--- /dev/null
+/* GStreamer
+ * Copyright (C) 2021 Igalia, S.L.
+ * Author: Víctor Jáquez <vjaquez@igalia.com>
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Library General Public
+ * License as published by the Free Software Foundation; either
+ * version 2 of the License, or (at your option) any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * Library General Public License for more details.
+ *
+ * You should have received a copy of the GNU Library General Public
+ * License along with this library; if not, write to the
+ * Free Software Foundation, Inc., 51 Franklin St, Fifth Floor,
+ * Boston, MA 02110-1301, USA.
+ */
+
+#ifdef HAVE_CONFIG_H
+#include "config.h"
+#endif
+
+#include "gstvabasetransform.h"
+
+#include "gstvaallocator.h"
+#include "gstvacaps.h"
+#include "gstvapool.h"
+#include "gstvautils.h"
+
+#define GST_CAT_DEFAULT gst_va_base_transform_debug
+GST_DEBUG_CATEGORY_STATIC (GST_CAT_DEFAULT);
+
+struct _GstVaBaseTransformPrivate
+{
+ GstVideoInfo srcpad_info;
+
+ GstBufferPool *other_pool;
+
+ GstCaps *sinkpad_caps;
+ GstVideoInfo sinkpad_info;
+ GstBufferPool *sinkpad_pool;
+};
+
+#define gst_va_base_transform_parent_class parent_class
+G_DEFINE_TYPE_WITH_CODE (GstVaBaseTransform, gst_va_base_transform,
+ GST_TYPE_BASE_TRANSFORM, G_ADD_PRIVATE (GstVaBaseTransform)
+ GST_DEBUG_CATEGORY_INIT (gst_va_base_transform_debug,
+ "vabasetransform", 0, "vabasetransform element");
+ );
+
+extern GRecMutex GST_VA_SHARED_LOCK;
+
+static void
+gst_va_base_transform_dispose (GObject * object)
+{
+ GstVaBaseTransform *self = GST_VA_BASE_TRANSFORM (object);
+
+ if (self->priv->other_pool) {
+ gst_buffer_pool_set_active (self->priv->other_pool, FALSE);
+ gst_clear_object (&self->priv->other_pool);
+ }
+
+ gst_clear_caps (&self->out_caps);
+ gst_clear_caps (&self->in_caps);
+
+ gst_clear_object (&self->filter);
+ gst_clear_object (&self->display);
+
+ if (self->priv->sinkpad_pool) {
+ gst_buffer_pool_set_active (self->priv->sinkpad_pool, FALSE);
+ gst_clear_object (&self->priv->sinkpad_pool);
+ }
+
+ gst_clear_caps (&self->priv->sinkpad_caps);
+
+ G_OBJECT_CLASS (parent_class)->dispose (object);
+}
+
+static void
+gst_va_base_transform_init (GstVaBaseTransform * self)
+{
+ gst_base_transform_set_qos_enabled (GST_BASE_TRANSFORM (self), TRUE);
+
+ self->priv = gst_va_base_transform_get_instance_private (self);
+}
+
+static gboolean
+gst_va_base_transform_query (GstBaseTransform * trans,
+ GstPadDirection direction, GstQuery * query)
+{
+ GstVaBaseTransform *self = GST_VA_BASE_TRANSFORM (trans);
+ gboolean ret = FALSE;
+
+ switch (GST_QUERY_TYPE (query)) {
+ case GST_QUERY_CONTEXT:
+ {
+ GstVaDisplay *display = NULL;
+
+ gst_object_replace ((GstObject **) & display,
+ (GstObject *) self->display);
+ ret = gst_va_handle_context_query (GST_ELEMENT_CAST (self), query,
+ display);
+ gst_clear_object (&display);
+ break;
+ }
+ default:
+ ret = GST_BASE_TRANSFORM_CLASS (parent_class)->query (trans, direction,
+ query);
+ break;
+ }
+
+ return ret;
+}
+
+static gboolean
+gst_va_base_transform_set_caps (GstBaseTransform * trans, GstCaps * incaps,
+ GstCaps * outcaps)
+{
+ GstVaBaseTransform *self = GST_VA_BASE_TRANSFORM (trans);
