This one works good without changing the framerate: gst-launch filesrc "location=1.MPG" ! decodebin ! video/x-raw-yuv, width=640,height=480,framerate=25/1 ! ffmpegcolorspace ! jpegenc ! multipartmux ! tcpserversink host=192.168.2.1 port=5006 But I want to change the framerate so I added "!videoscale!" between decodebin and cap (please notice that I changed framerate to 15): gst-launch filesrc "location=1.MPG" ! decodebin ! videoscale ! video/x-raw-yuv, width=640,height=480,framerate=15/1 ! ffmpegcolorspace ! jpegenc ! multipartmux ! tcpserversink host=192.168.2.1 port=5006 But this one does not work.The error is: (gst-launch-0.10:11600): GLib-WARNING **: g_set_prgname() called multiple times Setting pipeline to PAUSED ... /GstPipeline:pipeline0/GstDecodeBin:decodebin0/GstTypeFindElement:typefind.GstPad:src: caps = video/mpeg, systemstream=(boolean)true, mpegversion=(int)2 Pipeline is PREROLLING ... /GstPipeline:pipeline0/GstDecodeBin:decodebin0/GstMpegPSDemux:mpegpsdemux0.GstPad:sink: caps = video/mpeg, systemstream=(boolean)true, mpegversion=(int)2 /GstPipeline:pipeline0/GstDecodeBin:decodebin0/GstQueue:queue0.GstPad:sink: caps = video/mpeg, mpegversion=(int)2, systemstream=(boolean)false /GstPipeline:pipeline0/GstDecodeBin:decodebin0/GstQueue:queue1.GstPad:sink: caps = audio/mpeg, mpegversion=(int)1 /GstPipeline:pipeline0/GstDecodeBin:decodebin0/GstQueue:queue0.GstPad:src: caps = video/mpeg, mpegversion=(int)2, systemstream=(boolean)false /GstPipeline:pipeline0/GstDecodeBin:decodebin0/MpegVideoParse:mpegvideoparse0.GstPad:sink: caps = video/mpeg, mpegversion=(int)2, systemstream=(boolean)false /GstPipeline:pipeline0/GstDecodeBin:decodebin0/GstQueue:queue1.GstPad:src: caps = audio/mpeg, mpegversion=(int)1 /GstPipeline:pipeline0/GstDecodeBin:decodebin0/GstMPEGAudioParse:mpegaudioparse0.GstPad:sink: caps = audio/mpeg, mpegversion=(int)1 /GstPipeline:pipeline0/GstDecodeBin:decodebin0/MpegVideoParse:mpegvideoparse0.GstPad:src: caps = video/mpeg, systemstream=(boolean)false, parsed=(boolean)true, mpegversion=(int)2, width=(int)640, height=(int)480, framerate=(fraction)25/1, pixel-aspect-ratio=(fraction)1/1, interlaced=(boolean)false, codec_data=(buffer)000001b32801e013ffffe090000001b5148a00010000 /GstPipeline:pipeline0/GstDecodeBin:decodebin0/GstMpeg2dec:mpeg2dec0.GstPad:sink: caps = video/mpeg, systemstream=(boolean)false, parsed=(boolean)true, mpegversion=(int)2, width=(int)640, height=(int)480, framerate=(fraction)25/1, pixel-aspect-ratio=(fraction)1/1, interlaced=(boolean)false, codec_data=(buffer)000001b32801e013ffffe090000001b5148a00010000 /GstPipeline:pipeline0/GstDecodeBin:decodebin0/GstQueue:queue0: max-size-bytes = 20240 /GstPipeline:pipeline0/GstDecodeBin:decodebin0.GstGhostPad:src0: caps = video/x-raw-yuv, format=(fourcc)I420, width=(int)640, height=(int)480, pixel-aspect-ratio=(fraction)1/1, framerate=(fraction)25/1, interlaced=(boolean)false /GstPipeline:pipeline0/GstDecodeBin:decodebin0/GstMpeg2dec:mpeg2dec0.GstPad:src: caps = video/x-raw-yuv, format=(fourcc)I420, width=(int)640, height=(int)480, pixel-aspect-ratio=(fraction)1/1, framerate=(fraction)25/1, interlaced=(boolean)false /GstPipeline:pipeline0/GstDecodeBin:decodebin0/GstMpeg2dec:mpeg2dec0.GstPad:src: caps = video/x-raw-yuv, format=(fourcc)I420, width=(int)640, height=(int)480, pixel-aspect-ratio=(fraction)1/1, framerate=(fraction)25/1, interlaced=(boolean)false /GstPipeline:pipeline0/GstDecodeBin:decodebin0/FluMp3Dec:flump3dec0.GstPad:sink: caps = audio/mpeg, mpegversion=(int)1, mpegaudioversion=(int)1, layer=(int)3, rate=(int)44100, channels=(int)2, parsed=(boolean)true /GstPipeline:pipeline0/GstDecodeBin:decodebin0.GstGhostPad:src1: caps = audio/x-raw-int, endianness=(int)1234, signed=(boolean)true, width=(int)16, depth=(int)16, rate=(int)44100, channels=(int)2 /GstPipeline:pipeline0/GstDecodeBin:decodebin0/FluMp3Dec:flump3dec0.GstPad:src: caps = audio/x-raw-int, endianness=(int)1234, signed=(boolean)true, width=(int)16, depth=(int)16, rate=(int)44100, channels=(int)2 ERROR: from element /GstPipeline:pipeline0/GstDecodeBin:decodebin0/GstMpegPSDemux:mpegpsdemux0: Internal data stream error. Additional debug info: gstmpegdemux.c(2734): gst_flups_demux_loop (): /GstPipeline:pipeline0/GstDecodeBin:decodebin0/GstMpegPSDemux:mpegpsdemux0: stream stopped, reason not-negotiated ERROR: pipeline doesn't want to preroll. Setting pipeline to NULL ... /GstPipeline:pipeline0/GstDecodeBin:decodebin0.GstGhostPad:src1: caps = NULL /GstPipeline:pipeline0/GstDecodeBin:decodebin0.GstGhostPad:src0: caps = NULL /GstPipeline:pipeline0/GstDecodeBin:decodebin0/FluMp3Dec:flump3dec0.GstPad:src: caps = NULL /GstPipeline:pipeline0/GstDecodeBin:decodebin0/FluMp3Dec:flump3dec0.GstPad:sink: caps = NULL /GstPipeline:pipeline0/GstDecodeBin:decodebin0/GstMPEGAudioParse:mpegaudioparse0.GstPad:src: caps = NULL /GstPipeline:pipeline0/GstDecodeBin:decodebin0/GstMPEGAudioParse:mpegaudioparse0.GstPad:sink: caps = NULL /GstPipeline:pipeline0/GstDecodeBin:decodebin0/GstQueue:queue1.GstPad:src: caps = NULL /GstPipeline:pipeline0/GstDecodeBin:decodebin0/GstQueue:queue1.GstPad:sink: caps = NULL /GstPipeline:pipeline0/GstDecodeBin:decodebin0/GstMpeg2dec:mpeg2dec0.GstPad:src: caps = NULL /GstPipeline:pipeline0/GstDecodeBin:decodebin0/GstMpeg2dec:mpeg2dec0.GstPad:sink: caps = NULL /GstPipeline:pipeline0/GstDecodeBin:decodebin0/MpegVideoParse:mpegvideoparse0.GstPad:src: caps = NULL /GstPipeline:pipeline0/GstDecodeBin:decodebin0/MpegVideoParse:mpegvideoparse0.GstPad:sink: caps = NULL /GstPipeline:pipeline0/GstDecodeBin:decodebin0/GstQueue:queue0.GstPad:src: caps = NULL /GstPipeline:pipeline0/GstDecodeBin:decodebin0/GstQueue:queue0.GstPad:sink: caps = NULL /GstPipeline:pipeline0/GstDecodeBin:decodebin0/GstMpegPSDemux:mpegpsdemux0.GstPad:audio_c0: caps = NULL /GstPipeline:pipeline0/GstDecodeBin:decodebin0/GstMpegPSDemux:mpegpsdemux0.GstPad:video_e0: caps = NULL /GstPipeline:pipeline0/GstDecodeBin:decodebin0/GstMpegPSDemux:mpegpsdemux0.GstPad:sink: caps = NULL /GstPipeline:pipeline0/GstDecodeBin:decodebin0/GstTypeFindElement:typefind.GstPad:src: caps = NULL I also tried: gst-launch -v filesrc location=1.MPG ! decodebin ! videoscale ! video/x-raw-yuv, width=640,height=480,framerate=15/1 ! ffmpegcolorspace ! xvimagesink ! But still not working. <div class="gmail_quote">On Sun, Feb 20, 2011 at 2:16 PM, Tim-Philipp Müller <<a href="mailto:t.i.m@zen.co.uk">t.i.m@zen.co.uk</a>> wrote: <blockquote class="gmail_quote" style="margin: 0pt 0pt 0pt 0.8ex; border-left: 1px solid rgb(204, 204, 204); padding-left: 1ex;"> Hi, <div class="im"> > 1.MPG is 640X480, and framerate is 25. </div><div class="im">> > gst-launch filesrc "location=1.MPG" ! decodebin ! video/x-raw-yuv, </div>> > width=640,height=480,framerate=5/1 ! ... There you go then. The framerate doesn't match the one in your capsfilter. Add a videorate element between decodebin and your capsfilter. <div><div></div><div class="h5"> Cheers -Tim _______________________________________________ gstreamer-devel mailing list <a href="mailto:gstreamer-devel@lists.freedesktop.org">gstreamer-devel@lists.freedesktop.org</a> <a href="http://lists.freedesktop.org/mailman/listinfo/gstreamer-devel" target="_blank">http://lists.freedesktop.org/mailman/listinfo/gstreamer-devel</a> </div></div></blockquote></div>