I refered to ContinuousCaptureActivity of grafika to implement a demo which records video with MediaCodec. The demo worked fine in most cases, but crashed on my GT-I9500 device when back key pressed ( this crash is undetectable because we just assumed activity destroyed, I used 'adb shell ps' to check the existence of the demo process ). Then I checked my source code repeatedly, found my code almost the same with ContinuousCaptureActivity of grafika. So I did the following things:
I installed apk of grafika in my GT-I9500 device and launched the ContinuousCaptureActivity, then I pressed the back key of my phone, but the application did not crash, it turned out that grafika worked fine.
I checked my code again and found nothing suspicious.
I created a new android project and copyed ContinuousCaptureActivity.java and other necessary files such as AndroidManifest.xml, activity_continuous_capture.xml an so on from grafika to the new project. I modified the AndroidManifest.xml to make the ContinuousCaptureActivity the main activity. I compiled the code and installed the apk on my GT-I9500 device. The same thing happened, the application crashed after I pressed the back key!!!
I am really confused with this problem, why did grafika work fine but the same code in a new project just crashed? Anyhow I believe there is a solution to the crash of my demo because grafika just worked fine. Could anybody give me some advices?
Information that I can offer is as follows:
I debuged the application and found the exact code which caused the crash, the code is https://github.com/google/grafika/blob/master/src/com/android/grafika/gles/EglCore.java#L191
The crash was very strage, there was no tombstone file generated and adb log is limited:
06-15 14:39:33.853 I/ActivityManager( 771): Process com.example.grafikaaa (pid 13138) (adj 1) has died.
06-15 14:39:33.853 W/ActivityManager( 771): Force removing ActivityRecord{42a876c8 u0 com.example.grafikaaa/.ContinuousCaptureActivity}: app died, no saved state .... ....
06-15 14:39:33.903 D/Zygote ( 209): Process 13138 terminated by signal (11)
- Information of my device showed by GlesInfoActivity of grafika is as follows:
===== GL Information ===== vendor : Qualcomm version : OpenGL ES 3.0 [email protected] AU@ (CL@4169980) renderer : Adreno (TM) 320 extensions: GL_AMD_compressed_ATC_texture GL_AMD_performance_monitor GL_AMD_program_binary_Z400 GL_EXT_color_buffer_float GL_EXT_color_buffer_half_float GL_EXT_debug_label GL_EXT_debug_marker GL_EXT_discard_framebuffer GL_EXT_disjoint_timer_query GL_EXT_robustness GL_EXT_sRGB GL_EXT_texture_filter_anisotropic GL_EXT_texture_format_BGRA8888 GL_EXT_texture_type_2_10_10_10_REV GL_NV_fence GL_OES_EGL_image GL_OES_EGL_image_external GL_OES_compressed_ETC1_RGB8_texture GL_OES_depth24 GL_OES_depth_texture GL_OES_depth_texture_cube_map GL_OES_element_index_uint GL_OES_fbo_render_mipmap GL_OES_fragment_precision_high GL_OES_get_program_binary GL_OES_packed_depth_stencil GL_OES_rgb8_rgba8 GL_OES_standard_derivatives GL_OES_texture_3D GL_OES_texture_float GL_OES_texture_half_float GL_OES_texture_half_float_linear GL_OES_texture_npot GL_OES_vertex_array_object GL_OES_vertex_half_float GL_OES_vertex_type_10_10_10_2 GL_QCOM_alpha_test GL_QCOM_binning_control GL_QCOM_driver_control GL_QCOM_extended_get GL_QCOM_extended_get2 GL_QCOM_perfmon_global_mode GL_QCOM_tiled_rendering GL_QCOM_writeonly_rendering ===== EGL Information ===== vendor : Android version : 1.4 Android META-EGL client API: OpenGL_ES extensions: EGL_ANDROID_image_native_buffer EGL_EXT_create_context_robustness EGL_KHR_create_context EGL_KHR_fence_sync EGL_KHR_gl_renderbuffer_image EGL_KHR_gl_texture_2D_image EGL_KHR_gl_texture_cubemap_image EGL_KHR_image EGL_KHR_image_base EGL_KHR_lock_surface EGL_KHR_wait_sync ===== System Information ===== mfgr : samsung brand : samsung model : GT-I9500 release : 4.3 build : JSS15J.I9500ZSUEMJ6