appsrc undefined reference to 'gst_app_buffer_new'
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Hello,
I am trying to use appsrc to get data from my C application and met following problems. 1.undefined reference to `gst_app_buffer_new' 2. undefined reference to `gst_app_src_push_buffer' 3.undefined reference to gst_app_src_end_of_stream After searching for a solution, I saw someone suggest add -lgstapp-0.10 into the make file: Following is the commands in the make file. export PKG_CONFIG_PATH=/root/targetfs/opt/gstreame/lib/pkgconfig:$PKG_CONFIG_PATH /root/CodeSourcery/Sourcery_G++_Lite//bin/arm-none-linux-gnueabi-gcc -lgstapp-0.10 `pkg-config --cflags --libs gstreamer-0.10`-o syn test_syn.c And then I have following compile errors. However, i did check and found that the missing libgstbase-0.10.so.0 is in the same place with libgstapp-0.10.so. Any suggestions? /root/CodeSourcery/Sourcery_G++_Lite/bin/../lib/gcc/arm-none-linux-gnueabi/4.3.3/../../../../arm-none-linux-gnueabi/bin/ld: warning: libgstbase-0.10.so.0, needed by /root/targetfs///opt/gstreamer/lib/libgstapp-0.10.so, not found (try using -rpath or -rpath-link) /root/targetfs///opt/gstreamer/lib/libgstapp-0.10.so: undefined reference to `gst_base_sink_wait_preroll' /root/targetfs///opt/gstreamer/lib/libgstapp-0.10.so: undefined reference to `gst_base_src_set_live' /root/targetfs///opt/gstreamer/lib/libgstapp-0.10.so: undefined reference to `gst_base_src_get_type' /root/targetfs///opt/gstreamer/lib/libgstapp-0.10.so: undefined reference to `gst_base_src_query_latency' /root/targetfs///opt/gstreamer/lib/libgstapp-0.10.so: undefined reference to `gst_base_src_set_format' /root/targetfs///opt/gstreamer/lib/libgstapp-0.10.so: undefined reference to `gst_base_src_is_live' /root/targetfs///opt/gstreamer/lib/libgstapp-0.10.so: undefined reference to `gst_base_sink_get_type' Thanks, Jun _______________________________________________ gstreamer-devel mailing list [hidden email] http://lists.freedesktop.org/mailman/listinfo/gstreamer-devel |
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Folllowing is my test codes. It runs ok with out gst_app_buffer_new and gst_app_buffer_push.
Any advice? Thanks, Jun #include <gst/gst.h> #include <glib.h> #include <unistd.h> #include <stdlib.h> #include <pthread.h> #include <gst/app/gstappsrc.h> #include <gst/app/gstappbuffer.h> #include <gst/base/gstbasesrc.h> #include <gst/gstbuffer.h> #include <string.h> #include <gst/app/gstappsink.h> #include <stdio.h> static const guint8 mp3[] = { 0x01, 0x02, 0x03, 0x04, 0x05, 0x06,0x07, 0x08, 0x09, 0x10, 0x11, 0x12, 0x13, 0x14, 0x15, 0x16, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06,0x07, 0x08, 0x09, 0x10, 0x11, 0x12, 0x13, 0x14, 0x15, 0x16, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06,0x07, 0x08, 0x09, 0x10, 0x11, 0x12, 0x13, 0x14, 0x15, 0x16, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06,0x07, 0x08, 0x09, 0x10, 0x11, 0x12, 0x13, 0x14, 0x15, 0x16, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06,0x07, 0x08, 0x09, 0x10, 0x11, 0x12, 0x13, 0x14, 0x15, 0x16, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06,0x07, 0x08, 0x09, 0x10, 0x11, 0x12, 0x13, 0x14, 0x15, 0x16, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06,0x07, 0x08, 0x09, 0x10, 0x11, 0x12, 0x13, 0x14, 0x15, 0x16, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06,0x07, 0x08, 0x09, 0x10, 0x11, 0x12, 0x13, 0x14, 0x15, 0x16, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06,0x07, 0x08, 0x09, 0x10, 0x11, 0x12, 0x13, 0x14, 0x15, 0x16, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06,0x07, 0x08, 0x09, 0x10, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF}; typedef struct _App App; struct _App { GstElement *appsrc; GstElement *h264parse; GstElement *gstperf; GstElement *queue1; GstElement *rtph264pay; GstElement *filesink; GstElement *queue; GstElement *pipeline; GMainLoop *loop; guint length; guint64 offset; }; App s_app; guint frame_num=sizeof(mp3); static void FIFOwrite_data (App* app) { guint8 framesize; guint8 *tmpdata=malloc(1); *tmpdata=0; guint frame_count1=0; gst_element_set_state(app->pipeline, GST_STATE_PLAYING); GstFlowReturn ret; g_print("into FIFO write \n"); while(1){ GstBuffer *buffer; g_print("===================start================================ \n"); framesize=1; buffer = gst_app_buffer_new (tmpdata, framesize, g_free, tmpdata); // buffer = gst_buffer_new_and_alloc (framesize); *tmpdata=mp3[frame_count1]; memcpy(GST_BUFFER_DATA(buffer),tmpdata,framesize); // buffer=malloc(framesize); // gst_buffer_set_data(buffer,tmpdata, framesize); g_signal_emit_by_name (app->appsrc, "push-buffer", buffer, &ret); if(ret != GST_FLOW_OK){ g_print("error%x \n"); return; } g_print("print data info in buffer 0x%x \n",*GST_BUFFER_DATA(buffer)); g_print("framenum %d \n", frame_count1); frame_count1=frame_count1+1; g_print("=================end=================================== \n"); if ( frame_count1 >= frame_num-1) { //gst_app_src_end_of_stream(app->appsrc); g_signal_emit_by_name (app->appsrc, "end-of-stream", &ret); g_print("this is the last frame \n"); gst_buffer_unref (buffer); pthread_exit(NULL); } } g_print("go out \n"); } static gboolean bus_call (GstBus *bus, GstMessage *msg, gpointer data) { GMainLoop *loop = data; switch (GST_MESSAGE_TYPE (msg)) { case GST_MESSAGE_EOS: g_print ("End-of-stream\n"); g_main_loop_quit (loop); break; case GST_MESSAGE_ERROR: { gchar *debug = NULL; GError *err = NULL; gst_message_parse_error (msg, &err, &debug); g_print ("Error: %s\n", err->message); g_error_free (err); if (debug) { g_print ("Debug details: %s\n", debug); g_free (debug); } g_main_loop_quit (loop); break; } default: break; } return TRUE; } int main(){ gst_init(NULL,NULL); App *app=&s_app; GstBus* bus; GstStateChangeReturn ret; g_print (" Gstreamer Init completed \n "); app->appsrc = gst_element_factory_make("appsrc", "appsrc"); g_assert(app->appsrc); app->filesink = gst_element_factory_make("filesink", "filesink"); g_assert(app->filesink); app->queue = gst_element_factory_make("queue", "queue"); g_assert(app->queue); app->pipeline = gst_pipeline_new("server"); app->loop = g_main_loop_new(NULL, FALSE); pthread_t write_thread; g_object_set(G_OBJECT(app->filesink), "location", "appsyn0.data", NULL); g_object_set(G_OBJECT(app->appsrc),"max-bytes",0,NULL); //g_object_set(G_OBJECT(app->appsrc), "is-live",TRUE,"max-bytes",0,NULL); bus = gst_pipeline_get_bus (GST_PIPELINE (app->pipeline)); gst_bus_add_watch (bus, bus_call, app->loop); gst_object_unref(bus); gst_bin_add_many(GST_BIN(app->pipeline),app->appsrc,app->queue,app->filesink,NULL); if (!gst_element_link_many (app->appsrc,app->queue,app->filesink, NULL)) { g_print ("Failed to link one or more elements! \n"); return -1; } g_print("Gst-Pipeline is Running.........\n"); pthread_create(&write_thread, NULL,FIFOwrite_data, app); // ret=gst_element_set_state(app->pipeline, GST_STATE_PLAYING); if (ret == GST_STATE_CHANGE_FAILURE) { GstMessage *msg; g_print ("Failed to start up pipeline! \n"); /* check if there is an error message with details on the bus */ msg = gst_bus_poll (bus, GST_MESSAGE_ERROR, 0); if (msg) { GError *err = NULL; gst_message_parse_error (msg, &err, NULL); g_print ("ERROR: %s\n", err->message); g_error_free (err); gst_message_unref (msg); } return -1; //pthread_exit (NULL); } g_main_loop_run(app->loop); /* Out of the main loop, clean up nicely */ g_print("Returned, stopping playback\n"); gst_element_set_state(app->pipeline, GST_STATE_NULL); g_print("Deleting pipeline\n"); gst_object_unref(GST_OBJECT(app->pipeline)); pthread_join(write_thread, NULL); return 0; } |
Re: appsrc undefined reference to 'gst_app_buffer_new'
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In reply to this post by Nathan
Il 08/12/2011 21:11, Jun Zhang ha scritto:
Hello, try lo link to gstreamer-app-0.10 too, Nicola
_______________________________________________ gstreamer-devel mailing list [hidden email] http://lists.freedesktop.org/mailman/listinfo/gstreamer-devel |
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Cool! It works right now.
However, I had another issue. I just try to let appsrc keep reading data from a array and then write data into file. My pipleline is like appsrc->queue->filesink. However, I cannot get right data in the file, actually there is no data in the file but a bunch of symbols. I attached my codes here. Anyone met this problem before or know why? #include <gst/gst.h> #include <stdio.h> #include <string.h> #include <stdlib.h> #include <gst/app/gstappsrc.h> #include <gst/app/gstappbuffer.h> #include <gst/app/gstappsink.h> static const guint8 mp3[] = { 0x01, 0x02, 0x03, 0x04, 0x05, 0x06,0x07, 0x08, 0x09, 0x10, 0x11, 0x12, 0x13, 0x14, 0x15, 0x16, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06,0x07, 0x08, 0x09, 0x10, 0x11, 0x12, 0x13, 0x14, 0x15, 0x16, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06,0x07, 0x08, 0x09, 0x10, 0x11, 0x12, 0x13, 0x14, 0x15, 0x16, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06,0x07, 0x08, 0x09, 0x10, 0x11, 0x12, 0x13, 0x14, 0x15, 0x16, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06,0x07, 0x08, 0x09, 0x10, 0x11, 0x12, 0x13, 0x14, 0x15, 0x16, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06,0x07, 0x08, 0x09, 0x10, 0x11, 0x12, 0x13, 0x14, 0x15, 0x16, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06,0x07, 0x08, 0x09, 0x10, 0x11, 0x12, 0x13, 0x14, 0x15, 0x16, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06,0x07, 0x08, 0x09, 0x10, 0x11, 0x12, 0x13, 0x14, 0x15, 0x16, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06,0x07, 0x08, 0x09, 0x10, 0x11, 0x12, 0x13, 0x14, 0x15, 0x16, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06,0x07, 0x08, 0x09, 0x10, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF}; typedef struct _App App; struct _App { GstElement *pipe; GstElement *src; GstElement *q; GstElement *id; GstElement *q1; GstElement *sink; }; App s_app; static void finalize (void *priv); int main (int argc, char *argv[]) { FILE *fp; size_t bytes_read; App *app = &s_app; int i; int mp3size; gst_init (&argc, &argv); app->pipe = gst_pipeline_new (NULL); g_assert (app->pipe); app->src = gst_element_factory_make ("appsrc", NULL); g_assert (app->src); gst_bin_add (GST_BIN (app->pipe), app->src); app->q = gst_element_factory_make ("queue", NULL); g_assert (app->q); gst_bin_add (GST_BIN (app->pipe), app->q); /* app->id = gst_element_factory_make ("identity", NULL); g_assert (app->id); gst_bin_add (GST_BIN (app->pipe), app->id); app->q1 = gst_element_factory_make ("queue", NULL); g_assert (app->q1); gst_bin_add (GST_BIN (app->pipe), app->q1); */ app->sink = gst_element_factory_make ("filesink", NULL); g_object_set (G_OBJECT (app->sink), "location", "mp3.data", NULL); g_assert (app->sink); gst_bin_add (GST_BIN (app->pipe), app->sink); gst_element_link (app->src, app->q); //gst_element_link (app->q, app->id); // gst_element_link (app->id, app->q1); gst_element_link (app->q, app->sink); printf("Setting PIPELINE to PLAY.......\n"); gst_element_set_state (app->pipe, GST_STATE_PLAYING); mp3size=sizeof(mp3); for (i = 0; i < mp3size-1; i++) { GstBuffer *buf; guint8 *data=malloc(1); *data=mp3[i]; buf = gst_app_buffer_new (data, 1, finalize, data); gst_app_src_push_buffer (GST_APP_SRC (app->src), buf); printf("framenum %d\n", (i+1)); printf("framenum data %d\n",*GST_BUFFER_DATA(buf)); } gst_app_src_end_of_stream (GST_APP_SRC (app->src)); gst_element_set_state (app->pipe, GST_STATE_NULL); //g_object_unref (buf); //free(data); return 0; } static void finalize (void *priv) { //printf ("\nfreeing buffer for pointer %p\n", priv); //free (priv); } //================= On Fri, Dec 9, 2011 at 5:47 AM, Mailing List SVR [via GStreamer-devel] <[hidden email]> wrote:
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