AudioRendererImpl does not support discontinuities in the audio stream.
Reported by
sgunder...@bigfoot.com,
Jul 12 2017
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Issue descriptionUserAgent: Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/59.0.3071.115 Safari/537.36 Example URL: http://storage.sesse.net/looping.mp4 Steps to reproduce the problem: Play the video, watch the audio go out of sync after the cut at 29:53 (and even more after the second cut). What is the expected behavior? What went wrong? I made the attached video to demonstrate the problem, but I suppose it's more generic than this one. The gist of the issue is that the encoder was trying to splice two files (I've simulated this by looping the same clip), and in the process ended up with a section without audio. Thus, the audio pts jumps from 1792.913542 to 1794.022292. VLC, mpv and Firefox all do the only reasonable thing here and stop the audio stream for a while, so as to maintain lipsync after the cut. Chrome (both on Linux and Android; haven't tried Windows) just keeps on playing the audio, which means it goes an extra second out of sync for each time the clip loops. Pause/unpause doesn't fix the problem, but seeking more than a few seconds away seems to do (small seeks don't). Did this work before? N/A Is it a problem with Flash or HTML5? HTML5 Does this work in other browsers? Yes Chrome version: 59.0.3071.115 Channel: stable OS Version: Debian GNU/Linux 9 Flash Version: Contents of chrome://gpu: Graphics Feature Status Canvas: Hardware accelerated Flash: Hardware accelerated Flash Stage3D: Hardware accelerated Flash Stage3D Baseline profile: Hardware accelerated Compositing: Hardware accelerated Multiple Raster Threads: Enabled Native GpuMemoryBuffers: Software only. Hardware acceleration disabled Rasterization: Software only. Hardware acceleration disabled Video Decode: Software only, hardware acceleration unavailable Video Encode: Software only, hardware acceleration unavailable WebGL: Hardware accelerated WebGL2: Hardware accelerated Driver Bug Workarounds adjust_src_dst_region_for_blitframebuffer clear_uniforms_before_first_program_use count_all_in_varyings_packing disable_framebuffer_cmaa disable_post_sub_buffers_for_onscreen_surfaces msaa_is_slow scalarize_vec_and_mat_constructor_args Problems Detected Accelerated video decode is unavailable on Linux: 137247 Disabled Features: accelerated_video_decode Accelerated video encode is unavailable on Linux Disabled Features: accelerated_video_encode Clear uniforms before first program use on all platforms: 124764, 349137 Applied Workarounds: clear_uniforms_before_first_program_use Mesa drivers in Linux handle varyings without static use incorrectly: 333885 Applied Workarounds: count_all_in_varyings_packing Disable partial swaps on Mesa drivers (detected with GL_RENDERER): 339493 Applied Workarounds: disable_post_sub_buffers_for_onscreen_surfaces Always rewrite vec/mat constructors to be consistent: 398694 Applied Workarounds: scalarize_vec_and_mat_constructor_args On Intel GPUs MSAA performance is not acceptable for GPU rasterization: 527565 Applied Workarounds: msaa_is_slow Timer queries crash on Intel GPUs on Linux: 540543, 576991 Limited enabling of Chromium GL_INTEL_framebuffer_CMAA: 535198 Applied Workarounds: disable_framebuffer_cmaa Disable partial swaps on Mesa drivers (detected with GL_VERSION): 339493 Applied Workarounds: disable_post_sub_buffers_for_onscreen_surfaces adjust src/dst region if blitting pixels outside read framebuffer on Linux Intel: 664740 Applied Workarounds: adjust_src_dst_region_for_blitframebuffer Disable