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gstreamer/sys/mediafoundation/gstmfvideoenc.cpp
Seungha Yang fe4ec03a4b d3d11bufferpool: Hide buffer_size field from header 
User can get the required buffer size by using buffer pool config.
Since d3d11 implementation is a candidate for public library in the future,
we need to hide everything from header as much as possible.

Note that the total size of allocated d3d11 texture memory by GPU is not
controllable factor. It depends on hardware specific alignment/padding
requirement. So, GstD3D11 implementation updates actual buffer size
by allocating D3D11 texture, since there's no way to get CPU accessible
memory size without allocating real D3D11 texture.

Part-of: <https://gitlab.freedesktop.org/gstreamer/gst-plugins-bad/-/merge_requests/2482>
2021-08-22 00:46:19 +09:00

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/* GStreamer
* Copyright (C) 2020 Seungha Yang <seungha.yang@navercorp.com>
* Copyright (C) 2020 Seungha Yang <seungha@centricular.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 <gst/gst.h>
#include "gstmfvideoenc.h"
#include <wrl.h>
#include "gstmfvideobuffer.h"
#include <string.h>
#include <cmath>
#if GST_MF_HAVE_D3D11
#include <d3d10.h>
#endif
/* *INDENT-OFF* */
using namespace Microsoft::WRL;
G_BEGIN_DECLS
GST_DEBUG_CATEGORY_EXTERN (gst_mf_video_enc_debug);
#define GST_CAT_DEFAULT gst_mf_video_enc_debug
G_END_DECLS
/* *INDENT-ON* */
#define gst_mf_video_enc_parent_class parent_class
G_DEFINE_ABSTRACT_TYPE (GstMFVideoEnc, gst_mf_video_enc,
GST_TYPE_VIDEO_ENCODER);
static void gst_mf_video_enc_dispose (GObject * object);
static void gst_mf_video_enc_set_context (GstElement * element,
GstContext * context);
static gboolean gst_mf_video_enc_open (GstVideoEncoder * enc);
static gboolean gst_mf_video_enc_close (GstVideoEncoder * enc);
static gboolean gst_mf_video_enc_start (GstVideoEncoder * enc);
static gboolean gst_mf_video_enc_set_format (GstVideoEncoder * enc,
GstVideoCodecState * state);
static GstFlowReturn gst_mf_video_enc_handle_frame (GstVideoEncoder * enc,
GstVideoCodecFrame * frame);
static GstFlowReturn gst_mf_video_enc_finish (GstVideoEncoder * enc);
static gboolean gst_mf_video_enc_flush (GstVideoEncoder * enc);
static gboolean gst_mf_video_enc_propose_allocation (GstVideoEncoder * enc,
GstQuery * query);
static gboolean gst_mf_video_enc_sink_query (GstVideoEncoder * enc,
GstQuery * query);
static gboolean gst_mf_video_enc_src_query (GstVideoEncoder * enc,
GstQuery * query);
static HRESULT gst_mf_video_on_new_sample (GstMFTransform * object,
IMFSample * sample, GstMFVideoEnc * self);
static void
gst_mf_video_enc_class_init (GstMFVideoEncClass * klass)
{
GObjectClass *gobject_class = G_OBJECT_CLASS (klass);
GstElementClass *element_class = GST_ELEMENT_CLASS (klass);
GstVideoEncoderClass *videoenc_class = GST_VIDEO_ENCODER_CLASS (klass);
gobject_class->dispose = gst_mf_video_enc_dispose;
element_class->set_context = GST_DEBUG_FUNCPTR (gst_mf_video_enc_set_context);
videoenc_class->open = GST_DEBUG_FUNCPTR (gst_mf_video_enc_open);
videoenc_class->close = GST_DEBUG_FUNCPTR (gst_mf_video_enc_close);
videoenc_class->start = GST_DEBUG_FUNCPTR (gst_mf_video_enc_start);
videoenc_class->set_format = GST_DEBUG_FUNCPTR (gst_mf_video_enc_set_format);
videoenc_class->handle_frame =
GST_DEBUG_FUNCPTR (gst_mf_video_enc_handle_frame);
videoenc_class->finish = GST_DEBUG_FUNCPTR (gst_mf_video_enc_finish);
videoenc_class->flush = GST_DEBUG_FUNCPTR (gst_mf_video_enc_flush);
videoenc_class->propose_allocation =
GST_DEBUG_FUNCPTR (gst_mf_video_enc_propose_allocation);
videoenc_class->sink_query = GST_DEBUG_FUNCPTR (gst_mf_video_enc_sink_query);
videoenc_class->src_query = GST_DEBUG_FUNCPTR (gst_mf_video_enc_src_query);
gst_type_mark_as_plugin_api (GST_TYPE_MF_VIDEO_ENC, (GstPluginAPIFlags) 0);
}
static void
gst_mf_video_enc_init (GstMFVideoEnc * self)
{
}
static void
gst_mf_video_enc_dispose (GObject * object)
{
#if GST_MF_HAVE_D3D11
GstMFVideoEnc *self = GST_MF_VIDEO_ENC (object);
gst_clear_object (&self->d3d11_device);
gst_clear_object (&self->other_d3d11_device);
#endif
G_OBJECT_CLASS (parent_class)->dispose (object);
}
static void
gst_mf_video_enc_set_context (GstElement * element, GstContext * context)
{
#if GST_MF_HAVE_D3D11
GstMFVideoEnc *self = GST_MF_VIDEO_ENC (element);
gst_d3d11_handle_set_context (element, context, 0, &self->other_d3d11_device);
#endif
GST_ELEMENT_CLASS (parent_class)->set_context (element, context);
}
static gboolean
gst_mf_video_enc_open (GstVideoEncoder * enc)
{
GstMFVideoEnc *self = GST_MF_VIDEO_ENC (enc);
GstMFVideoEncClass *klass = GST_MF_VIDEO_ENC_GET_CLASS (enc);
GstMFVideoEncDeviceCaps *device_caps = &klass->device_caps;
GstMFTransformEnumParams enum_params = { 0, };
gint64 adapter_luid = 0;
MFT_REGISTER_TYPE_INFO output_type;
gboolean ret;
#if GST_MF_HAVE_D3D11
if (device_caps->d3d11_aware) {
HRESULT hr;
ID3D11Device *device_handle;
ComPtr < ID3D10Multithread > multi_thread;
GstD3D11Device *device;
if (!gst_d3d11_ensure_element_data (GST_ELEMENT_CAST (self),
device_caps->adapter, &self->other_d3d11_device)) {
GST_ERROR_OBJECT (self, "Other d3d11 device is unavailable");
return FALSE;
}
/* Create our own device with D3D11_CREATE_DEVICE_VIDEO_SUPPORT */
self->d3d11_device = gst_d3d11_device_new (device_caps->adapter,
D3D11_CREATE_DEVICE_VIDEO_SUPPORT);
if (!self->d3d11_device) {
GST_ERROR_OBJECT (self, "Couldn't create internal d3d11 device");
gst_clear_object (&self->other_d3d11_device);
return FALSE;
}
device = self->d3d11_device;
hr = MFCreateDXGIDeviceManager (&self->reset_token, &self->device_manager);
if (!gst_mf_result (hr)) {
GST_ERROR_OBJECT (self, "Couldn't create DXGI device manager");
gst_clear_object (&self->other_d3d11_device);
gst_clear_object (&self->d3d11_device);
return FALSE;
}
device_handle = gst_d3d11_device_get_device_handle (device);
/* Enable multi thread protection as this device will be shared with
* MFT */
hr = device_handle->QueryInterface (IID_PPV_ARGS (&multi_thread));
if (!gst_d3d11_result (hr, device)) {
GST_WARNING_OBJECT (self,
"device doesn't suport ID3D10Multithread interface");
gst_clear_object (&self->other_d3d11_device);
gst_clear_object (&self->d3d11_device);
}
multi_thread->SetMultithreadProtected (TRUE);
hr = self->device_manager->ResetDevice ((IUnknown *) device_handle,
self->reset_token);
if (!gst_mf_result (hr)) {
GST_ERROR_OBJECT (self, "Couldn't reset device with given d3d11 device");
gst_clear_object (&self->other_d3d11_device);
gst_clear_object (&self->d3d11_device);
return FALSE;
}
g_object_get (self->d3d11_device, "adapter-luid", &adapter_luid, NULL);
}
#endif
output_type.guidMajorType = MFMediaType_Video;
output_type.guidSubtype = klass->codec_id;
enum_params.category = MFT_CATEGORY_VIDEO_ENCODER;
enum_params.enum_flags = klass->enum_flags;
enum_params.output_typeinfo = &output_type;
enum_params.device_index = klass->device_index;
if (device_caps->d3d11_aware)
enum_params.adapter_luid = adapter_luid;
GST_DEBUG_OBJECT (self,
"Create MFT with enum flags: 0x%x, device index: %d, d3d11 aware: %d, "
"adapter-luid %" G_GINT64_FORMAT, klass->enum_flags, klass->device_index,
device_caps->d3d11_aware, adapter_luid);
self->transform = gst_mf_transform_new (&enum_params);
ret = !!self->transform;
if (!ret) {
GST_ERROR_OBJECT (self, "Cannot create MFT object");
return FALSE;
}
/* In case of hardware MFT, it will be running on async mode.
