Hi ,<div><br></div><div>I Tried the suggestion provided for the by Cai. Thanks for the code Cai.</div><div><br></div><div>It works something like this It only allows to playback the 22KHz S16LE audio.</div><div><br></div><div> What I was trying is to convert the any input format into a 22KHz S16LE so I can mux it with other stream of the same property and mux multiple streams using alsasink plug:dmix.</div><div><div><br></div><div><br></div><div> With Warm Regards<br>Jesu Anuroop Suresh <br><br>"Any intelligent fool can make things bigger, more complex, and more violent. It takes a touch of genius -- and a lot of courage -- to move in the opposite direction."<br> "Anyone who has never made a mistake has never tried anything new."<br><br><br><br><br> <br><br><div class="gmail_quote">On Thu, Jan 13, 2011 at 9:51 AM, Jesu Anuroop Suresh <span dir="ltr"><<a href="mailto:jesuas@gmail.com">jesuas@gmail.com</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex;"> <div class="im"> Hi Cai,<div><br></div><div><br></div><div>Thanks for you response, I Will try out your suggestion of using the filtered link.</div><div><br></div><div>Sorry there was some typoerror in my code what I shared. </div><div><br> </div><div>I did initialized the 'resmux' as capasity filter and used the conv not conv1.</div><div><br></div><div>The cocde works for me for mp3 playback in its original settings.</div><div><br></div><div><br></div> </div><div class="im"><div> resample = gst_element_factory_make ("audioresample", "audio-resample");</div></div><div><div class="im"><div> conv = gst_element_factory_make ("audioconvert", "converter1");</div> </div><div class="im"><div><font color="#FF0000"><span style="white-space:pre-wrap"> </span>resmux = gst_element_factory_make ("capsfilter", "filter");</font></div><div><br></div> </div><div class="im"><div> caps = gst_caps_new_simple ("audio/x-raw-int",</div><div> "width", G_TYPE_INT, 16,</div><div> "depth", G_TYPE_INT, 16,</div> <div> "rate", G_TYPE_INT, 22050,</div><div> "channels",G_TYPE_INT, 2, NULL</div><div> );</div> <div><br></div><div> if (!musicPlayer.playPipeline || !source || !sink ||</div><div> !resample || !resmux || !caps || !conv)</div><div> {</div><div> g_print ("NO MEM Exiting.\n");</div> <div> return 1;</div><div> }</div><div><br></div></div><div class="im"><div> /* we set the input filename to the source element */</div><div> g_object_set (G_OBJECT (source), "location", filePath, NULL);</div> <div><br></div><div> demuxer = gst_element_factory_make ("id3demux", "id3-demuxer");</div><div> decoder = gst_element_factory_make ("mad", "mp3-decoder");</div><div> <br></div></div><div><font color="#FF0000"> if (!demuxer || !decoder || !conv)</font></div><div class="im"><div> {</div><div> g_print ("NO MEM Exiting.\n");</div><div> return 1;</div> <div> }</div><div><br></div></div></div><div class="im"><div><span style="font-family:arial, sans-serif;font-size:13px;border-collapse:collapse;color:rgb(80, 0, 80)">With Warm Regards<br>Jesu Anuroop Suresh<br> <br>"Any intelligent fool can make things bigger, more complex, and more violent. It takes a touch of genius -- and a lot of courage -- to move in the opposite direction."<br>"Anyone who has never made a mistake has never tried anything new."<br> </span></div><div><span style="font-family:arial, sans-serif;font-size:13px;border-collapse:collapse;color:rgb(80, 0, 80)"><br></span></div></div><div><div></div><div class="h5"><div><div class="gmail_quote">On Thu, Jan 13, 2011 at 7:16 AM, Cai Yuanqing [via GStreamer-devel] <span dir="ltr"><<a href="http://user/SendEmail.jtp?type=node&node=3215225&i=0" rel="nofollow" target="_blank">[hidden email]</a>></span> wrote:<br> <blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"> Hi Suresh: <br> Your application have a little problem. :-) <br><div><div></div><div><br><br>On 01/12/2011 08:41 PM, Jesu Anuroop Suresh wrote: </div></div><div><div><div></div><div><div><div><br>> Hi Sean, <br>> <br>> Yes, what I was trying is to resample the decoded mp3 data to the <br>> fixed (22KHZ S16LE) formate, <br>> <br>> no matter what is the input rate using