KHR_blend_equation_advanced until cc shaders are updated: 661715 Accelerated rasterization has been disabled, either via blacklist, about:flags or the command line. Disabled Features: rasterization Native GpuMemoryBuffers have been disabled, either via about:flags or command line. Disabled Features: native_gpu_memory_buffers Version Information Data exported 13.7.2017, 00:24:06 Chrome version Chrome/59.0.3071.115 Operating system Linux 4.11.8 Software rendering list version 13.8 Driver bug list version 10.102 ANGLE commit id a9042d3c1952 2D graphics backend Skia/59 ef6f9c65527412ec4057ea0551f2e051beb94d32 Command Line Args --flag-switches-begin --flag-switches-end Driver Information Initialization time 18 In-process GPU false Passthrough Command Decoder false Supports overlays false Sandboxed true GPU0 VENDOR = 0x8086, DEVICE= 0x0a16 Optimus false Optimus false AMD switchable false Driver vendor Mesa Driver version 17.1.3 Driver date Pixel shader version 4.50 Vertex shader version 4.50 Max. MSAA samples 8 Machine model name Machine model version GL_VENDOR Intel Open Source Technology Center GL_RENDERER Mesa DRI Intel(R) Haswell Mobile GL_VERSION 4.5 (Core Profile) Mesa 17.1.3 GL_EXTENSIONS GL_3DFX_texture_compression_FXT1 GL_AMD_conservative_depth GL_AMD_draw_buffers_blend GL_AMD_seamless_cubemap_per_texture GL_AMD_shader_trinary_minmax GL_AMD_vertex_shader_layer GL_AMD_vertex_shader_viewport_index GL_ANGLE_texture_compression_dxt3 GL_ANGLE_texture_compression_dxt5 GL_APPLE_object_purgeable GL_ARB_ES2_compatibility GL_ARB_ES3_1_compatibility GL_ARB_ES3_compatibility GL_ARB_arrays_of_arrays GL_ARB_base_instance GL_ARB_blend_func_extended GL_ARB_buffer_storage GL_ARB_clear_buffer_object GL_ARB_clear_texture GL_ARB_clip_control GL_ARB_compressed_texture_pixel_storage GL_ARB_compute_shader GL_ARB_conditional_render_inverted GL_ARB_conservative_depth GL_ARB_copy_buffer GL_ARB_copy_image GL_ARB_cull_distance GL_ARB_debug_output GL_ARB_depth_buffer_float GL_ARB_depth_clamp GL_ARB_derivative_control GL_ARB_direct_state_access GL_ARB_draw_buffers GL_ARB_draw_buffers_blend GL_ARB_draw_elements_base_vertex GL_ARB_draw_indirect GL_ARB_draw_instanced GL_ARB_enhanced_layouts GL_ARB_explicit_attrib_location GL_ARB_explicit_uniform_location GL_ARB_fragment_coord_conventions GL_ARB_fragment_layer_viewport GL_ARB_fragment_shader GL_ARB_framebuffer_no_attachments GL_ARB_framebuffer_object GL_ARB_framebuffer_sRGB GL_ARB_get_program_binary GL_ARB_get_texture_sub_image GL_ARB_gpu_shader5 GL_ARB_gpu_shader_fp64 GL_ARB_half_float_pixel GL_ARB_half_float_vertex GL_ARB_instanced_arrays GL_ARB_internalformat_query GL_ARB_internalformat_query2 GL_ARB_invalidate_subdata GL_ARB_map_buffer_alignment GL_ARB_map_buffer_range GL_ARB_multi_bind GL_ARB_multi_draw_indirect GL_ARB_occlusion_query2 GL_ARB_pipeline_statistics_query GL_ARB_pixel_buffer_object GL_ARB_point_sprite GL_ARB_program_interface_query GL_ARB_provoking_vertex GL_ARB_query_buffer_object GL_ARB_robust_buffer_access_behavior GL_ARB_robustness GL_ARB_sample_shading GL_ARB_sampler_objects GL_ARB_seamless_cube_map GL_ARB_seamless_cubemap_per_texture GL_ARB_separate_shader_objects GL_ARB_shader_atomic_counter_ops GL_ARB_shader_atomic_counters GL_ARB_shader_bit_encoding GL_ARB_shader_clock GL_ARB_shader_draw_parameters GL_ARB_shader_image_load_store GL_ARB_shader_image_size GL_ARB_shader_objects GL_ARB_shader_precision GL_ARB_shader_storage_buffer_object GL_ARB_shader_subroutine GL_ARB_shader_texture_image_samples GL_ARB_shader_texture_lod GL_ARB_shader_viewport_layer_array GL_ARB_shading_language_420pack GL_ARB_shading_language_packing