[libcamera-devel] [PATCH v1 20/23] gst: Add getters for Stream and FrameBuffer
Nicolas Dufresne
nicolas at ndufresne.ca
Wed Jan 29 04:32:07 CET 2020
From: Nicolas Dufresne <nicolas.dufresne at collabora.com>
This add getters on pad/pool/allocator so that we can retrieve the
Stream or FrameBuffer.
Signed-off-by: Nicolas Dufresne <nicolas.dufresne at collabora.com>
---
src/gstreamer/gstlibcameraallocator.cpp | 9 +++++++++
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, 51 insertions(+)
diff --git a/src/gstreamer/gstlibcameraallocator.cpp b/src/gstreamer/gstlibcameraallocator.cpp
index 0f248b4..bdc6de6 100644
--- a/src/gstreamer/gstlibcameraallocator.cpp
+++ b/src/gstreamer/gstlibcameraallocator.cpp
@@ -238,3 +238,12 @@ gst_libcamera_allocator_get_pool_size(GstLibcameraAllocator *self,
return pool->length;
}
+
+FrameBuffer *
+gst_libcamera_memory_get_frame_buffer(GstMemory *mem)
+{
+ gpointer data = gst_mini_object_get_qdata(GST_MINI_OBJECT_CAST(mem),
+ gst_libcamera_frame_quark());
+ auto *frame = (FrameWrap *)data;
+ return frame->buffer_;
+}
diff --git a/src/gstreamer/gstlibcameraallocator.h b/src/gstreamer/gstlibcameraallocator.h
index f2a0f58..b4de65a 100644
--- a/src/gstreamer/gstlibcameraallocator.h
+++ b/src/gstreamer/gstlibcameraallocator.h
@@ -26,4 +26,6 @@ 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 b9e6dc5..6401810 100644
--- a/src/gstreamer/gstlibcamerapad.cpp
+++ b/src/gstreamer/gstlibcamerapad.cpp
@@ -125,3 +125,14 @@ 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 4570c0c..81d0d58 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 f84d1d6..6ab01cb 100644
--- a/src/gstreamer/gstlibcamerapool.cpp
+++ b/src/gstreamer/gstlibcamerapool.cpp
@@ -107,3 +107,23 @@ 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 ca6b299..8cc6cdf 100644
--- a/src/gstreamer/gstlibcamerapool.h
+++ b/src/gstreamer/gstlibcamerapool.h
@@ -24,4 +24,11 @@ G_DECLARE_FINAL_TYPE(GstLibcameraPool, 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
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