[MPlayer-users] Feature Request: Get OSD Time as a Slave Command

mplayer mplayer at 2ndage.com
Wed Nov 16 05:37:48 CET 2011


>>>>>> ISSUE: The slave command get_time_pos returns the file
>>>>>> timestamp, but for some
>>>> file
>>>>>> formats the timestamp resets.
>>>>>>
>>>>>> SOLUTION (proposed): However, I noticed that the OSD time
>>>>>> displayed is always good.  So why
>>>> not
>>>>>> add a slave command 'get_osd_time' to expose the value the OSD
>>>>>> is using
>>>> to
>>>>>> display -- it appears to me that OSD just asks the demuxer for
>>>>>> the
>>>> current
>>>>>> time.
>>>>>>
>>>>>> So this is what I think we'd need to add;
>>>>>>
>>>>>> input.h MP_CMD_GET_OSD_TIME,
>>>>>>
>>>>>> input.c { MP_CMD_GET_OSD_TIME, "get_osd_time", 0, { {-1,{0}} }
>>>>>> },
>>>>>>
>>>>>> command.c case MP_CMD_GET_OSD_TIME: mp_msg(MSGT_GLOBAL,
>>>>>> MSGL_INFO, "ANS_OSD_TIME=%d\n",
>>>>>> demuxer_get_current_time(mpctx->demuxer));
>>>>>
>>>>> There is no need to add anything. All that
>>>>> demuxer_get_current_time does is prefer the stream time over
>>>>> pts. You will get the same by just using get_property
>>>>> stream_time_pos and only falling back to get_property time_pos
>>>>> when it is not available.
>>>>
>>>> Something is not adding up.
>>>>
>>>> OSD is using 'demuxer_get_current_time' which implements; if
>>>> (demuxer->stream_pts != MP_NOPTS_VALUE) get_time_ans =
>>>> demuxer->stream_pts; else if (sh_video) get_time_ans =
>>>> sh_video->pts;
>>>>
>>>> Which returns the RIGHT answer.
>>>>
>>>> And the slave command 'time_get_pos' is using; if (sh_video) pos =
>>>> sh_video->pts; ...
>>>>
>>>> Which returns the WRONG answer.
>>>>
>>>> And 'get_property stream_time_pos' is using; if (!mpctx->demuxer ||
>>>> mpctx->demuxer->stream_pts == MP_NOPTS_VALUE) return
>>>> M_PROPERTY_UNAVAILABLE; return m_property_time_ro(prop, action,
>>>> arg, mpctx->demuxer->stream_pts);
>>>>
>>>> But when I try calling the slave command: 'get_property
>>>> stream_time_pos' I get the following; Failed to get value of
>>>> property 'stream_time_pos'. ANS_ERROR=PROPERTY_UNKNOWN
>>>>
>>>> It's pretty frustrating seeing the OSD display 1:15:23 while
>>>> time_get_pos returns 3:15.
>>>>
>>>> Could we change the 'time_get_pos' to use the same logic as the OSD
>>>> and give preference to the stream pts; if (demuxer->stream_pts !=
>>>> MP_NOPTS_VALUE) pos = demuxer->stream_pts; else if (sh_video) pos =
>>>> sh_video->pts; ...
>>>
>>>
>>> I can confirm that get_property stream_time_pos, does not appear to
>>work.
>>>
>>> mplayer ~/Videos/Guilty\ Crown/\[Doki\]\ Guilty\ Crown\ -\ 01\
>>> \(848x480\ h264\ AAC\)\ \[0D556C93\].mkv -slave -quiet
>>
>>When there are no stream time stamps then it of course is not
>available.
>>Files streams do not come with time stamps, basically only DVDs will
>>give a result.
>
>When I tested your suggestion to use "get_property stream_time_pos" it
>was
>on a DVD of the movie "300".  The OSD display is accurate, "get_property
>stream_time_pos" returns an error and "time_get_pos" thinks its only 3
>minutes into the movie after about 50% of the stream.
>
>I'd prefer to see "time_get_pos" changed to:
>  if (demuxer->stream_pts != MP_NOPTS_VALUE)
>    pos = demuxer->stream_pts;
>  else if (sh_video)
>    pos = sh_video->pts;
>  ...
>
>Lost another day trying to build mplayer on windows -- it makes fine,
>but
>the resulting exe won't play anything.  Anyone out there have a current
>"How-To" or better yet a MinGW zip of a working build?

I can now compile mplayer (thanks to the info found at
http://oss.netfarm.it/mplayer-win32.php). made the change I proposed above
on how "time_get_pos" reports the current time and it works great!

JR





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