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gstreamer/sys/nvcodec/gstnvdecoder.c
Seungha Yang 791f1da7b8 nvcodec: nvsldec: Refactor graphics api resource handling 
* Move GL context object to GstNVDecoder object, and remove
  duplicated handling of each codec decoder element
* Don't create GL context too early. We can create it only if
  we need to negotiate with downstream gl element.

Part-of: <https://gitlab.freedesktop.org/gstreamer/gst-plugins-bad/-/merge_requests/2089>
2021-03-29 15:10:54 +00:00

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/* GStreamer
* Copyright (C) 2017 Ericsson AB. All rights reserved.
* Copyright (C) 2020 Seungha Yang <seungha@centricular.com>
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer
* in the documentation and/or other materials provided with the
* distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*
* 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
#ifdef HAVE_NVCODEC_GST_GL
#include <gst/gl/gl.h>
#include <gst/gl/gstglfuncs.h>
#endif
#include "gstcudamemory.h"
#include "gstnvdecoder.h"
#include "gstcudabufferpool.h"
#include <string.h>
GST_DEBUG_CATEGORY_EXTERN (gst_nv_decoder_debug);
#define GST_CAT_DEFAULT gst_nv_decoder_debug
#ifdef HAVE_NVCODEC_GST_GL
#define SUPPORTED_GL_APIS (GST_GL_API_OPENGL | GST_GL_API_OPENGL3)
#endif
typedef struct _GstNvDecoderFrameInfo
{
gboolean available;
} GstNvDecoderFrameInfo;
typedef enum
{
GST_NV_DECODER_OUTPUT_TYPE_SYSTEM = 0,
GST_NV_DECODER_OUTPUT_TYPE_GL,
GST_NV_DECODER_OUTPUT_TYPE_CUDA,
/* FIXME: add support D3D11 memory */
} GstNvDecoderOutputType;
struct _GstNvDecoder
{
GstObject parent;
GstCudaContext *context;
CUstream cuda_stream;
CUvideodecoder decoder_handle;
GstNvDecoderFrameInfo *frame_pool;
guint pool_size;
GstVideoInfo info;
GstVideoInfo coded_info;
gboolean configured;
/* For OpenGL interop. */
GstObject *gl_display;
GstObject *gl_context;
GstObject *other_gl_context;
GstNvDecoderOutputType output_type;
};
static void gst_nv_decoder_dispose (GObject * object);
static void gst_nv_decoder_reset (GstNvDecoder * self);
#define parent_class gst_nv_decoder_parent_class
G_DEFINE_TYPE (GstNvDecoder, gst_nv_decoder, GST_TYPE_OBJECT);
static void
gst_nv_decoder_class_init (GstNvDecoderClass * klass)
{
GObjectClass *gobject_class = G_OBJECT_CLASS (klass);
gobject_class->dispose = gst_nv_decoder_dispose;
}
static void
gst_nv_decoder_init (GstNvDecoder * self)
{
}
static void
gst_nv_decoder_dispose (GObject * object)
{
GstNvDecoder *self = GST_NV_DECODER (object);
gst_nv_decoder_reset (self);
if (self->context && self->cuda_stream) {
if (gst_cuda_context_push (self->context)) {
gst_cuda_result (CuStreamDestroy (self->cuda_stream));
gst_cuda_context_pop (NULL);
self->cuda_stream = NULL;
}
}
gst_clear_object (&self->context);
gst_clear_object (&self->gl_display);
gst_clear_object (&self->gl_context);
gst_clear_object (&self->other_gl_context);
G_OBJECT_CLASS (parent_class)->dispose (object);
}
static cudaVideoChromaFormat
chroma_format_from_video_format (GstVideoFormat format)
{
switch (format) {
case GST_VIDEO_FORMAT_NV12:
case GST_VIDEO_FORMAT_P010_10LE:
case GST_VIDEO_FORMAT_P010_10BE:
case GST_VIDEO_FORMAT_P016_LE:
case GST_VIDEO_FORMAT_P016_BE:
return cudaVideoChromaFormat_420;
case GST_VIDEO_FORMAT_Y444:
case GST_VIDEO_FORMAT_Y444_16LE:
case GST_VIDEO_FORMAT_Y444_16BE:
return cudaVideoChromaFormat_444;
default:
g_assert_not_reached ();
break;
}
return cudaVideoChromaFormat_420;
}
static guint
bitdepth_minus8_from_video_format (GstVideoFormat format)
{
switch (format) {
case GST_VIDEO_FORMAT_NV12:
case GST_VIDEO_FORMAT_Y444:
return 0;
case GST_VIDEO_FORMAT_P010_10LE:
case GST_VIDEO_FORMAT_P010_10BE:
return 2;
case GST_VIDEO_FORMAT_P016_LE:
case GST_VIDEO_FORMAT_P016_BE:
case GST_VIDEO_FORMAT_Y444_16LE:
case GST_VIDEO_FORMAT_Y444_16BE:
return 8;
default:
g_assert_not_reached ();
break;
}
return 0;
}
static cudaVideoSurfaceFormat
output_format_from_video_format (GstVideoFormat format)
{
switch (format) {
case GST_VIDEO_FORMAT_NV12:
return cudaVideoSurfaceFormat_NV12;
case GST_VIDEO_FORMAT_P010_10LE:
case GST_VIDEO_FORMAT_P010_10BE:
case GST_VIDEO_FORMAT_P016_LE:
case GST_VIDEO_FORMAT_P016_BE:
return cudaVideoSurfaceFormat_P016;
case GST_VIDEO_FORMAT_Y444:
return cudaVideoSurfaceFormat_YUV444;
case GST_VIDEO_FORMAT_Y444_16LE:
case GST_VIDEO_FORMAT_Y444_16BE:
return cudaVideoSurfaceFormat_YUV444_16Bit;
default:
g_assert_not_reached ();
break;
}
return cudaVideoSurfaceFormat_NV12;
}
static gboolean
gst_nv_decoder_prepare_frame_pool (GstNvDecoder * self, guint pool_size)
{
gint i;
self->frame_pool = g_new (GstNvDecoderFrameInfo, pool_size);
for (i = 0; i < pool_size; i++)
self->frame_pool[i].available = TRUE;
self->pool_size = pool_size;
return TRUE;
}
GstNvDecoder *
gst_nv_decoder_new (GstCudaContext * context)
{
GstNvDecoder *self;
g_return_val_if_fail (GST_IS_CUDA_CONTEXT (context), NULL);
self = g_object_new (GST_TYPE_NV_DECODER, NULL);
self->context = gst_object_ref (context);
gst_object_ref_sink (self);
if (gst_cuda_context_push (context)) {
CUresult cuda_ret;
cuda_ret = CuStreamCreate (&self->cuda_stream, CU_STREAM_DEFAULT);
if (!gst_cuda_result (cuda_ret)) {
GST_WARNING_OBJECT (self,
"Could not create CUDA stream, will use default stream");
self->cuda_stream = NULL;
}
gst_cuda_context_pop (NULL);
}
return self;
}
gboolean
gst_nv_decoder_is_configured (GstNvDecoder * decoder)
{
g_return_val_if_fail (GST_IS_NV_DECODER (decoder), FALSE);
