Comments for Alex Zambelli's Microsoft Media Blog http://alexzambelli.com/blog Microsoft Media Platform, streaming video, Silverlight, VC-1, H.264, Smooth Streaming, Windows Media Tue, 03 Jan 2012 04:55:03 -0800 hourly 1 http://wordpress.org/?v=3.1 Comment on H2 2011 Product Update Roundup by Marc Oliver http://alexzambelli.com/blog/2011/12/05/h2-2011-product-update-roundup/comment-page-1/#comment-43888 Marc Oliver Tue, 03 Jan 2012 04:55:03 +0000 http://alexzambelli.com/blog/?p=236#comment-43888 Hello Alex, Along the same lines,, It's been a while since the last one. BTW great blogpost Hello Alex,
Along the same lines,, It’s been a while since the last one.
BTW great blogpost

]]> Comment on H2 2011 Product Update Roundup by Mani L http://alexzambelli.com/blog/2011/12/05/h2-2011-product-update-roundup/comment-page-1/#comment-43887 Mani L Fri, 30 Dec 2011 09:54:44 +0000 http://alexzambelli.com/blog/?p=236#comment-43887 Hi Alex, Much helpful posts! Thanks. Do you have any recommendation on media players to have closed caption enabled? I try to play Smooth Streming contents with ISMT created using Transform Manager (using .SCC as source). When tried playing on SmoothStreaming player, not able to see CC texts. Thanks Again. Mani L Hi Alex,
Much helpful posts! Thanks.
Do you have any recommendation on media players to have closed caption enabled? I try to play Smooth Streming contents with ISMT created using Transform Manager (using .SCC as source). When tried playing on SmoothStreaming player, not able to see CC texts.

Thanks Again.
Mani L

]]> Comment on Smooth Streaming FAQ by Alex Zambelli http://alexzambelli.com/blog/smooth-streaming-faq/comment-page-1/#comment-43880 Alex Zambelli Sat, 17 Dec 2011 07:38:36 +0000 http://alexzambelli.com/blog/?page_id=100#comment-43880 There is no file size limitation that I'm aware of, other than potential file system (FAT32, namely) file size limits. There is no file size limitation that I’m aware of, other than potential file system (FAT32, namely) file size limits.

]]> Comment on Smooth Streaming Architecture by Alex Zambelli http://alexzambelli.com/blog/2009/02/10/smooth-streaming-architecture/comment-page-1/#comment-43879 Alex Zambelli Sat, 17 Dec 2011 07:37:44 +0000 http://alexzambelli.com/blog/?p=36#comment-43879 Hi Aviad, 1) If you install Expression Encoder (even the free version), it comes with an ISMV DirectShow source filter. That'll allow you play ISMV files locally with any DShow-based player, including WMP. 2) I hear M4Scene's Scenescope is an excellent tool for probing into MP4-based formats. http://www.m4scene.com/product/show?class=SceneScope 3) Hmm, I'm not aware of one, unfortunately. Though that sounds like it'd make a good ffmpeg or mp4box project for someone. The ISMV format, or the PIFF format as we officially call it, is actually compatible with the UltraViolet CFF format and the ISO Base Media File container described in MPEG-DASH, so supporting this would definitely help beyond just Smooth Streaming. Hi Aviad,

1) If you install Expression Encoder (even the free version), it comes with an ISMV DirectShow source filter. That’ll allow you play ISMV files locally with any DShow-based player, including WMP.
2) I hear M4Scene’s Scenescope is an excellent tool for probing into MP4-based formats. http://www.m4scene.com/product/show?class=SceneScope
3) Hmm, I’m not aware of one, unfortunately. Though that sounds like it’d make a good ffmpeg or mp4box project for someone. The ISMV format, or the PIFF format as we officially call it, is actually compatible with the UltraViolet CFF format and the ISO Base Media File container described in MPEG-DASH, so supporting this would definitely help beyond just Smooth Streaming.

]]> Comment on Smooth Streaming FAQ by Nitesh http://alexzambelli.com/blog/smooth-streaming-faq/comment-page-1/#comment-40378 Nitesh Tue, 08 Nov 2011 04:27:49 +0000 http://alexzambelli.com/blog/?page_id=100#comment-40378 Hi, Is there any file size limitation in IIS Smooth Streaming? In case my file is in 10GB in size, is it possible for IIS Smooth Streaming to handle them effectively? Thanks, Nitesh Hi,

Is there any file size limitation in IIS Smooth Streaming?

In case my file is in 10GB in size, is it possible for IIS Smooth Streaming to handle them effectively?

