PNG encoding produces empty file with ffenc_png
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PNG encoding produces empty file with ffenc_png
 
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Hello,
I am trying on a Freescale ARM-based board to encode JPEG or PNG picture from a webcam source through gst-launch this way: gst-launch-0.10 --verbose v4l2src num-buffers=1 ! ffenc_png ! filesink location=toto.png (I was advised by Freescal support to set num-buffers to 1 because gst-launch never gets out). The result is as follows and produces an empty file: Setting pipeline to PAUSED ... /GstPipeline:pipeline0/GstV4l2Src:v4l2src0.GstPad:src: caps = video/x-raw-yuv, 1 Pipeline is live and does not need PREROLL ... Setting pipeline to PLAYING ... New clock: GstSystemClock /GstPipeline:pipeline0/ffenc_png:ffenc_png0.GstPad:src: caps = image/png, width1 /GstPipeline:pipeline0/ffenc_png:ffenc_png0.GstPad:sink: caps = video/x-raw-yuv1 Got EOS from element "pipeline0". Execution ended after 7175133452 ns. Setting pipeline to PAUSED ... Setting pipeline to READY ... /GstPipeline:pipeline0/ffenc_png:ffenc_png0.GstPad:src: caps = NULL /GstPipeline:pipeline0/ffenc_png:ffenc_png0.GstPad:sink: caps = NULL /GstPipeline:pipeline0/GstV4l2Src:v4l2src0.GstPad:src: caps = NULL Setting pipeline to NULL ... Freeing pipeline ... root@freescale ~$ ls When I try the same command on an Ubuntu system with the same webcam (replacing ffenc_png with pngenc - I do not know why pngenc has been replaced with ffenc_png on the Freescale Linux distro) then I get a right PNG file: gst-launch-0.10 --verbose v4l2src num-buffers=1 ! pngenc ! filesink location=toto.png This produces: Définition du pipeline à PAUSED... /GstPipeline:pipeline0/GstV4l2Src:v4l2src0.GstPad:src: caps = video/x-raw-rgb, bpp=(int)24, depth=(int)24, red_mask=(int)16711680, green_mask=(int)65280, blue_mask=(int)255, endianness=(int)4321, width=(int)640, height=(int)480, framerate=(fraction)30/1 Le pipeline est actif et n'a pas besoin de phase PREROLL... Passage du pipeline à la phase PLAYING... New clock: GstSystemClock /GstPipeline:pipeline0/GstPngEnc:pngenc0.GstPad:src: caps = image/png, width=(int)640, height=(int)480, framerate=(fraction)30/1 /GstPipeline:pipeline0/GstPngEnc:pngenc0.GstPad:sink: caps = video/x-raw-rgb, bpp=(int)24, depth=(int)24, red_mask=(int)16711680, green_mask=(int)65280, blue_mask=(int)255, endianness=(int)4321, width=(int)640, height=(int)480, framerate=(fraction)30/1 /GstPipeline:pipeline0/GstFileSink:filesink0.GstPad:sink: caps = image/png, width=(int)640, height=(int)480, framerate=(fraction)30/1 EOS reçu de l'élément « pipeline0 ». Execution ended after 791913102 ns. Définition du pipeline à PAUSED... Définition du pipeline à READY (prêt)... /GstPipeline:pipeline0/GstFileSink:filesink0.GstPad:sink: caps = NULL /GstPipeline:pipeline0/GstPngEnc:pngenc0.GstPad:src: caps = NULL /GstPipeline:pipeline0/GstPngEnc:pngenc0.GstPad:sink: caps = NULL /GstPipeline:pipeline0/GstV4l2Src:v4l2src0.GstPad:src: caps = NULL Définition du pipeline à NULL... Libération du pipeline (FREE)... On Ubuntu, the first pipe gives more information about the v4l2src, not on the Freescale. What I know is that the webcam is providing video data since I can fill a file when I simply do: gst-launch-0.10 --verbose v4l2src num-buffers=1 ! filesink loc ation=toto.raw I am ready to provide more information if required for debugging this. My first goal is: 1- Do I use the correct syntax with ffenc_png? 2- What do the debug messages mean? I have other issues with the jpeg encoding but first I prefer focusing on PNG encoding. Best Regards, Franz ------------------------------------------------------------------------------ Download Intel® Parallel Studio Eval Try the new software tools for yourself. Speed compiling, find bugs proactively, and fine-tune applications for parallel performance. See why Intel Parallel Studio got high marks during beta. http://p.sf.net/sfu/intel-sw-dev _______________________________________________ gstreamer-devel mailing list [hidden email] https://lists.sourceforge.net/lists/listinfo/gstreamer-devel |
