Videos audio starting from further second, not loading audio in from first buffered data
Reported by
burakdog...@gmail.com,
Sep 14 2017
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Issue descriptionUserAgent: Mozilla/5.0 (Windows NT 6.3; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/61.0.3163.79 Safari/537.36 Example URL: Steps to reproduce the problem: 1. Download orjinal and edited video from here http://www.dosya.tc/server10/0woter/videos.zip.html 2. just play orijinal and edited video on chrome, edited video's audio has problem 3. What is the expected behavior? Synchronization on video - audio playback What went wrong? We are editing some videos to minimize the data with ffmpeg software and changing videos bitrates. In some videos audio is not starting 0. second its starting from 2. buffer's time at the start of the video. We are playing same video on chrome with flash player and we can upgrade buffer size on that player so the problem is not actualize there. Did this work before? No Is it a problem with Flash or HTML5? HTML5 Does this work in other browsers? Yes Chrome version: 61.0.3163.79 Channel: stable OS Version: 6.3 Flash Version: Contents of chrome://gpu: Note: To properly save this page, select the "Webpage, Complete" option in the Save File dialog. Graphics Feature Status Canvas: Hardware accelerated CheckerImaging: Disabled 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 unavailable Video Decode: Hardware accelerated Video Encode: Hardware accelerated WebGL: Hardware accelerated WebGL2: Hardware accelerated Driver Bug Workarounds clear_uniforms_before_first_program_use decode_encode_srgb_for_generatemipmap disable_accelerated_vpx_decode disable_delayed_copy_nv12 disable_direct_composition disable_discard_framebuffer disable_dxgi_zero_copy_video disable_framebuffer_cmaa exit_on_context_lost force_cube_complete scalarize_vec_and_mat_constructor_args texsubimage_faster_than_teximage Problems Detected GPU rasterization is blacklisted on NVidia Fermi architecture for now.: 643850 Disabled Features: gpu_rasterization Some drivers are unable to reset the D3D device in the GPU process sandbox Applied Workarounds: exit_on_context_lost TexSubImage is faster for full uploads on ANGLE Applied Workarounds: texsubimage_faster_than_teximage Clear uniforms before first program use on all platforms: 124764, 349137 Applied Workarounds: clear_uniforms_before_first_program_use Always rewrite vec/mat constructors to be consistent: 398694 Applied Workarounds: scalarize_vec_and_mat_constructor_args ANGLE crash on glReadPixels from incomplete cube map texture: 518889 Applied Workarounds: force_cube_complete Framebuffer discarding can hurt performance on non-tilers: 570897 Applied Workarounds: disable_discard_framebuffer 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 Limited enabling of Chromium GL_INTEL_framebuffer_CMAA: 535198 Applied Workarounds: disable_framebuffer_cmaa Zero-copy NV12 video displays incorrect colors on NVIDIA drivers.: 635319 Applied Workarounds: disable_dxgi_zero_copy_video Disable KHR_blend_equation_advanced until cc shaders are updated: 661715 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_vpx_decode Delayed copy NV12 displays incorrect colors on NVIDIA drivers.: 728670 Applied Workarounds: disable_delayed_copy_nv12 Native GpuMemoryBuffers have been disabled, either via about:flags or command line. Disabled Features: native_gpu_memory_buffers Checker-imaging has been disabled via finch trial or the command line. Disabled Features: checker_imaging Version Information Data exported 14.09.2017 16:38:51 Chrome version Chrome/61.0.3163.79 Operating system Windows NT 6.3.9600 Software rendering list version 13.10 Driver bug list version 10.28 ANGLE commit id 0d2ecb4ea992 2D graphics backend Skia/61 0eefc0552cfb5ac077560b7c2630c5bd475ea585- Command Line "C:\Program Files (x86)\Google\Chrome\Application\chrome.exe" --flag-switches-begin --flag-switches-end Driver Information Initialization time 41 In-process GPU false Passthrough Command Decoder false Supports overlays false Sandboxed false GPU0 VENDOR = 0x10de, DEVICE= 0x0de1 Optimus false Optimus false AMD switchable false Desktop compositing Aero Glass Diagonal Monitor Size of \\.\DISPLAY1 18.4" Diagonal Monitor Size of \\.\DISPLAY2 21.5" Driver vendor NVIDIA Driver version 22.21.13.8205 Driver date 5-1-2017 Pixel shader version 5.0 Vertex shader version 5.0 Max. MSAA samples 8 Machine model name Machine model version GL_VENDOR Google Inc. GL_RENDERER ANGLE (NVIDIA GeForce GT 430 Direct3D11 vs_5_0 ps_5_0) GL_VERSION OpenGL ES 3.0 (ANGLE 2.1.0.0d2ecb4ea992) GL_EXTENSIONS GL_ANGLE_client_arrays GL_ANGLE_depth_texture GL_ANGLE_framebuffer_blit GL_ANGLE_framebuffer_multisample GL_ANGLE_instanced_arrays GL_ANGLE_lossy_etc_decode GL_ANGLE_pack_reverse_row_order GL_ANGLE_program_cache_control GL_ANGLE_request_extension GL_ANGLE_robust_client_memory GL_ANGLE_robust_resource_initialization 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_compressed_texture GL_CHROMIUM_copy_texture GL_CHROMIUM_sync_query GL_EXT_blend_minmax GL_EXT_color_buffer_float GL_EXT_color_buffer_half_float GL_EXT_debug_marker GL_EXT_discard_framebuffer GL_EXT_disjoint_timer_query GL_EXT_draw_buffers GL_EXT_frag_depth GL_EXT_map_buffer_range 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_norm16 GL_EXT_texture_rg GL_EXT_texture_storage GL_EXT_unpack_subimage GL_KHR_debug GL_NV_EGL_stream_consumer_external GL_NV_fence GL_NV_pack_subimage GL_NV_pixel_buffer_object GL_OES_EGL_image GL_OES_EGL_image_external