2 * Copyright (C) 2019 Seungha Yang <seungha.yang@navercorp.com>
3 * Copyright (C) 2020 Seungha Yang <seungha@centricular.com>
5 * This library is free software; you can redistribute it and/or
6 * modify it under the terms of the GNU Library General Public
7 * License as published by the Free Software Foundation; either
8 * version 2 of the License, or (at your option) any later version.
10 * This library is distributed in the hope that it will be useful,
11 * but WITHOUT ANY WARRANTY; without even the implied warranty of
12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
13 * Library General Public License for more details.
15 * You should have received a copy of the GNU Library General Public
16 * License along with this library; if not, write to the
17 * Free Software Foundation, Inc., 51 Franklin St, Fifth Floor,
18 * Boston, MA 02110-1301, USA.
25 #include "gstd3d11bufferpool.h"
26 #include "gstd3d11memory.h"
27 #include "gstd3d11device.h"
28 #include "gstd3d11utils.h"
33 * SECTION:gstd3d11bufferpool
34 * @title: GstD3D11BufferPool
35 * @short_description: buffer pool for #GstD3D11Memory objects
36 * @see_also: #GstBufferPool, #GstGLMemory
38 * a #GstD3D11BufferPool is an object that allocates buffers with #GstD3D11Memory
40 * A #GstGLBufferPool is created with gst_d3d11_buffer_pool_new()
43 GST_DEBUG_CATEGORY_STATIC (gst_d3d11_buffer_pool_debug);
44 #define GST_CAT_DEFAULT gst_d3d11_buffer_pool_debug
46 struct _GstD3D11BufferPoolPrivate
48 GstD3D11Allocator *alloc[GST_VIDEO_MAX_PLANES];
50 GstD3D11AllocationParams *d3d11_params;
51 gboolean texture_array_pool;
53 gint stride[GST_VIDEO_MAX_PLANES];
54 gsize offset[GST_VIDEO_MAX_PLANES];
57 #define gst_d3d11_buffer_pool_parent_class parent_class
58 G_DEFINE_TYPE_WITH_PRIVATE (GstD3D11BufferPool,
59 gst_d3d11_buffer_pool, GST_TYPE_BUFFER_POOL);
61 static void gst_d3d11_buffer_pool_dispose (GObject * object);
62 static const gchar **gst_d3d11_buffer_pool_get_options (GstBufferPool * pool);
63 static gboolean gst_d3d11_buffer_pool_set_config (GstBufferPool * pool,
64 GstStructure * config);
65 static GstFlowReturn gst_d3d11_buffer_pool_alloc_buffer (GstBufferPool * pool,
66 GstBuffer ** buffer, GstBufferPoolAcquireParams * params);
67 static GstFlowReturn gst_d3d11_buffer_pool_acquire_buffer (GstBufferPool * pool,
68 GstBuffer ** buffer, GstBufferPoolAcquireParams * params);
69 static void gst_d3d11_buffer_pool_reset_buffer (GstBufferPool * pool,
71 static gboolean gst_d3d11_buffer_pool_start (GstBufferPool * pool);
72 static gboolean gst_d3d11_buffer_pool_stop (GstBufferPool * pool);
75 gst_d3d11_buffer_pool_class_init (GstD3D11BufferPoolClass * klass)
77 GObjectClass *gobject_class = G_OBJECT_CLASS (klass);
78 GstBufferPoolClass *bufferpool_class = GST_BUFFER_POOL_CLASS (klass);
80 gobject_class->dispose = gst_d3d11_buffer_pool_dispose;
82 bufferpool_class->get_options = gst_d3d11_buffer_pool_get_options;
83 bufferpool_class->set_config = gst_d3d11_buffer_pool_set_config;
84 bufferpool_class->alloc_buffer = gst_d3d11_buffer_pool_alloc_buffer;
