From: Marco G. <ma...@gi...> - 2010-09-27 20:26:56
Attachments:
smime.p7s
|
Hi i started an VU meter display.It seem do work initial, but the method to compute the value fomr teh audio samples seems to be more then a simple arithmetic value. If someone has a better, this would be nice. regards marco |
From: Simon E. <sim...@gm...> - 2010-09-27 21:17:09
|
2010/9/27 Marco Gittler <ma...@gi...>: > Hi > > i started an VU meter display.It seem do work initial, but the method to compute the value fomr teh audio samples seems to be more then a simple arithmetic value. > If someone has a better, this would be nice. > > regards marco Sounds cool. I would like to test, but atm kdenlive always crashes on startup (after updating kdenlive to svn), or if not on startup, then when trying to play any clip. I'm taking this lecture: http://www.vvz.ethz.ch/Vorlesungsverzeichnis/lerneinheitPre.do?lerneinheitId=67120&semkez=2010W&lang=en where we should implement something about multimedia. I thought about adding some sound scopes, like the UV meter :P, but now you were faster. On the other hand, kind of a spectogram would be pretty cool. Perhaps I'm gonna try that. Sorry I cannot comment on your UV yet, but I really cannot run anything atm :( (and I wanted to show kdenlive in a lecture on wednesday) Simon |
From: Dan D. <da...@de...> - 2010-09-27 22:13:48
Attachments:
kbw-action.sh
|
On Mon, Sep 27, 2010 at 2:17 PM, Simon Eugster <sim...@gm...> wrote: > Sorry I cannot comment on your UV yet, but I really cannot run > anything atm :( (and I wanted to show kdenlive in a lecture on > wednesday) You can use the build script I extracted from the builder wizard. Edit the config variables at the top to change revisions and other options. You see there I have an option to use SVN r4900 which is very shortly after the 0.7.8 release. Let me know how it goes. Then, run $INSTALL_DIR/bin/start_kdenlive. -- +-DRD-+ |
From: jb <jb...@kd...> - 2010-09-27 23:36:11
|
On Tuesday 28 September 2010 00:13:40 Dan Dennedy wrote: > On Mon, Sep 27, 2010 at 2:17 PM, Simon Eugster <sim...@gm...> wrote: > > Sorry I cannot comment on your UV yet, but I really cannot run > > anything atm :( (and I wanted to show kdenlive in a lecture on > > wednesday) The startup crash is fixed for me if you use latest Kdenlive svn + the small MLT patch I sent on MLT's mailing list. @Marco: I made a few changes to the Audio Vu meter (put it in a frame above the video). Seems to me like the level is not very accurate, because it goes into the red even with low volume clips... but it' late now, maybe it's me. regards jb |
From: amir <am...@ne...> - 2010-09-29 10:40:42
|
hello all, this looks great, I have two suggestions: 1. I think the Vu is better vertically on the side of the monitor, the current position "pull" the eyes from the monitor to the meter, maybe even let the user decide were he wants to position the meter. 2 add the ability to toggle on/off the display of the meter. thank you for all your work, Amir > On Tuesday 28 September 2010 00:13:40 Dan Dennedy wrote: > > On Mon, Sep 27, 2010 at 2:17 PM, Simon Eugster <sim...@gm...> wrote: > > > Sorry I cannot comment on your UV yet, but I really cannot run > > > anything atm :( (and I wanted to show kdenlive in a lecture on > > > wednesday) > > The startup crash is fixed for me if you use latest Kdenlive svn + the small > MLT patch I sent on MLT's mailing list. > > @Marco: > I made a few changes to the Audio Vu meter (put it in a frame above the > video). Seems to me like the level is not very accurate, because it goes into > the red even with low volume clips... but it' late now, maybe it's me. > > regards > jb > > ------------------------------------------------------------------------------ > Start uncovering the many advantages of virtual appliances > and start using them to simplify application deployment and > accelerate your shift to cloud computing. > http://p.sf.net/sfu/novell-sfdev2dev > _______________________________________________ > Kdenlive-devel mailing list > Kde...@li... > https://lists.sourceforge.net/lists/listinfo/kdenlive-devel > |
From: Till T. <ro...@tt...> - 2010-09-29 15:06:49
