Google Chrome - wysokie użycie procesora podczas oglądania video

Korzystam z przeglądarki Google Chrome 94.0.4606.81 na Windows 7 Home Premium (x64).
Sprzęt również nie jest najmocniejszy: konfiguracja.
Zauważyłem, że od jakiegoś czasu, podczas oglądania video o rozdzielczości równej bądź większej 1080p zużycie procesora przez proces chrome.exe wzrasta do kilkudziesięciu procent.
Przypuszczam, że to chyba przez planowane porzucenie wsparcia dla H264 i wymuszenie obsługi VP8 i VP9.
Dla YouTube jest rozszerzenie h264ify, które spełnia swoje zadanie, ale na innych stronach nie działa. Jak więc sobie z tym poradzić?

Dorzucam raport z chrome://gpu:

Podsumowanie

Graphics Feature Status

  • Canvas: Hardware accelerated
  • Compositing: Hardware accelerated
  • Multiple Raster Threads: Enabled
  • Out-of-process Rasterization: Unavailable
  • OpenGL: Enabled
  • Rasterization: Unavailable
  • Skia Renderer: Enabled
  • Video Decode: Unavailable
  • Vulkan: Disabled
  • WebGL: Hardware accelerated
  • WebGL2: Unavailable

Driver Bug Workarounds

  • clear_uniforms_before_first_program_use
  • decode_encode_srgb_for_generatemipmap
  • disable_accelerated_vp8_decode
  • disable_accelerated_vp9_decode
  • disable_d3d11
  • disable_decode_swap_chain
  • disable_delayed_copy_nv12
  • disable_direct_composition
  • disable_direct_composition_sw_video_overlays
  • disable_dxgi_zero_copy_video
  • disable_imagebitmap_from_video_using_gpu
  • disable_nv12_dynamic_textures
  • enable_bgra8_overlays_with_yuv_overlay_support
  • enable_webgl_timer_query_extensions
  • exit_on_context_lost
  • force_direct_composition_full_damage_always
  • max_msaa_sample_count_4
  • msaa_is_slow
  • disabled_extension_GL_KHR_blend_equation_advanced
  • disabled_extension_GL_KHR_blend_equation_advanced_coherent