Thanks,
Nitesh

]]> Comment on Smooth Streaming Architecture by aviad http://alexzambelli.com/blog/2009/02/10/smooth-streaming-architecture/comment-page-1/#comment-39855 aviad Thu, 03 Nov 2011 14:58:48 +0000 http://alexzambelli.com/blog/?p=36#comment-39855 I'm looking for tools that can make sense of the smooth streaming files [.ism, .ismc .ismv] without going through IIS. 1) A player that can play from local files 2) a probing tool that can print out the packets in an .ismv file 3) a transmuxer that can take an .ismv file as input an produce a simple .mov file without moof and microsoft-specific atoms are you aware of any such tools existing? the "IIS Smooth Streaming Format SDK API" works great for muxing ssmf files. is there an equivalent API for demuxing? I’m looking for tools that can make sense of the smooth streaming files [.ism, .ismc .ismv] without going through IIS.
1) A player that can play from local files
2) a probing tool that can print out the packets in an .ismv file
3) a transmuxer that can take an .ismv file as input an produce a simple .mov file without moof and microsoft-specific atoms

are you aware of any such tools existing?

the “IIS Smooth Streaming Format SDK API” works great for muxing ssmf files. is there an equivalent API for demuxing?

]]> Comment on Smooth Streaming Architecture by Alex Zambelli http://alexzambelli.com/blog/2009/02/10/smooth-streaming-architecture/comment-page-1/#comment-37522 Alex Zambelli Tue, 11 Oct 2011 05:20:46 +0000 http://alexzambelli.com/blog/?p=36#comment-37522 Hi Rohan, 1) Microsoft provides a <a href="http://www.iis.net/TransformManager" rel="nofollow">Transform Manager</a> task which can convert GOP-aligned MP4s into Smooth Streaming assets. There is no Microsoft-supported way of serving Smooth Streaming video without IIS. 2) DRM encryption is applied on a sample level, rather than a fragment or file level. I also recommend exploring Transform Manager in this case, as it provides a DRM task too. Hi Rohan,

1) Microsoft provides a Transform Manager task which can convert GOP-aligned MP4s into Smooth Streaming assets. There is no Microsoft-supported way of serving Smooth Streaming video without IIS.

2) DRM encryption is applied on a sample level, rather than a fragment or file level. I also recommend exploring Transform Manager in this case, as it provides a DRM task too.

]]> Comment on Smooth Streaming FAQ by Alex Zambelli http://alexzambelli.com/blog/smooth-streaming-faq/comment-page-1/#comment-37521 Alex Zambelli Tue, 11 Oct 2011 05:14:57 +0000 http://alexzambelli.com/blog/?page_id=100#comment-37521 I don't recall Windows Server being a requirement for Live Smooth Streaming - it only requires IIS7.x, and that can be installed on any Windows OS since Vista. Windows XP will never be supported for IIS Media Services, sorry. I don’t recall Windows Server being a requirement for Live Smooth Streaming – it only requires IIS7.x, and that can be installed on any Windows OS since Vista. Windows XP will never be supported for IIS Media Services, sorry.

]]> Comment on Smooth Streaming FAQ by Aria Sarshar http://alexzambelli.com/blog/smooth-streaming-faq/comment-page-1/#comment-37059 Aria Sarshar Thu, 06 Oct 2011 17:29:33 +0000 http://alexzambelli.com/blog/?page_id=100#comment-37059 Thanks a lot for this collection of useful questions and answers... I implemented a demo on my Windows 7 for an on-demand streaming but in order to stream live contents I needed to have Windows server 2008 and IIS 7 (in order to install WebDAV), would you add Windows 7, Windows XP and Vista in you list for supported OS in order to streaming on-demand contents. Thanks a lot for this collection of useful questions and answers…

I implemented a demo on my Windows 7 for an on-demand streaming but in order to stream live contents I needed to have Windows server 2008 and IIS 7 (in order to install WebDAV), would you add Windows 7, Windows XP and Vista in you list for supported OS in order to streaming on-demand contents.

]]> Comment on Smooth Streaming Architecture by rohan http://alexzambelli.com/blog/2009/02/10/smooth-streaming-architecture/comment-page-1/#comment-36898 rohan Wed, 05 Oct 2011 00:15:57 +0000 http://alexzambelli.com/blog/?p=36#comment-36898 Hi Alex, I had a few questions and would appreciate if you can provide some guidance. 1> Is there an API from Microsoft using which the smooth fragments can be pre-created from the MP4 file? i.e. is there any way to do smooth streaming without using IIS? 2> How is playready DRM to be used here? i.e. can a playready-encrypted file be used as an input to smooth streaming? or is it that once fragments are created, then each fragment will have to be DRM-encrypted? Thank you- Hi Alex,

I had a few questions and would appreciate if you can provide some guidance.

1> Is there an API from Microsoft using which the smooth fragments can be pre-created from the MP4 file? i.e. is there any way to do smooth streaming without using IIS?

2> How is playready DRM to be used here? i.e. can a playready-encrypted file be used as an input to smooth streaming? or is it that once fragments are created, then each fragment will have to be DRM-encrypted?

Thank you-

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