qsv: Add JPEG encoder

Note that YUY2 is not supported yet, since the format support is not
implemented now.

Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/2142>

subprojects/gst-plugins-bad/sys/qsv/gstqsvallocator.cpp

@@ -390,8 +390,11 @@ gst_qsv_allocator_lock (mfxHDL pthis, mfxMemId mid, mfxFrameData * ptr)
   }
 
   if (frame->map_count == 0) {
+    guint map_flags = (guint) frame->map_flags;
+    map_flags &= ~((guint) GST_MAP_QSV);
+
     gst_video_frame_map (&frame->frame, &frame->info, frame->buffer,
-        frame->map_flags);
+        (GstMapFlags) map_flags);
   }
 
   frame->map_count++;
@@ -418,6 +421,20 @@ gst_qsv_allocator_lock (mfxHDL pthis, mfxMemId mid, mfxFrameData * ptr)
       ptr->PitchLow = (mfxU16) (stride % (1 << 16));
       ptr->Y410 = (mfxY410 *) GST_VIDEO_FRAME_PLANE_DATA (&frame->frame, 0);
       break;
+    case GST_VIDEO_FORMAT_BGRA:
+      ptr->Pitch = (mfxU16) stride;
+      ptr->B = (mfxU8 *) GST_VIDEO_FRAME_PLANE_DATA (&frame->frame, 0);
+      ptr->G = ptr->B + 1;
+      ptr->R = ptr->B + 2;
+      ptr->A = ptr->B + 3;
+      break;
+    case GST_VIDEO_FORMAT_RGBA:
+      ptr->Pitch = (mfxU16) stride;
+      ptr->R = (mfxU8 *) GST_VIDEO_FRAME_PLANE_DATA (&frame->frame, 0);
+      ptr->G = ptr->R + 1;
+      ptr->B = ptr->R + 2;
+      ptr->A = ptr->R + 3;
+      break;
     default:
       break;
   }
@@ -448,6 +465,13 @@ gst_qsv_allocator_unlock (mfxHDL pthis, mfxMemId mid, mfxFrameData * ptr)
 
   g_mutex_unlock (&frame->lock);
 
+  /* SDK will not re-lock unless we clear data pointer here. It happens
+   * on Linux with BGRA JPEG encoding */
+  ptr->R = nullptr;
+  ptr->G = nullptr;
+  ptr->B = nullptr;
+  ptr->A = nullptr;
+
   return MFX_ERR_NONE;
 }
 

subprojects/gst-plugins-bad/sys/qsv/gstqsvallocator_d3d11.cpp

@@ -105,6 +105,12 @@ gst_qsv_d3d11_allocator_alloc (GstQsvAllocator * allocator,
     case MFX_FOURCC_Y410:
       dxgi_format = DXGI_FORMAT_Y410;
       break;
+    case MFX_FOURCC_RGB4:
+      dxgi_format = DXGI_FORMAT_B8G8R8A8_UNORM;
+      break;
+    case MFX_FOURCC_BGR4:
+      dxgi_format = DXGI_FORMAT_R8G8B8A8_UNORM;
+      break;
     default:
       /* TODO: add more formats */
       break;

subprojects/gst-plugins-bad/sys/qsv/gstqsvencoder.cpp

@@ -1041,8 +1041,26 @@ gst_qsv_encoder_init_encode_session (GstQsvEncoder * self)
   priv->next_surface_index = 0;
 
   g_array_set_size (priv->task_pool, param.AsyncDepth);
+  if (klass->codec_id == MFX_CODEC_JPEG) {
+    gdouble factor = 4.0;
+
+    /* jpeg zero returns buffer size */
+    switch (GST_VIDEO_INFO_FORMAT (info)) {
+      case GST_VIDEO_FORMAT_NV12:
+        factor = 1.5;
+        break;
+      case GST_VIDEO_FORMAT_YUY2:
+        factor = 2.0;
+        break;
+      default:
+        break;
+    }
+    bitstream_size = (guint)
+        (factor * GST_VIDEO_INFO_WIDTH (info) * GST_VIDEO_INFO_HEIGHT (info));
+  } else {
     bitstream_size =
         (guint) param.mfx.BufferSizeInKB * param.mfx.BRCParamMultiplier * 1024;
+  }
 
