[mythtv-users] Playback problems in iPlayer HD playback

John Reid johnbaronreid at netscape.net
Tue Jul 19 14:23:19 UTC 2011


On 19/07/11 13:04, Raymond Wagner wrote:
> On Tue, 19 Jul 2011 09:12:55 +0100, John Reid<johnbaronreid at netscape.net>
> wrote:
>> When I'm viewing standard iPlayer content in the browser, top reports
>> about 70% CPU usage. For HD content it reports about 150%. Does this
>> mean I'm not using the Intel integrated on-board graphics?
> Prior to 0.25, MythTV does not use the onboard video decoding on Intel
> hardware. However, the chip in your processor does have sufficient power to
> run the OpenGL video renderer, and you should be running that rather than
> the default Xv.
>
That sounds useful, I'm not 100% sure what to do though. Is Xv what X 
uses by default? I have opengl installed. You're saying it doesn't seem 
to be using it?

I've been using this page for reference:
https://wiki.ubuntu.com/X/Troubleshooting/IntelPerformance

glx-info gives me the following:

direct rendering: Yes
OpenGL renderer string: Mesa DRI Intel(R) Ironlake Desktop GEM 20100330 
DEVELOPMENT

which I think means it should be using the hardware.

I've pasted the whole of the glx-info in case it is useful:

name of display: :0.0
display: :0  screen: 0
direct rendering: Yes
server glx vendor string: SGI
server glx version string: 1.4
server glx extensions:
     GLX_ARB_multisample, GLX_EXT_import_context, 
GLX_EXT_texture_from_pixmap,
     GLX_EXT_visual_info, GLX_EXT_visual_rating, GLX_MESA_copy_sub_buffer,
     GLX_OML_swap_method, GLX_SGI_make_current_read, GLX_SGI_swap_control,
     GLX_SGIS_multisample, GLX_SGIX_fbconfig, GLX_SGIX_pbuffer,
     GLX_SGIX_visual_select_group, GLX_INTEL_swap_event
client glx vendor string: Mesa Project and SGI
client glx version string: 1.4
client glx extensions:
     GLX_ARB_get_proc_address, GLX_ARB_multisample, GLX_EXT_import_context,
     GLX_EXT_visual_info, GLX_EXT_visual_rating, GLX_MESA_copy_sub_buffer,
     GLX_MESA_swap_control, GLX_OML_swap_method, GLX_OML_sync_control,
     GLX_SGI_make_current_read, GLX_SGI_swap_control, GLX_SGI_video_sync,
     GLX_SGIS_multisample, GLX_SGIX_fbconfig, GLX_SGIX_pbuffer,
     GLX_SGIX_visual_select_group, GLX_EXT_texture_from_pixmap,
     GLX_INTEL_swap_event
GLX version: 1.4
GLX extensions:
     GLX_ARB_get_proc_address, GLX_ARB_multisample, GLX_EXT_import_context,
     GLX_EXT_visual_info, GLX_EXT_visual_rating, GLX_MESA_copy_sub_buffer,
     GLX_MESA_swap_control, GLX_OML_swap_method, GLX_OML_sync_control,
     GLX_SGI_make_current_read, GLX_SGI_swap_control, GLX_SGI_video_sync,
     GLX_SGIS_multisample, GLX_SGIX_fbconfig, GLX_SGIX_pbuffer,
     GLX_SGIX_visual_select_group, GLX_EXT_texture_from_pixmap,
     GLX_INTEL_swap_event
OpenGL vendor string: Tungsten Graphics, Inc
OpenGL renderer string: Mesa DRI Intel(R) Ironlake Desktop GEM 20100330 
DEVELOPMENT
OpenGL version string: 2.1 Mesa 7.10.2
OpenGL shading language version string: 1.20
OpenGL extensions:
     GL_ARB_copy_buffer, GL_ARB_depth_clamp, GL_ARB_depth_texture,
     GL_ARB_draw_buffers, GL_ARB_draw_elements_base_vertex,
     GL_ARB_explicit_attrib_location, GL_ARB_fragment_coord_conventions,
     GL_ARB_fragment_program, GL_ARB_fragment_program_shadow,
     GL_ARB_fragment_shader, GL_ARB_framebuffer_object,
     GL_ARB_half_float_pixel, GL_ARB_half_float_vertex,
     GL_ARB_map_buffer_range, GL_ARB_multisample, GL_ARB_multitexture,
     GL_ARB_occlusion_query, GL_ARB_pixel_buffer_object,
     GL_ARB_point_parameters, GL_ARB_point_sprite, GL_ARB_provoking_vertex,
     GL_ARB_seamless_cube_map, GL_ARB_shader_objects,
     GL_ARB_shading_language_100, GL_ARB_shadow, GL_ARB_sync,
     GL_ARB_texture_border_clamp, GL_ARB_texture_compression,
     GL_ARB_texture_cube_map, GL_ARB_texture_env_add,