return decoder->configured;
}
static void
gst_nv_decoder_reset (GstNvDecoder * self)
{
g_clear_pointer (&self->frame_pool, g_free);
if (self->decoder_handle) {
gst_cuda_context_push (self->context);
CuvidDestroyDecoder (self->decoder_handle);
gst_cuda_context_pop (NULL);
self->decoder_handle = NULL;
}
self->output_type = GST_NV_DECODER_OUTPUT_TYPE_SYSTEM;
self->configured = FALSE;
}
gboolean
gst_nv_decoder_configure (GstNvDecoder * decoder, cudaVideoCodec codec,
GstVideoInfo * info, gint coded_width, gint coded_height, guint pool_size)
{
CUVIDDECODECREATEINFO create_info = { 0, };
GstVideoFormat format;
gboolean ret;
g_return_val_if_fail (GST_IS_NV_DECODER (decoder), FALSE);
g_return_val_if_fail (codec < cudaVideoCodec_NumCodecs, FALSE);
g_return_val_if_fail (info != NULL, FALSE);
g_return_val_if_fail (coded_width >= GST_VIDEO_INFO_WIDTH (info), FALSE);
g_return_val_if_fail (coded_height >= GST_VIDEO_INFO_HEIGHT (info), FALSE);
g_return_val_if_fail (pool_size > 0, FALSE);
gst_nv_decoder_reset (decoder);
decoder->info = *info;
gst_video_info_set_format (&decoder->coded_info, GST_VIDEO_INFO_FORMAT (info),
coded_width, coded_height);
format = GST_VIDEO_INFO_FORMAT (info);
/* FIXME: check aligned resolution or actual coded resolution */
create_info.ulWidth = GST_VIDEO_INFO_WIDTH (&decoder->coded_info);
create_info.ulHeight = GST_VIDEO_INFO_HEIGHT (&decoder->coded_info);
create_info.ulNumDecodeSurfaces = pool_size;
create_info.CodecType = codec;
create_info.ChromaFormat = chroma_format_from_video_format (format);
create_info.ulCreationFlags = cudaVideoCreate_Default;
create_info.bitDepthMinus8 = bitdepth_minus8_from_video_format (format);
create_info.ulIntraDecodeOnly = 0;
create_info.display_area.left = 0;
create_info.display_area.top = 0;
create_info.display_area.right = GST_VIDEO_INFO_WIDTH (info);
create_info.display_area.bottom = GST_VIDEO_INFO_HEIGHT (info);
create_info.OutputFormat = output_format_from_video_format (format);
create_info.DeinterlaceMode = cudaVideoDeinterlaceMode_Weave;
create_info.ulTargetWidth = GST_VIDEO_INFO_WIDTH (&decoder->coded_info);
create_info.ulTargetHeight = GST_VIDEO_INFO_HEIGHT (&decoder->coded_info);
/* we always copy decoded picture to output buffer */
create_info.ulNumOutputSurfaces = 1;
create_info.target_rect.left = 0;
create_info.target_rect.top = 0;
create_info.target_rect.right = GST_VIDEO_INFO_WIDTH (&decoder->coded_info);
create_info.target_rect.bottom = GST_VIDEO_INFO_HEIGHT (&decoder->coded_info);
if (!gst_cuda_context_push (decoder->context)) {
GST_ERROR_OBJECT (decoder, "Failed to lock CUDA context");
return FALSE;
}
ret = gst_cuda_result (CuvidCreateDecoder (&decoder->decoder_handle,
&create_info));
gst_cuda_context_pop (NULL);
if (!ret) {
GST_ERROR_OBJECT (decoder, "Cannot create decoder instance");
return FALSE;
}
if (!gst_nv_decoder_prepare_frame_pool (decoder, pool_size)) {
GST_ERROR_OBJECT (decoder, "Cannot prepare internal surface buffer pool");
gst_nv_decoder_reset (decoder);
return FALSE;
}
decoder->configured = TRUE;
return TRUE;
}
GstNvDecoderFrame *
gst_nv_decoder_new_frame (GstNvDecoder * decoder)
{
GstNvDecoderFrame *frame;
gint i;
gint index_to_use = -1;
g_return_val_if_fail (GST_IS_NV_DECODER (decoder), NULL);
for (i = 0; i < decoder->pool_size; i++) {
if (decoder->frame_pool[i].available) {
decoder->frame_pool[i].available = FALSE;
index_to_use = i;
break;
}
}
if (index_to_use < 0) {
GST_ERROR_OBJECT (decoder, "No available frame");
return NULL;
}
frame = g_new0 (GstNvDecoderFrame, 1);
frame->index = index_to_use;
frame->decoder = gst_object_ref (decoder);
frame->ref_count = 1;
GST_LOG_OBJECT (decoder, "New frame %p (index %d)", frame, frame->index);
return frame;
}
/* must be called with gst_cuda_context_push */
static gboolean
gst_nv_decoder_frame_map (GstNvDecoderFrame * frame)
{
GstNvDecoder *self;
CUVIDPROCPARAMS params = { 0 };
g_return_val_if_fail (frame != NULL, FALSE);
g_return_val_if_fail (frame->index >= 0, FALSE);
g_return_val_if_fail (GST_IS_NV_DECODER (frame->decoder), FALSE);
self = frame->decoder;
/* TODO: check interlaced */
params.progressive_frame = 1;
if (frame->mapped) {
GST_WARNING_OBJECT (self, "Frame %p is mapped already", frame);
return TRUE;
}
if (!gst_cuda_result (CuvidMapVideoFrame (self->decoder_handle,
frame->index, &frame->devptr, &frame->pitch, &params))) {
GST_ERROR_OBJECT (self, "Cannot map picture");
return FALSE;
}
frame->mapped = TRUE;
return TRUE;
}
/* must be called with gst_cuda_context_push */
static void
gst_nv_decoder_frame_unmap (GstNvDecoderFrame * frame)
{
GstNvDecoder *self;
g_return_if_fail (frame != NULL);
g_return_if_fail (frame->index >= 0);
g_return_if_fail (GST_IS_NV_DECODER (frame->decoder));
self = frame->decoder;
if (!frame->mapped) {
GST_WARNING_OBJECT (self, "Frame %p is not mapped", frame);
return;
}
if (!gst_cuda_result (CuvidUnmapVideoFrame (self->decoder_handle,
frame->devptr))) {
GST_ERROR_OBJECT (self, "Cannot unmap picture");
}
frame->mapped = FALSE;
}
GstNvDecoderFrame *
gst_nv_decoder_frame_ref (GstNvDecoderFrame * frame)
{
g_assert (frame != NULL);
g_atomic_int_add (&frame->ref_count, 1);
return frame;
}
void
gst_nv_decoder_frame_unref (GstNvDecoderFrame * frame)
{
GstNvDecoder *self;
g_assert (frame != NULL);
if (g_atomic_int_dec_and_test (&frame->ref_count)) {
GST_LOG ("Free frame %p (index %d)", frame, frame->index);
if (frame->decoder) {
self = frame->decoder;
if (frame->mapped && gst_cuda_context_push (self->context)) {