* And new output sample callback will be called from Media Foundation's
* internal worker queue thread */
if (self->transform &&
(enum_params.enum_flags & MFT_ENUM_FLAG_HARDWARE) ==
MFT_ENUM_FLAG_HARDWARE) {
self->async_mft = TRUE;
gst_mf_transform_set_new_sample_callback (self->transform,
(GstMFTransformNewSampleCallback) gst_mf_video_on_new_sample, self);
} else {
self->async_mft = FALSE;
}
return ret;
}
static gboolean
gst_mf_video_enc_close (GstVideoEncoder * enc)
{
GstMFVideoEnc *self = GST_MF_VIDEO_ENC (enc);
gst_clear_object (&self->transform);
if (self->input_state) {
gst_video_codec_state_unref (self->input_state);
self->input_state = NULL;
}
#if GST_MF_HAVE_D3D11
if (self->device_manager) {
self->device_manager->Release ();
self->device_manager = nullptr;
}
if (self->mf_allocator) {
self->mf_allocator->UninitializeSampleAllocator ();
self->mf_allocator->Release ();
self->mf_allocator = NULL;
}
gst_clear_object (&self->other_d3d11_device);
gst_clear_object (&self->d3d11_device);
#endif
return TRUE;
}
static gboolean
gst_mf_video_enc_start (GstVideoEncoder * enc)
{
/* Media Foundation Transform will shift PTS in case that B-frame is enabled.
* We need to adjust DTS correspondingly */
gst_video_encoder_set_min_pts (enc, GST_SECOND * 60 * 60 * 1000);
return TRUE;
}
static gboolean
gst_mf_video_enc_set_format (GstVideoEncoder * enc, GstVideoCodecState * state)
{
GstMFVideoEnc *self = GST_MF_VIDEO_ENC (enc);
GstMFVideoEncClass *klass = GST_MF_VIDEO_ENC_GET_CLASS (enc);
GstVideoInfo *info = &state->info;
ComPtr < IMFMediaType > in_type;
ComPtr < IMFMediaType > out_type;
GList *input_types = NULL;
GList *iter;
HRESULT hr;
gint fps_n, fps_d;
GST_DEBUG_OBJECT (self, "Set format");
gst_mf_video_enc_finish (enc);
self->mf_pts_offset = 0;
self->has_reorder_frame = FALSE;
self->last_ret = GST_FLOW_OK;
if (self->input_state)
gst_video_codec_state_unref (self->input_state);
self->input_state = gst_video_codec_state_ref (state);
if (!gst_mf_transform_open (self->transform)) {
GST_ERROR_OBJECT (self, "Failed to open MFT");
return FALSE;
}
#if GST_MF_HAVE_D3D11
if (self->device_manager) {
if (!gst_mf_transform_set_device_manager (self->transform,
self->device_manager)) {
GST_ERROR_OBJECT (self, "Couldn't set device manager");
return FALSE;
} else {
GST_DEBUG_OBJECT (self, "set device manager done");
}
}
#endif
hr = MFCreateMediaType (out_type.GetAddressOf ());
if (!gst_mf_result (hr))
return FALSE;
hr = out_type->SetGUID (MF_MT_MAJOR_TYPE, MFMediaType_Video);
if (!gst_mf_result (hr))
return FALSE;
if (klass->set_option) {
if (!klass->set_option (self, self->input_state, out_type.Get ())) {
GST_ERROR_OBJECT (self, "subclass failed to set option");
return FALSE;
}
}
fps_n = GST_VIDEO_INFO_FPS_N (info);
fps_d = GST_VIDEO_INFO_FPS_D (info);
if (fps_n <= 0 || fps_d <= 0) {
/* XXX: not sure why. NVIDIA MFT accepts 0/1 framerate, but Intel or
* Microsoft's software MFT doesn't accept 0/1 framerate.
* Need to set something meaningful value here therefore */
fps_n = 25;
fps_d = 1;
}
hr = MFSetAttributeRatio (out_type.Get (), MF_MT_FRAME_RATE, fps_n, fps_d);
if (!gst_mf_result (hr)) {
GST_ERROR_OBJECT (self,
"Couldn't set framerate %d/%d, hr: 0x%x", (guint) hr);
return FALSE;
}
hr = MFSetAttributeSize (out_type.Get (), MF_MT_FRAME_SIZE,
GST_VIDEO_INFO_WIDTH (info), GST_VIDEO_INFO_HEIGHT (info));
if (!gst_mf_result (hr)) {
GST_ERROR_OBJECT (self,
"Couldn't set resolution %dx%d, hr: 0x%x", GST_VIDEO_INFO_WIDTH (info),
GST_VIDEO_INFO_HEIGHT (info), (guint) hr);
return FALSE;
}
hr = MFSetAttributeRatio (out_type.Get (), MF_MT_PIXEL_ASPECT_RATIO,
GST_VIDEO_INFO_PAR_N (info), GST_VIDEO_INFO_PAR_D (info));
if (!gst_mf_result (hr)) {
GST_ERROR_OBJECT (self, "Couldn't set par %d/%d",
GST_VIDEO_INFO_PAR_N (info), GST_VIDEO_INFO_PAR_D (info));
return FALSE;
}
hr = out_type->SetUINT32 (MF_MT_INTERLACE_MODE, MFVideoInterlace_Progressive);
if (!gst_mf_result (hr)) {
GST_ERROR_OBJECT (self,
"Couldn't set interlace mode, hr: 0x%x", (guint) hr);
return FALSE;
}
if (!gst_mf_transform_set_output_type (self->transform, out_type.Get ())) {
GST_ERROR_OBJECT (self, "Couldn't set output type");
return FALSE;
}
if (!gst_mf_transform_get_input_available_types (self->transform,
&input_types)) {
GST_ERROR_OBJECT (self, "Couldn't get available input types");
return FALSE;
}
for (iter = input_types; iter; iter = g_list_next (iter)) {
GstVideoFormat format;
GUID subtype;
IMFMediaType *type = (IMFMediaType *) iter->data;
hr = type->GetGUID (MF_MT_SUBTYPE, &subtype);
if (!gst_mf_result (hr))
continue;
format = gst_mf_video_subtype_to_video_format (&subtype);
if (format != GST_VIDEO_INFO_FORMAT (info))
continue;
in_type = type;
}
g_list_free_full (input_types, (GDestroyNotify) gst_mf_media_type_release);
if (!in_type) {
GST_ERROR_OBJECT (self,
"Couldn't convert input caps %" GST_PTR_FORMAT " to media type",
state->caps);
return FALSE;
}
hr = MFSetAttributeSize (in_type.Get (), MF_MT_FRAME_SIZE,
GST_VIDEO_INFO_WIDTH (info), GST_VIDEO_INFO_HEIGHT (info));
if (!gst_mf_result (hr)) {
GST_ERROR_OBJECT (self, "Couldn't set frame size %dx%d",
GST_VIDEO_INFO_WIDTH (info), GST_VIDEO_INFO_HEIGHT (info));
return FALSE;
}
hr = in_type->SetUINT32 (MF_MT_INTERLACE_MODE, MFVideoInterlace_Progressive);
if (!gst_mf_result (hr)) {
GST_ERROR_OBJECT (self,
"Couldn't set interlace mode, hr: 0x%x", (guint) hr);
return FALSE;
}
hr = MFSetAttributeRatio (in_type.Get (), MF_MT_PIXEL_ASPECT_RATIO,
GST_VIDEO_INFO_PAR_N (info), GST_VIDEO_INFO_PAR_D (info));
if (!gst_mf_result (hr)) {
GST_ERROR_OBJECT (self, "Couldn't set par %d/%d",
GST_VIDEO_INFO_PAR_N (info), GST_VIDEO_INFO_PAR_D (info));
return FALSE;
}
hr = MFSetAttributeRatio (in_type.Get (), MF_MT_FRAME_RATE, fps_n, fps_d);
if (!gst_mf_result (hr)) {
GST_ERROR_OBJECT (self, "Couldn't set framerate ratio %d/%d", fps_n, fps_d);
return FALSE;
}
