View Full Version : MP4 Vs MOV streaming contest
Hyper Shinchan
11th July 2005, 17:22
So, I've put on-line a clip for this test, but I'm not sure if it's right. It's MPEG-4 Simple Profile @L3 382kbps + AAC LC @64kbps.
These are the links:
sample MP4 (http://digilander.libero.it/Hyper_Shinchan/ep24dc_kaworu_parody.mp4)
sample MOV (http://digilander.libero.it/Hyper_Shinchan/ep24dc_kaworu_parody.mov)
I've encoded and muxed these file with 3ivX, and I've checked the option "optimize and make streamable" and the mp4 seems to be full complaint, with the BISF and OD file inside (they are the track 3 and 4).
I don't see any big difference, but I think that I should put longer file, cause my connection is 1.5 Mbp/s and the data rate is too low, I think.
Any suggestions and reports?
Kurtnoise
11th July 2005, 17:30
Why AAC-LC @64 kbps ? Did you try HE-AAC ? It's optimized for low bitrates...
Hyper Shinchan
11th July 2005, 17:50
Don't think about the quality, it's not this the point. This was the first clip that I've found (it's a RM that I've converted with graphedit to share it with some a little idiot friends that don't want to install Real Player...).
Anyway, does QT support AAC-HE? Can you give me the settings to make two good file for a test? What profiles and what lenghts of the file (and what bitrates, but i have just 50MBs of webspace, so it's better that I don't do them too large).
Tnx!
EDIT: I use always AAC-HE for myself, but I don't use it when I share something, I'm not sure that anyone can handle it.
P.S.: I've to use Nero AAC to make HE, I've used FAAC cause 3iVX reject the pins of Nero Digital audio encoder, but I can also encode the audio separetly and mux it with the video.
bond
11th July 2005, 18:03
i dont see any difference between .mov and .mp4 when playing in quicktime6
both dont start right away (i assume they are not supposed to), but play nicely after i push play
that said i dont get any audio with both
Anyway, does QT support AAC-HE? no...
Hyper Shinchan
11th July 2005, 18:08
As I thought..... so I will use AAC-LC... it supports ASP with the 3ivX plugin, right? Another question: but without this plugin, does QT support at least SP? I haven't a good confiance with it, I have to admit this, I use it only for streaming internet trailers.
bond
11th July 2005, 18:12
1) he-aac is backwards compatible. every player which plays aac can play he-aac too. therefore quicktime is able to play he-aac too
2) quicktime on its own supports simple profile video. i think when 3ivx is installed you can play b-frames too, but only if simple profile is signalled on the container level, which shouldnt be the case as it would be plainly wrong
therefore dont use advanced simple profile features (b-frames, qpel, gmc aso) when you want to play the stream in quicktime
Hyper Shinchan
11th July 2005, 18:32
Yes, QT (at least with the default settings) doesn't start automatically the playback.
that said i dont get any audio with both
You don't hear any audio? On my PC with QT7 it plays with audio.... it's strange....
I've made only once a clip for QT with SP profile compatibilty checked in Nero Recode 2, probably it uses B-frame anyway, aslo if it says that it was SP (I don't know exactly, with 3ivX I can play perfectly also XviD remuxed in mp4, but I will do like you said).
1) he-aac is backwards compatible. every player which plays aac can play he-aac too. therefore quicktime is able to play he-aac too
Of course, but it doesn't play the SBR part, right?
Another question: what browser do you use? On my PC with Firefox the mp4 doesn't start play, it want to save it on the HD. It works only with Explorer.
Tuesday
11th July 2005, 19:45
Just a quick question, to stream an MP4 (or MOV fro that matter) do you need any special server side services such as mysql etc. or can you just create a 'streamable' file and stick it up on any old server and let the client software take care of the rest?
Hyper Shinchan
11th July 2005, 19:58
I just put the file on my webspace. and it is streamed. maybe asf requires something of different, but I've not conbfiance about streaming video, I'm just starting now.
Anyway, Bond you're right. I've encoded a file with XviD with the SP@L3 and I've got a file playble on QT also without the 3iVX plugin (I've uninstalled it to check the compatibility). I think that Nero doesn't change the frame rate, SP has 15 fps max, at least XviD says so. I tplay as well on the old Platform4Player (that I think handle only SP, all my ASP aren't accepetd by this old Philips's program).
Now I will upload this new clips.
bond
11th July 2005, 22:23
You don't hear any audio? On my PC with QT7 it plays with audio.... it's strange....i used qt6
but it doesn't play the SBR part, right?yep
Another question: what browser do you use? On my PC with Firefox the mp4 doesn't start play, it want to save it on the HD. It works only with Explorer.i simply loaded the url in quicktime directly
I think that Nero doesn't change the frame rate, SP has 15 fps max, at least XviD says so. I tplay as well on the old Platform4Player (that I think handle only SP, all my ASP aren't accepetd by this old Philips's program).afaik no "simple profile" player cares about the framerate
Hyper Shinchan
12th July 2005, 09:27
Well, also if you used QT6 it's strange, it was only AAC LC....
I've deleted those old clips (that weren't fully QT compatible, assuming that I continue this test with QT), and I've uploaded this new:
MP4 sample (http://digilander.libero.it/Hyper_Shinchan/FF7AC-OfficialTrailer03.mp4)
MOV sample (http://digilander.libero.it/Hyper_Shinchan/FF7AC-OfficialTrailer03.mov) .
MPEG-4 SP@L3 147 kbp/s 15 fps, AAC LC 82kbp/s.
I'ven't ever used a lot SP, but XviD says so:
Hyper Shinchan
12th July 2005, 09:55
I've made a test with these files, and:
the MP4 with QT7 plays immediatley (Bond try to play them with the plugin, it starts automatically when it's buffered) and i'ven't found that it reach the 50% before to play like in the test of SMD.
the MOV start automatically also, while it's still buffering like the MP4.
I've tried with Dicas Mpegable, but it doesn't open the file, probably this isn't the way to put MP4 online (what is the correct way? I've to stream them from my PC directly? It's a little hard, and with QT the movie are streamed....).
With Platform4Player it plays correctly and while it's buffering (and the buffering is really faster than QT).
With VLC both the files doesn't play correctly (but like Dicas'player it is a streaming problem, from my HD with both the players the MP4 plays fine).
So, any suggestions?
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