85 bufferpool_class->acquire_buffer = gst_d3d11_buffer_pool_acquire_buffer;
86 bufferpool_class->reset_buffer = gst_d3d11_buffer_pool_reset_buffer;
87 bufferpool_class->start = gst_d3d11_buffer_pool_start;
88 bufferpool_class->stop = gst_d3d11_buffer_pool_stop;
90 GST_DEBUG_CATEGORY_INIT (gst_d3d11_buffer_pool_debug, "d3d11bufferpool", 0,
91 "d3d11bufferpool object");
95 gst_d3d11_buffer_pool_init (GstD3D11BufferPool * self)
97 self->priv = (GstD3D11BufferPoolPrivate *)
98 gst_d3d11_buffer_pool_get_instance_private (self);
102 gst_d3d11_buffer_pool_clear_allocator (GstD3D11BufferPool * self)
104 GstD3D11BufferPoolPrivate *priv = self->priv;
107 for (i = 0; i < G_N_ELEMENTS (priv->alloc); i++) {
108 if (priv->alloc[i]) {
109 gst_d3d11_allocator_set_active (priv->alloc[i], FALSE);
110 gst_clear_object (&priv->alloc[i]);
116 gst_d3d11_buffer_pool_dispose (GObject * object)
118 GstD3D11BufferPool *self = GST_D3D11_BUFFER_POOL (object);
119 GstD3D11BufferPoolPrivate *priv = self->priv;
121 g_clear_pointer (&priv->d3d11_params, gst_d3d11_allocation_params_free);
122 gst_clear_object (&self->device);
123 gst_d3d11_buffer_pool_clear_allocator (self);
125 G_OBJECT_CLASS (parent_class)->dispose (object);
128 static const gchar **
129 gst_d3d11_buffer_pool_get_options (GstBufferPool * pool)
131 /* NOTE: d3d11 memory does not support alignment */
132 static const gchar *options[] = { GST_BUFFER_POOL_OPTION_VIDEO_META, NULL };
138 gst_d3d11_buffer_pool_set_config (GstBufferPool * pool, GstStructure * config)
140 GstD3D11BufferPool *self = GST_D3D11_BUFFER_POOL (pool);
141 GstD3D11BufferPoolPrivate *priv = self->priv;
143 GstCaps *caps = NULL;
144 guint min_buffers, max_buffers;
146 D3D11_TEXTURE2D_DESC *desc;
147 const GstD3D11Format *format;
151 if (!gst_buffer_pool_config_get_params (config, &caps, NULL, &min_buffers,
158 /* now parse the caps from the config */
159 if (!gst_video_info_from_caps (&info, caps))
162 GST_LOG_OBJECT (pool, "%dx%d, caps %" GST_PTR_FORMAT, info.width, info.height,
165 gst_d3d11_buffer_pool_clear_allocator (self);
167 memset (priv->stride, 0, sizeof (priv->stride));
168 memset (priv->offset, 0, sizeof (priv->offset));
170 if (priv->d3d11_params)
171 gst_d3d11_allocation_params_free (priv->d3d11_params);
173 gst_buffer_pool_config_get_d3d11_allocation_params (config);
174 if (!priv->d3d11_params) {
175 /* allocate memory with resource format by default */
177 gst_d3d11_allocation_params_new (self->device,
178 &info, (GstD3D11AllocationFlags) 0, 0);
181 desc = priv->d3d11_params->desc;
183 /* resolution of semi-planar formats must be multiple of 2 */
184 if (desc[0].Format == DXGI_FORMAT_NV12 || desc[0].Format == DXGI_FORMAT_P010
185 || desc[0].Format == DXGI_FORMAT_P016) {
186 if (desc[0].Width % 2 || desc[0].Height % 2) {
188 GstVideoAlignment align;
190 GST_WARNING_OBJECT (self, "Resolution %dx%d is not mutiple of 2, fixing",
191 desc[0].Width, desc[0].Height);
193 width = GST_ROUND_UP_2 (desc[0].Width);
194 height = GST_ROUND_UP_2 (desc[0].Height);
196 gst_video_alignment_reset (&align);
