gstreamer/sys/mediafoundation/gstmfvideoenc.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 "gstmfvideoenc.h"
#include <wrl.h>
using namespace Microsoft::WRL;
GST_DEBUG_CATEGORY (gst_mf_video_enc_debug);
#define GST_CAT_DEFAULT gst_mf_video_enc_debug
#define gst_mf_video_enc_parent_class parent_class
G_DEFINE_ABSTRACT_TYPE_WITH_CODE (GstMFVideoEnc, gst_mf_video_enc,
GST_TYPE_VIDEO_ENCODER,
GST_DEBUG_CATEGORY_INIT (gst_mf_video_enc_debug, "mfvideoenc", 0,
"mfvideoenc"));
static gboolean gst_mf_video_enc_open (GstVideoEncoder * enc);
static gboolean gst_mf_video_enc_close (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 void
gst_mf_video_enc_class_init (GstMFVideoEncClass * klass)
{
GstVideoEncoderClass *videoenc_class = GST_VIDEO_ENCODER_CLASS (klass);
videoenc_class->open = GST_DEBUG_FUNCPTR (gst_mf_video_enc_open);
videoenc_class->close = GST_DEBUG_FUNCPTR (gst_mf_video_enc_close);
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);
}
static void
gst_mf_video_enc_init (GstMFVideoEnc * self)
{
}
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);
GstMFTransformEnumParams enum_params = { 0, };
MFT_REGISTER_TYPE_INFO output_type;
gboolean ret;
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;
GST_DEBUG_OBJECT (self, "Create MFT with enum flags 0x%x, device index %d",
klass->enum_flags, klass->device_index);
self->transform = gst_mf_transform_new (&enum_params);
ret = !!self->transform;
if (!ret)
GST_ERROR_OBJECT (self, "Cannot create MFT object");
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;
}
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);
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;
}
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, 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) {
fps_n = 0;
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;
}
return TRUE;
}
typedef struct
{
GstClockTime mf_pts;
} GstMFVideoEncFrameData;
static gboolean
gst_mf_video_enc_process_input (GstMFVideoEnc * self,
GstVideoCodecFrame * frame)
{
GstMFVideoEncClass *klass = GST_MF_VIDEO_ENC_GET_CLASS (self);
HRESULT hr;
ComPtr<IMFSample> sample;
ComPtr<IMFMediaBuffer> media_buffer;
GstVideoInfo *info = &self->input_state->info;
gint i, j;
BYTE *data;
GstVideoFrame vframe;
gboolean res = FALSE;
gboolean unset_force_keyframe = FALSE;
GstMFVideoEncFrameData *frame_data = NULL;
if (!gst_video_frame_map (&vframe, info, frame->input_buffer, GST_MAP_READ)) {
GST_ERROR_OBJECT (self, "Couldn't map input frame");
return FALSE;
}
hr = MFCreateSample (sample.GetAddressOf ());
if (!gst_mf_result (hr))
goto done;
hr = MFCreateMemoryBuffer (GST_VIDEO_INFO_SIZE (info),
media_buffer.GetAddressOf ());
if (!gst_mf_result (hr))
goto done;
hr = media_buffer->Lock (&data, NULL, NULL);
if (!gst_mf_result (hr))
goto done;
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 done;
hr = sample->AddBuffer (media_buffer.Get ());
if (!gst_mf_result (hr))
goto done;
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))
goto done;
hr = sample->SetSampleDuration (
GST_CLOCK_TIME_IS_VALID (frame->duration) ? frame->duration / 100 : 0);
if (!gst_mf_result (hr))
goto done;
if (GST_VIDEO_CODEC_FRAME_IS_FORCE_KEYFRAME (frame)) {
if (klass->can_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");
}
}
if (!gst_mf_transform_process_input (self->transform, sample.Get ())) {
GST_ERROR_OBJECT (self, "Failed to process input");
goto done;
}
if (unset_force_keyframe) {
gst_mf_transform_set_codec_api_uint32 (self->transform,
&CODECAPI_AVEncVideoForceKeyFrame, FALSE);
}
res = TRUE;
done:
gst_video_frame_unmap (&vframe);
return res;
}
static GstVideoCodecFrame *
gst_mf_video_enc_find_output_frame (GstMFVideoEnc * self, UINT64 mf_dts,
UINT64 mf_pts)
{
GList *l, *walk = gst_video_encoder_get_frames (GST_VIDEO_ENCODER (self));
GstVideoCodecFrame *ret = NULL;
for (l = walk; l; l = l->next) {
GstVideoCodecFrame *frame = (GstVideoCodecFrame *) l->data;
GstMFVideoEncFrameData *data = (GstMFVideoEncFrameData *)
gst_video_codec_frame_get_user_data (frame);
if (!data)
continue;
if (mf_dts == data->mf_pts) {
ret = frame;
break;
}
}
/* find target with pts */
if (!ret) {
for (l = walk; l; l = l->next) {
GstVideoCodecFrame *frame = (GstVideoCodecFrame *) l->data;
GstMFVideoEncFrameData *data = (GstMFVideoEncFrameData *)
gst_video_codec_frame_get_user_data (frame);
if (!data)
continue;
if (mf_pts == data->mf_pts) {
ret = frame;
break;
}
}
}
if (ret) {
gst_video_codec_frame_ref (ret);
} else {
/* just return the oldest one */
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 GstFlowReturn
gst_mf_video_enc_process_output (GstMFVideoEnc * self)
{
HRESULT hr;
BYTE *data;
ComPtr<IMFMediaBuffer> media_buffer;
ComPtr<IMFSample> sample;
GstBuffer *buffer;
GstFlowReturn res = GST_FLOW_ERROR;
GstVideoCodecFrame *frame;
LONGLONG sample_timestamp;
LONGLONG sample_duration;
UINT32 keyframe = FALSE;
UINT64 mf_dts = GST_CLOCK_TIME_NONE;
DWORD buffer_len;
res = gst_mf_transform_get_output (self->transform, sample.GetAddressOf ());
if (res != GST_FLOW_OK)
return res;
hr = sample->GetBufferByIndex (0, media_buffer.GetAddressOf ());
if (!gst_mf_result (hr))
return GST_FLOW_ERROR;
hr = media_buffer->Lock (&data, NULL, &buffer_len);
if (!gst_mf_result (hr))
return GST_FLOW_ERROR;
buffer = gst_buffer_new_allocate (NULL, buffer_len, NULL);
gst_buffer_fill (buffer, 0, data, buffer_len);
media_buffer->Unlock ();
sample->GetSampleTime (&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;
frame = gst_mf_video_enc_find_output_frame (self,
mf_dts, (UINT64) sample_timestamp);
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);
GST_BUFFER_FLAG_UNSET (buffer, GST_BUFFER_FLAG_DELTA_UNIT);
} else {
GST_BUFFER_FLAG_SET (buffer, GST_BUFFER_FLAG_DELTA_UNIT);
}
frame->pts = sample_timestamp * 100;
frame->dts = mf_dts * 100;
frame->duration = sample_duration * 100;
frame->output_buffer = buffer;
res = gst_video_encoder_finish_frame (GST_VIDEO_ENCODER (self), frame);
} else {
GST_BUFFER_DTS (buffer) = mf_dts * 100;
GST_BUFFER_PTS (buffer) = sample_timestamp * 100;
GST_BUFFER_DURATION (buffer) = sample_duration * 100;
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);
}
res = gst_pad_push (GST_VIDEO_ENCODER_SRC_PAD (self), buffer);
}
return res;
}
static GstFlowReturn
gst_mf_video_enc_handle_frame (GstVideoEncoder * enc,
GstVideoCodecFrame * frame)
{
GstMFVideoEnc *self = GST_MF_VIDEO_ENC (enc);
GstFlowReturn ret = GST_FLOW_OK;
if (!gst_mf_video_enc_process_input (self, frame)) {
GST_ERROR_OBJECT (self, "Failed to process input");
ret = GST_FLOW_ERROR;
goto done;
}
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;
gst_mf_transform_drain (self->transform);
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)
return TRUE;
gst_mf_transform_flush (self->transform);
return TRUE;
}