   for (guint i = 0; i < priv->task_pool->len; i++) {
     GstQsvEncoderTask *task = &g_array_index (priv->task_pool,

subprojects/gst-plugins-bad/sys/qsv/gstqsvjpegenc.cpp

@@ -0,0 +1,531 @@
+/* GStreamer
+ * Copyright (C) 2022 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 "gstqsvjpegenc.h"
+#include <vector>
+#include <string>
+#include <set>
+#include <string.h>
+
+#ifdef G_OS_WIN32
+#include <gst/d3d11/gstd3d11.h>
+#else
+#include <gst/va/gstva.h>
+#endif
+
+GST_DEBUG_CATEGORY_EXTERN (gst_qsv_jpeg_enc_debug);
+#define GST_CAT_DEFAULT gst_qsv_jpeg_enc_debug
+
+enum
+{
+  PROP_0,
+  PROP_ADAPTER_LUID,
+  PROP_DEVICE_PATH,
+  PROP_QUALITY,
+};
+
+#define DEFAULT_JPEG_QUALITY 85
+
+typedef struct _GstQsvJpegEncClassData
+{
+  GstCaps *sink_caps;
+  GstCaps *src_caps;
+  guint impl_index;
+  gint64 adapter_luid;
+  gchar *display_path;
+  gboolean interlaved;
+} GstQsvJpegEncClassData;
+
+typedef struct _GstQsvJpegEnc
+{
+  GstQsvEncoder parent;
+
+  GMutex prop_lock;
+  /* protected by prop_lock */
+  gboolean property_updated;
+
+  /* properties */
+  guint quality;
+} GstQsvJpegEnc;
+
+typedef struct _GstQsvJpegEncClass
+{
+  GstQsvEncoderClass parent_class;
+  gboolean interlaved;
+} GstQsvJpegEncClass;
+
+static GstElementClass *parent_class = nullptr;
+
+#define GST_QSV_JPEG_ENC(object) ((GstQsvJpegEnc *) (object))
+#define GST_QSV_JPEG_ENC_GET_CLASS(object) \
+    (G_TYPE_INSTANCE_GET_CLASS ((object),G_TYPE_FROM_INSTANCE (object),GstQsvJpegEncClass))
+
+static void gst_qsv_jpeg_enc_finalize (GObject * object);
+static void gst_qsv_jpeg_enc_set_property (GObject * object, guint prop_id,
+    const GValue * value, GParamSpec * pspec);
+static void gst_qsv_jpeg_enc_get_property (GObject * object, guint prop_id,
+    GValue * value, GParamSpec * pspec);
+
+static gboolean gst_qsv_jpeg_enc_set_format (GstQsvEncoder * encoder,
+    GstVideoCodecState * state, mfxVideoParam * param,
+    GPtrArray * extra_params);
+static gboolean gst_qsv_jpeg_enc_set_output_state (GstQsvEncoder * encoder,
+    GstVideoCodecState * state, mfxSession session);
+static GstQsvEncoderReconfigure
+gst_qsv_jpeg_enc_check_reconfigure (GstQsvEncoder * encoder, mfxSession session,
+    mfxVideoParam * param, GPtrArray * extra_params);
+
+static void
+gst_qsv_jpeg_enc_class_init (GstQsvJpegEncClass * klass, gpointer data)
+{
+  GObjectClass *object_class = G_OBJECT_CLASS (klass);
+  GstElementClass *element_class = GST_ELEMENT_CLASS (klass);
+  GstQsvEncoderClass *qsvenc_class = GST_QSV_ENCODER_CLASS (klass);
+  GstQsvJpegEncClassData *cdata = (GstQsvJpegEncClassData *) data;
+
+  qsvenc_class->codec_id = MFX_CODEC_JPEG;
+  qsvenc_class->impl_index = cdata->impl_index;
+  qsvenc_class->adapter_luid = cdata->adapter_luid;
+  qsvenc_class->display_path = cdata->display_path;
+
+  object_class->finalize = gst_qsv_jpeg_enc_finalize;
+  object_class->set_property = gst_qsv_jpeg_enc_set_property;
+  object_class->get_property = gst_qsv_jpeg_enc_get_property;
+
+#ifdef G_OS_WIN32
+  g_object_class_install_property (object_class, PROP_ADAPTER_LUID,
+      g_param_spec_int64 ("adapter-luid", "Adapter LUID",
+          "DXGI Adapter LUID (Locally Unique Identifier) of created device",