+ GstVaBaseTransformClass *fclass;
+ GstVideoInfo in_info, out_info;
+ gboolean res;
+
+ /* input caps */
+ if (!gst_video_info_from_caps (&in_info, incaps))
+ goto invalid_caps;
+
+ /* output caps */
+ if (!gst_video_info_from_caps (&out_info, outcaps))
+ goto invalid_caps;
+
+ fclass = GST_VA_BASE_TRANSFORM_GET_CLASS (self);
+ if (fclass->set_info)
+ res = fclass->set_info (self, incaps, &in_info, outcaps, &out_info);
+ else
+ res = TRUE;
+
+ self->negotiated = res;
+
+ if (res) {
+ gst_caps_replace (&self->in_caps, incaps);
+ gst_caps_replace (&self->out_caps, outcaps);
+
+ self->in_info = in_info;
+ self->out_info = out_info;
+ }
+
+ if (self->priv->sinkpad_pool) {
+ gst_buffer_pool_set_active (self->priv->sinkpad_pool, FALSE);
+ gst_clear_object (&self->priv->sinkpad_pool);
+ }
+
+ if (self->priv->other_pool) {
+ gst_buffer_pool_set_active (self->priv->other_pool, FALSE);
+ gst_clear_object (&self->priv->other_pool);
+ }
+
+ return res;
+
+ /* ERRORS */
+invalid_caps:
+ {
+ GST_ERROR_OBJECT (self, "invalid caps");
+ self->negotiated = FALSE;
+ return FALSE;
+ }
+}
+
+/* Answer upstream allocation query. */
+static gboolean
+gst_va_base_transform_propose_allocation (GstBaseTransform * trans,
+ GstQuery * decide_query, GstQuery * query)
+{
+ GstVaBaseTransform *self = GST_VA_BASE_TRANSFORM (trans);
+ GstAllocator *allocator = NULL;
+ GstAllocationParams params = { 0, };
+ GstBufferPool *pool;
+ GstCaps *caps;
+ GstVideoInfo info;
+ gboolean update_allocator = FALSE;
+ guint size, usage_hint = VA_SURFACE_ATTRIB_USAGE_HINT_GENERIC; /* it migth be
+ * used by a va
+ * decoder */
+
+ gst_clear_caps (&self->priv->sinkpad_caps);
+
+ if (!GST_BASE_TRANSFORM_CLASS (parent_class)->propose_allocation (trans,
+ decide_query, query))
+ return FALSE;
+
+ /* passthrough, we're done */
+ if (!decide_query)
+ return TRUE;
+
+ if (gst_query_get_n_allocation_pools (query) > 0)
+ return TRUE;
+
+ gst_query_parse_allocation (query, &caps, NULL);
+ if (!caps)
+ return FALSE;
+ if (!gst_video_info_from_caps (&info, caps)) {
+ GST_ERROR_OBJECT (self, "Cannot parse caps %" GST_PTR_FORMAT, caps);
+ return FALSE;
+ }
+
+ size = GST_VIDEO_INFO_SIZE (&info);
+
+ if (gst_query_get_n_allocation_params (query) > 0) {
+ gst_query_parse_nth_allocation_param (query, 0, &allocator, ¶ms);
+ if (!GST_IS_VA_DMABUF_ALLOCATOR (allocator)
+ && !GST_IS_VA_ALLOCATOR (allocator))
+ gst_clear_object (&allocator);
+ update_allocator = TRUE;
+ } else {
+ gst_allocation_params_init (¶ms);
+ }
+
+ if (!allocator) {
+ if (!(allocator = gst_va_base_transform_allocator_from_caps (self, caps)))
+ return FALSE;
+ }
+
+ pool = gst_va_pool_new_with_config (caps, size, 1 + self->extra_min_buffers,
+ 0, usage_hint, allocator, ¶ms);
+ if (!pool) {
+ gst_object_unref (allocator);
+ goto config_failed;
+ }
+
+ if (update_allocator)
+ gst_query_set_nth_allocation_param (query, 0, allocator, ¶ms);
+ else
+ gst_query_add_allocation_param (query, allocator, ¶ms);
+
+ gst_query_add_allocation_pool (query, pool, size, 1 + self->extra_min_buffers,
+ 0);
+
+ GST_DEBUG_OBJECT (self,
+ "proposing %" GST_PTR_FORMAT " with allocator %" GST_PTR_FORMAT,
+ pool, allocator);
+
+ gst_object_unref (allocator);
+ gst_object_unref (pool);
