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gstreamer/gst-libs/gst/gl/gstglupload.c
Gwang Yoon Hwang c83fd26c80 gl: implement GstGLMemoryEGL 
Because current GstEGLImageMemory does not inherit GstGLMemory, GLUpload
allocates additional GLMemory and upload the decoded contents from the decoder
which uses EGLImage (e.g. gst-omx in RPi).

This work adds GstGLMemoryEGL to avoid this overhead. Decoders allocate
GstGLMemoryEGL and decode its contents to the EGLImage of GstGLMemoryEGL.  And
GLUpload uses this memory without allocation of additional textures and blit
operations.

[Matthew Waters]: gst-indent the sources and fix a critical retreiving the egl
display from the memory.

https://bugzilla.gnome.org/show_bug.cgi?id=760916
2016-05-04 12:57:27 +10:00

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/*
* GStreamer
* Copyright (C) 2012-2014 Matthew Waters <ystree00@gmail.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 <stdio.h>
#include "gl.h"
#include "gstglupload.h"
#if GST_GL_HAVE_PLATFORM_EGL
#include "egl/gsteglimagememory.h"
#include "egl/gstglmemoryegl.h"
#endif
#if GST_GL_HAVE_DMABUF
#include <gst/allocators/gstdmabuf.h>
#endif
/**
* SECTION:gstglupload
* @short_description: an object that uploads to GL textures
* @see_also: #GstGLDownload, #GstGLMemory
*
* #GstGLUpload is an object that uploads data from system memory into GL textures.
*
* A #GstGLUpload can be created with gst_gl_upload_new()
*/
#define USING_OPENGL(context) (gst_gl_context_check_gl_version (context, GST_GL_API_OPENGL, 1, 0))
#define USING_OPENGL3(context) (gst_gl_context_check_gl_version (context, GST_GL_API_OPENGL3, 3, 1))
#define USING_GLES(context) (gst_gl_context_check_gl_version (context, GST_GL_API_GLES, 1, 0))
#define USING_GLES2(context) (gst_gl_context_check_gl_version (context, GST_GL_API_GLES2, 2, 0))
#define USING_GLES3(context) (gst_gl_context_check_gl_version (context, GST_GL_API_GLES2, 3, 0))
GST_DEBUG_CATEGORY_STATIC (gst_gl_upload_debug);
#define GST_CAT_DEFAULT gst_gl_upload_debug
#define DEBUG_INIT \
GST_DEBUG_CATEGORY_INIT (gst_gl_upload_debug, "glupload", 0, "upload");
G_DEFINE_TYPE_WITH_CODE (GstGLUpload, gst_gl_upload, GST_TYPE_OBJECT,
DEBUG_INIT);
static void gst_gl_upload_finalize (GObject * object);
#define GST_GL_UPLOAD_GET_PRIVATE(obj) (G_TYPE_INSTANCE_GET_PRIVATE ((obj), \
GST_TYPE_GL_UPLOAD, GstGLUploadPrivate))
static GstGLTextureTarget
_caps_get_texture_target (GstCaps * caps, GstGLTextureTarget default_target)
{
GstGLTextureTarget ret = 0;
GstStructure *s = gst_caps_get_structure (caps, 0);
if (gst_structure_has_field_typed (s, "texture-target", G_TYPE_STRING)) {
const gchar *target_str = gst_structure_get_string (s, "texture-target");
ret = gst_gl_texture_target_from_string (target_str);
}
if (!ret)
ret = default_target;
return ret;
}
/* Define the maximum number of planes we can upload - handle 2 views per buffer */
#define GST_GL_UPLOAD_MAX_PLANES (GST_VIDEO_MAX_PLANES * 2)
typedef struct _UploadMethod UploadMethod;
struct _GstGLUploadPrivate
{
GstVideoInfo in_info;
GstVideoInfo out_info;
GstCaps *in_caps;
GstCaps *out_caps;
GstBuffer *outbuf;
/* all method impl pointers */
gpointer *upload_impl;
/* current method */
const UploadMethod *method;
gpointer method_impl;
int method_i;
};
static GstCaps *
_set_caps_features_with_passthrough (const GstCaps * caps,
const gchar * feature_name, GstCapsFeatures * passthrough)
{
guint i, j, m, n;
GstCaps *tmp;
tmp = gst_caps_new_empty ();
n = gst_caps_get_size (caps);
for (i = 0; i < n; i++) {
GstCapsFeatures *features, *orig_features;
GstStructure *s = gst_caps_get_structure (caps, i);
orig_features = gst_caps_get_features (caps, i);
features = gst_caps_features_new (feature_name, NULL);
if (gst_caps_features_is_any (orig_features)) {
/* if we have any features, we add both the features with and without @passthrough */
gst_caps_append_structure_full (tmp, gst_structure_copy (s),
gst_caps_features_copy (features));
m = gst_caps_features_get_size (passthrough);
for (j = 0; j < m; j++) {
const gchar *feature = gst_caps_features_get_nth (passthrough, j);
/* if we already have the features */
if (gst_caps_features_contains (features, feature))
continue;
gst_caps_features_add (features, feature);
}
} else {
m = gst_caps_features_get_size (orig_features);
for (j = 0; j < m; j++) {
const gchar *feature = gst_caps_features_get_nth (orig_features, j);
/* if we already have the features */
if (gst_caps_features_contains (features, feature))
continue;
if (g_strcmp0 (feature, GST_CAPS_FEATURE_MEMORY_SYSTEM_MEMORY) == 0)
continue;
if (gst_caps_features_contains (passthrough, feature)) {
gst_caps_features_add (features, feature);
}
}
}
gst_caps_append_structure_full (tmp, gst_structure_copy (s), features);
}
return tmp;
}
static GstCaps *
_caps_intersect_texture_target (GstCaps * caps, GstGLTextureTarget target_mask)
{
GValue targets = G_VALUE_INIT;
GstCaps *ret, *target;
target = gst_caps_copy (caps);
gst_gl_value_set_texture_target_from_mask (&targets, target_mask);
gst_caps_set_value (target, "texture-target", &targets);
ret = gst_caps_intersect_full (caps, target, GST_CAPS_INTERSECT_FIRST);
gst_caps_unref (target);
return ret;
}
typedef enum
{
METHOD_FLAG_CAN_SHARE_CONTEXT = 1,
} GstGLUploadMethodFlags;
struct _UploadMethod
{
const gchar *name;
GstGLUploadMethodFlags flags;
GstStaticCaps *input_template_caps;
