[Asterisk-video] mp4save, bad video length XD
borja.sixto at i6net.com
borja.sixto at i6net.com
Tue Nov 4 03:32:24 CST 2008
Hola Alberto (it seems that this subjet generate a lot of interest from spanish
guys...),
The duration of the video is wrong.
I think your Sip Phone set a bad timestamp (set always 327327).
(the native module use the timestamp to calculate the duration/time).
The mp4save module have some limitations (once is that it not support lost or
burst messages... and not garanty the video/audio synchronization).
It works better with 3G video calls.
Regards and Saludos,
Borja
Selon aj2r <ajrodriguez at fidesol.org>:
> I'm not allowed to send attached files that exceed 40k, so I've pasted a
> part of the dump
>
> mp4file test.mp4, track 1, samples 536, timescale 8000
> sampleId 1, size 160 duration 160 time 0 00:00:00.000
> sampleId 2, size 160 duration 160 time 160 00:00:00.020
> sampleId 3, size 160 duration 160 time 320 00:00:00.040
> sampleId 4, size 160 duration 160 time 480 00:00:00.060
> sampleId 5, size 160 duration 160 time 640 00:00:00.080
> sampleId 6, size 160 duration 160 time 800 00:00:00.100
> sampleId 7, size 160 duration 160 time 960 00:00:00.120
> sampleId 8, size 160 duration 160 time 1120 00:00:00.140
> sampleId 9, size 160 duration 160 time 1280 00:00:00.160
> sampleId 10, size 160 duration 160 time 1440 00:00:00.180
> sampleId 11, size 160 duration 160 time 1600 00:00:00.200
> sampleId 12, size 160 duration 160 time 1760 00:00:00.220
> sampleId 13, size 160 duration 160 time 1920 00:00:00.240
> sampleId 14, size 160 duration 160 time 2080 00:00:00.260
> sampleId 15, size 160 duration 160 time 2240 00:00:00.280
> sampleId 16, size 160 duration 160 time 2400 00:00:00.300
> sampleId 17, size 160 duration 160 time 2560 00:00:00.320
> sampleId 18, size 160 duration 160 time 2720 00:00:00.340
> sampleId 19, size 160 duration 160 time 2880 00:00:00.360
> sampleId 20, size 160 duration 160 time 3040 00:00:00.380
> sampleId 21, size 160 duration 160 time 3200 00:00:00.400
> ...............
>
> mp4file test.mp4, track 2, samples 536, timescale 8000
> sampleId 1, size 32 duration 160 time 0 00:00:00.000 S
> sampleId 2, size 32 duration 160 time 160 00:00:00.020 S
> sampleId 3, size 32 duration 160 time 320 00:00:00.040 S
> sampleId 4, size 32 duration 160 time 480 00:00:00.060 S
> sampleId 5, size 32 duration 160 time 640 00:00:00.080 S
> sampleId 6, size 32 duration 160 time 800 00:00:00.100 S
> sampleId 7, size 32 duration 160 time 960 00:00:00.120 S
> sampleId 8, size 32 duration 160 time 1120 00:00:00.140 S
> sampleId 9, size 32 duration 160 time 1280 00:00:00.160 S
> sampleId 10, size 32 duration 160 time 1440 00:00:00.180 S
> sampleId 11, size 32 duration 160 time 1600 00:00:00.200 S
> sampleId 12, size 32 duration 160 time 1760 00:00:00.220 S
> sampleId 13, size 32 duration 160 time 1920 00:00:00.240 S
> sampleId 14, size 32 duration 160 time 2080 00:00:00.260 S
> sampleId 15, size 32 duration 160 time 2240 00:00:00.280 S
> sampleId 16, size 32 duration 160 time 2400 00:00:00.300 S
> sampleId 17, size 32 duration 160 time 2560 00:00:00.320 S
> sampleId 18, size 32 duration 160 time 2720 00:00:00.340 S
> sampleId 19, size 32 duration 160 time 2880 00:00:00.360 S
> sampleId 20, size 32 duration 160 time 3040 00:00:00.380 S
> sampleId 21, size 32 duration 160 time 3200 00:00:00.400 S
> sampleId 22, size 32 duration 160 time 3360 00:00:00.420 S
> ..............
>
> mp4file test.mp4, track 3, samples 66, timescale 90000
> sampleId 1, size 16232 duration 0 time 0 00:00:00.000 S
> sampleId 2, size 3102 duration 327327 time 0 00:00:00.000 S
> sampleId 3, size 142 duration 327327 time 327327 00:00:03.636 S
> sampleId 4, size 2610 duration 327327 time 654654 00:00:07.273 S
> sampleId 5, size 1913 duration 327327 time 981981 00:00:10.910 S
> sampleId 6, size 194 duration 327327 time 1309308 00:00:14.547 S
> sampleId 7, size 146 duration 327327 time 1636635 00:00:18.184 S
> sampleId 8, size 273 duration 327327 time 1963962 00:00:21.821 S
> sampleId 9, size 404 duration 327327 time 2291289 00:00:25.458 S
> sampleId 10, size 870 duration 327327 time 2618616 00:00:29.095 S
> sampleId 11, size 918 duration 327327 time 2945943 00:00:32.732 S
> sampleId 12, size 1270 duration 327327 time 3273270 00:00:36.369 S
> sampleId 13, size 1619 duration 327327 time 3600597 00:00:40.006 S
> sampleId 14, size 2445 duration 327327 time 3927924 00:00:43.643 S
> sampleId 15, size 2216 duration 327327 time 4255251 00:00:47.280 S
> sampleId 16, size 2363 duration 327327 time 4582578 00:00:50.917 S
> sampleId 17, size 2524 duration 327327 time 4909905 00:00:54.554 S
> sampleId 18, size 2174 duration 327327 time 5237232 00:00:58.191 S
> sampleId 19, size 1529 duration 327327 time 5564559 00:01:01.828 S
> sampleId 20, size 778 duration 327327 time 5891886 00:01:05.465 S
> sampleId 21, size 769 duration 327327 time 6219213 00:01:09.102 S
> sampleId 22, size 1449 duration 327327 time 6546540 00:01:12.739 S
> ........
