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"
29 #include "gstd3d11-private.h"
34 * SECTION:gstd3d11bufferpool
35 * @title: GstD3D11BufferPool
36 * @short_description: buffer pool for GstD3D11Memory object
37 * @see_also: #GstBufferPool, #GstD3D11Memory
39 * This GstD3D11BufferPool is an object that allocates buffers
40 * with #GstD3D11Memory
45 GST_DEBUG_CATEGORY_STATIC (gst_d3d11_buffer_pool_debug);
46 #define GST_CAT_DEFAULT gst_d3d11_buffer_pool_debug
48 struct _GstD3D11BufferPoolPrivate
50 GstD3D11Allocator *alloc[GST_VIDEO_MAX_PLANES];
52 GstD3D11AllocationParams *d3d11_params;
53 gboolean texture_array_pool;
55 gint stride[GST_VIDEO_MAX_PLANES];
56 gsize offset[GST_VIDEO_MAX_PLANES];
59 #define gst_d3d11_buffer_pool_parent_class parent_class
60 G_DEFINE_TYPE_WITH_PRIVATE (GstD3D11BufferPool,
61 gst_d3d11_buffer_pool, GST_TYPE_BUFFER_POOL);
63 static void gst_d3d11_buffer_pool_dispose (GObject * object);
64 static const gchar **gst_d3d11_buffer_pool_get_options (GstBufferPool * pool);
65 static gboolean gst_d3d11_buffer_pool_set_config (GstBufferPool * pool,
66 GstStructure * config);
67 static GstFlowReturn gst_d3d11_buffer_pool_alloc_buffer (GstBufferPool * pool,
68 GstBuffer ** buffer, GstBufferPoolAcquireParams * params);
69 static GstFlowReturn gst_d3d11_buffer_pool_acquire_buffer (GstBufferPool * pool,
70 GstBuffer ** buffer, GstBufferPoolAcquireParams * params);
71 static void gst_d3d11_buffer_pool_reset_buffer (GstBufferPool * pool,
73 static gboolean gst_d3d11_buffer_pool_start (GstBufferPool * pool);
74 static gboolean gst_d3d11_buffer_pool_stop (GstBufferPool * pool);
77 gst_d3d11_buffer_pool_class_init (GstD3D11BufferPoolClass * klass)
79 GObjectClass *gobject_class = G_OBJECT_CLASS (klass);
80 GstBufferPoolClass *bufferpool_class = GST_BUFFER_POOL_CLASS (klass);
82 gobject_class->dispose = gst_d3d11_buffer_pool_dispose;
84 bufferpool_class->get_options = gst_d3d11_buffer_pool_get_options;
85 bufferpool_class->set_config = gst_d3d11_buffer_pool_set_config;
86 bufferpool_class->alloc_buffer = gst_d3d11_buffer_pool_alloc_buffer;
87 bufferpool_class->acquire_buffer = gst_d3d11_buffer_pool_acquire_buffer;
88 bufferpool_class->reset_buffer = gst_d3d11_buffer_pool_reset_buffer;
89 bufferpool_class->start = gst_d3d11_buffer_pool_start;
90 bufferpool_class->stop = gst_d3d11_buffer_pool_stop;
92 GST_DEBUG_CATEGORY_INIT (gst_d3d11_buffer_pool_debug, "d3d11bufferpool", 0,
93 "d3d11bufferpool object");
97 gst_d3d11_buffer_pool_init (GstD3D11BufferPool * self)
99 self->priv = (GstD3D11BufferPoolPrivate *)
100 gst_d3d11_buffer_pool_get_instance_private (self);
104 gst_d3d11_buffer_pool_clear_allocator (GstD3D11BufferPool * self)
106 GstD3D11BufferPoolPrivate *priv = self->priv;
109 for (i = 0; i < G_N_ELEMENTS (priv->alloc); i++) {
110 if (priv->alloc[i]) {
111 gst_d3d11_allocator_set_active (priv->alloc[i], FALSE);
112 gst_clear_object (&priv->alloc[i]);
118 gst_d3d11_buffer_pool_dispose (GObject * object)
120 GstD3D11BufferPool *self = GST_D3D11_BUFFER_POOL (object);
121 GstD3D11BufferPoolPrivate *priv = self->priv;
123 g_clear_pointer (&priv->d3d11_params, gst_d3d11_allocation_params_free);
124 gst_clear_object (&self->device);