GL_ARB_stencil_texturing GL_ARB_sync GL_ARB_tessellation_shader GL_ARB_texture_barrier GL_ARB_texture_buffer_object GL_ARB_texture_buffer_object_rgb32 GL_ARB_texture_buffer_range GL_ARB_texture_compression_bptc GL_ARB_texture_compression_rgtc GL_ARB_texture_cube_map_array GL_ARB_texture_float GL_ARB_texture_gather GL_ARB_texture_mirror_clamp_to_edge GL_ARB_texture_multisample GL_ARB_texture_non_power_of_two GL_ARB_texture_query_levels GL_ARB_texture_query_lod GL_ARB_texture_rectangle GL_ARB_texture_rg GL_ARB_texture_rgb10_a2ui GL_ARB_texture_stencil8 GL_ARB_texture_storage GL_ARB_texture_storage_multisample GL_ARB_texture_swizzle GL_ARB_texture_view GL_ARB_transform_feedback2 GL_ARB_transform_feedback3 GL_ARB_transform_feedback_instanced GL_ARB_transform_feedback_overflow_query GL_ARB_uniform_buffer_object GL_ARB_vertex_array_bgra GL_ARB_vertex_array_object GL_ARB_vertex_attrib_64bit GL_ARB_vertex_attrib_binding GL_ARB_vertex_shader GL_ARB_vertex_type_10f_11f_11f_rev GL_ARB_vertex_type_2_10_10_10_rev GL_ARB_viewport_array GL_ATI_blend_equation_separate GL_ATI_texture_float GL_EXT_abgr GL_EXT_blend_equation_separate GL_EXT_draw_buffers2 GL_EXT_draw_instanced GL_EXT_framebuffer_blit GL_EXT_framebuffer_multisample GL_EXT_framebuffer_multisample_blit_scaled GL_EXT_framebuffer_sRGB GL_EXT_packed_depth_stencil GL_EXT_packed_float GL_EXT_pixel_buffer_object GL_EXT_polygon_offset_clamp GL_EXT_provoking_vertex GL_EXT_shader_integer_mix GL_EXT_shader_samples_identical GL_EXT_texture_array GL_EXT_texture_compression_dxt1 GL_EXT_texture_compression_rgtc GL_EXT_texture_filter_anisotropic GL_EXT_texture_integer GL_EXT_texture_sRGB GL_EXT_texture_sRGB_decode GL_EXT_texture_shared_exponent GL_EXT_texture_snorm GL_EXT_texture_swizzle GL_EXT_transform_feedback GL_EXT_vertex_array_bgra GL_IBM_multimode_draw_arrays GL_INTEL_performance_query GL_KHR_context_flush_control GL_KHR_debug GL_KHR_robust_buffer_access_behavior GL_KHR_robustness GL_MESA_pack_invert GL_MESA_shader_integer_functions GL_MESA_texture_signed_rgba GL_NV_conditional_render GL_NV_depth_clamp GL_NV_packed_depth_stencil GL_NV_texture_barrier GL_OES_EGL_image GL_S3_s3tc Disabled Extensions GL_ARB_timer_query GL_EXT_timer_query GL_KHR_blend_equation_advanced GL_KHR_blend_equation_advanced_coherent Window system binding vendor SGI Window system binding version 1.4 Window system binding extensions GLX_ARB_create_context GLX_ARB_create_context_profile GLX_ARB_create_context_robustness GLX_ARB_fbconfig_float GLX_ARB_framebuffer_sRGB GLX_ARB_multisample GLX_EXT_create_context_es_profile GLX_EXT_create_context_es2_profile GLX_EXT_fbconfig_packed_float GLX_EXT_framebuffer_sRGB GLX_EXT_import_context GLX_EXT_libglvnd 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 Window manager Mutter (Muffin) XDG_CURRENT_DESKTOP X-Cinnamon GDMSESSION cinnamon Compositing manager Yes Direct rendering Yes Reset notification strategy 0x8252 GPU process crash count 0 System visual ID 33 RGBA visual ID 128 Compositor Information Tile Update Mode One-copy Partial Raster Enabled GpuMemoryBuffers Status ATC Software only ATCIA Software only DXT1 Software only DXT5 Software only ETC1 Software only R_8 Software only RG_88 Software only BGR_565 Software only RGBA_4444 Software only RGBX_8888 Software only RGBA_8888 Software only BGRX_8888 Software only BGRA_8888 Software only RGBA_F16 Software only YVU_420 Software only YUV_420_BIPLANAR Software only UYVY_422 Software only Log Messages [12779:12779:0710/181414.747187:ERROR:sync_control_vsync_provider.cc(64)] : glXGetSyncValuesOML should not return TRUE with a media stream counter of 