![]() | This article is rated Stub-class on Wikipedia's
content assessment scale. It is of interest to the following WikiProjects: | ||||||||||||||||
|
I added a source on Video 1 support in NetShow. It says that MS Video 1 is supported through the Video for Windows (VfW) framework, as a Video Compression Manager (VCM). The VfW MS Video 1 encoder shipped with Windows (msvidc32.dll, Version 1.0) only has a single setting in its configuration dialog, "Temporal Quality Ratio". Was there maybe another encoder shipped with NetShow? Or, did NetShow peform a first pass to determine the palette to use, without calling the MS Video 1 encoder at all?
Also, the article mentions that MS Video 1 was "scalable during the encoding process". The decoder, as implemented in libav / ffmpeg, has no signs of scalability. So, what is meant by scalability? Did the encoder generate a base layer and an enhancement layer as two separate MS Video 1 bit streams? Or did the encoder generate a low and a high-quality bitstream that are completely unrelated to each other ("simulcast")? Or does "scalable" simply refer to changing the video resolution (downsampling) for encoding?
Conquerist (
talk) 15:38, 25 March 2014 (UTC)
![]() | This article is rated Stub-class on Wikipedia's
content assessment scale. It is of interest to the following WikiProjects: | ||||||||||||||||
|
I added a source on Video 1 support in NetShow. It says that MS Video 1 is supported through the Video for Windows (VfW) framework, as a Video Compression Manager (VCM). The VfW MS Video 1 encoder shipped with Windows (msvidc32.dll, Version 1.0) only has a single setting in its configuration dialog, "Temporal Quality Ratio". Was there maybe another encoder shipped with NetShow? Or, did NetShow peform a first pass to determine the palette to use, without calling the MS Video 1 encoder at all?
Also, the article mentions that MS Video 1 was "scalable during the encoding process". The decoder, as implemented in libav / ffmpeg, has no signs of scalability. So, what is meant by scalability? Did the encoder generate a base layer and an enhancement layer as two separate MS Video 1 bit streams? Or did the encoder generate a low and a high-quality bitstream that are completely unrelated to each other ("simulcast")? Or does "scalable" simply refer to changing the video resolution (downsampling) for encoding?
Conquerist (
talk) 15:38, 25 March 2014 (UTC)