hr = in_type->SetUINT32 (MF_MT_DEFAULT_STRIDE,
GST_VIDEO_INFO_PLANE_STRIDE (info, 0));
if (!gst_mf_result (hr)) {
GST_ERROR_OBJECT (self, "Couldn't set default stride");
return FALSE;
}
if (!gst_mf_transform_set_input_type (self->transform, in_type.Get ())) {
GST_ERROR_OBJECT (self, "Couldn't set input media type");
return FALSE;
}
g_assert (klass->set_src_caps != NULL);
if (!klass->set_src_caps (self, self->input_state, out_type.Get ())) {
GST_ERROR_OBJECT (self, "subclass couldn't set src caps");
return FALSE;
}
#if GST_MF_HAVE_D3D11
if (self->mf_allocator) {
self->mf_allocator->UninitializeSampleAllocator ();
self->mf_allocator->Release ();
self->mf_allocator = NULL;
}
/* Check whether upstream is d3d11 element */
if (state->caps) {
GstCapsFeatures *features;
ComPtr < IMFVideoSampleAllocatorEx > allocator;
features = gst_caps_get_features (state->caps, 0);
if (features &&
gst_caps_features_contains (features,
GST_CAPS_FEATURE_MEMORY_D3D11_MEMORY)) {
GST_DEBUG_OBJECT (self, "found D3D11 memory feature");
hr = MFCreateVideoSampleAllocatorEx (IID_PPV_ARGS (&allocator));
if (!gst_mf_result (hr))
GST_WARNING_OBJECT (self,
"IMFVideoSampleAllocatorEx interface is unavailable");
}
if (allocator) {
do {
ComPtr < IMFAttributes > attr;
hr = MFCreateAttributes (&attr, 4);
if (!gst_mf_result (hr))
break;
/* Only one buffer per sample
* (multiple sample is usually for multi-view things) */
hr = attr->SetUINT32 (GST_GUID_MF_SA_BUFFERS_PER_SAMPLE, 1);
if (!gst_mf_result (hr))
break;
hr = attr->SetUINT32 (GST_GUID_MF_SA_D3D11_USAGE, D3D11_USAGE_DEFAULT);
if (!gst_mf_result (hr))
break;
/* TODO: Check if we need to use keyed-mutex */
hr = attr->SetUINT32 (GST_GUID_MF_SA_D3D11_SHARED_WITHOUT_MUTEX, TRUE);
if (!gst_mf_result (hr))
break;
hr = attr->SetUINT32 (GST_GUID_MF_SA_D3D11_BINDFLAGS,
D3D11_BIND_VIDEO_ENCODER);
if (!gst_mf_result (hr))
break;
hr = allocator->SetDirectXManager (self->device_manager);
if (!gst_mf_result (hr))
break;
hr = allocator->InitializeSampleAllocatorEx (
/* min samples, since we are running on async mode,
* at least 2 samples would be required */
2,
/* max samples, why 16 + 2? it's just magic number
* (H264 max dpb size 16 + our min sample size 2) */
16 + 2, attr.Get (), in_type.Get ()
);
if (!gst_mf_result (hr))
break;
GST_DEBUG_OBJECT (self, "IMFVideoSampleAllocatorEx is initialized");
self->mf_allocator = allocator.Detach ();
} while (0);
}
}
#endif
return TRUE;
}
static void
gst_mf_video_buffer_free (GstVideoFrame * frame)
{
if (!frame)
return;
gst_video_frame_unmap (frame);
g_free (frame);
}
static gboolean
gst_mf_video_enc_frame_needs_copy (GstVideoFrame * vframe)
{
/* Single plane data can be used without copy */
if (GST_VIDEO_FRAME_N_PLANES (vframe) == 1)
return FALSE;
switch (GST_VIDEO_FRAME_FORMAT (vframe)) {
case GST_VIDEO_FORMAT_I420:
{
guint8 *data, *other_data;
guint size;
/* Unexpected stride size, Media Foundation doesn't provide API for
* per plane stride information */
if (GST_VIDEO_FRAME_PLANE_STRIDE (vframe, 0) !=
2 * GST_VIDEO_FRAME_PLANE_STRIDE (vframe, 1) ||
GST_VIDEO_FRAME_PLANE_STRIDE (vframe, 1) !=
GST_VIDEO_FRAME_PLANE_STRIDE (vframe, 2)) {
return TRUE;
}
size = GST_VIDEO_FRAME_PLANE_STRIDE (vframe, 0) *
GST_VIDEO_FRAME_HEIGHT (vframe);
if (size + GST_VIDEO_FRAME_PLANE_OFFSET (vframe, 0) !=
GST_VIDEO_FRAME_PLANE_OFFSET (vframe, 1))
return TRUE;
data = (guint8 *) GST_VIDEO_FRAME_PLANE_DATA (vframe, 0);
other_data = (guint8 *) GST_VIDEO_FRAME_PLANE_DATA (vframe, 1);
if (data + size != other_data)
return TRUE;
size = GST_VIDEO_FRAME_PLANE_STRIDE (vframe, 1) *
GST_VIDEO_FRAME_COMP_HEIGHT (vframe, 1);
if (size + GST_VIDEO_FRAME_PLANE_OFFSET (vframe, 1) !=
GST_VIDEO_FRAME_PLANE_OFFSET (vframe, 2))
return TRUE;
data = (guint8 *) GST_VIDEO_FRAME_PLANE_DATA (vframe, 1);
other_data = (guint8 *) GST_VIDEO_FRAME_PLANE_DATA (vframe, 2);
if (data + size != other_data)
return TRUE;
return FALSE;
}
case GST_VIDEO_FORMAT_NV12:
case GST_VIDEO_FORMAT_P010_10LE:
case GST_VIDEO_FORMAT_P016_LE:
{
guint8 *data, *other_data;
guint size;
/* Unexpected stride size, Media Foundation doesn't provide API for
* per plane stride information */
if (GST_VIDEO_FRAME_PLANE_STRIDE (vframe, 0) !=
GST_VIDEO_FRAME_PLANE_STRIDE (vframe, 1)) {
return TRUE;
}
size = GST_VIDEO_FRAME_PLANE_STRIDE (vframe, 0) *
GST_VIDEO_FRAME_HEIGHT (vframe);
/* Unexpected padding */
if (size + GST_VIDEO_FRAME_PLANE_OFFSET (vframe, 0) !=
GST_VIDEO_FRAME_PLANE_OFFSET (vframe, 1))
return TRUE;
data = (guint8 *) GST_VIDEO_FRAME_PLANE_DATA (vframe, 0);
other_data = (guint8 *) GST_VIDEO_FRAME_PLANE_DATA (vframe, 1);
if (data + size != other_data)
return TRUE;
return FALSE;
}
default:
g_assert_not_reached ();
return TRUE;
}
return TRUE;
}
typedef struct
{
LONGLONG mf_pts;
} GstMFVideoEncFrameData;
static gboolean
gst_mf_video_enc_process_input (GstMFVideoEnc * self,
GstVideoCodecFrame * frame, IMFSample * sample)
{
GstMFVideoEncClass *klass = GST_MF_VIDEO_ENC_GET_CLASS (self);
HRESULT hr;
gboolean unset_force_keyframe = FALSE;
GstMFVideoEncFrameData *frame_data = NULL;
gboolean res;
frame_data = g_new0 (GstMFVideoEncFrameData, 1);
frame_data->mf_pts = frame->pts / 100;
gst_video_codec_frame_set_user_data (frame,
frame_data, (GDestroyNotify) g_free);
hr = sample->SetSampleTime (frame_data->mf_pts);
if (!gst_mf_result (hr))
return FALSE;
hr = sample->
SetSampleDuration (GST_CLOCK_TIME_IS_VALID (frame->duration) ? frame->
duration / 100 : 0);
if (!gst_mf_result (hr))
return FALSE;
if (GST_VIDEO_CODEC_FRAME_IS_FORCE_KEYFRAME (frame)) {
if (klass->device_caps.force_keyframe) {
unset_force_keyframe =
gst_mf_transform_set_codec_api_uint32 (self->transform,
&CODECAPI_AVEncVideoForceKeyFrame, TRUE);
} else {
GST_WARNING_OBJECT (self, "encoder does not support force keyframe");
}
}
/* Unlock temporary so that we can output frame from Media Foundation's
* worker thread.