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I’ve just loaded gstreamer on
my iMac. How do I attach my iSight camera as a source? Wes ------------------------------------------------------------------------------ Download Intel® Parallel Studio Eval Try the new software tools for yourself. Speed compiling, find bugs proactively, and fine-tune applications for parallel performance. See why Intel Parallel Studio got high marks during beta. http://p.sf.net/sfu/intel-sw-dev _______________________________________________ gstreamer-devel mailing list [hidden email] https://lists.sourceforge.net/lists/listinfo/gstreamer-devel |
Re: PNG encoding produces empty file with ffenc_png
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In reply to this post by Franz TRIERWEILER
Franz TRIERWEILER wrote:
> Hello, > > I am trying on a Freescale ARM-based board to encode JPEG or PNG > picture from a webcam source through gst-launch this way: > > gst-launch-0.10 --verbose v4l2src num-buffers=1 ! ffenc_png ! > filesink location=toto.png > > (I was advised by Freescal support to set num-buffers to 1 because > gst-launch never gets out). reasons, you will need to dig into bthe differences and figure whats the bug on the ffenc_png element. Stefan > > The result is as follows and produces an empty file: > > Setting pipeline to PAUSED ... > /GstPipeline:pipeline0/GstV4l2Src:v4l2src0.GstPad:src: caps = > video/x-raw-yuv, 1 > Pipeline is live and does not need PREROLL ... > Setting pipeline to PLAYING ... > New clock: GstSystemClock > /GstPipeline:pipeline0/ffenc_png:ffenc_png0.GstPad:src: caps = > image/png, width1 > /GstPipeline:pipeline0/ffenc_png:ffenc_png0.GstPad:sink: caps = > video/x-raw-yuv1 > Got EOS from element "pipeline0". > Execution ended after 7175133452 ns. > Setting pipeline to PAUSED ... > Setting pipeline to READY ... > /GstPipeline:pipeline0/ffenc_png:ffenc_png0.GstPad:src: caps = NULL > /GstPipeline:pipeline0/ffenc_png:ffenc_png0.GstPad:sink: caps = NULL > /GstPipeline:pipeline0/GstV4l2Src:v4l2src0.GstPad:src: caps = NULL > Setting pipeline to NULL ... > Freeing pipeline ... > root@freescale ~$ ls > > When I try the same command on an Ubuntu system with the same webcam > (*replacing ffenc_png with pngenc - I do not know why pngenc has been > replaced with ffenc_png on the Freescale Linux distro*) then I get a > right PNG file: > > gst-launch-0.10 --verbose v4l2src num-buffers=1 ! pngenc ! filesink > location=toto.png > > This produces: > Définition du pipeline à PAUSED... > /GstPipeline:pipeline0/GstV4l2Src:v4l2src0.GstPad:src: caps = > video/x-raw-rgb, bpp=(int)24, depth=(int)24, red_mask=(int)16711680, > green_mask=(int)65280, blue_mask=(int)255, endianness=(int)4321, > width=(int)640, height=(int)480, framerate=(fraction)30/1 > Le pipeline est actif et n'a pas besoin de phase PREROLL... > Passage du pipeline à la phase PLAYING... > New clock: GstSystemClock > /GstPipeline:pipeline0/GstPngEnc:pngenc0.GstPad:src: caps = image/png, > width=(int)640, height=(int)480, framerate=(fraction)30/1 > /GstPipeline:pipeline0/GstPngEnc:pngenc0.GstPad:sink: caps = > video/x-raw-rgb, bpp=(int)24, depth=(int)24, red_mask=(int)16711680, > green_mask=(int)65280, blue_mask=(int)255, endianness=(int)4321, > width=(int)640, height=(int)480, framerate=(fraction)30/1 > /GstPipeline:pipeline0/GstFileSink:filesink0.GstPad:sink: caps = > image/png, width=(int)640, height=(int)480, framerate=(fraction)30/1 > EOS reçu de l'élément « pipeline0 ». > Execution ended after 791913102 ns. > Définition du pipeline à PAUSED... > Définition du pipeline à READY (prêt)... > /GstPipeline:pipeline0/GstFileSink:filesink0.GstPad:sink: caps = NULL > /GstPipeline:pipeline0/GstPngEnc:pngenc0.GstPad:src: caps = NULL > /GstPipeline:pipeline0/GstPngEnc:pngenc0.GstPad:sink: caps = NULL > /GstPipeline:pipeline0/GstV4l2Src:v4l2src0.GstPad:src: caps = NULL > Définition du pipeline à NULL... > Libération du pipeline (FREE)... > > On Ubuntu, the first pipe gives more information about the v4l2src, > not on the Freescale. > > What I know is that the webcam is providing video data since I can > fill a file when I simply do: > > gst-launch-0.10 --verbose v4l2src num-buffers=1 ! filesink loc > ation=toto.raw > > I am ready to provide more information if required for debugging this. > My first goal is: > 1- Do I use the correct syntax with ffenc_png? > 2- What do the debug messages mean? > > I have other issues with the jpeg encoding but first I prefer focusing > on PNG encoding. > > Best Regards, > Franz > > ------------------------------------------------------------------------ > > ------------------------------------------------------------------------------ > Download Intel® Parallel Studio Eval > Try the new software tools for yourself. Speed compiling, find bugs > proactively, and fine-tune applications for parallel performance. > See why Intel Parallel Studio got high marks during beta. > http://p.sf.net/sfu/intel-sw-dev > ------------------------------------------------------------------------ > > _______________________________________________ > gstreamer-devel mailing list > [hidden email] > https://lists.sourceforge.net/lists/listinfo/gstreamer-devel > ------------------------------------------------------------------------------ Download Intel® Parallel Studio Eval Try the new software tools for yourself. Speed compiling, find bugs proactively, and fine-tune applications for parallel performance. See why Intel Parallel Studio got high marks during beta. http://p.sf.net/sfu/intel-sw-dev _______________________________________________ gstreamer-devel mailing list [hidden email] https://lists.sourceforge.net/lists/listinfo/gstreamer-devel |
Re: PNG encoding produces empty file with ffenc_png
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Hello,
Indeed, I made a try with pngenc but this one is not available on the Linux package provided by Freescale (i.MX25). Maybe should I grab the project and recompile it for the ARM. Franz Le 8 avr. 2010 à 14:16, Stefan Kost a écrit : > Franz TRIERWEILER wrote: >> Hello, >> >> I am trying on a Freescale ARM-based board to encode JPEG or PNG >> picture from a webcam source through gst-launch this way: >> >> gst-launch-0.10 --verbose v4l2src num-buffers=1 ! ffenc_png ! >> filesink location=toto.png >> >> (I was advised by Freescal support to set num-buffers to 1 because >> gst-launch never gets out). > Just also use pngenc on the freescaleboard. If you can't for whatever > reasons, you will need to dig into bthe differences and figure whats the > bug on the ffenc_png element. > > Stefan > >> >> The result is as follows and produces an empty file: >> >> Setting pipeline to PAUSED ... >> /GstPipeline:pipeline0/GstV4l2Src:v4l2src0.GstPad:src: caps = >> video/x-raw-yuv, 1 >> Pipeline is live and does not need PREROLL ... >> Setting pipeline to PLAYING ... >> New clock: GstSystemClock >> /GstPipeline:pipeline0/ffenc_png:ffenc_png0.GstPad:src: caps = >> image/png, width1 >> /GstPipeline:pipeline0/ffenc_png:ffenc_png0.GstPad:sink: caps = >> video/x-raw-yuv1 >> Got EOS from element "pipeline0". >> Execution ended after 7175133452 ns. >> Setting pipeline to PAUSED ... >> Setting pipeline to READY ... >> /GstPipeline:pipeline0/ffenc_png:ffenc_png0.GstPad:src: caps = NULL >> /GstPipeline:pipeline0/ffenc_png:ffenc_png0.GstPad:sink: caps = NULL >> /GstPipeline:pipeline0/GstV4l2Src:v4l2src0.GstPad:src: caps = NULL >> Setting pipeline to NULL ... >> Freeing pipeline ... >> root@freescale ~$ ls >> >> When I try the same command on an Ubuntu system with the same webcam >> (*replacing ffenc_png with pngenc - I do not know why pngenc has been >> replaced with ffenc_png on the Freescale Linux distro*) then I get a >> right PNG file: >> >> gst-launch-0.10 --verbose v4l2src num-buffers=1 ! pngenc ! filesink >> location=toto.png >> >> This produces: >> Définition du pipeline à PAUSED... >> /GstPipeline:pipeline0/GstV4l2Src:v4l2src0.GstPad:src: caps = >> video/x-raw-rgb, bpp=(int)24, depth=(int)24, red_mask=(int)16711680, >> green_mask=(int)65280, blue_mask=(int)255, endianness=(int)4321, >> width=(int)640, height=(int)480, framerate=(fraction)30/1 >> Le pipeline est actif et n'a pas besoin de phase PREROLL... >> Passage du pipeline à la phase PLAYING... >> New clock: GstSystemClock >> /GstPipeline:pipeline0/GstPngEnc:pngenc0.GstPad:src: caps = image/png, >> width=(int)640, height=(int)480, framerate=(fraction)30/1 >> /GstPipeline:pipeline0/GstPngEnc:pngenc0.GstPad:sink: caps = >> video/x-raw-rgb, bpp=(int)24, depth=(int)24, red_mask=(int)16711680, >> green_mask=(int)65280, blue_mask=(int)255, endianness=(int)4321, >> width=(int)640, height=(int)480, framerate=(fraction)30/1 >> /GstPipeline:pipeline0/GstFileSink:filesink0.GstPad:sink: caps = >> image/png, width=(int)640, height=(int)480, framerate=(fraction)30/1 >> EOS reçu de l'élément « pipeline0 ». >> Execution ended after 791913102 ns. >> Définition du pipeline à PAUSED... >> Définition du pipeline à READY (prêt)... >> /GstPipeline:pipeline0/GstFileSink:filesink0.GstPad:sink: caps = NULL >> /GstPipeline:pipeline0/GstPngEnc:pngenc0.GstPad:src: caps = NULL >> /GstPipeline:pipeline0/GstPngEnc:pngenc0.GstPad:sink: caps = NULL >> /GstPipeline:pipeline0/GstV4l2Src:v4l2src0.GstPad:src: caps = NULL >> Définition du pipeline à NULL... >> Libération du pipeline (FREE)... >> >> On Ubuntu, the first pipe gives more information about the v4l2src, >> not on the Freescale. >> >> What I know is that the webcam is providing video data since I can >> fill a file when I simply do: >> >> gst-launch-0.10 --verbose v4l2src num-buffers=1 ! filesink loc >> ation=toto.raw >> >> I am ready to provide more information if required for debugging this. >> My first goal is: >> 1- Do I use the correct syntax with ffenc_png? >> 2- What do the debug messages mean? >> >> I have other issues with the jpeg encoding but first I prefer focusing >> on PNG encoding. >> >> Best Regards, >> Franz >> >> ------------------------------------------------------------------------ >> >> ------------------------------------------------------------------------------ >> Download Intel® Parallel Studio Eval >> Try the new software tools for yourself. Speed compiling, find bugs >> proactively, and fine-tune applications for parallel performance. >> See why Intel Parallel Studio got high marks during beta. >> http://p.sf.net/sfu/intel-sw-dev >> ------------------------------------------------------------------------ >> >> _______________________________________________ >> gstreamer-devel mailing list >> [hidden email] >> https://lists.sourceforge.net/lists/listinfo/gstreamer-devel >> > > > ------------------------------------------------------------------------------ > Download Intel® Parallel Studio Eval > Try the new software tools for yourself. Speed compiling, find bugs > proactively, and fine-tune applications for parallel performance. > See why Intel Parallel Studio got high marks during beta. > http://p.sf.net/sfu/intel-sw-dev > _______________________________________________ > gstreamer-devel mailing list > [hidden email] > https://lists.sourceforge.net/lists/listinfo/gstreamer-devel ------------------------------------------------------------------------------ Download Intel® Parallel Studio Eval Try the new software tools for yourself. Speed compiling, find bugs proactively, and fine-tune applications for parallel performance. See why Intel Parallel Studio got high marks during beta. http://p.sf.net/sfu/intel-sw-dev _______________________________________________ gstreamer-devel mailing list [hidden email] https://lists.sourceforge.net/lists/listinfo/gstreamer-devel |
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