+          G_MININT64, G_MAXINT64, qsvenc_class->adapter_luid,
+          (GParamFlags) (GST_PARAM_CONDITIONALLY_AVAILABLE | G_PARAM_READABLE |
+              G_PARAM_STATIC_STRINGS)));
+#else
+  g_object_class_install_property (object_class, PROP_DEVICE_PATH,
+      g_param_spec_string ("device-path", "Device Path",
+          "DRM device path", cdata->display_path,
+          (GParamFlags) (GST_PARAM_CONDITIONALLY_AVAILABLE |
+              G_PARAM_READABLE | G_PARAM_STATIC_STRINGS)));
+#endif
+
+  g_object_class_install_property (object_class, PROP_QUALITY,
+      g_param_spec_uint ("quality", "Quality",
+          "Encoding quality, 100 for best quality",
+          1, 100, DEFAULT_JPEG_QUALITY, (GParamFlags)
+          (G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS)));
+
+  parent_class = (GstElementClass *) g_type_class_peek_parent (klass);
+  gst_element_class_set_static_metadata (element_class,
+      "Intel Quick Sync Video JPEG Encoder",
+      "Codec/Encoder/Video/Hardware",
+      "Intel Quick Sync Video JPEG Encoder",
+      "Seungha Yang <seungha@centricular.com>");
+
+  gst_element_class_add_pad_template (element_class,
+      gst_pad_template_new ("sink", GST_PAD_SINK, GST_PAD_ALWAYS,
+          cdata->sink_caps));
+  gst_element_class_add_pad_template (element_class,
+      gst_pad_template_new ("src", GST_PAD_SRC, GST_PAD_ALWAYS,
+          cdata->src_caps));
+
+  qsvenc_class->set_format = GST_DEBUG_FUNCPTR (gst_qsv_jpeg_enc_set_format);
+  qsvenc_class->set_output_state =
+      GST_DEBUG_FUNCPTR (gst_qsv_jpeg_enc_set_output_state);
+  qsvenc_class->check_reconfigure =
+      GST_DEBUG_FUNCPTR (gst_qsv_jpeg_enc_check_reconfigure);
+
+  klass->interlaved = cdata->interlaved;
+
+  gst_caps_unref (cdata->sink_caps);
+  gst_caps_unref (cdata->src_caps);
+  g_free (cdata);
+}
+
+static void
+gst_qsv_jpeg_enc_init (GstQsvJpegEnc * self)
+{
+  self->quality = DEFAULT_JPEG_QUALITY;
+
+  g_mutex_init (&self->prop_lock);
+}
+
+static void
+gst_qsv_jpeg_enc_finalize (GObject * object)
+{
+  GstQsvJpegEnc *self = GST_QSV_JPEG_ENC (object);
+
+  g_mutex_clear (&self->prop_lock);
+
+  G_OBJECT_CLASS (parent_class)->finalize (object);
+}
+
+static void
+gst_qsv_jpeg_enc_check_update_uint (GstQsvJpegEnc * self, guint * old_val,
+    guint new_val)
+{
+  if (*old_val == new_val)
+    return;
+
+  g_mutex_lock (&self->prop_lock);
+  *old_val = new_val;
+  self->property_updated = TRUE;
+  g_mutex_unlock (&self->prop_lock);
+}
+
+static void
+gst_qsv_jpeg_enc_set_property (GObject * object, guint prop_id,
+    const GValue * value, GParamSpec * pspec)
+{
+  GstQsvJpegEnc *self = GST_QSV_JPEG_ENC (object);
+
+  switch (prop_id) {
+    case PROP_QUALITY:
+      gst_qsv_jpeg_enc_check_update_uint (self, &self->quality,
+          g_value_get_uint (value));
+      break;
+    default:
+      G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
+      break;
+  }
+}
+
+static void
+gst_qsv_jpeg_enc_get_property (GObject * object, guint prop_id, GValue * value,
+    GParamSpec * pspec)
+{
+  GstQsvJpegEnc *self = GST_QSV_JPEG_ENC (object);
+  GstQsvEncoderClass *klass = GST_QSV_ENCODER_GET_CLASS (self);
+
+  switch (prop_id) {
+    case PROP_ADAPTER_LUID:
+      g_value_set_int64 (value, klass->adapter_luid);
+      break;
+    case PROP_DEVICE_PATH:
+      g_value_set_string (value, klass->display_path);
+      break;
+    case PROP_QUALITY:
+      g_value_set_uint (value, self->quality);
+      break;
+    default:
+      G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
+      break;
+  }
+}
+
+static gboolean
+gst_qsv_jpeg_enc_set_format (GstQsvEncoder * encoder,
+    GstVideoCodecState * state, mfxVideoParam * param, GPtrArray * extra_params)
+{
+  GstQsvJpegEnc *self = GST_QSV_JPEG_ENC (encoder);
+  GstQsvJpegEncClass *klass = GST_QSV_JPEG_ENC_GET_CLASS (self);
+  GstVideoInfo *info = &state->info;
+  mfxFrameInfo *frame_info;
+
+  frame_info = &param->mfx.FrameInfo;
+
+  frame_info->Width = frame_info->CropW = info->width;
+  frame_info->Height = frame_info->CropH = info->height;
+
+  frame_info->PicStruct = MFX_PICSTRUCT_PROGRESSIVE;
+
+  if (GST_VIDEO_INFO_FPS_N (info) > 0 && GST_VIDEO_INFO_FPS_D (info) > 0) {
+    frame_info->FrameRateExtN = GST_VIDEO_INFO_FPS_N (info);
+    frame_info->FrameRateExtD = GST_VIDEO_INFO_FPS_D (info);
+  } else {
+    /* HACK: Same as x264enc */
+    frame_info->FrameRateExtN = 25;
+    frame_info->FrameRateExtD = 1;
+  }
+
+  frame_info->AspectRatioW = GST_VIDEO_INFO_PAR_N (info);
+  frame_info->AspectRatioH = GST_VIDEO_INFO_PAR_D (info);
+
+  switch (GST_VIDEO_INFO_FORMAT (info)) {
+    case GST_VIDEO_FORMAT_NV12:
+      frame_info->ChromaFormat = MFX_CHROMAFORMAT_YUV420;
+      frame_info->FourCC = MFX_FOURCC_NV12;
+      frame_info->BitDepthLuma = 8;
+      frame_info->BitDepthChroma = 8;
+      break;
+    case GST_VIDEO_FORMAT_BGRA:
+      frame_info->ChromaFormat = MFX_CHROMAFORMAT_YUV444;
+      frame_info->FourCC = MFX_FOURCC_RGB4;
+      break;
+    default:
+      GST_ERROR_OBJECT (self, "Unexpected format %s",
+          gst_video_format_to_string (GST_VIDEO_INFO_FORMAT (info)));
+      return FALSE;
+  }
+
+  g_mutex_lock (&self->prop_lock);
+  param->mfx.CodecId = MFX_CODEC_JPEG;
+  param->mfx.CodecProfile = MFX_PROFILE_JPEG_BASELINE;
+  param->mfx.Quality = self->quality;
+  if (klass->interlaved)
+    param->mfx.Interleaved = 1;
+  else
+    param->mfx.Interleaved = 0;
+  param->mfx.RestartInterval = 0;
+  param->ExtParam = (mfxExtBuffer **) extra_params->pdata;
+  param->NumExtParam = extra_params->len;
+
+  self->property_updated = FALSE;
+  g_mutex_unlock (&self->prop_lock);
+
+  return TRUE;
+}
+
+static gboolean
+gst_qsv_jpeg_enc_set_output_state (GstQsvEncoder * encoder,
+    GstVideoCodecState * state, mfxSession session)
+{
+  GstCaps *caps;
+  GstTagList *tags;
+  GstVideoCodecState *out_state;
+
+  caps = gst_caps_from_string ("image/jpeg");
+  out_state = gst_video_encoder_set_output_state (GST_VIDEO_ENCODER (encoder),
+      caps, state);
+  gst_video_codec_state_unref (out_state);
+
+  tags = gst_tag_list_new_empty ();
+  gst_tag_list_add (tags, GST_TAG_MERGE_REPLACE, GST_TAG_ENCODER, "qsvjpegenc",
+      nullptr);
+
+  gst_video_encoder_merge_tags (GST_VIDEO_ENCODER (encoder),
+      tags, GST_TAG_MERGE_REPLACE);
+  gst_tag_list_unref (tags);
+
+  return TRUE;
+}
+
+static GstQsvEncoderReconfigure
+gst_qsv_jpeg_enc_check_reconfigure (GstQsvEncoder * encoder, mfxSession session,