+
+ gst_query_add_allocation_meta (query, GST_VIDEO_META_API_TYPE, NULL);
+
+ self->priv->sinkpad_caps = gst_caps_ref (caps);
+
+ return TRUE;
+
+ /* ERRORS */
+config_failed:
+ {
+ GST_ERROR_OBJECT (self, "failed to set config");
+ return FALSE;
+ }
+}
+
+static GstBufferPool *
+_create_other_pool (GstAllocator * allocator,
+ GstAllocationParams * params, GstCaps * caps, guint size)
+{
+ GstBufferPool *pool = NULL;
+ GstStructure *config;
+
+ pool = gst_video_buffer_pool_new ();
+ config = gst_buffer_pool_get_config (pool);
+
+ gst_buffer_pool_config_set_params (config, caps, size, 0, 0);
+ gst_buffer_pool_config_set_allocator (config, allocator, params);
+ if (!gst_buffer_pool_set_config (pool, config)) {
+ gst_clear_object (&pool);
+ }
+
+ return pool;
+}
+
+/* configure the allocation query that was answered downstream, we can
+ * configure some properties on it. Only it's called when not in
+ * passthrough mode. */
+static gboolean
+gst_va_base_transform_decide_allocation (GstBaseTransform * trans,
+ GstQuery * query)
+{
+ GstVaBaseTransform *self = GST_VA_BASE_TRANSFORM (trans);
+ GstAllocator *allocator = NULL, *other_allocator = NULL;
+ GstAllocationParams params, other_params;
+ GstBufferPool *pool = NULL, *other_pool = NULL;
+ GstCaps *outcaps = NULL;
+ GstStructure *config;
+ GstVideoInfo vinfo;
+ guint min, max, size = 0, usage_hint = VA_SURFACE_ATTRIB_USAGE_HINT_VPP_WRITE;
+ gboolean update_pool, update_allocator, has_videometa, copy_frames;
+
+ gst_query_parse_allocation (query, &outcaps, NULL);
+
+ gst_allocation_params_init (&other_params);
+ gst_allocation_params_init (¶ms);
+
+ if (!gst_video_info_from_caps (&vinfo, outcaps)) {
+ GST_ERROR_OBJECT (self, "Cannot parse caps %" GST_PTR_FORMAT, outcaps);
+ return FALSE;
+ }
+
+ if (gst_query_get_n_allocation_params (query) > 0) {
+ gst_query_parse_nth_allocation_param (query, 0, &allocator, &other_params);
+ if (allocator && !(GST_IS_VA_DMABUF_ALLOCATOR (allocator)
+ || GST_IS_VA_ALLOCATOR (allocator))) {
+ /* save the allocator for the other pool */
+ other_allocator = allocator;
+ allocator = NULL;
+ }
+ update_allocator = TRUE;
+ } else {
+ update_allocator = FALSE;
+ }
+
+ if (gst_query_get_n_allocation_pools (query) > 0) {
+ gst_query_parse_nth_allocation_pool (query, 0, &pool, &size, &min, &max);
+
+ if (pool) {
+ if (!GST_IS_VA_POOL (pool)) {
+ GST_DEBUG_OBJECT (self,
+ "may need other pool for copy frames %" GST_PTR_FORMAT, pool);
+ other_pool = pool;
+ pool = NULL;
+ }
+ }
+
+ update_pool = TRUE;
+ } else {
+ size = GST_VIDEO_INFO_SIZE (&vinfo);
+ min = 1;
+ max = 0;
+ update_pool = FALSE;
+ }
+
+ if (!allocator) {
+ /* XXX(victor): USAGE_HINT_VPP_WRITE creates tiled dmabuf frames
+ * in iHD */
+ if (gst_caps_is_dmabuf (outcaps) && GST_VIDEO_INFO_IS_RGB (&vinfo))
+ usage_hint = VA_SURFACE_ATTRIB_USAGE_HINT_GENERIC;
+ if (!(allocator =
+ gst_va_base_transform_allocator_from_caps (self, outcaps)))
+ return FALSE;
+ }
+
+ if (!pool)
+ pool = gst_va_pool_new ();
+
+ config = gst_buffer_pool_get_config (pool);
+ gst_buffer_pool_config_set_allocator (config, allocator, ¶ms);
+ gst_buffer_pool_config_add_option (config, GST_BUFFER_POOL_OPTION_VIDEO_META);
