<div dir="ltr"><div class="gmail_extra"><div class="gmail_quote">On Sun, Feb 7, 2016 at 2:49 AM, HP-mini <span dir="ltr"><<a href="mailto:blm-ubunet@slingshot.co.nz" target="_blank">blm-ubunet@slingshot.co.nz</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left-width:1px;border-left-color:rgb(204,204,204);border-left-style:solid;padding-left:1ex"><div class=""><div class="h5">On Sat, 2016-02-06 at 22:27 +0000, John Pilkington wrote:<br>
> A bit more info:<br>
><br>
> ionice -c3 mythtranscode -m --video -i WFXVsample1.mpg -o<br>
> WFXVsample1_mtr.mpg<br>
><br>
> A few complaints in the log (below) and no mention of text or<br>
> unidentified streams.<br>
><br>
> Both play smoothly as videos in 0.28-beta, but with stuff like this:<br>
><br>
> 2016-02-06 22:19:38.945840 I AFD: Key frame distance changed from 12 to 30.<br>
> 2016-02-06 22:19:40.152658 I AFD: Key frame distance changed from 30 to 12.<br>
> 2016-02-06 22:19:40.648977 I AFD: Key frame distance changed from 12 to 30.<br>
> 2016-02-06 22:19:40.850891 I AFD: Key frame distance changed from 30 to 12.<br>
> 2016-02-06 22:19:41.346665 I AFD: Key frame distance changed from 12 to 30.<br>
> 2016-02-06 22:19:42.472599 I Player(1): FPS: 59.82 Mean: 16717<br>
> Std.Dev: 5783 CPUs: 22% 24%<br>
><br>
><br>
><br>
> 2016-02-06 21:43:32.058930 N Transcoding from<br>
> /home/john/SGs/VideosSG1/WFXVsample1.mpg to WFXVsample1_mtr.mpg<br>
> 2016-02-06 21:43:32.061479 I Opening<br>
> /home/john/SGs/VideosSG1/WFXVsample1.mpg<br>
> 2016-02-06 21:43:32.294504 I PES packet size mismatch<br>
> 2016-02-06 21:43:32.301206 I Input #0, mpegts, from<br>
> '/home/john/SGs/VideosSG1/WFXVsample1.mpg':<br>
> 2016-02-06 21:43:32.301222 I Duration: 00:00:54.50, start:<br>
> 17800.699322, bitrate: 15030 kb/s<br>
> 2016-02-06 21:43:32.301363 I Stream #0:0[0x6f]: Video: mpeg2video<br>
> (Main), yuv420p(tv), 1280x720 [SAR 1:1 DAR 16:9], max. 14950 kb/s, 59.94<br>
> fps, 59.94 tbr, 90k tbn, 119.88 tbc<br>
> 2016-02-06 21:43:32.301396 I Stream #0:1[0x70](eng): Audio: ac3,<br>
> 48000 Hz, 5.1(side), fltp, 384 kb/s<br>
> 2016-02-06 21:43:32.301420 I Stream #0:2[0x71](spa): Audio: ac3,<br>
> 48000 Hz, stereo, fltp, 192 kb/s<br>
> 2016-02-06 21:43:32.317029 I #0 PTS:04:56:41.131 Delta: 0.0ms queue: 38<br>
> 2016-02-06 21:43:32.317060 I #1 PTS:04:56:41.115 Delta: 15.8556ms queue: 2<br>
> 2016-02-06 21:43:32.317074 I #2 PTS:04:56:41.100 Delta: 31.1222ms queue: 4<br>
> 2016-02-06 21:43:32.317107 N MPEG2fixup::InitReplex(): High Definition<br>
> input, increasing replex buffers<br>
> 2016-02-06 21:43:32.343413 I Mux rate: 15.78 Mbit/s<br>
> 2016-02-06 21:43:33.479178 I AVFrame.format is not set<br>
> 2016-02-06 21:43:33.479186 I AVFrame.width or height is not set<br>
> 2016-02-06 21:43:33.481505 I AVFrame.format is not set<br>
> 2016-02-06 21:43:33.481514 I AVFrame.width or height is not set<br>
> 2016-02-06 21:43:33.526941 I Inserting 0 I-Frames after #26<br>
> 2016-02-06 21:43:34.051092 I PES packet size mismatch<br>
> 2016-02-06 21:43:34.051111 I PES packet size mismatch<br>
> 2016-02-06 21:43:34.067022 I Generating Keyframe Index<br>
> 2016-02-06 21:43:34.067036 I Opening WFXVsample1_mtr.mpg<br>
> 2016-02-06 21:43:34.104892 I Input #0, mpeg, from 'WFXVsample1_mtr.mpg':<br>
> 2016-02-06 21:43:34.104910 I Duration: 00:00:54.10, start: 0.360000,<br>
> bitrate: 14930 kb/s<br>
> 2016-02-06 21:43:34.104972 I Stream #0:0[0x1e0]: Video: mpeg2video<br>
> (Main), yuv420p(tv), 1280x720 [SAR 1:1 DAR 16:9], max. 14950 kb/s, 59.94<br>