* While we are processing input, MFT might notify
* METransformHaveOutput event from Media Foundation's internal worker queue
* thread. Then we will output encoded data from the thread synchroniously,
* not from streaming (this) thread */
if (self->async_mft)
GST_VIDEO_ENCODER_STREAM_UNLOCK (self);
res = gst_mf_transform_process_input (self->transform, sample);
if (self->async_mft)
GST_VIDEO_ENCODER_STREAM_LOCK (self);
if (unset_force_keyframe) {
gst_mf_transform_set_codec_api_uint32 (self->transform,
&CODECAPI_AVEncVideoForceKeyFrame, FALSE);
}
if (!res) {
GST_ERROR_OBJECT (self, "Failed to process input");
return FALSE;
}
return TRUE;
}
static GstVideoCodecFrame *
gst_mf_video_enc_find_output_frame (GstMFVideoEnc * self, LONGLONG mf_pts)
{
GList *l, *walk = gst_video_encoder_get_frames (GST_VIDEO_ENCODER (self));
GstVideoCodecFrame *ret = NULL;
GstVideoCodecFrame *closest = NULL;
LONGLONG min_pts_abs_diff = 0;
for (l = walk; l; l = l->next) {
GstVideoCodecFrame *frame = (GstVideoCodecFrame *) l->data;
GstMFVideoEncFrameData *data = (GstMFVideoEncFrameData *)
gst_video_codec_frame_get_user_data (frame);
LONGLONG abs_diff;
if (!data)
continue;
if (mf_pts == data->mf_pts) {
ret = frame;
break;
}
abs_diff = std::abs (mf_pts - data->mf_pts);
if (!closest || abs_diff < min_pts_abs_diff) {
closest = frame;
min_pts_abs_diff = abs_diff;
}
}
if (!ret && closest)
ret = closest;
if (ret) {
gst_video_codec_frame_ref (ret);
} else {
/* XXX: Shouldn't happen, but possible if no GstVideoCodecFrame holds
* user data for some reasons */
GST_WARNING_OBJECT (self,
"Failed to find closest GstVideoCodecFrame with MF pts %"
G_GINT64_FORMAT, mf_pts);
ret = gst_video_encoder_get_oldest_frame (GST_VIDEO_ENCODER (self));
}
if (walk)
g_list_free_full (walk, (GDestroyNotify) gst_video_codec_frame_unref);
return ret;
}
static HRESULT
gst_mf_video_enc_finish_sample (GstMFVideoEnc * self, IMFSample * sample)
{
HRESULT hr = S_OK;
BYTE *data;
ComPtr < IMFMediaBuffer > media_buffer;
GstBuffer *buffer;
GstFlowReturn res = GST_FLOW_ERROR;
GstVideoCodecFrame *frame;
LONGLONG sample_timestamp;
LONGLONG sample_duration;
LONGLONG target_mf_pts;
UINT64 mf_dts;
UINT32 keyframe = FALSE;
DWORD buffer_len;
GstClockTime pts, dts, duration;
hr = sample->GetBufferByIndex (0, media_buffer.GetAddressOf ());
if (!gst_mf_result (hr))
goto done;
hr = media_buffer->Lock (&data, NULL, &buffer_len);
if (!gst_mf_result (hr))
goto done;
buffer = gst_buffer_new_allocate (NULL, buffer_len, NULL);
gst_buffer_fill (buffer, 0, data, buffer_len);
media_buffer->Unlock ();
sample->GetSampleTime (&sample_timestamp);
target_mf_pts = sample_timestamp;
sample->GetSampleDuration (&sample_duration);
sample->GetUINT32 (MFSampleExtension_CleanPoint, &keyframe);
hr = sample->GetUINT64 (MFSampleExtension_DecodeTimestamp, &mf_dts);
if (FAILED (hr)) {
mf_dts = sample_timestamp;
hr = S_OK;
}
pts = sample_timestamp * 100;
dts = mf_dts * 100;
duration = sample_duration * 100;
GST_LOG_OBJECT (self, "Finish sample, MF pts %" GST_TIME_FORMAT " MF dts %"
GST_TIME_FORMAT ", MF duration %" GST_TIME_FORMAT,
GST_TIME_ARGS (pts), GST_TIME_ARGS (dts), GST_TIME_ARGS (duration));
/* NOTE: When B-frame is enabled, MFT shows following pattern
* (input timestamp starts from 1000:00:00.000000000, and 30fps)
*
* Frame-1: MF pts 0:00.033333300 MF dts 0:00.000000000
* Frame-2: MF pts 0:00.133333300 MF dts 0:00.033333300
* Frame-3: MF pts 0:00.066666600 MF dts 0:00.066666600
* Frame-4: MF pts 0:00.099999900 MF dts 0:00.100000000
*
* - Sounds MFT doesn't support negative timestamp, so PTS of each frame seems
* to be shifthed
* - DTS is likely based on timestamp we've set to input sample,
* but some frames has (especially Frame-4 case) unexpected PTS and
* even PTS < DTS. That would be the result of PTS shifting
*
* To handle this case,
* - Calculate timestamp offset "Frame-1 PTS" - "Frame-1 DTS" (== duration),
* and compensate PTS/DTS of each frame
* - Needs additional offset for DTS to compenstate GST/MF timescale difference
* (MF uses 100ns timescale). So DTS offset should be "PTS offset + 100ns"
* - Find corresponding GstVideoCodecFrame by using compensated PTS.
* Note that MFT doesn't support user-data for tracing input/output sample
* pair. So, timestamp based lookup is the only way to map MF sample
* and our GstVideoCodecFrame
*/
if (self->has_reorder_frame) {
/* This would be the first frame */
if (self->mf_pts_offset == 0) {
LONGLONG mf_pts_offset = -1;
if (sample_timestamp > mf_dts) {
mf_pts_offset = sample_timestamp - mf_dts;
GST_DEBUG_OBJECT (self, "Calculates PTS offset using \"PTS - DTS\": %"
G_GINT64_FORMAT, mf_pts_offset);
} else if (sample_duration > 0) {
mf_pts_offset = sample_duration;
GST_DEBUG_OBJECT (self, "Calculates PTS offset using duration: %"
G_GINT64_FORMAT, mf_pts_offset);
} else {
GST_WARNING_OBJECT (self, "Cannot calculate PTS offset");
}
self->mf_pts_offset = mf_pts_offset;
}
if (self->mf_pts_offset > 0) {
target_mf_pts -= self->mf_pts_offset;
pts -= (self->mf_pts_offset * 100);
/* +1 to compensate timescale difference */
dts -= ((self->mf_pts_offset + 1) * 100);
}
}
frame = gst_mf_video_enc_find_output_frame (self, target_mf_pts);
if (frame) {
if (keyframe) {
GST_DEBUG_OBJECT (self, "Keyframe pts %" GST_TIME_FORMAT,
GST_TIME_ARGS (frame->pts));
GST_VIDEO_CODEC_FRAME_SET_SYNC_POINT (frame);
}
frame->output_buffer = buffer;
/* Update DTS only if B-frame was enabled, but use input frame pts as-is.
* Otherwise we will lost at most 100ns precision */
if (self->has_reorder_frame) {
frame->dts = dts;
} else {
frame->dts = frame->pts;
}
/* make sure PTS > DTS */
if (GST_CLOCK_TIME_IS_VALID (frame->pts) &&
GST_CLOCK_TIME_IS_VALID (frame->dts) && frame->pts < frame->dts) {
GST_WARNING_OBJECT (self, "Calculated DTS %" GST_TIME_FORMAT
" is larger than PTS %" GST_TIME_FORMAT, GST_TIME_ARGS (frame->pts),
GST_TIME_ARGS (frame->dts));
/* XXX: just set clock-time-none? */
frame->dts = frame->pts;
}
GST_LOG_OBJECT (self, "Frame pts %" GST_TIME_FORMAT ", Frame DTS %"
GST_TIME_FORMAT, GST_TIME_ARGS (frame->pts),
GST_TIME_ARGS (frame->dts));
res = gst_video_encoder_finish_frame (GST_VIDEO_ENCODER (self), frame);
} else {
GST_BUFFER_PTS (buffer) = pts;
GST_BUFFER_DTS (buffer) = dts;
GST_BUFFER_DURATION (buffer) = duration;
if (keyframe) {
GST_DEBUG_OBJECT (self, "Keyframe pts %" GST_TIME_FORMAT,
GST_BUFFER_PTS (buffer));
GST_BUFFER_FLAG_UNSET (buffer, GST_BUFFER_FLAG_DELTA_UNIT);
} else {
GST_BUFFER_FLAG_SET (buffer, GST_BUFFER_FLAG_DELTA_UNIT);
}
GST_LOG_OBJECT (self, "Buffer pts %" GST_TIME_FORMAT ", Buffer DTS %"
GST_TIME_FORMAT, GST_TIME_ARGS (pts), GST_TIME_ARGS (dts));
res = gst_pad_push (GST_VIDEO_ENCODER_SRC_PAD (self), buffer);
}
done:
self->last_ret = res;
return hr;
}
static GstFlowReturn
gst_mf_video_enc_process_output (GstMFVideoEnc * self)
{
ComPtr < IMFSample > sample;
GstFlowReturn res = GST_FLOW_ERROR;
res = gst_mf_transform_get_output (self->transform, &sample);
if (res != GST_FLOW_OK)
return res;
gst_mf_video_enc_finish_sample (self, sample.Get ());
return self->last_ret;
}
static gboolean
gst_mf_video_enc_create_input_sample (GstMFVideoEnc * self,
GstVideoCodecFrame * frame, IMFSample ** sample)