+ gst_buffer_pool_config_set_params (config, outcaps, size, min, max);
+ gst_buffer_pool_config_set_va_allocation_params (config, usage_hint);
+ if (!gst_buffer_pool_set_config (pool, config)) {
+ gst_object_unref (allocator);
+ gst_object_unref (pool);
+ return FALSE;
+ }
+
+ if (GST_IS_VA_DMABUF_ALLOCATOR (allocator)) {
+ gst_va_dmabuf_allocator_get_format (allocator, &self->priv->srcpad_info,
+ NULL);
+ } else if (GST_IS_VA_ALLOCATOR (allocator)) {
+ gst_va_allocator_get_format (allocator, &self->priv->srcpad_info, NULL);
+ }
+
+ if (update_allocator)
+ gst_query_set_nth_allocation_param (query, 0, allocator, ¶ms);
+ else
+ gst_query_add_allocation_param (query, allocator, ¶ms);
+
+ if (update_pool)
+ gst_query_set_nth_allocation_pool (query, 0, pool, size, min, max);
+ else
+ gst_query_add_allocation_pool (query, pool, size, min, max);
+
+ has_videometa = gst_query_find_allocation_meta (query,
+ GST_VIDEO_META_API_TYPE, NULL);
+
+ copy_frames = (!has_videometa && gst_va_pool_requires_video_meta (pool)
+ && gst_caps_is_raw (outcaps));
+ if (copy_frames) {
+ if (other_pool) {
+ gst_object_replace ((GstObject **) & self->priv->other_pool,
+ (GstObject *) other_pool);
+ } else {
+ self->priv->other_pool =
+ _create_other_pool (other_allocator, &other_params, outcaps, size);
+ }
+ GST_DEBUG_OBJECT (self, "Use the other pool for copy %" GST_PTR_FORMAT,
+ self->priv->other_pool);
+ } else {
+ gst_clear_object (&self->priv->other_pool);
+ }
+
+ GST_DEBUG_OBJECT (self,
+ "decided pool %" GST_PTR_FORMAT " with allocator %" GST_PTR_FORMAT,
+ pool, allocator);
+
+ gst_object_unref (allocator);
+ gst_object_unref (pool);
+ gst_clear_object (&other_allocator);
+ gst_clear_object (&other_pool);
+
+ /* removes allocation metas */
+ return GST_BASE_TRANSFORM_CLASS (parent_class)->decide_allocation (trans,
+ query);
+
+}
+
+/* output buffers must be from our VA-based pool, they cannot be
+ * system-allocated */
+static gboolean
+gst_va_base_transform_transform_size (GstBaseTransform * trans,
+ GstPadDirection direction, GstCaps * caps, gsize size,
+ GstCaps * othercaps, gsize * othersize)
+{
+ return FALSE;
+}
+
+static GstFlowReturn
+gst_va_base_transform_generate_output (GstBaseTransform * trans,
+ GstBuffer ** outbuf)
+{
+ GstVaBaseTransform *self = GST_VA_BASE_TRANSFORM (trans);
+ GstVideoFrame src_frame;
+ GstVideoFrame dest_frame;
+ GstBuffer *buffer = NULL;
+ GstFlowReturn ret;
+
+ ret = GST_BASE_TRANSFORM_CLASS (parent_class)->generate_output (trans,
+ outbuf);
+
+ if (ret != GST_FLOW_OK || *outbuf == NULL)
+ return ret;
+
+ if (!self->priv->other_pool)
+ return GST_FLOW_OK;
+
+ /* Now need to copy the output buffer */
+ ret = GST_FLOW_ERROR;
+
+ if (!gst_buffer_pool_set_active (self->priv->other_pool, TRUE)) {
+ GST_WARNING_OBJECT (self, "failed to active the other pool %"
+ GST_PTR_FORMAT, self->priv->other_pool);
+ goto out;
+ }
+
+ ret = gst_buffer_pool_acquire_buffer (self->priv->other_pool, &buffer, NULL);
+ if (ret != GST_FLOW_OK)
+ goto out;
+
+ if (!gst_video_frame_map (&src_frame, &self->priv->srcpad_info, *outbuf,
+ GST_MAP_READ))
+ goto out;
+
+ if (!gst_video_frame_map (&dest_frame, &self->out_info, buffer,
+ GST_MAP_WRITE)) {