gst_nv_decoder_frame_unmap (frame);
gst_cuda_context_pop (NULL);
}
if (frame->index < self->pool_size) {
self->frame_pool[frame->index].available = TRUE;
} else {
GST_WARNING_OBJECT (self,
"Frame %p has invalid index %d", frame, frame->index);
}
gst_object_unref (self);
}
g_free (frame);
}
}
gboolean
gst_nv_decoder_decode_picture (GstNvDecoder * decoder, CUVIDPICPARAMS * params)
{
GstCudaContext *ctx = decoder->context;
gboolean ret = TRUE;
GST_LOG_OBJECT (decoder, "picture index: %u", params->CurrPicIdx);
if (!gst_cuda_context_push (ctx)) {
GST_ERROR_OBJECT (decoder, "Failed to push CUDA context");
return FALSE;
}
if (!gst_cuda_result (CuvidDecodePicture (decoder->decoder_handle, params))) {
GST_ERROR_OBJECT (decoder, "Failed to decode picture");
ret = FALSE;
}
if (!gst_cuda_context_pop (NULL)) {
GST_WARNING_OBJECT (decoder, "Failed to pop CUDA context");
}
return ret;
}
#ifdef HAVE_NVCODEC_GST_GL
static gboolean
gst_nv_decoder_register_cuda_resource (GstNvDecoder * self, GstMemory * mem,
GstCudaGraphicsResource * resource)
{
GstMapInfo info;
gboolean ret = FALSE;
if (!gst_cuda_context_push (self->context)) {
GST_ERROR_OBJECT (self, "Failed to push CUDA context");
return FALSE;
}
if (gst_memory_map (mem, &info, GST_MAP_READ | GST_MAP_GL)) {
GstGLMemoryPBO *gl_mem = (GstGLMemoryPBO *) mem;
GstGLBuffer *gl_buffer = gl_mem->pbo;
GST_LOG_OBJECT (self,
"Register glbuffer %d to CUDA resource", gl_buffer->id);
/* register resource without read/write only flags, since
* downstream CUDA elements (e.g., nvenc) might want to access
* this resource later. Instead, use map flags during map/unmap */
if (gst_cuda_graphics_resource_register_gl_buffer (resource,
gl_buffer->id, CU_GRAPHICS_REGISTER_FLAGS_NONE)) {
ret = TRUE;
} else {
GST_WARNING_OBJECT (self, "Failed to register memory");
}
gst_memory_unmap (mem, &info);
} else {
GST_WARNING_OBJECT (self, "Failed to map memory");
}
if (!gst_cuda_context_pop (NULL))
GST_WARNING_OBJECT (self, "Failed to pop CUDA context");
return ret;
}
static GstCudaGraphicsResource *
gst_nv_decoder_ensure_cuda_graphics_resource (GstNvDecoder * self,
GstMemory * mem)
{
GQuark quark;
GstCudaGraphicsResource *resource;
if (!gst_is_gl_memory_pbo (mem)) {
GST_WARNING_OBJECT (self, "memory is not GL PBO memory, %s",
mem->allocator->mem_type);
return NULL;
}
quark = gst_cuda_quark_from_id (GST_CUDA_QUARK_GRAPHICS_RESOURCE);
resource = (GstCudaGraphicsResource *)
gst_mini_object_get_qdata (GST_MINI_OBJECT (mem), quark);
if (!resource) {
gboolean ret;
resource = gst_cuda_graphics_resource_new (self->context,
GST_OBJECT (GST_GL_BASE_MEMORY_CAST (mem)->context),
GST_CUDA_GRAPHICS_RESOURCE_GL_BUFFER);
ret = gst_nv_decoder_register_cuda_resource (self, mem, resource);
if (!ret) {
GST_WARNING_OBJECT (self, "Couldn't register resource");
gst_cuda_graphics_resource_free (resource);
return NULL;
}
gst_mini_object_set_qdata (GST_MINI_OBJECT (mem), quark, resource,
(GDestroyNotify) gst_cuda_graphics_resource_free);
}
return resource;
}
typedef struct
{
GstNvDecoder *self;
gboolean ret;
GstNvDecoderFrame *frame;
GstBuffer *output_buffer;
} GstNvDecoderCopyToGLData;
static void
gst_nv_decoder_copy_frame_to_gl_internal (GstGLContext * context,
GstNvDecoderCopyToGLData * data)
{
GstNvDecoder *self = data->self;
GstNvDecoderFrame *frame = data->frame;
GstCudaGraphicsResource **resources;
guint num_resources;
guint i;
CUDA_MEMCPY2D copy_params = { 0, };
GstVideoInfo *info = &self->info;
data->ret = TRUE;
num_resources = gst_buffer_n_memory (data->output_buffer);
resources = g_newa (GstCudaGraphicsResource *, num_resources);
for (i = 0; i < num_resources; i++) {
GstMemory *mem;
mem = gst_buffer_peek_memory (data->output_buffer, i);
resources[i] = gst_nv_decoder_ensure_cuda_graphics_resource (self, mem);
if (!resources[i]) {
GST_WARNING_OBJECT (self, "could not register %dth memory", i);
data->ret = FALSE;
return;
}
/* Need PBO -> texture */
GST_MINI_OBJECT_FLAG_SET (mem, GST_GL_BASE_MEMORY_TRANSFER_NEED_UPLOAD);
}
if (!gst_cuda_context_push (self->context)) {
GST_WARNING_OBJECT (self, "Failed to push CUDA context");
data->ret = FALSE;
return;
}
copy_params.srcMemoryType = CU_MEMORYTYPE_DEVICE;
copy_params.srcPitch = frame->pitch;
copy_params.dstMemoryType = CU_MEMORYTYPE_DEVICE;
for (i = 0; i < num_resources; i++) {
CUdeviceptr dst_ptr;
gsize size;
CUgraphicsResource cuda_resource =
gst_cuda_graphics_resource_map (resources[i], NULL,
CU_GRAPHICS_MAP_RESOURCE_FLAGS_WRITE_DISCARD);
if (!cuda_resource) {
GST_WARNING_OBJECT (self, "failed to map CUDA resources");
data->ret = FALSE;
goto unmap_video_frame;
}
if (!gst_cuda_result (CuGraphicsResourceGetMappedPointer (&dst_ptr, &size,
cuda_resource))) {
GST_WARNING_OBJECT (self, "failed to map CUDA resource");
data->ret = FALSE;
break;
}
copy_params.dstPitch = GST_VIDEO_INFO_PLANE_STRIDE (info, i);
copy_params.WidthInBytes = GST_VIDEO_INFO_COMP_WIDTH (info, i)
* GST_VIDEO_INFO_COMP_PSTRIDE (info, i);
copy_params.srcDevice = frame->devptr +
(i * frame->pitch * GST_VIDEO_INFO_HEIGHT (&self->coded_info));
copy_params.dstDevice = dst_ptr;
copy_params.Height = GST_VIDEO_INFO_COMP_HEIGHT (info, i);
if (!gst_cuda_result (CuMemcpy2DAsync (&copy_params, NULL))) {
GST_WARNING_OBJECT (self, "memcpy to mapped array failed");
data->ret = FALSE;
}
}
gst_cuda_result (CuStreamSynchronize (NULL));
unmap_video_frame:
for (i = 0; i < num_resources; i++) {
gst_cuda_graphics_resource_unmap (resources[i], NULL);
}
if (!gst_cuda_context_pop (NULL))