197 align.padding_right = width - desc[0].Width;
198 align.padding_bottom = height - desc[0].Height;
200 gst_d3d11_allocation_params_alignment (priv->d3d11_params, &align);
203 #ifndef GST_DISABLE_GST_DEBUG
205 GST_LOG_OBJECT (self, "Direct3D11 Allocation params");
206 GST_LOG_OBJECT (self, "\tD3D11AllocationFlags: 0x%x",
207 priv->d3d11_params->flags);
208 for (i = 0; GST_VIDEO_MAX_PLANES; i++) {
209 if (desc[i].Format == DXGI_FORMAT_UNKNOWN)
211 GST_LOG_OBJECT (self, "\t[plane %d] %dx%d, DXGI format %d",
212 i, desc[i].Width, desc[i].Height, desc[i].Format);
213 GST_LOG_OBJECT (self, "\t[plane %d] MipLevel %d, ArraySize %d",
214 i, desc[i].MipLevels, desc[i].ArraySize);
215 GST_LOG_OBJECT (self,
216 "\t[plane %d] SampleDesc.Count %d, SampleDesc.Quality %d",
217 i, desc[i].SampleDesc.Count, desc[i].SampleDesc.Quality);
218 GST_LOG_OBJECT (self, "\t[plane %d] Usage %d", i, desc[i].Usage);
219 GST_LOG_OBJECT (self,
220 "\t[plane %d] BindFlags 0x%x", i, desc[i].BindFlags);
221 GST_LOG_OBJECT (self,
222 "\t[plane %d] CPUAccessFlags 0x%x", i, desc[i].CPUAccessFlags);
223 GST_LOG_OBJECT (self,
224 "\t[plane %d] MiscFlags 0x%x", i, desc[i].MiscFlags);
229 if ((priv->d3d11_params->flags & GST_D3D11_ALLOCATION_FLAG_TEXTURE_ARRAY)) {
230 guint max_array_size = 0;
232 for (i = 0; i < GST_VIDEO_MAX_PLANES; i++) {
233 if (desc[i].Format == DXGI_FORMAT_UNKNOWN)
236 if (desc[i].ArraySize > max_array_size)
237 max_array_size = desc[i].ArraySize;
240 if (max_buffers == 0 || max_buffers > max_array_size) {
241 GST_WARNING_OBJECT (pool,
242 "Array pool is requested but allowed pool size %d > ArraySize %d",
243 max_buffers, max_array_size);
244 max_buffers = max_array_size;
247 priv->texture_array_pool = TRUE;
249 priv->texture_array_pool = FALSE;
253 for (i = 0; i < GST_VIDEO_MAX_PLANES; i++) {
254 GstD3D11Allocator *alloc;
255 GstD3D11PoolAllocator *pool_alloc;
256 GstFlowReturn flow_ret;
257 GstMemory *mem = NULL;
260 if (desc[i].Format == DXGI_FORMAT_UNKNOWN)
264 (GstD3D11Allocator *) gst_d3d11_pool_allocator_new (self->device,
266 if (!gst_d3d11_allocator_set_active (alloc, TRUE)) {
267 GST_ERROR_OBJECT (self, "Failed to activate allocator");
268 gst_object_unref (alloc);
272 pool_alloc = GST_D3D11_POOL_ALLOCATOR (alloc);
273 flow_ret = gst_d3d11_pool_allocator_acquire_memory (pool_alloc, &mem);
274 if (flow_ret != GST_FLOW_OK) {
275 GST_ERROR_OBJECT (self, "Failed to allocate initial memory");
276 gst_d3d11_allocator_set_active (alloc, FALSE);
277 gst_object_unref (alloc);
281 if (!gst_d3d11_memory_get_texture_stride (GST_D3D11_MEMORY_CAST (mem),
282 &stride) || stride < desc[i].Width) {
283 GST_ERROR_OBJECT (self, "Failed to calculate stride");
285 gst_d3d11_allocator_set_active (alloc, FALSE);
286 gst_object_unref (alloc);
287 gst_memory_unref (mem);
292 priv->stride[i] = stride;
293 priv->offset[i] = offset;
296 priv->alloc[i] = alloc;
298 gst_memory_unref (mem);
301 g_assert (priv->d3d11_params->d3d11_format != NULL);
302 format = priv->d3d11_params->d3d11_format;
303 /* single texture semi-planar formats */