> fps, 59.94 tbr, 90k tbn, 119.88 tbc<br>
> 2016-02-06 21:43:34.104998 I Stream #0:1[0x81]: Audio: ac3, 48000<br>
> Hz, stereo, fltp, 192 kb/s<br>
> 2016-02-06 21:43:34.105019 I Stream #0:2[0x80]: Audio: ac3, 48000<br>
> Hz, 5.1(side), fltp, 384 kb/s<br>
> 2016-02-06 21:43:34.308263 N Transcode Completed<br>
> 2016-02-06 21:43:34.335123 N Transcoding<br>
> /home/john/SGs/VideosSG1/WFXVsample1.mpg done<br>
><br>
<br>
</div></div>That 60p sample plays fine here (Videos) in master with ffmpeg CPU &<br>
VDPAU.<br>
I did not try the file with dummy recorder.<br>
I noticed that the OP was using ffmpeg CPU decode.<br>
CPU decode here uses 35% on mid-range core2duo, no jitter problems (OSD<br>
playback meter).</blockquote><div><br></div><div>Thanks for the info. I just monitored the CPU usage on my MythTV box while a few different videos were playing, and it was consistently in the 5%-10% range except for the moment the video started.</div><div><br></div><div>This is what I see when I play the sample I posted, while it's being all weird and choppy:</div><div><br></div><div>2016-02-07 15:28:16.094440 I Player(2): FPS: 30.22 Mean: 33090 Std.Dev: 1930 CPUs: 101% 100% </div><div>2016-02-07 15:28:22.128193 I Player(2): FPS: 39.61 Mean: 25243 Std.Dev: 8344 CPUs: 8% 9% 6% </div><div>2016-02-07 15:28:28.678682 I Player(2): FPS: 36.49 Mean: 27405 Std.Dev: 7991 CPUs: 7% 7% 8% </div><div>2016-02-07 15:28:35.579324 I Player(2): FPS: 34.64 Mean: 28871 Std.Dev: 7393 CPUs: 5% 6% 7% </div><div>2016-02-07 15:28:40.979659 I Player(2): FPS: 44.26 Mean: 22593 Std.Dev: 7991 CPUs: 8% 9% 9% </div><div>2016-02-07 15:28:46.680104 I Player(2): FPS: 41.93 Mean: 23849 Std.Dev: 8265 CPUs: 8% 8% 7% </div><div>2016-02-07 15:28:53.130608 I Player(2): FPS: 37.05 Mean: 26987 Std.Dev: 8102 CPUs: 8% 7% 9% </div><div>2016-02-07 15:28:59.281147 I Player(2): FPS: 38.86 Mean: 25732 Std.Dev: 8317 CPUs: 7% 9% 8%</div></div><br></div><div class="gmail_extra">Note the 30-40 FPS, when it's supposed to be 60.</div><div class="gmail_extra"><br></div><div class="gmail_extra">This is what happens when I play the 30 FPS recording from a different channel, which plays fine:</div><div class="gmail_extra"><br></div><div class="gmail_extra"><div class="gmail_extra">2016-02-07 15:29:20.983329 I Player(2): FPS: 28.97 Mean: 34520 Std.Dev: 19131 CPUs: 266% 100% 100% </div><div class="gmail_extra">2016-02-07 15:29:25.017039 I Player(2): FPS: 29.50 Mean: 33894 Std.Dev: 3016 CPUs: 12% 8% 10% </div><div class="gmail_extra">2016-02-07 15:29:29.000619 I Player(2): FPS: 29.88 Mean: 33472 Std.Dev: 1534 CPUs: 8% 8% 9% </div><div class="gmail_extra">2016-02-07 15:29:33.101074 I Player(2): FPS: 29.02 Mean: 34454 Std.Dev: 4190 CPUs: 9% 7% 9% </div><div class="gmail_extra">2016-02-07 15:29:37.067977 I Player(2): FPS: 30.00 Mean: 33332 Std.Dev: 75 CPUs: 10% 9% 11% </div><div class="gmail_extra">2016-02-07 15:29:41.034890 I Player(2): FPS: 30.00 Mean: 33332 Std.Dev: 73 CPUs: 8% 9% 10% </div><div class="gmail_extra">2016-02-07 15:29:45.051846 I Player(2): FPS: 29.63 Mean: 33753 Std.Dev: 2633 CPUs: 10% 8% 10% </div><div class="gmail_extra">2016-02-07 15:29:49.118807 I Player(2): FPS: 29.26 Mean: 34173 Std.Dev: 3669 CPUs: 9% 8% 9%</div><div class="gmail_extra"><br></div><div class="gmail_extra">And this is what happens when I play the transcoded version of the problematic video:</div><div class="gmail_extra"><br></div><div class="gmail_extra"><div