Problems Detected

  • Accelerated video decode interferes with GPU sandbox on older Intel drivers: 180695, 298968, 436968
    Disabled Features: accelerated_video_decode
  • GPU rasterization should only be enabled on NVIDIA and Intel and AMD RX-R2 GPUs with DX11+ or any GPU using ANGLE’s GL backend.: 1047002
    Disabled Features: gpu_rasterization
  • Old Intel drivers cannot reliably support D3D11/WebGL2: 363721
    Disabled Features: accelerated_webgl2
  • Some drivers are unable to reset the D3D device in the GPU process sandbox
    Applied Workarounds: exit_on_context_lost
  • Clear uniforms before first program use on all platforms: 124764, 349137
    Applied Workarounds: clear_uniforms_before_first_program_use
  • Old Intel drivers cannot reliably support D3D11: 363721
    Applied Workarounds: disable_d3d11
  • On Intel GPUs MSAA performance is not acceptable for GPU rasterization: 527565
    Applied Workarounds: msaa_is_slow
  • Direct composition flashes black initially on Win <10: 588588
    Applied Workarounds: disable_direct_composition
  • Zero copy DXGI video hangs on shutdown on Win < 8.1: 621190
    Applied Workarounds: disable_dxgi_zero_copy_video
  • Disable KHR_blend_equation_advanced until cc shaders are updated: 661715
    Applied Workarounds: disable(GL_KHR_blend_equation_advanced), disable(GL_KHR_blend_equation_advanced_coherent)
  • Decode and Encode before generateMipmap for srgb format textures on Windows: 634519
    Applied Workarounds: decode_encode_srgb_for_generatemipmap
  • VPx decoding isn’t supported well before Windows 10 creators update.: 616318, 667532
    Applied Workarounds: disable_accelerated_vp8_decode, disable_accelerated_vp9_decode
  • Accelerated VP9 decoding is hanging on some videos.: 654111
    Applied Workarounds: disable_accelerated_vp9_decode
  • Delayed copy NV12 crashes on Intel on Windows <= 8.1.: 727216
    Applied Workarounds: disable_delayed_copy_nv12
  • Expose WebGL’s disjoint_timer_query extensions on platforms with site isolation: 808744, 870491
    Applied Workarounds: enable_webgl_timer_query_extensions
  • Direct composition causes rendering issues on Intel SandyBridge and IvyBridge GPUs: 775898, 785648, 9245627
    Applied Workarounds: disable_direct_composition
  • Dynamic texture map crashes on Intel drivers less than version 24: 890227
    Applied Workarounds: disable_nv12_dynamic_textures
  • Disable using GPU backed resource for imageBitmap from video on d3d9: 1098445, 1105923
    Applied Workarounds: disable_imagebitmap_from_video_using_gpu
  • VP8 decoding crashes before Windows 10 Fall Creators Update.: 1094840
    Applied Workarounds: disable_accelerated_vp8_decode
  • Disable DecodeSwapChain for Intel Gen9 and older devices: 1107403
    Applied Workarounds: disable_decode_swap_chain
  • Intel GPUs fail to report BGRA8 overlay support: 1119491
    Applied Workarounds: enable_bgra8_overlays_with_yuv_overlay_support
  • 8x MSAA for WebGL contexts is slow on Win Intel: 1145793
    Applied Workarounds: max_msaa_sample_count_4
  • Disable software overlays for Intel GPUs. All Skylake+ devices support hw overlays, older devices peform poorly.: 1192748
    Applied Workarounds: disable_direct_composition_sw_video_overlays
  • Always force direct composition full damage on older Windows 10 releases: 1212825
    Applied Workarounds: force_direct_composition_full_damage_always

