Talk:OpenCV - Revision history

Polto at 16:15, 9 August 2010

2010-08-09T16:15:24Z

← Older revision		Revision as of 16:15, 9 August 2010
Line 63:		Line 63:
	relinked, pausing		relinked, pausing
	state now paused		state now paused
	and facedetect ~~die~~.		and facedetect fall-back to v4l device.

	Looking in:		Looking in:

Polto at 19:29, 29 July 2010

2010-07-29T19:29:27Z

← Older revision		Revision as of 19:29, 29 July 2010
Line 70:		Line 70:

	--[[User:Polto\|Alexandre.Poltorak]] 14:17, 29 July 2010 (CDT)		--[[User:Polto\|Alexandre.Poltorak]] 14:17, 29 July 2010 (CDT)

			= Links =
			== Our [[OpenCV]] wiki page ==
			== OpenCV blogs ==

Polto at 19:17, 29 July 2010

2010-07-29T19:17:35Z

@@ Line 1: / Line 1: @@
 Few people recently expressed interest in using [[OpenCV]] with Elphel cameras.
 Let's concentrate our efforts using [[OpenCV]] wiki page and mailing list.
-----
+= OpenCV with FFMPEG =
 I compiled both OpenCV 2.1 and current git version with FFMPEG support. FFMPEG support seems to work, but FFMPEG itself brake on the MJPEG stream.
@@ Line 42: / Line 43: @@
 Please advise if you have any ideas... --[[User:Polto|Alexandre.Poltorak]] 05:57, 27 July 2010 (CDT)

Polto at 11:23, 27 July 2010

2010-07-27T11:23:44Z

← Older revision		Revision as of 11:23, 27 July 2010
Line 1:		Line 1:
	Few people recently expressed interest in using [[OpenCV]] with Elphel cameras.		Few people recently expressed interest in using [[OpenCV]] with Elphel cameras.

	Let's concentrate our efforts using ~~our~~ wiki and mailing list.		Let's concentrate our efforts using [[OpenCV]] wiki page and mailing list.

	----		----

Polto at 10:57, 27 July 2010

2010-07-27T10:57:36Z

← Older revision		Revision as of 10:57, 27 July 2010
Line 1:		Line 1:
	#~~redirect~~ [[~~Talk~~:~~OpenCV Tennis balls recognizing tutorial~~]]		Few people recently expressed interest in using [[OpenCV]] with Elphel cameras.

			Let's concentrate our efforts using our wiki and mailing list.

			----

			I compiled both OpenCV 2.1 and current git version with FFMPEG support. FFMPEG support seems to work, but FFMPEG itself brake on the MJPEG stream.

			I took the facedetect example in OpenCV-2.1.0/samples/c/facedetect.cpp and just modified one line:
			// CvCapture* capture = 0;
			CvCapture* capture = cvCreateFileCapture("rtsp://192.168.0.9:554");

			Running ./facetedect I can see network load from the camera, but few seconds later the program die with:
			[rtsp @ 0xbefd80]Estimating duration from bitrate, this may be inaccurate
			picture size invalid (0x0)
			Last message repeated 1 times
			[rtsp @ 0xbf2480]Estimating duration from bitrate, this may be inaccurate
			it's an FFMPEG error.