     GL_ARB_texture_env_combine, GL_ARB_texture_env_crossbar,
     GL_ARB_texture_env_dot3, GL_ARB_texture_mirrored_repeat,
     GL_ARB_texture_non_power_of_two, GL_ARB_texture_rectangle,
     GL_ARB_texture_rg, GL_ARB_texture_swizzle, GL_ARB_transpose_matrix,
     GL_ARB_vertex_array_bgra, GL_ARB_vertex_array_object,
     GL_ARB_vertex_buffer_object, GL_ARB_vertex_program, 
GL_ARB_vertex_shader,
     GL_ARB_window_pos, GL_EXT_abgr, GL_EXT_bgra, GL_EXT_blend_color,
     GL_EXT_blend_equation_separate, GL_EXT_blend_func_separate,
     GL_EXT_blend_logic_op, GL_EXT_blend_minmax, GL_EXT_blend_subtract,
     GL_EXT_compiled_vertex_array, GL_EXT_copy_texture, 
GL_EXT_draw_buffers2,
     GL_EXT_draw_range_elements, GL_EXT_fog_coord, GL_EXT_framebuffer_blit,
     GL_EXT_framebuffer_multisample, GL_EXT_framebuffer_object,
     GL_EXT_gpu_program_parameters, GL_EXT_multi_draw_arrays,
     GL_EXT_packed_depth_stencil, GL_EXT_packed_pixels,
     GL_EXT_pixel_buffer_object, GL_EXT_point_parameters,
     GL_EXT_polygon_offset, GL_EXT_provoking_vertex, GL_EXT_rescale_normal,
     GL_EXT_secondary_color, GL_EXT_separate_shader_objects,
     GL_EXT_separate_specular_color, GL_EXT_shadow_funcs,
     GL_EXT_stencil_two_side, GL_EXT_stencil_wrap, GL_EXT_subtexture,
     GL_EXT_texture3D, GL_EXT_texture_cube_map, GL_EXT_texture_edge_clamp,
     GL_EXT_texture_env_add, GL_EXT_texture_env_combine,
     GL_EXT_texture_env_dot3, GL_EXT_texture_filter_anisotropic,
     GL_EXT_texture_lod_bias, GL_EXT_texture_object, GL_EXT_texture,
     GL_EXT_texture_rectangle, GL_EXT_texture_sRGB, GL_EXT_texture_swizzle,
     GL_EXT_timer_query, GL_EXT_vertex_array_bgra, GL_EXT_vertex_array,
     GL_OES_EGL_image, GL_OES_read_format, 
GL_3DFX_texture_compression_FXT1,
     GL_APPLE_client_storage, GL_APPLE_object_purgeable,
     GL_APPLE_packed_pixels, GL_APPLE_vertex_array_object,
     GL_ATI_blend_equation_separate, GL_ATI_envmap_bumpmap,
     GL_ATI_separate_stencil, GL_ATI_texture_env_combine3,
     GL_IBM_multimode_draw_arrays, GL_IBM_rasterpos_clip,
     GL_IBM_texture_mirrored_repeat, GL_INGR_blend_func_separate,
     GL_MESA_pack_invert, GL_MESA_texture_signed_rgba, GL_MESA_window_pos,
     GL_MESA_ycbcr_texture, GL_NV_blend_square, GL_NV_depth_clamp,
     GL_NV_light_max_exponent, GL_NV_packed_depth_stencil,
     GL_NV_texgen_reflection, GL_NV_texture_env_combine4,
     GL_NV_texture_rectangle, GL_NV_vertex_program1_1, 
GL_NV_vertex_program,
     GL_SGIS_generate_mipmap, GL_SGIS_texture_border_clamp,
     GL_SGIS_texture_edge_clamp, GL_SGIS_texture_lod, 
GL_SUN_multi_draw_arrays

