id summary reporter owner description type status priority component version resolution keywords cc blockedby blocking reproduced analyzed 1570 libv4l2: error dequeuing buf: Resource temporarily unavailable llarevo "Capturing from analog card Terratec Cinergy 400 TV isn't possible in ffmpeg versions from 0.7.13 to 0.11.1. Capturing from and Terratec Cinergy XS USB is working fine. Both cards are proved OK for Linux and working with all of my other apps (tvtime, xawtv, mplayer, mencoder). See my discussion on linux-media http://article.gmane.org/gmane.linux.drivers.video-input-infrastructure/51055 I'm using Fedora 17 and tried different versions from 0.5.x with different hardware. The cards were tuned to Channel E10 (europe-west) and had good quality signal (analog cable). The test results are {{{ Cinergy XS USB Cinergy 400 TV 0.5.10 OK OK 0.7.13 OK broken (differently, s.b.) 0.8.12 OK broken (differently, s.b.) 0.9.2 OK broken (differently, s.b.) 0.9.2 (--enable-libv4l2) OK broken (like in title) 0.10.4 (--enable-libv4l2) OK broken (like in title) 0.11.1 OK broken (differently, s.b.) 0.11.1 (--enable-libv4l2) OK broken (like in title) }}} The detailed error from the broken test cases are below. Further testing results in a regression introduced with version 70f7736 in 2009: {{{ 01058893 2010-09-12 19:44:45 OK 6ac6e3d 2010-09-23 03:40:06 OK 70f7736 2010-09-23 09:16:05 not OK 30b4ee79 2011-09-23 20:50:11 not OK }}} There seems to be a problem with setting the frame rate, because when the frame rate is given, the result is: {{{ /usr/local/bin/ffmpeg -t 300 -f video4linux2 -s vga -r 25 -b 2000k -i /dev/video0 out-vga-2M-5min.mpg FFmpeg version git-70f7736, Copyright (c) 2000-2010 the FFmpeg developers built on Jul 24 2012 11:18:05 with gcc 4.7.0 20120507 (Red Hat 4.7.0-5) configuration: --prefix=/usr/local --libdir=/usr/local/lib64 --shlibdir=/usr/local/lib64 --enable-nonfree --enable-gpl --enable-libfaac --enable-libgsm --enable-libmp3lame --enable-libtheora --enable-libxvid --disable-asm libavutil 50.27. 0 / 50.27. 0 libavcore 0. 9. 0 / 0. 9. 0 libavcodec 52.89. 0 / 52.89. 0 libavformat 52.78. 5 / 52.78. 5 libavdevice 52. 2. 2 / 52. 2. 2 libavfilter 1.39. 0 / 1.39. 0 libswscale 0.11. 0 / 0.11. 0 [video4linux2 @ 0x2b16c90] ioctl set time per frame(1/25) failed /dev/video0: Input/output error }}} ** DETAILED OUTPUT OF THE TESTCASES IN THE TABLE ABOVE ** 0.11.1 (--enable-lib4vl2) Terratec Cinergy 400 TV {{{ ffmpeg -y -t 300 -f video4linux2 -s vga -b:v 2000k -i /dev/video0 -target pal-dvd out-vga-2M-5min.mpg ffmpeg version 0.11.1 Copyright (c) 2000-2012 the FFmpeg developers built on Jul 20 2012 15:52:59 with gcc 4.7.0 20120507 (Red Hat 4.7.0-5) configuration: --prefix=/usr/local --libdir=/usr/local/lib64 --shlibdir=/usr/local/lib64 --enable-nonfree --enable-runtime-cpudetect --enable-libass --enable-libbluray --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libfaac --enable-libfreetype --enable-libgsm --enable-libmp3lame --enable-libopenjpeg --enable-libpulse --enable-libschroedinger --enable-libspeex --enable-libtheora --enable-libv4l2 --enable-libvo-amrwbenc --enable-libvpx --enable-libx264 --enable-libxvid --enable-openssl --enable-gpl --enable-version3 --disable-crystalhd libavutil 51. 54.100 / 51. 54.100 libavcodec 54. 23.100 / 54. 23.100 libavformat 54. 6.100 / 54. 6.100 libavdevice 54. 0.100 / 54. 0.100 libavfilter 2. 77.100 / 2. 77.100 libswscale 2. 1.100 / 2. 1.100 libswresample 0. 15.100 / 0. 