125 gst_d3d11_buffer_pool_clear_allocator (self);
127 G_OBJECT_CLASS (parent_class)->dispose (object);
130 static const gchar **
131 gst_d3d11_buffer_pool_get_options (GstBufferPool * pool)
133 /* NOTE: d3d11 memory does not support alignment */
134 static const gchar *options[] = { GST_BUFFER_POOL_OPTION_VIDEO_META, NULL };
140 gst_d3d11_buffer_pool_set_config (GstBufferPool * pool, GstStructure * config)
142 GstD3D11BufferPool *self = GST_D3D11_BUFFER_POOL (pool);
143 GstD3D11BufferPoolPrivate *priv = self->priv;
145 GstCaps *caps = NULL;
146 guint min_buffers, max_buffers;
148 D3D11_TEXTURE2D_DESC *desc;
149 const GstD3D11Format *format;
154 if (!gst_buffer_pool_config_get_params (config, &caps, NULL, &min_buffers,
161 /* now parse the caps from the config */
162 if (!gst_video_info_from_caps (&info, caps))
165 GST_LOG_OBJECT (pool, "%dx%d, caps %" GST_PTR_FORMAT, info.width, info.height,
168 gst_d3d11_buffer_pool_clear_allocator (self);
170 memset (priv->stride, 0, sizeof (priv->stride));
171 memset (priv->offset, 0, sizeof (priv->offset));
173 if (priv->d3d11_params)
174 gst_d3d11_allocation_params_free (priv->d3d11_params);
176 gst_buffer_pool_config_get_d3d11_allocation_params (config);
177 if (!priv->d3d11_params) {
178 /* allocate memory with resource format by default */
180 gst_d3d11_allocation_params_new (self->device,
181 &info, GST_D3D11_ALLOCATION_FLAG_DEFAULT, 0, 0);
184 desc = priv->d3d11_params->desc;
185 align = gst_d3d11_dxgi_format_get_alignment (desc[0].Format);
187 /* resolution of semi-planar formats must be multiple of 2 */
188 if (align != 0 && (desc[0].Width % align || desc[0].Height % align)) {
190 GstVideoAlignment video_align;
192 GST_WARNING_OBJECT (self, "Resolution %dx%d is not mutiple of %d, fixing",
193 desc[0].Width, desc[0].Height, align);
195 width = GST_ROUND_UP_N (desc[0].Width, align);
196 height = GST_ROUND_UP_N (desc[0].Height, align);
198 gst_video_alignment_reset (&video_align);
199 video_align.padding_right = width - desc[0].Width;
200 video_align.padding_bottom = height - desc[0].Height;
202 gst_d3d11_allocation_params_alignment (priv->d3d11_params, &video_align);
204 #ifndef GST_DISABLE_GST_DEBUG
206 GST_LOG_OBJECT (self, "Direct3D11 Allocation params");
207 GST_LOG_OBJECT (self, "\tD3D11AllocationFlags: 0x%x",
208 priv->d3d11_params->flags);
209 for (i = 0; i < GST_VIDEO_MAX_PLANES; i++) {
210 if (desc[i].Format == DXGI_FORMAT_UNKNOWN)
212 GST_LOG_OBJECT (self, "\t[plane %d] %dx%d, DXGI format %d",
213 i, desc[i].Width, desc[i].Height, desc[i].Format);
214 GST_LOG_OBJECT (self, "\t[plane %d] MipLevel %d, ArraySize %d",
215 i, desc[i].MipLevels, desc[i].ArraySize);
216 GST_LOG_OBJECT (self,
217 "\t[plane %d] SampleDesc.Count %d, SampleDesc.Quality %d",
218 i, desc[i].SampleDesc.Count, desc[i].SampleDesc.Quality);
219 GST_LOG_OBJECT (self, "\t[plane %d] Usage %d", i, desc[i].Usage);
220 GST_LOG_OBJECT (self,
221 "\t[plane %d] BindFlags 0x%x", i, desc[i].BindFlags);
222 GST_LOG_OBJECT (self,
223 "\t[plane %d] CPUAccessFlags 0x%x", i, desc[i].CPUAccessFlags);
224 GST_LOG_OBJECT (self,
225 "\t[plane %d] MiscFlags 0x%x", i, desc[i].MiscFlags);
230 if ((priv->d3d11_params->flags & GST_D3D11_ALLOCATION_FLAG_TEXTURE_ARRAY)) {