32 GLX Visuals
     visual  x   bf lv rg d st  colorbuffer  sr ax dp st accumbuffer  
ms  cav
   id dep cl sp  sz l  ci b ro  r  g  b  a F gb bf th cl  r  g  b  a ns 
b eat
----------------------------------------------------------------------------
0x021 24 tc  0  32  0 r  y .   8  8  8  8 .  .  0 24  8  0  0  0  0  0 0 
None
0x022 24 dc  0  32  0 r  y .   8  8  8  8 .  .  0 24  8  0  0  0  0  0 0 
None
0x08c 24 tc  0  24  0 r  . .   8  8  8  0 .  .  0  0  0  0  0  0  0  0 0 
None
0x08d 24 tc  0  24  0 r  y .   8  8  8  0 .  .  0  0  0  0  0  0  0  0 0 
None
0x08e 24 tc  0  24  0 r  y .   8  8  8  0 .  .  0  0  0  0  0  0  0  0 0 
None
0x08f 24 tc  0  24  0 r  . .   8  8  8  0 .  .  0 24  8  0  0  0  0  0 0 
None
0x090 24 tc  0  24  0 r  y .   8  8  8  0 .  .  0 24  8  0  0  0  0  0 0 
None
0x091 24 tc  0  24  0 r  y .   8  8  8  0 .  .  0 24  8  0  0  0  0  0 0 
None
0x092 24 tc  0  32  0 r  . .   8  8  8  8 .  .  0  0  0  0  0  0  0  0 0 
None
0x093 24 tc  0  32  0 r  y .   8  8  8  8 .  .  0  0  0  0  0  0  0  0 0 
None
0x094 24 tc  0  32  0 r  y .   8  8  8  8 .  .  0  0  0  0  0  0  0  0 0 
None
0x095 24 tc  0  32  0 r  . .   8  8  8  8 .  .  0 24  8  0  0  0  0  0 0 
None
0x096 24 tc  0  24  0 r  y .   8  8  8  0 .  .  0 24  8  0  0  0  0  0 0 
None
0x097 24 tc  0  24  0 r  y .   8  8  8  0 .  .  0 24  8 16 16 16  0  0 0 
Slow
0x098 24 tc  0  32  0 r  y .   8  8  8  8 .  .  0 24  8  0  0  0  0  0 0 
None
0x099 24 tc  0  32  0 r  y .   8  8  8  8 .  .  0 24  8 16 16 16 16  0 0 
Slow
0x09a 24 dc  0  24  0 r  . .   8  8  8  0 .  .  0  0  0  0  0  0  0  0 0 
None
0x09b 24 dc  0  24  0 r  y .   8  8  8  0 .  .  0  0  0  0  0  0  0  0 0 
None
0x09c 24 dc  0  24  0 r  y .   8  8  8  0 .  .  0  0  0  0  0  0  0  0 0 
None
0x09d 24 dc  0  24  0 r  . .   8  8  8  0 .  .  0 24  8  0  0  0  0  0 0 
None
0x09e 24 dc  0  24  0 r  y .   8  8  8  0 .  .  0 24  8  0  0  0  0  0 0 
None
0x09f 24 dc  0  24  0 r  y .   8  8  8  0 .  .  0 24  8  0  0  0  0  0 0 
None
0x0a0 24 dc  0  32  0 r  . .   8  8  8  8 .  .  0  0  0  0  0  0  0  0 0 
None
0x0a1 24 dc  0  32  0 r  y .   8  8  8  8 .  .  0  0  0  0  0  0  0  0 0 
None
0x0a2 24 dc  0  32  0 r  y .   8  8  8  8 .  .  0  0  0  0  0  0  0  0 0 
None
0x0a3 24 dc  0  32  0 r  . .   8  8  8  8 .  .  0 24  8  0  0  0  0  0 0 
None
0x0a4 24 dc  0  32  0 r  y .   8  8  8  8 .  .  0 24  8  0  0  0  0  0 0 
None
0x0a5 24 dc  0  24  0 r  y .   8  8  8  0 .  .  0 24  8  0  0  0  0  0 0 
None
0x0a6 24 dc  0  24  0 r  y .   8  8  8  0 .  .  0 24  8 16 16 16  0  0 0 
Slow
0x0a7 24 dc  0  32  0 r  y .   8  8  8  8 .  .  0 24  8  0  0  0  0  0 0 
None
0x0a8 24 dc  0  32  0 r  y .   8  8  8  8 .  .  0 24  8 16 16 16 16  0 0 
Slow
0x05b 32 tc  0  32  0 r  y .   8  8  8  8 .  .  0 24  8  0  0  0  0  0 0 
None