15.100 libpostproc 52. 0.100 / 52. 0.100 libv4l2: error dequeuing buf: Resource temporarily unavailable (10000 times/s this Error)^C Estimating duration from bitrate, this may be inaccurate Input #0, video4linux2,v4l2, from '/dev/video0': Duration: N/A, start: 1342800064.407901, bitrate: N/A Stream #0:0: Video: rawvideo (I420 / 0x30323449), yuv420p, 640x480, -2147483 kb/s, 1.67 tbr, 1000k tbn, 1000k tbc [buffer @ 0x3120c40] w:640 h:480 pixfmt:yuv420p tb:1/1000000 sar:0/1 sws_param:flags=2 [buffersink @ 0x3120a60] No opaque field provided [scale @ 0x3121300] w:640 h:480 fmt:yuv420p sar:0/1 -> w:720 h:576 fmt:yuv420p sar:0/1 flags:0x4 Output #0, dvd, to 'out-vga-2M-5min.mpg': Metadata: encoder : Lavf54.6.100 Stream #0:0: Video: mpeg2video, yuv420p, 720x576, q=2-31, 6000 kb/s, 90k tbn, 25 tbc Stream mapping: Stream #0:0 -> #0:0 (rawvideo -> mpeg2video) Press [q] to stop, [?] for help frame= 0 fps=0.0 q=0.0 Lsize= 0kB time=00:00:00.00 bitrate= 0.0kbits/s video:0kB audio:0kB global headers:0kB muxing overhead -nan% Output file is empty, nothing was encoded (check -ss / -t / -frames parameters if used) Received signal 2: terminating. }}} 0.11.1 (without --enable-libv4l2) Terratec Cinergy 400 TV {{{ ffmpeg -y -t 300 -f video4linux2 -s vga -b:v 2000k -i /dev/video0 -target pal-dvd out-vga-2M-5min.mpg ffmpeg version 0.11.1 Copyright (c) 2000-2012 the FFmpeg developers built on Jul 20 2012 18:21:19 with gcc 4.7.0 20120507 (Red Hat 4.7.0-5) configuration: --prefix=/usr/local --libdir=/usr/local/lib64 --shlibdir=/usr/local/lib64 --enable-nonfree --enable-runtime-cpudetect --enable-libass --enable-libbluray --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libfaac --enable-libfreetype --enable-libgsm --enable-libmp3lame --enable-libopenjpeg --enable-libpulse --enable-libschroedinger --enable-libspeex --enable-libtheora --enable-libvo-amrwbenc --enable-libvpx --enable-libx264 --enable-libxvid --enable-openssl --enable-gpl --enable-version3 --disable-crystalhd libavutil 51. 54.100 / 51. 54.100 libavcodec 54. 23.100 / 54. 23.100 libavformat 54. 6.100 / 54. 6.100 libavdevice 54. 0.100 / 54. 0.100 libavfilter 2. 77.100 / 2. 77.100 libswscale 2. 1.100 / 2. 1.100 libswresample 0. 15.100 / 0. 15.100 libpostproc 52. 0.100 / 52. 0.100 ^CEstimating duration from bitrate, this may be inaccurate Input #0, video4linux2,v4l2, from '/dev/video0': Duration: N/A, start: 1342801330.121303, bitrate: N/A Stream #0:0: Video: rawvideo (I420 / 0x30323449), yuv420p, 640x480, -2147483 kb/s, 1.67 tbr, 1000k tbn, 1000k tbc [buffer @ 0x182aa60] w:640 h:480 pixfmt:yuv420p tb:1/1000000 sar:0/1 sws_param:flags=2 [buffersink @ 0x182b300] No opaque field provided [scale @ 0x1831a20] w:640 h:480 fmt:yuv420p sar:0/1 -> w:720 h:576 fmt:yuv420p sar:0/1 flags:0x4 Output #0, dvd, to 'out-vga-2M-5min.mpg': Metadata: encoder : Lavf54.6.100 Stream #0:0: Video: mpeg2video, yuv420p, 720x576, q=2-31, 6000 kb/s, 90k tbn, 25 tbc Stream mapping: Stream #0:0 -> #0:0 (rawvideo -> mpeg2video) Press [q] to stop, [?] for help frame= 0 fps=0.0 q=0.0 Lsize= 0kB time=00:00:00.00 bitrate= 0.0kbits/s video:0kB audio:0kB global headers:0kB muxing overhead -nan% Output file is empty, nothing was encoded (check -ss / -t / -frames parameters if used) Received signal 2: terminating. }}} 0.10.4. (--enable-libv4l2) Terratec Cinergy 400 TV {{{ ffmpeg -y -t 300 -f video4linux2 -s vga -b:v 2000k -i /dev/video0 -target pal-dvd out-vga-2M-5min.mpg ffmpeg version 0.10.4 