{
HRESULT hr;
ComPtr < IMFSample > new_sample;
ComPtr < IMFMediaBuffer > media_buffer;
ComPtr < IGstMFVideoBuffer > video_buffer;
GstVideoInfo *info = &self->input_state->info;
gint i, j;
GstVideoFrame *vframe = NULL;
BYTE *data = NULL;
gboolean need_copy;
vframe = g_new0 (GstVideoFrame, 1);
if (!gst_video_frame_map (vframe, info, frame->input_buffer, GST_MAP_READ)) {
GST_ERROR_OBJECT (self, "Couldn't map input frame");
g_free (vframe);
return FALSE;
}
hr = MFCreateSample (&new_sample);
if (!gst_mf_result (hr))
goto error;
/* Check if we can forward this memory to Media Foundation without copy */
need_copy = gst_mf_video_enc_frame_needs_copy (vframe);
if (need_copy) {
GST_TRACE_OBJECT (self, "Copy input buffer into Media Foundation memory");
hr = MFCreateMemoryBuffer (GST_VIDEO_INFO_SIZE (info), &media_buffer);
} else {
GST_TRACE_OBJECT (self, "Can use input buffer without copy");
hr = IGstMFVideoBuffer::CreateInstanceWrapped (&vframe->info,
(BYTE *) GST_VIDEO_FRAME_PLANE_DATA (vframe, 0),
GST_VIDEO_INFO_SIZE (&vframe->info), &media_buffer);
}
if (!gst_mf_result (hr))
goto error;
if (!need_copy) {
hr = media_buffer.As (&video_buffer);
if (!gst_mf_result (hr))
goto error;
} else {
hr = media_buffer->Lock (&data, NULL, NULL);
if (!gst_mf_result (hr))
goto error;
for (i = 0; i < GST_VIDEO_INFO_N_PLANES (info); i++) {
guint8 *src, *dst;
gint src_stride, dst_stride;
gint width;
src = (guint8 *) GST_VIDEO_FRAME_PLANE_DATA (vframe, i);
dst = data + GST_VIDEO_INFO_PLANE_OFFSET (info, i);
src_stride = GST_VIDEO_FRAME_PLANE_STRIDE (vframe, i);
dst_stride = GST_VIDEO_INFO_PLANE_STRIDE (info, i);
width = GST_VIDEO_INFO_COMP_WIDTH (info, i)
* GST_VIDEO_INFO_COMP_PSTRIDE (info, i);
for (j = 0; j < GST_VIDEO_INFO_COMP_HEIGHT (info, i); j++) {
memcpy (dst, src, width);
src += src_stride;
dst += dst_stride;
}
}
media_buffer->Unlock ();
}
hr = media_buffer->SetCurrentLength (GST_VIDEO_INFO_SIZE (info));
if (!gst_mf_result (hr))
goto error;
hr = new_sample->AddBuffer (media_buffer.Get ());
if (!gst_mf_result (hr))
goto error;
if (!need_copy) {
/* IGstMFVideoBuffer will hold GstVideoFrame (+ GstBuffer), then it will be
* cleared when it's no more referenced by Media Foundation internals */
hr = video_buffer->SetUserData ((gpointer) vframe,
(GDestroyNotify) gst_mf_video_buffer_free);
if (!gst_mf_result (hr))
goto error;
} else {
gst_video_frame_unmap (vframe);
g_free (vframe);
vframe = NULL;
}
*sample = new_sample.Detach ();
return TRUE;
error:
if (vframe) {
gst_video_frame_unmap (vframe);
g_free (vframe);
}
return FALSE;
}
#if GST_MF_HAVE_D3D11
static gboolean
gst_mf_video_enc_create_input_sample_d3d11 (GstMFVideoEnc * self,
GstVideoCodecFrame * frame, IMFSample ** sample)
{
HRESULT hr;
ComPtr < IMFSample > new_sample;
ComPtr < IMFMediaBuffer > mf_buffer;
ComPtr < IMFDXGIBuffer > dxgi_buffer;
ComPtr < ID3D11Texture2D > mf_texture;
ComPtr < IDXGIResource > dxgi_resource;
ComPtr < ID3D11Texture2D > shared_texture;
ComPtr < ID3D11Query > query;
D3D11_QUERY_DESC query_desc;
BOOL sync_done = FALSE;
HANDLE shared_handle;
GstMemory *mem;
GstD3D11Memory *dmem;
ID3D11Texture2D *texture;
ID3D11Device *device_handle;
ID3D11DeviceContext *context_handle;
GstMapInfo info;
D3D11_BOX src_box = { 0, };
D3D11_TEXTURE2D_DESC dst_desc, src_desc;
guint subidx;
if (!self->mf_allocator) {
GST_WARNING_OBJECT (self, "IMFVideoSampleAllocatorEx was configured");
return FALSE;
}
mem = gst_buffer_peek_memory (frame->input_buffer, 0);
if (!gst_is_d3d11_memory (mem)) {
GST_WARNING_OBJECT (self, "Non-d3d11 memory");
return FALSE;
}
dmem = (GstD3D11Memory *) mem;
device_handle = gst_d3d11_device_get_device_handle (dmem->device);
context_handle = gst_d3d11_device_get_device_context_handle (dmem->device);
/* 1) Allocate new encoding surface */
hr = self->mf_allocator->AllocateSample (&new_sample);
if (!gst_mf_result (hr)) {
GST_WARNING_OBJECT (self,
"Couldn't allocate new sample via IMFVideoSampleAllocatorEx");
return FALSE;
}
hr = new_sample->GetBufferByIndex (0, &mf_buffer);
if (!gst_mf_result (hr)) {
GST_WARNING_OBJECT (self, "Couldn't get IMFMediaBuffer from sample");
return FALSE;
}
hr = mf_buffer.As (&dxgi_buffer);
if (!gst_mf_result (hr)) {
GST_WARNING_OBJECT (self, "Couldn't get IMFDXGIBuffer from IMFMediaBuffer");
return FALSE;
}
hr = dxgi_buffer->GetResource (IID_PPV_ARGS (&mf_texture));
if (!gst_mf_result (hr)) {
GST_WARNING_OBJECT (self,
"Couldn't get ID3D11Texture2D from IMFDXGIBuffer");
return FALSE;
}
hr = mf_texture.As (&dxgi_resource);
if (!gst_mf_result (hr)) {
GST_WARNING_OBJECT (self,
"Couldn't get IDXGIResource from ID3D11Texture2D");
return FALSE;
}
hr = dxgi_resource->GetSharedHandle (&shared_handle);
if (!gst_mf_result (hr)) {
GST_WARNING_OBJECT (self, "Couldn't get shared handle from IDXGIResource");
return FALSE;
}
/* Allocation succeeded. Now open shared texture to access it from
* other device */
hr = device_handle->OpenSharedResource (shared_handle,
IID_PPV_ARGS (&shared_texture));
if (!gst_mf_result (hr)) {
GST_WARNING_OBJECT (self, "Couldn't open shared resource");
return FALSE;
}
/* 2) Copy upstream texture to mf's texture */
/* Map memory so that ensure pending upload from staging texture */
if (!gst_memory_map (mem, &info,
(GstMapFlags) (GST_MAP_READ | GST_MAP_D3D11))) {
GST_ERROR_OBJECT (self, "Couldn't map d3d11 memory");
return FALSE;
}
texture = (ID3D11Texture2D *) info.data;
texture->GetDesc (&src_desc);
shared_texture->GetDesc (&dst_desc);
subidx = gst_d3d11_memory_get_subresource_index (dmem);
/* src/dst texture size might be different if padding was used.
* select smaller size */
src_box.left = 0;
src_box.top = 0;
src_box.front = 0;
src_box.back = 1;
src_box.right = MIN (src_desc.Width, dst_desc.Width);
src_box.bottom = MIN (src_desc.Height, dst_desc.Height);
/* CopySubresourceRegion() might not be able to guarantee
* copying. To ensure it, we will make use of d3d11 query */
query_desc.Query = D3D11_QUERY_EVENT;
query_desc.MiscFlags = 0;
hr = device_handle->CreateQuery (&query_desc, &query);
if (!gst_d3d11_result (hr, dmem->device)) {
GST_ERROR_OBJECT (self, "Couldn't Create event query");
return FALSE;
}
gst_d3d11_device_lock (dmem->device);
context_handle->CopySubresourceRegion (shared_texture.Get (), 0, 0, 0, 0,
texture, subidx, &src_box);
context_handle->End (query.Get ());
/* Wait until all issued GPU commands are finished */
do {
context_handle->GetData (query.Get (), &sync_done, sizeof (BOOL), 0);
} while (!sync_done && (hr == S_OK || hr == S_FALSE));
if (!gst_d3d11_result (hr, dmem->device)) {
GST_ERROR_OBJECT (self, "Couldn't sync GPU operation");
gst_d3d11_device_unlock (dmem->device);
gst_memory_unmap (mem, &info);
return FALSE;
}
gst_d3d11_device_unlock (dmem->device);
gst_memory_unmap (mem, &info);
*sample = new_sample.Detach ();
return TRUE;
}
#endif
static GstFlowReturn
gst_mf_video_enc_handle_frame (GstVideoEncoder * enc,
GstVideoCodecFrame * frame)
{
GstMFVideoEnc *self = GST_MF_VIDEO_ENC (enc);
GstFlowReturn ret = GST_FLOW_OK;
ComPtr < IMFSample > sample;
if (self->last_ret != GST_FLOW_OK) {
GST_DEBUG_OBJECT (self, "Last return was %s", gst_flow_get_name (ret));
ret = self->last_ret;
goto done;
}
#if GST_MF_HAVE_D3D11