+    mfxVideoParam * param, GPtrArray * extra_params)
+{
+  GstQsvJpegEnc *self = GST_QSV_JPEG_ENC (encoder);
+  GstQsvEncoderReconfigure ret = GST_QSV_ENCODER_RECONFIGURE_NONE;
+
+  g_mutex_lock (&self->prop_lock);
+  if (self->property_updated)
+    ret = GST_QSV_ENCODER_RECONFIGURE_FULL;
+
+  self->property_updated = FALSE;
+  g_mutex_unlock (&self->prop_lock);
+
+  return ret;
+}
+
+typedef struct
+{
+  guint width;
+  guint height;
+} Resolution;
+
+void
+gst_qsv_jpeg_enc_register (GstPlugin * plugin, guint rank, guint impl_index,
+    GstObject * device, mfxSession session)
+{
+  mfxVideoParam param;
+  mfxInfoMFX *mfx;
+  static const Resolution resolutions_to_check[] = {
+    {1280, 720}, {1920, 1088}, {2560, 1440}, {3840, 2160}, {4096, 2160},
+    {7680, 4320}, {8192, 4320}
+  };
+  std::vector < std::string > supported_formats;
+  Resolution max_resolution;
+  mfxStatus status;
+  gboolean interlaved = TRUE;
+
+  memset (&param, 0, sizeof (mfxVideoParam));
+  memset (&max_resolution, 0, sizeof (Resolution));
+
+  param.AsyncDepth = 4;
+  param.IOPattern = MFX_IOPATTERN_IN_VIDEO_MEMORY;
+
+  mfx = &param.mfx;
+  mfx->LowPower = MFX_CODINGOPTION_UNKNOWN;
+  mfx->CodecId = MFX_CODEC_JPEG;
+  mfx->CodecProfile = MFX_PROFILE_JPEG_BASELINE;
+  mfx->Quality = DEFAULT_JPEG_QUALITY;
+  mfx->Interleaved = 1;
+  mfx->RestartInterval = 0;
+
+  mfx->FrameInfo.Width = mfx->FrameInfo.CropW = GST_ROUND_UP_16 (320);
+  mfx->FrameInfo.Height = mfx->FrameInfo.CropH = GST_ROUND_UP_16 (240);
+
+  mfx->FrameInfo.ChromaFormat = MFX_CHROMAFORMAT_YUV420;
+  mfx->FrameInfo.FourCC = MFX_FOURCC_NV12;
+  mfx->FrameInfo.FrameRateExtN = 30;
+  mfx->FrameInfo.FrameRateExtD = 1;
+  mfx->FrameInfo.AspectRatioW = 1;
+  mfx->FrameInfo.AspectRatioH = 1;
+  mfx->FrameInfo.PicStruct = MFX_PICSTRUCT_PROGRESSIVE;
+
+  status = MFXVideoENCODE_Query (session, &param, &param);
+  if (status == MFX_WRN_PARTIAL_ACCELERATION) {
+    mfx->Interleaved = 0;
+    interlaved = FALSE;
+
+    status = MFXVideoENCODE_Query (session, &param, &param);
+  }
+
+  if (status != MFX_ERR_NONE)
+    return;
+
+  supported_formats.push_back ("NV12");
+
+  mfx->FrameInfo.ChromaFormat = MFX_CHROMAFORMAT_YUV444;
+  mfx->FrameInfo.FourCC = MFX_FOURCC_RGB4;
+  status = MFXVideoENCODE_Query (session, &param, &param);
+
+  /* TODO: Add YUY2 support, d3d11 doesn't support the format yet */
+  if (status == MFX_ERR_NONE)
+    supported_formats.push_back ("BGRA");
+
+  mfx->FrameInfo.ChromaFormat = MFX_CHROMAFORMAT_YUV420;
+  mfx->FrameInfo.FourCC = MFX_FOURCC_NV12;
+
+  /* Check max-resolution */
+  for (guint i = 0; i < G_N_ELEMENTS (resolutions_to_check); i++) {
+    mfx->FrameInfo.Width = mfx->FrameInfo.CropW = resolutions_to_check[i].width;
+    mfx->FrameInfo.Height = mfx->FrameInfo.CropH =
+        resolutions_to_check[i].height;
+
+    if (MFXVideoENCODE_Query (session, &param, &param) != MFX_ERR_NONE)
+      break;
+
+    max_resolution.width = resolutions_to_check[i].width;
+    max_resolution.height = resolutions_to_check[i].height;
+  }
+
+  GST_INFO ("Maximum supported resolution: %dx%d",
+      max_resolution.width, max_resolution.height);
+
+  /* To cover both landscape and portrait,
+   * select max value (width in this case) */