+ gst_video_frame_unmap (&src_frame);
+ goto out;
+ }
+
+ if (!gst_video_frame_copy (&dest_frame, &src_frame)) {
+ gst_video_frame_unmap (&src_frame);
+ gst_video_frame_unmap (&dest_frame);
+ goto out;
+ }
+
+ gst_video_frame_unmap (&src_frame);
+ gst_video_frame_unmap (&dest_frame);
+
+ gst_buffer_replace (outbuf, buffer);
+ ret = GST_FLOW_OK;
+
+out:
+ gst_clear_buffer (&buffer);
+ return ret;
+}
+
+static GstStateChangeReturn
+gst_va_base_transform_change_state (GstElement * element,
+ GstStateChange transition)
+{
+ GstVaBaseTransform *self = GST_VA_BASE_TRANSFORM (element);
+ GstVaBaseTransformClass *klass = GST_VA_BASE_TRANSFORM_GET_CLASS (element);
+ GstStateChangeReturn ret;
+
+ switch (transition) {
+ case GST_STATE_CHANGE_NULL_TO_READY:
+ if (!gst_va_ensure_element_data (element, klass->render_device_path,
+ &self->display))
+ goto open_failed;
+ gst_clear_object (&self->filter);
+ self->filter = gst_va_filter_new (self->display);
+ if (!gst_va_filter_open (self->filter))
+ goto open_failed;
+ if (klass->update_properties)
+ klass->update_properties (self);
+ break;
+ default:
+ break;
+ }
+
+ ret = GST_ELEMENT_CLASS (parent_class)->change_state (element, transition);
+
+ switch (transition) {
+ case GST_STATE_CHANGE_PAUSED_TO_READY:
+ gst_va_filter_close (self->filter);
+ break;
+ case GST_STATE_CHANGE_READY_TO_NULL:
+ gst_clear_object (&self->filter);
+ gst_clear_object (&self->display);
+ break;
+ default:
+ break;
+ }
+
+ return ret;
+
+ /* Errors */
+open_failed:
+ {
+ GST_ELEMENT_ERROR (self, LIBRARY, INIT, (NULL), ("Failed to open VPP"));
+ return GST_STATE_CHANGE_FAILURE;
+ }
+}
+
+static void
+gst_va_base_transform_set_context (GstElement * element, GstContext * context)
+{
+ GstVaDisplay *old_display, *new_display;
+ GstVaBaseTransform *self = GST_VA_BASE_TRANSFORM (element);
+ GstVaBaseTransformClass *klass = GST_VA_BASE_TRANSFORM_GET_CLASS (self);
+ gboolean ret;
+
+ old_display = self->display ? gst_object_ref (self->display) : NULL;
+ ret = gst_va_handle_set_context (element, context, klass->render_device_path,
+ &self->display);
+ new_display = self->display ? gst_object_ref (self->display) : NULL;
+
+ if (!ret
+ || (old_display && new_display && old_display != new_display
+ && self->filter)) {
+ GST_ELEMENT_WARNING (element, RESOURCE, BUSY,
+ ("Can't replace VA display while operating"), (NULL));
+ }
+
+ gst_clear_object (&old_display);
+ gst_clear_object (&new_display);
+
+ GST_ELEMENT_CLASS (parent_class)->set_context (element, context);
+}
+
+static void
+gst_va_base_transform_class_init (GstVaBaseTransformClass * klass)
+{
+ GObjectClass *gobject_class;
+ GstElementClass *element_class;
+ GstBaseTransformClass *trans_class;
+
+ gobject_class = G_OBJECT_CLASS (klass);
+ element_class = GST_ELEMENT_CLASS (klass);
+ trans_class = GST_BASE_TRANSFORM_CLASS (klass);
+
+ gobject_class->dispose = gst_va_base_transform_dispose;
+
+ trans_class->query = GST_DEBUG_FUNCPTR (gst_va_base_transform_query);
+ trans_class->set_caps = GST_DEBUG_FUNCPTR (gst_va_base_transform_set_caps);
+ trans_class->propose_allocation =
+ GST_DEBUG_FUNCPTR (gst_va_base_transform_propose_allocation);
+ trans_class->decide_allocation =
