android - Overlaying a bitmap on the frame using Mediacodec and OpenGL-es -

i have successfuly decoded video , encoded again based on https://android.googlesource.com/platform/cts/+/jb-mr2-release/tests/tests/media/src/android/media/cts/decodeeditencodetest.java uses texturerenderer based on https://android.googlesource.com/platform/cts/+/jb-mr2-release/tests/tests/media/src/android/media/cts/texturerender.java

now change de drawframe function overlay bitmap. tried both using glutils.textsubimage2d , glutils.textimage2d , both returns glerror=1280. newbie opengl-es, , i'd appreciate if advice me or tell me how overlay bitmap. have seen article: http://www.jayway.com/2010/12/30/opengl-es-tutorial-for-android-part-vi-textures/ guess have use created texture glutils.textsubimage2d. should change renderer framebuffer in https://github.com/google/grafika/blob/master/src/com/android/grafika/recordfboactivity.java uses gles20.gl_texture_2d instead of gles11ext.gl_texture_external_oes? me please? thanks

    public void drawframe(surfacetexture st)     {         checkglerror("ondrawframe start");         st.gettransformmatrix(mstmatrix);         gles20.glclearcolor(0.0f, 1.0f, 0.0f, 1.0f);         gles20.glclear(gles20.gldepthbufferbit | gles20.glcolorbufferbit);          // select program.         gles20.gluseprogram(mprogram);         checkglerror("gluseprogram");          // set texture.         gles20.glactivetexture(gles20.gltexture0);         gles20.glbindtexture(gles11ext.gltextureexternaloes, mtextureid);          mtrianglevertices.position(triangle_vertices_data_pos_offset);         gles20.glvertexattribpointer(mapositionhandle, 3, gles20.glfloat, false,             triangle_vertices_data_stride_bytes, mtrianglevertices);         checkglerror("glvertexattribpointer maposition");         gles20.glenablevertexattribarray(mapositionhandle);         checkglerror("glenablevertexattribarray mapositionhandle");         mtrianglevertices.position(triangle_vertices_data_uv_offset);         gles20.glvertexattribpointer(matexturehandle, 2, gles20.glfloat, false,             triangle_vertices_data_stride_bytes, mtrianglevertices);         checkglerror("glvertexattribpointer matexturehandle");          // enable "aposition" vertex attribute.         gles20.glenablevertexattribarray(matexturehandle);         checkglerror("glenablevertexattribarray matexturehandle");          android.opengl.matrix.setidentitym(mmvpmatrix, 0);         // copy model / view / projection matrix over.         gles20.gluniformmatrix4fv(mumvpmatrixhandle, 1, false, mmvpmatrix, 0);         gles20.gluniformmatrix4fv(mustmatrixhandle, 1, false, mstmatrix, 0);          // draw rect.         gles20.gldrawarrays(gles20.gltrianglestrip, 0, 4);         checkglerror("gldrawarrays");          glutils.texsubimage2d(gles11ext.gltextureexternaloes, 0, 0, 0, bitmap, gles20.glrgb, gles20.glunsignedbyte);         //glutils.teximage2d(gles11ext.gltextureexternaloes, 0, bitmap, 0);         checkglerror("texsubimage2d");            gles20.glfinish();     }