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Status: Assigned
EstimatedDays: ----
NextAction: ----
OS: Mac
Pri: 2
Type: Bug

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Issue 755109: Video decoder crashes or freezes on OS X

Reported by, Aug 14 2017

Issue description

UserAgent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_12_6) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/60.0.3112.90 Safari/537.36

Example URL:

Steps to reproduce the problem:
1. Play video at URL above

What is the expected behavior?
Video should play completely, without freezes or decoder crashes.

What went wrong?
Video playback stops after 12 frames.

Checking chrome://media-internals shows a video decode error, the log is attached.

With hardware acceleration disabled in chrome://flags the video does play without the decoder crashing, but instead freezes for 12 frames.

Did this work before? N/A 

Is it a problem with Flash or HTML5? N/A

Does this work in other browsers? N/A

Chrome version: 60.0.3112.90  Channel: stable
OS Version: OS X 10.12.6
Flash Version: 

Contents of chrome://gpu: 
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: Hardware accelerated
Rasterization: Hardware accelerated
Video Decode: Software only. Hardware acceleration disabled
Video Encode: Hardware accelerated
WebGL: Hardware accelerated
WebGL2: Hardware accelerated
Driver Bug Workarounds
Problems Detected
Multisampling is buggy on OSX when multiple monitors are connected: 237931
Applied Workarounds: disable_multimonitor_multisampling
Unfold short circuit on Mac OS X: 307751
Applied Workarounds: unfold_short_circuit_as_ternary_operation
Always rewrite vec/mat constructors to be consistent: 398694
Applied Workarounds: scalarize_vec_and_mat_constructor_args
Mac drivers handle struct scopes incorrectly: 403957
Applied Workarounds: regenerate_struct_names
On Intel GPUs MSAA performance is not acceptable for GPU rasterization: 527565
Applied Workarounds: msaa_is_slow
glGenerateMipmap fails if the zero texture level is not set on some Mac drivers: 560499
Applied Workarounds: set_zero_level_before_generating_mipmap
Pack parameters work incorrectly with pack buffer bound: 563714
Applied Workarounds: pack_parameters_workaround_with_pack_buffer
Alignment works incorrectly with unpack buffer bound: 563714
Applied Workarounds: unpack_alignment_workaround_with_unpack_buffer
copyTexImage2D fails when reading from IOSurface on multiple GPU types.: 581777
Applied Workarounds: use_intermediary_for_copy_texture_image
Multisample renderbuffers with format GL_RGB8 have performance issues on Intel GPUs.: 607130
Applied Workarounds: disable_webgl_rgb_multisampling_usage
Limited enabling of Chromium GL_INTEL_framebuffer_CMAA: 535198
Applied Workarounds: disable_framebuffer_cmaa
glGetFragData{Location|Index} works incorrectly on Max: 638340
Applied Workarounds: get_frag_data_info_bug
glResumeTransformFeedback works incorrectly on Intel GPUs: 638514
Applied Workarounds: rebind_transform_feedback_before_resume
Result of abs(i) where i is an integer in vertex shader is wrong: 642227
Applied Workarounds: emulate_abs_int_function
Rewrite texelFetchOffset to texelFetch for Intel Mac: 642605
Applied Workarounds: rewrite_texelfetchoffset_to_texelfetch
Rewrite condition in for and while loops for Intel Mac: 644669
Applied Workarounds: add_and_true_to_loop_condition
Emulate GLSL function isnan() on Intel Mac: 650547
Applied Workarounds: emulate_isnan_on_float
Decode and encode before generateMipmap for srgb format textures on macosx: 634519
Applied Workarounds: decode_encode_srgb_for_generatemipmap
Init first two levels before CopyTexImage2D for cube map texture on Intel Mac 10.12: 648197