ANGLE Features

  • allow_compressed_formats (Frontend workarounds): Enabled: true
    Allow compressed formats
  • disable_anisotropic_filtering (Frontend workarounds): Disabled
    Disable support for anisotropic filtering
  • disable_program_binary (Frontend features) anglebug:5007: Disabled
    Disable support for GL_OES_get_program_binary
  • disable_program_caching_for_transform_feedback (Frontend workarounds): Disabled
    On some GPUs, program binaries don’t contain transform feedback varyings
  • enableCompressingPipelineCacheInThreadPool (Frontend workarounds) anglebug:4722: Disabled: false
    Enable compressing pipeline cache in thread pool.
  • enable_capture_limits (Frontend features) anglebug:5750: Disabled
    Set the context limits like frame capturing was enabled
  • forceRobustResourceInit (Frontend workarounds) anglebug:6041: Disabled
    Force-enable robust resource init
  • lose_context_on_out_of_memory (Frontend workarounds): Enabled: true
    Some users rely on a lost context notification if a GL_OUT_OF_MEMORY error occurs
  • scalarize_vec_and_mat_constructor_args (Frontend workarounds) 1165751: Disabled: false
    Always rewrite vec/mat constructors to be consistent
  • sync_framebuffer_bindings_on_tex_image (Frontend workarounds): Disabled
    On some drivers TexImage sometimes seems to interact with the Framebuffer
  • add_mock_texture_no_render_target (D3D workarounds) anglebug:2152: Disabled
    On some drivers when rendering with no render target, two bugs lead to incorrect behavior
  • allowES3OnFL10_0 (D3D workarounds): Disabled
    Allow ES3 on 10.0 devices
  • allow_clear_for_robust_resource_init (D3D workarounds) 941620: Enabled: true
    Some drivers corrupt texture data when clearing for robust resource initialization.
  • allow_translate_uniform_block_to_structured_buffer (D3D workarounds) anglebug:3682: Disabled
    There is a slow fxc compile performance issue with dynamic uniform indexing if translating a uniform block with a large array member to cbuffer.
  • call_clear_twice (D3D workarounds) 655534: Disabled
    Using clear() may not take effect
  • depth_stencil_blit_extra_copy (D3D workarounds) anglebug:1452: Disabled
    Bug in some drivers triggers a TDR when using CopySubresourceRegion from a staging texture to a depth/stencil
  • disable_b5g6r5_support (D3D workarounds): Disabled
    Textures with the format DXGI_FORMAT_B5G6R5_UNORM have incorrect data
  • emulate_isnan_float (D3D workarounds) 650547: Disabled
    Using isnan() on highp float will get wrong answer
  • emulate_tiny_stencil_textures (D3D workarounds): Disabled
    1x1 and 2x2 mips of depth/stencil textures aren’t sampled correctly
  • expand_integer_pow_expressions (D3D workarounds): Enabled: true
    The HLSL optimizer has a bug with optimizing ‘pow’ in certain integer-valued expressions
  • flush_after_ending_transform_feedback (D3D workarounds): Disabled
    Some drivers sometimes write out-of-order results to StreamOut buffers when transform feedback is used to repeatedly write to the same buffer positions
  • force_atomic_value_resolution (D3D workarounds) anglebug:3246: Disabled
    On some drivers the return value from RWByteAddressBuffer.InterlockedAdd does not resolve when used in the .yzw components of a RWByteAddressBuffer.Store operation
  • get_dimensions_ignores_base_level (D3D workarounds): Disabled
    Some drivers do not take into account the base level of the texture in the results of the HLSL GetDimensions builtin
  • mrt_perf_workaround (D3D workarounds): Enabled: true
    Some drivers have a bug where they ignore null render targets
  • pre_add_texel_fetch_offsets (D3D workarounds): Disabled
    HLSL’s function texture.Load returns 0 when the parameter Location is negative, even if the sum of Offset and Location is in range
  • rewrite_unary_minus_operator (D3D workarounds): Disabled
    Evaluating unary minus operator on integer may get wrong answer in vertex shaders
  • select_view_in_geometry_shader (D3D workarounds): Disabled
    The viewport or render target slice will be selected in the geometry shader stage for the ANGLE_multiview extension
  • set_data_faster_than_image_upload (D3D workarounds): Disabled: false
    Set data faster than image upload
  • skip_vs_constant_register_zero (D3D workarounds): Disabled
    In specific cases the driver doesn’t handle constant register zero correctly
  • use_instanced_point_sprite_emulation (D3D workarounds): Disabled: false
    Some D3D11 renderers do not support geometry shaders for pointsprite emulation
  • use_system_memory_for_constant_buffers (D3D workarounds) 593024: Disabled
    Copying from staging storage to constant buffer storage does not work
  • zero_max_lod (D3D workarounds): Disabled
    Missing an option to disable mipmaps on a mipmapped texture

Version Information

Data exported 2021-10-11T11:04:39.271Z
Chrome version Chrome/94.0.4606.81
Operating system Windows NT 6.1.7601 SP1
Software rendering list URL gpu/config/software_rendering_list.json - chromium/src - Git at Google
Driver bug list URL gpu/config/gpu_driver_bug_list.json - chromium/src - Git at Google
ANGLE commit id e8cb0e7aa328
2D graphics backend Skia/94 bc94e71ede7c98dd5de2917bf01cbf38aba26e5a
Command Line „C:\Program Files (x86)\Google\Chrome\Application\chrome.exe” --profile-directory=„Profile 1” --flag-switches-begin --disable-smooth-scrolling --flag-switches-end

