gl/download: add support for output memory:NVMM buffers

Currently RGBA-only.

Part-of: <https://gitlab.freedesktop.org/gstreamer/gst-plugins-base/-/merge_requests/1071>
This commit is contained in:
Matthew Waters 2021-03-17 13:56:16 +11:00
parent 94f0d9c69b
commit c16412dd63
4 changed files with 921 additions and 7 deletions

View file

@ -34,6 +34,742 @@
GST_DEBUG_CATEGORY_STATIC (gst_gl_download_element_debug); GST_DEBUG_CATEGORY_STATIC (gst_gl_download_element_debug);
#define GST_CAT_DEFAULT gst_gl_download_element_debug #define GST_CAT_DEFAULT gst_gl_download_element_debug
#if GST_GL_HAVE_PLATFORM_EGL && defined(HAVE_NVMM)
#include <gst/gl/egl/gstgldisplay_egl.h>
#include <gst/gl/egl/gstglmemoryegl.h>
#include "nvbuf_utils.h"
static const char *
nv_buffer_payload_type_to_string (NvBufferPayloadType ptype)
{
switch (ptype) {
case NvBufferPayload_SurfArray:
return "SurfArray";
case NvBufferPayload_MemHandle:
return "MemHandle";
default:
return "<unknown>";
}
}
static const char *
nv_buffer_pixel_format_to_string (NvBufferColorFormat fmt)
{
switch (fmt) {
case NvBufferColorFormat_YUV420:
return "YUV420";
case NvBufferColorFormat_YVU420:
return "YVU420";
case NvBufferColorFormat_YUV422:
return "YUV422";
case NvBufferColorFormat_YUV420_ER:
return "YUV420_ER";
case NvBufferColorFormat_YVU420_ER:
return "YVU420_ER";
case NvBufferColorFormat_NV12:
return "NV12";
case NvBufferColorFormat_NV12_ER:
return "NV12_ER";
case NvBufferColorFormat_NV21:
return "NV21";
case NvBufferColorFormat_NV21_ER:
return "NV21_ER";
case NvBufferColorFormat_UYVY:
return "UYVY";
case NvBufferColorFormat_UYVY_ER:
return "UYVY_ER";
case NvBufferColorFormat_VYUY:
return "VYUY";
case NvBufferColorFormat_VYUY_ER:
return "VYUY_ER";
case NvBufferColorFormat_YUYV:
return "YUYV";
case NvBufferColorFormat_YUYV_ER:
return "YUYV_ER";
case NvBufferColorFormat_YVYU:
return "YVYU";
case NvBufferColorFormat_YVYU_ER:
return "YVYU_ER";
case NvBufferColorFormat_ABGR32:
return "ABGR32";
case NvBufferColorFormat_XRGB32:
return "XRGB32";
case NvBufferColorFormat_ARGB32:
return "ARGB32";
case NvBufferColorFormat_NV12_10LE:
return "NV12_10LE";
case NvBufferColorFormat_NV12_10LE_709:
return "NV12_10LE_709";
case NvBufferColorFormat_NV12_10LE_709_ER:
return "NV12_10LE_709_ER";
case NvBufferColorFormat_NV12_10LE_2020:
return "NV12_2020";
case NvBufferColorFormat_NV21_10LE:
return "NV21_10LE";
case NvBufferColorFormat_NV12_12LE:
return "NV12_12LE";
case NvBufferColorFormat_NV12_12LE_2020:
return "NV12_12LE_2020";
case NvBufferColorFormat_NV21_12LE:
return "NV21_12LE";
case NvBufferColorFormat_YUV420_709:
return "YUV420_709";
case NvBufferColorFormat_YUV420_709_ER:
return "YUV420_709_ER";
case NvBufferColorFormat_NV12_709:
return "NV12_709";
case NvBufferColorFormat_NV12_709_ER:
return "NV12_709_ER";
case NvBufferColorFormat_YUV420_2020:
return "YUV420_2020";
case NvBufferColorFormat_NV12_2020:
return "NV12_2020";
case NvBufferColorFormat_SignedR16G16:
return "SignedR16G16";
case NvBufferColorFormat_A32:
return "A32";
case NvBufferColorFormat_YUV444:
return "YUV444";
case NvBufferColorFormat_GRAY8:
return "GRAY8";
case NvBufferColorFormat_NV16:
return "NV16";
case NvBufferColorFormat_NV16_10LE:
return "NV16_10LE";
case NvBufferColorFormat_NV24:
return "NV24";
case NvBufferColorFormat_NV16_ER:
return "NV16_ER";
case NvBufferColorFormat_NV24_ER:
return "NV24_ER";
case NvBufferColorFormat_NV16_709:
return "NV16_709";
case NvBufferColorFormat_NV24_709:
return "NV24_709";
case NvBufferColorFormat_NV16_709_ER:
return "NV16_709_ER";
case NvBufferColorFormat_NV24_709_ER:
return "NV24_709_ER";
