1 |
On Tue, May 1, 2012 at 2:31 PM, Stroller <stroller@××××××××××××××××××.uk> wrote: |
2 |
> |
3 |
> On 1 May 2012, at 18:51, Michael Mol wrote: |
4 |
>>> … |
5 |
>>> I am certainly able to play back .wmv files here without win32codecs installed. Admittedly, I'm using xbmc to do that, and haven't recently tested using VLC or mplayer, but I would avoid installing that package unless I was sure I needed it. |
6 |
>> |
7 |
>> … |
8 |
>> WMV, mp4, WAV, etc. are all names given to container formats. WMV |
9 |
>> might contain h264 internally, or it might contain one of the |
10 |
>> "Microsoft Video" codecs, … |
11 |
> |
12 |
> Actually, WMV appears not to be a container format - but a family of codecs. |
13 |
> |
14 |
> Apparently the .wmv files we see distributed on the net are most always WMV codec video contained in a ASF container. |
15 |
> |
16 |
> http://en.wikipedia.org/wiki/.wmv |
17 |
|
18 |
Ah, right, my mistake. |
19 |
|
20 |
> |
21 |
> I don't believe I've ever encountered a .wmv file containing h264. One probably wouldn't actually notice, in normal use, if one did receive such a file, assuming it worked when one clicked on it. |
22 |
> |
23 |
> However I find it extremely unlikely to imagine anyone putting h264 in a .wmv file (or an ASF container). We all commonly put h264 in .mp4 or .mkv containers. |
24 |
|
25 |
You've never been deep into AMVs, I take it. If a codec can be shoved |
26 |
into a container, I've probably had a sample of it at one time or |
27 |
another. |
28 |
|
29 |
> |
30 |
>> Sometimes that's because of patent issues, sometimes that's because |
31 |
>> there aren't enough useful samples, and sometimes that's because |
32 |
>> nobody cares about a codec nobody's seriously used since 1997. |
33 |
> |
34 |
> I'm pretty sure we're able to play back WMV7, WMV9 / AC-1 videos without these binary decoders. It's probably not very useful to talk about codecs "nobody's seriously used since 1997." I *am* pretty sure that upstream mplayer *do* generally say "don't bother with the win32codecs". |
35 |
|
36 |
Actually, a lot of upstream hacks on stuff for reasons ranging from |
37 |
completeness to plain and simple fun. Check out multimedia.cx, follow |
38 |
the blogs. |
39 |
|
40 |
> The goal here to to get Mark's video playing, and he's given no indication it's some old file he found on a 1998 system. |
41 |
|
42 |
Sure. But when I give an explanation, I give background. Give a fire, |
43 |
teach to make a fire...Gentoo tends to be far more about teaching to |
44 |
make fires than simply providing them. Though sometimes it uses you |
45 |
for kindling. |
46 |
|
47 |
-- |
48 |
:wq |