GL_OES_EGL_image_external_essl3 GL_OES_compressed_ETC1_RGB8_texture GL_OES_depth32 GL_OES_element_index_uint GL_OES_get_program_binary GL_OES_mapbuffer GL_OES_packed_depth_stencil GL_OES_rgb8_rgba8 GL_OES_standard_derivatives GL_OES_surfaceless_context 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_vertex_array_object Disabled Extensions GL_KHR_blend_equation_advanced GL_KHR_blend_equation_advanced_coherent Window system binding vendor Google Inc. (adapter LUID: 0000000000009bca) Window system binding version 1.4 (ANGLE 2.1.0.0d2ecb4ea992) 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_ANGLE_keyed_mutex EGL_ANGLE_surface_orientation EGL_ANGLE_direct_composition EGL_NV_post_sub_buffer EGL_KHR_create_context EGL_EXT_device_query EGL_KHR_image EGL_KHR_image_base EGL_KHR_gl_texture_2D_image EGL_KHR_gl_texture_cubemap_image EGL_KHR_gl_renderbuffer_image EGL_KHR_get_all_proc_addresses EGL_KHR_stream EGL_KHR_stream_consumer_gltexture EGL_NV_stream_consumer_gltexture_yuv EGL_ANGLE_flexible_surface_compatibility EGL_ANGLE_stream_producer_d3d_texture_nv12 EGL_ANGLE_create_context_webgl_compatibility EGL_CHROMIUM_create_context_bind_generates_resource EGL_CHROMIUM_sync_control EGL_EXT_pixel_format_float EGL_KHR_surfaceless_context EGL_ANGLE_display_texture_share_group EGL_ANGLE_create_context_client_arrays EGL_ANGLE_program_cache_control Direct rendering Yes Reset notification strategy 0x8252 GPU process crash count 0 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 R_16 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 Diagnostics ... loading ... Log Messages [4580:3304:0914/160448.079:WARNING:angle_platform_impl.cc(41)] : rx::HLSLCompiler::compileToBinary(224): C:\fakepath(65,8-56): warning X3571: pow(f, e) will not work for negative f, use abs(f) or conditionally handle negative values if you expect them C:\fakepath(76,9-41): warning X3571: pow(f, e) will not work for negative f, use abs(f) or conditionally handle negative values if you expect them GpuProcessHostUIShim: The GPU process exited normally. Everything is okay. Orijinal video created from mpeg video and it has no problem. Orijinal video has 778 total bit rate but edited video has 379 total bit rate.
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Sep 14 2017
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Sep 19 2017
Tested the issue on windows 7 & 10 using chrome latest stable M61 #61.0.3163.91 and canary M63 #63.0.3218.3 and issue is not reproduced. Both the edited and original videos are played with same qualty and audio. @ burakdoganakyildiz-- Could you please check in latest chrome stable without any extensions and flags enabled and update us with your observations. Thanks!
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Sep 19 2017
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Sep 19 2017
I m using latest version of chrome and flags are default, i tested this on 3 other computer too and our customers are having same problem with this videos on our website. Are you sure the problem not happened ? You could miss the difference because of the differend language of video. in original video speaker starts with the sentence "bir süre önce zorunlu trafik sigortasında yaşanan krizin bir benzeri şimdide sağlık sektöründe yaşanıyor. Sigorta şirketleri...". When this sentence finish videos time is 00:08 in edited video speaker starts with "sağlık sektöründe yaşanıyor. Sigorta şirketleri..." When this sentence finish videos time is 00:02 if you forward the video after 00:08 the audio - video synchronization is solved. You can listen the difference only with edited video. Windows media player is playing edited video correct. @hdpham@chromium.org Could you please try again ? Thank you.
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Sep 19 2017
Thank you for providing more feedback. Adding requester "hdodda@chromium.org" to the cc list and removing "Needs-Feedback" label. For more details visit https://www.chromium.org/issue-tracking/autotriage - Your friendly Sheriffbot
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Sep 20 2017
As per comment #5 , able to reproduce the issue on windows 7 , ubuntu 14.04 and mac os 10.12.6 using chrome M61 #61.0.3163.91 and M63 #63.0.3219.0. This is a regression issue broken in M56. Using the per-revision bisect providing the bisect results, Good build: 56.0.2924.0(Revision: 433059). Bad build: 57.0.2926.0(Revision: 433437). You are probably looking for a change made after 433074 (known good), but no later than 433075 (first known bad). CHANGELOG URL: The script might not always return single CL as suspect as some perf builds might get missing due to failure. https://chromium.googlesource.com/chromium/src/+log/acdbb3c267d8d4ea19d0faf4ef34b5179f3c58fa..cfd33cef4f1a51ba612d28504c6f76e1dfe588a6 From the CL above, assigning the issue to the concern owner @ wolenetz- Could you please check whether this is caused with respect to your change, if not please help us in assigning it to the right owner. Review-Url: https://codereview.chromium.org/2497603003 Thanks!
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Sep 20 2017
@#7 - That change is an ancient FFmpeg roll. => chcunningham@ who is working on the current FFmpeg roll to see if this is: 1) an issue with content, 2) an issue with FFmpeg, or 3) an issue with how Chrome uses FFmpeg API.
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Jan 31 2018
Is there any thing new about this bug ? |
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Comment 1 by dalecur...@chromium.org
, Sep 14 2017