Le lun, 22/03/2004 à 00:38 +0800, yumi maiko a écrit : > Hi Damien, > If the two cameras are in different color format,or even I don't > know the color format, how can I mix them together? Do I need to You have to convert to the same color format before mixing. > change them to RGB24 separately first before mixing? How to change to > RGB24? There are conversion routines in vconvert.cxx of PWLib. You can ask to pwlib the color format you want. > The video_buffer which store the raw data is 3 times the > framesize,but the buffer used in openmcu code is 1.5 times. So really > can I use the openmcu code to mix the buffer? I think the OpenMCU code always works with YUV420P, which is the color format requested by H.261. > Thanks~~ > > Regards, > wah > > Damien Sandras <damien sandras it-optics com> wrote: > Le dim, 21/03/2004 ? 11:47 +0800, yumi maiko a 矇crit : > > > Hi, > > I am using "BT878(Lifeview FlyVideo 98EZ )" and > > "Logitech USB Camera". When the data are captured from > > camera to the video buffer. does anyone know what > > color format are these two camera used? RGB24 or > > RGB32? I see that the video_buffer size is 3 times the > > It could be any color format supported by GnomeMeeting, you > have to look > at the specs to determine that. > > > framesize,it is clearly that it stores RGB data for > > each pixel. > > We are always using RGB24 to display in GTK, there is thus a > conversion > from the native color format of the camera to RGB24. > > > The second question is that, in gnomemeeting, the > > displayed image data uses YUV420P color format. What > > color format is changed to YUV420P? > > > The displayed image is RGB24 and is converted from the native > color > format of the camera to RGB24. The native color format depends > on the > camera. > > > > > Regards, > > wah > > > > > > _________________________________________________________ > > 敹畾??憌脫???... > > 瘚芣憤?渲 ????鼠 > > http://us.rd.yahoo.com/evt=22281/*http://ringtone.yahoo.com. > hk/ > > _______________________________________________ > > GnomeMeeting-list mailing list > > GnomeMeeting-list gnome org > > http://mail.gnome.org/mailman/listinfo/gnomemeeting-list > > -- > _ Damien Sandras > (o- > //\ It-Optics s.a. > v_/_ GnomeMeeting: http://www.gnomemeeting.org/ > FOSDEM 2004: http://www.fosdem.org > H.323 phone: callto:ils.seconix.com/dsandras seconix com > > > > ATTACHMENT part 2 application/pgp-signature name=signature. > asc > > 必殺技、飲歌、小星星... > 浪漫鈴聲 情心連繫 > http://ringtone.yahoo.com.hk/ > > -- _ Damien Sandras (o- //\ It-Optics s.a. v_/_ GnomeMeeting: http://www.gnomemeeting.org/ FOSDEM 2004: http://www.fosdem.org H.323 phone: callto:ils.seconix.com/dsandras seconix com
Attachment:
signature.asc
Description: Ceci est une partie de message =?ISO-8859-1?Q?num=E9riquement?= =?ISO-8859-1?Q?_sign=E9e?=