>
> mp4file test.mp4, track 4, samples 66, timescale 90000
> sampleId 1, size 532 duration 0 time 0 00:00:00.000 S
> sampleId 2, size 136 duration 327327 time 0 00:00:00.000 S
> sampleId 3, size 48 duration 327327 time 327327 00:00:03.636 S
> sampleId 4, size 92 duration 327327 time 654654 00:00:07.273 S
> sampleId 5, size 92 duration 327327 time 981981 00:00:10.910 S
> sampleId 6, size 48 duration 327327 time 1309308 00:00:14.547 S
> sampleId 7, size 48 duration 327327 time 1636635 00:00:18.184 S
> sampleId 8, size 48 duration 327327 time 1963962 00:00:21.821 S
> sampleId 9, size 48 duration 327327 time 2291289 00:00:25.458 S
> sampleId 10, size 48 duration 327327 time 2618616 00:00:29.095 S
> sampleId 11, size 48 duration 327327 time 2945943 00:00:32.732 S
> sampleId 12, size 48 duration 327327 time 3273270 00:00:36.369 S
> sampleId 13, size 92 duration 327327 time 3600597 00:00:40.006 S
> sampleId 14, size 92 duration 327327 time 3927924 00:00:43.643 S
> sampleId 15, size 92 duration 327327 time 4255251 00:00:47.280 S
> sampleId 16, size 92 duration 327327 time 4582578 00:00:50.917 S
> sampleId 17, size 92 duration 327327 time 4909905 00:00:54.554 S
> sampleId 18, size 92 duration 327327 time 5237232 00:00:58.191 S
> sampleId 19, size 92 duration 327327 time 5564559 00:01:01.828 S
> sampleId 20, size 48 duration 327327 time 5891886 00:01:05.465 S
> sampleId 21, size 48 duration 327327 time 6219213 00:01:09.102 S
> sampleId 22, size 92 duration 327327 time 6546540 00:01:12.739 S
> ..............
>
>
>
> Regards,
>
>
> El lun, 03-11-2008 a las 21:45 +0100, Borja SIXTO escribió:
> > Can you dump the track (mp3trackdump) and compare the 2 tracks ?
> >
> > Alberto José RodrÃguez RodrÃguez a écrit :
> > > Can you help me with app_mp4?
> > >
> > > El lun, 03-11-2008 a las 18:14 +0100, Borja SIXTO escribió:
> > >
> > >> Hi alls,
> > >>
> > >> The mp4save use timestamps to mark the video sequence.
> > >> Some SIP phones not pay attention about that a set wrong values...
> > >>
> > >> The app_h324m have the same problem, Sergio...
> > >>
> > >> I have made this modification to the app_h324m (all the frame of the
> > >> same sample must have the same timestamp, Asterisk use relative
> > >> "timestamps" by the use of samples !) :
> > >> /* Rest of values*/
> > >> send->src = "h324m";
> > >> if (vt->first)
> > >> send->samples = vt->samples;
> > >> else
> > >> send->samples = 0;
> > >>
> > >> Regards,
> > >>
> > >>
> > >> Borja
> > >>
> > >>
> > >> Sergio Garcia Murillo a écrit :
> > >>
> > >>> Umm.. it seems that it has calculated the fps wrong
> > >>>
> > >>> 176x144 @ 0.279218 fps
> > >>>
> > >>> How have you recorded the file?
> > >>>
> > >>> Best regards
> > >>> Sergio
> > >>>
> > >>> aj2r escribió:
> > >>>
> > >>>
> > >>>> Hello, when I save a video with mp4save, I obtain a wrong mp4 file.
> > >>>> The video track length is n times larger than the audio track length
> > >>>> which is the actual length.
> > >>>>
> > >>>> mp4info output:
> > >>>> mp4info version 1.5.0.1
> > >>>> /tmp/test.mp4:
> > >>>> Track Type Info
> > >>>> 1 audio G.711 uLaw, 21.780 secs, 64 kbps, 8000 Hz
> > >>>> 2 hint Payload PCMU for track 1
> > >>>> 3 video H.263, 469.168 secs, 3 kbps, 176x144 @ 0.279218 fps
> > >>>> 4 hint Payload H263-1998 for track
> > >>>>
> > >>>> Any idea? Thanks
> > >>>>
> > >>>>
> > >>>>
> > >>>>
> > >>>
> > >>> _______________________________________________
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> --
> Alberto José RodrÃguez RodrÃguez
> Fundación I+D del Software Libre
> Parque Tecnológico de Ciencias de la Salud
> BIC Granada-CEEI
> Avda. de la Innovación, 1
> 18100 Armilla (Granada)
> Tlf. 958750457
> ajrodriguez at fidesol.org
> www.fidesol.org
>
>
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