if (self->mf_allocator &&
!gst_mf_video_enc_create_input_sample_d3d11 (self, frame, &sample)) {
GST_WARNING_OBJECT (self, "Failed to create IMFSample for D3D11");
sample = nullptr;
}
#endif
if (!sample && !gst_mf_video_enc_create_input_sample (self, frame, &sample)) {
GST_ERROR_OBJECT (self, "Failed to create IMFSample");
ret = GST_FLOW_ERROR;
goto done;
}
if (!gst_mf_video_enc_process_input (self, frame, sample.Get ())) {
GST_ERROR_OBJECT (self, "Failed to process input");
ret = GST_FLOW_ERROR;
goto done;
}
/* Don't call process_output for async (hardware) MFT. We will output
* encoded data from gst_mf_video_on_new_sample() callback which is called
* from Media Foundation's internal worker queue thread */
if (!self->async_mft) {
do {
ret = gst_mf_video_enc_process_output (self);
} while (ret == GST_FLOW_OK);
}
if (ret == GST_MF_TRANSFORM_FLOW_NEED_DATA)
ret = GST_FLOW_OK;
done:
gst_video_codec_frame_unref (frame);
return ret;
}
static GstFlowReturn
gst_mf_video_enc_finish (GstVideoEncoder * enc)
{
GstMFVideoEnc *self = GST_MF_VIDEO_ENC (enc);
GstFlowReturn ret = GST_FLOW_OK;
if (!self->transform)
return GST_FLOW_OK;
/* Unlock temporary so that we can output frame from Media Foundation's
* worker thread */
if (self->async_mft)
GST_VIDEO_ENCODER_STREAM_UNLOCK (enc);
gst_mf_transform_drain (self->transform);
if (self->async_mft)
GST_VIDEO_ENCODER_STREAM_LOCK (enc);
if (!self->async_mft) {
do {
ret = gst_mf_video_enc_process_output (self);
} while (ret == GST_FLOW_OK);
}
if (ret == GST_MF_TRANSFORM_FLOW_NEED_DATA)
ret = GST_FLOW_OK;
return ret;
}
static gboolean
gst_mf_video_enc_flush (GstVideoEncoder * enc)
{
GstMFVideoEnc *self = GST_MF_VIDEO_ENC (enc);
if (!self->transform)
goto out;
/* Unlock while flushing, while flushing, new sample callback might happen */
if (self->async_mft)
GST_VIDEO_ENCODER_STREAM_UNLOCK (enc);
gst_mf_transform_flush (self->transform);
if (self->async_mft)
GST_VIDEO_ENCODER_STREAM_LOCK (enc);
out:
self->last_ret = GST_FLOW_OK;
return TRUE;
}
static gboolean
gst_mf_video_enc_propose_allocation (GstVideoEncoder * enc, GstQuery * query)
{
#if GST_MF_HAVE_D3D11
GstMFVideoEnc *self = GST_MF_VIDEO_ENC (enc);
GstVideoInfo info;
GstBufferPool *pool = NULL;
GstCaps *caps;
guint size;
GstD3D11Device *device = self->other_d3d11_device;
gst_query_parse_allocation (query, &caps, NULL);
if (caps == NULL)
return FALSE;
if (!gst_video_info_from_caps (&info, caps))
return FALSE;
if (gst_query_get_n_allocation_pools (query) == 0) {
GstCapsFeatures *features;
GstStructure *config;
gboolean is_d3d11 = FALSE;
features = gst_caps_get_features (caps, 0);
if (features && gst_caps_features_contains (features,
GST_CAPS_FEATURE_MEMORY_D3D11_MEMORY)) {
GST_DEBUG_OBJECT (self, "Allocation caps supports d3d11 memory");
pool = gst_d3d11_buffer_pool_new (device);
is_d3d11 = TRUE;
} else {
pool = gst_video_buffer_pool_new ();
}
config = gst_buffer_pool_get_config (pool);
gst_buffer_pool_config_add_option (config,
GST_BUFFER_POOL_OPTION_VIDEO_META);
/* d3d11 pool does not support video alignment */
if (!is_d3d11) {
gst_buffer_pool_config_add_option (config,
GST_BUFFER_POOL_OPTION_VIDEO_ALIGNMENT);
} else {
GstD3D11AllocationParams *d3d11_params;
guint misc_flags = 0;
gboolean is_hardware = FALSE;
gint i;
g_object_get (device, "hardware", &is_hardware, NULL);
/* In case of hardware, set D3D11_RESOURCE_MISC_SHARED_KEYEDMUTEX flag
* so that it can be shared with other d3d11 devices */
if (is_hardware)
misc_flags = D3D11_RESOURCE_MISC_SHARED_KEYEDMUTEX;
d3d11_params =
gst_buffer_pool_config_get_d3d11_allocation_params (config);
if (!d3d11_params) {
d3d11_params = gst_d3d11_allocation_params_new (device, &info,
(GstD3D11AllocationFlags) 0, 0);
} else {
for (i = 0; i < GST_VIDEO_INFO_N_PLANES (&info); i++)
d3d11_params->desc[i].MiscFlags |= misc_flags;
}
gst_buffer_pool_config_set_d3d11_allocation_params (config, d3d11_params);
gst_d3d11_allocation_params_free (d3d11_params);
}
size = GST_VIDEO_INFO_SIZE (&info);
gst_buffer_pool_config_set_params (config, caps, size, 0, 0);
if (!gst_buffer_pool_set_config (pool, config))
goto config_failed;
/* d3d11 buffer pool will update buffer size based on allocated texture,
* get size from config again */
if (is_d3d11) {
config = gst_buffer_pool_get_config (pool);
gst_buffer_pool_config_get_params (config,
nullptr, &size, nullptr, nullptr);
gst_structure_free (config);
}
gst_query_add_allocation_pool (query, pool, size, 0, 0);
gst_object_unref (pool);
}
gst_query_add_allocation_meta (query, GST_VIDEO_META_API_TYPE, NULL);
return TRUE;
/* ERRORS */
config_failed:
{
GST_ERROR_OBJECT (self, "failed to set config");
gst_object_unref (pool);
return FALSE;
}
#else
return GST_VIDEO_ENCODER_CLASS (parent_class)->propose_allocation (enc,
query);
#endif
}
static gboolean
gst_mf_video_enc_sink_query (GstVideoEncoder * enc, GstQuery * query)
{
#if GST_MF_HAVE_D3D11
GstMFVideoEnc *self = GST_MF_VIDEO_ENC (enc);
switch (GST_QUERY_TYPE (query)) {
case GST_QUERY_CONTEXT:
if (gst_d3d11_handle_context_query (GST_ELEMENT (self),
query, self->other_d3d11_device)) {
return TRUE;
}
break;
default:
break;
}
#endif
return GST_VIDEO_ENCODER_CLASS (parent_class)->sink_query (enc, query);
}
static gboolean
gst_mf_video_enc_src_query (GstVideoEncoder * enc, GstQuery * query)
{
#if GST_MF_HAVE_D3D11
GstMFVideoEnc *self = GST_MF_VIDEO_ENC (enc);
switch (GST_QUERY_TYPE (query)) {
case GST_QUERY_CONTEXT:
if (gst_d3d11_handle_context_query (GST_ELEMENT (self),
query, self->other_d3d11_device)) {
return TRUE;
}
break;
default:
break;
}
#endif
return GST_VIDEO_ENCODER_CLASS (parent_class)->src_query (enc, query);
}
static HRESULT
gst_mf_video_on_new_sample (GstMFTransform * object,
IMFSample * sample, GstMFVideoEnc * self)
{
GST_LOG_OBJECT (self, "New Sample callback");
/* NOTE: this callback will be called from Media Foundation's internal
* worker queue thread */
GST_VIDEO_ENCODER_STREAM_LOCK (self);
gst_mf_video_enc_finish_sample (self, sample);
GST_VIDEO_ENCODER_STREAM_UNLOCK (self);
return S_OK;
}
typedef struct
{
guint profile;
const gchar *profile_str;
} GstMFVideoEncProfileMap;
static void
gst_mf_video_enc_enum_internal (GstMFTransform * transform, GUID & subtype,
GstObject * d3d11_device, GstMFVideoEncDeviceCaps * device_caps,
GstCaps ** sink_template, GstCaps ** src_template)
{
HRESULT hr;
MFT_REGISTER_TYPE_INFO *infos;
UINT32 info_size;
gint i;
GstCaps *src_caps = NULL;
GstCaps *sink_caps = NULL;
GstCaps *d3d11_caps = NULL;
GValue *supported_formats = NULL;
GValue *profiles = NULL;
gboolean have_I420 = FALSE;
gboolean have_NV12 = FALSE;
gboolean have_P010 = FALSE;
gboolean d3d11_aware = FALSE;
gchar *device_name = NULL;
IMFActivate *activate;
IMFTransform *encoder;
ICodecAPI *codec_api;
ComPtr < IMFMediaType > out_type;
GstMFVideoEncProfileMap h264_profile_map[] = {
{eAVEncH264VProfile_High, "high"},
{eAVEncH264VProfile_Main, "main"},
{eAVEncH264VProfile_Base, "baseline"},
{0, NULL},
};
GstMFVideoEncProfileMap hevc_profile_map[] = {
{eAVEncH265VProfile_Main_420_8, "main"},
{eAVEncH265VProfile_Main_420_10, "main-10"},
{0, NULL},
};
GstMFVideoEncProfileMap *profile_to_check = NULL;
static gchar *h264_caps_str =
