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gstreamer/subprojects/gst-plugins-bad/sys/mediafoundation/gstmfvideoencoder.cpp

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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 "gstmfvideoencoder.h"
#include "gstmfvideobuffer.h"
#include "gstmfplatloader.h"
#include <wrl.h>
#include <string.h>
#include <cmath>
#if GST_MF_HAVE_D3D11
#include <d3d10.h>
#endif
/* *INDENT-OFF* */
using namespace Microsoft::WRL;
/* *INDENT-ON* */
GST_DEBUG_CATEGORY_EXTERN (gst_mf_video_encoder_debug);
#define GST_CAT_DEFAULT gst_mf_video_encoder_debug
/**
* GstMFVideoEncoder:
*
* Base class for MediaFoundation video encoders
*
* Since: 1.22
*/
#define gst_mf_video_encoder_parent_class parent_class
G_DEFINE_ABSTRACT_TYPE (GstMFVideoEncoder, gst_mf_video_encoder,
GST_TYPE_VIDEO_ENCODER);
static void gst_mf_video_encoder_dispose (GObject * object);
static void gst_mf_video_encoder_set_context (GstElement * element,
GstContext * context);
static gboolean gst_mf_video_encoder_open (GstVideoEncoder * enc);
static gboolean gst_mf_video_encoder_close (GstVideoEncoder * enc);
static gboolean gst_mf_video_encoder_start (GstVideoEncoder * enc);
static gboolean gst_mf_video_encoder_set_format (GstVideoEncoder * enc,
GstVideoCodecState * state);
static GstFlowReturn gst_mf_video_encoder_handle_frame (GstVideoEncoder * enc,
GstVideoCodecFrame * frame);
static GstFlowReturn gst_mf_video_encoder_finish (GstVideoEncoder * enc);
static gboolean gst_mf_video_encoder_flush (GstVideoEncoder * enc);
static gboolean gst_mf_video_encoder_propose_allocation (GstVideoEncoder * enc,
GstQuery * query);
static gboolean gst_mf_video_encoder_sink_query (GstVideoEncoder * enc,
GstQuery * query);
static gboolean gst_mf_video_encoder_src_query (GstVideoEncoder * enc,
GstQuery * query);
static HRESULT gst_mf_video_on_new_sample (GstMFTransform * object,
IMFSample * sample, GstMFVideoEncoder * self);
static void
gst_mf_video_encoder_class_init (GstMFVideoEncoderClass * 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_encoder_dispose;
element_class->set_context =
GST_DEBUG_FUNCPTR (gst_mf_video_encoder_set_context);
videoenc_class->open = GST_DEBUG_FUNCPTR (gst_mf_video_encoder_open);
videoenc_class->close = GST_DEBUG_FUNCPTR (gst_mf_video_encoder_close);
videoenc_class->start = GST_DEBUG_FUNCPTR (gst_mf_video_encoder_start);
videoenc_class->set_format =
GST_DEBUG_FUNCPTR (gst_mf_video_encoder_set_format);
videoenc_class->handle_frame =
GST_DEBUG_FUNCPTR (gst_mf_video_encoder_handle_frame);
videoenc_class->finish = GST_DEBUG_FUNCPTR (gst_mf_video_encoder_finish);
videoenc_class->flush = GST_DEBUG_FUNCPTR (gst_mf_video_encoder_flush);
videoenc_class->propose_allocation =
GST_DEBUG_FUNCPTR (gst_mf_video_encoder_propose_allocation);
videoenc_class->sink_query =
GST_DEBUG_FUNCPTR (gst_mf_video_encoder_sink_query);
videoenc_class->src_query =
GST_DEBUG_FUNCPTR (gst_mf_video_encoder_src_query);
gst_type_mark_as_plugin_api (GST_TYPE_MF_VIDEO_ENCODER,