gpointer (*new) (GstGLUpload * upload);
GstCaps *(*transform_caps) (GstGLContext * context,
GstPadDirection direction, GstCaps * caps);
gboolean (*accept) (gpointer impl, GstBuffer * buffer, GstCaps * in_caps,
GstCaps * out_caps);
void (*propose_allocation) (gpointer impl, GstQuery * decide_query,
GstQuery * query);
GstGLUploadReturn (*perform) (gpointer impl, GstBuffer * buffer,
GstBuffer ** outbuf);
void (*free) (gpointer impl);
} _UploadMethod;
struct GLMemoryUpload
{
GstGLUpload *upload;
};
static gpointer
_gl_memory_upload_new (GstGLUpload * upload)
{
struct GLMemoryUpload *mem = g_new0 (struct GLMemoryUpload, 1);
mem->upload = upload;
return mem;
}
static GstCaps *
_gl_memory_upload_transform_caps (GstGLContext * context,
GstPadDirection direction, GstCaps * caps)
{
GstCapsFeatures *passthrough =
gst_caps_features_from_string
(GST_CAPS_FEATURE_META_GST_VIDEO_OVERLAY_COMPOSITION);
GstCaps *ret;
ret =
_set_caps_features_with_passthrough (caps,
GST_CAPS_FEATURE_MEMORY_GL_MEMORY, passthrough);
gst_caps_features_free (passthrough);
if (direction == GST_PAD_SINK) {
GstGLTextureTarget target_mask = 0;
GstCaps *tmp;
target_mask |= 1 << GST_GL_TEXTURE_TARGET_2D;
target_mask |= 1 << GST_GL_TEXTURE_TARGET_RECTANGLE;
target_mask |= 1 << GST_GL_TEXTURE_TARGET_EXTERNAL_OES;
tmp = _caps_intersect_texture_target (ret, target_mask);
gst_caps_unref (ret);
ret = tmp;
} else {
gint i, n;
n = gst_caps_get_size (ret);
for (i = 0; i < n; i++) {
GstStructure *s = gst_caps_get_structure (ret, i);
gst_structure_remove_fields (s, "texture-target", NULL);
}
}
return ret;
}
static gboolean
_gl_memory_upload_accept (gpointer impl, GstBuffer * buffer, GstCaps * in_caps,
GstCaps * out_caps)
{
struct GLMemoryUpload *upload = impl;
GstCapsFeatures *features;
int i;
features = gst_caps_get_features (out_caps, 0);
if (!gst_caps_features_contains (features, GST_CAPS_FEATURE_MEMORY_GL_MEMORY))
return FALSE;
features = gst_caps_get_features (in_caps, 0);
if (!gst_caps_features_contains (features, GST_CAPS_FEATURE_MEMORY_GL_MEMORY)
&& !gst_caps_features_contains (features,
GST_CAPS_FEATURE_MEMORY_SYSTEM_MEMORY))
return FALSE;
if (buffer) {
GstVideoInfo *in_info = &upload->upload->priv->in_info;
guint expected_memories = GST_VIDEO_INFO_N_PLANES (in_info);
/* Support stereo views for separated multiview mode */
if (GST_VIDEO_INFO_MULTIVIEW_MODE (in_info) ==
GST_VIDEO_MULTIVIEW_MODE_SEPARATED)
expected_memories *= GST_VIDEO_INFO_VIEWS (in_info);
if (gst_buffer_n_memory (buffer) != expected_memories)
return FALSE;
for (i = 0; i < expected_memories; i++) {
GstMemory *mem = gst_buffer_peek_memory (buffer, i);
if (!gst_is_gl_memory (mem))
return FALSE;
}
}
return TRUE;
}
static void
_gl_memory_upload_propose_allocation (gpointer impl, GstQuery * decide_query,
GstQuery * query)
{
struct GLMemoryUpload *upload = impl;
GstBufferPool *pool = NULL;
guint n_pools, i;
GstCaps *caps;
GstCapsFeatures *features;
gst_query_parse_allocation (query, &caps, NULL);
features = gst_caps_get_features (caps, 0);
/* Only offer our custom allocator if that type of memory was negotiated. */
if (gst_caps_features_contains (features, GST_CAPS_FEATURE_MEMORY_GL_MEMORY)) {
GstAllocator *allocator;
GstAllocationParams params;
gst_allocation_params_init (&params);
allocator =
GST_ALLOCATOR (gst_gl_memory_allocator_get_default (upload->upload->
context));
gst_query_add_allocation_param (query, allocator, &params);
gst_object_unref (allocator);
#if GST_GL_HAVE_PLATFORM_EGL
if (upload->upload->context
&& gst_gl_context_get_gl_platform (upload->upload->context) ==
GST_GL_PLATFORM_EGL) {
allocator =
GST_ALLOCATOR (gst_allocator_find (GST_GL_MEMORY_EGL_ALLOCATOR_NAME));
gst_query_add_allocation_param (query, allocator, &params);
gst_object_unref (allocator);
}
#endif
}
n_pools = gst_query_get_n_allocation_pools (query);
for (i = 0; i < n_pools; i++) {
gst_query_parse_nth_allocation_pool (query, i, &pool, NULL, NULL, NULL);
if (!GST_IS_GL_BUFFER_POOL (pool)) {
gst_object_unref (pool);
pool = NULL;
}
}
if (!pool) {
GstStructure *config;
GstVideoInfo info;
gsize size;
if (!gst_video_info_from_caps (&info, caps))
goto invalid_caps;
pool = gst_gl_buffer_pool_new (upload->upload->context);
config = gst_buffer_pool_get_config (pool);
/* the normal size of a frame */
size = info.size;
gst_buffer_pool_config_set_params (config, caps, size, 0, 0);
gst_buffer_pool_config_add_option (config,
GST_BUFFER_POOL_OPTION_GL_SYNC_META);
if (upload->upload->priv->out_caps) {
GstGLTextureTarget target;
const gchar *target_pool_option_str;
target =
_caps_get_texture_target (upload->upload->priv->out_caps,
GST_GL_TEXTURE_TARGET_2D);
target_pool_option_str =
gst_gl_texture_target_to_buffer_pool_option (target);
gst_buffer_pool_config_add_option (config, target_pool_option_str);
}
if (!gst_buffer_pool_set_config (pool, config)) {
gst_object_unref (pool);
goto config_failed;
}
gst_query_add_allocation_pool (query, pool, size, 1, 0);
}
if (pool)
gst_object_unref (pool);
return;
invalid_caps:
{
GST_WARNING_OBJECT (upload->upload, "invalid caps specified");
return;
}
config_failed:
{
GST_WARNING_OBJECT (upload->upload, "failed setting config");
return;
}
}
static GstGLUploadReturn
_gl_memory_upload_perform (gpointer impl, GstBuffer * buffer,
GstBuffer ** outbuf)
{
struct GLMemoryUpload *upload = impl;
GstGLMemory *gl_mem;
int i, n;
n = gst_buffer_n_memory (buffer);
for (i = 0; i < n; i++) {
