[mythtv] H.264 over MPEG-2 TS recording and playback
Jean-Francois Roy
roy.jean-francois at crc.ca
Thu Mar 23 21:50:06 UTC 2006
I think I've figured it out, but I have to leave work pretty soon, so
I'll implement my solution tomorrow and submit patches if it works :)
Mark Buechler wrote:
> Does anyone have a contact with the ffmpeg folks who might be able to
> shed some light on what's going on?
>
> - Mark.
>
> On 3/23/06, *Jean-Francois Roy* < roy.jean-francois at crc.ca
> <mailto:roy.jean-francois at crc.ca>> wrote:
>
> Indeed, the problem is simply that no frames are ever decoded. The
> prebuffer messages are output every 10 times MythTV fails to prebuffer
> frames when you start playback.
>
> It's interesting you mention mplayer is having issues as well. I
> know my
> TS files work in VLC. I wonder if I could use the VLC TS demuxer
> instead
> of libavformat and pass elementary stream packets to libavcodec for
> decompression...
>
> Mark Buechler wrote:
> > Looks like newer Myth versions are getting closer to playing h.264
> > content. This an excerpt from mfe. I believe the video PIDs are
> > correctly being identified but ffmpeg is having trouble decoding the
> > stream. The same sort of errors come out of mplayer (which uses
> ffmpeg
> > for h.264) as well.
> >
> > - Mark.
> >
> > [h264 @ 0xb73c6630]non existing PPS referenced
> > [h264 @ 0xb73c6630]decode_slice_header error
> > [h264 @ 0xb73c6630]non existing PPS referenced
> > [h264 @ 0xb73c6630]decode_slice_header error
> > [h264 @ 0xb73c6630]non existing PPS referenced
> > [h264 @ 0xb73c6630]decode_slice_header error
> > [h264 @ 0xb73c6630]non existing PPS referenced
> > [h264 @ 0xb73c6630]decode_slice_header error
> > [h264 @ 0xb73c6630]non existing PPS referenced
> > [h264 @ 0xb73c6630]decode_slice_header error
> > [h264 @ 0xb73c6630]non existing PPS referenced
> > [h264 @ 0xb73c6630]decode_slice_header error
> > [h264 @ 0xb73c6630]non existing PPS referenced
> > [h264 @ 0xb73c6630]decode_slice_header error
> > [h264 @ 0xb73c6630]non existing PPS referenced
> > [h264 @ 0xb73c6630]decode_slice_header error
> > [h264 @ 0xb73c6630]non existing PPS referenced
> > [h264 @ 0xb73c6630]decode_slice_header error
> > [h264 @ 0xb73c6630]non existing PPS referenced
> > [h264 @ 0xb73c6630]decode_slice_header error
> > [h264 @ 0xb73c6630]non existing PPS referenced
> > [h264 @ 0xb73c6630]decode_slice_header error
> > 2006-03-22 18:38:08.130 AFD: Opened codec 0x858dcd0, id(MPEG2VIDEO)
> > type(Video)
> > 2006-03-22 18:38:08.130 AFD: Opened codec 0x858e000, id(MP3)
> type(Audio)
> > 2006-03-22 18:38:08.132 AFD: Opened codec 0x8e445f0, id(H264)
> type(Video)
> > 2006-03-22 18:38:08.132 AFD: Opened codec 0x87091d0, id(AC3)
> type(Audio)
> > 0: start_time: 7983.373 duration: 1.611
> > 1: start_time: 7983.173 duration: 1.601
> > stream: start_time: 88701.926 duration: 20.124 bitrate=5040 kb/s
> > 2006-03-22 18:38:08.174 AFD: Warning, video codec 0x8e445f0 id(H264)
> > type (Video) already open.
> > 2006-03-22 18:38: 08.174 AFD: Warning, audio codec 0x87091d0 id(AC3)
> > type (Audio) already open, leaving it alone.
> > 2006-03-22 18:38:08.174 NVP: Disabling Audio, params(0,0,0)
> > 2006-03-22 18:38:08.396 AFD: Opened codec 0x8709500, id(MPEG2VIDEO)
> > type(Video)
> > 2006-03-22 18:38:08.396 AFD: Opened codec 0x8d325c0, id(MP3)
> type(Audio)
> > 2006-03-22 18:38:08.398 AFD: Opened codec 0x8e455d0, id(H264)
> type(Video)
> > 2006-03-22 18:38:08.398 AFD: Opened codec 0x8e45b30, id(AC3)
> type(Audio)
> > 2006-03-22 18:38:09.107 NVP: Prebuffer wait timed out 10 times.