GST_WARNING_OBJECT (self, "Failed to pop CUDA context");
}
static gboolean
gst_nv_decoder_copy_frame_to_gl (GstNvDecoder * decoder,
GstGLContext * context, GstNvDecoderFrame * frame, GstBuffer * buffer)
{
GstNvDecoderCopyToGLData data;
data.self = decoder;
data.frame = frame;
data.output_buffer = buffer;
gst_gl_context_thread_add (context,
(GstGLContextThreadFunc) gst_nv_decoder_copy_frame_to_gl_internal, &data);
GST_LOG_OBJECT (decoder, "Copy frame to GL ret %d", data.ret);
return data.ret;
}
#endif
static gboolean
gst_nv_decoder_copy_frame_to_system (GstNvDecoder * decoder,
GstNvDecoderFrame * frame, GstBuffer * buffer)
{
GstVideoFrame video_frame;
CUDA_MEMCPY2D copy_params = { 0, };
gint i;
gboolean ret = FALSE;
if (!gst_video_frame_map (&video_frame, &decoder->info, buffer,
GST_MAP_WRITE)) {
GST_ERROR_OBJECT (decoder, "Couldn't map video frame");
return FALSE;
}
if (!gst_cuda_context_push (decoder->context)) {
GST_ERROR_OBJECT (decoder, "Failed to pust CUDA context");
gst_video_frame_unmap (&video_frame);
return FALSE;
}
copy_params.srcMemoryType = CU_MEMORYTYPE_DEVICE;
copy_params.srcPitch = frame->pitch;
copy_params.dstMemoryType = CU_MEMORYTYPE_HOST;
copy_params.WidthInBytes = GST_VIDEO_INFO_COMP_WIDTH (&decoder->info, 0)
* GST_VIDEO_INFO_COMP_PSTRIDE (&decoder->info, 0);
for (i = 0; i < GST_VIDEO_FRAME_N_PLANES (&video_frame); i++) {
copy_params.srcDevice = frame->devptr +
(i * frame->pitch * GST_VIDEO_INFO_HEIGHT (&decoder->coded_info));
copy_params.dstHost = GST_VIDEO_FRAME_PLANE_DATA (&video_frame, i);
copy_params.dstPitch = GST_VIDEO_FRAME_PLANE_STRIDE (&video_frame, i);
copy_params.Height = GST_VIDEO_FRAME_COMP_HEIGHT (&video_frame, i);
if (!gst_cuda_result (CuMemcpy2DAsync (&copy_params, decoder->cuda_stream))) {
GST_ERROR_OBJECT (decoder, "failed to copy %dth plane", i);
goto done;
}
}
gst_cuda_result (CuStreamSynchronize (decoder->cuda_stream));
ret = TRUE;
done:
gst_cuda_context_pop (NULL);
gst_video_frame_unmap (&video_frame);
GST_LOG_OBJECT (decoder, "Copy frame to system ret %d", ret);
return ret;
}
static gboolean
gst_nv_decoder_copy_frame_to_cuda (GstNvDecoder * decoder,
GstNvDecoderFrame * frame, GstBuffer * buffer)
{
CUDA_MEMCPY2D copy_params = { 0, };
GstMemory *mem;
GstCudaMemory *cuda_mem = NULL;
gint i;
gboolean ret = FALSE;
mem = gst_buffer_peek_memory (buffer, 0);
if (!gst_is_cuda_memory (mem)) {
GST_WARNING_OBJECT (decoder, "Not a CUDA memory");
return FALSE;
} else {
GstCudaMemory *cmem = GST_CUDA_MEMORY_CAST (mem);
if (cmem->context == decoder->context ||
gst_cuda_context_get_handle (cmem->context) ==
gst_cuda_context_get_handle (decoder->context) ||
(gst_cuda_context_can_access_peer (cmem->context, decoder->context) &&
gst_cuda_context_can_access_peer (decoder->context,
cmem->context))) {
cuda_mem = cmem;
}
}
if (!cuda_mem) {
GST_WARNING_OBJECT (decoder, "Access to CUDA memory is not allowed");
return FALSE;
}
if (!gst_cuda_context_push (decoder->context)) {
GST_ERROR_OBJECT (decoder, "Failed to pust CUDA context");
return FALSE;
}
copy_params.srcMemoryType = CU_MEMORYTYPE_DEVICE;
copy_params.srcPitch = frame->pitch;
copy_params.dstMemoryType = CU_MEMORYTYPE_DEVICE;
for (i = 0; i < GST_VIDEO_INFO_N_PLANES (&decoder->info); i++) {
copy_params.srcDevice = frame->devptr +
(i * frame->pitch * GST_VIDEO_INFO_HEIGHT (&decoder->info));
copy_params.dstDevice = cuda_mem->data + cuda_mem->offset[i];
copy_params.dstPitch = cuda_mem->stride;
copy_params.WidthInBytes = GST_VIDEO_INFO_COMP_WIDTH (&decoder->info, 0)
* GST_VIDEO_INFO_COMP_PSTRIDE (&decoder->info, 0);
copy_params.Height = GST_VIDEO_INFO_COMP_HEIGHT (&decoder->info, i);
if (!gst_cuda_result (CuMemcpy2DAsync (&copy_params, decoder->cuda_stream))) {
GST_ERROR_OBJECT (decoder, "failed to copy %dth plane", i);
goto done;
}
}
gst_cuda_result (CuStreamSynchronize (decoder->cuda_stream));
ret = TRUE;
done:
gst_cuda_context_pop (NULL);
GST_LOG_OBJECT (decoder, "Copy frame to CUDA ret %d", ret);
return ret;
}
gboolean
gst_nv_decoder_finish_frame (GstNvDecoder * decoder, GstVideoDecoder * videodec,
GstNvDecoderFrame * frame, GstBuffer ** buffer)
{
GstBuffer *outbuf = NULL;
gboolean ret = FALSE;
g_return_val_if_fail (GST_IS_NV_DECODER (decoder), GST_FLOW_ERROR);
g_return_val_if_fail (GST_IS_VIDEO_DECODER (videodec), GST_FLOW_ERROR);
g_return_val_if_fail (frame != NULL, GST_FLOW_ERROR);
g_return_val_if_fail (buffer != NULL, GST_FLOW_ERROR);
outbuf = gst_video_decoder_allocate_output_buffer (videodec);
if (!outbuf) {
GST_ERROR_OBJECT (videodec, "Couldn't allocate output buffer");
return FALSE;
}
if (!gst_cuda_context_push (decoder->context)) {
GST_ERROR_OBJECT (decoder, "Failed to push CUDA context");
goto error;
}
if (!gst_nv_decoder_frame_map (frame)) {
GST_ERROR_OBJECT (decoder, "Couldn't map frame");
gst_cuda_context_pop (NULL);
goto error;
}
gst_cuda_context_pop (NULL);
switch (decoder->output_type) {
case GST_NV_DECODER_OUTPUT_TYPE_SYSTEM:
ret = gst_nv_decoder_copy_frame_to_system (decoder, frame, outbuf);
break;
#ifdef HAVE_NVCODEC_GST_GL
case GST_NV_DECODER_OUTPUT_TYPE_GL:
g_assert (decoder->gl_context != NULL);
ret = gst_nv_decoder_copy_frame_to_gl (decoder,
GST_GL_CONTEXT (decoder->gl_context), frame, outbuf);
break;
#endif
case GST_NV_DECODER_OUTPUT_TYPE_CUDA:
ret = gst_nv_decoder_copy_frame_to_cuda (decoder, frame, outbuf);
break;
default:
g_assert_not_reached ();
goto error;
}
/* FIXME: This is the case where OpenGL context of downstream glbufferpool
* belongs to non-nvidia (or different device).
