Closed
Bug 1122904
Opened 9 years ago
Closed 9 years ago
1080p 60 FPS HTML5 Youtube videos stutter extremely with HW acceleration on
Categories
(Core :: Audio/Video, defect)
Tracking
()
RESOLVED
WORKSFORME
People
(Reporter: clogged.drainpipe, Unassigned)
References
()
Details
(Whiteboard: [youtubetest])
User Agent: Mozilla/5.0 (Windows NT 6.1; WOW64; rv:36.0) Gecko/20100101 Firefox/36.0 Build ID: 20150114125146 Steps to reproduce: 1. Go to a Youtube video that has the 1080p 60FPS format available. Test case: https://www.youtube.com/watch?v=hKqraFBt0Ww 2. Make sure the HTML5 player is in use. Set the video quality to 1080p60. 3. Look for stutters and framedrops. Actual results: The video suffers from heavy stuttering, a lot of frames are dropped. Framedrops come in bunches, bunch size seems random. There are moments of smooth video, but they never last more than 1 second. The statistics panel of the HTML5 player does not show any framedrops, even though they are happening. CPU and GPU usage stayed below 20%. Expected results: The video should have played smoothly. If any framedrops happened, they should be counted in the statistics panel. If I download the video with youtube-dl at 60FPS(no conversion of course) and play it back with MPC-HC there is absolutely no stutter.
Reporter | ||
Comment 1•9 years ago
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Application Basics ------------------ Name: Firefox Version: 36.0 User Agent: Mozilla/5.0 (Windows NT 6.1; WOW64; rv:36.0) Gecko/20100101 Firefox/36.0 Multiprocess Windows: 0/1 Crash Reports for the Last 3 Days --------------------------------- All Crash Reports (including 1 pending crash in the given time range) Extensions ---------- Name: Adblock Edge Version: 2.1.7 Enabled: true ID: {fe272bd1-5f76-4ea4-8501-a05d35d823fc} Name: DownloadHelper Version: 4.9.24 Enabled: true ID: {b9db16a4-6edc-47ec-a1f4-b86292ed211d} Name: DownThemAll! Version: 2.0.17 Enabled: true ID: {DDC359D1-844A-42a7-9AA1-88A850A938A8} Name: Element Hiding Helper for Adblock Plus Version: 1.3.1 Enabled: true ID: elemhidehelper@adblockplus.org Name: Ghostery Version: 5.4.1 Enabled: true ID: firefox@ghostery.com Name: HTTPS-Everywhere Version: 4.0.2 Enabled: true ID: https-everywhere@eff.org Name: Hungarian dictionary Version: 1.6.1.1 Enabled: true ID: hu@dictionaries.addons.mozilla.org Name: oab-fxaddon Version: 1.3 Enabled: true ID: jid1-I4HAe95cHq6CJQ@jetpack Name: Self-Destructing Cookies Version: 0.4.6 Enabled: true ID: jid0-9XfBwUWnvPx4wWsfBWMCm4Jj69E@jetpack Name: YouTube Enhancer Plus Version: 3.3.4 Enabled: false ID: firefoxaddon@youtubeenhancer.com Graphics -------- Adapter Description: ATI Radeon HD 4800 Series Adapter Drivers: aticfx64 aticfx64 aticfx64 aticfx32 aticfx32 aticfx32 atiumd64 atidxx64 atidxx64 atiumdag atidxx32 atidxx32 atiumdva atiumd6a atitmm64 Adapter RAM: 1024 Device ID: 0x9460 Direct2D Enabled: true DirectWrite Enabled: true (6.2.9200.16571) Driver Date: 4-29-2013 Driver Version: 8.970.100.1100 GPU #2 Active: false GPU Accelerated Windows: 1/1 Direct3D 11 (OMTC) Subsys ID: 02b81043 Vendor ID: 0x1002 WebGL Renderer: Google Inc. -- ANGLE (ATI Radeon HD 4800 Series Direct3D9Ex vs_3_0 ps_3_0) windowLayerManagerRemote: true AzureCanvasBackend: direct2d 1.1 AzureContentBackend: direct2d 1.1 AzureFallbackCanvasBackend: cairo AzureSkiaAccelerated: 0 Important Modified Preferences ------------------------------ accessibility.typeaheadfind.flashBar: 0 browser.cache.disk.capacity: 358400 browser.cache.disk.smart_size.first_run: false browser.cache.disk.smart_size.use_old_max: false browser.cache.frecency_experiment: 4 browser.places.smartBookmarksVersion: 7 browser.search.useDBForOrder: true browser.sessionstore.upgradeBackup.latestBuildID: 20150114125146 browser.startup.homepage_override.buildID: 20150114125146 browser.startup.homepage_override.mstone: 36.0 browser.urlbar.default.behavior: 1 browser.urlbar.suggest.bookmark: false browser.urlbar.suggest.openpage: false dom.mozApps.used: true extensions.lastAppVersion: 36.0 gfx.direct3d.last_used_feature_level_idx: 0 media.gmp-gmpopenh264.lastUpdate: 1413055087 media.gmp-gmpopenh264.version: 1.1 media.gmp-manager.lastCheck: 1421452815 network.cookie.cookieBehavior: 1 network.cookie.prefsMigrated: true places.database.lastMaintenance: 1421444578 places.history.expiration.transient_current_max_pages: 104858 plugin.disable_full_page_plugin_for_types: application/pdf plugin.importedState: true plugin.state.flash: 1 privacy.donottrackheader.enabled: true privacy.sanitize.migrateFx3Prefs: true security.disable_button.openDeviceManager: false storage.vacuum.last.index: 1 storage.vacuum.last.places.sqlite: 1420925624 Important Locked Preferences ---------------------------- JavaScript ---------- Incremental GC: true Accessibility ------------- Activated: false Prevent Accessibility: 0 Library Versions ---------------- NSPR Expected minimum version: 4.10.7 Version in use: 4.10.7 NSS Expected minimum version: 3.17.3 Basic ECC Version in use: 3.17.3 Basic ECC NSSSMIME Expected minimum version: 3.17.3 Basic ECC Version in use: 3.17.3 Basic ECC NSSSSL Expected minimum version: 3.17.3 Basic ECC Version in use: 3.17.3 Basic ECC NSSUTIL Expected minimum version: 3.17.3 Version in use: 3.17.3 Experimental Features ---------------------
Updated•9 years ago
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Component: Untriaged → Video/Audio
Product: Firefox → Core
Reporter | ||
Comment 3•9 years ago
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Disabling all of my addons have no difference at all. On a hunch I have tried disabling hardware acceleration(unticked "use hardware acceleration when available"). This did change things a bit, the CPU usage fluctuated wildly between about 5%, 55% and 100%, and the lagging characteristics have changed. Sometimes the video will keep playing without major stutters for tens of seconds, while the CPU is hovering around 90-100%, but it is not smooth, it feels like its dropping a lot of frames. The statistics panel of the YT player still does not count dropped frames.
Flags: needinfo?(clogged.drainpipe)
Reporter | ||
Updated•9 years ago
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See Also: → 1120128
Summary: 1080p 60 FPS videos lag and stutter like hell on Youtube, statistics do not record framedrops → 1080p 60 FPS HTML5 Youtube videos stutter extremely with HW acceleration on
Whiteboard: [youtubetest]
Reporter | ||
Comment 4•9 years ago
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I have done some additional testing. It seems like my video hardware/driver(HD 4890, Catalyst Legacy 13.9) has a bug in DXVA, when it comes to 60 FPS videos, causing extreme stuttering. However this seems to only become a problem above 50 FPS, I have tested 1080p 50 FPS videos, and have had no issues, no visible stuttering. I suspect that all other HD48XX cards have this issue, but I do not have any to test. A possible workaround could be blacklisting DXVA acceleration on this card, however that would have the side effect of killing DXVA for all videos, including 1080p30,720p60 and all other formats that work perfectly fine. This would generally not be an issue, since software decoding works for all framerates, but considering that these cards are usually found in old systems with limited CPU power, software decoding may not be viable, and some users may face stuttering in 1080p30 videos if DXVA is disabled. This would degrade user experience.(problems only with 1080p60--->problems with 1080p60, 1080p30, 720p60+high CPU usage on all videos) Therefore I propose, that DXVA should remain enabled by default on these cards but expose DXVA usage in about:config.
Updated•9 years ago
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Blocks: youtube-mse
Reporter | ||
Comment 5•9 years ago
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I am closing this, while there are still framedrops on 60fps videos, they now work reasonably well.(as of FF 40)
Status: UNCONFIRMED → RESOLVED
Closed: 9 years ago
Resolution: --- → WORKSFORME
(In reply to clogged.drainpipe from comment #5) > I am closing this, while there are still framedrops on 60fps videos, they > now work reasonably well.(as of FF 40) Thanks. We're still working on improving video/graphics performance.
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Description
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