v4l2videoenc: Add HEVC support

Add HEVC encoder support.

https://bugzilla.gnome.org/show_bug.cgi?id=797141

sys/v4l2/Makefile.am

@@ -18,6 +18,7 @@ libgstvideo4linux2_la_SOURCES = gstv4l2.c \
 				gstv4l2fwhtenc.c \
 				gstv4l2h263enc.c \
 				gstv4l2h264enc.c \
+				gstv4l2h265enc.c \
 				gstv4l2jpegenc.c \
 				gstv4l2mpeg4enc.c \
 				gstv4l2vidorient.c \
@@ -66,6 +67,7 @@ noinst_HEADERS = \
 	gstv4l2fwhtenc.h \
 	gstv4l2h263enc.h \
 	gstv4l2h264enc.h \
+	gstv4l2h265enc.h \
 	gstv4l2jpegenc.h \
 	gstv4l2mpeg4enc.h \
 	gstv4l2vidorient.h \

sys/v4l2/gstv4l2.c

@@ -50,6 +50,7 @@
 #include "gstv4l2fwhtenc.h"
 #include "gstv4l2h263enc.h"
 #include "gstv4l2h264enc.h"
+#include "gstv4l2h265enc.h"
 #include "gstv4l2jpegenc.h"
 #include "gstv4l2mpeg4enc.h"
 #include "gstv4l2vp8enc.h"
@@ -197,6 +198,10 @@ gst_v4l2_probe_and_register (GstPlugin * plugin)
         gst_v4l2_h264_enc_register (plugin, basename, it->device_path,
             sink_caps, src_caps);
 
+      if (gst_v4l2_is_h265_enc (sink_caps, src_caps))
+        gst_v4l2_h265_enc_register (plugin, basename, it->device_path,
+            sink_caps, src_caps);
+
       if (gst_v4l2_is_mpeg4_enc (sink_caps, src_caps))
         gst_v4l2_mpeg4_enc_register (plugin, basename, it->device_path,
             sink_caps, src_caps);