48 GLXFBConfigs:
     visual  x   bf lv rg d st  colorbuffer  sr ax dp st accumbuffer  
ms  cav
   id dep cl sp  sz l  ci b ro  r  g  b  a F gb bf th cl  r  g  b  a ns 
b eat
----------------------------------------------------------------------------
0x05c  0 tc  0  16  0 r  . .   5  6  5  0 .  .  0  0  0  0  0  0  0  0 0 
None
0x05d  0 tc  0  16  0 r  y .   5  6  5  0 .  .  0  0  0  0  0  0  0  0 0 
None
0x05e  0 tc  0  16  0 r  y .   5  6  5  0 .  .  0  0  0  0  0  0  0  0 0 
None
0x05f  0 tc  0  16  0 r  . .   5  6  5  0 .  .  0 16  0  0  0  0  0  0 0 
None
0x060  0 tc  0  16  0 r  y .   5  6  5  0 .  .  0 16  0  0  0  0  0  0 0 
None
0x061  0 tc  0  16  0 r  y .   5  6  5  0 .  .  0 16  0  0  0  0  0  0 0 
None
0x062 24 tc  0  24  0 r  . .   8  8  8  0 .  .  0  0  0  0  0  0  0  0 0 
None
0x063 24 tc  0  24  0 r  y .   8  8  8  0 .  .  0  0  0  0  0  0  0  0 0 
None
0x064 24 tc  0  24  0 r  y .   8  8  8  0 .  .  0  0  0  0  0  0  0  0 0 
None
0x065 24 tc  0  24  0 r  . .   8  8  8  0 .  .  0 24  8  0  0  0  0  0 0 
None
0x066 24 tc  0  24  0 r  y .   8  8  8  0 .  .  0 24  8  0  0  0  0  0 0 
None
0x067 24 tc  0  24  0 r  y .   8  8  8  0 .  .  0 24  8  0  0  0  0  0 0 
None
0x068 24 tc  0  32  0 r  . .   8  8  8  8 .  .  0  0  0  0  0  0  0  0 0 
None
0x069 24 tc  0  32  0 r  y .   8  8  8  8 .  .  0  0  0  0  0  0  0  0 0 
None
0x06a 24 tc  0  32  0 r  y .   8  8  8  8 .  .  0  0  0  0  0  0  0  0 0 
None
0x06b 24 tc  0  32  0 r  . .   8  8  8  8 .  .  0 24  8  0  0  0  0  0 0 
None
0x06c 24 tc  0  32  0 r  y .   8  8  8  8 .  .  0 24  8  0  0  0  0  0 0 
None
0x06d 32 tc  0  32  0 r  y .   8  8  8  8 .  .  0 24  8  0  0  0  0  0 0 
None
0x06e  0 tc  0  16  0 r  y .   5  6  5  0 .  .  0 16  0  0  0  0  0  0 0 
None
0x06f  0 tc  0  16  0 r  y .   5  6  5  0 .  .  0 16  0 16 16 16  0  0 0 
Slow
0x070 24 tc  0  24  0 r  y .   8  8  8  0 .  .  0 24  8  0  0  0  0  0 0 
None
0x071 24 tc  0  24  0 r  y .   8  8  8  0 .  .  0 24  8 16 16 16  0  0 0 
Slow
0x072 24 tc  0  32  0 r  y .   8  8  8  8 .  .  0 24  8  0  0  0  0  0 0 
None
0x073 24 tc  0  32  0 r  y .   8  8  8  8 .  .  0 24  8 16 16 16 16  0 0 
Slow
0x074  0 dc  0  16  0 r  . .   5  6  5  0 .  .  0  0  0  0  0  0  0  0 0 
None
0x075  0 dc  0  16  0 r  y .   5  6  5  0 .  .  0  0  0  0  0  0  0  0 0 
None
0x076  0 dc  0  16  0 r  y .   5  6  5  0 .  .  0  0  0  0  0  0  0  0 0 
None
0x077  0 dc  0  16  0 r  . .   5  6  5  0 .  .  0 16  0  0  0  0  0  0 0 
None
0x078  0 dc  0  16  0 r  y .   5  6  5  0 .  .  0 16  0  0  0  0  0  0 0 
None
0x079  0 dc  0  16  0 r  y .   5  6  5  0 .  .  0 16  0  0  0  0  0  0 0 
None
0x07a 24 dc  0  24  0 r  . .   8  8  8  0 .  .  0  0  0  0  0  0  0  0 0 
None
0x07b 24 dc  0  24  0 r  y .   8  8  8  0 .  .  0  0  0  0  0  0  0  0 0 
None
0x07c 24 dc  0  24  0 r  y .   8  8  8  0 .  .  0  0  0  0  0  0  0  0 0 
None
0x07d 24 dc  0  24  0 r  . .   8  8  8  0 .  .  0 24  8  0  0  0  0  0 0 
None
0x07e 24 dc  0  24  0 r  y .   8  8  8  0 .  .  0 24  8  0  0  0  0  0 0 
None
0x07f 24 dc  0  24  0 r  y .   8  8  8  0 .  .  0 24  8  0  0  0  0  0 0 
None
0x080 24 dc  0  32  0 r  . .   8  8  8  8 .  .  0  0  0  0  0  0  0  0 0 
None
0x081 24 dc  0  32  0 r  y .   8  8  8  8 .  .  0  0  0  0  0  0  0  0 0 
None
0x082 24 dc  0  32  0 r  y .   8  8  8  8 .  .  0  0  0  0  0  0  0  0 0 
None
0x083 24 dc  0  32  0 r  . .   8  8  8  8 .  .  0 24  8  0  0  0  0  0 0 
None
0x084 24 dc  0  32  0 r  y .   8  8  8  8 .  .  0 24  8  0  0  0  0  0 0 
None
0x085 24 dc  0  32  0 r  y .   8  8  8  8 .  .  0 24  8  0  0  0  0  0 0 
None
0x086  0 dc  0  16  0 r  y .   5  6  5  0 .  .  0 16  0  0  0  0  0  0 0 
None
0x087  0 dc  0  16  0 r  y .   5  6  5  0 .  .  0 16  0 16 16 16  0  0 0 
Slow
0x088 24 dc  0  24  0 r  y .   8  8  8  0 .  .  0 24  8  0  0  0  0  0 0 
None
0x089 24 dc  0  24  0 r  y .   8  8  8  0 .  .  0 24  8 16 16 16  0  0 0 
Slow
0x08a 24 dc  0  32  0 r  y .   8  8  8  8 .  .  0 24  8  0  0  0  0  0 0 
None
0x08b 24 dc  0  32  0 r  y .   8  8  8  8 .  .  0 24  8 16 16 16 16  0 0 
Slow



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