Copyright (c) 2000-2012 the FFmpeg developers built on Jun 13 2012 09:51:06 with gcc 4.7.0 20120507 (Red Hat 4.7.0-5) configuration: --prefix=/usr --bindir=/usr/bin --datadir=/usr/share/ffmpeg --incdir=/usr/include/ffmpeg --libdir=/usr/lib64 --mandir=/usr/share/man --arch=x86_64 --extra-cflags='-O2 -g -pipe -Wall -Wp,-D_FORTIFY_SOURCE=2 -fexceptions -fstack-protector --param=ssp-buffer-size=4 -m64 -mtune=generic' --enable-bzlib --disable-crystalhd --enable-gnutls --enable-libass --enable-libcdio --enable-libcelt --enable-libdc1394 --disable-indev=jack --enable-libfreetype --enable-libgsm --enable-libmp3lame --enable-openal --enable-libopenjpeg --enable-libpulse --enable-librtmp --enable-libschroedinger --enable-libspeex --enable-libtheora --enable-libvorbis --enable-libv4l2 --enable-libvpx --enable-libx264 --enable-libxvid --enable-x11grab --enable-avfilter --enable-postproc --enable-pthreads --disable-static --enable-shared --enable-gpl --disable-debug --disable-stripping --shlibdir=/usr/lib64 --enable-runtime-cpudetect libavutil 51. 35.100 / 51. 35.100 libavcodec 53. 61.100 / 53. 61.100 libavformat 53. 32.100 / 53. 32.100 libavdevice 53. 4.100 / 53. 4.100 libavfilter 2. 61.100 / 2. 61.100 libswscale 2. 1.100 / 2. 1.100 libswresample 0. 6.100 / 0. 6.100 libpostproc 52. 0.100 / 52. 0.100 libv4l2: error dequeuing buf: Resource temporarily unavailable (10000 times/s this Error)^C Estimating duration from bitrate, this may be inaccurate Input #0, video4linux2,v4l2, from '/dev/video0': Duration: N/A, start: 1342801628.759741, bitrate: N/A Stream #0:0: Video: rawvideo (I420 / 0x30323449), yuv420p, 640x480, -2147483 kb/s, 1.67 tbr, 1000k tbn, 1000k tbc [buffer @ 0x1de0020] w:640 h:480 pixfmt:yuv420p tb:1/1000000 sar:0/1 sws_param: [scale @ 0x1de7d60] w:640 h:480 fmt:yuv420p -> w:720 h:576 fmt:yuv420p flags:0x4 Output #0, dvd, to 'out-vga-2M-5min.mpg': Metadata: encoder : Lavf53.32.100 Stream #0:0: Video: mpeg2video, yuv420p, 720x576, q=2-31, 6000 kb/s, 90k tbn, 25 tbc Stream mapping: Stream #0:0 -> #0:0 (rawvideo -> mpeg2video) Press [q] to stop, [?] for help frame= 0 fps= 0 q=0.0 Lsize= 0kB time=00:00:00.00 bitrate= 0.0kbits/s video:0kB audio:0kB global headers:0kB muxing overhead -nan% Output file is empty, nothing was encoded (check -ss / -t / -frames parameters if used) Received signal 2: terminating. }}} 0.9.2 (--enable-libv4l2) Terratec Cinergy 400 TV {{{ ffmpeg -y -t 300 -f video4linux2 -s vga -b:v 2000k -i /dev/video0 -target pal-dvd out-vga-2M-5min.mpg ffmpeg version 0.9.2, Copyright (c) 2000-2012 the FFmpeg developers built on Jul 20 2012 16:34:02 with gcc 4.7.0 20120507 (Red Hat 4.7.0-5) configuration: --prefix=/usr/local --libdir=/usr/local/lib64 --shlibdir=/usr/local/lib64 --enable-nonfree --enable-runtime-cpudetect --enable-libass --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libfaac --enable-libfreetype --enable-libgsm --enable-libmp3lame --enable-libopenjpeg --enable-libpulse --enable-libschroedinger --enable-libspeex --enable-libtheora --enable-libv4l2 --enable-libvo-amrwbenc --enable-libvpx --enable-libx264 --enable-libxvid --enable-openssl --enable-gpl --enable-version3 --disable-crystalhd libavutil 51. 32. 0 / 51. 32. 0 libavcodec 53. 42. 4 / 53. 42. 4 libavformat 53. 24. 2 / 53. 24. 2 libavdevice 53. 4. 0 / 53. 4. 0 libavfilter 2. 53. 0 / 2. 53. 0 libswscale 2. 1. 0 / 2. 1. 0 libpostproc 51. 2. 0 / 51. 2. 