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Video is corrupted after switching back to Chrome and seeking
Reported by
matthew....@gmail.com,
Dec 14 2017
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Issue descriptionUserAgent: Mozilla/5.0 (Windows NT 6.3; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/63.0.3239.84 Safari/537.36 Example URL: http://reference.dashif.org/dash.js/v2.6.4/samples/dash-if-reference-player/index.html Steps to reproduce the problem: 1. Load the page at http://reference.dashif.org/dash.js/v2.6.4/samples/dash-if-reference-player/index.html 2. In the text box, paste the link https://raw.githubusercontent.com/matthew-mahony/DashTesting/master/liveStreamVideoCorruption/liveStream.mpd and click load 3. The video will automatically start playing. Pause after a couple seconds. 4. Switch focus away from chrome 5. After a few seconds/minutes, switch back to chrome 6. Seek to another time in the video What is the expected behavior? The video should load another image. What went wrong? The video is corrupted. It becomes all green like the matrix (see attached screenshot) Did this work before? Yes 62.0.3202.94 Is it a problem with Flash or HTML5? HTML5 Does this work in other browsers? N/A Chrome version: 63.0.3239.84 Channel: stable OS Version: 8.1 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: Hardware accelerated 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 disable_larger_than_screen_overlays exit_on_context_lost force_cube_complete msaa_is_slow scalarize_vec_and_mat_constructor_args texsubimage_faster_than_teximage Problems Detected 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 On Intel GPUs MSAA performance is not acceptable for GPU rasterization: 527565 Applied Workarounds: msaa_is_slow 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 Use GL_INTEL_framebuffer_CMAA on ChromeOS: 535198 Applied Workarounds: disable_framebuffer_cmaa 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_vpx_decode Accelerated VPx decoding is hanging on some videos.: 654111 Applied Workarounds: disable_accelerated_vpx_decode Overlay sizes bigger than screen aren't accelerated on some Intel drivers: 720059 Applied Workarounds: disable_larger_than_screen_overlays Delayed copy NV12 crashes on Intel on Windows <= 8.1.: 727216 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 12/14/2017, 2:54:38 PM Chrome version Chrome/63.0.3239.84 Operating system Windows NT 6.3.9600 Software rendering list version 13.13 Driver bug list version 10.34 ANGLE commit id 9095f2b44801 2D graphics backend Skia/63 dbae7001c9805fb0a4b18fd0cbc889941cb39db4- Command Line "C:\Program Files (x86)\Google\Chrome\Application\chrome.exe" --flag-switches-begin --flag-switches-end Driver Information Initialization time 109 In-process GPU false Passthrough Command Decoder false Supports overlays false Sandboxed false GPU0 VENDOR = 0x8086, DEVICE= 0x0416 *ACTIVE* GPU1 VENDOR = 0x10de, DEVICE= 0x11b8 Optimus false Optimus false AMD switchable false Desktop compositing Aero Glass Diagonal Monitor Size of \\.\DISPLAY1 17.2" Driver vendor Intel Corporation Driver version 10.18.14.4264 Driver date 8-4-2015 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 (Intel(R) HD Graphics 4600 Direct3D11 vs_5_0 ps_5_0) GL_VERSION OpenGL ES 3.0 (ANGLE 2.1.0.9095f2b44801) 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_multiview 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_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: 000000000000996d) Window system binding version 1.4 (ANGLE 2.1.0.9095f2b44801) 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 EGL_ANGLE_robust_resource_initialization 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 Display(s) Information Info Display[2528732444] bounds=0,0 1920x1080, workarea=0,0 1920x1040, scale=1, external Color space information {primaries:BT709, transfer:IEC61966_2_1, matrix:RGB, range:FULL, icc_profile_id:0} Bits per color component 8 Bits per pixel 24 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 11 dwHeight 1080 dwRefreshRate 60 dwWHQLLevel 0 dwWidth 1920 iAdapter 0 lDriverSize 25076864 lMiniVddSize 0 szAGPStatusEnglish Enabled szAGPStatusLocalized Enabled szChipType Intel(R) HD Graphics Family szD3DStatusEnglish Enabled szD3DStatusLocalized Enabled szDACType Internal szDDIVersionEnglish 11.1 szDDIVersionLocalized 11.1 szDDStatusEnglish Enabled szDDStatusLocalized Enabled szDXVAHDEnglish Supported szDXVAModes ModeMPEG2_A ModeMPEG2_C ModeWMV9_C ModeVC1_C szDescription Intel(R) HD Graphics 4600 szDeviceId 0x0416 szDeviceIdentifier {D7B78E66-4756-11CF-F152-5802BCC2DB35} szDeviceName \\.\DISPLAY1 szDisplayMemoryEnglish 1920 MB szDisplayMemoryLocalized 1920 MB szDisplayModeEnglish 1920 x 1080 (32 bit) (60Hz) szDisplayModeLocalized 1920 x 1080 (32 bit) (60Hz) szDriverAssemblyVersion 10.18.14.4264 szDriverAttributes Final Retail szDriverDateEnglish 8/9/2015 04:52:04 szDriverDateLocalized 8/9/2015 4:52:04 AM szDriverLanguageEnglish English szDriverLanguageLocalized English szDriverModelEnglish WDDM 1.3 szDriverModelLocalized WDDM 1.3 szDriverName igdumdim64.dll,igd10iumd64.dll,igd10iumd64.dll,igdumdim32,igd10iumd32,igd10iumd32 szDriverNodeStrongName oem69.inf:5f63e534dd929195:iHSWM_w81:10.18.14.4264:pci\ven_8086&dev_0416 szDriverSignDate szDriverVersion 10.18.0014.4264 szKeyDeviceID Enum\PCI\VEN_8086&DEV_0416&SUBSYS_2255103C&REV_06 szKeyDeviceKey \Registry\Machine\System\CurrentControlSet\Control\Video\{EA184BB0-C8C1-424E-9DD8-E7FD831264E2}\0000 szManufacturer Intel Corporation szMiniVdd n/a szMiniVddDateEnglish n/a szMiniVddDateLocalized n/a szMonitorMaxRes szMonitorName Generic PnP Monitor szNotesEnglish No problems found. szNotesLocalized No problems found. szOverlayEnglish Supported szRankOfInstalledDriver 00DA2001 szRegHelpText szRevision szRevisionId 0x0006 szSubSysId 0x2255103C szTestResultD3D7English Not run szTestResultD3D7Localized Not run szTestResultD3D8English Not run szTestResultD3D8Localized Not run szTestResultD3D9English Not run szTestResultD3D9Localized Not run szTestResultDDEnglish Not run szTestResultDDLocalized Not run szVdd n/a szVendorId 0x8086 Log Messages GpuProcessHostUIShim: The GPU process exited normally. Everything is okay. Not 100% reproducible, but occurs often. This video was captured from my webcam as a live stream. I haven't been able to reproduce with non-live streamed videos. The live stream is processed with ffmpeg -> nginx RTMP server, and another ffmpeg instance reads the stream from the nginx server and saves the DASH'ed files.