+  guint resolution = MAX (max_resolution.width, max_resolution.height);
+  std::string sink_caps_str = "video/x-raw";
+
+  sink_caps_str += ", width=(int) [ 16, " + std::to_string (resolution) + " ]";
+  sink_caps_str += ", height=(int) [ 16, " + std::to_string (resolution) + " ]";
+
+  /* *INDENT-OFF* */
+  if (supported_formats.size () > 1) {
+    sink_caps_str += ", format=(string) { ";
+    bool first = true;
+    for (const auto &iter: supported_formats) {
+      if (!first) {
+        sink_caps_str += ", ";
+      }
+
+      sink_caps_str += iter;
+      first = false;
+    }
+    sink_caps_str += " }";
+  } else {
+    sink_caps_str += ", format=(string) " + supported_formats[0];
+  }
+  /* *INDENT-ON* */
+
+  GstCaps *sink_caps = gst_caps_from_string (sink_caps_str.c_str ());
+
+#ifdef G_OS_WIN32
+  GstCaps *d3d11_caps = gst_caps_copy (sink_caps);
+  GstCapsFeatures *caps_features =
+      gst_caps_features_new (GST_CAPS_FEATURE_MEMORY_D3D11_MEMORY, nullptr);
+  gst_caps_set_features_simple (d3d11_caps, caps_features);
+  gst_caps_append (d3d11_caps, sink_caps);
+  sink_caps = d3d11_caps;
+#else
+  GstCaps *va_caps = gst_caps_copy (sink_caps);
+  GstCapsFeatures *caps_features =
+      gst_caps_features_new (GST_CAPS_FEATURE_MEMORY_VA, nullptr);
+  gst_caps_set_features_simple (va_caps, caps_features);
+  gst_caps_append (va_caps, sink_caps);
+  sink_caps = va_caps;
+#endif
+
+  std::string src_caps_str = "image/jpeg";
+  src_caps_str += ", width=(int) [ 16, " + std::to_string (resolution) + " ]";
+  src_caps_str += ", height=(int) [ 16, " + std::to_string (resolution) + " ]";
+
+  GstCaps *src_caps = gst_caps_from_string (src_caps_str.c_str ());
+
+  GST_MINI_OBJECT_FLAG_SET (sink_caps, GST_MINI_OBJECT_FLAG_MAY_BE_LEAKED);
+  GST_MINI_OBJECT_FLAG_SET (src_caps, GST_MINI_OBJECT_FLAG_MAY_BE_LEAKED);
+
+  GstQsvJpegEncClassData *cdata = g_new0 (GstQsvJpegEncClassData, 1);
+  cdata->sink_caps = sink_caps;
+  cdata->src_caps = src_caps;
+  cdata->impl_index = impl_index;
+  cdata->interlaved = interlaved;
+
+#ifdef G_OS_WIN32
+  gint64 device_luid;
+  g_object_get (device, "adapter-luid", &device_luid, nullptr);
+  cdata->adapter_luid = device_luid;
+#else
+  gchar *display_path;
+  g_object_get (device, "path", &display_path, nullptr);
+  cdata->display_path = display_path;
+#endif
+
+  GType type;
+  gchar *type_name;
+  gchar *feature_name;
+  GTypeInfo type_info = {
+    sizeof (GstQsvJpegEncClass),
+    nullptr,
+    nullptr,
+    (GClassInitFunc) gst_qsv_jpeg_enc_class_init,
+    nullptr,
+    cdata,
+    sizeof (GstQsvJpegEnc),
+    0,
+    (GInstanceInitFunc) gst_qsv_jpeg_enc_init,
+  };
+
+  type_name = g_strdup ("GstQsvJpegEnc");
+  feature_name = g_strdup ("qsvjpegenc");
+
+  gint index = 0;
+  while (g_type_from_name (type_name)) {
+    index++;
+    g_free (type_name);
+    g_free (feature_name);
+    type_name = g_strdup_printf ("GstQsvJpegDevice%dEnc", index);
+    feature_name = g_strdup_printf ("qsvjpegdevice%denc", index);
+  }
+
+  type = g_type_register_static (GST_TYPE_QSV_ENCODER, type_name, &type_info,
+      (GTypeFlags) 0);
+
+  if (rank > 0 && index != 0)
+    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);
+}