case NvBufferColorFormat_NV24_10LE_709:
return "NV24_10LE_709";
case NvBufferColorFormat_NV24_10LE_709_ER:
return "NV24_10LE_709_ER";
case NvBufferColorFormat_NV24_10LE_2020:
return "NV24_10LE_2020";
case NvBufferColorFormat_NV24_12LE_2020:
return "NV24_12LE_2020";
case NvBufferColorFormat_RGBA_10_10_10_2_709:
return "RGBA_10_10_10_2_709";
case NvBufferColorFormat_RGBA_10_10_10_2_2020:
return "RGBA_10_10_10_2_2020";
case NvBufferColorFormat_BGRA_10_10_10_2_709:
return "BGRA_10_10_10_2_709";
case NvBufferColorFormat_BGRA_10_10_10_2_2020:
return "BGRA_10_10_10_2_2020";
case NvBufferColorFormat_Invalid:
return "Invalid";
default:
return "<unknown>";
}
}
static void
nv_buffer_dump_params (GstObject * debug_object, NvBufferParamsEx * params)
{
GST_DEBUG_OBJECT (debug_object, "nvbuffer fd: %u size %i nv_buffer: %p of "
"size %u, payload: (0x%x) %s, pixel format: (0x%x) %s, n_planes: %u, "
"plane 0 { wxh: %ux%u, pitch: %u, offset: %u, psize: %u, layout: %u } "
"plane 1 { wxh: %ux%u, pitch: %u, offset: %u, psize: %u, layout: %u } "
"plane 2 { wxh: %ux%u, pitch: %u, offset: %u, psize: %u, layout: %u }",
params->params.dmabuf_fd, params->params.memsize,
params->params.nv_buffer, params->params.nv_buffer_size,
params->params.payloadType,
nv_buffer_payload_type_to_string (params->params.payloadType),
params->params.pixel_format,
nv_buffer_pixel_format_to_string (params->params.pixel_format),
params->params.num_planes, params->params.width[0],
params->params.height[0], params->params.pitch[0],
params->params.offset[0], params->params.psize[0],
params->params.offset[0], params->params.width[1],
params->params.height[1], params->params.pitch[1],
params->params.offset[1], params->params.psize[1],
params->params.offset[1], params->params.width[2],
params->params.height[2], params->params.pitch[2],
params->params.offset[2], params->params.psize[2],
params->params.offset[2]);
}
struct _GstMemoryNVMM
{
GstMemory parent;
int dmabuf_fd;
NvBufferParamsEx params;
};
typedef struct _GstMemoryNVMM GstMemoryNVMM;
struct _GstAllocatorNVMM
{
GstAllocator parent;
};
typedef struct _GstAllocatorNVMM GstAllocatorNVMM;
struct _GstAllocatorNVMMClass
{
GstAllocatorClass parent_class;
};
typedef struct _GstAllocatorNVMMClass GstAllocatorNVMMClass;
GType gst_allocator_nvmm_get_type (void);
G_DEFINE_TYPE (GstAllocatorNVMM, gst_allocator_nvmm, GST_TYPE_ALLOCATOR);
static gboolean
gst_memory_nvmm_init (GstMemoryNVMM * nvmm, GstMemoryFlags flags,
GstAllocator * allocator, GstMemory * parent, const GstVideoInfo * vinfo)
{
gsize size = NvBufferGetSize ();
NvBufferCreateParams create_params = {
.width = GST_VIDEO_INFO_WIDTH (vinfo),
.height = GST_VIDEO_INFO_HEIGHT (vinfo),
.payloadType = NvBufferPayload_SurfArray,
.memsize = GST_VIDEO_INFO_SIZE (vinfo),
.layout = NvBufferLayout_BlockLinear,
.colorFormat = NvBufferColorFormat_ABGR32,
.nvbuf_tag = NvBufferTag_NONE,
};
nvmm->dmabuf_fd = -1;
if (NvBufferCreateEx (&nvmm->dmabuf_fd, &create_params)) {
GST_WARNING_OBJECT (allocator, "Failed to create NvBuffer");
return FALSE;
}
if (NvBufferGetParamsEx (nvmm->dmabuf_fd, &nvmm->params)) {
GST_WARNING_OBJECT (allocator, "Failed to get NvBuffer params");
NvReleaseFd (nvmm->dmabuf_fd);
nvmm->dmabuf_fd = -1;
return FALSE;
}
nv_buffer_dump_params ((GstObject *) allocator, &nvmm->params);
gst_memory_init (&nvmm->parent, flags, allocator, parent, size, 0, 0, size);
return TRUE;
}
static gpointer
gst_memory_nvmm_map_full (GstMemory * mem, GstMapInfo * info, gsize size)
{
GstMemoryNVMM *nvmm = (GstMemoryNVMM *) mem;
GST_TRACE ("%p fd:%i map", mem, nvmm->dmabuf_fd);
// This is what the Nvidia elements do so...
