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<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D">The file has a number of problems.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D">Here a log output from a TS checker for file ChunMyung1.ts.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D">Error Total count Description of last error
PID of last error TS Packet with last error <o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D">First Priority
<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D"> TS_sync_loss 0 -
- - <o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D"> Sync_byte_error 0 -
- - <o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D"> PAT_error_2 16 Sections with table_id 0x00 do not occur at least every 0,5 s on PID 0x0000
0x0 61325 <o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D"> PAT_error_2 [1] 16 Sections with table_id 0x00 do not occur at least every 0,5 s on PID 0x0000
0x0 61325 <o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D"> PAT_error_2 [2] 0 - -
- <o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D"> PAT_error_2 [3] 0 - -
- <o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D"> Continuity_count_error 0 -
- - <o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D"> Continuity_count_error [1] 0 -
- - <o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D"> Continuity_count_error [2] 0 -
- - <o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D"> PMT_error_2 30 Sections with table_id 0x02, (i.e. a PMT), do not occur at least every 0,5 s on each program_map_PID which
is referred to in the PAT 0x30 61325 <o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D"> PMT_error_2 [1] 30 Sections with table_id 0x02, (i.e. a PMT), do not occur at least every 0,5 s on each program_map_PID which
is referred to in the PAT 0x30 61325 <o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D"> PMT_error_2 [2] 0 - -
- <o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D"> PID_error 0 -
<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D">Furthermore – I see an usually mapping between video slices and PES packets.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D">For most files and the original (ChunMyung.ts) I see one video slice is mapped into one PES packet.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D">The modified file ChunMyung1.ts contains 30+ PES packets per video slice which may not be illegal but definitely unusual and may trip a mpeg2 TS demuxer.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D">Markus.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D"><o:p> </o:p></span></p>
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<p class="MsoNormal"><b><span style="font-size:10.0pt;font-family:"Tahoma","sans-serif"">From:</span></b><span style="font-size:10.0pt;font-family:"Tahoma","sans-serif""> live-devel-bounces@ns.live555.com [mailto:live-devel-bounces@ns.live555.com]
<b>On Behalf Of </b>Ross Finlayson<br>
<b>Sent:</b> Thursday, June 27, 2013 6:01 PM<br>
<b>To:</b> LIVE555 Streaming Media - development & use<br>
<b>Subject:</b> Re: [Live-devel] Full HD Contents. trickplay question (with VLC)<o:p></o:p></span></p>
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<p class="MsoNormal"><o:p> </o:p></p>
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<blockquote style="margin-top:5.0pt;margin-bottom:5.0pt">
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<p class="MsoNormal"><span style="font-size:10.0pt;font-family:"Courier New"">I had already conducted a test with VLC Media Player before testing with STB. (VLC v.2.0.6 and VLC v2.0.7)<o:p></o:p></span></p>
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<p class="MsoNormal"><span style="font-size:10.0pt;font-family:"Courier New""> <o:p></o:p></span></p>
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<p class="MsoNormal"><span style="font-size:10.0pt;font-family:"Courier New"">As you can see original file, 2x file is not animated as original file and 4x file is somehow animated but looks quite unnatural.<o:p></o:p></span></p>
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<p class="MsoNormal"><span style="font-size:10.0pt;font-family:"Courier New"">Could you please check it out again?<o:p></o:p></span></p>
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</blockquote>
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<p class="MsoNormal"><o:p> </o:p></p>
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<div>
<p class="MsoNormal">Yes, I see the problem that you're referring to, but unfortunately I can't figure out specifically what's wrong with the videos. So I hope someone on this mailing list (with expertise in H.264/Transport Stream video) can help diagnose
the problem.<o:p></o:p></p>
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<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal">I have put the example files online at<o:p></o:p></p>
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<p class="MsoNormal"><span class="apple-tab-span"> </span><a href="http://www.live555.com/ChunMyung/">http://www.live555.com/ChunMyung/</a><o:p></o:p></p>
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<p class="MsoNormal"><o:p> </o:p></p>
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<div>
<p class="MsoNormal">Note the file "ChunMyung1.ts". This file was created by applying 'trick play' to the original file, with a scale factor of 1 - i.e., by running:<o:p></o:p></p>
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<p class="MsoNormal"><span class="apple-tab-span"> </span>testMPEG2TransportStreamTrickPlay ChunMyung.ts 0 1 ChunMyung1.ts<o:p></o:p></p>
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<p class="MsoNormal">Because our 'trick play' works by using I-frames only, this file effectively consists just of the i-frames from the original file. If you play this file in VLC, you can see that the I-frames freeze starting at about the 10 second mark,
and do not resume until about the 1 minute mark. Does anyone know why?<o:p></o:p></p>
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<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal">For another illustration of this, note the file "ChunMyung1-30.ts". This file was created by applying 'trick play' to the original file, with a scale factor of 1, but starting at the 30 second mark - i.e., by running:<o:p></o:p></p>
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<p class="MsoNormal"><span class="apple-tab-span"> </span>testMPEG2TransportStreamTrickPlay ChunMyung.ts 30 1 ChunMyung1-30.ts<o:p></o:p></p>
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<p class="MsoNormal">If you play this file in VLC, you can see that the video is 'empty' until about the 30 second mark (i.e., corresponding to about 1 minute into the original video). Does anyone know why?<o:p></o:p></p>
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<p class="MsoNormal" style="margin-bottom:12.0pt"><o:p> </o:p></p>
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<p class="MsoNormal"><span class="apple-style-span"><span style="font-size:13.5pt;font-family:"Helvetica","sans-serif";color:black">Ross Finlayson</span></span><span style="font-size:13.5pt;font-family:"Helvetica","sans-serif";color:black"><br>
<span class="apple-style-span">Live Networks, Inc.</span><br>
<span class="apple-style-span"><a href="http://www.live555.com/">http://www.live555.com/</a></span></span>
<o:p></o:p></p>
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<p class="MsoNormal"><o:p> </o:p></p>
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