers to the video rate (1700/700/etc)
@OUTPUT_FORMAT -- refers to what format you'd like to compress to, it also dictates the output extension (avi/rm/etc)
@OUTPUT -- refers to the output file (this is generated by the program)
@VCODEC -- refers to the video codec to use (mpeg4/etc)
@ACODEC -- refers to the audio codec to use (mp2/etc)
@QUALITY -- refers to the quality flag (-hq/etc)
@SIZE -- refers to the flag + size (640x480/etc) == "-s 640x480"

For quality and size, if they are left blank, there are no defaults so they will not be included as part of the command line. If there is a size given, the default flag in the program is "-s"...this can be overwritten in the properties.xml.

These '@' values allows you to specify your own command line in the program and rearrange the position of the parameters that come in.

I won't be able to try out Virtual Job for another 12 hours or so, but I thought I'd pass on the info on how to try it out.

[mlbdude]

Virtual Dub from what I know does not support command line operation. However, I think it does support some kind of scripting language. If someone can write us some of those scripts that we can use that would be great. It needs to run completely silent and the scripts need to be runnable from the command line.

[RedCoat999]

There is a post on their forum about Command Line Options HERE . Hopefully this link works. Just search for "command AND line AND options" and select ALL DATES.

[Jason]

Originally posted by mlbdude
Virtual Dub from what I know does not support command line operation. However, I think it does support some kind of scripting language. If someone can write us some of those scripts that we can use that would be great. It needs to run completely silent and the scripts need to be runnable from the command line.

These pages may be helpful.

http://virtualdub.everwicked.com/ind...=5&t=6114&hl=&

http://virtualdub.everwicked.com/ind...l=script+file&

http://dubman.sourceforge.net/

and maybe...

http://virtualdub.everwicked.com/ind...hl=scriptfile&

-Jason

[mikejaner]

Virtualdub is a very good program. I would suggest doing the encoding with Virtualdub.

[mlbdude]

Well if someone can come up with some Virtual Dub scripts that work and that Alex can manipulate dynamically then we might be able to get him to redo his program.