Assertion failure: !mVideo.mSeekRequest.Exists(), at dom/media/MediaFormatReader.cpp:529

RESOLVED FIXED in Firefox 42

Status

()

defect
RESOLVED FIXED
4 years ago
4 years ago

People

(Reporter: jya, Assigned: jya)

Tracking

Trunk
mozilla42
All
Linux
Points:
---
Dependency tree / graph

Firefox Tracking Flags

(firefox42 fixed)

Details

Attachments

(1 attachment)

When using the new MSE with the blank decoder on linux, we get those assertions:

23:55:30     INFO -   0  libxul.so!mozilla::MediaFormatReader::RequestVideoData(bool, long long, bool) [MediaFormatReader.cpp:ab5253e6193a : 529 + 0x19]
23:55:30     INFO -      eip = 0xb3bec09b   esp = 0xa71fdda0   ebp = 0xa71fddf8   ebx = 0xb760d290
23:55:30     INFO -      esi = 0x00000000   edi = 0x00000000   eax = 0x00000000   ecx = 0xb23798ac
23:55:30     INFO -      edx = 0x00000000   efl = 0x00210286
23:55:30     INFO -      Found by: given as instruction pointer in context
23:55:30     INFO -   1  libxul.so!mozilla::detail::MethodCallWithThreeArgs<mozilla::MediaPromise<nsRefPtr<mozilla::VideoData>, mozilla::MediaDecoderReader::NotDecodedReason, true>, mozilla::MediaDecoderReader, bool, long long, bool>::Invoke() [MediaPromise.h:ab5253e6193a : 920 + 0x18]
23:55:30     INFO -      eip = 0xb3bfe785   esp = 0xa71fde00   ebp = 0xa71fde28   ebx = 0xb760d290
23:55:30     INFO -      esi = 0x9d982320   edi = 0xa71fde48
23:55:30     INFO -      Found by: call frame info
23:55:30     INFO -   2  libxul.so!mozilla::detail::ProxyRunnable<mozilla::MediaPromise<nsRefPtr<mozilla::VideoData>, mozilla::MediaDecoderReader::NotDecodedReason, true> >::Run() [MediaPromise.h:ab5253e6193a : 938 + 0xa]
23:55:30     INFO -      eip = 0xb3bfda40   esp = 0xa71fde30   ebp = 0xa71fde68   ebx = 0xb760d290
23:55:30     INFO -      esi = 0x9d982360   edi = 0x9d9f329c
23:55:30     INFO -      Found by: call frame info
23:55:30     INFO -   3  libxul.so!mozilla::AutoTaskDispatcher::TaskGroupRunnable::Run() [TaskDispatcher.h:ab5253e6193a : 181 + 0x3]
23:55:30     INFO -      eip = 0xb3b8f69d   esp = 0xa71fde70   ebp = 0xa71fde88   ebx = 0xb760d290
23:55:30     INFO -      esi = 0x00000001   edi = 0x9d9f329c
23:55:30     INFO -      Found by: call frame info
23:55:30     INFO -   4  libxul.so!mozilla::MediaTaskQueue::Runner::Run() [MediaTaskQueue.cpp:ab5253e6193a : 256 + 0xa]
23:55:30     INFO -      eip = 0xb3c24fe0   esp = 0xa71fde90   ebp = 0xa71fdf08   ebx = 0xb760d290
23:55:30     INFO -      esi = 0x9d9f3b40   edi = 0xa71fdeb8
23:55:30     INFO -      Found by: call frame info
23:55:30     INFO -   5  libxul.so!nsThreadPool::Run() [nsThreadPool.cpp:ab5253e6193a : 228 + 0x13]
23:55:30     INFO -      eip = 0xb28c858d   esp = 0xa71fdf10   ebp = 0xa71fdf78   ebx = 0xb760d290
23:55:30     INFO -      esi = 0x8c7cf900   edi = 0xa71fdf54
23:55:30     INFO -      Found by: call frame info
23:55:30     INFO -   6  libxul.so!nsThread::ProcessNextEvent(bool, bool*) [nsThread.cpp:ab5253e6193a : 867 + 0x13]
23:55:30     INFO -      eip = 0xb28c6515   esp = 0xa71fdf80   ebp = 0xa71fdfe8   ebx = 0xb760d290
23:55:30     INFO -      esi = 0x8db01d70   edi = 0xa71fdfb8
23:55:30     INFO -      Found by: call frame info