return nvmm->params.params.nv_buffer;
}
static void
gst_memory_nvmm_unmap_full (GstMemory * mem, GstMapInfo * info)
{
GstMemoryNVMM *nvmm = (GstMemoryNVMM *) mem;
GST_TRACE ("%p fd:%i unmap", mem, nvmm->dmabuf_fd);
}
static GstMemory *
gst_memory_nvmm_copy (GstMemory * mem, gssize offset, gssize size)
{
return NULL;
}
static GstMemory *
gst_memory_nvmm_share (GstMemory * mem, gssize offset, gssize size)
{
return NULL;
}
static gboolean
gst_memory_nvmm_is_span (GstMemory * mem, GstMemory * mem2, gsize * offset)
{
return FALSE;
}
static gboolean
gst_is_memory_nvmm (GstMemory * mem)
{
return mem && mem->allocator
&& g_type_is_a (G_OBJECT_TYPE (mem->allocator),
gst_allocator_nvmm_get_type ());
}
static GstAllocator *_nvmm_allocator;
static void
init_nvmm_allocator (void)
{
static gsize _init = 0;
if (g_once_init_enter (&_init)) {
_nvmm_allocator = g_object_new (gst_allocator_nvmm_get_type (), NULL);
/* gst_allocator_register ("NvBuffer", _nvmm_allocator); */
GST_OBJECT_FLAG_SET (_nvmm_allocator, GST_OBJECT_FLAG_MAY_BE_LEAKED);
g_once_init_leave (&_init, 1);
}
}
static GstMemory *
gst_allocator_nvmm_alloc (const GstVideoInfo * info)
{
GstMemoryNVMM *nvmm = g_new0 (GstMemoryNVMM, 1);
init_nvmm_allocator ();
if (!gst_memory_nvmm_init (nvmm, 0, _nvmm_allocator, NULL, info)) {
g_free (nvmm);
return NULL;
}
return (GstMemory *) nvmm;
}
static GstMemory *
_gst_allocator_nvmm_alloc (GstAllocator * alloc, gsize size,
GstAllocationParams * params)
{
g_warning
("Can't allocate using gst_allocator_alloc(). Use gst_allocator_nvmm_alloc() instead");
return NULL;
}
static void
_gst_allocator_nvmm_free (GstAllocator * alloc, GstMemory * mem)
{
GstMemoryNVMM *nvmm = (GstMemoryNVMM *) mem;
if (nvmm->dmabuf_fd > 0)
NvReleaseFd (nvmm->dmabuf_fd);
nvmm->dmabuf_fd = -1;
g_free (nvmm);
}
static void
gst_allocator_nvmm_class_init (GstAllocatorNVMMClass * klass)
{
GstAllocatorClass *alloc_class = (GstAllocatorClass *) klass;
alloc_class->alloc = _gst_allocator_nvmm_alloc;
alloc_class->free = _gst_allocator_nvmm_free;
}
static void
gst_allocator_nvmm_init (GstAllocatorNVMM * nvmm)
{
GstAllocator *alloc = (GstAllocator *) nvmm;
alloc->mem_map_full = gst_memory_nvmm_map_full;
alloc->mem_unmap_full = gst_memory_nvmm_unmap_full;
alloc->mem_copy = gst_memory_nvmm_copy;
alloc->mem_share = gst_memory_nvmm_share;
alloc->mem_is_span = gst_memory_nvmm_is_span;
}
GType gst_nvmm_parent_meta_api_get_type (void);
#define GST_NVMM_PARENT_META_API_TYPE (gst_nvmm_parent_meta_api_get_type())
#define gst_buffer_get_nvmm_parent_meta(b) \
((GstNVMMParentMeta*)gst_buffer_get_meta((b),GST_NVMM_PARENT_META_API_TYPE))
const GstMetaInfo *gst_nvmm_parent_meta_get_info (void);
#define GST_NVMM_PARENT_META_INFO (gst_nvmm_parent_meta_get_info())
/* GstParentBufferMeta but supporting NULL and no copying to avoid accidentally
* introducing a circular reference when copying GstMeta's */
struct _GstNVMMParentMeta
{
GstMeta parent;
GstBuffer *buffer;
};
typedef struct _GstNVMMParentMeta GstNVMMParentMeta;
static GstNVMMParentMeta *
gst_buffer_add_nvmm_parent_meta (GstBuffer * buffer, GstBuffer * ref)
{
GstNVMMParentMeta *meta;
g_return_val_if_fail (GST_IS_BUFFER (ref), NULL);
meta =
(GstNVMMParentMeta *) gst_buffer_add_meta (buffer,
GST_NVMM_PARENT_META_INFO, NULL);
if (!meta)
return NULL;
if (ref)
meta->buffer = gst_buffer_ref (ref);
return meta;
}
static gboolean
_gst_nvmm_parent_meta_transform (GstBuffer * dest, GstMeta * meta,
GstBuffer * buffer, GQuark type, gpointer data)
{
return FALSE;
}
static void
_gst_nvmm_parent_meta_free (GstNVMMParentMeta * parent_meta, GstBuffer * buffer)
{
GST_DEBUG ("Dropping reference on buffer %p", parent_meta->buffer);
gst_clear_buffer (&parent_meta->buffer);
}
static gboolean
_gst_nvmm_parent_meta_init (GstNVMMParentMeta * parent_meta,
gpointer params, GstBuffer * buffer)
{
parent_meta->buffer = NULL;
return TRUE;
}
GType
gst_nvmm_parent_meta_api_get_type (void)
{
static GType type = 0;
static const gchar *tags[] = { GST_META_TAG_MEMORY_STR, NULL };
if (g_once_init_enter (&type)) {
GType _type = gst_meta_api_type_register ("GstNVMMParentMetaAPI", tags);
g_once_init_leave (&type, _type);
}
return type;
}
const GstMetaInfo *
gst_nvmm_parent_meta_get_info (void)
{
static const GstMetaInfo *meta_info = NULL;
if (g_once_init_enter ((GstMetaInfo **) & meta_info)) {
const GstMetaInfo *meta =
gst_meta_register (gst_nvmm_parent_meta_api_get_type (),
"GstNVMMParentMeta",
sizeof (GstNVMMParentMeta),
(GstMetaInitFunction) _gst_nvmm_parent_meta_init,
(GstMetaFreeFunction) _gst_nvmm_parent_meta_free,
_gst_nvmm_parent_meta_transform);
g_once_init_leave ((GstMetaInfo **) & meta_info, (GstMetaInfo *) meta);
}
return meta_info;
}
static GstMiniObjectDisposeFunction parent_gst_buffer_dispose = NULL;
static gboolean
gst_buffer_nvmm_dispose (GstMiniObject * obj)
{
GstBuffer *buf = (GstBuffer *) obj;
GstNVMMParentMeta *nv_buf_meta = gst_buffer_get_nvmm_parent_meta (buf);
GST_TRACE ("nvmm buffer dispose %p, parent_buf_meta %p", obj, nv_buf_meta);
if (nv_buf_meta && nv_buf_meta->buffer) {
GstNVMMParentMeta *gl_buf_meta;
gl_buf_meta = gst_buffer_get_nvmm_parent_meta (nv_buf_meta->buffer);
if (gl_buf_meta && !gl_buf_meta->buffer) {
// reattache the NVMM buffer to the parent buffer
GST_LOG ("readding nvmm buffer %p %i, to glmemory buffer %p %i", buf,
GST_MINI_OBJECT_REFCOUNT_VALUE (buf), nv_buf_meta->buffer,
GST_MINI_OBJECT_REFCOUNT_VALUE (nv_buf_meta->buffer));
gl_buf_meta->buffer = gst_buffer_ref (buf);
gst_clear_buffer (&nv_buf_meta->buffer);
return FALSE;
}
}
return parent_gst_buffer_dispose (obj);
}
struct _GstGLBufferPoolNVMMPrivate
{
GstGLVideoAllocationParams *gl_params;
};
typedef struct _GstGLBufferPoolNVMMPrivate GstGLBufferPoolNVMMPrivate;
struct _GstGLBufferPoolNVMM
{
GstGLBufferPool parent;
};
#define NVMM_POOL_GET_PRIV(obj) gst_gl_buffer_pool_nvmm_get_instance_private((GstGLBufferPoolNVMM *)(obj));
G_DECLARE_FINAL_TYPE (GstGLBufferPoolNVMM, gst_gl_buffer_pool_nvmm, GST,
GL_BUFFER_POOL_NVMM, GstGLBufferPool);
G_DEFINE_TYPE_WITH_CODE (GstGLBufferPoolNVMM, gst_gl_buffer_pool_nvmm,
GST_TYPE_GL_BUFFER_POOL, G_ADD_PRIVATE (GstGLBufferPoolNVMM));
static gboolean
gst_gl_buffer_pool_nvmm_set_config (GstBufferPool * pool, GstStructure * config)
{
GstGLBufferPoolNVMMPrivate *priv;
GstGLBufferPool *glpool = GST_GL_BUFFER_POOL (pool);
GstGLVideoAllocationParams *parent_gl_params;
GstCaps *caps = NULL;
GstVideoInfo vinfo;
GstAllocationParams alloc_params;
priv = NVMM_POOL_GET_PRIV (pool);
if (!gst_buffer_pool_config_get_allocator (config, NULL, &alloc_params))
goto wrong_config;
if (!gst_buffer_pool_config_get_params (config, &caps, NULL, NULL, NULL))
goto wrong_config;
if (caps == NULL)
goto no_caps;
/* now parse the caps from the config */
if (!gst_video_info_from_caps (&vinfo, caps))
goto wrong_caps;
// TODO: fallback to regular GLMemory PBO/GetTexImage downloads?
if (GST_VIDEO_INFO_FORMAT (&vinfo) != GST_VIDEO_FORMAT_RGBA)
goto wrong_vformat;
if (!GST_BUFFER_POOL_CLASS (gst_gl_buffer_pool_nvmm_parent_class)->set_config
(pool, config))
return FALSE;
parent_gl_params = (GstGLVideoAllocationParams *)
gst_gl_buffer_pool_get_gl_allocation_params (glpool);
if (priv->gl_params)
gst_gl_allocation_params_free ((GstGLAllocationParams *) priv->gl_params);
priv->gl_params =
gst_gl_video_allocation_params_new_wrapped_gl_handle
(parent_gl_params->parent.context, parent_gl_params->parent.alloc_params,
parent_gl_params->v_info, 0, parent_gl_params->valign,
parent_gl_params->target, parent_gl_params->tex_format, NULL, NULL, NULL);
gst_buffer_pool_config_set_gl_allocation_params (config,
(GstGLAllocationParams *) priv->gl_params);
gst_gl_allocation_params_free ((GstGLAllocationParams *) parent_gl_params);
if (!GST_BUFFER_POOL_CLASS (gst_gl_buffer_pool_nvmm_parent_class)->set_config
(pool, config))
return FALSE;
return TRUE;
wrong_config:
{
GST_WARNING_OBJECT (pool, "invalid config");
return FALSE;
}
no_caps:
{
GST_WARNING_OBJECT (pool, "no caps in config");
return FALSE;
}
wrong_caps:
{
GST_WARNING_OBJECT (pool,
"failed getting geometry from caps %" GST_PTR_FORMAT, caps);
return FALSE;
}
wrong_vformat:
{
GST_WARNING_OBJECT (pool, "This pool only deals with RGBA textures");
return FALSE;
}
}
static void
nv_buffer_egl_image_mem_unref (GstEGLImage * image, GstMemory * mem)
{
GstGLDisplayEGL *egl_display = NULL;
EGLDisplay display;
egl_display = gst_gl_display_egl_from_gl_display (image->context->display);
if (!egl_display) {
GST_ERROR ("Could not retrieve GstGLDisplayEGL from GstGLDisplay");
return;
}
display =
(EGLDisplay) gst_gl_display_get_handle (GST_GL_DISPLAY (egl_display));
if (NvDestroyEGLImage (display, image->image)) {
GST_ERROR ("Failed to destroy EGLImage %p from NvBuffer", image->image);
} else {
GST_DEBUG ("destroyed EGLImage %p from NvBuffer", image->image);
}
gst_memory_unref (mem);
gst_object_unref (egl_display);
}
static GstFlowReturn
gst_gl_buffer_pool_nvmm_alloc (GstBufferPool * pool, GstBuffer ** outbuf,
GstBufferPoolAcquireParams * acquire_params)
{
GstGLBufferPool *gl_pool = GST_GL_BUFFER_POOL (pool);
GstGLBufferPoolNVMMPrivate *priv;
GstFlowReturn ret = GST_FLOW_ERROR;
GstBuffer *downstream_buf = NULL;
GstMapInfo in_map_info = GST_MAP_INFO_INIT;
GstGLDisplayEGL *egl_display = NULL;
GstEGLImage *eglimage = NULL;
EGLDisplay display = EGL_NO_DISPLAY;
EGLImageKHR image = EGL_NO_IMAGE;
GstGLMemoryAllocator *allocator = NULL;
GstMemory *nvmm_mem = NULL;
int in_dmabuf_fd;
priv = NVMM_POOL_GET_PRIV (pool);
*outbuf = NULL;
downstream_buf = gst_buffer_new ();
if (!parent_gst_buffer_dispose)
parent_gst_buffer_dispose = ((GstMiniObject *) downstream_buf)->dispose;
((GstMiniObject *) downstream_buf)->dispose = gst_buffer_nvmm_dispose;
nvmm_mem = gst_allocator_nvmm_alloc (priv->gl_params->v_info);
if (!nvmm_mem) {
GST_WARNING_OBJECT (pool, "Failed to create NVMM GstMemory");
return GST_FLOW_ERROR;
}
gst_buffer_append_memory (downstream_buf, nvmm_mem);
in_dmabuf_fd = ((GstMemoryNVMM *) nvmm_mem)->dmabuf_fd;
egl_display = gst_gl_display_egl_from_gl_display (gl_pool->context->display);
if (!egl_display) {
GST_WARNING ("Failed to retrieve GstGLDisplayEGL from GstGLDisplay");
goto done;
}
display =
(EGLDisplay) gst_gl_display_get_handle (GST_GL_DISPLAY (egl_display));
image = NvEGLImageFromFd (display, in_dmabuf_fd);
if (!image) {
GST_DEBUG_OBJECT (pool, "Failed construct EGLImage "
"from NvBuffer fd %i", in_dmabuf_fd);
goto done;
}
GST_DEBUG_OBJECT (pool, "constructed EGLImage %p "
"from NvBuffer fd %i", image, in_dmabuf_fd);
eglimage = gst_egl_image_new_wrapped (gl_pool->context, image,
GST_GL_RGBA, gst_memory_ref (nvmm_mem),
(GstEGLImageDestroyNotify) nv_buffer_egl_image_mem_unref);
if (!eglimage) {
GST_WARNING_OBJECT (pool, "Failed to wrap constructed "
"EGLImage from NvBuffer");
goto done;
}
gst_buffer_unmap (downstream_buf, &in_map_info);
in_map_info = (GstMapInfo) GST_MAP_INFO_INIT;
allocator =
GST_GL_MEMORY_ALLOCATOR (gst_allocator_find
(GST_GL_MEMORY_EGL_ALLOCATOR_NAME));
/* TODO: buffer pool */
*outbuf = gst_buffer_new ();
if (!gst_gl_memory_setup_buffer (allocator, *outbuf, priv->gl_params,
NULL, (gpointer *) & eglimage, 1)) {
GST_WARNING_OBJECT (pool, "Failed to setup NVMM -> EGLImage buffer");
goto done;
}
gst_egl_image_unref (eglimage);
/* TODO: NvBuffer has some sync functions that may be more useful here */
{
GstGLSyncMeta *sync_meta;
sync_meta = gst_buffer_add_gl_sync_meta (gl_pool->context, *outbuf);
if (sync_meta) {
gst_gl_sync_meta_set_sync_point (sync_meta, gl_pool->context);
}
}
// possible circular reference here
gst_buffer_add_nvmm_parent_meta (*outbuf, downstream_buf);
gst_buffer_unref (downstream_buf);
ret = GST_FLOW_OK;
done:
if (in_map_info.memory)
gst_buffer_unmap (downstream_buf, &in_map_info);
gst_clear_object (&egl_display);
gst_clear_object (&allocator);
return ret;
}
static void
gst_gl_buffer_pool_nvmm_finalize (GObject * object)
{
GstGLBufferPoolNVMMPrivate *priv = NVMM_POOL_GET_PRIV (object);
if (priv->gl_params)
gst_gl_allocation_params_free ((GstGLAllocationParams *) priv->gl_params);
priv->gl_params = NULL;
G_OBJECT_CLASS (gst_gl_buffer_pool_nvmm_parent_class)->finalize (object);
}
static void
gst_gl_buffer_pool_nvmm_init (GstGLBufferPoolNVMM * pool)
{
}
static void
gst_gl_buffer_pool_nvmm_class_init (GstGLBufferPoolNVMMClass * klass)
{
GstBufferPoolClass *pool_class = (GstBufferPoolClass *) klass;
GObjectClass *gobject_class = (GObjectClass *) klass;
pool_class->set_config = gst_gl_buffer_pool_nvmm_set_config;
pool_class->alloc_buffer = gst_gl_buffer_pool_nvmm_alloc;
gobject_class->finalize = gst_gl_buffer_pool_nvmm_finalize;
}
static GstBufferPool *
gst_gl_buffer_pool_nvmm_new (GstGLContext * context)
{
GstGLBufferPoolNVMM *pool;
GstGLBufferPool *gl_pool;
pool = g_object_new (gst_gl_buffer_pool_nvmm_get_type (), NULL);
gst_object_ref_sink (pool);
gl_pool = GST_GL_BUFFER_POOL (pool);
gl_pool->context = gst_object_ref (context);
GST_LOG_OBJECT (pool, "new NVMM GL buffer pool for context %" GST_PTR_FORMAT,
context);
return GST_BUFFER_POOL_CAST (pool);
}
#endif /* GST_GL_HAVE_PLATFORM_EGL && defined(HAVE_NVMM) */
#define gst_gl_download_element_parent_class parent_class #define gst_gl_download_element_parent_class parent_class
G_DEFINE_TYPE_WITH_CODE (GstGLDownloadElement, gst_gl_download_element, G_DEFINE_TYPE_WITH_CODE (GstGLDownloadElement, gst_gl_download_element,
GST_TYPE_GL_BASE_FILTER, GST_TYPE_GL_BASE_FILTER,
@ -57,25 +793,37 @@ gst_gl_download_element_prepare_output_buffer (GstBaseTransform * bt,
GstBuffer * buffer, GstBuffer ** outbuf); GstBuffer * buffer, GstBuffer ** outbuf);
static GstFlowReturn gst_gl_download_element_transform (GstBaseTransform * bt, static GstFlowReturn gst_gl_download_element_transform (GstBaseTransform * bt,
GstBuffer * buffer, GstBuffer * outbuf); GstBuffer * buffer, GstBuffer * outbuf);
static gboolean gst_gl_download_element_transform_meta (GstBaseTransform * bt,
GstBuffer * outbuf, GstMeta * meta, GstBuffer * inbuf);
static gboolean gst_gl_download_element_decide_allocation (GstBaseTransform * static gboolean gst_gl_download_element_decide_allocation (GstBaseTransform *
trans, GstQuery * query); trans, GstQuery * query);
static gboolean gst_gl_download_element_sink_event (GstBaseTransform * bt, static gboolean gst_gl_download_element_sink_event (GstBaseTransform * bt,
GstEvent * event); GstEvent * event);
static gboolean gst_gl_download_element_src_event (GstBaseTransform * bt, static gboolean gst_gl_download_element_src_event (GstBaseTransform * bt,
GstEvent * event); GstEvent * event);
static gboolean gst_gl_download_element_propose_allocation (GstBaseTransform *
bt, GstQuery * decide_query, GstQuery * query);
static void gst_gl_download_element_finalize (GObject * object); static void gst_gl_download_element_finalize (GObject * object);
#if GST_GL_HAVE_PLATFORM_EGL && GST_GL_HAVE_DMABUF #define GST_CAPS_FEATURE_MEMORY_NVMM "memory:NVMM"
#define EXTRA_CAPS_TEMPLATE "video/x-raw(" GST_CAPS_FEATURE_MEMORY_DMABUF "); "
#if GST_GL_HAVE_PLATFORM_EGL && defined(HAVE_NVMM)
#define EXTRA_CAPS_TEMPLATE1 "video/x-raw(" GST_CAPS_FEATURE_MEMORY_NVMM "), format=(string)RGBA; "
#else #else
#define EXTRA_CAPS_TEMPLATE #define EXTRA_CAPS_TEMPLATE1
#endif
#if GST_GL_HAVE_PLATFORM_EGL && GST_GL_HAVE_DMABUF
#define EXTRA_CAPS_TEMPLATE2 "video/x-raw(" GST_CAPS_FEATURE_MEMORY_DMABUF "); "
#else
#define EXTRA_CAPS_TEMPLATE2
#endif #endif
static GstStaticPadTemplate gst_gl_download_element_src_pad_template = static GstStaticPadTemplate gst_gl_download_element_src_pad_template =
GST_STATIC_PAD_TEMPLATE ("src", GST_STATIC_PAD_TEMPLATE ("src",
GST_PAD_SRC, GST_PAD_SRC,
GST_PAD_ALWAYS, GST_PAD_ALWAYS,
GST_STATIC_CAPS (EXTRA_CAPS_TEMPLATE GST_STATIC_CAPS (EXTRA_CAPS_TEMPLATE1 EXTRA_CAPS_TEMPLATE2
"video/x-raw; video/x-raw(memory:GLMemory)")); "video/x-raw; video/x-raw(memory:GLMemory)"));
static GstStaticPadTemplate gst_gl_download_element_sink_pad_template = static GstStaticPadTemplate gst_gl_download_element_sink_pad_template =
@ -103,6 +851,8 @@ gst_gl_download_element_class_init (GstGLDownloadElementClass * klass)
bt_class->decide_allocation = gst_gl_download_element_decide_allocation; bt_class->decide_allocation = gst_gl_download_element_decide_allocation;
bt_class->sink_event = gst_gl_download_element_sink_event; bt_class->sink_event = gst_gl_download_element_sink_event;
bt_class->src_event = gst_gl_download_element_src_event; bt_class->src_event = gst_gl_download_element_src_event;
bt_class->propose_allocation = gst_gl_download_element_propose_allocation;
bt_class->transform_meta = gst_gl_download_element_transform_meta;
bt_class->passthrough_on_same_caps = TRUE; bt_class->passthrough_on_same_caps = TRUE;
@ -166,14 +916,23 @@ gst_gl_download_element_set_caps (GstBaseTransform * bt, GstCaps * in_caps,
if (gst_caps_features_contains (features, GST_CAPS_FEATURE_MEMORY_GL_MEMORY)) { if (gst_caps_features_contains (features, GST_CAPS_FEATURE_MEMORY_GL_MEMORY)) {
dl->mode = GST_GL_DOWNLOAD_MODE_PASSTHROUGH; dl->mode = GST_GL_DOWNLOAD_MODE_PASSTHROUGH;
GST_INFO_OBJECT (dl, "caps signal passthrough");
#if GST_GL_HAVE_PLATFORM_EGL && defined(HAVE_NVMM)
} else if (gst_caps_features_contains (features,
GST_CAPS_FEATURE_MEMORY_NVMM)) {
dl->mode = GST_GL_DOWNLOAD_MODE_NVMM;
GST_INFO_OBJECT (dl, "caps signal NVMM");
#endif
#if GST_GL_HAVE_PLATFORM_EGL && GST_GL_HAVE_DMABUF #if GST_GL_HAVE_PLATFORM_EGL && GST_GL_HAVE_DMABUF
} else if (g_atomic_int_get (&dl->try_dmabuf_exports) && } else if (g_atomic_int_get (&dl->try_dmabuf_exports) &&
gst_caps_features_contains (features, GST_CAPS_FEATURE_MEMORY_DMABUF)) { gst_caps_features_contains (features, GST_CAPS_FEATURE_MEMORY_DMABUF)) {
dl->mode = GST_GL_DOWNLOAD_MODE_DMABUF_EXPORTS; dl->mode = GST_GL_DOWNLOAD_MODE_DMABUF_EXPORTS;
GST_INFO_OBJECT (dl, "caps signal dma-buf export");
#endif #endif
} else { } else {
/* System Memory */ /* System Memory */
dl->mode = GST_GL_DOWNLOAD_MODE_PBO_TRANSFERS; dl->mode = GST_GL_DOWNLOAD_MODE_PBO_TRANSFERS;
GST_INFO_OBJECT (dl, "caps signal sysmem download");
} }
return TRUE; return TRUE;
@ -221,6 +980,13 @@ gst_gl_download_element_transform_caps (GstBaseTransform * bt,
GstCaps *newcaps; GstCaps *newcaps;
tmp = gst_caps_ref (caps); tmp = gst_caps_ref (caps);
#if GST_GL_HAVE_PLATFORM_EGL && defined(HAVE_NVMM)
newcaps = _set_caps_features (caps, GST_CAPS_FEATURE_MEMORY_NVMM);
_remove_field (newcaps, "texture-target");
// FIXME: RGBA-only?
tmp = gst_caps_merge (tmp, newcaps);
#endif
#if GST_GL_HAVE_PLATFORM_EGL && GST_GL_HAVE_DMABUF #if GST_GL_HAVE_PLATFORM_EGL && GST_GL_HAVE_DMABUF
newcaps = _set_caps_features (caps, GST_CAPS_FEATURE_MEMORY_DMABUF); newcaps = _set_caps_features (caps, GST_CAPS_FEATURE_MEMORY_DMABUF);
_remove_field (newcaps, "texture-target"); _remove_field (newcaps, "texture-target");
@ -461,10 +1227,57 @@ gst_gl_download_element_prepare_output_buffer (GstBaseTransform * bt,
GstBuffer * inbuf, GstBuffer ** outbuf) GstBuffer * inbuf, GstBuffer ** outbuf)
{ {
GstGLDownloadElement *dl = GST_GL_DOWNLOAD_ELEMENT (bt); GstGLDownloadElement *dl = GST_GL_DOWNLOAD_ELEMENT (bt);
GstBaseTransformClass *bclass = GST_BASE_TRANSFORM_GET_CLASS (bt);
gint i, n; gint i, n;
*outbuf = inbuf; *outbuf = inbuf;
(void) bclass;
#if GST_GL_HAVE_PLATFORM_EGL && defined(HAVE_NVMM)
if (dl->mode == GST_GL_DOWNLOAD_MODE_NVMM) {
GstNVMMParentMeta *buf_meta = gst_buffer_get_nvmm_parent_meta (inbuf);
GstMemory *mem;
GstMemoryNVMM *nvmm_mem;
if (!buf_meta || !buf_meta->buffer) {
// TODO: remove this restriction with an e.g. copy...
GST_ERROR_OBJECT (dl,
"Cannot push upstream created buffer when outputting NVMM");
return GST_FLOW_ERROR;
}
if (!(mem = gst_buffer_peek_memory (buf_meta->buffer, 0))) {
GST_ERROR_OBJECT (dl, "No memory in buffer?");
return GST_FLOW_ERROR;
}
if (!gst_is_memory_nvmm (mem)) {
GST_ERROR_OBJECT (dl,
"Upstream buffer does not contain an attached NVMM GstMemory");
return GST_FLOW_ERROR;
}
nvmm_mem = (GstMemoryNVMM *) mem;
/* switch up the parent buffer references so that when the NVMM buffer is
* released, the associated EGLImage/OpenGL texture is as well
*/
GST_DEBUG_OBJECT (dl, "NVMM buffer fd:%i passed through %" GST_PTR_FORMAT,
nvmm_mem->dmabuf_fd, buf_meta->buffer);
*outbuf = buf_meta->buffer;
bclass->copy_metadata (bt, inbuf, *outbuf);
buf_meta->buffer = NULL;
buf_meta = gst_buffer_get_nvmm_parent_meta (*outbuf);
if (!buf_meta) {
buf_meta = gst_buffer_add_nvmm_parent_meta (*outbuf, inbuf);
} else {
gst_clear_buffer (&buf_meta->buffer);
buf_meta->buffer = gst_buffer_ref (inbuf);
}
return GST_FLOW_OK;
}
#endif
#if GST_GL_HAVE_PLATFORM_EGL && GST_GL_HAVE_DMABUF #if GST_GL_HAVE_PLATFORM_EGL && GST_GL_HAVE_DMABUF
if (dl->mode == GST_GL_DOWNLOAD_MODE_DMABUF_EXPORTS) { if (dl->mode == GST_GL_DOWNLOAD_MODE_DMABUF_EXPORTS) {
GstBuffer *buffer = _try_export_dmabuf (dl, inbuf); GstBuffer *buffer = _try_export_dmabuf (dl, inbuf);
@ -529,6 +1342,19 @@ gst_gl_download_element_transform (GstBaseTransform * bt,
return GST_FLOW_OK; return GST_FLOW_OK;
} }
static gboolean
gst_gl_download_element_transform_meta (GstBaseTransform * bt,
GstBuffer * outbuf, GstMeta * meta, GstBuffer * inbuf)
{
if (g_type_is_a (meta->info->api, GST_GL_SYNC_META_API_TYPE)) {
GST_LOG_OBJECT (bt, "not copying GstGLSyncMeta onto output buffer");
return FALSE;
}
return GST_BASE_TRANSFORM_CLASS (parent_class)->transform_meta (bt, outbuf,
meta, inbuf);
}
static gboolean static gboolean
gst_gl_download_element_decide_allocation (GstBaseTransform * trans, gst_gl_download_element_decide_allocation (GstBaseTransform * trans,
GstQuery * query) GstQuery * query)
@ -569,6 +1395,83 @@ gst_gl_download_element_src_event (GstBaseTransform * bt, GstEvent * event)
return GST_BASE_TRANSFORM_CLASS (parent_class)->src_event (bt, event); return GST_BASE_TRANSFORM_CLASS (parent_class)->src_event (bt, event);
} }
static gboolean
gst_gl_download_element_propose_allocation (GstBaseTransform * bt,
GstQuery * decide_query, GstQuery * query)
{
GstBufferPool *pool = NULL;
GstCaps *caps;
GstGLContext *context;
GstStructure *config;
GstVideoInfo info;
gsize size;
if (!GST_BASE_TRANSFORM_CLASS (parent_class)->propose_allocation (bt,
decide_query, query))
return FALSE;
gst_query_parse_allocation (query, &caps, NULL);
if (caps == NULL)
goto invalid_caps;
context = GST_GL_BASE_FILTER (bt)->context;
if (!context) {
GST_ERROR_OBJECT (context, "got no GLContext");
return FALSE;
}
if (!gst_video_info_from_caps (&info, caps))
goto invalid_caps;
#if GST_GL_HAVE_PLATFORM_EGL && defined(HAVE_NVMM)
if (!pool && decide_query) {
GstCaps *decide_caps;
gst_query_parse_allocation (decide_query, &decide_caps, NULL);
if (decide_caps && gst_caps_get_size (decide_caps) > 0) {
GstCapsFeatures *features = gst_caps_get_features (decide_caps, 0);
if (gst_caps_features_contains (features, GST_CAPS_FEATURE_MEMORY_NVMM)) {
pool = gst_gl_buffer_pool_nvmm_new (context);
GST_INFO_OBJECT (bt, "have NVMM downstream, proposing NVMM "
"pool %" GST_PTR_FORMAT, pool);
}
}
}
#endif
if (!pool) {
pool = gst_gl_buffer_pool_new (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 (!gst_buffer_pool_set_config (pool, config)) {
gst_object_unref (pool);
goto config_failed;
}
gst_query_add_allocation_pool (query, pool, size, 1, 0);
gst_object_unref (pool);
return TRUE;
invalid_caps:
{
GST_ERROR_OBJECT (bt, "Invalid Caps specified");
return FALSE;
}
config_failed:
{
GST_ERROR_OBJECT (bt, "failed setting config");
return FALSE;
}
}
static void static void
gst_gl_download_element_finalize (GObject * object) gst_gl_download_element_finalize (GObject * object)
{ {

View file

@ -43,7 +43,8 @@ typedef enum
{ {
GST_GL_DOWNLOAD_MODE_PASSTHROUGH, GST_GL_DOWNLOAD_MODE_PASSTHROUGH,
GST_GL_DOWNLOAD_MODE_PBO_TRANSFERS, GST_GL_DOWNLOAD_MODE_PBO_TRANSFERS,
GST_GL_DOWNLOAD_MODE_DMABUF_EXPORTS GST_GL_DOWNLOAD_MODE_DMABUF_EXPORTS,
GST_GL_DOWNLOAD_MODE_NVMM,
} GstGlDownloadMode; } GstGlDownloadMode;
struct _GstGLDownloadElement struct _GstGLDownloadElement

View file

@ -133,10 +133,17 @@ if ['darwin', 'ios'].contains(host_system)
gl_objc_args += ['-fobjc-arc'] gl_objc_args += ['-fobjc-arc']
endif endif
extra_c_args = []
# gl_nvmm and nvbuf_utils_dep are set in gst-libs/gst/gl/meson.build
if gl_nvmm
extra_c_args += ['-DHAVE_NVMM']
optional_deps += [nvbuf_utils_dep]
endif
gstopengl = library('gstopengl', gstopengl = library('gstopengl',
opengl_sources, opengl_sources,
c_args : gst_plugins_base_args, c_args : gst_plugins_base_args + extra_c_args,
objc_args : gst_plugins_base_args + gl_objc_args, objc_args : gst_plugins_base_args + gl_objc_args + extra_c_args,
link_args : noseh_link_args, link_args : noseh_link_args,
include_directories : [configinc], include_directories : [configinc],
dependencies : [gstgl_dep, video_dep, dependencies : [gstgl_dep, video_dep,

View file

@ -923,6 +923,8 @@ if host_system == 'android' and need_win_android != 'no' and need_platform_egl !
endif endif
endif endif
gl_nvmm = false
nvbuf_utils_dep = unneeded_dep
if egl_dep.found() if egl_dep.found()
# XXX: provide options for this? # XXX: provide options for this?
# c_args and c_link_args can also cover this case just fine e.g.: # c_args and c_link_args can also cover this case just fine e.g.:
@ -931,6 +933,7 @@ if egl_dep.found()
nvbuf_utils_h = cc.has_header('nvbuf_utils.h') nvbuf_utils_h = cc.has_header('nvbuf_utils.h')
if nvbuf_utils_dep.found() and nvbuf_utils_h if nvbuf_utils_dep.found() and nvbuf_utils_h
gl_misc_deps += [nvbuf_utils_dep] gl_misc_deps += [nvbuf_utils_dep]
gl_nvmm = true
gl_cpp_args += ['-DHAVE_NVMM'] gl_cpp_args += ['-DHAVE_NVMM']
endif endif
endif endif