GstMemory *mem = gst_buffer_peek_memory (buffer, i);
gl_mem = (GstGLMemory *) mem;
if (!gst_gl_context_can_share (upload->upload->context,
gl_mem->mem.context))
return GST_GL_UPLOAD_UNSHARED_GL_CONTEXT;
if (gst_is_gl_memory_pbo (mem))
gst_gl_memory_pbo_upload_transfer ((GstGLMemoryPBO *) mem);
}
*outbuf = gst_buffer_ref (buffer);
return GST_GL_UPLOAD_DONE;
}
static void
_gl_memory_upload_free (gpointer impl)
{
g_free (impl);
}
static GstStaticCaps _gl_memory_upload_caps =
GST_STATIC_CAPS (GST_VIDEO_CAPS_MAKE_WITH_FEATURES
(GST_CAPS_FEATURE_MEMORY_GL_MEMORY, GST_GL_MEMORY_VIDEO_FORMATS_STR));
static const UploadMethod _gl_memory_upload = {
"GLMemory",
METHOD_FLAG_CAN_SHARE_CONTEXT,
&_gl_memory_upload_caps,
&_gl_memory_upload_new,
&_gl_memory_upload_transform_caps,
&_gl_memory_upload_accept,
&_gl_memory_upload_propose_allocation,
&_gl_memory_upload_perform,
&_gl_memory_upload_free
};
#if GST_GL_HAVE_PLATFORM_EGL
struct EGLImageUpload
{
GstGLUpload *upload;
GstBuffer *buffer;
GstBuffer **outbuf;
GstGLVideoAllocationParams *params;
};
static gpointer
_egl_image_upload_new (GstGLUpload * upload)
{
struct EGLImageUpload *image = g_new0 (struct EGLImageUpload, 1);
image->upload = upload;
return image;
}
static GstCaps *
_egl_image_upload_transform_caps (GstGLContext * context,
GstPadDirection direction, GstCaps * caps)
{
GstCapsFeatures *passthrough =
gst_caps_features_from_string
(GST_CAPS_FEATURE_META_GST_VIDEO_OVERLAY_COMPOSITION);
GstCaps *ret;
if (direction == GST_PAD_SINK) {
GstCaps *tmp;
ret =
_set_caps_features_with_passthrough (caps,
GST_CAPS_FEATURE_MEMORY_GL_MEMORY, passthrough);
tmp = _caps_intersect_texture_target (ret, 1 << GST_GL_TEXTURE_TARGET_2D);
gst_caps_unref (ret);
ret = tmp;
} else {
gint i, n;
ret =
_set_caps_features_with_passthrough (caps,
GST_CAPS_FEATURE_MEMORY_EGL_IMAGE, passthrough);
gst_caps_set_simple (ret, "format", G_TYPE_STRING, "RGBA", NULL);
n = gst_caps_get_size (ret);
for (i = 0; i < n; i++) {
GstStructure *s = gst_caps_get_structure (ret, i);
gst_structure_remove_fields (s, "texture-target", NULL);
}
}
gst_caps_features_free (passthrough);
return ret;
}
static gboolean
_egl_image_upload_accept (gpointer impl, GstBuffer * buffer, GstCaps * in_caps,
GstCaps * out_caps)
{
struct EGLImageUpload *image = impl;
GstCapsFeatures *features;
gboolean ret = TRUE;
int i;
features = gst_caps_get_features (in_caps, 0);
if (!gst_caps_features_contains (features, GST_CAPS_FEATURE_MEMORY_EGL_IMAGE))
ret = FALSE;
features = gst_caps_get_features (out_caps, 0);
if (!gst_caps_features_contains (features, GST_CAPS_FEATURE_MEMORY_GL_MEMORY))
ret = FALSE;
if (!ret)
return FALSE;
if (image->params)
gst_gl_allocation_params_free ((GstGLAllocationParams *) image->params);
if (!(image->params =
gst_gl_video_allocation_params_new (image->upload->context, NULL,
&image->upload->priv->in_info, -1, NULL,
GST_GL_TEXTURE_TARGET_2D)))
return FALSE;
if (buffer) {
GstVideoInfo *in_info = &image->upload->priv->in_info;
guint expected_memories = GST_VIDEO_INFO_N_PLANES (in_info);
/* Support stereo views for separated multiview mode */
if (GST_VIDEO_INFO_MULTIVIEW_MODE (in_info) ==
GST_VIDEO_MULTIVIEW_MODE_SEPARATED)
expected_memories *= GST_VIDEO_INFO_VIEWS (in_info);
if (gst_buffer_n_memory (buffer) != expected_memories)
return FALSE;
for (i = 0; i < expected_memories; i++) {
GstMemory *mem = gst_buffer_peek_memory (buffer, i);
if (!gst_is_egl_image_memory (mem))
return FALSE;
}
}
return TRUE;
}
static void
_egl_image_upload_propose_allocation (gpointer impl, GstQuery * decide_query,
GstQuery * query)
{
struct EGLImageUpload *image = impl;
GstCaps *caps;
GstCapsFeatures *features;
gst_query_parse_allocation (query, &caps, NULL);
features = gst_caps_get_features (caps, 0);
/* Only offer our custom allocator if that type of memory was negotiated. */
if (gst_caps_features_contains (features,
GST_CAPS_FEATURE_MEMORY_EGL_IMAGE) &&
gst_gl_context_check_feature (image->upload->context,
"EGL_KHR_image_base")) {
GstAllocationParams params;
GstAllocator *allocator;
gst_allocation_params_init (&params);
allocator = gst_allocator_find (GST_EGL_IMAGE_MEMORY_TYPE);
gst_query_add_allocation_param (query, allocator, &params);
gst_object_unref (allocator);
}
}
static void
_egl_image_upload_perform_gl_thread (GstGLContext * context,
struct EGLImageUpload *image)
{
GstGLMemoryAllocator *allocator;
guint i, n;
allocator =
GST_GL_MEMORY_ALLOCATOR (gst_allocator_find
(GST_GL_MEMORY_PBO_ALLOCATOR_NAME));
/* FIXME: buffer pool */
*image->outbuf = gst_buffer_new ();
gst_buffer_add_parent_buffer_meta (*image->outbuf, image->buffer);
gst_gl_memory_setup_buffer (allocator, *image->outbuf, image->params, NULL,
0);
gst_object_unref (allocator);
n = gst_buffer_n_memory (image->buffer);
for (i = 0; i < n; i++) {
GstMemory *mem = gst_buffer_peek_memory (image->buffer, i);
GstGLMemory *out_gl_mem =
(GstGLMemory *) gst_buffer_peek_memory (*image->outbuf, i);
const GstGLFuncs *gl = NULL;
gl = GST_GL_CONTEXT (((GstEGLImageMemory *) mem)->context)->gl_vtable;
gl->ActiveTexture (GL_TEXTURE0 + i);
gl->BindTexture (GL_TEXTURE_2D, out_gl_mem->tex_id);
gl->EGLImageTargetTexture2D (GL_TEXTURE_2D,
gst_egl_image_memory_get_image (mem));
}
}
static GstGLUploadReturn
_egl_image_upload_perform (gpointer impl, GstBuffer * buffer,
GstBuffer ** outbuf)
{
struct EGLImageUpload *image = impl;
image->buffer = buffer;