23:55:30     INFO -   7  libxul.so!NS_ProcessNextEvent(nsIThread*, bool) [nsThreadUtils.cpp:ab5253e6193a : 277 + 0xf]
23:55:30     INFO -      eip = 0xb28edb75   esp = 0xa71fdff0   ebp = 0xa71fe028   ebx = 0xb760d290
23:55:30     INFO -      esi = 0x8f8a4a00   edi = 0x8c950cc0
23:55:30     INFO -      Found by: call frame info
23:55:30     INFO -   8  libxul.so!mozilla::ipc::MessagePumpForNonMainThreads::Run(base::MessagePump::Delegate*) [MessagePump.cpp:ab5253e6193a : 326 + 0xb]
23:55:30     INFO -      eip = 0xb2b779a5   esp = 0xa71fe030   ebp = 0xa71fe078   ebx = 0xb760d290
23:55:30     INFO -      esi = 0x8f8a4a00   edi = 0x8c950cc0
23:55:30     INFO -      Found by: call frame info
23:55:30     INFO -   9  libxul.so!MessageLoop::RunInternal() [message_loop.cc:ab5253e6193a : 234 + 0x13]
23:55:30     INFO -      eip = 0xb2b577fe   esp = 0xa71fe080   ebp = 0xa71fe0a8   ebx = 0xb760d290
23:55:30     INFO -      esi = 0x8c950cc0   edi = 0x8db01d70
23:55:30     INFO -      Found by: call frame info
23:55:30     INFO -  10  libxul.so!MessageLoop::Run() [message_loop.cc:ab5253e6193a : 227 + 0x7]
23:55:30     INFO -      eip = 0xb2b57824   esp = 0xa71fe0b0   ebp = 0xa71fe0d8   ebx = 0xb760d290
23:55:30     INFO -      esi = 0x8c950cc0   edi = 0x8db01d70
23:55:30     INFO -      Found by: call frame info
23:55:30     INFO -  11  libxul.so!nsThread::ThreadFunc(void*) [nsThread.cpp:ab5253e6193a : 360 + 0x8]
23:55:30     INFO -      eip = 0xb28c683b   esp = 0xa71fe0e0   ebp = 0xa71fe128   ebx = 0xb760d290
23:55:30     INFO -      esi = 0x8c950cc0   edi = 0x8db01d70
23:55:30     INFO -      Found by: call frame info
23:55:30     INFO -  12  libnspr4.so!_pt_root [ptthread.c:ab5253e6193a : 212 + 0x8]
23:55:30     INFO -      eip = 0xb77260e5   esp = 0xa71fe130   ebp = 0xa71fe168   ebx = 0xb773d550
23:55:30     INFO -      esi = 0x8cac0e40   edi = 0x00000bf2
23:55:30     INFO -      Found by: call frame info
23:55:30     INFO -  13  libpthread-2.15.so + 0x6d4b
23:55:30     INFO -      eip = 0xb7750d4c   esp = 0xa71fe170   ebp = 0xa71fe268   ebx = 0xb7761ff4
23:55:30     INFO -      esi = 0x00000000   edi = 0x003d0f00
23:55:30     INFO -      Found by: call frame info
23:55:30     INFO -  14  libc-2.15.so + 0xef8bd
23:55:30     INFO -      eip = 0xb22c08be   esp = 0xa71fe270   ebp = 0x00000000
23:55:30     INFO -      Found by: previous frame's frame pointer

Now why the MDSM would request new data prior the seek to be completed: I have no idea.
OS: Unspecified → Linux
Hardware: Unspecified → All
Blocks: 1171379
No longer blocks: 1182946
Otherwise, upon entering DecodeDemuxedSamples we would immediately flush the decoder which would discard all the frames currently being drained.
Also, when seeking between streams, it's okay to call RequestVideoData/RequestAudioData.
Attachment #8633893 - Flags: review?(cpearce)
Attachment #8633893 - Flags: review?(cpearce) → review+
https://hg.mozilla.org/mozilla-central/rev/ef1250ce23a3
https://hg.mozilla.org/mozilla-central/rev/f0e5f3f89b91
Assignee: nobody → jyavenard
Status: NEW → RESOLVED
Closed: 4 years ago
Resolution: --- → FIXED
Target Milestone: --- → mozilla42
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