|
-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 On 09/29/2010 12:40 PM, amir wrote: > hello all, > this looks great, I have two suggestions: > 1. I think the Vu is better vertically on the side of the monitor, the current agreed > position "pull" the eyes from the monitor to the meter, maybe even let the > user decide were he wants to position the meter. > 2 add the ability to toggle on/off the display of the meter. It would be nice to have it as a dock widget, so it possible to rearrange (and also hide) it. regards till > > thank you for all your work, > Amir > > >> On Tuesday 28 September 2010 00:13:40 Dan Dennedy wrote: >>> On Mon, Sep 27, 2010 at 2:17 PM, Simon Eugster <sim...@gm...> wrote: >>>> Sorry I cannot comment on your UV yet, but I really cannot run >>>> anything atm :( (and I wanted to show kdenlive in a lecture on >>>> wednesday) >> >> The startup crash is fixed for me if you use latest Kdenlive svn + the small >> MLT patch I sent on MLT's mailing list. >> >> @Marco: >> I made a few changes to the Audio Vu meter (put it in a frame above the >> video). Seems to me like the level is not very accurate, because it goes > into >> the red even with low volume clips... but it' late now, maybe it's me. >> >> regards >> jb -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.10 (GNU/Linux) Comment: Using GnuPG with Mozilla - http://enigmail.mozdev.org/ iEYEARECAAYFAkyjVvkACgkQzwEyz7QP6nS78QCfQPWhFTYApNuBqs4oUmOYD4UO dQkAn1LmsBeu3eDribTEtWfiHUE+DTbZ =2tLR -----END PGP SIGNATURE----- |
From: Simon A. E. <sim...@gm...> - 2010-09-30 18:32:37
|
On 28.09.2010 01:36, jb wrote: > On Tuesday 28 September 2010 00:13:40 Dan Dennedy wrote: >> On Mon, Sep 27, 2010 at 2:17 PM, Simon Eugster<sim...@gm...> wrote: >>> Sorry I cannot comment on your UV yet, but I really cannot run >>> anything atm :( (and I wanted to show kdenlive in a lecture on >>> wednesday) > > The startup crash is fixed for me if you use latest Kdenlive svn + the small > MLT patch I sent on MLT's mailing list. Worked, thanks! :) Simon |
From: Dan D. <da...@de...> - 2010-09-29 17:01:49
|
On Mon, Sep 27, 2010 at 4:36 PM, jb <jb...@kd...> wrote: > On Tuesday 28 September 2010 00:13:40 Dan Dennedy wrote: >> On Mon, Sep 27, 2010 at 2:17 PM, Simon Eugster <sim...@gm...> wrote: >> > Sorry I cannot comment on your UV yet, but I really cannot run >> > anything atm :( (and I wanted to show kdenlive in a lecture on >> > wednesday) > > The startup crash is fixed for me if you use latest Kdenlive svn + the small > MLT patch I sent on MLT's mailing list. > > @Marco: > I made a few changes to the Audio Vu meter (put it in a frame above the > video). Seems to me like the level is not very accurate, because it goes into > the red even with low volume clips... but it' late now, maybe it's me. Heh, I was using it yesterday, and it always seemed too low. I never saw anything but green, and I wondered if I should expect the meter to extend the full width of the window or if there is some non-obvious shorter extent. -- +-DRD-+ |
From: Marco G. <ma...@gi...> - 2010-09-29 17:46:43
|
I made another commit yesterday, with higher values. (Range from -127 to 127 had only a max value of 127 while scale is 255). I had the idea to change from ByteArray to QList<int> (for greater range), or better the whole audioframe, so the we could make an abstract audio class, which can then have, this vu-meter and an histogram for the audiodata. With that i have also red with mp3. Also Video have now sometimes red values. marco On Wed, 29 Sep 2010 10:01:40 -0700, Dan Dennedy <da...@de...> wrote: > On Mon, Sep 27, 2010 at 4:36 PM, jb <jb...@kd...> wrote: >> On Tuesday 28 September 2010 00:13:40 Dan Dennedy wrote: >>> On Mon, Sep 27, 2010 at 2:17 PM, Simon Eugster <sim...@gm...> wrote: >>> > Sorry I cannot comment on your UV yet, but I really cannot run >>> > anything atm :( (and I wanted to show kdenlive in a lecture on >>> > wednesday) >> >> The startup crash is fixed for me if you use latest Kdenlive svn + the small >> MLT patch I sent on MLT's mailing list. >> >> @Marco: >> I made a few changes to the Audio Vu meter (put it in a frame above the >> video). Seems to me like the level is not very accurate, because it goes into >> the red even with low volume clips... but it' late now, maybe it's me. > > Heh, I was using it yesterday, and it always seemed too low. I never > saw anything but green, and I wondered if I should expect the meter to > extend the full width of the window or if there is some non-obvious > shorter extent. |
