<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN"> <HTML><HEAD> <META http-equiv=Content-Type content="text/html; charset=us-ascii"> <META content="MSHTML 6.00.6000.17098" name=GENERATOR></HEAD> <BODY> <P><FONT face="Microsoft Sans Serif" color=black size=2><B>UNCLASSIFIED</B></FONT></P> <DIV dir=ltr align=left><FONT face=Arial color=#0000ff size=2><SPAN class=737000605-02082011>I am making slight progress with this problem. I have fully defined the caps for APPSRC to match those specified as a SINK in ffmpegcolorspace. My new pipeline is (the rest of the source is below in the original email):</SPAN></FONT></DIV> <DIV dir=ltr align=left><FONT face=Arial color=#0000ff size=2><SPAN class=737000605-02082011></SPAN></FONT> </DIV> <BLOCKQUOTE dir=ltr style="MARGIN-RIGHT: 0px"> <DIV dir=ltr align=left><FONT face=Arial color=#0000ff size=2><SPAN class=737000605-02082011>  char *fullPipelineDesc = "appsrc is-live=true name=\"adsssrc\" caps=\"video/x-raw-rgb,width=704,height=480,framerate=(fraction)25/1,bpp=24,depth=24,red_mask=255,green_mask=65280,blue_mask=16711680,endianness=4321\" ! ffmpegcolorspace ! video/x-raw-yuv,width=704,height=480,framerate=(fraction)25/1,format=(fourcc)I420 ! ffenc_mpeg2video ! mpegtsmux ! filesink location=processed.mpg ";</SPAN></FONT></DIV></BLOCKQUOTE> <DIV dir=ltr align=left><FONT face=Arial color=#0000ff size=2><SPAN class=737000605-02082011></SPAN></FONT> </DIV> <DIV dir=ltr align=left><FONT face=Arial color=#0000ff size=2><SPAN class=737000605-02082011>With this I see the following error:</SPAN></FONT></DIV> <DIV dir=ltr align=left><FONT face=Arial color=#0000ff size=2><SPAN class=737000605-02082011></SPAN></FONT> </DIV> <BLOCKQUOTE dir=ltr style="MARGIN-RIGHT: 0px"> <DIV dir=ltr align=left><FONT face=Arial color=#0000ff size=2>  basetransform gstbasetransform.c:1047:gst_base_transform_acceptcaps:<capsfilter0>ESC[00m transform could not transform video/x-raw-rgb, width=(int)704, height=(int)480, framerate=(fraction)25/1, bpp=(int)24, depth=(int)24, red_mask=(int)255, green_mask=(int)65280, blue_mask=(int)16711680, endianness=(int)4321 in anything we support</FONT></DIV></BLOCKQUOTE> <DIV><FONT face=Arial color=#0000ff size=2><SPAN class=737000605-02082011>This puzzles me as the both the sink and src capabilities match the output I see from "gst-inspect-0.10 ffmpegcolorspace". Am I missing something?</SPAN></FONT></DIV> <DIV><FONT face=Arial color=#0000ff size=2><SPAN class=737000605-02082011></SPAN></FONT> </DIV> <DIV><FONT face=Arial color=#0000ff size=2><SPAN class=737000605-02082011>Thanks,</SPAN></FONT></DIV> <DIV><FONT face=Arial color=#0000ff size=2><SPAN class=737000605-02082011>Paul</SPAN></FONT></DIV> <DIV><FONT face=Arial color=#0000ff size=2></FONT> </DIV><BR> <P><FONT face="microsoft sans serif" color=red size=2><B>IMPORTANT</B>: This email remains the property of the Department of Defence and is subject to the jurisdiction of section 70 of the Crimes Act 1914. If you have received this email in error, you are requested to contact the sender and delete the email. <BR></FONT><FONT face="microsoft sans serif" color=black size=2></FONT></P> <DIV class=OutlookMessageHeader lang=en-us dir=ltr align=left> <HR tabIndex=-1> <FONT face=Tahoma size=2><B>From:</B> Durrand, Paul (Contractor) <BR><B>Sent:</B> Monday, 1 August 2011 3:49 PM<BR><B>To:</B> 'Discussion of the development of and with GStreamer'<BR><B>Subject:</B> Writing raw frames to mpegts [SEC=UNCLASSIFIED]<BR></FONT><BR></DIV> <DIV></DIV> <P><FONT face="Microsoft Sans Serif" color=black size=2><B>UNCLASSIFIED</B></FONT></P> <DIV><SPAN class=028073105-28072011><FONT face=Arial size=2>Hi,</FONT></SPAN></DIV> <DIV><SPAN class=028073105-28072011><FONT face=Arial size=2></FONT></SPAN> </DIV> <DIV><SPAN class=028073105-28072011><FONT face=Arial size=2>I am currently trying to develop an application which utilises GStreamer to write and YUV format mpegts file. The driver uses appsrc to write raw RGB frames to a YUV mpegts file.