0. [12779:12779:0710/214509.773567:ERROR:gles2_cmd_decoder.cc(17652)] : [.DisplayCompositor-0x2b9f2211100]GL ERROR :GL_INVALID_OPERATION : glCreateAndConsumeTextureCHROMIUM: invalid mailbox name [12779:12779:0710/214509.774081:ERROR:gles2_cmd_decoder.cc(9709)] : [.DisplayCompositor-0x2b9f2211100]RENDER WARNING: texture bound to texture unit 0 is not renderable. It maybe non-power-of-2 and have incompatible texture filtering. [12779:12779:0710/214509.774801:ERROR:gles2_cmd_decoder.cc(17652)] : [.DisplayCompositor-0x2b9f2211100]GL ERROR :GL_INVALID_OPERATION : glCreateAndConsumeTextureCHROMIUM: invalid mailbox name [12779:12779:0710/214509.775057:ERROR:gles2_cmd_decoder.cc(9709)] : [.DisplayCompositor-0x2b9f2211100]RENDER WARNING: texture bound to texture unit 0 is not renderable. It maybe non-power-of-2 and have incompatible texture filtering. [12779:12779:0710/214509.775489:ERROR:gles2_cmd_decoder.cc(17652)] : [.DisplayCompositor-0x2b9f2211100]GL ERROR :GL_INVALID_OPERATION : glCreateAndConsumeTextureCHROMIUM: invalid mailbox name [12779:12779:0710/214509.775712:ERROR:gles2_cmd_decoder.cc(9709)] : [.DisplayCompositor-0x2b9f2211100]RENDER WARNING: texture bound to texture unit 0 is not renderable. It maybe non-power-of-2 and have incompatible texture filtering. [12779:12779:0710/224007.354541:ERROR:gles2_cmd_decoder.cc(17652)] : [.DisplayCompositor-0x2b9f2211100]GL ERROR :GL_INVALID_OPERATION : glCreateAndConsumeTextureCHROMIUM: invalid mailbox name [12779:12779:0710/224007.354621:ERROR:gles2_cmd_decoder.cc(9709)] : [.DisplayCompositor-0x2b9f2211100]RENDER WARNING: texture bound to texture unit 0 is not renderable. It maybe non-power-of-2 and have incompatible texture filtering. [12779:12779:0710/224007.354665:ERROR:gles2_cmd_decoder.cc(17652)] : [.DisplayCompositor-0x2b9f2211100]GL ERROR :GL_INVALID_OPERATION : glCreateAndConsumeTextureCHROMIUM: invalid mailbox name [12779:12779:0710/224007.354699:ERROR:gles2_cmd_decoder.cc(9709)] : [.DisplayCompositor-0x2b9f2211100]RENDER WARNING: texture bound to texture unit 0 is not renderable. It maybe non-power-of-2 and have incompatible texture filtering. [12779:12779:0710/224007.354787:ERROR:gles2_cmd_decoder.cc(17652)] : [.DisplayCompositor-0x2b9f2211100]GL ERROR :GL_INVALID_OPERATION : glCreateAndConsumeTextureCHROMIUM: invalid mailbox name [12779:12779:0710/224007.354843:ERROR:gles2_cmd_decoder.cc(9709)] : [.DisplayCompositor-0x2b9f2211100]RENDER WARNING: texture bound to texture unit 0 is not renderable. It maybe non-power-of-2 and have incompatible texture filtering. [12779:12779:0710/224007.354871:ERROR:gles2_cmd_decoder.cc(17652)] : [.DisplayCompositor-0x2b9f2211100]GL ERROR :GL_INVALID_OPERATION : glCreateAndConsumeTextureCHROMIUM: invalid mailbox name [12779:12779:0710/224007.354887:ERROR:gles2_cmd_decoder.cc(9709)] : [.DisplayCompositor-0x2b9f2211100]RENDER WARNING: texture bound to texture unit 0 is not renderable. It maybe non-power-of-2 and have incompatible texture filtering. [12779:12779:0711/145612.753577:ERROR:gles2_cmd_decoder.cc(17652)] : [.DisplayCompositor-0x2b9f2211100]GL ERROR :GL_INVALID_OPERATION : glCreateAndConsumeTextureCHROMIUM: invalid mailbox name [12779:12779:0711/145612.753625:ERROR:gles2_cmd_decoder.cc(9709)] : [.DisplayCompositor-0x2b9f2211100]RENDER WARNING: texture bound to texture unit 0 is not renderable. It maybe non-power-of-2 and have incompatible texture filtering. [12779:12779:0711/145612.753784:ERROR:gles2_cmd_decoder.cc(17652)] : [.DisplayCompositor-0x2b9f2211100]GL ERROR :GL_INVALID_OPERATION : glCreateAndConsumeTextureCHROMIUM: invalid mailbox name [12779:12779:0711/145612.753805:ERROR:gles2_cmd_decoder.cc(9709)] : [.DisplayCompositor-0x2b9f2211100]RENDER