id summary reporter owner description type status priority milestone component version severity resolution keywords cc mlocked 4685 MythDVD playback chunks out Greg Grotsky skamithi " I'm currently running SVN 15728, however, I have had this issue for a long time (years) and I've never had it be as repeatable as it is on Lord of the Rings, Return of the King. When playing a DVD back using MythDVD the playback becomes choppy and sometimes even cause the audio to cut out. The problems appear to happen on the chapter breaks though I'm not fully convinced that it's only at chapter breaks. This happens almost randomly on some DVDs but it's definitely a problem in the MythDVD software because I have no issues like this using Xine. See this link for an example of what it looks like (17MB wmv): [http://www.spartanframeworks.com/Spikey/MythDVD_PlaybackIssue.wmv MythDVD Playback Issue Video] Also, the following is a ""mythfrontend -v playback"" log showing what the frontend is doing when the chunking happens. {{{ 'video_output' mean = '41561.92', std. dev. = '8614.47', fps = '24.06' 'video_output' mean = '41901.58', std. dev. = '8360.99', fps = '23.87' 2008-02-16 09:20:22.348 NVP: 400 progressive frames seen. 'video_output' mean = '41566.01', std. dev. = '8538.73', fps = '24.06' 'video_output' mean = '41731.62', std. dev. = '8543.02', fps = '23.96' 'video_output' mean = '41731.22', std. dev. = '8549.31', fps = '23.96' 'video_output' mean = '41733.19', std. dev. = '8344.59', fps = '23.96' 2008-02-16 09:20:39.055 NVP: 800 progressive frames seen. 'video_output' mean = '41732.51', std. dev. = '8358.34', fps = '23.96' 'video_output' mean = '41563.39', std. dev. = '8540.06', fps = '24.06' 2008-02-16 09:20:50.147 DVDNAV_CELL_CHANGE: pg_length == 43815000, pgc_length == 688815000, cell_start == 195234000, pg_start == 156324000, title == 2, part == 8 titleParts 37 2008-02-16 09:20:50.147 DVDNAV_SPU_CLUT_CHANGE happened. 2008-02-16 09:20:50.147 DVDNAV_SPU_STREAM_CHANGE: physical_wide==-1, physical_letterbox==-1, physical_pan_scan==-1, current_track==-1, total count 4 2008-02-16 09:20:50.148 DVDNAV_AUDIO_STREAM_CHANGE: Current Active Stream 0 Track Count 2 2008-02-16 09:20:50.148 AFD: DVD Cell Changed. Update framesPlayed: 65004 2008-02-16 09:20:50.212 NVP: Video is 30 frames ahead of audio, doubling video frame interval to slow down. 2008-02-16 09:20:50.279 NVP: Video is 30 frames ahead of audio, doubling video frame interval to slow down. 2008-02-16 09:20:50.346 NVP: Video is 30 frames ahead of audio, doubling video frame interval to slow down. 2008-02-16 09:20:50.414 NVP: Video is 30 frames ahead of audio, doubling video frame interval to slow down. 2008-02-16 09:20:50.481 NVP: Video is 30 frames ahead of audio, doubling video frame interval to slow down. 2008-02-16 09:20:50.548 NVP: Video is 30 frames ahead of audio, doubling video frame interval to slow down. 2008-02-16 09:20:50.616 NVP: Video is 30 frames ahead of audio, doubling video frame interval to slow down. 2008-02-16 09:20:50.683 NVP: Video is 30 frames ahead of audio, doubling video frame interval to slow down. 2008-02-16 09:20:50.750 NVP: Video is 30 frames ahead of audio, doubling video frame interval to slow down. 2008-02-16 09:20:50.817 NVP: Video is 30 frames ahead of audio, doubling video frame interval to slow down. 2008-02-16 09:20:50.885 NVP: Video is 30 frames ahead of audio, doubling video frame interval to slow down. 2008-02-16 09:20:50.952 NVP: Video is 30 frames ahead of audio, doubling video frame interval to slow down. 2008-02-16 09:20:51.019 NVP: Video is 30 frames ahead of audio, doubling video frame interval to slow down. 2008-02-16 09:20:51.087 NVP: Video is 30 frames ahead of audio, doubling video frame interval to slow down. 2008-02-16 09:20:51.154 NVP: Video is 30 frames ahead of audio, doubling video frame interval to slow down. 2008-02-16 09:20:51.221 NVP: Video is 30 frames ahead of audio, doubling video frame interval to slow down. 2008-02-16 09:20:51.289 NVP: Video is 30 frames ahead of audio, doubling video frame interval to slow down. 2008-02-16 09:20:51.356 NVP: Video is 30 frames ahead of audio, doubling video frame interval to slow down. 2008-02-16 09:20:51.423 NVP: Video is 30 frames ahead of audio, doubling video frame interval to slow down. 2008-02-16 09:20:51.491 NVP: Video is 30 frames ahead of audio, doubling video frame interval to slow down. 2008-02-16 09:20:51.558 NVP: Video is 30 frames ahead of audio, doubling video frame interval to slow down. 2008-02-16 09:20:51.625 NVP: Video is 30 frames ahead of audio, doubling video frame interval to slow down. 2008-02-16 09:20:51.693 NVP: Video is 30 frames ahead of audio, doubling video frame interval to slow down. 2008-02-16 09:20:51.760 NVP: Video is 30 frames ahead of audio, doubling video frame interval to slow down. 2008-02-16 09:20:51.827 NVP: Video is 30 frames ahead of audio, doubling video frame interval to slow down. 2008-02-16 09:20:51.895 NVP: Video is 30 frames ahead of audio, doubling video frame interval to slow down. 'video_output' mean = '48294.07', std. dev. = '13498.53', fps = '20.71' 2008-02-16 09:20:51.962 NVP: Video is 30 frames ahead of audio, doubling video frame interval to slow down. 2008-02-16 09:20:52.029 NVP: Video is 30 frames ahead of audio, doubling video frame interval to slow down. 2008-02-16 09:20:52.096 NVP: Video is 30 frames ahead of audio, doubling video frame interval to slow down. 2008-02-16 09:20:52.164 NVP: Video is 30 frames ahead of audio, doubling video frame interval to slow down. 2008-02-16 09:20:52.231 NVP: Video is 30 frames ahead of audio, doubling video frame interval to slow down. 2008-02-16 09:20:52.298 NVP: Video is 30 frames ahead of audio, doubling video frame interval to slow down. 2008-02-16 09:20:52.366 NVP: Video is 30 frames ahead of audio, doubling video frame interval to slow down. 2008-02-16 09:20:52.416 NVP: Video is 30 frames ahead of audio, doubling video frame interval to slow down. 2008-02-16 09:20:52.484 NVP: Video is 30 frames ahead of audio, doubling video frame interval to slow down. 2008-02-16 09:20:52.551 NVP: Video is 30 frames ahead of audio, doubling video frame interval to slow down. 2008-02-16 09:20:52.618 NVP: Video is 30 frames ahead of audio, doubling video frame interval to slow down. 2008-02-16 09:20:52.686 NVP: Video is 30 frames ahead of audio, doubling video frame interval to slow down. 2008-02-16 09:20:52.753 NVP: Video is 30 frames ahead of audio, doubling video frame interval to slow down. 2008-02-16 09:20:52.820 NVP: Video is 30 frames ahead of audio, doubling video frame interval to slow down. 2008-02-16 09:20:52.888 NVP: Video is 30 frames ahead of audio, doubling video frame interval to slow down. 2008-02-16 09:20:52.955 NVP: Video is 30 frames ahead of audio, doubling video frame interval to slow down. 2008-02-16 09:20:53.022 NVP: Video is 30 frames ahead of audio, doubling video frame interval to slow down. 2008-02-16 09:20:53.090 NVP: Video is 30 frames ahead of audio, doubling video frame interval to slow down. 2008-02-16 09:20:53.157 NVP: Video is 30 frames ahead of audio, doubling video frame interval to slow down. 2008-02-16 09:20:53.224 NVP: Video is 30 frames ahead of audio, doubling video frame interval to slow down. 2008-02-16 09:20:53.291 NVP: Video is 30 frames ahead of audio, doubling video frame interval to slow down. 2008-02-16 09:20:53.359 NVP: Video is 30 frames ahead of audio, doubling video frame interval to slow down. 2008-02-16 09:20:53.426 NVP: Video is 30 frames ahead of audio, doubling video frame interval to slow down. 2008-02-16 09:20:53.493 NVP: Video is 30 frames ahead of audio, doubling video frame interval to slow down. 2008-02-16 09:20:53.561 NVP: Video is 30 frames ahead of audio, doubling video frame interval to slow down. 2008-02-16 09:20:53.628 NVP: Video is 30 frames ahead of audio, doubling video frame interval to slow down. 2008-02-16 09:20:53.695 NVP: Video is 30 frames ahead of audio, doubling