304 if (format->dxgi_format != DXGI_FORMAT_UNKNOWN &&
305 GST_VIDEO_INFO_N_PLANES (&info) == 2) {
306 priv->stride[1] = priv->stride[0];
307 priv->offset[1] = priv->stride[0] * desc[0].Height;
310 gst_buffer_pool_config_set_params (config,
311 caps, offset, min_buffers, max_buffers);
313 return GST_BUFFER_POOL_CLASS (parent_class)->set_config (pool, config) && ret;
318 GST_WARNING_OBJECT (pool, "invalid config");
323 GST_WARNING_OBJECT (pool, "no caps in config");
328 GST_WARNING_OBJECT (pool,
329 "failed getting geometry from caps %" GST_PTR_FORMAT, caps);
335 gst_d3d11_buffer_pool_fill_buffer (GstD3D11BufferPool * self, GstBuffer * buf)
337 GstD3D11BufferPoolPrivate *priv = self->priv;
338 GstFlowReturn ret = GST_FLOW_OK;
341 for (i = 0; i < G_N_ELEMENTS (priv->alloc); i++) {
342 GstMemory *mem = NULL;
343 GstD3D11PoolAllocator *alloc = GST_D3D11_POOL_ALLOCATOR (priv->alloc[i]);
348 ret = gst_d3d11_pool_allocator_acquire_memory (alloc, &mem);
349 if (ret != GST_FLOW_OK) {
350 GST_WARNING_OBJECT (self, "Failed to acquire memory, ret %s",
351 gst_flow_get_name (ret));
355 gst_buffer_append_memory (buf, mem);
362 gst_d3d11_buffer_pool_alloc_buffer (GstBufferPool * pool, GstBuffer ** buffer,
363 GstBufferPoolAcquireParams * params)
365 GstD3D11BufferPool *self = GST_D3D11_BUFFER_POOL (pool);
366 GstD3D11BufferPoolPrivate *priv = self->priv;
367 GstD3D11AllocationParams *d3d11_params = priv->d3d11_params;
368 GstVideoInfo *info = &d3d11_params->info;
370 GstFlowReturn ret = GST_FLOW_OK;
372 buf = gst_buffer_new ();
373 /* For texture-array case, we release memory in reset_buffer() so that it can
374 * be returned to allocator. So our acquire_buffer() method is expecting
375 * empty buffer in that case. Don't fill memory here for non-texture-array */
376 if (!priv->texture_array_pool) {
377 ret = gst_d3d11_buffer_pool_fill_buffer (self, buf);
378 if (ret != GST_FLOW_OK) {
379 gst_buffer_unref (buf);
384 gst_buffer_add_video_meta_full (buf, GST_VIDEO_FRAME_FLAG_NONE,
385 GST_VIDEO_INFO_FORMAT (info), GST_VIDEO_INFO_WIDTH (info),
386 GST_VIDEO_INFO_HEIGHT (info), GST_VIDEO_INFO_N_PLANES (info),
387 priv->offset, priv->stride);
395 gst_d3d11_buffer_pool_acquire_buffer (GstBufferPool * pool,
396 GstBuffer ** buffer, GstBufferPoolAcquireParams * params)
398 GstD3D11BufferPool *self = GST_D3D11_BUFFER_POOL (pool);
399 GstD3D11BufferPoolPrivate *priv = self->priv;
402 ret = GST_BUFFER_POOL_CLASS (parent_class)->acquire_buffer (pool,
405 if (ret != GST_FLOW_OK)
408 /* Don't need special handling for non-texture-array case */
409 if (!priv->texture_array_pool)
412 /* Baseclass will hold empty buffer in this case, fill GstMemory */
413 g_assert (gst_buffer_n_memory (*buffer) == 0);
415 return gst_d3d11_buffer_pool_fill_buffer (self, *buffer);
419 gst_d3d11_buffer_pool_reset_buffer (GstBufferPool * pool, GstBuffer * buffer)
421 GstD3D11BufferPool *self = GST_D3D11_BUFFER_POOL (pool);
422 GstD3D11BufferPoolPrivate *priv = self->priv;
424 /* if we are using texture array, return memory to allocator, so that
425 * memory pool allocator can wake up if it's waiting for available memory */
426 if (priv->texture_array_pool) {
427 GST_LOG_OBJECT (self, "Returning memory to allocator");
428 gst_buffer_remove_all_memory (buffer);
431 GST_BUFFER_POOL_CLASS (parent_class)->reset_buffer (pool, buffer);
432 GST_BUFFER_FLAGS (buffer) = 0;
436 gst_d3d11_buffer_pool_start (GstBufferPool * pool)
438 GstD3D11BufferPool *self = GST_D3D11_BUFFER_POOL (pool);
439 GstD3D11BufferPoolPrivate *priv = self->priv;
443 GST_DEBUG_OBJECT (self, "Start");
445 for (i = 0; i < G_N_ELEMENTS (priv->alloc); i++) {
446 GstD3D11Allocator *alloc = priv->alloc[i];
451 if (!gst_d3d11_allocator_set_active (alloc, TRUE)) {
452 GST_ERROR_OBJECT (self, "Failed to activate allocator");
457 ret = GST_BUFFER_POOL_CLASS (parent_class)->start (pool);
459 GST_ERROR_OBJECT (self, "Failed to start");
461 for (i = 0; i < G_N_ELEMENTS (priv->alloc); i++) {
462 GstD3D11Allocator *alloc = priv->alloc[i];
467 gst_d3d11_allocator_set_active (alloc, FALSE);
477 gst_d3d11_buffer_pool_stop (GstBufferPool * pool)
479 GstD3D11BufferPool *self = GST_D3D11_BUFFER_POOL (pool);
480 GstD3D11BufferPoolPrivate *priv = self->priv;
483 GST_DEBUG_OBJECT (self, "Stop");
485 for (i = 0; i < G_N_ELEMENTS (priv->alloc); i++) {
486 GstD3D11Allocator *alloc = priv->alloc[i];
491 if (!gst_d3d11_allocator_set_active (alloc, FALSE)) {
492 GST_ERROR_OBJECT (self, "Failed to deactivate allocator");
497 return GST_BUFFER_POOL_CLASS (parent_class)->stop (pool);
501 * gst_d3d11_buffer_pool_new:
502 * @device: a #GstD3D11Device to use
504 * Returns: a #GstBufferPool that allocates buffers with #GstD3D11Memory
509 gst_d3d11_buffer_pool_new (GstD3D11Device * device)
511 GstD3D11BufferPool *pool;
513 g_return_val_if_fail (GST_IS_D3D11_DEVICE (device), NULL);
515 pool = (GstD3D11BufferPool *) g_object_new (GST_TYPE_D3D11_BUFFER_POOL, NULL);
516 gst_object_ref_sink (pool);
518 pool->device = (GstD3D11Device *) gst_object_ref (device);
520 return GST_BUFFER_POOL_CAST (pool);
524 * gst_buffer_pool_config_get_d3d11_allocation_params:
525 * @config: a buffer pool config
527 * Returns: (transfer full) (nullable): the currently configured
528 * #GstD3D11AllocationParams on @config or %NULL if @config doesn't contain
529 * #GstD3D11AllocationParams
533 GstD3D11AllocationParams *
534 gst_buffer_pool_config_get_d3d11_allocation_params (GstStructure * config)
536 GstD3D11AllocationParams *ret;
538 if (!gst_structure_get (config, "d3d11-allocation-params",
539 GST_TYPE_D3D11_ALLOCATION_PARAMS, &ret, NULL))
546 * gst_buffer_pool_config_set_d3d11_allocation_params:
547 * @config: a buffer pool config
548 * @params: (transfer none): a #GstD3D11AllocationParams
550 * Sets @params on @config
555 gst_buffer_pool_config_set_d3d11_allocation_params (GstStructure * config,
556 GstD3D11AllocationParams * params)
558 g_return_if_fail (config != NULL);
559 g_return_if_fail (params != NULL);
561 gst_structure_set (config, "d3d11-allocation-params",
562 GST_TYPE_D3D11_ALLOCATION_PARAMS, params, NULL);