* There should be enhancement to ensure nvdec has compatible OpenGL context
*/
if (!ret && decoder->output_type == GST_NV_DECODER_OUTPUT_TYPE_GL) {
GST_WARNING_OBJECT (videodec,
"Couldn't copy frame to GL memory, fallback to system memory");
decoder->output_type = GST_NV_DECODER_OUTPUT_TYPE_SYSTEM;
ret = gst_nv_decoder_copy_frame_to_system (decoder, frame, outbuf);
}
gst_cuda_context_push (decoder->context);
gst_nv_decoder_frame_unmap (frame);
gst_cuda_context_pop (NULL);
if (!ret) {
GST_WARNING_OBJECT (videodec, "Failed to copy frame");
goto error;
}
*buffer = outbuf;
return TRUE;
error:
gst_clear_buffer (&outbuf);
return FALSE;
}
typedef enum
{
GST_NV_DECODER_FORMAT_FLAG_NONE = (1 << 0),
GST_NV_DECODER_FORMAT_FLAG_420_8BITS = (1 << 1),
GST_NV_DECODER_FORMAT_FLAG_420_10BITS = (1 << 2),
GST_NV_DECODER_FORMAT_FLAG_420_12BITS = (1 << 3),
GST_NV_DECODER_FORMAT_FLAG_444_8BITS = (1 << 4),
GST_NV_DECODER_FORMAT_FLAG_444_10BITS = (1 << 5),
GST_NV_DECODER_FORMAT_FLAG_444_12BITS = (1 << 6),
} GstNvDecoderFormatFlags;
static gboolean
gst_nv_decoder_get_supported_codec_profiles (GValue * profiles,
cudaVideoCodec codec, GstNvDecoderFormatFlags flags)
{
GValue val = G_VALUE_INIT;
gboolean ret = FALSE;
g_value_init (&val, G_TYPE_STRING);
switch (codec) {
case cudaVideoCodec_H264:
if ((flags & GST_NV_DECODER_FORMAT_FLAG_420_8BITS) ==
GST_NV_DECODER_FORMAT_FLAG_420_8BITS) {
g_value_set_static_string (&val, "constrained-baseline");
gst_value_list_append_value (profiles, &val);
g_value_set_static_string (&val, "baseline");
gst_value_list_append_value (profiles, &val);
g_value_set_static_string (&val, "main");
gst_value_list_append_value (profiles, &val);
g_value_set_static_string (&val, "high");
gst_value_list_append_value (profiles, &val);
g_value_set_static_string (&val, "constrained-high");
gst_value_list_append_value (profiles, &val);
g_value_set_static_string (&val, "progressive-high");
gst_value_list_append_value (profiles, &val);
}
/* NVDEC supports only 4:2:0 8bits h264 decoding.
* following conditions are for the future enhancement */
if ((flags & GST_NV_DECODER_FORMAT_FLAG_420_10BITS) ==
GST_NV_DECODER_FORMAT_FLAG_420_10BITS) {
g_value_set_static_string (&val, "high-10");
gst_value_list_append_value (profiles, &val);
g_value_set_static_string (&val, "progressive-high-10");
gst_value_list_append_value (profiles, &val);
}
if ((flags & GST_NV_DECODER_FORMAT_FLAG_420_12BITS) ==
GST_NV_DECODER_FORMAT_FLAG_420_12BITS ||
(flags & GST_NV_DECODER_FORMAT_FLAG_444_8BITS) ==
GST_NV_DECODER_FORMAT_FLAG_444_8BITS ||
(flags & GST_NV_DECODER_FORMAT_FLAG_444_10BITS) ==
GST_NV_DECODER_FORMAT_FLAG_444_10BITS ||
(flags & GST_NV_DECODER_FORMAT_FLAG_444_12BITS) ==
GST_NV_DECODER_FORMAT_FLAG_444_12BITS) {
g_value_set_static_string (&val, "high-4:4:4");
gst_value_list_append_value (profiles, &val);
}
ret = TRUE;
break;
case cudaVideoCodec_HEVC:
if ((flags & GST_NV_DECODER_FORMAT_FLAG_420_8BITS) ==
GST_NV_DECODER_FORMAT_FLAG_420_8BITS) {
g_value_set_static_string (&val, "main");
gst_value_list_append_value (profiles, &val);
}
if ((flags & GST_NV_DECODER_FORMAT_FLAG_420_10BITS) ==
GST_NV_DECODER_FORMAT_FLAG_420_10BITS) {
g_value_set_static_string (&val, "main-10");
gst_value_list_append_value (profiles, &val);
}
if ((flags & GST_NV_DECODER_FORMAT_FLAG_420_12BITS) ==
GST_NV_DECODER_FORMAT_FLAG_420_12BITS) {
g_value_set_static_string (&val, "main-12");
gst_value_list_append_value (profiles, &val);
}
if ((flags & GST_NV_DECODER_FORMAT_FLAG_444_8BITS) ==
GST_NV_DECODER_FORMAT_FLAG_444_8BITS) {
g_value_set_static_string (&val, "main-444");
gst_value_list_append_value (profiles, &val);
}
if ((flags & GST_NV_DECODER_FORMAT_FLAG_444_10BITS) ==
GST_NV_DECODER_FORMAT_FLAG_444_10BITS) {
g_value_set_static_string (&val, "main-444-10");
gst_value_list_append_value (profiles, &val);
}
if ((flags & GST_NV_DECODER_FORMAT_FLAG_444_12BITS) ==
GST_NV_DECODER_FORMAT_FLAG_444_12BITS) {
g_value_set_static_string (&val, "main-444-12");
gst_value_list_append_value (profiles, &val);
}
ret = TRUE;
break;
case cudaVideoCodec_VP9:
if ((flags & GST_NV_DECODER_FORMAT_FLAG_420_8BITS) ==
GST_NV_DECODER_FORMAT_FLAG_420_8BITS) {
g_value_set_static_string (&val, "0");
gst_value_list_append_value (profiles, &val);
}
if ((flags & GST_NV_DECODER_FORMAT_FLAG_420_10BITS) ==
GST_NV_DECODER_FORMAT_FLAG_420_10BITS) {
g_value_set_static_string (&val, "2");
gst_value_list_append_value (profiles, &val);
}
ret = TRUE;
break;
default:
break;
}
g_value_unset (&val);
return ret;
}
typedef struct
{
cudaVideoCodec codec;
const gchar *codec_name;
const gchar *sink_caps_string;
} GstNvdecoderCodecMap;
const GstNvdecoderCodecMap codec_map_list[] = {
{cudaVideoCodec_MPEG1, "mpegvideo",
"video/mpeg, mpegversion = (int) 1, systemstream = (boolean) false"},
{cudaVideoCodec_MPEG2, "mpeg2video",
"video/mpeg, mpegversion = (int) 2, systemstream = (boolean) false"},
{cudaVideoCodec_MPEG4, "mpeg4video",
"video/mpeg, mpegversion = (int) 4, systemstream = (boolean) false"},
#if 0
/* FIXME: need verification */
{cudaVideoCodec_VC1, "vc1"},
#endif
/* NOTE: common supported h264 profiles for all GPU architecture
* 4:2:0, baseline, main, and high profiles
*/
{cudaVideoCodec_H264, "h264",
"video/x-h264, stream-format = (string) byte-stream"
", alignment = (string) au"
", profile = (string) { constrained-baseline, baseline, main, high, constrained-high, progressive-high }"},
{cudaVideoCodec_JPEG, "jpeg", "image/jpeg"},
#if 0
/* FIXME: need verification */