+ GST_DEBUG_FUNCPTR (gst_va_base_transform_decide_allocation);
+ trans_class->transform_size =
+ GST_DEBUG_FUNCPTR (gst_va_base_transform_transform_size);
+ trans_class->generate_output =
+ GST_DEBUG_FUNCPTR (gst_va_base_transform_generate_output);
+
+ element_class->set_context =
+ GST_DEBUG_FUNCPTR (gst_va_base_transform_set_context);
+ element_class->change_state =
+ GST_DEBUG_FUNCPTR (gst_va_base_transform_change_state);
+}
+
+GstAllocator *
+gst_va_base_transform_allocator_from_caps (GstVaBaseTransform * self,
+ GstCaps * caps)
+{
+ GstAllocator *allocator = NULL;
+
+ if (gst_caps_is_dmabuf (caps)) {
+ allocator = gst_va_dmabuf_allocator_new (self->display);
+ } else {
+ GArray *surface_formats = gst_va_filter_get_surface_formats (self->filter);
+ allocator = gst_va_allocator_new (self->display, surface_formats);
+ }
+
+ return allocator;
+}
+
+static inline gsize
+_get_plane_data_size (GstVideoInfo * info, guint plane)
+{
+ gint height, padded_height;
+
+ height = GST_VIDEO_INFO_HEIGHT (info);
+ padded_height =
+ GST_VIDEO_FORMAT_INFO_SCALE_HEIGHT (info->finfo, plane, height);
+
+ return GST_VIDEO_INFO_PLANE_STRIDE (info, plane) * padded_height;
+}
+
+static gboolean
+_try_import_dmabuf_unlocked (GstVaBaseTransform * self, GstBuffer * inbuf)
+{
+ GstVaBaseTransform *btrans = GST_VA_BASE_TRANSFORM (self);
+ GstVideoMeta *meta;
+ GstVideoInfo in_info = btrans->in_info;
+ GstMemory *mems[GST_VIDEO_MAX_PLANES];
+ guint i, n_mem, n_planes;
+ gsize offset[GST_VIDEO_MAX_PLANES];
+ uintptr_t fd[GST_VIDEO_MAX_PLANES];
+
+ n_planes = GST_VIDEO_INFO_N_PLANES (&in_info);
+ n_mem = gst_buffer_n_memory (inbuf);
+ meta = gst_buffer_get_video_meta (inbuf);
+
+ /* This will eliminate most non-dmabuf out there */
+ if (!gst_is_dmabuf_memory (gst_buffer_peek_memory (inbuf, 0)))
+ return FALSE;
+
+ /* We cannot have multiple dmabuf per plane */
+ if (n_mem > n_planes)
+ return FALSE;
+
+ /* Update video info based on video meta */
+ if (meta) {
+ GST_VIDEO_INFO_WIDTH (&in_info) = meta->width;
+ GST_VIDEO_INFO_HEIGHT (&in_info) = meta->height;
+
+ for (i = 0; i < meta->n_planes; i++) {
+ GST_VIDEO_INFO_PLANE_OFFSET (&in_info, i) = meta->offset[i];
+ GST_VIDEO_INFO_PLANE_STRIDE (&in_info, i) = meta->stride[i];
+ }
+ }
+
+ /* Find and validate all memories */
+ for (i = 0; i < n_planes; i++) {
+ guint plane_size;
+ guint length;
+ guint mem_idx;
+ gsize mem_skip;
+
+ plane_size = _get_plane_data_size (&in_info, i);
+
+ if (!gst_buffer_find_memory (inbuf, in_info.offset[i], plane_size,
+ &mem_idx, &length, &mem_skip))
+ return FALSE;
+
+ /* We can't have more then one dmabuf per plane */
+ if (length != 1)
+ return FALSE;
+
+ mems[i] = gst_buffer_peek_memory (inbuf, mem_idx);
+
+ /* And all memory found must be dmabuf */
+ if (!gst_is_dmabuf_memory (mems[i]))
+ return FALSE;
+
+ offset[i] = mems[i]->offset + mem_skip;
+ fd[i] = gst_dmabuf_memory_get_fd (mems[i]);
+ }
+
+ /* Now create a VASurfaceID for the buffer */
+ return gst_va_dmabuf_memories_setup (btrans->display, &in_info, n_planes,
+ mems, fd, offset, VA_SURFACE_ATTRIB_USAGE_HINT_VPP_READ);
+}
+
+static GstBufferPool *
+_get_sinkpad_pool (GstVaBaseTransform * self)
+{
+ GstAllocator *allocator;
+ GstAllocationParams params = { 0, };
