omxh265dec: add H265 decoder

Add HEVC decoder for the zynqultrascaleplus platform.

I used the H264 decoder code as a template.

https://bugzilla.gnome.org/show_bug.cgi?id=785434

config/zynqultrascaleplus/gstomx.conf

@@ -24,3 +24,12 @@ in-port-index=0
 out-port-index=1
 rank=257
 hacks=no-disable-outport
+
+[omxh265dec]
+type-name=GstOMXH265Dec
+core-name=/usr/lib/libOMX.allegro.core.so.1
+component-name=OMX.allegro.h265.decoder
+in-port-index=0
+out-port-index=1
+rank=257
+hacks=no-disable-outport;pass-profile-to-decoder

omx/Makefile.am

@@ -12,9 +12,11 @@ endif
 
 if HAVE_HEVC
 H265_C_FILES = \
+	gstomxh265dec.c \
 	gstomxh265enc.c \
 	gstomxh265utils.c
 H265_H_FILES = \
+	gstomxh265dec.h \
 	gstomxh265enc.h \
 	gstomxh265utils.h
 endif

omx/gstomx.c

@@ -33,6 +33,7 @@
 #include "gstomxmpeg4videodec.h"
 #include "gstomxh264dec.h"
 #include "gstomxh263dec.h"
+#include "gstomxh265dec.h"
 #include "gstomxvp8dec.h"
 #include "gstomxtheoradec.h"
 #include "gstomxwmvdec.h"
@@ -2309,7 +2310,7 @@ static const GGetTypeFunction types[] = {
       , gst_omx_theora_dec_get_type
 #endif
 #ifdef HAVE_HEVC
-      , gst_omx_h265_enc_get_type
+      , gst_omx_h265_enc_get_type, gst_omx_h265_dec_get_type
 #endif
 };
 