"video/x-h264, stream-format=(string) byte-stream, alignment=(string) au";
static gchar *hevc_caps_str =
"video/x-h265, stream-format=(string) byte-stream, alignment=(string) au";
static gchar *vp9_caps_str = "video/x-vp9";
static gchar *codec_caps_str = NULL;
/* NOTE: depending on environment,
* some enumerated h/w MFT might not be usable (e.g., multiple GPU case) */
if (!gst_mf_transform_open (transform))
return;
activate = gst_mf_transform_get_activate_handle (transform);
if (!activate) {
GST_WARNING_OBJECT (transform, "No IMFActivate interface available");
return;
}
encoder = gst_mf_transform_get_transform_handle (transform);
if (!encoder) {
GST_WARNING_OBJECT (transform, "No IMFTransform interface available");
return;
}
codec_api = gst_mf_transform_get_codec_api_handle (transform);
if (!codec_api) {
GST_WARNING_OBJECT (transform, "No ICodecAPI interface available");
return;
}
g_object_get (transform, "device-name", &device_name, NULL);
if (!device_name) {
GST_WARNING_OBJECT (transform, "Unknown device name");
return;
}
g_free (device_name);
hr = activate->GetAllocatedBlob (MFT_INPUT_TYPES_Attributes,
(UINT8 **) & infos, &info_size);
if (!gst_mf_result (hr))
return;
for (i = 0; i < info_size / sizeof (MFT_REGISTER_TYPE_INFO); i++) {
GstVideoFormat format;
const GstVideoFormatInfo *format_info;
GValue val = G_VALUE_INIT;
format = gst_mf_video_subtype_to_video_format (&infos[i].guidSubtype);
if (format == GST_VIDEO_FORMAT_UNKNOWN)
continue;
format_info = gst_video_format_get_info (format);
if (GST_VIDEO_FORMAT_INFO_IS_RGB (format_info)) {
GST_DEBUG_OBJECT (transform, "Skip %s format",
GST_VIDEO_FORMAT_INFO_NAME (format_info));
continue;
}
if (!supported_formats) {
supported_formats = g_new0 (GValue, 1);
g_value_init (supported_formats, GST_TYPE_LIST);
}
switch (format) {
/* media foundation has duplicated formats IYUV and I420 */
case GST_VIDEO_FORMAT_I420:
if (have_I420)
continue;
have_I420 = TRUE;
break;
case GST_VIDEO_FORMAT_NV12:
have_NV12 = TRUE;
break;
case GST_VIDEO_FORMAT_P010_10LE:
have_P010 = TRUE;
break;
default:
break;
}
g_value_init (&val, G_TYPE_STRING);
g_value_set_static_string (&val, gst_video_format_to_string (format));
gst_value_list_append_and_take_value (supported_formats, &val);
}
CoTaskMemFree (infos);
if (!supported_formats) {
GST_WARNING_OBJECT (transform, "Couldn't figure out supported format");
return;
}
if (IsEqualGUID (MFVideoFormat_H264, subtype)) {
profile_to_check = h264_profile_map;
codec_caps_str = h264_caps_str;
} else if (IsEqualGUID (MFVideoFormat_HEVC, subtype)) {
profile_to_check = hevc_profile_map;
codec_caps_str = hevc_caps_str;
} else if (IsEqualGUID (MFVideoFormat_VP90, subtype)) {
codec_caps_str = vp9_caps_str;
} else {
g_assert_not_reached ();
return;
}
if (profile_to_check) {
hr = MFCreateMediaType (&out_type);
if (!gst_mf_result (hr))
return;
hr = out_type->SetGUID (MF_MT_MAJOR_TYPE, MFMediaType_Video);
if (!gst_mf_result (hr))
return;
hr = out_type->SetGUID (MF_MT_SUBTYPE, subtype);
if (!gst_mf_result (hr))
return;
hr = out_type->SetUINT32 (MF_MT_AVG_BITRATE, 2048000);
if (!gst_mf_result (hr))
return;
hr = MFSetAttributeRatio (out_type.Get (), MF_MT_FRAME_RATE, 30, 1);
if (!gst_mf_result (hr))
return;
hr = out_type->SetUINT32 (MF_MT_INTERLACE_MODE,
MFVideoInterlace_Progressive);
if (!gst_mf_result (hr))
return;
hr = MFSetAttributeSize (out_type.Get (), MF_MT_FRAME_SIZE, 1920, 1080);
if (!gst_mf_result (hr))
return;
i = 0;
do {
GValue profile_val = G_VALUE_INIT;
guint mf_profile = profile_to_check[i].profile;
const gchar *profile_str = profile_to_check[i].profile_str;
i++;
if (mf_profile == 0)
break;
g_assert (profile_str != NULL);
hr = out_type->SetUINT32 (MF_MT_MPEG2_PROFILE, mf_profile);
if (!gst_mf_result (hr))
return;
if (!gst_mf_transform_set_output_type (transform, out_type.Get ()))
continue;
if (!profiles) {
profiles = g_new0 (GValue, 1);
g_value_init (profiles, GST_TYPE_LIST);
}
/* Add "constrained-baseline" in addition to "baseline" */
if (profile_str == "baseline") {
g_value_init (&profile_val, G_TYPE_STRING);
g_value_set_static_string (&profile_val, "constrained-baseline");
gst_value_list_append_and_take_value (profiles, &profile_val);
}
g_value_init (&profile_val, G_TYPE_STRING);
g_value_set_static_string (&profile_val, profile_str);
gst_value_list_append_and_take_value (profiles, &profile_val);
} while (1);
if (!profiles) {
GST_WARNING_OBJECT (transform, "Couldn't query supported profile");
return;
}
}
src_caps = gst_caps_from_string (codec_caps_str);
if (profiles) {
gst_caps_set_value (src_caps, "profile", profiles);
g_value_unset (profiles);
g_free (profiles);
}
sink_caps = gst_caps_new_empty_simple ("video/x-raw");
/* FIXME: don't hardcode max resolution, but MF doesn't provide
* API for querying supported max resolution... */
gst_caps_set_simple (sink_caps,
"width", GST_TYPE_INT_RANGE, 64, 8192,
"height", GST_TYPE_INT_RANGE, 64, 8192, NULL);
gst_caps_set_simple (src_caps,
"width", GST_TYPE_INT_RANGE, 64, 8192,
"height", GST_TYPE_INT_RANGE, 64, 8192, NULL);
#if GST_MF_HAVE_D3D11
/* Check whether this MFT can support D3D11 */
if (d3d11_device && (have_NV12 || have_P010)) {
g_object_get (transform, "d3d11-aware", &d3d11_aware, NULL);
GST_DEBUG_OBJECT (transform, "d3d11 aware %d", d3d11_aware);
}
if (d3d11_device && (have_NV12 || have_P010) && d3d11_aware) {
guint adapter = 0;
GValue d3d11_formats = G_VALUE_INIT;
g_object_get (d3d11_device, "adapter", &adapter, NULL);
d3d11_caps = gst_caps_copy (sink_caps);
g_value_init (&d3d11_formats, GST_TYPE_LIST);
if (have_NV12) {
GValue val = G_VALUE_INIT;
g_value_init (&val, G_TYPE_STRING);
g_value_set_static_string (&val, "NV12");
gst_value_list_append_and_take_value (&d3d11_formats, &val);
}
if (have_P010) {
GValue val = G_VALUE_INIT;
g_value_init (&val, G_TYPE_STRING);
g_value_set_static_string (&val, "P010_10LE");
gst_value_list_append_and_take_value (&d3d11_formats, &val);
}
gst_caps_set_value (d3d11_caps, "format", &d3d11_formats);
g_value_unset (&d3d11_formats);
gst_caps_set_features_simple (d3d11_caps,
gst_caps_features_from_string (GST_CAPS_FEATURE_MEMORY_D3D11_MEMORY));
device_caps->d3d11_aware = TRUE;
device_caps->adapter = adapter;
}
#endif
gst_caps_set_value (sink_caps, "format", supported_formats);
g_value_unset (supported_formats);
g_free (supported_formats);
if (d3d11_caps)
gst_caps_append (sink_caps, d3d11_caps);
*sink_template = sink_caps;
*src_template = src_caps;
#define CHECK_DEVICE_CAPS(codec_obj,api,val) \
if (SUCCEEDED((codec_obj)->IsSupported(&(api)))) {\
(device_caps)->val = TRUE; \
}
CHECK_DEVICE_CAPS (codec_api, CODECAPI_AVEncCommonRateControlMode, rc_mode);
CHECK_DEVICE_CAPS (codec_api, CODECAPI_AVEncCommonQuality, quality);
CHECK_DEVICE_CAPS (codec_api, CODECAPI_AVEncAdaptiveMode, adaptive_mode);
CHECK_DEVICE_CAPS (codec_api, CODECAPI_AVEncCommonBufferSize, buffer_size);
CHECK_DEVICE_CAPS (codec_api, CODECAPI_AVEncCommonMaxBitRate, max_bitrate);
CHECK_DEVICE_CAPS (codec_api,
CODECAPI_AVEncCommonQualityVsSpeed, quality_vs_speed);
CHECK_DEVICE_CAPS (codec_api, CODECAPI_AVEncH264CABACEnable, cabac);
CHECK_DEVICE_CAPS (codec_api, CODECAPI_AVEncH264SPSID, sps_id);
CHECK_DEVICE_CAPS (codec_api, CODECAPI_AVEncH264PPSID, pps_id);