231 guint max_array_size = 0;
233 for (i = 0; i < GST_VIDEO_MAX_PLANES; i++) {
234 if (desc[i].Format == DXGI_FORMAT_UNKNOWN)
237 if (desc[i].ArraySize > max_array_size)
238 max_array_size = desc[i].ArraySize;
241 if (max_buffers == 0 || max_buffers > max_array_size) {
242 GST_WARNING_OBJECT (pool,
243 "Array pool is requested but allowed pool size %d > ArraySize %d",
244 max_buffers, max_array_size);
245 max_buffers = max_array_size;
248 priv->texture_array_pool = TRUE;
250 priv->texture_array_pool = FALSE;
254 for (i = 0; i < GST_VIDEO_MAX_PLANES; i++) {
255 GstD3D11Allocator *alloc;
256 GstD3D11PoolAllocator *pool_alloc;
257 GstFlowReturn flow_ret;
258 GstMemory *mem = NULL;
261 if (desc[i].Format == DXGI_FORMAT_UNKNOWN)
265 (GstD3D11Allocator *) gst_d3d11_pool_allocator_new (self->device,
267 if (!gst_d3d11_allocator_set_active (alloc, TRUE)) {
268 GST_ERROR_OBJECT (self, "Failed to activate allocator");
269 gst_object_unref (alloc);
273 pool_alloc = GST_D3D11_POOL_ALLOCATOR (alloc);
274 flow_ret = gst_d3d11_pool_allocator_acquire_memory (pool_alloc, &mem);
275 if (flow_ret != GST_FLOW_OK) {
276 GST_ERROR_OBJECT (self, "Failed to allocate initial memory");
277 gst_d3d11_allocator_set_active (alloc, FALSE);
278 gst_object_unref (alloc);
282 if (!gst_d3d11_memory_get_resource_stride (GST_D3D11_MEMORY_CAST (mem),
283 &stride) || stride < desc[i].Width) {
284 GST_ERROR_OBJECT (self, "Failed to calculate stride");
286 gst_d3d11_allocator_set_active (alloc, FALSE);
287 gst_object_unref (alloc);
288 gst_memory_unref (mem);
293 priv->stride[i] = stride;
294 priv->offset[i] = offset;
297 priv->alloc[i] = alloc;
299 gst_memory_unref (mem);
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 /* In case of texture-array, we are releasing memory objects in
374 * the GstBufferPool::reset_buffer() so that GstD3D11Memory objects can be
375 * returned to the GstD3D11PoolAllocator. So, underlying GstD3D11Memory
376 * will be filled in the later GstBufferPool::acquire_buffer() call.
377 * Don't fill memory here for non-texture-array therefore */
378 if (!priv->texture_array_pool) {
379 ret = gst_d3d11_buffer_pool_fill_buffer (self, buf);
380 if (ret != GST_FLOW_OK) {
381 gst_buffer_unref (buf);
386 gst_buffer_add_video_meta_full (buf, GST_VIDEO_FRAME_FLAG_NONE,
387 GST_VIDEO_INFO_FORMAT (info), GST_VIDEO_INFO_WIDTH (info),
388 GST_VIDEO_INFO_HEIGHT (info), GST_VIDEO_INFO_N_PLANES (info),
389 priv->offset, priv->stride);
397 gst_d3d11_buffer_pool_acquire_buffer (GstBufferPool * pool,
398 GstBuffer ** buffer, GstBufferPoolAcquireParams * params)
400 GstD3D11BufferPool *self = GST_D3D11_BUFFER_POOL (pool);
401 GstD3D11BufferPoolPrivate *priv = self->priv;
404 ret = GST_BUFFER_POOL_CLASS (parent_class)->acquire_buffer (pool,
407 if (ret != GST_FLOW_OK)
410 /* Don't need special handling for non-texture-array case */
411 if (!priv->texture_array_pool)
414 /* Baseclass will hold empty buffer in this case, fill GstMemory */
415 g_assert (gst_buffer_n_memory (*buffer) == 0);
417 return gst_d3d11_buffer_pool_fill_buffer (self, *buffer);
421 gst_d3d11_buffer_pool_reset_buffer (GstBufferPool * pool, GstBuffer * buffer)
423 GstD3D11BufferPool *self = GST_D3D11_BUFFER_POOL (pool);