sys/v4l2/gstv4l2h265enc.c

+/*
+ * Copyright (C) 2018 NVIDIA CORPORATION.
+ *    Author: Amit Pandya <apandya@nvidia.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 <sys/stat.h>
+#include <fcntl.h>
+#include <errno.h>
+#include <unistd.h>
+#include <string.h>
+
+#include "gstv4l2object.h"
+#include "gstv4l2h265enc.h"
+
+#include <string.h>
+#include <gst/gst-i18n-plugin.h>
+
+GST_DEBUG_CATEGORY_STATIC (gst_v4l2_h265_enc_debug);
+#define GST_CAT_DEFAULT gst_v4l2_h265_enc_debug
+
+static GstStaticCaps src_template_caps =
+GST_STATIC_CAPS ("video/x-h265, stream-format=(string) byte-stream, "
+    "alignment=(string) au");
+
+enum
+{
+  PROP_0,
+  V4L2_STD_OBJECT_PROPS,
+/* TODO add H265 controls */
+};
+
+#define gst_v4l2_h265_enc_parent_class parent_class
+G_DEFINE_TYPE (GstV4l2H265Enc, gst_v4l2_h265_enc, GST_TYPE_V4L2_VIDEO_ENC);
+
+static void
+gst_v4l2_h265_enc_set_property (GObject * object,
+    guint prop_id, const GValue * value, GParamSpec * pspec)
+{
+  /* TODO */
+}
+
+static void
+gst_v4l2_h265_enc_get_property (GObject * object,
+    guint prop_id, GValue * value, GParamSpec * pspec)
+{
+  /* TODO */
+}
+
+static gint
+v4l2_profile_from_string (const gchar * profile)
+{
+  gint v4l2_profile = -1;
+
+  if (g_str_equal (profile, "main")) {
+    v4l2_profile = V4L2_MPEG_VIDEO_HEVC_PROFILE_MAIN;
+  } else if (g_str_equal (profile, "mainstillpicture")) {
+    v4l2_profile = V4L2_MPEG_VIDEO_HEVC_PROFILE_MAIN_STILL_PICTURE;
+  } else if (g_str_equal (profile, "main10")) {
+    v4l2_profile = V4L2_MPEG_VIDEO_HEVC_PROFILE_MAIN_10;
+  } else {
+    GST_WARNING ("Unsupported profile string '%s'", profile);
+  }
+
+  return v4l2_profile;
+}
+
+static const gchar *
+v4l2_profile_to_string (gint v4l2_profile)
+{
+  switch (v4l2_profile) {
+    case V4L2_MPEG_VIDEO_HEVC_PROFILE_MAIN:
+      return "main";
+    case V4L2_MPEG_VIDEO_HEVC_PROFILE_MAIN_STILL_PICTURE:
+      return "mainstillpicture";
+    case V4L2_MPEG_VIDEO_HEVC_PROFILE_MAIN_10:
+      return "main10";
+    default:
+      GST_WARNING ("Unsupported V4L2 profile %i", v4l2_profile);
+      break;
+  }
+  return NULL;
+}
+
+static gint
+v4l2_level_from_string (const gchar * level)
+{
+  gint v4l2_level = -1;
+
+  if (g_str_equal (level, "1"))
+    v4l2_level = V4L2_MPEG_VIDEO_HEVC_LEVEL_1;
+  else if (g_str_equal (level, "2"))
+    v4l2_level = V4L2_MPEG_VIDEO_HEVC_LEVEL_2;
+  else if (g_str_equal (level, "2.1"))
+    v4l2_level = V4L2_MPEG_VIDEO_HEVC_LEVEL_2_1;
+  else if (g_str_equal (level, "3"))
+    v4l2_level = V4L2_MPEG_VIDEO_HEVC_LEVEL_3;
+  else if (g_str_equal (level, "3.1"))
+    v4l2_level = V4L2_MPEG_VIDEO_HEVC_LEVEL_3_1;
+  else if (g_str_equal (level, "4"))
+    v4l2_level = V4L2_MPEG_VIDEO_HEVC_LEVEL_4;
+  else if (g_str_equal (level, "4.1"))
+    v4l2_level = V4L2_MPEG_VIDEO_HEVC_LEVEL_4_1;
+  else if (g_str_equal (level, "5"))
+    v4l2_level = V4L2_MPEG_VIDEO_HEVC_LEVEL_5;
+  else if (g_str_equal (level, "5.1"))
+    v4l2_level = V4L2_MPEG_VIDEO_HEVC_LEVEL_5_1;
+  else if (g_str_equal (level, "5.2"))
+    v4l2_level = V4L2_MPEG_VIDEO_HEVC_LEVEL_5_2;
+  else if (g_str_equal (level, "6"))
+    v4l2_level = V4L2_MPEG_VIDEO_HEVC_LEVEL_6;
+  else if (g_str_equal (level, "6.1"))
+    v4l2_level = V4L2_MPEG_VIDEO_HEVC_LEVEL_6_1;
+  else if (g_str_equal (level, "6.2"))
+    v4l2_level = V4L2_MPEG_VIDEO_HEVC_LEVEL_6_2;
+  else
+    GST_WARNING ("Unsupported level '%s'", level);
+
+  return v4l2_level;
+}
+
+static const gchar *
+v4l2_level_to_string (gint v4l2_level)
+{
+  switch (v4l2_level) {
+    case V4L2_MPEG_VIDEO_HEVC_LEVEL_1:
+      return "1";
+    case V4L2_MPEG_VIDEO_HEVC_LEVEL_2:
+      return "2";
+    case V4L2_MPEG_VIDEO_HEVC_LEVEL_2_1:
+      return "2.1";
+    case V4L2_MPEG_VIDEO_HEVC_LEVEL_3:
+      return "3";
+    case V4L2_MPEG_VIDEO_HEVC_LEVEL_3_1:
+      return "3.1";
+    case V4L2_MPEG_VIDEO_HEVC_LEVEL_4:
+      return "4";
+    case V4L2_MPEG_VIDEO_HEVC_LEVEL_4_1:
+      return "4.1";
+    case V4L2_MPEG_VIDEO_HEVC_LEVEL_5:
+      return "5";
+    case V4L2_MPEG_VIDEO_HEVC_LEVEL_5_1:
+      return "5.1";
+    case V4L2_MPEG_VIDEO_HEVC_LEVEL_5_2:
+      return "5.2";
+    case V4L2_MPEG_VIDEO_HEVC_LEVEL_6:
+      return "6";
+    case V4L2_MPEG_VIDEO_HEVC_LEVEL_6_1:
+      return "6.1";
+    case V4L2_MPEG_VIDEO_HEVC_LEVEL_6_2:
+      return "6.2";
+    default:
+      GST_WARNING ("Unsupported V4L2 level %i", v4l2_level);
+      break;
+  }
+
+  return NULL;
+}
+
+static void
+gst_v4l2_h265_enc_init (GstV4l2H265Enc * self)
+{
+}
+
+static void
+gst_v4l2_h265_enc_class_init (GstV4l2H265EncClass * klass)
+{
+  GstElementClass *element_class;
+  GObjectClass *gobject_class;
+  GstV4l2VideoEncClass *baseclass;
+
+  parent_class = g_type_class_peek_parent (klass);
+
+  element_class = (GstElementClass *) klass;
+  gobject_class = (GObjectClass *) klass;
+  baseclass = (GstV4l2VideoEncClass *) (klass);
+
+  GST_DEBUG_CATEGORY_INIT (gst_v4l2_h265_enc_debug, "v4l2h265enc", 0,
+      "V4L2 H.265 Encoder");
+
+  gst_element_class_set_static_metadata (element_class,
+      "V4L2 H.265 Encoder",
+      "Codec/Encoder/Video",
+      "Encode H.265 video streams via V4L2 API",
+      "Amit Pandya <apandya@nvidia.com>");
+
+  gobject_class->set_property =
+      GST_DEBUG_FUNCPTR (gst_v4l2_h265_enc_set_property);
+  gobject_class->get_property =
+      GST_DEBUG_FUNCPTR (gst_v4l2_h265_enc_get_property);
+
+  baseclass->codec_name = "H265";
+  baseclass->profile_cid = V4L2_CID_MPEG_VIDEO_HEVC_PROFILE;
+  baseclass->profile_to_string = v4l2_profile_to_string;
+  baseclass->profile_from_string = v4l2_profile_from_string;
+  baseclass->level_cid = V4L2_CID_MPEG_VIDEO_HEVC_LEVEL;
+  baseclass->level_to_string = v4l2_level_to_string;
+  baseclass->level_from_string = v4l2_level_from_string;
+}
+
+/* Probing functions */
+gboolean
+gst_v4l2_is_h265_enc (GstCaps * sink_caps, GstCaps * src_caps)
+{
+  return gst_v4l2_is_video_enc (sink_caps, src_caps,
+      gst_static_caps_get (&src_template_caps));
+}
+
+void
+gst_v4l2_h265_enc_register (GstPlugin * plugin, const gchar * basename,
+    const gchar * device_path, GstCaps * sink_caps, GstCaps * src_caps)
+{
+  gst_v4l2_video_enc_register (plugin, GST_TYPE_V4L2_H265_ENC,
+      "h265", basename, device_path, sink_caps,
+      gst_static_caps_get (&src_template_caps), src_caps);
+}