video frame interval to slow down. 2008-02-16 09:20:53.702 WriteAudio: buffer underrun 2008-02-16 09:20:53.763 NVP: Video is 15.1441 frames ahead of audio, doubling video frame interval to slow down. 2008-02-16 09:20:53.830 NVP: Video is 7.89226 frames behind audio (too slow), dropping frame to catch up. 2008-02-16 09:20:53.830 NVP: Video is 15.0078 frames behind audio (too slow), dropping frame to catch up. 2008-02-16 09:20:53.830 NVP: Video is 19.9698 frames behind audio (too slow), dropping frame to catch up. 2008-02-16 09:20:53.830 NVP: Video is 23.4365 frames behind audio (too slow), dropping frame to catch up. 2008-02-16 09:20:53.830 NVP: Video is 25.662 frames behind audio (too slow), dropping frame to catch up. 2008-02-16 09:20:53.830 NVP: Video is 27.0838 frames behind audio (too slow), dropping frame to catch up. 2008-02-16 09:20:53.831 NVP: Video is 27.7755 frames behind audio (too slow), dropping frame to catch up. 2008-02-16 09:20:53.831 NVP: Video is 28.047 frames behind audio (too slow), dropping frame to catch up. 2008-02-16 09:20:53.831 NVP: Video is 27.876 frames behind audio (too slow), dropping frame to catch up. 2008-02-16 09:20:53.831 NVP: Video is 27.4931 frames behind audio (too slow), dropping frame to catch up. 2008-02-16 09:20:53.831 NVP: Video is 26.8312 frames behind audio (too slow), dropping frame to catch up. 2008-02-16 09:20:53.831 NVP: Video is 26.0875 frames behind audio (too slow), dropping frame to catch up. 2008-02-16 09:20:53.831 NVP: Video is 25.1552 frames behind audio (too slow), dropping frame to catch up. 2008-02-16 09:20:53.831 NVP: Video is 24.2011 frames behind audio (too slow), dropping frame to catch up. 2008-02-16 09:20:53.831 NVP: Video is 23.1185 frames behind audio (too slow), dropping frame to catch up. 2008-02-16 09:20:53.831 NVP: Video is 22.0592 frames behind audio (too slow), dropping frame to catch up. 2008-02-16 09:20:53.831 NVP: Video is 20.8902 frames behind audio (too slow), dropping frame to catch up. 2008-02-16 09:20:53.831 NVP: Video is 19.7661 frames behind audio (too slow), dropping frame to catch up. 2008-02-16 09:20:53.831 NVP: Video is 18.5409 frames behind audio (too slow), dropping frame to catch up. 2008-02-16 09:20:53.831 NVP: Video is 17.3748 frames behind audio (too slow), dropping frame to catch up. 2008-02-16 09:20:53.831 NVP: Video is 16.1255 frames behind audio (too slow), dropping frame to catch up. 2008-02-16 09:20:53.831 NVP: Video is 14.9413 frames behind audio (too slow), dropping frame to catch up. 2008-02-16 09:20:53.831 NVP: Video is 13.6786 frames behind audio (too slow), dropping frame to catch up. 2008-02-16 09:20:53.832 NVP: Video is 12.4767 frames behind audio (too slow), dropping frame to catch up. 2008-02-16 09:20:53.832 NVP: Video is 11.2007 frames behind audio (too slow), dropping frame to catch up. 2008-02-16 09:20:53.832 NVP: Video is 9.99649 frames behind audio (too slow), dropping frame to catch up. 2008-02-16 09:20:53.832 NVP: Video is 8.71867 frames behind audio (too slow), dropping frame to catch up. 2008-02-16 09:20:53.832 NVP: Video is 7.50554 frames behind audio (too slow), dropping frame to catch up. 2008-02-16 09:20:53.832 NVP: prebuffering pause 2008-02-16 09:20:53.832 NVP: Waiting for prebuffer.. 0 AAAAAAAALaAAAAAAALAAAAAAAAAUAAA 2008-02-16 09:20:53.833 WriteAudio: buffer underrun 2008-02-16 09:20:53.897 NVP: Video is 6.22106 frames behind audio (too slow), dropping frame to catch up. 'video_output' mean = '37020.85', std. dev. = '26138.20', fps = '27.01' 2008-02-16 09:20:55.917 NVP: 1200 progressive frames seen. 'video_output' mean = '41566.42', std. dev. = '8524.80', fps = '24.06' 'video_output' mean = '41732.77', std. dev. = '8367.21', fps = '23.96' 'video_output' mean = '41732.38', std. dev. = '8549.20', fps = '23.96' 'video_output' mean = '41730.99', std. dev. = '8355.10', fps = '23.96' 2008-02-16 09:21:12.577 NVP: 1600 progressive frames seen. }}} " defect closed minor 0.21.1 mythtv head medium fixed MythDVD Playback 0