New version recoding my .TS files

AxeMaster

New member
Hi, I installed the latest v5.3.4.748a and am trying to edit some videos. I have .ts file videos from my TV HD Recorder but when I save to .ts file as well after editing, it takes ages to finish and says down the bottom that it is re-coding. Usually with previous versions, whether I save to .ts or .mpg file it finishes the process pretty quickly. Thanks for Reading, Michael.
 

Dan203

Senior Developer
Staff member
Did your cable company recently switch to MPEG4 encoding? If so you need to save to the H.264 TS profile instead. Check the source codec in the Tools->Show program info dialog.
 

AxeMaster

New member
Hi Dan, thanks very much for the reply. It seems to work a lot quicker after trying your suggestion. I would never have thought of this without your help. I realize now that the recordings I have been trying to edit are from a new free to air, terrestrial HD channel, thus the h264 encoding. Two stations are now available here in Australia. The new ABC HD and the older Standard Quality ABC. So now I save recorded videos from the normal SD transmission to .ts and the newer HD stuff to h264 .ts as you suggested. Here are the Pic's for both the SD and the new HD Channel source's: Cheers Dan. VRD .ts Source File-Standard.png VRD .ts Source File.png
 
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tobyW

Member
Hi AxeMaster, welcome to the confusing world of new Aussie channels.

You will soon discover that HD can be either h264 or mpeg2, depending on the channel. Also, HD can mean either 1920x1080 or 1440x1080 and this can even change in the middle of a series (e.g. recent "Outlander" on SBS HD).

The audio may include one or more combinations of mpeg-1 or AAC or AC-3, carrying 2-channel stereo or joint stereo or 5.1 surround, or different languages or other information (e.g. 7Flix).

I find it convenient to use one common output profile for all the QSF-ing and editing operations, regardless of what Aussie channel it's from. I can't remember whether it was installed by VRD, or whether I created it, but anyway the profile is called "Transport stream match source", and if you haven't already got it you might like to import it into your list of profiles in VRD.

I can't seem to upload the file for this post, so just copy the following into a text file named "Transport stream match source.OP.xml" in Notepad. Then in VRD, go Tools->EditOutputProfiles->Import-> and select the file, to import it.

<VRDOutputProfile enabled="true">
<Name>Transport stream match source</Name>
<OutputMode>Smart</OutputMode>
<RecodeMode>Quality</RecodeMode>
<FileType>TS</FileType>
<FileExt></FileExt>
<OutputLibrary>
<Program>None</Program>
<CustomPath></CustomPath>
</OutputLibrary>
<DefaultOutputDir></DefaultOutputDir>
<VideoAttributes>
<Encoder>Match</Encoder>
<AspectRatio>No Change</AspectRatio>
<AspectCorrection>None</AspectCorrection>
<EncodeDimensions>
<Width>3840</Width>
<Height>2160</Height>
</EncodeDimensions>
<EncodeBitrate>0</EncodeBitrate>
<HeaderBitrate>0</HeaderBitrate>
<MaxBitrate>0</MaxBitrate>
<EncodingMode>SP</EncodingMode>
<DeinterlaceMethod>None</DeinterlaceMethod>
<FrameRate>No Change</FrameRate>
</VideoAttributes>
<AudioAttributes>
<Encoder>Auto</Encoder>
<Bitrate>0</Bitrate>
<SampleRate>No Change</SampleRate>
<ChannelMode>Auto</ChannelMode>
<LPCMEndianess>Little</LPCMEndianess>
</AudioAttributes>
</VRDOutputProfile>
 
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Dan203

Senior Developer
Staff member
FYI in the latest beta you can now setup "match source" profiles. These will pass through the orignal video codec regardless of whether it's MPEG-2 or H.264, so you can use a single profile to process any file without recoding.
 

AxeMaster

New member
Hi, I just have one last question. I'm pretty happy with the editing now. It seems to be working quite well with the new HD video files. I have been saving them as H264 .m2ts files which is the default saving for this HD source file. What I have noticed while watching the editing process, it encodes 1/9 right up to 9/9, which I don't understand what is happening there. Why is the encoding in 9 parts? (although the final output is only the 1 video file which is what I want anyway). Thanks.
 
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tobyW

Member
What I have noticed while watching the editing process, it encodes 1/9 right up to 9/9, which I don't understand what is happening there. Why is the encoding in 9 parts? (although the final output is only the 1 video file which is what I want anyway). Thanks.
Look again. After you click Save to start encoding, watch the dialog box very closely, above the Pause button.

At the join point, it has to re-encode a handful of frames around the join, so it briefly says Decoding, then briefly says Encoding, then it quickly Encodes each of those frames (e.g. 1 to 9), then it proceeds to a Fast Frame Copy of the body of the Scene. (The current Scene number is displayed above the Abort button.)
 

Dan203

Senior Developer
Staff member
The process of encoding those few frames is slow in H.264 because the process is more complex and we have to use a slow encoder to make it work.
 
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