class="gmail_extra">2016-02-07 15:30:22.154231 I Player(2): FPS: 59.51 Mean: 16803 Std.Dev: 1911 CPUs: 100% 100% 100% </div><div class="gmail_extra">2016-02-07 15:30:26.137813 I Player(2): FPS: 60.00 Mean: 16665 Std.Dev: 95 CPUs: 11% 11% 10% </div><div class="gmail_extra">2016-02-07 15:30:30.138094 I Player(2): FPS: 59.75 Mean: 16735 Std.Dev: 1079 CPUs: 11% 12% 12% </div><div class="gmail_extra">2016-02-07 15:30:34.138641 I Player(2): FPS: 59.75 Mean: 16736 Std.Dev: 1064 CPUs: 10% 12% 13% </div><div class="gmail_extra">2016-02-07 15:30:38.122093 I Player(2): FPS: 60.01 Mean: 16664 Std.Dev: 96 CPUs: 11% 11% 11% </div><div class="gmail_extra">2016-02-07 15:30:42.105712 I Player(2): FPS: 60.00 Mean: 16665 Std.Dev: 97 CPUs: 11% 12% 13% </div><div class="gmail_extra">2016-02-07 15:30:46.089376 I Player(2): FPS: 60.00 Mean: 16665 Std.Dev: 92 CPUs: 12% 11% 16% </div><div class="gmail_extra">2016-02-07 15:30:50.073166 I Player(2): FPS: 60.00 Mean: 16666 Std.Dev: 140 CPUs: 15% 12% 12%</div><div class="gmail_extra"><br></div><div class="gmail_extra">It maintains 60 FPS and there are no playback issues at all. So there seems to be something about recorded video from this channel which causes a massive drop in framerate on this particular PC, and whatever this issue is, it's corrected by mythtranscode. Any thoughts? Just a wild guess, but is it possible the CPU in this PC is missing an instruction set which is needed for efficiently decoding the video stream from this channel?</div><div class="gmail_extra"><br></div><div class="gmail_extra">The continued help is much appreciated.</div><div class="gmail_extra"><br></div><div class="gmail_extra">For the record, here's the CPU info for this box:</div><div class="gmail_extra"><br></div><div class="gmail_extra"><div class="gmail_extra"># cat /proc/cpuinfo</div><div class="gmail_extra">processor<span class="" style="white-space:pre"> </span>: 0</div><div class="gmail_extra">vendor_id<span class="" style="white-space:pre"> </span>: AuthenticAMD</div><div class="gmail_extra">cpu family<span class="" style="white-space:pre"> </span>: 16</div><div class="gmail_extra">model<span class="" style="white-space:pre"> </span>: 4</div><div class="gmail_extra">model name<span class="" style="white-space:pre"> </span>: AMD Phenom(tm) II X3 B73 Processor</div><div class="gmail_extra">stepping<span class="" style="white-space:pre"> </span>: 2</div><div class="gmail_extra">microcode<span class="" style="white-space:pre"> </span>: 0x10000db</div><div class="gmail_extra">cpu MHz<span class="" style="white-space:pre"> </span>: 2800.000</div><div class="gmail_extra">cache size<span class="" style="white-space:pre"> </span>: 512 KB</div><div class="gmail_extra">physical id<span class="" style="white-space:pre"> </span>: 0</div><div class="gmail_extra">siblings<span class="" style="white-space:pre"> </span>: 3</div><div class="gmail_extra">core id<span class="" style="white-space:pre"> </span>: 0</div><div class="gmail_extra">cpu cores<span class="" style="white-space:pre"> </span>: 3</div><div class="gmail_extra">apicid<span class="" style="white-space:pre"> </span>: 0</div><div class="gmail_extra">initial apicid<span class="" style="white-space:pre"> </span>: 0</div><div class="gmail_extra">fpu<span class="" style="white-space:pre"> </span>: yes</div><div class="gmail_extra">fpu_exception<span class="" style="white-space:pre"> </span>: yes</div><div class="gmail_extra">cpuid level<span class="" style="white-space:pre"> </span>: 5</div><div class="gmail_extra">wp<span class="" style="white-space:pre"> </span>: yes</div><div class="gmail_extra">flags<span class="" style="white-space:pre"> </span>: fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush mmx fxsr sse sse2 ht syscall nx mmxext fxsr_opt pdpe1gb rdtscp lm 3dnowext 3dnow constant_tsc rep_good nopl nonstop_tsc extd_apicid pni monitor cx16 popcnt lahf_lm cmp_legacy svm extapic cr8_legacy abm sse4a misalignsse 3dnowprefetch osvw ibs skinit wdt hw_pstate npt lbrv svm_lock nrip_save</div><div class="gmail_extra">bogomips<span class="" style="white-space:pre"> </span>: 5585.95</div><div class="gmail_extra">TLB size<span class="" style="white-space:pre"> </span>: 1024 4K pages</div><div class="gmail_extra">clflush size<span class="" style="white-space:pre"> </span>: 64</div><div class="gmail_extra">cache_alignment<span class="" style="white-space:pre"> </span>: 64</div><div class="gmail_extra">address sizes<span class="" style="white-space:pre"> </span>: 48 bits physical, 48 bits virtual</div><div class="gmail_extra">power management: ts ttp tm stc 100mhzsteps hwpstate</div><div class="gmail_extra"><br></div><div class="gmail_extra">processor<span class="" style="white-space:pre"> </span>: 1</div><div class="gmail_extra">vendor_id<span class="" style="white-space:pre"> </span>: AuthenticAMD</div><div class="gmail_extra">cpu family<span class="" style="white-space:pre"> </span>: 16</div><div class="gmail_extra">model<span class="" style="white-space:pre"> </span>: 4</div><div class="gmail_extra">model name<span class="" style="white-space:pre"> </span>: AMD Phenom(tm) II X3 B73 Processor</div><div class="gmail_extra">stepping<span class="" style="white-space:pre"> </span>: 2</div><div class="gmail_extra">microcode<span class="" style="white-space:pre"> </span>: 0x10000db</div><div class="gmail_extra">cpu MHz<span class="" style="white-space:pre"> </span>: 2800.000</div><div class="gmail_extra">cache size<span class="" style="white-space:pre"> </span>: 512 KB</div><div class="gmail_extra">physical id<span class="" style="white-space:pre"> </span>: 0</div><div class="gmail_extra">siblings<span class="" style="white-space:pre"> </span>: 3</div><div class="gmail_extra">core id<span class="" style="white-space:pre"> </span>: 1</div><div class="gmail_extra">cpu cores<span class="" style="white-space:pre"> </span>: 3</div><div class="gmail_extra">apicid<span class="" style="white-space:pre"> </span>: 1</div><div class="gmail_extra">initial apicid<span class="" style="white-space:pre"> </span>: 1</div><div class="gmail_extra">fpu<span class="" style="white-space:pre"> </span>: yes</div><div class="gmail_extra">fpu_exception<span class="" style="white-space:pre"> </span>: yes</div><div class="gmail_extra">cpuid level<span class="" style="white-space:pre"> </span>: 5</div><div class="gmail_extra">wp<span class="" style="white-space:pre"> </span>: yes</div><div class="gmail_extra">flags<span class="" style="white-space:pre"> </span>: fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush mmx fxsr sse sse2 ht syscall nx mmxext fxsr_opt pdpe1gb rdtscp lm 3dnowext 3dnow constant_tsc rep_good nopl nonstop_tsc extd_apicid pni monitor cx16 popcnt lahf_lm cmp_legacy svm extapic cr8_legacy abm sse4a misalignsse 3dnowprefetch osvw ibs skinit wdt hw_pstate npt lbrv svm_lock nrip_save</div><div class="gmail_extra">bogomips<span class="" style="white-space:pre"> </span>: 