Applied Workarounds: init_two_cube_map_levels_before_copyteximage
Insert statements to reference all members in unused std140/shared blocks on Mac: 618464
Applied Workarounds: use_unused_standard_shared_blocks
Tex(Sub)Image3D performs incorrectly when uploading from unpack buffer with GL_UNPACK_IMAGE_HEIGHT greater than zero on Intel Macs: 654258
Applied Workarounds: unpack_image_height_workaround_with_unpack_buffer
adjust src/dst region if blitting pixels outside read framebuffer on Mac: 644740
Applied Workarounds: adjust_src_dst_region_for_blitframebuffer
Mac driver GL 4.1 requires invariant and centroid to match between shaders: 639760, 641129
Applied Workarounds: remove_invariant_and_centroid_for_essl3
Disable KHR_blend_equation_advanced until cc shaders are updated: 661715
Accelerated video decode has been disabled, either via blacklist, about:flags or the command line.
Disabled Features: video_decode
Checker-imaging has been disabled via finch trial or the command line.
Disabled Features: checker_imaging
Version Information
Data exported	14/08/2017, 13:43:16
Chrome version	Chrome/60.0.3112.90
Operating system	Mac OS X 10.12.6
Software rendering list version	13.8
Driver bug list version	10.93
ANGLE commit id	3e6a61fecba9
2D graphics backend	Skia/60 d1f2d15b36f6a6a9d199581b998a7ca924a1f1a8-
Command Line	/Applications/Google Chrome --flag-switches-begin --disable-accelerated-video-decode --flag-switches-end
Driver Information
Initialization time	41
In-process GPU	false
Passthrough Command Decoder	false
Supports overlays	false
Sandboxed	true
GPU0	VENDOR = 0x8086, DEVICE= 0x1927 *ACTIVE*
Optimus	false
Optimus	false
AMD switchable	false
Driver vendor	
Driver version	10.25.17
Driver date	
Pixel shader version	4.10
Vertex shader version	4.10
Max. MSAA samples	16
Machine model name	MacBookPro
Machine model version	13.2
GL_VENDOR	Intel Inc.
GL_RENDERER	Intel(R) Iris(TM) Graphics 550
GL_VERSION	4.1 INTEL-10.25.17
GL_EXTENSIONS	GL_ARB_blend_func_extended GL_ARB_draw_buffers_blend GL_ARB_draw_indirect GL_ARB_ES2_compatibility GL_ARB_explicit_attrib_location GL_ARB_gpu_shader_fp64 GL_ARB_gpu_shader5 GL_ARB_instanced_arrays GL_ARB_internalformat_query GL_ARB_occlusion_query2 GL_ARB_sample_shading GL_ARB_sampler_objects GL_ARB_separate_shader_objects GL_ARB_shader_bit_encoding GL_ARB_shader_subroutine GL_ARB_shading_language_include GL_ARB_tessellation_shader GL_ARB_texture_buffer_object_rgb32 GL_ARB_texture_cube_map_array GL_ARB_texture_gather GL_ARB_texture_query_lod GL_ARB_texture_rgb10_a2ui GL_ARB_texture_storage GL_ARB_texture_swizzle GL_ARB_timer_query GL_ARB_transform_feedback2 GL_ARB_transform_feedback3 GL_ARB_vertex_attrib_64bit GL_ARB_vertex_type_2_10_10_10_rev GL_ARB_viewport_array GL_EXT_debug_label GL_EXT_debug_marker GL_EXT_framebuffer_multisample_blit_scaled GL_EXT_texture_compression_s3tc GL_EXT_texture_filter_anisotropic GL_EXT_texture_sRGB_decode GL_APPLE_client_storage GL_APPLE_container_object_shareable GL_APPLE_flush_render GL_APPLE_object_purgeable GL_APPLE_rgb_422 GL_APPLE_row_bytes GL_APPLE_texture_range GL_ATI_texture_mirror_once GL_NV_texture_barrier
Disabled Extensions	GL_KHR_blend_equation_advanced GL_KHR_blend_equation_advanced_coherent
Window system binding vendor	
Window system binding version	
Window system binding extensions	
Direct rendering	Yes
Reset notification strategy	0x0000
GPU process crash count	0
Compositor Information
Tile Update Mode	Zero-copy
Partial Raster	Enabled
GpuMemoryBuffers Status
ATC	Software only
ATCIA	Software only
DXT1	Software only
DXT5	Software only
ETC1	Software only
RG_88	Software only
BGR_565	Software only
RGBA_4444	Software only
RGBX_8888	Software only
YVU_420	Software only