WARNING: texture bound to texture unit 0 is not renderable. It maybe non-power-of-2 and have incompatible texture filtering. [12779:12779:0711/145612.753833:ERROR:gles2_cmd_decoder.cc(17652)] : [.DisplayCompositor-0x2b9f2211100]GL ERROR :GL_INVALID_OPERATION : glCreateAndConsumeTextureCHROMIUM: invalid mailbox name [12779:12779:0711/145612.753855:ERROR:gles2_cmd_decoder.cc(9709)] : [.DisplayCompositor-0x2b9f2211100]RENDER WARNING: texture bound to texture unit 0 is not renderable. It maybe non-power-of-2 and have incompatible texture filtering. [12779:12779:0711/145612.753884:ERROR:gles2_cmd_decoder.cc(17652)] : [.DisplayCompositor-0x2b9f2211100]GL ERROR :GL_INVALID_OPERATION : glCreateAndConsumeTextureCHROMIUM: invalid mailbox name [12779:12779:0711/145612.753905:ERROR:gles2_cmd_decoder.cc(9709)] : [.DisplayCompositor-0x2b9f2211100]RENDER WARNING: texture bound to texture unit 0 is not renderable. It maybe non-power-of-2 and have incompatible texture filtering. [12779:12779:0711/145612.753935:ERROR:gles2_cmd_decoder.cc(17652)] : [.DisplayCompositor-0x2b9f2211100]GL ERROR :GL_INVALID_OPERATION : glCreateAndConsumeTextureCHROMIUM: invalid mailbox name [12779:12779:0711/145612.753957:ERROR:gles2_cmd_decoder.cc(9709)] : [.DisplayCompositor-0x2b9f2211100]RENDER WARNING: texture bound to texture unit 0 is not renderable. It maybe non-power-of-2 and have incompatible texture filtering. [12779:12779:0711/145612.753986:ERROR:gles2_cmd_decoder.cc(17652)] : [.DisplayCompositor-0x2b9f2211100]GL ERROR :GL_INVALID_OPERATION : glCreateAndConsumeTextureCHROMIUM: invalid mailbox name [12779:12779:0711/145612.754008:ERROR:gles2_cmd_decoder.cc(9709)] : [.DisplayCompositor-0x2b9f2211100]RENDER WARNING: texture bound to texture unit 0 is not renderable. It maybe non-power-of-2 and have incompatible texture filtering. [12779:12779:0711/145612.754036:ERROR:gles2_cmd_decoder.cc(17652)] : [.DisplayCompositor-0x2b9f2211100]GL ERROR :GL_INVALID_OPERATION : glCreateAndConsumeTextureCHROMIUM: invalid mailbox name [12779:12779:0711/145612.754057:ERROR:gles2_cmd_decoder.cc(9709)] : [.DisplayCompositor-0x2b9f2211100]RENDER WARNING: texture bound to texture unit 0 is not renderable. It maybe non-power-of-2 and have incompatible texture filtering. [12779:12779:0711/145612.754082:ERROR:gles2_cmd_decoder.cc(17652)] : [.DisplayCompositor-0x2b9f2211100]GL ERROR :GL_INVALID_OPERATION : glCreateAndConsumeTextureCHROMIUM: invalid mailbox name [12779:12779:0711/145612.754100:ERROR:gles2_cmd_decoder.cc(9709)] : [.DisplayCompositor-0x2b9f2211100]RENDER WARNING: texture bound to texture unit 0 is not renderable. It maybe non-power-of-2 and have incompatible texture filtering. [12779:12779:0711/145612.754127:ERROR:gles2_cmd_decoder.cc(17652)] : [.DisplayCompositor-0x2b9f2211100]GL ERROR :GL_INVALID_OPERATION : glCreateAndConsumeTextureCHROMIUM: invalid mailbox name [12779:12779:0711/145612.754146:ERROR:gles2_cmd_decoder.cc(9709)] : [.DisplayCompositor-0x2b9f2211100]RENDER WARNING: texture bound to texture unit 0 is not renderable. It maybe non-power-of-2 and have incompatible texture filtering. [12779:12779:0711/145612.754167:ERROR:gles2_cmd_decoder.cc(17652)] : [.DisplayCompositor-0x2b9f2211100]GL ERROR :GL_INVALID_OPERATION : glCreateAndConsumeTextureCHROMIUM: invalid mailbox name [12779:12779:0711/145612.754183:ERROR:gles2_cmd_decoder.cc(9709)] : [.DisplayCompositor-0x2b9f2211100]RENDER WARNING: texture bound to texture unit 0 is not renderable. It maybe non-power-of-2 and have incompatible texture filtering. [12779:12779:0711/145612.754210:ERROR:gles2_cmd_decoder.cc(17652)] : [.DisplayCompositor-0x2b9f2211100]GL