Driver Information

Initialization time 7233
In-process GPU false
Passthrough Command Decoder true
Sandboxed true
GPU0 VENDOR= 0x8086 [Google Inc. (Intel)], DEVICE=0x0116 [ANGLE (Intel, Intel(R) HD Graphics Family Direct3D9Ex vs_3_0 ps_3_0, igdumd64.dll-8.15.10.2342)], SUBSYS=0x05041028, REV=9, LUID={0,28847} ACTIVE
Optimus false
AMD switchable false
Desktop compositing none
Direct composition false
Supports overlays false
YUY2 overlay support NONE
NV12 overlay support NONE
BGRA8 overlay support NONE
RGB10A2 overlay support NONE
Diagonal Monitor Size of \.\DISPLAY1 15.5"
Driver D3D12 feature level Not supported
Driver Vulkan API version Not supported
Driver vendor Intel
Driver version 8.15.10.2342
GPU CUDA compute capability major version 0
Pixel shader version 3.0
Vertex shader version 3.0
Max. MSAA samples 4
Machine model name
Machine model version
GL_VENDOR Google Inc. (Intel)
GL_RENDERER ANGLE (Intel, Intel(R) HD Graphics Family Direct3D9Ex vs_3_0 ps_3_0, igdumd64.dll-8.15.10.2342)
GL_VERSION OpenGL ES 2.0.0 (ANGLE 2.1.16450 git hash: e8cb0e7aa328)
GL_EXTENSIONS GL_ANGLE_client_arrays GL_ANGLE_depth_texture GL_ANGLE_framebuffer_blit GL_ANGLE_framebuffer_multisample GL_ANGLE_get_serialized_context_string GL_ANGLE_get_tex_level_parameter GL_ANGLE_instanced_arrays GL_ANGLE_memory_size GL_ANGLE_multi_draw GL_ANGLE_pack_reverse_row_order GL_ANGLE_program_cache_control GL_ANGLE_request_extension GL_ANGLE_robust_client_memory GL_ANGLE_texture_compression_dxt3 GL_ANGLE_texture_compression_dxt5 GL_ANGLE_texture_usage GL_ANGLE_translated_shader_source GL_CHROMIUM_bind_generates_resource GL_CHROMIUM_bind_uniform_location GL_CHROMIUM_color_buffer_float_rgb GL_CHROMIUM_color_buffer_float_rgba GL_CHROMIUM_copy_texture GL_CHROMIUM_lose_context GL_CHROMIUM_sync_query GL_EXT_blend_minmax GL_EXT_color_buffer_half_float GL_EXT_debug_label GL_EXT_debug_marker GL_EXT_float_blend GL_EXT_frag_depth GL_EXT_occlusion_query_boolean GL_EXT_read_format_bgra GL_EXT_robustness GL_EXT_sRGB GL_EXT_shader_texture_lod GL_EXT_texture_compression_dxt1 GL_EXT_texture_compression_s3tc_srgb GL_EXT_texture_filter_anisotropic GL_EXT_texture_format_BGRA8888 GL_EXT_texture_storage GL_EXT_unpack_subimage GL_KHR_debug GL_KHR_parallel_shader_compile GL_NV_fence GL_NV_pack_subimage GL_NV_read_depth GL_NV_read_stencil GL_OES_EGL_image GL_OES_EGL_image_external GL_OES_depth32 GL_OES_element_index_uint GL_OES_get_program_binary GL_OES_packed_depth_stencil GL_OES_rgb8_rgba8 GL_OES_standard_derivatives GL_OES_surfaceless_context GL_OES_texture_border_clamp GL_OES_texture_float GL_OES_texture_float_linear GL_OES_texture_half_float GL_OES_texture_half_float_linear GL_OES_texture_npot GL_OES_texture_stencil8 GL_OES_vertex_array_object GL_WEBGL_video_texture
Disabled Extensions GL_KHR_blend_equation_advanced GL_KHR_blend_equation_advanced_coherent
Disabled WebGL Extensions
Window system binding vendor Google Inc. (Intel)
Window system binding version 1.5 (ANGLE 2.1.16450 git hash: e8cb0e7aa328)
Window system binding extensions EGL_EXT_create_context_robustness EGL_ANGLE_d3d_share_handle_client_buffer EGL_ANGLE_d3d_texture_client_buffer EGL_ANGLE_surface_d3d_texture_2d_share_handle EGL_ANGLE_query_surface_pointer EGL_ANGLE_window_fixed_size EGL_NV_post_sub_buffer EGL_KHR_create_context EGL_KHR_image EGL_KHR_image_base EGL_KHR_gl_texture_2D_image EGL_KHR_gl_renderbuffer_image EGL_KHR_get_all_proc_addresses EGL_ANGLE_flexible_surface_compatibility EGL_ANGLE_create_context_webgl_compatibility EGL_CHROMIUM_create_context_bind_generates_resource EGL_EXT_pixel_format_float EGL_KHR_surfaceless_context EGL_ANGLE_display_texture_share_group EGL_ANGLE_display_semaphore_share_group EGL_ANGLE_create_context_client_arrays EGL_ANGLE_program_cache_control EGL_ANGLE_robust_resource_initialization EGL_ANGLE_create_context_extensions_enabled EGL_ANDROID_blob_cache EGL_ANDROID_recordable EGL_ANGLE_create_context_backwards_compatible EGL_KHR_create_context_no_error EGL_KHR_reusable_sync EGL_KHR_mutable_render_buffer
Direct rendering version unknown
Reset notification strategy 0x8252
GPU process crash count 0
gfx::BufferFormats supported for allocation and texturing R_8: not supported, R_16: not supported, RG_88: not supported, BGR_565: not supported, RGBA_4444: not supported, RGBX_8888: not supported, RGBA_8888: not supported, BGRX_8888: not supported, BGRA_1010102: not supported, RGBA_1010102: not supported, BGRA_8888: not supported, RGBA_F16: not supported, YVU_420: not supported, YUV_420_BIPLANAR: not supported, P010: not supported

Compositor Information

Tile Update Mode One-copy
Partial Raster Enabled

GpuMemoryBuffers Status

R_8 Software only
R_16 Software only
RG_88 Software only
BGR_565 Software only
RGBA_4444 Software only
RGBX_8888 GPU_READ, SCANOUT
RGBA_8888 GPU_READ, SCANOUT
BGRX_8888 Software only
BGRA_1010102 Software only
RGBA_1010102 Software only
BGRA_8888 Software only
RGBA_F16 Software only
YVU_420 Software only
YUV_420_BIPLANAR GPU_READ, SCANOUT, SCANOUT_CPU_READ_WRITE, GPU_READ_CPU_READ_WRITE
P010 Software only

Display(s) Information

Info Display[2528732444] bounds=[0,0 1366x768], workarea=[0,0 1366x740], scale=1, rotation=0, panel_rotation=0 internal.
Color space (sRGB/no-alpha) {primaries:BT709, transfer:IEC61966_2_1, matrix:RGB, range:FULL}
Buffer format (sRGB/no-alpha) BGRX_8888
Color space (sRGB/alpha) {primaries:BT709, transfer:IEC61966_2_1, matrix:RGB, range:FULL}
Buffer format (sRGB/alpha) BGRA_8888
Color space (WCG/no-alpha) {primaries:BT709, transfer:IEC61966_2_1, matrix:RGB, range:FULL}
Buffer format (WCG/no-alpha) BGRX_8888
Color space (WCG/alpha) {primaries:BT709, transfer:IEC61966_2_1, matrix:RGB, range:FULL}
Buffer format (WCG/alpha) BGRA_8888
Color space (HDR/no-alpha) {primaries:BT709, transfer:IEC61966_2_1, matrix:RGB, range:FULL}
Buffer format (HDR/no-alpha) BGRX_8888
Color space (HDR/alpha) {primaries:BT709, transfer:IEC61966_2_1, matrix:RGB, range:FULL}
Buffer format (HDR/alpha) BGRA_8888
SDR white level in nits 80
Bits per color component 8
Bits per pixel 24
Refresh Rate in Hz 60

Video Acceleration Information

Encoding

Vulkan Information

Device Performance Information

Total Physical Memory (Gb) 7
Total Disk Space (Gb) 451
Hardware Concurrency 4
System Commit Limit (Gb) 15
D3D11 Feature Level Unknown
Has Discrete GPU unknown
Intel GPU Generation 6
Software Rendering No

Diagnostics

0

b3DAccelerationEnabled true


b3DAccelerationExists true
bAGPEnabled true
bAGPExistenceValid true
bAGPExists true
bCanRenderWindow true
bDDAccelerationEnabled true
bDriverBeta false
bDriverDebug false
bDriverSigned false
bDriverSignedValid false
bNoHardware false
dwBpp 32
dwDDIVersion 10
dwHeight 768
dwRefreshRate 60
dwWHQLLevel 0
dwWidth 1366
iAdapter 0
lDriverSize 7473664
lMiniVddSize 0
szAGPStatusEnglish Enabled
szAGPStatusLocalized Włączone
szChipType Intel(R) HD Graphics Family
szD3DStatusEnglish Enabled
szD3DStatusLocalized Włączone
szDACType Internal
szDDIVersionEnglish 10.1
szDDIVersionLocalized 10.1
szDDStatusEnglish Enabled
szDDStatusLocalized Włączone
szDXVAHDEnglish Supported
szDXVAModes ModeMPEG2_A ModeMPEG2_C ModeWMV9_C ModeVC1_C
szDescription Intel(R) HD Graphics Family
szDeviceId 0x0116
szDeviceIdentifier {D7B78E66-4256-11CF-BE7A-0E25A9C2C535}
szDeviceName \.\DISPLAY1
szDisplayMemoryEnglish 1696 MB
szDisplayMemoryLocalized 1696 MB
szDisplayModeEnglish 1366 x 768 (32 bit) (60Hz)
szDisplayModeLocalized 1366 x 768 (32 bit) (60Hz)
szDriverAssemblyVersion 8.15.10.2342
szDriverAttributes Final Retail
szDriverDateEnglish 3/26/2011 04:17:46
szDriverDateLocalized 2011-03-26 04:17:46
szDriverLanguageEnglish English
szDriverLanguageLocalized Angielski
szDriverModelEnglish WDDM 1.1
szDriverModelLocalized WDDM 1.1
szDriverName igdumd64.dll,igd10umd64.dll,igd10umd64.dll,igdumdx32,igd10umd32,igd10umd32
szDriverNodeStrongName oem3.inf:Intel.Mfg.NTamd64:iSNBM0:8.15.10.2342:pci\ven_8086&dev_0116&subsys_05041028
szDriverSignDate
szDriverVersion 8.15.0010.2342
szKeyDeviceID Enum\PCI\VEN_8086&DEV_0116&SUBSYS_05041028&REV_09
szKeyDeviceKey \Registry\Machine\System\CurrentControlSet\Control\Video{D16D1C0F-EB17-4B9D-ADD4-6DF57DD74729}\0000
szManufacturer Intel Corporation
szMiniVdd n/d
szMiniVddDateEnglish n/a
szMiniVddDateLocalized n/d
szMonitorMaxRes
szMonitorName Rodzajowy monitor PnP
szNotesEnglish No problems found.
szNotesLocalized Nie znaleziono żadnych problemów.
szOverlayEnglish Supported
szRankOfInstalledDriver 00E60001
szRegHelpText
szRevision
szRevisionId 0x0009
szSubSysId 0x05041028
szTestResultD3D7English Not run
szTestResultD3D7Localized Nie uruchomiono
szTestResultD3D8English Not run
szTestResultD3D8Localized Nie uruchomiono
szTestResultD3D9English Not run
szTestResultD3D9Localized Nie uruchomiono
szTestResultDDEnglish Not run
szTestResultDDLocalized Nie uruchomiono
szVdd n/d
szVendorId 0x8086

Log Messages

  • GpuProcessHost: The info collection GPU process exited normally. Everything is okay.
  • GpuProcessHost: The info collection GPU process exited normally. Everything is okay.