image->outbuf = outbuf;
gst_gl_context_thread_add (image->upload->context,
(GstGLContextThreadFunc) _egl_image_upload_perform_gl_thread, image);
if (!*image->outbuf)
return GST_GL_UPLOAD_ERROR;
return GST_GL_UPLOAD_DONE;
}
static void
_egl_image_upload_free (gpointer impl)
{
struct EGLImageUpload *image = impl;
if (image->params)
gst_gl_allocation_params_free ((GstGLAllocationParams *) image->params);
g_free (impl);
}
static GstStaticCaps _egl_image_upload_caps =
GST_STATIC_CAPS (GST_VIDEO_CAPS_MAKE_WITH_FEATURES
(GST_CAPS_FEATURE_MEMORY_EGL_IMAGE, "RGBA"));
static const UploadMethod _egl_image_upload = {
"EGLImage",
0,
&_egl_image_upload_caps,
&_egl_image_upload_new,
&_egl_image_upload_transform_caps,
&_egl_image_upload_accept,
&_egl_image_upload_propose_allocation,
&_egl_image_upload_perform,
&_egl_image_upload_free
};
#endif /* GST_GL_HAVE_PLATFORM_EGL */
#if GST_GL_HAVE_DMABUF
struct DmabufUpload
{
GstGLUpload *upload;
GstMemory *eglimage[GST_VIDEO_MAX_PLANES];
GstBuffer *outbuf;
GstGLVideoAllocationParams *params;
};
static GstStaticCaps _dma_buf_upload_caps =
GST_STATIC_CAPS (GST_VIDEO_CAPS_MAKE (GST_GL_MEMORY_VIDEO_FORMATS_STR));
static gpointer
_dma_buf_upload_new (GstGLUpload * upload)
{
struct DmabufUpload *dmabuf = g_new0 (struct DmabufUpload, 1);
dmabuf->upload = upload;
return dmabuf;
}
static GstCaps *
_dma_buf_upload_transform_caps (GstGLContext * context,
GstPadDirection direction, GstCaps * caps)
{
GstCapsFeatures *passthrough =
gst_caps_features_from_string
(GST_CAPS_FEATURE_META_GST_VIDEO_OVERLAY_COMPOSITION);
GstCaps *ret;
if (direction == GST_PAD_SINK) {
GstCaps *tmp;
ret =
_set_caps_features_with_passthrough (caps,
GST_CAPS_FEATURE_MEMORY_GL_MEMORY, passthrough);
tmp = _caps_intersect_texture_target (ret, 1 << GST_GL_TEXTURE_TARGET_2D);
gst_caps_unref (ret);
ret = tmp;
} else {
gint i, n;
ret =
_set_caps_features_with_passthrough (caps,
GST_CAPS_FEATURE_MEMORY_SYSTEM_MEMORY, passthrough);
n = gst_caps_get_size (ret);
for (i = 0; i < n; i++) {
GstStructure *s = gst_caps_get_structure (ret, i);
gst_structure_remove_fields (s, "texture-target", NULL);
}
}
gst_caps_features_free (passthrough);
return ret;
}
static GQuark
_eglimage_quark (gint plane)
{
static GQuark quark[4] = { 0 };
static const gchar *quark_str[] = {
"GstGLDMABufEGLImage0",
"GstGLDMABufEGLImage1",
"GstGLDMABufEGLImage2",
"GstGLDMABufEGLImage3",
};
if (!quark[plane])
quark[plane] = g_quark_from_static_string (quark_str[plane]);
return quark[plane];
}
static GstMemory *
_get_cached_eglimage (GstMemory * mem, gint plane)
{
return gst_mini_object_get_qdata (GST_MINI_OBJECT (mem),
_eglimage_quark (plane));
}
static void
_set_cached_eglimage (GstMemory * mem, GstMemory * eglimage, gint plane)
{
return gst_mini_object_set_qdata (GST_MINI_OBJECT (mem),
_eglimage_quark (plane), eglimage, (GDestroyNotify) gst_memory_unref);
}
static gboolean
_dma_buf_upload_accept (gpointer impl, GstBuffer * buffer, GstCaps * in_caps,
GstCaps * out_caps)
{
struct DmabufUpload *dmabuf = impl;
GstVideoInfo *in_info = &dmabuf->upload->priv->in_info;
guint n_planes = GST_VIDEO_INFO_N_PLANES (in_info);
GstVideoMeta *meta;
guint n_mem;
guint mems_idx[GST_VIDEO_MAX_PLANES];
gsize mems_skip[GST_VIDEO_MAX_PLANES];
GstMemory *mems[GST_VIDEO_MAX_PLANES];
guint i;
n_mem = gst_buffer_n_memory (buffer);
meta = gst_buffer_get_video_meta (buffer);
/* dmabuf upload is only supported with EGL contexts. */
if (!GST_IS_GL_CONTEXT_EGL (dmabuf->upload->context))
return FALSE;
if (!gst_gl_context_check_feature (dmabuf->upload->context,
"EGL_KHR_image_base"))
return FALSE;
/* This will eliminate most non-dmabuf out there */
if (!gst_is_dmabuf_memory (gst_buffer_peek_memory (buffer, 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) {
in_info->width = meta->width;
in_info->height = meta->height;
for (i = 0; i < meta->n_planes; i++) {
in_info->offset[i] = meta->offset[i];
in_info->stride[i] = meta->stride[i];
}
}
if (dmabuf->params)
gst_gl_allocation_params_free ((GstGLAllocationParams *) dmabuf->params);
if (!(dmabuf->params =
gst_gl_video_allocation_params_new (dmabuf->upload->context, NULL,
&dmabuf->upload->priv->in_info, -1, NULL,
GST_GL_TEXTURE_TARGET_2D)))
return FALSE;
/* Find and validate all memories */
for (i = 0; i < n_planes; i++) {
guint plane_size;
guint length;
plane_size = gst_gl_get_plane_data_size (in_info, NULL, i);
if (!gst_buffer_find_memory (buffer, in_info->offset[i], plane_size,
&mems_idx[i], &length, &mems_skip[i]))
return FALSE;
/* We can't have more then one dmabuf per plane */
if (length != 1)
return FALSE;
mems[i] = gst_buffer_peek_memory (buffer, mems_idx[i]);
/* And all memory found must be dmabuf */
if (!gst_is_dmabuf_memory (mems[i]))
return FALSE;
}
/* Now create an EGLImage for each dmabufs */
for (i = 0; i < n_planes; i++) {
/* check if one is cached */
dmabuf->eglimage[i] = _get_cached_eglimage (mems[i], i);
if (dmabuf->eglimage[i])
continue;
/* otherwise create one and cache it */
dmabuf->eglimage[i] =
gst_egl_image_memory_from_dmabuf (dmabuf->upload->context,
gst_dmabuf_memory_get_fd (mems[i]), in_info, i, mems_skip[i]);
if (!dmabuf->eglimage[i])
return FALSE;
_set_cached_eglimage (mems[i], dmabuf->eglimage[i], i);
}
return TRUE;
}
static void
_dma_buf_upload_propose_allocation (gpointer impl, GstQuery * decide_query,
GstQuery * query)
{
/* nothing to do for now. */
}
static void