ERROR :GL_INVALID_OPERATION : glCreateAndConsumeTextureCHROMIUM: invalid mailbox name [12779:12779:0711/145612.754227:ERROR:gles2_cmd_decoder.cc(9709)] : [.DisplayCompositor-0x2b9f2211100]RENDER WARNING: texture bound to texture unit 0 is not renderable. It maybe non-power-of-2 and have incompatible texture filtering. [12779:12779:0711/145612.754254:ERROR:gles2_cmd_decoder.cc(17652)] : [.DisplayCompositor-0x2b9f2211100]GL ERROR :GL_INVALID_OPERATION : glCreateAndConsumeTextureCHROMIUM: invalid mailbox name [12779:12779:0711/145612.754273:ERROR:gles2_cmd_decoder.cc(9709)] : [.DisplayCompositor-0x2b9f2211100]RENDER WARNING: texture bound to texture unit 0 is not renderable. It maybe non-power-of-2 and have incompatible texture filtering. [12779:12779:0711/145612.754293:ERROR:gles2_cmd_decoder.cc(17652)] : [.DisplayCompositor-0x2b9f2211100]GL ERROR :GL_INVALID_OPERATION : glCreateAndConsumeTextureCHROMIUM: invalid mailbox name [12779:12779:0711/145612.754311:ERROR:gles2_cmd_decoder.cc(9709)] : [.DisplayCompositor-0x2b9f2211100]RENDER WARNING: texture bound to texture unit 0 is not renderable. It maybe non-power-of-2 and have incompatible texture filtering. [12779:12779:0711/145612.754336:ERROR:gles2_cmd_decoder.cc(17652)] : [.DisplayCompositor-0x2b9f2211100]GL ERROR :GL_INVALID_OPERATION : glCreateAndConsumeTextureCHROMIUM: invalid mailbox name [12779:12779:0711/145612.754354:ERROR:gles2_cmd_decoder.cc(9709)] : [.DisplayCompositor-0x2b9f2211100]RENDER WARNING: texture bound to texture unit 0 is not renderable. It maybe non-power-of-2 and have incompatible texture filtering. [12779:12779:0711/145612.754375:ERROR:gles2_cmd_decoder.cc(17652)] : [.DisplayCompositor-0x2b9f2211100]GL ERROR :GL_INVALID_OPERATION : glCreateAndConsumeTextureCHROMIUM: invalid mailbox name [12779:12779:0711/145612.754390:ERROR:gles2_cmd_decoder.cc(9709)] : [.DisplayCompositor-0x2b9f2211100]RENDER WARNING: texture bound to texture unit 0 is not renderable. It maybe non-power-of-2 and have incompatible texture filtering. [12779:12779:0711/145612.754417:ERROR:gles2_cmd_decoder.cc(17652)] : [.DisplayCompositor-0x2b9f2211100]GL ERROR :GL_INVALID_OPERATION : glCreateAndConsumeTextureCHROMIUM: invalid mailbox name [12779:12779:0711/145612.754435:ERROR:gles2_cmd_decoder.cc(9709)] : [.DisplayCompositor-0x2b9f2211100]RENDER WARNING: texture bound to texture unit 0 is not renderable. It maybe non-power-of-2 and have incompatible texture filtering. [12779:12779:0711/145612.754454:ERROR:gles2_cmd_decoder.cc(17652)] : [.DisplayCompositor-0x2b9f2211100]GL ERROR :GL_INVALID_OPERATION : glCreateAndConsumeTextureCHROMIUM: invalid mailbox name [12779:12779:0711/145612.754470:ERROR:gles2_cmd_decoder.cc(9709)] : [.DisplayCompositor-0x2b9f2211100]RENDER WARNING: texture bound to texture unit 0 is not renderable. It maybe non-power-of-2 and have incompatible texture filtering. [12779:12779:0711/145612.754496:ERROR:gles2_cmd_decoder.cc(17652)] : [.DisplayCompositor-0x2b9f2211100]GL ERROR :GL_INVALID_OPERATION : glCreateAndConsumeTextureCHROMIUM: invalid mailbox name [12779:12779:0711/145612.754515:ERROR:gles2_cmd_decoder.cc(9709)] : [.DisplayCompositor-0x2b9f2211100]RENDER WARNING: texture bound to texture unit 0 is not renderable. It maybe non-power-of-2 and have incompatible texture filtering. [12779:12779:0711/163055.828206:ERROR:gles2_cmd_decoder.cc(9703)] : [.Offscreen-For-WebGL-0x1361c8e5e300]RENDER WARNING: there is no texture bound to the unit 0 [12779:12779:0711/163055.828293:ERROR:gles2_cmd_decoder.cc(9703)] : [.Offscreen-For-WebGL-0x1361c8e5e300]RENDER WARNING: there is no texture bound to the unit 0 [12779:12779:0712/212639.267197:ERROR:gles2_cmd_decoder.cc(9703)] : [.Offscreen-For-WebGL-0x1361c9025500]RENDER WARNING: there is no texture bound to the unit 0 [12779:12779:0712/212639.267289:ERROR:gles2_cmd_decoder.cc(9703)] : [.Offscreen-For-WebGL-0x1361c9025500]RENDER WARNING: there is no texture bound to the unit 0
