Domination of MKV and MP4 in this forum

[SeeMoreDigital]

Can you provide a sample of this type of mux?Sure...

Here's an MP4 sample (http://82.10.220.174/Uploaded_Files/Doom9_Forum_files/MPEG-2_video+MP2_audio+Chapters.7z), encoded using MPEG-2 video (at just 315Kbps) with MPEG-1 Layer-2 audio at 224Kbps/48.0KHz and chapter points...

By-the-way, the file is stored on my home PC so it might be a bit slow to download...


Cheers

[Mtz]

Thanks for the file. My player which have support for MP4 aka Nero Digital cannot play it.

enjoy,
Mtz

[SeeMoreDigital]

Thanks for the file. My player which have support for MP4 aka Nero Digital cannot play it.I think there's only one standalone player that might be able to play the file.... Which make/model of player do you have now?


Cheers

[vlada]

Mtz
Have you expected anything else?

[Mtz]

SMD, I have 3-4 players which can play MP4 (ND) but all are with MTK chipset and inside them are firmwares from 2 generations. Both them I think are using the same ARM and DSP codes for MP4. The names of the players are not important because I can put in every I have (about 13) one of this 2 types of firmwares. The chipset is important in our discussion and is MediaTek.

vlada, before tesing I was 99.99 % that will not work (maybe the audio), but for that 0.01 % I want to test because was free of charge. If I will hack a little the firmware I think I can play the file from SMD, but I'll lose the normal play for MP4.
The idea is simple: in the ARM of firmware where is MP4 defined, changing the reference from MP4 to MPEG will let me view this files. But no reason for this and can be made for only one test, and the work on firmware don't deserve this.

enjoy,
Mtz

[Hyper Shinchan]

If I will hack a little the firmware I think I can play the file from SMD, but I'll lose the normal play for MP4.
The idea is simple: in the ARM of firmware where is MP4 defined, changing the reference from MP4 to MPEG will let me view this files. But no reason for this and can be made for only one test, and the work on firmware don't deserve this.

enjoy,
Mtz

Are you sure about hacking your player? Just to add MPEG-2 video and MPEG-1 audio support?
Anyway the player isn't expected to support them coz it supports Nero Digital (I assume Standard or Cinema profile), that just like DivX profiles were created to make the player compatible with a more limited range of codec configuration (and codecs). Nero Digital player won't support MPEG-1 and MPEG-2 in MP4. Either 3GPP or ITunes or PSP will do it, probably because it's a nonsense using high bitrate codecs on a handheld device.
I know that it could be useful with a standalone player, but don't blame MP4, blame Nero (and its manufactors). But at least they've started adding MP4 support in the stand alone players world (with the risk that they continue to keep alive the same issues that we suffers with DivX players, I mean almost no support for QPel, and GMC thought they're part of ASP. I hope that it won't happen the same with AVC).

[SeeMoreDigital]

Thanks for the file. My player which have support for MP4 aka Nero Digital cannot play it.Can you download the sample file again. I've re-muxed it using a different version of MP4Box ;)

[Mtz]

Are you sure about hacking your player? Just to add MPEG-2 video and MPEG-1 audio support?
All SAP support MPEG-2 video and MPEG-1 audio. I think I was clear in my previoust post: to change the reference for the MP4 extension to MPEG extension. When the player will find the MP4 extension it will consider it MPEG and playing the file. But as I said, no reason for this hack.
Example from the ARM Code:
Extensions:
.MPEG > 00 00 09 04 4D 50 45 47
...MP4 > 00 00 14 03 4D 50 34
Changing for .MP4 the 14 03 into 09 04 will let me play the file from SMD.

Regarding Nero, in all Mediatek players with ND support the Standard profile is available. With a small hack in the firmware (and I made it), also the Cinema Profile (I'm talking about more than 2 AAC audio channels) can be played.
And yes, I already modified a lot of firmwares. Look here. (http://mtz.softpedia.com/)

SMD, if still MPEG-2 video and MPEG-1 audio in the MP4, no reason to test it again. Thanks for the effort and all you do in this forum.

enjoy,
Mtz

[Hyper Shinchan]

I didn't know that you're an expert of this firmware hackings ^^' I was worry about your player XD
Anyway yes, MP4 supports theorically MPEG-2 and MPEG-1 codecs (all of them, audio and video at any levels, there's also a registered object type for the old MPEG-2 5.1 Bacward Compatible used by SVCD in the past).
All the registered object types are listed here (http://www.mp4ra.org/object.html).