> > 2006-03-22 18:38:10.457 NVP: Prebuffer wait timed out 10 times.
> > 2006-03-22 18:38:11.807 NVP: Prebuffer wait timed out 10 times.
> > 2006-03-22 18:38: 13.156 NVP: Prebuffer wait timed out 10 times.
> > 2006-03-22 18:38:14.506 NVP: Prebuffer wait timed out 10 times.
> > 2006-03-22 18:38:15.856 NVP: Prebuffer wait timed out 10 times.
> > 2006-03-22 18:38:17.205 NVP: Prebuffer wait timed out 10 times.
> >
> > On 3/18/06, *Steven Adeff* <adeffs.mythtv at gmail.com
> <mailto:adeffs.mythtv at gmail.com>
> > <mailto:adeffs.mythtv at gmail.com
> <mailto:adeffs.mythtv at gmail.com>>> wrote:
> >
> > On 3/18/06, Daniel Kristjansson <danielk at cuymedia.net
> <mailto:danielk at cuymedia.net>
> > <mailto:danielk at cuymedia.net <mailto:danielk at cuymedia.net>
> >> wrote:
> > > On Fri, 2006-03-17 at 13:08 -0500, Steven Adeff wrote:
> > > > On 3/17/06, Mark Buechler < mark.buechler at gmail.com
> <mailto:mark.buechler at gmail.com>
> > <mailto: mark.buechler at gmail.com
> <mailto:mark.buechler at gmail.com>>> wrote:
> > > > > I can provide sample streams but they come from an FTA
> > channel here in the
> > > > > US. I doubt it's copyright free. If anyone needs a sample
> > stream contact me
> > > > > off-list and we'll discuss further.
> > > > if its FTA then there should be no issue in distributing it
> > for free,
> > > > you just can't make any money off of distribution.
> > >
> > > Umm no... If it is copyrighted, you have to be very
> careful to stay
> > > within fair use rules which are ambiguous and differ
> greatly by
> > country.
> > >
> > > What I meant by test streams was an organized set of
> streams with
> > > different video attributes (high motion, low motion,
> color, B&W,
> > > different resolutions) and different attached audio (ACC,
> AC3,
> > > MP2, MP3, etc.) It should be public domain, or at least
> distributed
> > > under a license that allows me to redistribute the stream
> to a user
> > > for testing.
> > >
> > > I don't care if the high motion video is of your dog
> playing catch,
> > > but I do care about the copyright.
> > >
> > > I'm willing to host these videos, but only if it is
> unquestionably
> > > legal to do so in any country I might ever want to visit.
> > >
> > > -- Daniel
> >
> > I've been trying to figure out how to mux into a TS stream
> but it
> > doesn't look like mencoder or ffmpeg support this? If anyone
> know how
> > to do this I'll create a slew of h264 streams. There are some
> > non-copyrighted test streams available that I can reencode
> to h264 at
> > various bitrates with various audio tracks like Daniel asks
> for.
> >
> > --
> > Steve
> > _______________________________________________
> > mythtv-dev mailing list
> > mythtv-dev at mythtv.org <mailto:mythtv-dev at mythtv.org>
> <mailto: mythtv-dev at mythtv.org <mailto:mythtv-dev at mythtv.org>>
> > http://mythtv.org/cgi-bin/mailman/listinfo/mythtv-dev
> > < http://mythtv.org/cgi-bin/mailman/listinfo/mythtv-dev>
> >
> >
> >
> ------------------------------------------------------------------------
> >
> > _______________________________________________
> > mythtv-dev mailing list
> > mythtv-dev at mythtv.org <mailto:mythtv-dev at mythtv.org>
> > http://mythtv.org/cgi-bin/mailman/listinfo/mythtv-dev
> <http://mythtv.org/cgi-bin/mailman/listinfo/mythtv-dev>
> >
>
> _______________________________________________
> mythtv-dev mailing list
> mythtv-dev at mythtv.org <mailto:mythtv-dev at mythtv.org>
> http://mythtv.org/cgi-bin/mailman/listinfo/mythtv-dev
>
>
> ------------------------------------------------------------------------
>
> _______________________________________________
> mythtv-dev mailing list
> mythtv-dev at mythtv.org
> http://mythtv.org/cgi-bin/mailman/listinfo/mythtv-dev
>
More information about the mythtv-dev
mailing list