XPost: alt.comp.os.windows-11   
   From: nospam@needed.invalid   
      
   On Fri, 2/28/2025 6:24 AM, Frank Slootweg wrote:   
   > Daniel70  wrote:   
   >> On 28/02/2025 1:05 am, Frank Slootweg wrote:   
   >>> Daniel70  wrote:   
   >>>> On 27/02/2025 2:29 am, Frank Slootweg wrote:   
   >>> [...]   
   >>>>>     Anyway, have you tried to just right-click the file in File Explorer,   
   >>>>> select Properties and look at the 'Details' tab? For a normal video   
   >>>>> file, File Explorer will mention the Length, Frame width and height,   
   >>>>> Data rate, Total bitrate, Frame rate and Audio specs.   
   >>>>   
   >>>> General Details   
   >>>> vid000.mp4 (name changed as suggested by others)   
   >>>> Type of file:   TS file (.ts)   
   >>>> Open with:      Media Player (Button "Change" which gives option to use   
   Media   
   >>>> Player, VLC Media Player, Windows Media Player Legacy, Firefox, Notepad,   
   >>>> Word)   
   >>>> Location: On a sub-directory of my USB Drive   
   >>>> Size:   113MB (118,876,060 bytes)   
   >>>> Size on Disk:   113MB (118,882,304 bytes)   
   >>>> Created: Last Friday   
   >>>> Modified:       Last Friday   
   >>>> Accessed:       Yesterday   
   >>>   
   >>>    You say "General Details", but you mentioned info from the 'General'   
   >>> tab, while I referred to the 'Details' tab.   
   >>   
   >> Yes, you are quite correct, there are two tabs (Oh! My failing   
   >> eyesight!!) 'General' and 'Details'   
   >   
   >   Sorry, I hadn't yet seen this post when I wrote my '1. ... 2. ... 3.   
   > ...' post. Your post answers part of item1..   
   >   
   >> Listed above is the info as presented by the *General Tab* . The info on   
   >> the 'Details' tab includes ....   
   >>   
   >> Video   
   >> Length  00:00:00   
   >   
   >   This is clearly wrong! If the length is zero, not wonder you don't   
   > see/hear anything when you play the file.   
   >   
   >   So you must find out why the length is zero (but the size is 113MB).   
   >   
   >> Frame width     730   
   >> Frame height    576   
   >> Data rate       5000kbps   
   >> Total bitrate   5000kbps   
   >> Frame rate      25.00 frames/second   
   >>   
   >> Audio   
   >> Bit rate   
   >> Channels        2 (stereo)   
   >> Audio sample rate       32.000kHz   
   >>   
   >> Media .... Contributing artists, Year, Genre .... all empty   
   >>   
   >> Origin ... Directors, Producers, Writers, Publishers, Content provider,   
   >> Media created, Encoded by, Author URL, Promotion URL, Copyright .... all   
   >> empty   
   >>   
   >> Content .... Parental rating, Parental rating reason, Composers,   
   >> Conductors, Period, Moon, Part of set, Initial key, Beats-per-minute,   
   >> Protected .... all empty.   
   >>   
   >> File   
   >> Name            Vid000.mp4.ts    <------   
   >   
   >   That explains why the 'General' tab says "Type of file: TS file (.ts)",   
   > because the name was not vid000.mp4, as you said, but Vid000.mp4.ts.   
   >   
   >> Item type       TS File   
   >> File location   My USB Drive   
   >> Size            113 MB   
   >> Date created    21/02/2025 5:16 PM   
   >> Date  modified  21/02/2025 5:16 PM   
   >> Attributes      A   
   >> Availability   
   >> Offline status   
   >> Shared with   
   >> Owner           Everyone   
   >> Computer        This one   
   >>   
   >> (and underneath all this there is a link to 'Remove Properties and   
   >> Personal Information')   
   >>   
   >>>    Also see my response to Paul about the discrepancy between the .mp4   
   >>> extension of the file and you reporting "Type of file: TS file (.ts)"   
   >>   
   >> Yeap, as I highlighted above, so does that mean that (really) NOTHING   
   >> with-in the file changed??   
   >   
   >   Changing the extension does indeed not change the content of the file,   
   > but might (or might not) cause the player software to understand what   
   > type of file it is.   
      
   The Windows Properties filter is picking up some info and not others.   
   This suggests "selective encryption" is at work, and it is a .ts file.   
      
   If you feed the .ts filter a file which is not .ts in any way,   
   the output is blank. The filter does not populate the fields, without   
   some evidence it is a Transport Stream.   
      
   Daniels file is populating the fields, but with suspicious or outright   
   wrong values. Which suggests the Microsoft filter or libAV is not able   
   to read everything it needs to read.   
      
   The duration of 0:00:00 means it cannot read the timestamps   
   inside the frames. Maybe it is scanning for the last intact   
   frame in the stream, and hopes to extract a timestamp from it.   
      
   The datarate of the file, is highly unlikely to be a "round" integer   
   number. That's bullshit right there.   
      
   If the filter had admitted the content was AAC encoded and had   
   a stardard bitrate, I might have believed it possible to play the   
   video. But I don't think enough info in that Properties is   
   correct, for any Windows tool [VLC, ffplay] to  play it.   
      
      Paul   
      
   --- SoupGate-DOS v1.05   
    * Origin: you cannot sedate... all the things you hate (1:229/2)