</FONT></SPAN></DIV> <DIV><SPAN class=028073105-28072011><FONT face=Arial size=2></FONT></SPAN> </DIV> <DIV><SPAN class=028073105-28072011><FONT face=Arial size=2>I am trying to get a pipeline together and as I'm new to GStreamer I am not quite sure which plugins and caps to set.I was hoping someone can point me in the right direction.</FONT></SPAN></DIV> <DIV><SPAN class=028073105-28072011><FONT face=Arial size=2></FONT></SPAN> </DIV> <DIV><SPAN class=028073105-28072011><FONT face=Arial size=2>With the pipeline: <STRONG>"appsrc name=\"adsssrc\" caps=\"video/x-raw-rgb,width=704,height=480,framerate=(fraction)25/1\" ! ffmpegcolorspace ! video/x-raw-yuv<SPAN class=028073105-28072011> </SPAN>! ffenc_mpeg2video ! mpegtsmux ! filesink location=processed.mpg " </STRONG>I get the following errors:</FONT></SPAN></DIV> <BLOCKQUOTE dir=ltr style="MARGIN-RIGHT: 0px"> <DIV dir=ltr style="MARGIN-RIGHT: 0px"><SPAN class=028073105-28072011><FONT face=Arial size=2><STRONG> </STRONG>0:00:00.107419734 ESC[332m28183ESC[00m      0x2556010 ESC[32;01mINFO   ESC[00m ESC[00;01;31m          GST_STATES gstbin.c:2425:gst_bin_change_state_func:<bin0>ESC[00m child 'adsssrc' changed state to 3(PAUSED) successfully<BR>0:00:00.140944498 ESC[332m28183ESC[00m      0x2758f90 ESC[33;01mWARN   ESC[00m ESC[00m       basetransform gstbasetransform.c:1047:gst_base_transform_acceptcaps:<capsfilter0>ESC[00m transform could not transform video/x-raw-rgb, width=(int)704, height=(int)480, framerate=(fraction)25/1 in anything we support<BR>0:00:00.141210658 ESC[332m28183ESC[00m      0x2758f90 ESC[33;01mWARN   ESC[00m ESC[00m       basetransform gstbasetransform.c:1144:gst_base_transform_setcaps:<ffmpegcsp0>ESC[00m FAILED to configure caps <ffmpegcsp0:src> to accept video/x-raw-yuv, width=(int)704, height=(int)480, framerate=(fraction)25/1, format=(fourcc)I420<BR>0:00:00.141441378 ESC[332m28183ESC[00m      0x2758f90 ESC[32;01mINFO   ESC[00m ESC[00m             basesrc gstbasesrc.c:2447:gst_base_src_loop:<adsssrc>ESC[00m pausing after gst_pad_push() = not-negotiated</FONT></SPAN></DIV></BLOCKQUOTE><SPAN class=028073105-28072011><FONT face=Arial size=2> <DIV dir=ltr style="MARGIN-RIGHT: 0px"></FONT></SPAN><SPAN class=028073105-28072011><FONT face=Arial size=2>My test source is below:</FONT></SPAN></DIV> <DIV><SPAN class=028073105-28072011><FONT face=Arial size=2></FONT></SPAN> </DIV> <BLOCKQUOTE dir=ltr style="MARGIN-RIGHT: 0px"> <DIV dir=ltr style="MARGIN-RIGHT: 0px"><SPAN class=028073105-28072011><FONT face=Arial size=2>#include <stdlib.h><BR>#include <glib.h><BR>#include <gst/gst.h><BR>#include <gst/app/gstappsink.h><BR>#include <gst/app/gstappsrc.h><BR>#include <gst/app/gstappbuffer.h></FONT></SPAN></DIV> <DIV dir=ltr style="MARGIN-RIGHT: 0px"> </DIV><SPAN class=028073105-28072011> <DIV dir=ltr style="MARGIN-RIGHT: 0px"><BR><FONT face=Arial size=2>int main(void)<BR>{ </FONT></DIV> <DIV dir=ltr style="MARGIN-RIGHT: 0px"><FONT face=Arial size=2></FONT> </DIV> <DIV dir=ltr style="MARGIN-RIGHT: 0px"><FONT face=Arial size=2>  const int width=704;<BR>  const int height=480;<BR>  const int numFrames=50;<BR>  const int layers=3;</FONT></DIV> <DIV dir=ltr style="MARGIN-RIGHT: 0px"><FONT face=Arial size=2></FONT> </DIV> <DIV dir=ltr style="MARGIN-RIGHT: 0px"><FONT face=Arial size=2>  char *fullPipelineDesc = "appsrc name=\"adsssrc\" caps=\"video/x-raw-rgb,width=704,height=480,framerate=(fraction)25/1\" ! ffmpegcolorspace ! video/x-raw-yuv<SPAN class=028073105-28072011> </SPAN>! ffenc_mpeg2video ! mpegtsmux ! filesink location=processed.mpg ";<BR>  GstElement *writePipeline;<BR>  GError     *error     = NULL;<BR>  GstAppSrc *appsrc    = NULL;<BR>  GstBuffer *app_buffer;<BR>  unsigned char *outByte;<BR>  unsigned char *outBuff;<BR>  int outBuffSize = width * height * layers;<BR>  int count=0;</FONT></DIV> <DIV dir=ltr style="MARGIN-RIGHT: 0px"><FONT face=Arial size=2></FONT> </DIV> <DIV dir=ltr style="MARGIN-RIGHT: 0px"><FONT face=Arial size=2>  outBuff = calloc(outBuffSize, sizeof(unsigned char));</FONT></DIV> <DIV dir=ltr style="MARGIN-RIGHT: 0px"><FONT face=Arial size=2></FONT> </DIV> <DIV dir=ltr style="MARGIN-RIGHT: 0px"><BR><FONT face=Arial size=2>  gst_init(NULL, NULL);<BR>  gst_debug_set_default_threshold(GST_LEVEL_INFO);</FONT></DIV> <DIV dir=ltr style="MARGIN-RIGHT: 0px"><FONT face=Arial size=2></FONT> </DIV> <DIV dir=ltr style="MARGIN-RIGHT: 0px"><FONT face=Arial size=2>  writePipeline = gst_parse_bin_from_description(fullPipelineDesc, FALSE, &error);<BR>  appsrc = (GstAppSrc *) gst_bin_get_by_name(GST_BIN(writePipeline), "adsssrc");<BR>  gst_element_set_state(writePipeline, GST_STATE_PLAYING);</FONT></DIV> <DIV dir=ltr style="MARGIN-RIGHT: 0px"><FONT face=Arial size=2></FONT> </DIV> <DIV dir=ltr style="MARGIN-RIGHT: 0px"><FONT face=Arial size=2>  /******** WRITE SOME RGB DATA INTO A BUFFER *******/<BR>  for (int frame=0; frame<numFrames; frame++)<BR>  {<BR>     count = 0;<BR>     for (int row=0; row<height; row++)<BR>     {<BR>        for (int plane=0; plane<layers; plane++)<BR> {</FONT></DIV> <DIV dir=ltr style="MARGIN-RIGHT: 0px"><FONT face=Arial size=2></FONT> </DIV> <DIV dir=ltr style="MARGIN-RIGHT: 0px"><FONT face=Arial size=2>   for (int pixel=0; pixel<width; pixel++)<BR>   {<BR> fflush(stdout);<BR>      outByte  = outBuff;<BR>      outByte += (row*width*layers) + (pixel*layers) + plane;</FONT></DIV> <DIV dir=ltr style="MARGIN-RIGHT: 0px"><FONT face=Arial size=2></FONT> </DIV> <DIV dir=ltr style="MARGIN-RIGHT: 0px"><FONT face=Arial size=2>      if (row%2)<BR>        *outByte = 255;<BR>      else<BR>        *outByte = 0;</FONT></DIV> <DIV dir=ltr style="MARGIN-RIGHT: 0px"><FONT face=Arial size=2></FONT> </DIV> <DIV dir=ltr style="MARGIN-RIGHT: 0px"><FONT face=Arial size=2>          }<BR>        }<BR>      }<BR>      app_buffer = gst_app_buffer_new(outBuff, outBuffSize, <BR>                                  g_free, outBuff);</FONT></DIV> <DIV dir=ltr style="MARGIN-RIGHT: 0px"><FONT face=Arial size=2></FONT> </DIV> <DIV dir=ltr style="MARGIN-RIGHT: 0px"><FONT face=Arial size=2>      /* Write the buffer to the source pad */<BR>      gst_app_src_push_buffer(GST_APP_SRC(appsrc), app_buffer);<BR>  }</FONT></DIV> <DIV dir=ltr style="MARGIN-RIGHT: 0px"><FONT face=Arial size=2></FONT> </DIV> <DIV dir=ltr style="MARGIN-RIGHT: 0px"><FONT face=Arial size=2>  gst_app_src_end_of_stream(appsrc);</FONT></DIV> <DIV dir=ltr style="MARGIN-RIGHT: 0px"><FONT face=Arial size=2></FONT> </DIV> <DIV dir=ltr style="MARGIN-RIGHT: 0px"><FONT face=Arial size=2>  free(outBuff);</FONT></DIV> <DIV dir=ltr style="MARGIN-RIGHT: 0px"><FONT face=Arial size=2></FONT> </DIV> <DIV dir=ltr style="MARGIN-RIGHT: 0px"><FONT face=Arial size=2>  return 0;<BR>}</FONT></SPAN></DIV></BLOCKQUOTE> <DIV><FONT face=Arial size=2></FONT> </DIV> <DIV><FONT face=Arial size=2></FONT> </DIV> <DIV><FONT face=Arial size=2><SPAN class=028073105-28072011></SPAN></FONT> </DIV> <DIV><FONT face=Arial size=2></FONT> </DIV> <P><FONT face="microsoft sans serif" color=red size=2><B>IMPORTANT</B>: This email remains the property of the Department of Defence and is subject to the jurisdiction of section 70 of the Crimes Act 1914. If you have received this email in error, you are requested to contact the sender and delete the email. <BR></FONT><FONT face="microsoft sans serif" color=black size=2></FONT></P></BODY></HTML>