(GstPluginAPIFlags) 0);
}
static void
gst_mf_video_encoder_init (GstMFVideoEncoder * self)
{
}
static void
gst_mf_video_encoder_dispose (GObject * object)
{
#if GST_MF_HAVE_D3D11
GstMFVideoEncoder *self = GST_MF_VIDEO_ENCODER (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_encoder_set_context (GstElement * element, GstContext * context)
{
#if GST_MF_HAVE_D3D11
GstMFVideoEncoder *self = GST_MF_VIDEO_ENCODER (element);
GstMFVideoEncoderClass *klass = GST_MF_VIDEO_ENCODER_GET_CLASS (self);
GstMFVideoEncoderDeviceCaps *device_caps = &klass->device_caps;
if (device_caps->d3d11_aware) {
gst_d3d11_handle_set_context_for_adapter_luid (element, context,
device_caps->adapter_luid, &self->other_d3d11_device);
}
#endif
GST_ELEMENT_CLASS (parent_class)->set_context (element, context);
}
static gboolean
gst_mf_video_encoder_open (GstVideoEncoder * enc)
{
GstMFVideoEncoder *self = GST_MF_VIDEO_ENCODER (enc);
GstMFVideoEncoderClass *klass = GST_MF_VIDEO_ENCODER_GET_CLASS (enc);
GstMFVideoEncoderDeviceCaps *device_caps = &klass->device_caps;
GstMFTransformEnumParams enum_params = { 0, };
MFT_REGISTER_TYPE_INFO output_type;
#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_for_adapter_luid (GST_ELEMENT (self),
device_caps->adapter_luid, &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_for_adapter_luid (device_caps->adapter_luid,
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 = GstMFCreateDXGIDeviceManager (&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;
}
}
#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 = device_caps->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, device_caps->adapter_luid);
self->transform = gst_mf_transform_new (&enum_params);
if (!self->transform) {
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 TRUE;
}
static gboolean
gst_mf_video_encoder_close (GstVideoEncoder * enc)
{
GstMFVideoEncoder *self = GST_MF_VIDEO_ENCODER (enc);
gst_clear_object (&self->transform);
if (self->input_state) {
gst_video_codec_state_unref (self->input_state);
self->input_state = nullptr;
}
#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 = nullptr;
}
gst_clear_object (&self->other_d3d11_device);
gst_clear_object (&self->d3d11_device);
gst_clear_d3d11_fence (&self->fence);
#endif
return TRUE;
}
static gboolean
gst_mf_video_encoder_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_encoder_init_mft (GstMFVideoEncoder * self)
{
GstMFVideoEncoderClass *klass = GST_MF_VIDEO_ENCODER_GET_CLASS (self);
GstVideoInfo *info = &self->input_state->info;
GstCaps *caps = self->input_state->caps;
ComPtr < IMFMediaType > in_type;
ComPtr < IMFMediaType > out_type;
GList *input_types = nullptr;
GList *iter;
HRESULT hr;
gint fps_n, fps_d;
GST_DEBUG_OBJECT (self, "Set format");
gst_mf_video_encoder_finish (GST_VIDEO_ENCODER (self));
self->mf_pts_offset = 0;
self->has_reorder_frame = FALSE;
self->last_ret = GST_FLOW_OK;
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
/* TODO: We support I420/NV12/P010 only for now.