0 libv4l2: error dequeuing buf: Resource temporarily unavailable (10000 times/s this Error)^C Estimating duration from bitrate, this may be inaccurate /dev/video0: could not find codec parameters }}} 0.9.2 (without --enable-libv4l2) Terratec Cinergy 400 TV {{{ ffmpeg -y -t 300 -f video4linux2 -s vga -b:v 2000k -i /dev/video0 -target pal-dvd out-vga-2M-5min.mpg ffmpeg version 0.9.2, Copyright (c) 2000-2012 the FFmpeg developers built on Jul 20 2012 18:08:18 with gcc 4.7.0 20120507 (Red Hat 4.7.0-5) configuration: --prefix=/usr/local --libdir=/usr/local/lib64 --shlibdir=/usr/local/lib64 --enable-nonfree --enable-runtime-cpudetect --enable-libass --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libfaac --enable-libfreetype --enable-libgsm --enable-libmp3lame --enable-libopenjpeg --enable-libpulse --enable-libschroedinger --enable-libspeex --enable-libtheora --enable-libvo-amrwbenc --enable-libvpx --enable-libx264 --enable-libxvid --enable-openssl --enable-gpl --enable-version3 --disable-crystalhd libavutil 51. 32. 0 / 51. 32. 0 libavcodec 53. 42. 4 / 53. 42. 4 libavformat 53. 24. 2 / 53. 24. 2 libavdevice 53. 4. 0 / 53. 4. 0 libavfilter 2. 53. 0 / 2. 53. 0 libswscale 2. 1. 0 / 2. 1. 0 libpostproc 51. 2. 0 / 51. 2. 0 ^C Estimating duration from bitrate, this may be inaccurate /dev/video0: could not find codec parameters Received signal 2: terminating. }}} 0.8.12 Terratec Cinergy 400 TV {{{ ffmpeg -y -t 300 -f video4linux2 -s vga -b 2000k -i /dev/video0 -target pal-dvd out-vga-2M-5min.mpg ffmpeg version 0.8.12, Copyright (c) 2000-2011 the FFmpeg developers built on Jul 20 2012 16:39:40 with gcc 4.7.0 20120507 (Red Hat 4.7.0-5) configuration: --prefix=/usr/local --libdir=/usr/local/lib64 --shlibdir=/usr/local/lib64 --enable-nonfree --enable-runtime-cpudetect --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libfaac --enable-libfreetype --enable-libgsm --enable-libmp3lame --enable-libopenjpeg --enable-libschroedinger --enable-libspeex --enable-libtheora --enable-libvo-amrwbenc --enable-libvpx --enable-libx264 --enable-libxvid --enable-gpl --enable-version3 --disable-crystalhd libavutil 51. 9. 1 / 51. 9. 1 libavcodec 53. 8. 0 / 53. 8. 0 libavformat 53. 5. 0 / 53. 5. 0 libavdevice 53. 1. 1 / 53. 1. 1 libavfilter 2. 23. 0 / 2. 23. 0 libswscale 2. 0. 0 / 2. 0. 0 libpostproc 51. 2. 0 / 51. 2. 0 ^C }}} 0.7.13 Terratec Cinergy 400 TV {{{ ffmpeg -y -t 300 -f video4linux2 -s vga -b 2000k -i /dev/video0 -target pal-dvd out-vga-2M-5min.mpg ffmpeg version 0.7.13, Copyright (c) 2000-2011 the FFmpeg developers built on Jul 20 2012 16:50:52 with gcc 4.7.0 20120507 (Red Hat 4.7.0-5) configuration: --prefix=/usr/local --libdir=/usr/local/lib64 --shlibdir=/usr/local/lib64 --enable-nonfree --enable-runtime-cpudetect --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libfaac --enable-libfreetype --enable-libgsm --enable-libmp3lame --enable-libopenjpeg --enable-libschroedinger --enable-libspeex --enable-libtheora --enable-libvo-amrwbenc --enable-libvpx --enable-libx264 --enable-libxvid --enable-gpl --enable-version3 --disable-crystalhd libavutil 50. 43. 0 / 50. 43. 0 libavcodec 52.123. 0 / 52.123. 0 libavformat 52.111. 0 / 52.111. 0 libavdevice 52. 5. 0 / 52. 5. 0 libavfilter 1. 80. 0 / 1. 80. 0 libswscale 0. 14. 1 / 0. 14. 1 libpostproc 51. 2. 0 / 51. 2. 0 ^C }}} For comparison, here's the link to the thread on ffmpeg-media, where I found great help: http://ffmpeg.org/pipermail/ffmpeg-user/2012-July/008210.html" defect closed important avdevice git-master fixed v4l2 regression 1 1