+ GstCaps *caps;
+ GstVideoInfo in_info;
+ guint size, usage_hint = VA_SURFACE_ATTRIB_USAGE_HINT_VPP_READ;
+
+ if (self->priv->sinkpad_pool)
+ return self->priv->sinkpad_pool;
+
+ gst_allocation_params_init (¶ms);
+
+ if (self->priv->sinkpad_caps) {
+ caps = self->priv->sinkpad_caps;
+ gst_video_info_from_caps (&in_info, caps);
+ } else {
+ caps = self->in_caps;
+ in_info = self->in_info;
+ }
+
+ size = GST_VIDEO_INFO_SIZE (&in_info);
+
+ allocator = gst_va_base_transform_allocator_from_caps (self, caps);
+ self->priv->sinkpad_pool = gst_va_pool_new_with_config (caps, size, 1, 0,
+ usage_hint, allocator, ¶ms);
+ if (!self->priv->sinkpad_pool) {
+ gst_object_unref (allocator);
+ return NULL;
+ }
+
+ if (GST_IS_VA_DMABUF_ALLOCATOR (allocator)) {
+ gst_va_dmabuf_allocator_get_format (allocator, &self->priv->sinkpad_info,
+ NULL);
+ } else if (GST_IS_VA_ALLOCATOR (allocator)) {
+ gst_va_allocator_get_format (allocator, &self->priv->sinkpad_info, NULL);
+ }
+
+ gst_object_unref (allocator);
+
+ gst_buffer_pool_set_active (self->priv->sinkpad_pool, TRUE);
+
+ return self->priv->sinkpad_pool;
+}
+
+static gboolean
+_try_import_buffer (GstVaBaseTransform * self, GstBuffer * inbuf)
+{
+ VASurfaceID surface;
+ gboolean ret;
+
+ surface = gst_va_buffer_get_surface (inbuf);
+ if (surface != VA_INVALID_ID)
+ return TRUE;
+
+ g_rec_mutex_lock (&GST_VA_SHARED_LOCK);
+ ret = _try_import_dmabuf_unlocked (self, inbuf);
+ g_rec_mutex_unlock (&GST_VA_SHARED_LOCK);
+
+ return ret;
+}
+
+GstFlowReturn
+gst_va_base_transform_import_buffer (GstVaBaseTransform * self,
+ GstBuffer * inbuf, GstBuffer ** buf)
+{
+ GstBuffer *buffer = NULL;
+ GstBufferPool *pool;
+ GstFlowReturn ret;
+ GstVideoFrame in_frame, out_frame;
+ gboolean imported, copied;
+
+ imported = _try_import_buffer (self, inbuf);
+ if (imported) {
+ *buf = gst_buffer_ref (inbuf);
+ return GST_FLOW_OK;
+ }
+
+ /* input buffer doesn't come from a vapool, thus it is required to
+ * have a pool, grab from it a new buffer and copy the input
+ * buffer to the new one */
+ if (!(pool = _get_sinkpad_pool (self)))
+ return GST_FLOW_ERROR;
+
+ ret = gst_buffer_pool_acquire_buffer (pool, &buffer, NULL);
+ if (ret != GST_FLOW_OK)
+ return ret;
+
+ GST_LOG_OBJECT (self, "copying input frame");
+
+ if (!gst_video_frame_map (&in_frame, &self->in_info, inbuf, GST_MAP_READ))
+ goto invalid_buffer;
+
+ if (!gst_video_frame_map (&out_frame, &self->priv->sinkpad_info, buffer,
+ GST_MAP_WRITE)) {
+ gst_video_frame_unmap (&in_frame);
+ goto invalid_buffer;
+ }
+
+ copied = gst_video_frame_copy (&out_frame, &in_frame);
+
+ gst_video_frame_unmap (&out_frame);
+ gst_video_frame_unmap (&in_frame);
+
+ if (!copied)
+ goto invalid_buffer;
+
+ /* strictly speaking this is not needed but let's play safe */
+ if (!gst_buffer_copy_into (buffer, inbuf, GST_BUFFER_COPY_FLAGS |
+ GST_BUFFER_COPY_TIMESTAMPS, 0, -1))
+ return GST_FLOW_ERROR;
+
+ *buf = buffer;
+
+ return GST_FLOW_OK;
+
+invalid_buffer:
+ {
+ GST_ELEMENT_WARNING (self, CORE, NOT_IMPLEMENTED, (NULL),
+ ("invalid video buffer received"));
+ if (buffer)
+ gst_buffer_unref (buffer);
+ return GST_FLOW_OK;
+ }
+}
projects / platform / upstream / gstreamer.git / commitdiff