[libcamera-devel] [PATCH v3 20/27] gst: Add getters for Stream and FrameBuffer
Nicolas Dufresne
nicolas at ndufresne.ca
Fri Mar 6 21:26:30 CET 2020
From: Nicolas Dufresne <nicolas.dufresne at collabora.com>
This adds getters on pad/pool/allocator so that we can retrieve the
Stream or FrameBuffer.
Signed-off-by: Nicolas Dufresne <nicolas.dufresne at collabora.com>
Reviewed-by: Laurent Pinchart <laurent.pinchart at ideasonboard.com>
---
src/gstreamer/gstlibcameraallocator.cpp | 8 ++++++++
src/gstreamer/gstlibcameraallocator.h | 2 ++
src/gstreamer/gstlibcamerapad.cpp | 11 +++++++++++
src/gstreamer/gstlibcamerapad.h | 2 ++
src/gstreamer/gstlibcamerapool.cpp | 20 ++++++++++++++++++++
src/gstreamer/gstlibcamerapool.h | 7 +++++++
6 files changed, 50 insertions(+)
diff --git a/src/gstreamer/gstlibcameraallocator.cpp b/src/gstreamer/gstlibcameraallocator.cpp
index 861af59..d0b90ec 100644
--- a/src/gstreamer/gstlibcameraallocator.cpp
+++ b/src/gstreamer/gstlibcameraallocator.cpp
@@ -243,3 +243,11 @@ gst_libcamera_allocator_get_pool_size(GstLibcameraAllocator *self,
return pool->length;
}
+
+FrameBuffer *
+gst_libcamera_memory_get_frame_buffer(GstMemory *mem)
+{
+ auto *frame = reinterpret_cast<FrameWrap *>(gst_mini_object_get_qdata(GST_MINI_OBJECT_CAST(mem),
+ FrameWrap::getQuark()));
+ return frame->buffer_;
+}
diff --git a/src/gstreamer/gstlibcameraallocator.h b/src/gstreamer/gstlibcameraallocator.h
index b3f7f36..befdcad 100644
--- a/src/gstreamer/gstlibcameraallocator.h
+++ b/src/gstreamer/gstlibcameraallocator.h
@@ -27,4 +27,6 @@ bool gst_libcamera_allocator_prepare_buffer(GstLibcameraAllocator *self,
gsize gst_libcamera_allocator_get_pool_size(GstLibcameraAllocator *allocator,
libcamera::Stream *stream);
+libcamera::FrameBuffer *gst_libcamera_memory_get_frame_buffer(GstMemory *mem);
+
#endif /* __GST_LIBCAMERA_ALLOCATOR_H__ */
diff --git a/src/gstreamer/gstlibcamerapad.cpp b/src/gstreamer/gstlibcamerapad.cpp
index dbe3361..8616e06 100644
--- a/src/gstreamer/gstlibcamerapad.cpp
+++ b/src/gstreamer/gstlibcamerapad.cpp
@@ -126,3 +126,14 @@ gst_libcamera_pad_set_pool(GstPad *pad, GstLibcameraPool *pool)
g_object_unref(self->pool);
self->pool = pool;
}
+
+Stream *
+gst_libcamera_pad_get_stream(GstPad *pad)
+{
+ auto *self = GST_LIBCAMERA_PAD(pad);
+
+ if (self->pool)
+ return gst_libcamera_pool_get_stream(self->pool);
+
+ return nullptr;
+}
diff --git a/src/gstreamer/gstlibcamerapad.h b/src/gstreamer/gstlibcamerapad.h
index b03f47a..f7dfc28 100644
--- a/src/gstreamer/gstlibcamerapad.h
+++ b/src/gstreamer/gstlibcamerapad.h
@@ -24,4 +24,6 @@ GstLibcameraPool *gst_libcamera_pad_get_pool(GstPad *pad);
void gst_libcamera_pad_set_pool(GstPad *pad, GstLibcameraPool *pool);
+libcamera::Stream *gst_libcamera_pad_get_stream(GstPad *pad);
+
#endif /* __GST_LIBCAMERA_PAD_H__ */
diff --git a/src/gstreamer/gstlibcamerapool.cpp b/src/gstreamer/gstlibcamerapool.cpp
index 75e189a..3868905 100644
--- a/src/gstreamer/gstlibcamerapool.cpp
+++ b/src/gstreamer/gstlibcamerapool.cpp
@@ -108,3 +108,23 @@ gst_libcamera_pool_new(GstLibcameraAllocator *allocator, Stream *stream)
return pool;
}
+
+Stream *
+gst_libcamera_pool_get_stream(GstLibcameraPool *self)
+{
+ return self->stream;
+}
+
+Stream *
+gst_libcamera_buffer_get_stream(GstBuffer *buffer)
+{
+ auto *self = (GstLibcameraPool *)buffer->pool;
+ return self->stream;
+}
+
+FrameBuffer *
+gst_libcamera_buffer_get_frame_buffer(GstBuffer *buffer)
+{
+ GstMemory *mem = gst_buffer_peek_memory(buffer, 0);
+ return gst_libcamera_memory_get_frame_buffer(mem);
+}
diff --git a/src/gstreamer/gstlibcamerapool.h b/src/gstreamer/gstlibcamerapool.h
index c0a04cf..a3f1b68 100644
--- a/src/gstreamer/gstlibcamerapool.h
+++ b/src/gstreamer/gstlibcamerapool.h
@@ -24,4 +24,11 @@ G_DECLARE_FINAL_TYPE(GstLibcameraPool, gst_libcamera_pool, GST_LIBCAMERA, POOL,
GstLibcameraPool *gst_libcamera_pool_new(GstLibcameraAllocator *allocator,
libcamera::Stream *stream);
+libcamera::Stream *gst_libcamera_pool_get_stream(GstLibcameraPool *self);
+
+libcamera::Stream *gst_libcamera_buffer_get_stream(GstBuffer *buffer);
+
+libcamera::FrameBuffer *gst_libcamera_buffer_get_frame_buffer(GstBuffer *buffer);
+
+
#endif /* __GST_LIBCAMERA_POOL_H__ */
--
2.24.1
More information about the libcamera-devel
mailing list