mp4a & mp4v XP problems ...

[post-it]

making an AMV .MP4 compliant seems to be tuffer than I thought!

1) Super won't load on my 800 X 480 screen
2) AviDemux does not have the mp4a option
3) Virtual Dub has no idea what I'm asking it to do
4) AviSynth doesn't grasp the concept

.. Zero was talking about the MP4box doing .. something

?? is there a quick way to solve this mp4a problem without buying a MAC ??

-----------

PS I bought a "Video Transfer" thingy from Best-Buy on monday; it
can do these kinds of encodes "on-the-fly" from VCR's, DVD's & ASTC
Converter Boxxes -- so I know that it can't be that hard ( to encode
everything via a computer ( XP / Vista )

... help

[AaronAMV]

Wait, what are you trying to do?

[post-it]

.. erps

.. Ripped the DVD's needed.
.. Hacked and Slashed the Cuts that I needed.
.. proofed the final video selections for de-interlacing errors.
.. acquired the Audio needed and customized the sound-track.
.. proofed the Final Cut for timing errors.
.. saved the AMV to a .VOB on my hard drive.

.. Found something that will handle MP4v with H264.
.. T_T can't get the MP4a to encode correctly T_T ( AAC is not MP4a )

both Super and Zarx are having the same problem as MediaCoder on thisa one.

.. my system .. XP SP3 & my other is Vista 64 Home Premium.

I know the problem is the Audio Encoder because it converts to MP3
and MPa2 with ease .. plus I do have some experience with encoding
some .. sub's-sti-tute series.

.. any idea's ???

[kmv]

umm... I'm still not sure what you are trying to do, but AAC definitely is mp4a. Although I assume that you mean 'm4a' not 'mp4a' as the first is description of the container and the second is the atom type declaration.

mp4box is a muxing tool, not an encoding tool (yes it does support scene description encoding, but that doesn't count).

You say that you already have a m4v so I won't discuss that, aside from a single reference: x264

To encode a compliant m4a I recommend 'faac'. The key options you need to use for faac are:

• -q: quantizer quality. There is a table of quantisers to use for different bit rates in the doc's, as follows:
  Spoiler :

  -q 130 -c 22000 (~218 kbps)
  -q 120 -c 20000 (~194 kbps)
  -q 110 -c 18000 (~158 kbps)
  -q 100 -c 16000 (~129 kbps)
  -q 90 -c 14000 (~103 kbps)
  -q 80 -c 12000 (~79 kbps)
  -q 70 -c 10000 (~62 kbps)
• -b: average bitrate (of encode)
• -P: Raw PCM input mode. Critical if you are giving it a wav or aiff (and you would be, right?)
• -R: Raw PCM input rate. The sample rate of the PCM file (in Hz)
• -B: Raw PCM input sample size. The number of bits per sample in the PCM file: 8, 16, 24, or 32
• -C: Raw PCM input channels. The number of audio channels in the PCM file, i.e. stereo is 2
• -X: Raw PCM swap input bytes. If the PCM is a WAV use this switch, if the PCM is an AIFF don't use it.
• -w: Wrap AAC data in MP4 container. Create a m4a compliant file.
• -o: Output file name

So, assuming that you have a 48kHz 16bit stereo PCM file and want a 194kbps AAC file then the command line looks like this:

Code: Select all

faac -q 120 -b 194 -P -R 48000 -B 16 -C 2 -X -w -o MyAACfile.m4a infile.wav

Because you mentioned mp4box I will give you a simple command line to take a m4v (at 25 frames per second, i.e. PAL) and the above m4a and mux them into a compliant mp4 container:

Code: Select all

mp4box -add My264file.m4v -add MyAACfile.m4a -fps 25 -new OutFile.mp4

[post-it]

.. the project is for a "Sansu View" MP3 & Video player w/FM Stereo.

. the encoder that, didn't come with it, is soo slow that I'm looking
for an alternative to "it" itself. The video is not an issue; it will accept
640 X 480 at 44fps ( not too shabby. ) The Audio is being rejected
by this unit because the m4a is non-supported with my last encoder.

. I'll give these a try and let you know how its doing.