CHECK_DEVICE_CAPS (codec_api, CODECAPI_AVEncMPVDefaultBPictureCount, bframes);
CHECK_DEVICE_CAPS (codec_api, CODECAPI_AVEncMPVGOPSize, gop_size);
CHECK_DEVICE_CAPS (codec_api, CODECAPI_AVEncNumWorkerThreads, threads);
CHECK_DEVICE_CAPS (codec_api, CODECAPI_AVEncVideoContentType, content_type);
CHECK_DEVICE_CAPS (codec_api, CODECAPI_AVEncVideoEncodeQP, qp);
CHECK_DEVICE_CAPS (codec_api,
CODECAPI_AVEncVideoForceKeyFrame, force_keyframe);
CHECK_DEVICE_CAPS (codec_api, CODECAPI_AVLowLatencyMode, low_latency);
CHECK_DEVICE_CAPS (codec_api, CODECAPI_AVEncVideoMinQP, min_qp);
CHECK_DEVICE_CAPS (codec_api, CODECAPI_AVEncVideoMaxQP, max_qp);
CHECK_DEVICE_CAPS (codec_api,
CODECAPI_AVEncVideoEncodeFrameTypeQP, frame_type_qp);
CHECK_DEVICE_CAPS (codec_api, CODECAPI_AVEncVideoMaxNumRefFrame, max_num_ref);
if (device_caps->max_num_ref) {
VARIANT min;
VARIANT max;
VARIANT step;
hr = codec_api->GetParameterRange (&CODECAPI_AVEncVideoMaxNumRefFrame,
&min, &max, &step);
if (SUCCEEDED (hr)) {
device_caps->max_num_ref_high = max.uiVal;
device_caps->max_num_ref_low = min.uiVal;
VariantClear (&min);
VariantClear (&max);
VariantClear (&step);
} else {
device_caps->max_num_ref = FALSE;
}
}
#undef CHECK_DEVICE_CAPS
return;
}
static GstMFTransform *
gst_mf_video_enc_enum (guint enum_flags, GUID * subtype, guint device_index,
GstMFVideoEncDeviceCaps * device_caps, GstObject * d3d11_device,
GstCaps ** sink_template, GstCaps ** src_template)
{
GstMFTransformEnumParams enum_params = { 0, };
MFT_REGISTER_TYPE_INFO output_type;
GstMFTransform *transform;
gint64 adapter_luid = 0;
*sink_template = NULL;
*src_template = NULL;
memset (device_caps, 0, sizeof (GstMFVideoEncDeviceCaps));
if (!IsEqualGUID (MFVideoFormat_H264, *subtype) &&
!IsEqualGUID (MFVideoFormat_HEVC, *subtype) &&
!IsEqualGUID (MFVideoFormat_VP90, *subtype)) {
GST_ERROR ("Unknown subtype GUID");
return NULL;
}
if (d3d11_device) {
g_object_get (d3d11_device, "adapter-luid", &adapter_luid, NULL);
if (!adapter_luid) {
GST_ERROR ("Couldn't get adapter LUID");
return NULL;
}
}
output_type.guidMajorType = MFMediaType_Video;
output_type.guidSubtype = *subtype;
enum_params.category = MFT_CATEGORY_VIDEO_ENCODER;
enum_params.output_typeinfo = &output_type;
enum_params.device_index = device_index;
enum_params.enum_flags = enum_flags;
enum_params.adapter_luid = adapter_luid;
transform = gst_mf_transform_new (&enum_params);
if (!transform)
return NULL;
gst_mf_video_enc_enum_internal (transform, output_type.guidSubtype,
d3d11_device, device_caps, sink_template, src_template);
return transform;
}
static void
gst_mf_video_enc_register_internal (GstPlugin * plugin, guint rank,
GUID * subtype, GTypeInfo * type_info,
const GstMFVideoEncDeviceCaps * device_caps,
guint32 enum_flags, guint device_index, GstMFTransform * transform,
GstCaps * sink_caps, GstCaps * src_caps)
{
GType type;
GTypeInfo local_type_info;
gchar *type_name;
gchar *feature_name;
gint i;
GstMFVideoEncClassData *cdata;
gboolean is_default = TRUE;
gchar *device_name = NULL;
static gchar *type_name_prefix = NULL;
static gchar *feature_name_prefix = NULL;
if (IsEqualGUID (MFVideoFormat_H264, *subtype)) {
type_name_prefix = "H264";
feature_name_prefix = "h264";
} else if (IsEqualGUID (MFVideoFormat_HEVC, *subtype)) {
type_name_prefix = "H265";
feature_name_prefix = "h265";
} else if (IsEqualGUID (MFVideoFormat_VP90, *subtype)) {
type_name_prefix = "VP9";
feature_name_prefix = "vp9";
} else {
g_assert_not_reached ();
return;
}
/* Must be checked already */
g_object_get (transform, "device-name", &device_name, NULL);
g_assert (device_name != NULL);
cdata = g_new0 (GstMFVideoEncClassData, 1);
cdata->sink_caps = gst_caps_copy (sink_caps);
cdata->src_caps = gst_caps_copy (src_caps);
cdata->device_name = device_name;
cdata->device_caps = *device_caps;
cdata->enum_flags = enum_flags;
cdata->device_index = device_index;
local_type_info = *type_info;
local_type_info.class_data = cdata;
GST_MINI_OBJECT_FLAG_SET (cdata->sink_caps,
GST_MINI_OBJECT_FLAG_MAY_BE_LEAKED);
GST_MINI_OBJECT_FLAG_SET (cdata->src_caps,
GST_MINI_OBJECT_FLAG_MAY_BE_LEAKED);
type_name = g_strdup_printf ("GstMF%sEnc", type_name_prefix);
feature_name = g_strdup_printf ("mf%senc", feature_name_prefix);
i = 1;
while (g_type_from_name (type_name) != 0) {
g_free (type_name);
g_free (feature_name);
type_name = g_strdup_printf ("GstMF%sDevice%dEnc", type_name_prefix, i);
feature_name = g_strdup_printf ("mf%sdevice%denc", feature_name_prefix, i);
is_default = FALSE;
i++;
}
cdata->is_default = is_default;
type =
g_type_register_static (GST_TYPE_MF_VIDEO_ENC, type_name,
&local_type_info, (GTypeFlags) 0);
/* make lower rank than default device */
if (rank > 0 && !is_default)
rank--;
if (!gst_element_register (plugin, feature_name, rank, type))
GST_WARNING ("Failed to register plugin '%s'", type_name);
g_free (type_name);
g_free (feature_name);
}
void
gst_mf_video_enc_register (GstPlugin * plugin, guint rank, GUID * subtype,
GTypeInfo * type_info, GList * d3d11_device)
{
GstMFTransform *transform = NULL;
GstCaps *sink_template = NULL;
GstCaps *src_template = NULL;
guint enum_flags;
GstMFVideoEncDeviceCaps device_caps;
guint i;
/* register hardware encoders first */
enum_flags = (MFT_ENUM_FLAG_HARDWARE | MFT_ENUM_FLAG_ASYNCMFT |
MFT_ENUM_FLAG_SORTANDFILTER | MFT_ENUM_FLAG_SORTANDFILTER_APPROVED_ONLY);
if (d3d11_device) {
GList *iter;
for (iter = d3d11_device; iter; iter = g_list_next (iter)) {
GstObject *device = (GstObject *) iter->data;
transform = gst_mf_video_enc_enum (enum_flags, subtype, 0, &device_caps,
device, &sink_template, &src_template);
/* No more MFT to enumerate */
if (!transform)
break;
/* Failed to open MFT */
if (!sink_template) {
gst_clear_object (&transform);
continue;
}
gst_mf_video_enc_register_internal (plugin, rank, subtype, type_info,
&device_caps, enum_flags, 0, transform, sink_template, src_template);
gst_clear_object (&transform);
gst_clear_caps (&sink_template);
gst_clear_caps (&src_template);
}
} else {
/* AMD seems to be able to support up to 12 GPUs */
for (i = 0; i < 12; i++) {
transform = gst_mf_video_enc_enum (enum_flags, subtype, i, &device_caps,
NULL, &sink_template, &src_template);
/* No more MFT to enumerate */
if (!transform)
break;
/* Failed to open MFT */
if (!sink_template) {
gst_clear_object (&transform);
continue;
}
gst_mf_video_enc_register_internal (plugin, rank, subtype, type_info,
&device_caps, enum_flags, i, transform, sink_template, src_template);
gst_clear_object (&transform);
gst_clear_caps (&sink_template);
gst_clear_caps (&src_template);
}
}
/* register software encoders */
enum_flags = (MFT_ENUM_FLAG_SYNCMFT |
MFT_ENUM_FLAG_SORTANDFILTER | MFT_ENUM_FLAG_SORTANDFILTER_APPROVED_ONLY);
transform = gst_mf_video_enc_enum (enum_flags, subtype, 0, &device_caps,
NULL, &sink_template, &src_template);
if (!transform)
goto done;
if (!sink_template)
goto done;
gst_mf_video_enc_register_internal (plugin, rank, subtype, type_info,
&device_caps, enum_flags, 0, transform, sink_template, src_template);
done:
gst_clear_object (&transform);
gst_clear_caps (&sink_template);
gst_clear_caps (&src_template);
}
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