[FFmpeg-devel] [PATCH] MMS wrapper

[Stefan Gehrer]

On 07/14/2012 01:41 PM, Michael Niedermayer wrote:
> On Sat, Jul 14, 2012 at 01:10:24PM +0200, Reimar Döffinger wrote:
>> On Sat, Jul 14, 2012 at 07:34:23AM +0200, Stefan Gehrer wrote:
>>> On 07/14/2012 01:30 AM, Don Moir wrote:
>>>> ----- Original Message ----- From: "Stefan Gehrer" <stefan.gehrer at gmx.de>
>>>> To: "FFMpeg development discussions and patches"
>>>> <ffmpeg-devel at mplayerhq.hu>
>>>> Sent: Friday, July 13, 2012 4:41 PM
>>>> Subject: [FFmpeg-devel] [PATCH] MMS wrapper
>>>>
>>>>
>>>>> attached patch implements a simple wrapper for handling mms:// URLs.
>>>>> It first tries to open using mmst protocol and on failure tries
>>>>> using mmsh protocol.
>>>>> I found some streams on tunein.com which either support only
>>>>> mmst or only mssh, with this patch applied both kinds can be
>>>>> played back with just specifying mms:// as protocol.
>>>>> This should fix ticket #998, the mms URL given there also works.
>>>>> mms://live1.wm.skynews.servecast.net/skynews_wmlz_live300k
>>>>>
>>>>> Stefan
>>>>>
>>>> Thanks
>>>>
>>>> Would mmsh be more common then mmst and maybe should be tried first even
>>>> if mmst is more efficient ?
>>>
>>> Yes, mmsh seems to be more common. But mmst usually fails after a
>>> minimal communication with server (connection on port 1755 refused)
>>
>> I don't know if it is common, but if port 1755 is blocked it might
>> actually hang until a timeout. This is less likely for port 80...
>
> a small timeout could be added to the 1755 connection attempt to
> ensure it fails quickly if it fails.

I haven't seen this yet, but of course trying to connect to that port
could time out. Current tcp default timeout seems to be five seconds.
What would be appropriate? Two seconds?

Stefan