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Dec 14 2017
Yes, it is, but doesn't seem to corrupt on Mac canary or stable. 00:00:00 00 origin_url http://reference.dashif.org/ 00:00:00 00 frame_url http://reference.dashif.org/dash.js/v2.6.4/samples/dash-if-reference-player/index.html 00:00:00 00 frame_title Dash JavaScript Player 00:00:00 00 url blob:http://reference.dashif.org/9da0c9f2-1c2d-457d-82dd-991577018f01 00:00:00 00 info ChunkDemuxer: buffering by DTS 00:00:00 02 pipeline_state kStarting 00:00:00 42 found_video_stream true 00:00:00 42 video_codec_name h264 00:00:00 50 found_audio_stream true 00:00:00 50 audio_codec_name aac 00:00:00 55 audio_dds false 00:00:00 55 audio_decoder FFmpegAudioDecoder 00:00:00 55 info Selected FFmpegAudioDecoder for audio decoding, config: codec: aac bytes_per_channel: 2 channel_layout: 3 channels: 2 samples_per_second: 44100 sample_format: 2 bytes_per_frame: 4 seek_preroll: 0ms codec_delay: 0 has extra data? false encrypted? false discard decoder delay? false 00:00:00 56 debug Video rendering in low delay mode. 00:00:00 56 video_dds false 00:00:00 56 video_decoder FFmpegVideoDecoder 00:00:00 56 info Selected FFmpegVideoDecoder for video decoding, config: codec: h264 format: 2 profile: h264 high 4:4:4 predictive coded size: [854,480] visible rect: [0,0,854,480] natural size: [854,480] has extra data? false encrypted? false rotation: 0° We've got another bug here issue 794215 for similar on M63+. Maybe something specific to SIMD for some processors, but not others. Will send this off to ffmpeg folk.
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Dec 14 2017
@dalecur, fyi, it is 4:4:4 lossless encoding. Not pretty common.
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Dec 14 2017
Dan confirmed this happens with ffplay, so seems a bug in ffmpeg. I believe he's trying to bisect now and we'll see if there's an easy revert or if we'll need to have Michael take a look.
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Dec 14 2017
Just did some more tests. Although chunks starts with keyframe, analyzing some of the chunks with ffmpeg I see issues while decoding some macroblocks. Independently of that, it is weird I could only reproduce the issue when resuming playback and only when I switch from chrome to another app and then to chrome again after a few seconds. Same issue is reproducible in other players, like shaka-player.
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Dec 14 2017
#4: Actually, I was not able to reproduce this with ffplay. Only the CNS issue is reproducible. The two bugs seem related though, in that they are similar-looking corruption of 4:4:4 H.264 content. The issue in this bug is triggered by suspend/resume. It does reproduce for src= playback.
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Dec 14 2017
Ah yes, sorry I wasn't clear. I think these are likely the same issue, but you're correct that only the video in issue 794215 triggers this always.
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Dec 14 2017
Confirmed to have the same resolution as issue 794215, merging.
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Dec 14 2017
Swapping direction due to restricted view.
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Dec 14 2017
Issue 794215 has been merged into this issue.
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Dec 14 2017
This issue is resolved by reverting FFmpeg commit 840b41b2a643fc8f0617c0370125a19c02c6b586. It seems that old libx264 versions produced corrupt files, and this patch fixed FFmpeg and added a fallback path. However, the fallback detection does not work without an SEI NALU, and this file does not have one. For files with no SEI, we can basically choose to always assume broken x264 encoding, or assume correct H.264 encoding. It's not immediately clear what the correct long-term solution is. For now, the decision is to assume correct encoding. Re-encoding affected files with a libx264 newer than 2014 is the best fix.
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Dec 14 2017
Additional context links with discussion from ffmpeg developers: https://github.com/mpv-player/mpv/issues/4559 https://github.com/mpv-player/mpv/issues/4807
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Dec 15 2017
I didn't realize the encoding was uncommon, I let ffmpeg choose the default. After adding the arguments "-pix_fmt yuv420p" to the ffmpeg streaming process, the video codec is avc1.64001f, and I can't reproduce this issue.
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Jan 9 2018
Issue 798778 has been merged into this issue.
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Jan 10 2018
using a format of yuv420p and a Constant Rate Factor of 18 for encoding has worked for me. Though this is still an issue with chrome because I did not need these encoding options in previous builds. |
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Comment 1 by dalecur...@chromium.org
, Dec 14 2017