subprojects/gst-plugins-bad/sys/qsv/gstqsvjpegenc.h

@@ -0,0 +1,34 @@
+/* GStreamer
+ * Copyright (C) 2022 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.
+ */
+
+#pragma once
+
+#include <gst/gst.h>
+#include <gst/video/video.h>
+#include "gstqsvencoder.h"
+
+G_BEGIN_DECLS
+
+void gst_qsv_jpeg_enc_register (GstPlugin * plugin,
+                                guint rank,
+                                guint impl_index,
+                                GstObject * device,
+                                mfxSession session);
+
+G_END_DECLS

subprojects/gst-plugins-bad/sys/qsv/meson.build

@@ -5,6 +5,7 @@ qsv_sources = [
   'gstqsvh264dec.cpp',
   'gstqsvh264enc.cpp',
   'gstqsvh265enc.cpp',
+  'gstqsvjpegenc.cpp',
   'gstqsvutils.cpp',
   'gstqsvvp9enc.cpp',
   'plugin.cpp',

subprojects/gst-plugins-bad/sys/qsv/plugin.cpp

@@ -27,6 +27,7 @@
 #include "gstqsvh264dec.h"
 #include "gstqsvh264enc.h"
 #include "gstqsvh265enc.h"
+#include "gstqsvjpegenc.h"
 #include "gstqsvvp9enc.h"
 #include <string.h>
 
@@ -47,6 +48,7 @@ GST_DEBUG_CATEGORY (gst_qsv_encoder_debug);
 GST_DEBUG_CATEGORY (gst_qsv_h264_dec_debug);
 GST_DEBUG_CATEGORY (gst_qsv_h264_enc_debug);
 GST_DEBUG_CATEGORY (gst_qsv_h265_enc_debug);
+GST_DEBUG_CATEGORY (gst_qsv_jpeg_enc_debug);
 GST_DEBUG_CATEGORY (gst_qsv_vp9_enc_debug);
 
 #define GST_CAT_DEFAULT gst_qsv_debug
@@ -228,6 +230,8 @@ plugin_init (GstPlugin * plugin)
       "qsvh264enc", 0, "qsvh264enc");
   GST_DEBUG_CATEGORY_INIT (gst_qsv_h265_enc_debug,
       "qsvh265enc", 0, "qsvh265enc");
+  GST_DEBUG_CATEGORY_INIT (gst_qsv_jpeg_enc_debug,
+      "qsvjpegenc", 0, "qsvjpegenc");
   GST_DEBUG_CATEGORY_INIT (gst_qsv_vp9_enc_debug, "qsvvp9enc", 0, "qsvvp9enc");
 
   do {
@@ -257,6 +261,7 @@ plugin_init (GstPlugin * plugin)
 
     gst_qsv_h264_enc_register (plugin, GST_RANK_NONE, i, device, session);
     gst_qsv_h265_enc_register (plugin, GST_RANK_NONE, i, device, session);
+    gst_qsv_jpeg_enc_register (plugin, GST_RANK_NONE, i, device, session);
     gst_qsv_vp9_enc_register (plugin, GST_RANK_NONE, i, device, session);
 
   next: