Closed
Bug 1496222
Opened 6 years ago
Closed 6 years ago
ffvp9 fails to decode some VP9 files
Categories
(Core :: Audio/Video: Playback, enhancement, P2)
Core
Audio/Video: Playback
Tracking
()
RESOLVED
FIXED
mozilla64
| Tracking | Status | |
|---|---|---|
| firefox64 | --- | fixed |
People
(Reporter: jya, Assigned: jya)
References
()
Details
Attachments
(1 file)
Those files: https://jyavenard.github.io/htmltests/mediatest/webm/vp9/yuv420p12.webm https://jyavenard.github.io/htmltests/mediatest/webm/vp9/yuv422p10.webm https://jyavenard.github.io/htmltests/mediatest/webm/vp9/yuv422p12.webm Fail to play with ffmpeg. They are made of a single frame. That frame is passed to avcodec_decode_video2 (https://searchfox.org/mozilla-central/source/dom/media/platforms/ffmpeg/FFmpegVideoDecoder.cpp#219) it will use all bytes, but doesn't return any frame. Then the decoder is drained, feeding null/zero to avcodec_decode_video2 which returns -1 Draining should never return -1.
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Assignee | |
Comment 1•6 years ago
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If I disable MT decoding (by setting mCodecContext->thread_count = 1) then the first avcodec_decode_video2 returns 1
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Assignee | |
Comment 2•6 years ago
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It's our code. https://searchfox.org/mozilla-central/source/dom/media/platforms/ffmpeg/FFmpegVideoDecoder.cpp#50 doesn't support 422 nor 420p12
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Assignee | |
Updated•6 years ago
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Assignee: nobody → jyavenard
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Assignee | |
Comment 3•6 years ago
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Updated•6 years ago
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Rank: 10
Priority: -- → P2
Pushed by jyavenard@mozilla.com: https://hg.mozilla.org/integration/autoland/rev/44cc1c10c530 Add missing pixel format in FFmpeg decoder r=padenot
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Comment 5•6 years ago
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| bugherder | ||
https://hg.mozilla.org/mozilla-central/rev/44cc1c10c530
Status: NEW → RESOLVED
Closed: 6 years ago
status-firefox64:
--- → fixed
Resolution: --- → FIXED
Target Milestone: --- → mozilla64
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Description
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