_dma_buf_upload_perform_gl_thread (GstGLContext * context,
struct DmabufUpload *dmabuf)
{
GstGLMemoryAllocator *allocator;
guint i, n;
allocator =
GST_GL_MEMORY_ALLOCATOR (gst_allocator_find
(GST_GL_MEMORY_PBO_ALLOCATOR_NAME));
/* FIXME: buffer pool */
dmabuf->outbuf = gst_buffer_new ();
gst_gl_memory_setup_buffer (allocator, dmabuf->outbuf, dmabuf->params, NULL,
0);
gst_object_unref (allocator);
n = gst_buffer_n_memory (dmabuf->outbuf);
for (i = 0; i < n; i++) {
const GstGLFuncs *gl = NULL;
GstGLMemory *gl_mem =
(GstGLMemory *) gst_buffer_peek_memory (dmabuf->outbuf, i);
if (!dmabuf->eglimage[i]) {
g_clear_pointer (&dmabuf->outbuf, gst_buffer_unref);
return;
}
gl = GST_GL_CONTEXT (((GstEGLImageMemory *) gl_mem)->context)->gl_vtable;
gl->ActiveTexture (GL_TEXTURE0 + i);
gl->BindTexture (GL_TEXTURE_2D, gl_mem->tex_id);
gl->EGLImageTargetTexture2D (GL_TEXTURE_2D,
gst_egl_image_memory_get_image (dmabuf->eglimage[i]));
}
}
static GstGLUploadReturn
_dma_buf_upload_perform (gpointer impl, GstBuffer * buffer, GstBuffer ** outbuf)
{
struct DmabufUpload *dmabuf = impl;
gst_gl_context_thread_add (dmabuf->upload->context,
(GstGLContextThreadFunc) _dma_buf_upload_perform_gl_thread, dmabuf);
if (!dmabuf->outbuf)
return GST_GL_UPLOAD_ERROR;
gst_buffer_add_parent_buffer_meta (dmabuf->outbuf, buffer);
*outbuf = dmabuf->outbuf;
dmabuf->outbuf = NULL;
return GST_GL_UPLOAD_DONE;
}
static void
_dma_buf_upload_free (gpointer impl)
{
struct DmabufUpload *dmabuf = impl;
if (dmabuf->params)
gst_gl_allocation_params_free ((GstGLAllocationParams *) dmabuf->params);
g_free (impl);
}
static const UploadMethod _dma_buf_upload = {
"Dmabuf",
0,
&_dma_buf_upload_caps,
&_dma_buf_upload_new,
&_dma_buf_upload_transform_caps,
&_dma_buf_upload_accept,
&_dma_buf_upload_propose_allocation,
&_dma_buf_upload_perform,
&_dma_buf_upload_free
};
#endif /* GST_GL_HAVE_DMABUF */
struct GLUploadMeta
{
GstGLUpload *upload;
gboolean result;
GstVideoGLTextureUploadMeta *meta;
guint texture_ids[GST_GL_UPLOAD_MAX_PLANES];
GstGLVideoAllocationParams *params;
};
static gpointer
_upload_meta_upload_new (GstGLUpload * upload)
{
struct GLUploadMeta *meta = g_new0 (struct GLUploadMeta, 1);
meta->upload = upload;
return meta;
}
static GstCaps *
_upload_meta_upload_transform_caps (GstGLContext * context,
GstPadDirection direction, GstCaps * caps)
{
GstCapsFeatures *passthrough =
gst_caps_features_from_string
(GST_CAPS_FEATURE_META_GST_VIDEO_OVERLAY_COMPOSITION);
GstCaps *ret;
if (direction == GST_PAD_SINK) {
GstCaps *tmp;
ret =
_set_caps_features_with_passthrough (caps,
GST_CAPS_FEATURE_MEMORY_GL_MEMORY, passthrough);
tmp = _caps_intersect_texture_target (ret, 1 << GST_GL_TEXTURE_TARGET_2D);
gst_caps_unref (ret);
ret = tmp;
} else {
gint i, n;
ret =
_set_caps_features_with_passthrough (caps,
GST_CAPS_FEATURE_META_GST_VIDEO_GL_TEXTURE_UPLOAD_META, passthrough);
gst_caps_set_simple (ret, "format", G_TYPE_STRING, "RGBA", NULL);
n = gst_caps_get_size (ret);
for (i = 0; i < n; i++) {
GstStructure *s = gst_caps_get_structure (ret, i);
gst_structure_remove_fields (s, "texture-target", NULL);
}
}
gst_caps_features_free (passthrough);
return ret;
}
static gboolean
_upload_meta_upload_accept (gpointer impl, GstBuffer * buffer,
GstCaps * in_caps, GstCaps * out_caps)
{
struct GLUploadMeta *upload = impl;
GstCapsFeatures *features;
GstVideoGLTextureUploadMeta *meta;
gboolean ret = TRUE;
features = gst_caps_get_features (in_caps, 0);
if (!gst_caps_features_contains (features,
GST_CAPS_FEATURE_META_GST_VIDEO_GL_TEXTURE_UPLOAD_META))
ret = FALSE;
features = gst_caps_get_features (out_caps, 0);
if (!gst_caps_features_contains (features, GST_CAPS_FEATURE_MEMORY_GL_MEMORY))
ret = FALSE;
if (!ret)
return ret;
if (upload->params)
gst_gl_allocation_params_free ((GstGLAllocationParams *) upload->params);
if (!(upload->params =
gst_gl_video_allocation_params_new (upload->upload->context, NULL,
&upload->upload->priv->in_info, -1, NULL,
GST_GL_TEXTURE_TARGET_2D)))
return FALSE;
if (buffer) {
if ((meta = gst_buffer_get_video_gl_texture_upload_meta (buffer)) == NULL)
return FALSE;
if (meta->texture_type[0] != GST_VIDEO_GL_TEXTURE_TYPE_RGBA) {
GST_FIXME_OBJECT (upload, "only single rgba texture supported");
return FALSE;
}
if (meta->texture_orientation !=
GST_VIDEO_GL_TEXTURE_ORIENTATION_X_NORMAL_Y_NORMAL) {
GST_FIXME_OBJECT (upload, "only x-normal, y-normal textures supported");
return FALSE;
}
}
return TRUE;
}
static void
_upload_meta_upload_propose_allocation (gpointer impl, GstQuery * decide_query,
GstQuery * query)
{
struct GLUploadMeta *upload = impl;
GstStructure *gl_context;
gchar *platform, *gl_apis;
gpointer handle;
gl_apis =
gst_gl_api_to_string (gst_gl_context_get_gl_api (upload->
upload->context));
platform =
gst_gl_platform_to_string (gst_gl_context_get_gl_platform
(upload->upload->context));
handle = (gpointer) gst_gl_context_get_gl_context (upload->upload->context);
gl_context =
gst_structure_new ("GstVideoGLTextureUploadMeta", "gst.gl.GstGLContext",
GST_GL_TYPE_CONTEXT, upload->upload->context, "gst.gl.context.handle",
G_TYPE_POINTER, handle, "gst.gl.context.type", G_TYPE_STRING, platform,
"gst.gl.context.apis", G_TYPE_STRING, gl_apis, NULL);
gst_query_add_allocation_meta (query,
GST_VIDEO_GL_TEXTURE_UPLOAD_META_API_TYPE, gl_context);
g_free (gl_apis);
g_free (platform);
gst_structure_free (gl_context);
}
/*
* Uploads using gst_video_gl_texture_upload_meta_upload().
