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win32ipcvideosrc: Protect pipe from flush thread

Browse source 
The pipe object must be protected against GstBaseSrc::unlock()
thread.

Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/3465>
This commit is contained in:
Seungha Yang 2022-11-25 20:14:43 +09:00 committed by GStreamer Marge Bot
parent 25f90c828a
commit 20e83fa45b
1 changed files with 9 additions and 1 deletions
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10
subprojects/gst-plugins-bad/sys/win32ipc/gstwin32ipcvideosrc.cpp
View file

@ -288,7 +288,7 @@ gst_win32_ipc_video_src_unlock_stop (GstBaseSrc * src)
{
GstWin32IpcVideoSrc *self = GST_WIN32_IPC_VIDEO_SRC (src);
GST_DEBUG_OBJECT (self, "Unlock");
GST_DEBUG_OBJECT (self, "Unlock stop");
AcquireSRWLockExclusive (&self->lock);
g_clear_pointer (&self->pipe, win32_ipc_pipe_client_unref);
@ -412,13 +412,21 @@ gst_win32_ipc_video_src_create (GstBaseSrc * src, guint64 offset, guint size,
gboolean is_qpc = TRUE;
gboolean need_video_meta = FALSE;
AcquireSRWLockExclusive (&self->lock);
if (self->flushing) {
ReleaseSRWLockExclusive (&self->lock);
return GST_FLOW_FLUSHING;
}
if (!self->pipe) {
self->pipe = win32_ipc_pipe_client_new (self->pipe_name);
if (!self->pipe) {
ReleaseSRWLockExclusive (&self->lock);
GST_ERROR_OBJECT (self, "Couldn't create pipe");
return GST_FLOW_ERROR;
}
}
ReleaseSRWLockExclusive (&self->lock);
if (!win32_ipc_pipe_client_get_mmf (self->pipe, &mmf, &info)) {
AcquireSRWLockExclusive (&self->lock);