5585.95</div><div class="gmail_extra">TLB size<span class="" style="white-space:pre"> </span>: 1024 4K pages</div><div class="gmail_extra">clflush size<span class="" style="white-space:pre"> </span>: 64</div><div class="gmail_extra">cache_alignment<span class="" style="white-space:pre"> </span>: 64</div><div class="gmail_extra">address sizes<span class="" style="white-space:pre"> </span>: 48 bits physical, 48 bits virtual</div><div class="gmail_extra">power management: ts ttp tm stc 100mhzsteps hwpstate</div><div class="gmail_extra"><br></div><div class="gmail_extra">processor<span class="" style="white-space:pre"> </span>: 2</div><div class="gmail_extra">vendor_id<span class="" style="white-space:pre"> </span>: AuthenticAMD</div><div class="gmail_extra">cpu family<span class="" style="white-space:pre"> </span>: 16</div><div class="gmail_extra">model<span class="" style="white-space:pre"> </span>: 4</div><div class="gmail_extra">model name<span class="" style="white-space:pre"> </span>: AMD Phenom(tm) II X3 B73 Processor</div><div class="gmail_extra">stepping<span class="" style="white-space:pre"> </span>: 2</div><div class="gmail_extra">microcode<span class="" style="white-space:pre"> </span>: 0x10000db</div><div class="gmail_extra">cpu MHz<span class="" style="white-space:pre"> </span>: 2800.000</div><div class="gmail_extra">cache size<span class="" style="white-space:pre"> </span>: 512 KB</div><div class="gmail_extra">physical id<span class="" style="white-space:pre"> </span>: 0</div><div class="gmail_extra">siblings<span class="" style="white-space:pre"> </span>: 3</div><div class="gmail_extra">core id<span class="" style="white-space:pre"> </span>: 2</div><div class="gmail_extra">cpu cores<span class="" style="white-space:pre"> </span>: 3</div><div class="gmail_extra">apicid<span class="" style="white-space:pre"> </span>: 2</div><div class="gmail_extra">initial apicid<span class="" style="white-space:pre"> </span>: 2</div><div class="gmail_extra">fpu<span class="" style="white-space:pre"> </span>: yes</div><div class="gmail_extra">fpu_exception<span class="" style="white-space:pre"> </span>: yes</div><div class="gmail_extra">cpuid level<span class="" style="white-space:pre"> </span>: 5</div><div class="gmail_extra">wp<span class="" style="white-space:pre"> </span>: yes</div><div class="gmail_extra">flags<span class="" style="white-space:pre"> </span>: fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush mmx fxsr sse sse2 ht syscall nx mmxext fxsr_opt pdpe1gb rdtscp lm 3dnowext 3dnow constant_tsc rep_good nopl nonstop_tsc extd_apicid pni monitor cx16 popcnt lahf_lm cmp_legacy svm extapic cr8_legacy abm sse4a misalignsse 3dnowprefetch osvw ibs skinit wdt hw_pstate npt lbrv svm_lock nrip_save</div><div class="gmail_extra">bogomips<span class="" style="white-space:pre"> </span>: 5585.95</div><div class="gmail_extra">TLB size<span class="" style="white-space:pre"> </span>: 1024 4K pages</div><div class="gmail_extra">clflush size<span class="" style="white-space:pre"> </span>: 64</div><div class="gmail_extra">cache_alignment<span class="" style="white-space:pre"> </span>: 64</div><div class="gmail_extra">address sizes<span class="" style="white-space:pre"> </span>: 48 bits physical, 48 bits virtual</div><div class="gmail_extra">power management: ts ttp tm stc 100mhzsteps hwpstate</div><div class="gmail_extra"><br></div></div><div class="gmail_extra"> - Dave</div></div></div></div>