* Consider other subsampling once we add it */
if ((info->width % 2) != 0 || (info->height % 2) != 0) {
self->need_align = TRUE;
} else {
self->need_align = FALSE;
}
hr = MFCreateMediaType (&out_type);
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", 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 != nullptr);
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 = nullptr;
}
/* Check whether upstream is d3d11 element */
GstCapsFeatures *features;
ComPtr < IMFVideoSampleAllocatorEx > allocator;
features = gst_caps_get_features (caps, 0);
if (features &&
gst_caps_features_contains (features,
GST_CAPS_FEATURE_MEMORY_D3D11_MEMORY)) {
GST_DEBUG_OBJECT (self, "found D3D11 memory feature");
hr = GstMFCreateVideoSampleAllocatorEx (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 gboolean
gst_mf_video_encoder_set_format (GstVideoEncoder * enc,
GstVideoCodecState * state)
{
GstMFVideoEncoder *self = GST_MF_VIDEO_ENCODER (enc);
GST_DEBUG_OBJECT (self, "Set format");
if (self->input_state)
gst_video_codec_state_unref (self->input_state);
self->input_state = gst_video_codec_state_ref (state);
return gst_mf_video_encoder_init_mft (self);
}
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_encoder_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;
} GstMFVideoEncoderFrameData;
static gboolean
gst_mf_video_encoder_process_input (GstMFVideoEncoder * self,
GstVideoCodecFrame * frame, IMFSample * sample)
{
GstMFVideoEncoderClass *klass = GST_MF_VIDEO_ENCODER_GET_CLASS (self);
HRESULT hr;
gboolean unset_force_keyframe = FALSE;
GstMFVideoEncoderFrameData *frame_data = nullptr;
gboolean res;
frame_data = g_new0 (GstMFVideoEncoderFrameData, 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_encoder_find_output_frame (GstMFVideoEncoder * self,
LONGLONG mf_pts)
{
GList *l, *walk = gst_video_encoder_get_frames (GST_VIDEO_ENCODER (self));
GstVideoCodecFrame *ret = nullptr;
GstVideoCodecFrame *closest = nullptr;
LONGLONG min_pts_abs_diff = 0;
for (l = walk; l; l = l->next) {
GstVideoCodecFrame *frame = (GstVideoCodecFrame *) l->data;
GstMFVideoEncoderFrameData *data = (GstMFVideoEncoderFrameData *)
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_encoder_finish_sample (GstMFVideoEncoder * 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);
if (!gst_mf_result (hr))
goto done;
hr = media_buffer->Lock (&data, nullptr, &buffer_len);
if (!gst_mf_result (hr))
goto done;
buffer = gst_buffer_new_allocate (nullptr, buffer_len, nullptr);
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_encoder_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_encoder_process_output (GstMFVideoEncoder * 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_encoder_finish_sample (self, sample.Get ());
return self->last_ret;
}
static gboolean
gst_mf_video_encoder_create_input_sample (GstMFVideoEncoder * 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 = nullptr;
BYTE *data = nullptr;
gboolean need_copy = self->need_align;
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 */
if (!need_copy)
need_copy = gst_mf_video_encoder_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, nullptr, nullptr);
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 = nullptr;
}
*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_encoder_create_input_sample_d3d11 (GstMFVideoEncoder * self,
GstVideoCodecFrame * frame, IMFSample ** sample)
{
GstMFVideoEncoderClass *klass = GST_MF_VIDEO_ENCODER_GET_CLASS (self);
GstMFVideoEncoderDeviceCaps *device_caps = &klass->device_caps;
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;
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;
gint64 adapter_luid;
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 = GST_D3D11_MEMORY_CAST (mem);
g_object_get (dmem->device, "adapter-luid", &adapter_luid, nullptr);
if (adapter_luid != device_caps->adapter_luid) {
GST_LOG_OBJECT (self, "Buffer from different GPU");
return FALSE;
}
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);
gst_d3d11_device_lock (dmem->device);
if (self->fence && self->fence->device != dmem->device)
gst_clear_d3d11_fence (&self->fence);
if (!self->fence)
self->fence = gst_d3d11_device_create_fence (dmem->device);
if (!self->fence) {
GST_ERROR_OBJECT (self, "Couldn't create fence object");
