<div dir="ltr"><pre class="gmail-bz_comment_text" id="gmail-comment_text_0" style="font-size:medium;white-space:pre-wrap;width:50em;color:rgb(0,0,0)">Hello, I am trying to compile the gst-omx example "testegl.c" on a board that has an arm64 architecture and uses a customized Linux distribution.</pre><pre class="gmail-bz_comment_text" id="gmail-comment_text_0" style="font-size:medium;white-space:pre-wrap;width:50em;color:rgb(0,0,0)">I am using my own command line and not the build systems provided by gst-omx At first, when I launched the below gcc command $gcc -Wall testegl.c -o testegl $(pkg-config --cflags --libs gstreamer-1.0) -lm <br></pre><pre class="gmail-bz_comment_text" id="gmail-comment_text_0" style="font-size:medium;white-space:pre-wrap;width:50em;color:rgb(0,0,0)">I got this:</pre><pre class="gmail-bz_comment_text" id="gmail-comment_text_0" style="font-size:medium;white-space:pre-wrap;width:50em;color:rgb(0,0,0)">testegl.o: In function `init_ogl': testegl.c:(.text+0x7d4): undefined reference to `eglGetDisplay' testegl.c:(.text+0x828): undefined reference to `eglInitialize' testegl.c:(.text+0x88c): undefined reference to `eglChooseConfig' testegl.c:(.text+0x8b4): undefined reference to `eglCreateContext' testegl.c:(.text+0x90c): undefined reference to `eglCreateWindowSurface' testegl.c:(.text+0x978): undefined reference to `eglMakeCurrent' testegl.c:(.text+0x9b8): undefined reference to `gst_gl_display_egl_new_with_egl_display' testegl.c:(.text+0x9d0): undefined reference to `gst_gl_display_get_type' testegl.c:(.text+0x9fc): undefined reference to `gst_gl_context_new_wrapped' testegl.o: In function `init_model_proj': testegl.c:(.text+0xa30): undefined reference to `glCreateShader' testegl.c:(.text+0xa64): undefined reference to `glShaderSource' testegl.c:(.text+0xa70): undefined reference to `glCompileShader' testegl.c:(.text+0xa74): undefined reference to `glGetError' testegl.c:(.text+0xaa8): undefined reference to `glCreateShader' testegl.c:(.text+0xadc): undefined reference to `glShaderSource' testegl.c:(.text+0xae8): undefined reference to `glCompileShader' testegl.c:(.text+0xaec): undefined reference to `glGetError' testegl.c:(.text+0xb1c): undefined reference to `glCreateProgram' testegl.c:(.text+0xb48): undefined reference to `glAttachShader' testegl.c:(.text+0xb68): undefined reference to `glAttachShader' testegl.c:(.text+0xb8c): undefined reference to `glBindAttribLocation' testegl.c:(.text+0xbb0): undefined reference to `glBindAttribLocation' testegl.c:(.text+0xbbc): undefined reference to `glLinkProgram' testegl.c:(.text+0xbdc): undefined reference to `glGetProgramiv' testegl.c:(.text+0xc18): undefined reference to `glUseProgram' testegl.c:(.text+0xc38): undefined reference to `glGetUniformLocation' testegl.c:(.text+0xc64): undefined reference to `glGetUniformLocation' testegl.c:(.text+0xc90): undefined reference to `glGetUniformLocation' testegl.c:(.text+0xcbc): undefined reference to `glGetUniformLocation' testegl.c:(.text+0xce8): undefined reference to `glGetUniformLocation' testegl.o:testegl.c:(.text+0xd14): more undefined references to `glGetUniformLocation' follow testegl.o: In function `init_model_proj': testegl.c:(.text+0xd48): undefined reference to `glViewport' testegl.o: In function `redraw_scene': testegl.c:(.text+0xf6c): undefined reference to `glBindFramebuffer' testegl.c:(.text+0xf74): undefined reference to `glEnable' testegl.c:(.text+0xf7c): undefined reference to `glEnable' testegl.c:(.text+0xf94): undefined reference to `glClearColor' testegl.c:(.text+0xf9c): undefined reference to `glClear' testegl.c:(.text+0xfa8): undefined reference to `glUseProgram' testegl.c:(.text+0xfcc): undefined reference to `glVertexAttribPointer' testegl.c:(.text+0xff0): undefined reference to `glVertexAttribPointer' testegl.c:(.text+0xff8): undefined reference to `glEnableVertexAttribArray' testegl.c:(.text+0x1000): undefined reference to `glEnableVertexAttribArray' testegl.c:(.text+0x1008): undefined reference to `glActiveTexture' testegl.c:(.text+0x101c): undefined reference to `glBindTexture' testegl.c:(.text+0x102c): undefined reference to `glUniform1i' testegl.c:(.text+0x1044): undefined reference to `glUniform1f' testegl.c:(.text+0x105c): undefined reference to `glUniform1f' testegl.c:(.text+0x1074): undefined reference to `glUniform1f' testegl.c:(.text+0x1098): undefined reference to `glUniformMatrix4fv' testegl.c:(.text+0x10bc): undefined reference to `glUniformMatrix4fv' testegl.c:(.text+0x10cc): undefined reference to `glDrawArrays' testegl.c:(.text+0x10dc): undefined reference to `glDrawArrays' testegl.c:(.text+0x10ec): undefined reference to `glDrawArrays' testegl.c:(.text+0x10fc): undefined reference to `glDrawArrays' testegl.c:(.text+0x110c): undefined reference to `glDrawArrays' testegl.o:testegl.c:(.text+0x111c): more undefined references to `glDrawArrays' follow testegl.o: In function `redraw_scene': testegl.c:(.text+0x1138): undefined reference to `eglSwapBuffers' testegl.c:(.text+0x1140): undefined reference to `glDisable' testegl.c:(.text+0x1148): undefined reference to `glDisable' testegl.o: In function `init_textures': testegl.c:(.text+0x11f8): undefined reference to `gst_gl_sized_gl_format_from_gl_format_type' testegl.c:(.text+0x1210): undefined reference to `gst_buffer_get_video_meta' testegl.c:(.text+0x1230): undefined reference to `glGenTextures' testegl.c:(.text+0x1244): undefined reference to `glBindTexture' testegl.c:(.text+0x1284): undefined reference to `glTexImage2D' testegl.c:(.text+0x12c0): undefined reference to `glTexParameteri' testegl.c:(.text+0x12d0): undefined reference to `glTexParameteri' testegl.c:(.text+0x12e0): undefined reference to `glTexParameteri' testegl.c:(.text+0x12f0): undefined reference to `glTexParameteri' testegl.c:(.text+0x12f4): undefined reference to `glGetError' testegl.o: In function `update_image': testegl.c:(.text+0x13f0): undefined reference to `gst_is_gl_memory' testegl.c:(.text+0x1440): undefined reference to `gst_video_gl_texture_upload_meta_api_get_type' testegl.c:(.text+0x1494): undefined reference to `gst_video_gl_texture_upload_meta_upload' testegl.o: In function `query_cb': testegl.c:(.text+0x1d2c): undefined reference to `gst_gl_handle_context_query' testegl.o: In function `close_ogl': testegl.c:(.text+0x2b0c): undefined reference to `glDeleteShader' testegl.c:(.text+0x2b3c): undefined reference to `glDetachShader' testegl.c:(.text+0x2b68): undefined reference to `glDeleteShader' testegl.c:(.text+0x2b98): undefined reference to `glDetachShader' testegl.c:(.text+0x2bc4): undefined reference to `glDeleteProgram' testegl.c:(.text+0x2bf8): undefined reference to `glDeleteTextures' testegl.c:(.text+0x2c00): undefined reference to `glClear' testegl.c:(.text+0x2c2c): undefined reference to `eglSwapBuffers' testegl.c:(.text+0x2c4c): undefined reference to `eglMakeCurrent' testegl.c:(.text+0x2c78): undefined reference to `eglDestroySurface' testegl.c:(.text+0x2ca4): undefined reference to `eglDestroyContext' collect2: error: ld returned 1 exit status </pre><div><font face="monospace, monospace">Then I added the -lGL and -lEGL link options to the previous command (after doing some research on google) and I got this:</font></div><div><font face="monospace, monospace"><br></font></div><div><div><font face="monospace, monospace">testegl.o: In function `init_ogl':</font></div><div><font face="monospace, monospace">testegl.c:(.text+0x9b8): undefined reference to `gst_gl_display_egl_new_with_egl_display'</font></div><div><font face="monospace, monospace">testegl.c:(.text+0x9d0): undefined reference to `gst_gl_display_get_type'</font></div><div><font face="monospace, monospace">testegl.c:(.text+0x9fc): undefined reference to `gst_gl_context_new_wrapped'</font></div><div><font face="monospace, monospace">testegl.o: In function `init_textures':</font></div><div><font face="monospace, monospace">testegl.c:(.text+0x11f8): undefined reference to `gst_gl_sized_gl_format_from_gl_format_type'</font></div><div><font face="monospace, monospace">testegl.c:(.text+0x1210): undefined reference to `gst_buffer_get_video_meta'</font></div><div><font face="monospace, monospace">testegl.o: In function `update_image':</font></div><div><font face="monospace, monospace">testegl.c:(.text+0x13f0): undefined reference to `gst_is_gl_memory'</font></div><div><font face="monospace, monospace">testegl.c:(.text+0x1440): undefined reference to `gst_video_gl_texture_upload_meta_api_get_type'</font></div><div><font face="monospace, monospace">testegl.c:(.text+0x1494): undefined reference to `gst_video_gl_texture_upload_meta_upload'</font></div><div><font face="monospace, monospace">testegl.o: In function `query_cb':</font></div><div><font face="monospace, monospace">testegl.c:(.text+0x1d2c): undefined reference to `gst_gl_handle_context_query'</font></div><div><font face="monospace, monospace">collect2: error: ld returned 1 exit status</font></div></div><div><font face="monospace, monospace"><br></font></div><div><font face="monospace, monospace">Could you please help me with this issue ?</font></div><div><font face="monospace, monospace"><br></font></div><div><font face="monospace, monospace">Best regards,</font></div><div><font face="monospace, monospace">Mariem</font></div></div> <br> <pre><font face="Arial" size="2"><i>This e-mail message is intended only for the use of the intended recipient(s). The information contained therein may be confidential or privileged, and its disclosure or reproduction is strictly prohibited. If you are not the intended recipient, please return it immediately to its sender at the above address and destroy it.<span style="color:rgb(136,136,136);white-space:pre-wrap;background-color:rgb(255,255,255)"> </span></i></font></pre> <br/><hr align="left" width="300" /> View this message in context: <a href="http://gstreamer-devel.966125.n4.nabble.com/Error-while-compiling-the-gst-omx-example-tp4683206.html">Error while compiling the gst-omx example</a><br/> Sent from the <a href="http://gstreamer-devel.966125.n4.nabble.com/">GStreamer-devel mailing list archive</a> at Nabble.com.<br/>