omx/gstomxh265dec.c

@@ -0,0 +1,201 @@
+/*
+ * Copyright (C) 2011, Hewlett-Packard Development Company, L.P.
+ * Copyright (C) 2017 Xilinx, Inc.
+ *   Author: Sebastian Dröge <sebastian.droege@collabora.co.uk>, Collabora Ltd.
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation
+ * version 2.1 of the License.
+ *
+ * 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
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301 USA
+ *
+ */
+
+#ifdef HAVE_CONFIG_H
+#include "config.h"
+#endif
+
+#include <gst/gst.h>
+
+#include "gstomxh265dec.h"
+#include "gstomxh265utils.h"
+
+GST_DEBUG_CATEGORY_STATIC (gst_omx_h265_dec_debug_category);
+#define GST_CAT_DEFAULT gst_omx_h265_dec_debug_category
+
+/* prototypes */
+static gboolean gst_omx_h265_dec_is_format_change (GstOMXVideoDec * dec,
+    GstOMXPort * port, GstVideoCodecState * state);
+static gboolean gst_omx_h265_dec_set_format (GstOMXVideoDec * dec,
+    GstOMXPort * port, GstVideoCodecState * state);
+
+enum
+{
+  PROP_0
+};
+
+/* class initialization */
+
+#define DEBUG_INIT \
+  GST_DEBUG_CATEGORY_INIT (gst_omx_h265_dec_debug_category, "omxh265dec", 0, \
+      "debug category for gst-omx H265 video decoder");
+
+G_DEFINE_TYPE_WITH_CODE (GstOMXH265Dec, gst_omx_h265_dec,
+    GST_TYPE_OMX_VIDEO_DEC, DEBUG_INIT);
+
+static void
+gst_omx_h265_dec_class_init (GstOMXH265DecClass * klass)
+{
+  GstOMXVideoDecClass *videodec_class = GST_OMX_VIDEO_DEC_CLASS (klass);
+  GstElementClass *element_class = GST_ELEMENT_CLASS (klass);
+
+  videodec_class->is_format_change =
+      GST_DEBUG_FUNCPTR (gst_omx_h265_dec_is_format_change);
+  videodec_class->set_format = GST_DEBUG_FUNCPTR (gst_omx_h265_dec_set_format);
+
+  videodec_class->cdata.default_sink_template_caps = "video/x-h265, "
+      "alignment=(string) au, "
+      "stream-format=(string) byte-stream, "
+      "width=(int) [1,MAX], " "height=(int) [1,MAX]";
+
+  gst_element_class_set_static_metadata (element_class,
+      "OpenMAX H.265 Video Decoder",
+      "Codec/Decoder/Video",
+      "Decode H.265 video streams",
+      "Sebastian Dröge <sebastian.droege@collabora.co.uk>");
+
+  gst_omx_set_default_role (&videodec_class->cdata, "video_decoder.hevc");
+}
+
+static void
+gst_omx_h265_dec_init (GstOMXH265Dec * self)
+{
+}
+
+static gboolean
+gst_omx_h265_dec_is_format_change (GstOMXVideoDec * dec,
+    GstOMXPort * port, GstVideoCodecState * state)
+{
+  GstCaps *old_caps = NULL;
+  GstCaps *new_caps = state->caps;
+  GstStructure *old_structure, *new_structure;
+  const gchar *old_profile, *old_level, *old_tier, *new_profile, *new_level,
+      *new_tier;
+
+  if (dec->input_state) {
+    old_caps = dec->input_state->caps;
+  }
+
+  if (!old_caps) {
+    return FALSE;
+  }
+
+  old_structure = gst_caps_get_structure (old_caps, 0);
+  new_structure = gst_caps_get_structure (new_caps, 0);
+  old_profile = gst_structure_get_string (old_structure, "profile");
+  old_level = gst_structure_get_string (old_structure, "level");
+  old_tier = gst_structure_get_string (old_structure, "tier");
+  new_profile = gst_structure_get_string (new_structure, "profile");
+  new_level = gst_structure_get_string (new_structure, "level");
+  new_tier = gst_structure_get_string (new_structure, "tier");
+
+  if (g_strcmp0 (old_profile, new_profile) != 0
+      || g_strcmp0 (old_level, new_level) != 0
+      || g_strcmp0 (old_tier, new_tier)) {
+    return TRUE;
+  }
+
+  return FALSE;
+}
+
+static gboolean
+set_profile_and_level (GstOMXH265Dec * self, GstVideoCodecState * state)
+{
+  OMX_ERRORTYPE err;
+  OMX_VIDEO_PARAM_PROFILELEVELTYPE param;
+  const gchar *profile_string, *level_string, *tier_string;
+  GstStructure *s;
+
+  GST_OMX_INIT_STRUCT (&param);
+  param.nPortIndex = GST_OMX_VIDEO_DEC (self)->dec_in_port->index;
+
+  /* Pass profile, level and tier to the decoder if we have all info from the
+   * caps. */
+  s = gst_caps_get_structure (state->caps, 0);
+  profile_string = gst_structure_get_string (s, "profile");
+  if (!profile_string)
+    return TRUE;
+
+  param.eProfile = gst_omx_h265_utils_get_profile_from_str (profile_string);
+  if (param.eProfile == OMX_VIDEO_HEVCProfileUnknown)
+    goto unsupported_profile;
+
+  level_string = gst_structure_get_string (s, "level");
+  tier_string = gst_structure_get_string (s, "tier");
+  if (!level_string || !tier_string)
+    return TRUE;
+
+  param.eLevel =
+      gst_omx_h265_utils_get_level_from_str (level_string, tier_string);
+  if (param.eLevel == OMX_VIDEO_HEVCLevelUnknown)
+    goto unsupported_level;
+
+  GST_DEBUG_OBJECT (self,
+      "Set profile (%s) level (%s) and tier (%s) on decoder", profile_string,
+      level_string, tier_string);
+
+  err =
+      gst_omx_component_set_parameter (GST_OMX_VIDEO_DEC (self)->dec,
+      OMX_IndexParamVideoProfileLevelCurrent, &param);
+  if (err == OMX_ErrorUnsupportedIndex) {
+    GST_WARNING_OBJECT (self,
+        "Setting profile/level not supported by component");
+  } else if (err != OMX_ErrorNone) {
+    GST_ERROR_OBJECT (self,
+        "Error setting profile %u and level %u: %s (0x%08x)",
+        (guint) param.eProfile, (guint) param.eLevel,
+        gst_omx_error_to_string (err), err);
+    return FALSE;
+  }
+
+  return TRUE;
+
+unsupported_profile:
+  GST_ERROR_OBJECT (self, "Unsupported profile %s", profile_string);
+  return FALSE;
+
+unsupported_level:
+  GST_ERROR_OBJECT (self, "Unsupported level %s", level_string);
+  return FALSE;
+}
+
+static gboolean
+gst_omx_h265_dec_set_format (GstOMXVideoDec * dec, GstOMXPort * port,
+    GstVideoCodecState * state)
+{
+  GstOMXVideoDecClass *klass = GST_OMX_VIDEO_DEC_GET_CLASS (dec);
+  OMX_PARAM_PORTDEFINITIONTYPE port_def;
+  OMX_ERRORTYPE err;
+
+  gst_omx_port_get_port_definition (port, &port_def);
+  port_def.format.video.eCompressionFormat =
+      (OMX_VIDEO_CODINGTYPE) OMX_VIDEO_CodingHEVC;
+  err = gst_omx_port_update_port_definition (port, &port_def);
+  if (err != OMX_ErrorNone)
+    return FALSE;
+
+  if (klass->cdata.hacks & GST_OMX_HACK_PASS_PROFILE_TO_DECODER) {
+    if (!set_profile_and_level (GST_OMX_H265_DEC (dec), state))
+      return FALSE;
+  }
+
+  return TRUE;
+}