			I tried both stable FFMPEG from Ubuntu 10.04, PPA version from MOTU Media Team and even fresh git version. They all die the same way. Passing -x & -y to ffplay does not help. Here is what I get directly from ffplay rtsp://192.168.0.9:554 :
			FFplay version 0.6-4:0.6-2ubuntu2~lucid1~ppa1, Copyright (c) 2003-2010 the FFmpeg developers
			built on Jul 18 2010 16:06:55 with gcc 4.4.3
			configuration: --extra-version='4:0.6-2ubuntu2~lucid1~ppa1' --prefix=/usr --enable-avfilter --enable-avfilter-lavf --enable-vdpau --enable-bzlib --enable-libgsm --enable- libschroedinger --enable-libspeex --enable-libtheora --enable-libvorbis --enable-vaapi --enable-pthreads --enable-zlib --enable-libvpx --disable-stripping --enable-runtime- cpudetect --enable-gpl --enable-postproc --enable-x11grab --enable-libdc1394 --enable-shared --disable-static
			WARNING: library configuration mismatch
			libavutil configuration: --extra-version='4:0.6-2ubuntu1~lucid1~ppa1' --prefix=/usr --enable-avfilter --enable-avfilter-lavf --enable-vdpau --enable-bzlib --enable-libdirac --enable-libgsm --enable-libopenjpeg --enable-libschroedinger --enable-libspeex --enable-libtheora --enable-libvorbis --enable-vaapi --enable-pthreads --enable-zlib --enable-libvpx --disable-stripping --enable-runtime-cpudetect --enable-libmp3lame --enable-gpl --enable-postproc --enable-x11grab --enable-libfaad --enable-libxvid --enable-libx264 --enable-librtmp --enable-libdc1394 --enable-shared --disable-static
			libavcodec configuration: --extra-version='4:0.6-2ubuntu1~lucid1~ppa1' --prefix=/usr --enable-avfilter --enable-avfilter-lavf --enable-vdpau --enable-bzlib --enable-libdirac --enable-libgsm --enable-libopenjpeg --enable-libschroedinger --enable-libspeex --enable-libtheora --enable-libvorbis --enable-vaapi --enable-pthreads --enable-zlib --enable-libvpx --disable-stripping --enable-runtime-cpudetect --enable-libmp3lame --enable-gpl --enable-postproc --enable-x11grab --enable-libfaad --enable-libxvid --enable-libx264 --enable-librtmp --enable-libdc1394 --enable-shared --disable-static
			libavformat configuration: --extra-version='4:0.6-2ubuntu1~lucid1~ppa1' --prefix=/usr --enable-avfilter --enable-avfilter-lavf --enable-vdpau --enable-bzlib --enable-libdirac --enable-libgsm --enable-libopenjpeg --enable-libschroedinger --enable-libspeex --enable-libtheora --enable-libvorbis --enable-vaapi --enable-pthreads --enable-zlib --enable-libvpx --disable-stripping --enable-runtime-cpudetect --enable-libmp3lame --enable-gpl --enable-postproc --enable-x11grab --enable-libfaad --enable-libxvid --enable-libx264 --enable-librtmp --enable-libdc1394 --enable-shared --disable-static
			libavdevice configuration: --extra-version='4:0.6-2ubuntu1~lucid1~ppa1' --prefix=/usr --enable-avfilter --enable-avfilter-lavf --enable-vdpau --enable-bzlib --enable-libdirac --enable-libgsm --enable-libopenjpeg --enable-libschroedinger --enable-libspeex --enable-libtheora --enable-libvorbis --enable-vaapi --enable-pthreads --enable-zlib --enable-libvpx --disable-stripping --enable-runtime-cpudetect --enable-libmp3lame --enable-gpl --enable-postproc --enable-x11grab --enable-libfaad --enable-libxvid --enable- libx264 --enable-librtmp --enable-libdc1394 --enable-shared --disable-static
			libavutil 50.15. 1 / 50.15. 1
			libavcodec 52.72. 2 / 52.72. 2
			libavformat 52.64. 2 / 52.64. 2
			libavdevice 52. 2. 0 / 52. 2. 0
			libavfilter 1.19. 0 / 1.19. 0
			libswscale 0.11. 0 / 0.11. 0
			libpostproc 51. 2. 0 / 51. 2. 0
			[rtsp @ 0x1c51a10]Estimating duration from bitrate, this may be inaccurate
			Input #0, rtsp, from 'rtsp://192.168.0.9:554':
			Duration: N/A, start: 0.038089, bitrate: N/A
			Stream #0.0: Video: mjpeg, 90k tbr, 90k tbn, 90k tbc
			[ffplay_output @ 0x1c57060]auto-inserting filter 'auto-inserted scaler 0' between the filter 'src' and the filter 'out'
			Impossible to convert between the formats supported by the filter 'src' and the filter 'auto-inserted scaler 0'

			Please advise if you have any ideas... --[[User:Polto\|Alexandre.Poltorak]] 05:57, 27 July 2010 (CDT)

Polto: Talk:OpenCV moved to Talk:OpenCV Tennis balls recognizing tutorial: We will have a more general OpenCV page.

2010-07-27T09:56:03Z

Talk:OpenCV moved to Talk:OpenCV Tennis balls recognizing tutorial: We will have a more general OpenCV page.

New page

#redirect [[Talk:OpenCV Tennis balls recognizing tutorial]]