sys/v4l2/gstv4l2h265enc.h

+/*
+ * Copyright (C) 2018 NVIDIA CORPORATION.
+ *    Author: Amit Pandya <apandya@nvidia.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.
+ *
+ */
+
+#ifndef __GST_V4L2_H265_ENC_H__
+#define __GST_V4L2_H265_ENC_H__
+
+#include <gst/gst.h>
+#include "gstv4l2videoenc.h"
+
+G_BEGIN_DECLS
+#define GST_TYPE_V4L2_H265_ENC \
+  (gst_v4l2_h265_enc_get_type())
+#define GST_V4L2_H265_ENC(obj) \
+  (G_TYPE_CHECK_INSTANCE_CAST((obj),GST_TYPE_V4L2_H265_ENC,GstV4l2H265Enc))
+#define GST_V4L2_H265_ENC_CLASS(klass) \
+  (G_TYPE_CHECK_CLASS_CAST((klass),GST_TYPE_V4L2_H265_ENC,GstV4l2H265EncClass))
+#define GST_IS_V4L2_H265_ENC(obj) \
+  (G_TYPE_CHECK_INSTANCE_TYPE((obj),GST_TYPE_V4L2_H265_ENC))
+#define GST_IS_V4L2_H265_ENC_CLASS(obj) \
+  (G_TYPE_CHECK_CLASS_TYPE((klass),GST_TYPE_V4L2_H265_ENC))
+typedef struct _GstV4l2H265Enc GstV4l2H265Enc;
+typedef struct _GstV4l2H265EncClass GstV4l2H265EncClass;
+
+struct _GstV4l2H265Enc
+{
+  GstV4l2VideoEnc parent;
+};
+
+struct _GstV4l2H265EncClass
+{
+  GstV4l2VideoEncClass parent_class;
+};
+
+GType gst_v4l2_h265_enc_get_type (void);
+
+gboolean gst_v4l2_is_h265_enc (GstCaps * sink_caps, GstCaps * src_caps);
+
+void gst_v4l2_h265_enc_register (GstPlugin * plugin, const gchar * basename,
+    const gchar * device_path, GstCaps * sink_caps, GstCaps * src_caps);
+
+G_END_DECLS
+#endif /* __GST_V4L2_H265_ENC_H__ */

sys/v4l2/meson.build

@@ -15,6 +15,7 @@ v4l2_sources = [
   'gstv4l2fwhtenc.c',
   'gstv4l2h263enc.c',
   'gstv4l2h264enc.c',
+  'gstv4l2h265enc.c',
   'gstv4l2jpegenc.c',
   'gstv4l2mpeg4enc.c',
   'gstv4l2vidorient.c',