{cudaVideoCodec_H264_SVC, "h264svc"},
{cudaVideoCodec_H264_MVC, "h264mvc"},
#endif
{cudaVideoCodec_HEVC, "h265",
"video/x-h265, stream-format = (string) byte-stream"
", alignment = (string) au, profile = (string) { main }"},
{cudaVideoCodec_VP8, "vp8", "video/x-vp8"},
{cudaVideoCodec_VP9, "vp9", "video/x-vp9"}
};
gboolean
gst_nv_decoder_check_device_caps (CUcontext cuda_ctx, cudaVideoCodec codec,
GstCaps ** sink_template, GstCaps ** src_template)
{
CUresult cuda_ret;
gint max_width = 0, min_width = G_MAXINT;
gint max_height = 0, min_height = G_MAXINT;
GstCaps *sink_templ = NULL;
GstCaps *src_templ = NULL;
/* FIXME: support 12bits format */
guint bitdepth_minus8[3] = { 0, 2, 4 };
GstNvDecoderFormatFlags format_flags = 0;
gint c_idx, b_idx;
guint num_support = 0;
cudaVideoChromaFormat chroma_list[] = {
#if 0
/* FIXME: support monochrome */
cudaVideoChromaFormat_Monochrome,
/* FIXME: Can our OpenGL support NV16 and its 10/12bits variant?? */
cudaVideoChromaFormat_422,
#endif
cudaVideoChromaFormat_420,
cudaVideoChromaFormat_444,
};
GValue format_list = G_VALUE_INIT;
GValue format = G_VALUE_INIT;
GValue profile_list = G_VALUE_INIT;
const GstNvdecoderCodecMap *codec_map = NULL;
guint i;
gboolean ret = FALSE;
for (i = 0; i < G_N_ELEMENTS (codec_map_list); i++) {
if (codec_map_list[i].codec == codec) {
codec_map = &codec_map_list[i];
break;
}
}
if (!codec_map) {
GST_INFO ("No codec map corresponding to codec %d", codec);
return FALSE;
}
if (!gst_cuvid_can_get_decoder_caps ()) {
GST_INFO ("Too old nvidia driver to query decoder capability");
src_templ = gst_caps_from_string (GST_VIDEO_CAPS_MAKE ("NV12"));
{
GstCaps *cuda_caps = gst_caps_copy (src_templ);
gst_caps_set_features_simple (cuda_caps,
gst_caps_features_from_string (GST_CAPS_FEATURE_MEMORY_CUDA_MEMORY));
#if HAVE_NVCODEC_GST_GL
{
GstCaps *gl_caps = gst_caps_copy (src_templ);
gst_caps_set_features_simple (gl_caps,
gst_caps_features_from_string (GST_CAPS_FEATURE_MEMORY_GL_MEMORY));
gst_caps_append (src_templ, gl_caps);
}
#endif
gst_caps_append (src_templ, cuda_caps);
}
sink_templ = gst_caps_from_string (codec_map->sink_caps_string);
*src_template = src_templ;
*sink_template = sink_templ;
return TRUE;
}
g_value_init (&format_list, GST_TYPE_LIST);
g_value_init (&format, G_TYPE_STRING);
g_value_init (&profile_list, GST_TYPE_LIST);
if (CuCtxPushCurrent (cuda_ctx) != CUDA_SUCCESS)
goto done;
for (c_idx = 0; c_idx < G_N_ELEMENTS (chroma_list); c_idx++) {
for (b_idx = 0; b_idx < G_N_ELEMENTS (bitdepth_minus8); b_idx++) {
CUVIDDECODECAPS decoder_caps = { 0, };
GstNvDecoderFormatFlags cur_flag = 0;
decoder_caps.eCodecType = codec;
decoder_caps.eChromaFormat = chroma_list[c_idx];
decoder_caps.nBitDepthMinus8 = bitdepth_minus8[b_idx];
cuda_ret = CuvidGetDecoderCaps (&decoder_caps);
if (cuda_ret != CUDA_SUCCESS) {
GST_INFO ("could not query %s decoder capability, ret %d",
codec_map->codec_name, cuda_ret);
continue;
} else if (!decoder_caps.bIsSupported) {
GST_LOG ("%s bit-depth %d with chroma format %d is not supported",
codec_map->codec_name, bitdepth_minus8[b_idx] + 8, c_idx);
continue;
}
if (min_width > decoder_caps.nMinWidth)
min_width = decoder_caps.nMinWidth;
if (min_height > decoder_caps.nMinHeight)
min_height = decoder_caps.nMinHeight;
if (max_width < decoder_caps.nMaxWidth)
max_width = decoder_caps.nMaxWidth;
if (max_height < decoder_caps.nMaxHeight)
max_height = decoder_caps.nMaxHeight;
if (chroma_list[c_idx] == cudaVideoChromaFormat_420)
cur_flag = GST_NV_DECODER_FORMAT_FLAG_420_8BITS;
else
cur_flag = GST_NV_DECODER_FORMAT_FLAG_444_8BITS;
format_flags |= (cur_flag << (bitdepth_minus8[b_idx] / 2));
GST_INFO ("%s bit-depth %d with chroma format %d [%d - %d] x [%d - %d]",
codec_map->codec_name, bitdepth_minus8[b_idx] + 8, c_idx, min_width,
max_width, min_height, max_height);
switch (chroma_list[c_idx]) {
case cudaVideoChromaFormat_420:
if (bitdepth_minus8[b_idx] == 0) {
g_value_set_string (&format, "NV12");
} else if (bitdepth_minus8[b_idx] == 2) {
#if G_BYTE_ORDER == G_LITTLE_ENDIAN
g_value_set_string (&format, "P010_10LE");
#else
g_value_set_string (&format, "P010_10BE");
#endif
} else if (bitdepth_minus8[b_idx] == 4) {
#if G_BYTE_ORDER == G_LITTLE_ENDIAN
g_value_set_string (&format, "P016_LE");
#else
g_value_set_string (&format, "P016_BE");
#endif
} else {
GST_WARNING ("unhandled bitdepth %d", bitdepth_minus8[b_idx] + 8);
break;
}
num_support++;
gst_value_list_append_value (&format_list, &format);
break;
case cudaVideoChromaFormat_444:
if (cudaVideoCodec_JPEG == codec) {
/* NVDEC jpeg decoder can decode 4:4:4 format
* but it produces 4:2:0 frame */
break;
}
if (bitdepth_minus8[b_idx] == 0) {
g_value_set_string (&format, "Y444");
} else if (bitdepth_minus8[b_idx] == 2 || bitdepth_minus8[b_idx] == 4) {
#if G_BYTE_ORDER == G_LITTLE_ENDIAN
g_value_set_string (&format, "Y444_16LE");
#else
g_value_set_string (&format, "Y444_16BE");
#endif
} else {
GST_WARNING ("unhandled bitdepth %d", bitdepth_minus8[b_idx] + 8);
break;
}
num_support++;
gst_value_list_append_value (&format_list, &format);
break;
default:
break;
}
}
}
if (num_support == 0) {
GST_INFO ("device can not support %s", codec_map->codec_name);
goto done;
}
src_templ = gst_caps_new_simple ("video/x-raw",
"width", GST_TYPE_INT_RANGE, min_width, max_width,
"height", GST_TYPE_INT_RANGE, min_height, max_height,
"framerate", GST_TYPE_FRACTION_RANGE, 0, 1, G_MAXINT, 1, NULL);
gst_caps_set_value (src_templ, "format", &format_list);
{
GstCaps *cuda_caps = gst_caps_copy (src_templ);