,
Jul 13 2017
FWIW, it really works for me in Firefox/Linux, but I haven't tried Firefox on Windows or Mac. I believe Firefox has differing media stacks depending on the platform.
,
Jul 13 2017
Yeah we definitely don't handle discontinuities in the audio timeline since we don't trust audio timestamps. Instead the clock is driven by the number of played out audio frames. We do detect and print warnings for this in chrome://media-internals, https://cs.chromium.org/chromium/src/media/filters/audio_timestamp_validator.h
,
Jul 13 2017
I remember back when the validator was introduced we discussed (and decided against) resetting the audio clock upon detecting large gaps. But I can't recall what the specific reasoning. For instance, what if we reset the clock base timestamp to be that from audio packet metadata upon detecting a gap >= 50msec?
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Jul 13 2017
All of this is detected at different levels so it's a bit hard to do that I think. You're detecting the gap prior to decode, post-decode the timestamp is destroyed by AudioDiscardHelper in favor of one based on decoded frames. I'm not against filling the gap with silence since that's likely more obvious that the stream has an error then slight av sync issues. I just don't think there's an easy way to do that given the current setup. @sgunderson: Unfortunately timestamps are often not precise enough (millisecond only duration) to avoid accumulated errors over the lifetime of the playback. Especially in cases where MSE is used and clients are specifying splices or timestamp offsets with microsecond precision.
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Jul 13 2017
@sgunderson: what is the backstory for how this sort of file came about? Up until now, the files I've seen with audio gaps were created by mistake - creators didn't mean to introduce gaps.
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Jul 13 2017
@chcunningham: It comes out of my transcoder application. (It's really a live stream, but I recorded to disk for easier testing.) What's generally happening is that the transcoder loses contact with the source, either because the source died or the network comes up again. Then when it's reconnecting, you have no guarantee of continuity; it doesn't try to resample or insert silence to compensate. You'd see basically the same thing if joining two video files together with the ffmpeg concat filter.
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Jul 18 2017
Thanks for the context.
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Jul 18
This issue has been Available for over a year. If it's no longer important or seems unlikely to be fixed, please consider closing it out. If it is important, please re-triage the issue. Sorry for the inconvenience if the bug really should have been left as Available. For more details visit https://www.chromium.org/issue-tracking/autotriage - Your friendly Sheriffbot
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Jul 18
I'm not opposed to silence filling here, that's still a highly noticeable issue, so leaving as available. |
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Comment 1 by brajkumar@chromium.org
, Jul 13 2017Status: Untriaged (was: Unconfirmed)