424 GstD3D11BufferPoolPrivate *priv = self->priv;
426 /* If we are using texture array, we should return GstD3D11Memory to
427 * to the GstD3D11PoolAllocator, so that the allocator can wake up
428 * if it's waiting for available memory object */
429 if (priv->texture_array_pool) {
430 GST_LOG_OBJECT (self, "Returning memory to allocator");
431 gst_buffer_remove_all_memory (buffer);
434 GST_BUFFER_POOL_CLASS (parent_class)->reset_buffer (pool, buffer);
435 GST_BUFFER_FLAGS (buffer) = 0;
439 gst_d3d11_buffer_pool_start (GstBufferPool * pool)
441 GstD3D11BufferPool *self = GST_D3D11_BUFFER_POOL (pool);
442 GstD3D11BufferPoolPrivate *priv = self->priv;
446 GST_DEBUG_OBJECT (self, "Start");
448 for (i = 0; i < G_N_ELEMENTS (priv->alloc); i++) {
449 GstD3D11Allocator *alloc = priv->alloc[i];
454 if (!gst_d3d11_allocator_set_active (alloc, TRUE)) {
455 GST_ERROR_OBJECT (self, "Failed to activate allocator");
460 ret = GST_BUFFER_POOL_CLASS (parent_class)->start (pool);
462 GST_ERROR_OBJECT (self, "Failed to start");
464 for (i = 0; i < G_N_ELEMENTS (priv->alloc); i++) {
465 GstD3D11Allocator *alloc = priv->alloc[i];
470 gst_d3d11_allocator_set_active (alloc, FALSE);
480 gst_d3d11_buffer_pool_stop (GstBufferPool * pool)
482 GstD3D11BufferPool *self = GST_D3D11_BUFFER_POOL (pool);
483 GstD3D11BufferPoolPrivate *priv = self->priv;
486 GST_DEBUG_OBJECT (self, "Stop");
488 for (i = 0; i < G_N_ELEMENTS (priv->alloc); i++) {
489 GstD3D11Allocator *alloc = priv->alloc[i];
494 if (!gst_d3d11_allocator_set_active (alloc, FALSE)) {
495 GST_ERROR_OBJECT (self, "Failed to deactivate allocator");
500 return GST_BUFFER_POOL_CLASS (parent_class)->stop (pool);
504 * gst_d3d11_buffer_pool_new:
505 * @device: a #GstD3D11Device to use
507 * Returns: a #GstBufferPool that allocates buffers with #GstD3D11Memory
512 gst_d3d11_buffer_pool_new (GstD3D11Device * device)
514 GstD3D11BufferPool *pool;
516 g_return_val_if_fail (GST_IS_D3D11_DEVICE (device), NULL);
518 pool = (GstD3D11BufferPool *) g_object_new (GST_TYPE_D3D11_BUFFER_POOL, NULL);
519 gst_object_ref_sink (pool);
521 pool->device = (GstD3D11Device *) gst_object_ref (device);
523 return GST_BUFFER_POOL_CAST (pool);
527 * gst_buffer_pool_config_get_d3d11_allocation_params:
528 * @config: a buffer pool config
530 * Returns: (transfer full) (nullable): the currently configured
531 * #GstD3D11AllocationParams on @config or %NULL if @config doesn't contain
532 * #GstD3D11AllocationParams
536 GstD3D11AllocationParams *
537 gst_buffer_pool_config_get_d3d11_allocation_params (GstStructure * config)
539 GstD3D11AllocationParams *ret;
541 if (!gst_structure_get (config, "d3d11-allocation-params",
542 GST_TYPE_D3D11_ALLOCATION_PARAMS, &ret, NULL))
549 * gst_buffer_pool_config_set_d3d11_allocation_params:
550 * @config: a buffer pool config
551 * @params: (transfer none): a #GstD3D11AllocationParams
553 * Sets @params on @config
558 gst_buffer_pool_config_set_d3d11_allocation_params (GstStructure * config,
559 GstD3D11AllocationParams * params)
561 g_return_if_fail (config != NULL);
562 g_return_if_fail (params != NULL);
564 gst_structure_set (config, "d3d11-allocation-params",
565 GST_TYPE_D3D11_ALLOCATION_PARAMS, params, NULL);