gst_caps_set_features_simple (cuda_caps,
gst_caps_features_from_string (GST_CAPS_FEATURE_MEMORY_CUDA_MEMORY));
/* OpenGL specific */
#if HAVE_NVCODEC_GST_GL
{
GstCaps *gl_caps = gst_caps_copy (src_templ);
gst_caps_set_features_simple (gl_caps,
gst_caps_features_from_string (GST_CAPS_FEATURE_MEMORY_GL_MEMORY));
gst_caps_append (src_templ, gl_caps);
}
#endif
gst_caps_append (src_templ, cuda_caps);
}
sink_templ = gst_caps_from_string (codec_map->sink_caps_string);
gst_caps_set_simple (sink_templ,
"width", GST_TYPE_INT_RANGE, min_width, max_width,
"height", GST_TYPE_INT_RANGE, min_height, max_height, NULL);
if (gst_nv_decoder_get_supported_codec_profiles (&profile_list, codec,
format_flags)) {
gst_caps_set_value (sink_templ, "profile", &profile_list);
}
GST_DEBUG ("sink template caps %" GST_PTR_FORMAT, sink_templ);
GST_DEBUG ("src template caps %" GST_PTR_FORMAT, src_templ);
CuCtxPopCurrent (NULL);
done:
g_value_unset (&format_list);
g_value_unset (&format);
g_value_unset (&profile_list);
if (!sink_templ || !src_templ) {
gst_clear_caps (&sink_templ);
gst_clear_caps (&src_templ);
ret = FALSE;
} else {
/* class data will be leaked if the element never gets instantiated */
GST_MINI_OBJECT_FLAG_SET (src_templ, GST_MINI_OBJECT_FLAG_MAY_BE_LEAKED);
GST_MINI_OBJECT_FLAG_SET (sink_templ, GST_MINI_OBJECT_FLAG_MAY_BE_LEAKED);
*src_template = src_templ;
*sink_template = sink_templ;
ret = TRUE;
}
return ret;
}
const gchar *
gst_cuda_video_codec_to_string (cudaVideoCodec codec)
{
gint i;
for (i = 0; i < G_N_ELEMENTS (codec_map_list); i++) {
if (codec_map_list[i].codec == codec)
return codec_map_list[i].codec_name;
}
return "unknown";
}
gboolean
gst_nv_decoder_handle_set_context (GstNvDecoder * decoder,
GstElement * videodec, GstContext * context)
{
g_return_val_if_fail (GST_IS_NV_DECODER (decoder), FALSE);
g_return_val_if_fail (GST_IS_ELEMENT (videodec), FALSE);
#ifdef HAVE_NVCODEC_GST_GL
if (gst_gl_handle_set_context (videodec, context,
(GstGLDisplay **) & decoder->gl_display,
(GstGLContext **) & decoder->other_gl_context)) {
return TRUE;
}
#endif
return FALSE;
}
gboolean
gst_nv_decoder_handle_context_query (GstNvDecoder * decoder,
GstVideoDecoder * videodec, GstQuery * query)
{
g_return_val_if_fail (GST_IS_NV_DECODER (decoder), FALSE);
g_return_val_if_fail (GST_IS_ELEMENT (videodec), FALSE);
#ifdef HAVE_NVCODEC_GST_GL
if (gst_gl_handle_context_query (GST_ELEMENT (videodec), query,
(GstGLDisplay *) decoder->gl_display,
(GstGLContext *) decoder->gl_context,
(GstGLContext *) decoder->other_gl_context)) {
if (decoder->gl_display)
gst_gl_display_filter_gl_api (GST_GL_DISPLAY (decoder->gl_display),
SUPPORTED_GL_APIS);
return TRUE;
}
#endif
return FALSE;
}
#ifdef HAVE_NVCODEC_GST_GL
static void
gst_nv_decoder_check_cuda_device_from_context (GstGLContext * context,
gboolean * ret)
{
guint device_count = 0;
CUdevice device_list[1] = { 0, };
CUresult cuda_ret;
*ret = FALSE;
cuda_ret = CuGLGetDevices (&device_count,
device_list, 1, CU_GL_DEVICE_LIST_ALL);
if (!gst_cuda_result (cuda_ret) || device_count == 0)
return;
*ret = TRUE;
return;
}
static gboolean
gst_nv_decoder_ensure_gl_context (GstNvDecoder * decoder, GstElement * videodec)
{
gboolean ret;
GstGLDisplay *display;
GstGLContext *context;
if (!gst_gl_ensure_element_data (videodec,
(GstGLDisplay **) & decoder->gl_display,
(GstGLContext **) & decoder->other_gl_context)) {
GST_DEBUG_OBJECT (videodec, "No available OpenGL display");
return FALSE;
}
display = GST_GL_DISPLAY (decoder->gl_display);
if (!gst_gl_query_local_gl_context (videodec, GST_PAD_SRC,
(GstGLContext **) & decoder->gl_context)) {
GST_INFO_OBJECT (videodec, "failed to query local OpenGL context");
gst_clear_object (&decoder->gl_context);
decoder->gl_context =
(GstObject *) gst_gl_display_get_gl_context_for_thread (display, NULL);
if (decoder->gl_context == NULL
|| !gst_gl_display_add_context (display,
GST_GL_CONTEXT (decoder->gl_context))) {
gst_clear_object (&decoder->gl_context);
if (!gst_gl_display_create_context (display,
(GstGLContext *) decoder->other_gl_context,
(GstGLContext **) & decoder->gl_context, NULL)) {
GST_WARNING_OBJECT (videodec, "failed to create OpenGL context");
return FALSE;
}
if (!gst_gl_display_add_context (display,
(GstGLContext *) decoder->gl_context)) {
GST_WARNING_OBJECT (videodec,
"failed to add the OpenGL context to the display");
return FALSE;
}
}
}
context = GST_GL_CONTEXT (decoder->gl_context);
if (!gst_gl_context_check_gl_version (context, SUPPORTED_GL_APIS, 3, 0)) {
GST_WARNING_OBJECT (videodec,
"OpenGL context could not support PBO download");
return FALSE;
}
gst_gl_context_thread_add (context,
(GstGLContextThreadFunc) gst_nv_decoder_check_cuda_device_from_context,
&ret);
if (!ret) {
GST_WARNING_OBJECT (videodec,
"Current OpenGL context is not CUDA-compatible");
return FALSE;
}
return TRUE;
}
#endif
gboolean
gst_nv_decoder_negotiate (GstNvDecoder * decoder,
GstVideoDecoder * videodec, GstVideoCodecState * input_state,
GstVideoCodecState ** output_state)
{
GstVideoCodecState *state;
GstVideoInfo *info;
g_return_val_if_fail (GST_IS_NV_DECODER (decoder), FALSE);
g_return_val_if_fail (GST_IS_VIDEO_DECODER (videodec), FALSE);
g_return_val_if_fail (input_state != NULL, FALSE);
g_return_val_if_fail (output_state != NULL, FALSE);
if (!decoder->configured) {
GST_ERROR_OBJECT (videodec, "Should configure decoder first");
return FALSE;
}
info = &decoder->info;
state = gst_video_decoder_set_output_state (videodec,
GST_VIDEO_INFO_FORMAT (info),