Suspect that this is also a bug in FFmpeg which is being used for decoding, see
5.8 KB View Download
4.8 KB View Download

Comment 1 by, Aug 15 2017

Labels: Needs-Triage-M60

Comment 2 by, Aug 16 2017

Labels: M-62
Status: Untriaged (was: Unconfirmed)
Able to reproduce this issue on Mac 10.12.6 using chrome reported version #60.0.3112.90 and latest canary #62.0.3187.0.
This is a non-regression issue as it is observed from M45 old builds. 
Note: The video doesn't play on mac 10.12.6 even for the first frame and issue is not seen on OS-Mac and OS-Linux.
Hence, marking it as untriaged to get more inputs from dev team.


Comment 3 by, Aug 31 2017

Labels: Needs-Feedback
the repro url in bug description is not working anymore. please provide a new repro url.

Comment 4 by, Sep 1 2017

repro url should be available again now

Comment 5 by, Sep 1 2017

Components: -Internals>Media Internals>Media>Hardware
Status: Assigned (was: Untriaged)
I can repro this bug. It is because of H/W decoder error. After disable H/W decoding, bug NOT repro.

render_id: 13
player_id: 2
total_bytes: 432728
streaming: false
single_origin: true
passed_cors_access_check: false
range_header_supported: true
pipeline_state: kStopped
info: FFmpegDemuxer: created video stream, config codec: h264 format: 2 profile: h264 main coded size: [1280,720] visible rect: [0,0,1280,720] natural size: [1280,720] has extra data? true encrypted? false
bitrate: 1373739
found_audio_stream: false
found_video_stream: true
height: 720
max_duration: 2.52
start_time: 0
time_base: 1/25
video_codec_name: h264
video_format: PIXEL_FORMAT_YV12
video_is_encrypted: false
width: 1280
video_dds: false
video_decoder: GpuVideoDecoder
video_buffering_state: BUFFERING_HAVE_ENOUGH
pipeline_buffering_state: BUFFERING_HAVE_ENOUGH
event: PAUSE
debug: FFmpegDemuxer: av_read_frame(): End of file
error: video decode error
duration: 2.52

00:00:00 00	origin_url
00:00:00 00	frame_url
00:00:00 00	frame_title	
00:00:00 00	url
00:00:00 01	total_bytes	432728
00:00:00 01	streaming	false
00:00:00 01	single_origin	true
00:00:00 01	passed_cors_access_check	false
00:00:00 01	range_header_supported	true
00:00:00 01	pipeline_state	kStarting
00:00:00 09	info	FFmpegDemuxer: created video stream, config codec: h264 format: 2 profile: h264 main coded size: [1280,720] visible rect: [0,0,1280,720] natural size: [1280,720] has extra data? true encrypted? false
00:00:00 09	bitrate	1373739
00:00:00 09	found_audio_stream	false
00:00:00 09	found_video_stream	true
00:00:00 09	height	720
00:00:00 09	max_duration	2.52
00:00:00 09	start_time	0
00:00:00 09	time_base	1/25
00:00:00 09	video_codec_name	h264
00:00:00 09	video_format	PIXEL_FORMAT_YV12
00:00:00 09	video_is_encrypted	false
00:00:00 09	width	1280
00:00:00 10	video_dds	false
00:00:00 10	video_decoder	GpuVideoDecoder
00:00:00 10	pipeline_state	kPlaying
00:00:00 34	height	720
00:00:00 34	width	1280
00:00:00 34	video_buffering_state	BUFFERING_HAVE_ENOUGH
00:00:00 34	pipeline_buffering_state	BUFFERING_HAVE_ENOUGH
00:00:00 34	event	PLAY
00:00:00 41	debug	FFmpegDemuxer: av_read_frame(): End of file
00:00:00 44	error	video decode error
00:00:00 46	pipeline_error	PIPELINE_ERROR_DECODE
00:00:00 46	pipeline_state	kStopping
00:00:00 46	pipeline_state	kStopped
00:00:00 46	event	PAUSE
00:00:00 09	duration	2.52

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