Jak w procesorze psuje się „krzem” (tzw. realne zużycie) to może problem rozwiąże się gdy cpu pewnego dnia będzie nadawało się do utylizacji.

H264ify ma niby na github wątek/pr zezwalające na pracę w większej grupie domen.
Może wystarczy wyłączyć limitację pod kilka domen i użyć najbardziej poprawionej wersji kodu od kiedy w 2019 oryginalny autor ogłosił, że nie ma czasu (ale może kupił wózek zawczasu :baby: :baby_bottle: :baby_symbol:).

Gorzej jak domena nie ma do zaoferowania innego formatu niż VP8/VP9.

Google wymusza VP9 dla YT bo zwyczajnie im się to opłaca (mniejszy transfer=niższe koszty)
Oczywiście nie jest to w interesie użytkowników ze starszym sprzętem.
Nie zapowiada się jednak, aby YouTube zrezygnował ze wsparcia H.264 (Prędzej VP9 zastąpi AV1).
Zbyt dużo starych urządzeń obsługuje tylko H.264.

Podobnie jest z Twoim urządzeniem, sprzętowo dekodowanie H.264 jest możliwe, VP9 już nie.
Szczerze mówiąc nie wiem czy jesteś w stanie z tym cokolwiek zrobić.
Jeśli treść na stronie będzie dostępna jedynie w VP9 to po prostu dekodowanie będzie obsłużone programowo przez CPU i przy wyższym bitrate/rozdzielczości może występować zacinanie.

10 letni procek, konkurujący ze współczesnymi Atomami i prawdopodobnie bez części kodeków… czyli NORMA. :slight_smile:

@MatX1, z tego, co pamiętam, to gdy VP8/VP9 w Chrome były w fazie testowej, była możliwość wyłączenia ich obsługi poprzez flagi. Teraz niestety nie widzę takiej możliwości.

Dla Firefoxa jest dodatek, który powinien dodawać obsługę h264 w filmach YT osadzonych na stronach

I wątek na Githubie

Flaga nie wyczaruje kawałka krzemu do dekodowania VP8/9 :wink:
Generalnie poza YT wg mnie przeglądarka powinna preferować video w formacie (np. H.264), który komputer potrafi zdekodować sprzętowo.
Jeśli tego nie robi, to być może nie ma takiego video na stronie.

Niemniej nie badałem jak to faktycznie wygląda, być może Google forsuje swój kodek wszędzie, nawet jeśli nie jest to uzasadnione interesem użytkownika.

Dlatego teraz jak mam lepsze łącze to 4k z YT oglądam wyłącznie przy pomocy MPV Playera z konfigiem ustawionym na wymuszanie H.264.
Niestety, ale od jakiegoś czasu Google przycina losowo transfer dla takich wynalazków, nawet jak się podmieni User Agent, dlatego zrobiłem skrypt, który w przypadku ograniczenia transferu spamuje zapytaniami, aż do uzyskania normalnej prędkości :wink:

Nie jest to możliwe, YouTube nie udostępnia 4K w H.264 :wink:
H.264 jest dla wersji 1080p i niżej.

Ale on flagi potrzebuje by wyłączyć pozytywnie zakończony eksperyment i najwyżej przyjąć na klatę errory „brak wspieranej wersji wideo”.

Raczej logiczne, że jak coś zdało test, to ma flagę i przełącznik (typu „wyłącznik”) do uruchamiania z konsoli usuwany z kodu.

Faktycznie wymusza mi AV1 dla 4k. Nie zauważyłem wcześniej, bo łącze które mi umożliwia tą rozdziałkę mam od niedawna dopiero.