GST_VIDEO_INFO_WIDTH (info), GST_VIDEO_INFO_HEIGHT (info), input_state);
state->caps = gst_video_info_to_caps (&state->info);
if (*output_state)
gst_video_codec_state_unref (*output_state);
*output_state = state;
decoder->output_type = GST_NV_DECODER_OUTPUT_TYPE_SYSTEM;
{
GstCaps *caps;
caps = gst_pad_get_allowed_caps (GST_VIDEO_DECODER_SRC_PAD (videodec));
GST_DEBUG_OBJECT (videodec, "Allowed caps %" GST_PTR_FORMAT, caps);
if (!caps || gst_caps_is_any (caps)) {
GST_DEBUG_OBJECT (videodec,
"cannot determine output format, using system memory");
} else {
GstCapsFeatures *features;
guint size = gst_caps_get_size (caps);
guint i;
gboolean have_cuda = FALSE;
gboolean have_gl = FALSE;
for (i = 0; i < size; i++) {
features = gst_caps_get_features (caps, i);
if (features && gst_caps_features_contains (features,
GST_CAPS_FEATURE_MEMORY_CUDA_MEMORY)) {
GST_DEBUG_OBJECT (videodec, "found CUDA memory feature");
have_cuda = TRUE;
break;
}
#ifdef HAVE_NVCODEC_GST_GL
if (features && gst_caps_features_contains (features,
GST_CAPS_FEATURE_MEMORY_GL_MEMORY)) {
GST_DEBUG_OBJECT (videodec, "found GL memory feature");
have_gl = TRUE;
}
#endif
}
if (have_cuda)
decoder->output_type = GST_NV_DECODER_OUTPUT_TYPE_CUDA;
else if (have_gl)
decoder->output_type = GST_NV_DECODER_OUTPUT_TYPE_GL;
}
gst_clear_caps (&caps);
}
#ifdef HAVE_NVCODEC_GST_GL
if (decoder->output_type == GST_NV_DECODER_OUTPUT_TYPE_GL &&
!gst_nv_decoder_ensure_gl_context (decoder, GST_ELEMENT (videodec))) {
GST_WARNING_OBJECT (videodec,
"OpenGL context is not CUDA-compatible, fallback to system memory");
decoder->output_type = GST_NV_DECODER_OUTPUT_TYPE_SYSTEM;
}
#endif
switch (decoder->output_type) {
case GST_NV_DECODER_OUTPUT_TYPE_CUDA:
GST_DEBUG_OBJECT (videodec, "using CUDA memory");
gst_caps_set_features (state->caps, 0,
gst_caps_features_new (GST_CAPS_FEATURE_MEMORY_CUDA_MEMORY, NULL));
break;
#ifdef HAVE_NVCODEC_GST_GL
case GST_NV_DECODER_OUTPUT_TYPE_GL:
GST_DEBUG_OBJECT (videodec, "using GL memory");
gst_caps_set_features (state->caps, 0,
gst_caps_features_new (GST_CAPS_FEATURE_MEMORY_GL_MEMORY, NULL));
gst_caps_set_simple (state->caps, "texture-target", G_TYPE_STRING,
"2D", NULL);
break;
#endif
default:
GST_DEBUG_OBJECT (videodec, "using system memory");
break;
}
return TRUE;
}
static gboolean
gst_nv_decoder_ensure_cuda_pool (GstNvDecoder * decoder, GstQuery * query)
{
GstCaps *outcaps;
GstBufferPool *pool = NULL;
guint n, size, min, max;
GstVideoInfo vinfo = { 0, };
GstStructure *config;
gst_query_parse_allocation (query, &outcaps, NULL);
n = gst_query_get_n_allocation_pools (query);
if (n > 0) {
gst_query_parse_nth_allocation_pool (query, 0, &pool, &size, &min, &max);
if (pool && !GST_IS_CUDA_BUFFER_POOL (pool)) {
gst_object_unref (pool);
pool = NULL;
}
}
if (!pool) {
GST_DEBUG_OBJECT (decoder, "no downstream pool, create our pool");
pool = gst_cuda_buffer_pool_new (decoder->context);
if (outcaps)
gst_video_info_from_caps (&vinfo, outcaps);
size = (guint) vinfo.size;
min = max = 0;
}
config = gst_buffer_pool_get_config (pool);
gst_buffer_pool_config_set_params (config, outcaps, size, min, max);
gst_buffer_pool_config_add_option (config, GST_BUFFER_POOL_OPTION_VIDEO_META);
gst_buffer_pool_set_config (pool, config);
if (n > 0)
gst_query_set_nth_allocation_pool (query, 0, pool, size, min, max);
else
gst_query_add_allocation_pool (query, pool, size, min, max);
gst_object_unref (pool);
return TRUE;
}
#ifdef HAVE_NVCODEC_GST_GL
static gboolean
gst_nv_decoder_ensure_gl_pool (GstNvDecoder * decoder, GstQuery * query)
{
GstCaps *outcaps;
GstBufferPool *pool = NULL;
guint n, size, min, max;
GstVideoInfo vinfo = { 0, };
GstStructure *config;
GstGLContext *gl_context;
GST_DEBUG_OBJECT (decoder, "decide allocation");
if (!decoder->gl_context) {
GST_ERROR_OBJECT (decoder, "GL context is not available");
return FALSE;
}
gl_context = GST_GL_CONTEXT (decoder->gl_context);
gst_query_parse_allocation (query, &outcaps, NULL);
n = gst_query_get_n_allocation_pools (query);
if (n > 0)
gst_query_parse_nth_allocation_pool (query, 0, &pool, &size, &min, &max);
if (pool && !GST_IS_GL_BUFFER_POOL (pool)) {
gst_object_unref (pool);
pool = NULL;
}
if (!pool) {
GST_DEBUG_OBJECT (decoder, "no downstream pool, create our pool");
pool = gst_gl_buffer_pool_new (GST_GL_CONTEXT (gl_context));
if (outcaps)
gst_video_info_from_caps (&vinfo, outcaps);
size = (guint) vinfo.size;
min = max = 0;
}
config = gst_buffer_pool_get_config (pool);
gst_buffer_pool_config_set_params (config, outcaps, size, min, max);
gst_buffer_pool_config_add_option (config, GST_BUFFER_POOL_OPTION_VIDEO_META);
gst_buffer_pool_set_config (pool, config);
if (n > 0)
gst_query_set_nth_allocation_pool (query, 0, pool, size, min, max);
else
gst_query_add_allocation_pool (query, pool, size, min, max);
gst_object_unref (pool);
return TRUE;
}
#endif
gboolean
gst_nv_decoder_decide_allocation (GstNvDecoder * decoder,
GstVideoDecoder * videodec, GstQuery * query)
{
gboolean ret = TRUE;
GST_DEBUG_OBJECT (videodec, "decide allocation");
switch (decoder->output_type) {
case GST_NV_DECODER_OUTPUT_TYPE_SYSTEM:
/* GstVideoDecoder will take care this case */
break;
#ifdef HAVE_NVCODEC_GST_GL
case GST_NV_DECODER_OUTPUT_TYPE_GL:
ret = gst_nv_decoder_ensure_gl_pool (decoder, query);
break;
#endif
case GST_NV_DECODER_OUTPUT_TYPE_CUDA:
ret = gst_nv_decoder_ensure_cuda_pool (decoder, query);
break;
default:
g_assert_not_reached ();
return FALSE;
}
return ret;
}
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