a C application. <br>> <br>> Thanks for your response. <br>> <br>> Here is the piece of the code for the same but it does not work with <br>> audioresample with the caps filter 'resmux'. This code does work <br>> without the caps filter 'resmux'. <br>> <br>> GstElement *source, *demuxer, *decoder, *conv, *sink, <br>> *resample, *resmux; <br>> GstCaps *caps; <br>> <br>> gst_init(NULL, NULL); <br>> <br>> /* Create gstreamer elements */ <br>> musicPlayer.playPipeline = gst_pipeline_new ("audio-player"); <br>> source = gst_element_factory_make ("filesrc", "file-source"); <br>> sink = gst_element_factory_make ("alsasink", "audio-output"); <br>> resample = gst_element_factory_make ("audioresample", <br>> "audio-resample"); <br>> conv = gst_element_factory_make ("audioconvert", <br>> "converter1"); <br>> <br>> caps = gst_caps_new_simple ("audio/x-raw-int", <br>> "width", G_TYPE_INT, 16, <br>> "depth", G_TYPE_INT, 16, <br>> "rate", G_TYPE_INT, 22050, <br>> "channels",G_TYPE_INT, 2, NULL <br>> ); <br>> <br>> if (!musicPlayer.playPipeline || !source || !sink || <br>> !resample || !resmux || !caps || !conv) <br>> { <br>> g_print ("NO MEM Exiting.\n"); <br>> return 1; <br>> } </div></div></div>resmux is not initialized yet,here maybe some random value,you'd better </div>remove it from check list. </div><div><br>> <br>> /* we set the input filename to the source element */ <br>> g_object_set (G_OBJECT (source), "location", filePath, NULL); <br>> <br>> demuxer = gst_element_factory_make ("id3demux", "id3-demuxer"); <br>> decoder = gst_element_factory_make ("mad", "mp3-decoder"); <br>> <br>> if (!demuxer || !decoder || !conv1) <br></div>conv1 ? dose it should be conv? <br><div><br>> { <br>> g_print ("NO MEM Exiting.\n"); <br>> return 1; <br>> } <br>> <br></div><div>> g_object_set (G_OBJECT (resmux), "caps", caps, NULL); <br>> gst_caps_unref (caps); <br>> <br></div>as I said before,resmux haven't initialized ,that's not quite right. <br>and I suggest you to remove these two lines. <br><div><br>> /* file-source -> demuxer -> decoder -> alsa-output */ <br>> gst_bin_add_many (GST_BIN (musicPlayer.playPipeline), <br>> source, demuxer, decoder, conv, resample, <br>> resmux,sink, NULL); <br>> <br>> gst_element_link (source, demuxer); <br>> gst_element_link_many (decoder, conv, resample,resmux,sink, NULL); <br></div>You can use gst_element_link_filtered to link resample and sink with <br>caps instead of this way. <br>something like: <br><div> gst_element_link (source, demuxer); <br></div> gst_element_link_many (decoder, conv, resample, NULL); <br> if ( !gst_element_link_filtered(resample,sink,caps) ){ <br> g_printerr("Failed to link elements resample and alsa-sink"); <br> } <br><br><div><div><div><div><br>> g_signal_connect (demuxer, "pad-added", G_CALLBACK <br>> (on_pad_added), decoder); <br>> <br>> GstBus *bus = <br>> gst_pipeline_get_bus(GST_PIPELINE(musicPlayer.playPipeline)); <br>> gst_bus_add_watch(bus, bus_call, NULL); <br>> gst_object_unref(bus); <br>> <br>> gst_element_set_state(GST_ELEMENT(musicPlayer.playPipeline), <br>> GST_STATE_PLAYING); <br>> <br>> musicPlayer.playLoop = g_main_loop_new(NULL, FALSE); <br>> <br>> g_main_loop_run(musicPlayer.playLoop); <br>> <br>> gst_element_set_state(GST_ELEMENT(musicPlayer.playPipeline), <br>> GST_STATE_NULL); <br>> gst_object_unref(GST_OBJECT(musicPlayer.playPipeline)); <br>> <br>> <br>> <br>> <br>> With Warm Regards <br>> Jesu Anuroop Suresh <br>> <br>> "Any intelligent fool can make things bigger, more complex, and more <br>> violent. It takes a touch of genius -- and a lot of courage -- to move <br>> in the opposite direction." <br>> "Anyone who has never made a mistake has never tried anything new." <br>> <br>> </div></div>I attached my modified source code ,you can try it. </div>Hope it helps. </div><br>Thanks. <br><br><br>-- <br>B.R <br><br>Cai Yuanqing <br><br><br>------------------------------------------------------------------------------ <br><div>Protect Your Site and Customers from Malware Attacks <br>Learn about various malware tactics and how to avoid them. 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