* i.e. consumer of GstVideoGLTextureUploadMeta
*/
static void
_do_upload_with_meta (GstGLContext * context, struct GLUploadMeta *upload)
{
if (!gst_video_gl_texture_upload_meta_upload (upload->meta,
upload->texture_ids)) {
upload->result = FALSE;
return;
}
upload->result = TRUE;
}
static GstGLUploadReturn
_upload_meta_upload_perform (gpointer impl, GstBuffer * buffer,
GstBuffer ** outbuf)
{
struct GLUploadMeta *upload = impl;
int i;
GstVideoInfo *in_info = &upload->upload->priv->in_info;
guint max_planes = GST_VIDEO_INFO_N_PLANES (in_info);
GstGLMemoryAllocator *allocator;
allocator = gst_gl_memory_allocator_get_default (upload->upload->context);
/* Support stereo views for separated multiview mode */
if (GST_VIDEO_INFO_MULTIVIEW_MODE (in_info) ==
GST_VIDEO_MULTIVIEW_MODE_SEPARATED)
max_planes *= GST_VIDEO_INFO_VIEWS (in_info);
GST_LOG_OBJECT (upload, "Attempting upload with GstVideoGLTextureUploadMeta");
upload->meta = gst_buffer_get_video_gl_texture_upload_meta (buffer);
/* FIXME: buffer pool */
*outbuf = gst_buffer_new ();
gst_gl_memory_setup_buffer (allocator, *outbuf, upload->params, NULL, 0);
gst_object_unref (allocator);
for (i = 0; i < GST_GL_UPLOAD_MAX_PLANES; i++) {
guint tex_id = 0;
if (i < max_planes) {
GstMemory *mem = gst_buffer_peek_memory (*outbuf, i);
tex_id = ((GstGLMemory *) mem)->tex_id;
}
upload->texture_ids[i] = tex_id;
}
GST_LOG ("Uploading with GLTextureUploadMeta with textures "
"%i,%i,%i,%i / %i,%i,%i,%i",
upload->texture_ids[0], upload->texture_ids[1],
upload->texture_ids[2], upload->texture_ids[3],
upload->texture_ids[4], upload->texture_ids[5],
upload->texture_ids[6], upload->texture_ids[7]);
gst_gl_context_thread_add (upload->upload->context,
(GstGLContextThreadFunc) _do_upload_with_meta, upload);
if (!upload->result)
return GST_GL_UPLOAD_ERROR;
return GST_GL_UPLOAD_DONE;
}
static void
_upload_meta_upload_free (gpointer impl)
{
struct GLUploadMeta *upload = impl;
gint i;
g_return_if_fail (impl != NULL);
for (i = 0; i < GST_GL_UPLOAD_MAX_PLANES; i++) {
if (upload->texture_ids[i])
gst_gl_context_del_texture (upload->upload->context,
&upload->texture_ids[i]);
}
if (upload->params)
gst_gl_allocation_params_free ((GstGLAllocationParams *) upload->params);
g_free (upload);
}
static GstStaticCaps _upload_meta_upload_caps =
GST_STATIC_CAPS (GST_VIDEO_CAPS_MAKE_WITH_FEATURES
(GST_CAPS_FEATURE_META_GST_VIDEO_GL_TEXTURE_UPLOAD_META, "RGBA"));
static const UploadMethod _upload_meta_upload = {
"UploadMeta",
METHOD_FLAG_CAN_SHARE_CONTEXT,
&_upload_meta_upload_caps,
&_upload_meta_upload_new,
&_upload_meta_upload_transform_caps,
&_upload_meta_upload_accept,
&_upload_meta_upload_propose_allocation,
&_upload_meta_upload_perform,
&_upload_meta_upload_free
};
struct RawUploadFrame
{
gint ref_count;
GstVideoFrame frame;
};
struct RawUpload
{
GstGLUpload *upload;
struct RawUploadFrame *in_frame;
GstGLVideoAllocationParams *params;
};
static struct RawUploadFrame *
_raw_upload_frame_new (struct RawUpload *raw, GstBuffer * buffer)
{
struct RawUploadFrame *frame;
GstVideoInfo *info;
gint i;
if (!buffer)
return NULL;
frame = g_slice_new (struct RawUploadFrame);
frame->ref_count = 1;
if (!gst_video_frame_map (&frame->frame, &raw->upload->priv->in_info,
buffer, GST_MAP_READ)) {
g_slice_free (struct RawUploadFrame, frame);
return NULL;
}
raw->upload->priv->in_info = frame->frame.info;
info = &raw->upload->priv->in_info;
/* Recalculate the offsets (and size) */
info->size = 0;
for (i = 0; i < GST_VIDEO_INFO_N_PLANES (info); i++) {
info->offset[i] = info->size;
info->size += gst_gl_get_plane_data_size (info, NULL, i);
}
return frame;
}
static void
_raw_upload_frame_ref (struct RawUploadFrame *frame)
{
g_atomic_int_inc (&frame->ref_count);
}
static void
_raw_upload_frame_unref (struct RawUploadFrame *frame)
{
if (g_atomic_int_dec_and_test (&frame->ref_count)) {
gst_video_frame_unmap (&frame->frame);
g_slice_free (struct RawUploadFrame, frame);
}
}
static gpointer
_raw_data_upload_new (GstGLUpload * upload)
{
struct RawUpload *raw = g_new0 (struct RawUpload, 1);
raw->upload = upload;
return raw;
}
static GstCaps *
_raw_data_upload_transform_caps (GstGLContext * context,
GstPadDirection direction, GstCaps * caps)
{
GstCapsFeatures *passthrough =
gst_caps_features_from_string
(GST_CAPS_FEATURE_META_GST_VIDEO_OVERLAY_COMPOSITION);
GstCaps *ret;
if (direction == GST_PAD_SINK) {
GstGLTextureTarget target_mask = 0;
GstCaps *tmp;
ret =
_set_caps_features_with_passthrough (caps,
GST_CAPS_FEATURE_MEMORY_GL_MEMORY, passthrough);
target_mask |= 1 << GST_GL_TEXTURE_TARGET_2D;
target_mask |= 1 << GST_GL_TEXTURE_TARGET_RECTANGLE;
tmp = _caps_intersect_texture_target (ret, target_mask);
gst_caps_unref (ret);
ret = tmp;
} else {
gint i, n;
ret =
_set_caps_features_with_passthrough (caps,
GST_CAPS_FEATURE_MEMORY_SYSTEM_MEMORY, passthrough);
n = gst_caps_get_size (ret);
for (i = 0; i < n; i++) {
GstStructure *s = gst_caps_get_structure (ret, i);
gst_structure_remove_fields (s, "texture-target", NULL);
}
}
gst_caps_features_free (passthrough);
return ret;
}
static gboolean
_raw_data_upload_accept (gpointer impl, GstBuffer * buffer, GstCaps * in_caps,
GstCaps * out_caps)
{
struct RawUpload *raw = impl;
GstCapsFeatures *features;
features = gst_caps_get_features (out_caps, 0);
if (!gst_caps_features_contains (features, GST_CAPS_FEATURE_MEMORY_GL_MEMORY))
return FALSE;
if (raw->in_frame)
_raw_upload_frame_unref (raw->in_frame);
raw->in_frame = _raw_upload_frame_new (raw, buffer);