gst_d3d11_device_unlock (dmem->device);
gst_memory_unmap (mem, &info);
return FALSE;
}
context_handle->CopySubresourceRegion (shared_texture.Get (), 0, 0, 0, 0,
texture, subidx, &src_box);
if (!gst_d3d11_fence_signal (self->fence) ||
!gst_d3d11_fence_wait (self->fence)) {
GST_ERROR_OBJECT (self, "Couldn't sync GPU operation");
gst_clear_d3d11_fence (&self->fence);
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_encoder_handle_frame (GstVideoEncoder * enc,
GstVideoCodecFrame * frame)
{
GstMFVideoEncoder *self = GST_MF_VIDEO_ENCODER (enc);
GstFlowReturn ret = GST_FLOW_OK;
ComPtr < IMFSample > sample;
GstMFVideoEncoderClass *klass = GST_MF_VIDEO_ENCODER_GET_CLASS (self);
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 (klass->check_reconfigure (self) && !gst_mf_video_encoder_init_mft (self)) {
GST_ELEMENT_ERROR (self, STREAM, ENCODE, (nullptr),
("Failed to reconfigure encoder"));
return GST_FLOW_ERROR;
}
#if GST_MF_HAVE_D3D11
if (self->mf_allocator &&
!gst_mf_video_encoder_create_input_sample_d3d11 (self, frame, &sample)) {
GST_LOG_OBJECT (self, "Failed to create IMFSample for D3D11");
sample = nullptr;
}
#endif
if (!sample
&& !gst_mf_video_encoder_create_input_sample (self, frame, &sample)) {
GST_ERROR_OBJECT (self, "Failed to create IMFSample");
ret = GST_FLOW_ERROR;
goto done;
}
if (!gst_mf_video_encoder_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_encoder_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_encoder_finish (GstVideoEncoder * enc)
{
GstMFVideoEncoder *self = GST_MF_VIDEO_ENCODER (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_encoder_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_encoder_flush (GstVideoEncoder * enc)
{
GstMFVideoEncoder *self = GST_MF_VIDEO_ENCODER (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_encoder_propose_allocation (GstVideoEncoder * enc,
GstQuery * query)
{
#if GST_MF_HAVE_D3D11
GstMFVideoEncoder *self = GST_MF_VIDEO_ENCODER (enc);
GstVideoInfo info;
GstBufferPool *pool = nullptr;
GstCaps *caps;
guint size;
GstD3D11Device *device = self->other_d3d11_device;
gst_query_parse_allocation (query, &caps, nullptr);
if (caps == nullptr)
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);
}
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, nullptr);
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_encoder_sink_query (GstVideoEncoder * enc, GstQuery * query)
{
#if GST_MF_HAVE_D3D11
GstMFVideoEncoder *self = GST_MF_VIDEO_ENCODER (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_encoder_src_query (GstVideoEncoder * enc, GstQuery * query)
{
#if GST_MF_HAVE_D3D11
GstMFVideoEncoder *self = GST_MF_VIDEO_ENCODER (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, GstMFVideoEncoder * 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_encoder_finish_sample (self, sample);
GST_VIDEO_ENCODER_STREAM_UNLOCK (self);
return S_OK;
}
typedef struct
{
guint profile;
const gchar *profile_str;
} GstMFVideoEncoderProfileMap;
static void
gst_mf_video_encoder_enum_internal (GstMFTransform * transform, GUID & subtype,
GstObject * d3d11_device, GstMFVideoEncoderDeviceCaps * device_caps,
GstCaps ** sink_template, GstCaps ** src_template)
{
HRESULT hr;
MFT_REGISTER_TYPE_INFO *infos;
UINT32 info_size;
gint i;
GstCaps *src_caps = nullptr;
GstCaps *sink_caps = nullptr;
GstCaps *d3d11_caps = nullptr;
GValue *supported_formats = nullptr;
GValue *profiles = nullptr;
gboolean have_I420 = FALSE;
gboolean have_NV12 = FALSE;
gboolean have_P010 = FALSE;
#if GST_MF_HAVE_D3D11
gboolean d3d11_aware = FALSE;
#endif
gchar *device_name = nullptr;
IMFActivate *activate;
IMFTransform *encoder;
ICodecAPI *codec_api;
ComPtr < IMFMediaType > out_type;
GstMFVideoEncoderProfileMap h264_profile_map[] = {
{eAVEncH264VProfile_High, "high"},
{eAVEncH264VProfile_Main, "main"},
{eAVEncH264VProfile_Base, "baseline"},
{0, nullptr},
};
GstMFVideoEncoderProfileMap hevc_profile_map[] = {
{eAVEncH265VProfile_Main_420_8, "main"},
{eAVEncH265VProfile_Main_420_10, "main-10"},
{0, nullptr},
};
GstMFVideoEncoderProfileMap *profile_to_check = nullptr;
static const gchar *h264_caps_str =
"video/x-h264, stream-format=(string) byte-stream, alignment=(string) au";
static const gchar *hevc_caps_str =
"video/x-h265, stream-format=(string) byte-stream, alignment=(string) au";
static const gchar *vp9_caps_str = "video/x-vp9";
const gchar *codec_caps_str = nullptr;
/* 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, nullptr);
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 != nullptr);
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... */
GValue res_val = G_VALUE_INIT;
g_value_init (&res_val, GST_TYPE_INT_RANGE);
gst_value_set_int_range_step (&res_val, 64, 8192, 2);
gst_caps_set_value (sink_caps, "width", &res_val);
gst_caps_set_value (sink_caps, "height", &res_val);
gst_caps_set_value (src_caps, "width", &res_val);
gst_caps_set_value (src_caps, "height", &res_val);
g_value_unset (&res_val);
#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, nullptr);
GST_DEBUG_OBJECT (transform, "d3d11 aware %d", d3d11_aware);
}
if (d3d11_device && (have_NV12 || have_P010) && d3d11_aware) {
gint64 adapter_luid = 0;
GValue d3d11_formats = G_VALUE_INIT;
g_object_get (d3d11_device, "adapter-luid", &adapter_luid, nullptr);
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_new_single_static_str
(GST_CAPS_FEATURE_MEMORY_D3D11_MEMORY));
device_caps->d3d11_aware = TRUE;
device_caps->adapter_luid = adapter_luid;
}
#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_AVEncCommonMeanBitRate, mean_bitrate);
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_encoder_enum (guint enum_flags, GUID * subtype, guint device_index,
GstMFVideoEncoderDeviceCaps * 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 = nullptr;
*src_template = nullptr;
memset (device_caps, 0, sizeof (GstMFVideoEncoderDeviceCaps));
if (!IsEqualGUID (MFVideoFormat_H264, *subtype) &&
!IsEqualGUID (MFVideoFormat_HEVC, *subtype) &&
!IsEqualGUID (MFVideoFormat_VP90, *subtype)) {
GST_ERROR ("Unknown subtype GUID");
return nullptr;
}
if (d3d11_device) {
g_object_get (d3d11_device, "adapter-luid", &adapter_luid, nullptr);
if (!adapter_luid) {
GST_ERROR ("Couldn't get adapter LUID");
return nullptr;
}
}
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 nullptr;
gst_mf_video_encoder_enum_internal (transform, output_type.guidSubtype,
d3d11_device, device_caps, sink_template, src_template);
return transform;
}
static void
gst_mf_video_encoder_register_internal (GstPlugin * plugin, guint rank,
GUID * subtype, GTypeInfo * type_info,
const GstMFVideoEncoderDeviceCaps * 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;
GstMFVideoEncoderClassData *cdata;
gboolean is_default = TRUE;
gchar *device_name = nullptr;
const gchar *type_name_prefix = nullptr;
const gchar *feature_name_prefix = nullptr;
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, nullptr);
g_assert (device_name != nullptr);
cdata = g_new0 (GstMFVideoEncoderClassData, 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_ENCODER, type_name,
&local_type_info, (GTypeFlags) 0);
/* make lower rank than default device */
if (rank > 0 && !is_default)
rank--;
if (!is_default || !device_caps->d3d11_aware)
gst_element_type_set_skip_documentation (type);
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_encoder_register (GstPlugin * plugin, guint rank, GUID * subtype,
GTypeInfo * type_info, GList * d3d11_device)
{
GstMFTransform *transform = nullptr;
GstCaps *sink_template = nullptr;
GstCaps *src_template = nullptr;
guint enum_flags;
GstMFVideoEncoderDeviceCaps device_caps;
guint i;
/* register hardware encoders first */
enum_flags = (MFT_ENUM_FLAG_HARDWARE | MFT_ENUM_FLAG_ASYNCMFT |
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_encoder_enum (enum_flags, subtype, 0, &device_caps,
device, &sink_template, &src_template);
if (!transform)
continue;
/* Failed to open MFT */
if (!sink_template) {
gst_clear_object (&transform);
continue;
}
gst_mf_video_encoder_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_encoder_enum (enum_flags, subtype, i, &device_caps,
nullptr, &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_encoder_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_APPROVED_ONLY);
transform = gst_mf_video_encoder_enum (enum_flags, subtype, 0, &device_caps,
nullptr, &sink_template, &src_template);
if (!transform)
goto done;
if (!sink_template)
goto done;
gst_mf_video_encoder_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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