From: amir <am...@ne...> - 2010-09-29 17:39:03
|
maybe we need a db scale on the meter, as long as the meter can show the correct values. > On Mon, Sep 27, 2010 at 4:36 PM, jb <jb...@kd...> wrote: > > On Tuesday 28 September 2010 00:13:40 Dan Dennedy wrote: > >> On Mon, Sep 27, 2010 at 2:17 PM, Simon Eugster <sim...@gm...> wrote: > >> > Sorry I cannot comment on your UV yet, but I really cannot run > >> > anything atm :( (and I wanted to show kdenlive in a lecture on > >> > wednesday) > > > > The startup crash is fixed for me if you use latest Kdenlive svn + the small > > MLT patch I sent on MLT's mailing list. > > > > @Marco: > > I made a few changes to the Audio Vu meter (put it in a frame above the > > video). Seems to me like the level is not very accurate, because it goes into > > the red even with low volume clips... but it' late now, maybe it's me. > > Heh, I was using it yesterday, and it always seemed too low. I never > saw anything but green, and I wondered if I should expect the meter to > extend the full width of the window or if there is some non-obvious > shorter extent. > > -- > +-DRD-+ > > ------------------------------------------------------------------------------ > Start uncovering the many advantages of virtual appliances > and start using them to simplify application deployment and > accelerate your shift to cloud computing. > http://p.sf.net/sfu/novell-sfdev2dev > _______________________________________________ > Kdenlive-devel mailing list > Kde...@li... > https://lists.sourceforge.net/lists/listinfo/kdenlive-devel > |
From: amir <am...@ne...> - 2010-10-02 03:39:30
|
with the Vu meter I'm getting a few: ALSA lib pcm.c:7245:(snd_pcm_recover) underrun occured which crashes Kdenlive. this didn't happened in previous revisions. > I made another commit yesterday, with higher values. (Range from -127 > to 127 had only a max value of 127 while scale is 255). I had the idea > to change from ByteArray to QList<int> (for greater range), or better > the whole audioframe, so the we could make an abstract audio class, > which can then have, this vu-meter and an histogram for the audiodata. > With that i have also red with mp3. Also Video have now sometimes red > values. > > marco > > On Wed, 29 Sep 2010 10:01:40 -0700, Dan Dennedy <da...@de...> > wrote: > > On Mon, Sep 27, 2010 at 4:36 PM, jb <jb...@kd...> wrote: > >> On Tuesday 28 September 2010 00:13:40 Dan Dennedy wrote: > >>> On Mon, Sep 27, 2010 at 2:17 PM, Simon Eugster <sim...@gm...> wrote: > >>> > Sorry I cannot comment on your UV yet, but I really cannot run > >>> > anything atm :( (and I wanted to show kdenlive in a lecture on > >>> > wednesday) > >> > >> The startup crash is fixed for me if you use latest Kdenlive svn + the small > >> MLT patch I sent on MLT's mailing list. > >> > >> @Marco: > >> I made a few changes to the Audio Vu meter (put it in a frame above the > >> video). Seems to me like the level is not very accurate, because it goes into > >> the red even with low volume clips... but it' late now, maybe it's me. > > > > Heh, I was using it yesterday, and it always seemed too low. I never > > saw anything but green, and I wondered if I should expect the meter to > > extend the full width of the window or if there is some non-obvious > > shorter extent. > > > ------------------------------------------------------------------------------ > Start uncovering the many advantages of virtual appliances > and start using them to simplify application deployment and > accelerate your shift to cloud computing. > http://p.sf.net/sfu/novell-sfdev2dev > _______________________________________________ > Kdenlive-devel mailing list > Kde...@li... > https://lists.sourceforge.net/lists/listinfo/kdenlive-devel > |