if (raw->params)
gst_gl_allocation_params_free ((GstGLAllocationParams *) raw->params);
if (!(raw->params =
gst_gl_video_allocation_params_new_wrapped_data (raw->upload->context,
NULL, &raw->upload->priv->in_info, -1, NULL,
GST_GL_TEXTURE_TARGET_2D, NULL, raw->in_frame,
(GDestroyNotify) _raw_upload_frame_unref)))
return FALSE;
return (raw->in_frame != NULL);
}
static void
_raw_data_upload_propose_allocation (gpointer impl, GstQuery * decide_query,
GstQuery * query)
{
gst_query_add_allocation_meta (query, GST_VIDEO_META_API_TYPE, 0);
}
static GstGLUploadReturn
_raw_data_upload_perform (gpointer impl, GstBuffer * buffer,
GstBuffer ** outbuf)
{
GstGLBaseMemoryAllocator *allocator;
struct RawUpload *raw = impl;
int i;
GstVideoInfo *in_info = &raw->upload->priv->in_info;
guint n_mem = GST_VIDEO_INFO_N_PLANES (in_info);
allocator =
GST_GL_BASE_MEMORY_ALLOCATOR (gst_gl_memory_allocator_get_default
(raw->upload->context));
/* FIXME Use a buffer pool to cache the generated textures */
/* FIXME: multiview support with separated left/right frames? */
*outbuf = gst_buffer_new ();
for (i = 0; i < n_mem; i++) {
GstGLBaseMemory *tex;
raw->params->parent.wrapped_data = raw->in_frame->frame.data[i];
raw->params->plane = i;
tex =
gst_gl_base_memory_alloc (allocator,
(GstGLAllocationParams *) raw->params);
if (!tex) {
gst_buffer_unref (*outbuf);
*outbuf = NULL;
GST_ERROR_OBJECT (raw->upload, "Failed to allocate wrapped texture");
return GST_GL_UPLOAD_ERROR;
}
_raw_upload_frame_ref (raw->in_frame);
gst_buffer_append_memory (*outbuf, (GstMemory *) tex);
}
gst_object_unref (allocator);
_raw_upload_frame_unref (raw->in_frame);
raw->in_frame = NULL;
return GST_GL_UPLOAD_DONE;
}
static void
_raw_data_upload_free (gpointer impl)
{
struct RawUpload *raw = impl;
if (raw->params)
gst_gl_allocation_params_free ((GstGLAllocationParams *) raw->params);
g_free (raw);
}
static GstStaticCaps _raw_data_upload_caps =
GST_STATIC_CAPS (GST_VIDEO_CAPS_MAKE (GST_GL_MEMORY_VIDEO_FORMATS_STR));
static const UploadMethod _raw_data_upload = {
"Raw Data",
0,
&_raw_data_upload_caps,
&_raw_data_upload_new,
&_raw_data_upload_transform_caps,
&_raw_data_upload_accept,
&_raw_data_upload_propose_allocation,
&_raw_data_upload_perform,
&_raw_data_upload_free
};
static const UploadMethod *upload_methods[] = { &_gl_memory_upload,
#if GST_GL_HAVE_PLATFORM_EGL
&_egl_image_upload,
#endif
#if GST_GL_HAVE_DMABUF
&_dma_buf_upload,
#endif
&_upload_meta_upload, &_raw_data_upload
};
static GMutex upload_global_lock;
GstCaps *
gst_gl_upload_get_input_template_caps (void)
{
GstCaps *ret = NULL;
gint i;
g_mutex_lock (&upload_global_lock);
/* FIXME: cache this and invalidate on changes to upload_methods */
for (i = 0; i < G_N_ELEMENTS (upload_methods); i++) {
GstCaps *template =
gst_static_caps_get (upload_methods[i]->input_template_caps);
ret = ret == NULL ? template : gst_caps_merge (ret, template);
}
ret = gst_caps_simplify (ret);
ret = gst_gl_overlay_compositor_add_caps (ret);
g_mutex_unlock (&upload_global_lock);
return ret;
}
static void
gst_gl_upload_class_init (GstGLUploadClass * klass)
{
g_type_class_add_private (klass, sizeof (GstGLUploadPrivate));
G_OBJECT_CLASS (klass)->finalize = gst_gl_upload_finalize;
}
static void
gst_gl_upload_init (GstGLUpload * upload)
{
upload->priv = GST_GL_UPLOAD_GET_PRIVATE (upload);
}
/**
* gst_gl_upload_new:
* @context: a #GstGLContext
*
* Returns: a new #GstGLUpload object
*/
GstGLUpload *
gst_gl_upload_new (GstGLContext * context)
{
GstGLUpload *upload = g_object_new (GST_TYPE_GL_UPLOAD, NULL);
gint i, n;
upload->context = gst_object_ref (context);
n = G_N_ELEMENTS (upload_methods);
upload->priv->upload_impl = g_malloc (sizeof (gpointer) * n);
for (i = 0; i < n; i++) {
upload->priv->upload_impl[i] = upload_methods[i]->new (upload);
}
GST_DEBUG_OBJECT (upload, "Created new GLUpload for context %" GST_PTR_FORMAT,
context);
return upload;
}
static void
gst_gl_upload_finalize (GObject * object)
{
GstGLUpload *upload;
gint i, n;
upload = GST_GL_UPLOAD (object);
if (upload->priv->method_impl)
upload->priv->method->free (upload->priv->method_impl);
upload->priv->method_i = 0;
if (upload->context) {
gst_object_unref (upload->context);
upload->context = NULL;
}
if (upload->priv->in_caps) {
gst_caps_unref (upload->priv->in_caps);
upload->priv->in_caps = NULL;
}
if (upload->priv->out_caps) {
gst_caps_unref (upload->priv->out_caps);
upload->priv->out_caps = NULL;
}
n = G_N_ELEMENTS (upload_methods);
for (i = 0; i < n; i++) {
if (upload->priv->upload_impl[i])
upload_methods[i]->free (upload->priv->upload_impl[i]);
}
g_free (upload->priv->upload_impl);
G_OBJECT_CLASS (gst_gl_upload_parent_class)->finalize (object);
}
GstCaps *
gst_gl_upload_transform_caps (GstGLContext * context, GstPadDirection direction,
GstCaps * caps, GstCaps * filter)
{
GstCaps *result, *tmp;
gint i;
tmp = gst_caps_new_empty ();
for (i = 0; i < G_N_ELEMENTS (upload_methods); i++) {
GstCaps *tmp2;
tmp2 = upload_methods[i]->transform_caps (context, direction, caps);
if (tmp2)
tmp = gst_caps_merge (tmp, tmp2);
}
if (filter) {
result = gst_caps_intersect_full (filter, tmp, GST_CAPS_INTERSECT_FIRST);
gst_caps_unref (tmp);
} else {
result = tmp;
}
return result;
}
/**
* gst_gl_upload_propose_allocation:
* @upload: a #GstGLUpload
* @decide_query: (allow-none): a #GstQuery from a decide allocation
* @query: the proposed allocation query
*
* Adds the required allocation parameters to support uploading.
*/
void
gst_gl_upload_propose_allocation (GstGLUpload * upload, GstQuery * decide_query,
GstQuery * query)
{
gint i;
for (i = 0; i < G_N_ELEMENTS (upload_methods); i++)
upload_methods[i]->propose_allocation (upload->priv->upload_impl[i],
decide_query, query);
}
static gboolean
_gst_gl_upload_set_caps_unlocked (GstGLUpload * upload, GstCaps * in_caps,
GstCaps * out_caps)
{
g_return_val_if_fail (upload != NULL, FALSE);
g_return_val_if_fail (gst_caps_is_fixed (in_caps), FALSE);
if (upload->priv->in_caps && upload->priv->out_caps
&& gst_caps_is_equal (upload->priv->in_caps, in_caps)
&& gst_caps_is_equal (upload->priv->out_caps, out_caps))
return TRUE;
gst_caps_replace (&upload->priv->in_caps, in_caps);
gst_caps_replace (&upload->priv->out_caps, out_caps);
gst_video_info_from_caps (&upload->priv->in_info, in_caps);
gst_video_info_from_caps (&upload->priv->out_info, out_caps);
if (upload->priv->method_impl)
upload->priv->method->free (upload->priv->method_impl);
upload->priv->method_impl = NULL;
upload->priv->method_i = 0;
return TRUE;
}
/**
* gst_gl_upload_set_caps:
* @upload: a #GstGLUpload
* @in_caps: input #GstCaps
* @out_caps: output #GstCaps
*
* Initializes @upload with the information required for upload.
*
* Returns: whether @in_caps and @out_caps could be set on @upload
*/
gboolean
gst_gl_upload_set_caps (GstGLUpload * upload, GstCaps * in_caps,
GstCaps * out_caps)
{
gboolean ret;
GST_OBJECT_LOCK (upload);
ret = _gst_gl_upload_set_caps_unlocked (upload, in_caps, out_caps);
GST_OBJECT_UNLOCK (upload);
return ret;
}
/**
* gst_gl_upload_get_caps:
* @upload: a #GstGLUpload
* @in_caps: (transfer full) (allow-none) (out): the input #GstCaps
* @out_caps: (transfer full) (allow-none) (out): the output #GstCaps
*
* Returns: (transfer none): The #GstCaps set by gst_gl_upload_set_caps()
*/
void
gst_gl_upload_get_caps (GstGLUpload * upload, GstCaps ** in_caps,
GstCaps ** out_caps)
{
GST_OBJECT_LOCK (upload);
if (in_caps)
*in_caps =
upload->priv->in_caps ? gst_caps_ref (upload->priv->in_caps) : NULL;
if (out_caps)
*out_caps =
upload->priv->out_caps ? gst_caps_ref (upload->priv->out_caps) : NULL;
GST_OBJECT_UNLOCK (upload);
}
static gboolean
_upload_find_method (GstGLUpload * upload)
{
if (upload->priv->method_i >= G_N_ELEMENTS (upload_methods))
return FALSE;
if (upload->priv->method_impl) {
upload->priv->method->free (upload->priv->method_impl);
upload->priv->method_impl = NULL;
}
upload->priv->method = upload_methods[upload->priv->method_i];
upload->priv->method_impl = upload->priv->method->new (upload);
GST_DEBUG_OBJECT (upload, "attempting upload with uploader %s",
upload->priv->method->name);
upload->priv->method_i++;
return TRUE;
}
/**
* gst_gl_upload_perform_with_buffer:
* @upload: a #GstGLUpload
* @buffer: input #GstBuffer
* @outbuf_ptr: resulting #GstBuffer
*
* Uploads @buffer using the transformation specified by
* gst_gl_upload_set_caps() creating a new #GstBuffer in @outbuf_ptr.
*
* Returns: whether the upload was successful
*/
GstGLUploadReturn
gst_gl_upload_perform_with_buffer (GstGLUpload * upload, GstBuffer * buffer,
GstBuffer ** outbuf_ptr)
{
GstGLUploadReturn ret = GST_GL_UPLOAD_ERROR;
GstBuffer *outbuf;
g_return_val_if_fail (GST_IS_GL_UPLOAD (upload), FALSE);
g_return_val_if_fail (GST_IS_BUFFER (buffer), FALSE);
g_return_val_if_fail (outbuf_ptr != NULL, FALSE);
GST_OBJECT_LOCK (upload);
#define NEXT_METHOD \
do { \
if (!_upload_find_method (upload)) { \
GST_OBJECT_UNLOCK (upload); \
return FALSE; \
} \
goto restart; \
} while (0)
if (!upload->priv->method_impl)
_upload_find_method (upload);
restart:
if (!upload->priv->method->accept (upload->priv->method_impl, buffer,
upload->priv->in_caps, upload->priv->out_caps))
NEXT_METHOD;
ret =
upload->priv->method->perform (upload->priv->method_impl, buffer,
&outbuf);
if (ret == GST_GL_UPLOAD_UNSHARED_GL_CONTEXT) {
upload->priv->method->free (upload->priv->method_impl);
upload->priv->method = &_raw_data_upload;
upload->priv->method_impl = upload->priv->method->new (upload);
goto restart;
} else if (ret == GST_GL_UPLOAD_DONE) {
/* we are done */
} else {
upload->priv->method->free (upload->priv->method_impl);
upload->priv->method_impl = NULL;
NEXT_METHOD;
}
if (buffer != outbuf)
gst_buffer_copy_into (outbuf, buffer,
GST_BUFFER_COPY_FLAGS | GST_BUFFER_COPY_TIMESTAMPS, 0, -1);
*outbuf_ptr = outbuf;
GST_OBJECT_UNLOCK (upload);
return ret;
#undef NEXT_METHOD
}
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