omx/gstomxh265dec.h

@@ -0,0 +1,61 @@
+/*
+ * Copyright (C) 2011, Hewlett-Packard Development Company, L.P.
+ * Copyright (C) 2017 Xilinx, Inc.
+ *   Author: Sebastian Dröge <sebastian.droege@collabora.co.uk>, Collabora Ltd.
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation
+ * version 2.1 of the License.
+ *
+ * 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
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301 USA
+ *
+ */
+
+#ifndef __GST_OMX_H265_DEC_H__
+#define __GST_OMX_H265_DEC_H__
+
+#include <gst/gst.h>
+#include "gstomxvideodec.h"
+
+G_BEGIN_DECLS
+
+#define GST_TYPE_OMX_H265_DEC \
+  (gst_omx_h265_dec_get_type())
+#define GST_OMX_H265_DEC(obj) \
+  (G_TYPE_CHECK_INSTANCE_CAST((obj),GST_TYPE_OMX_H265_DEC,GstOMXH265Dec))
+#define GST_OMX_H265_DEC_CLASS(klass) \
+  (G_TYPE_CHECK_CLASS_CAST((klass),GST_TYPE_OMX_H265_DEC,GstOMXH265DecClass))
+#define GST_OMX_H265_DEC_GET_CLASS(obj) \
+  (G_TYPE_INSTANCE_GET_CLASS((obj),GST_TYPE_OMX_H265_DEC,GstOMXH265DecClass))
+#define GST_IS_OMX_H265_DEC(obj) \
+  (G_TYPE_CHECK_INSTANCE_TYPE((obj),GST_TYPE_OMX_H265_DEC))
+#define GST_IS_OMX_H265_DEC_CLASS(obj) \
+  (G_TYPE_CHECK_CLASS_TYPE((klass),GST_TYPE_OMX_H265_DEC))
+
+typedef struct _GstOMXH265Dec GstOMXH265Dec;
+typedef struct _GstOMXH265DecClass GstOMXH265DecClass;
+
+struct _GstOMXH265Dec
+{
+  GstOMXVideoDec parent;
+};
+
+struct _GstOMXH265DecClass
+{
+  GstOMXVideoDecClass parent_class;
+};
+
+GType gst_omx_h265_dec_get_type (void);
+
+G_END_DECLS
+
+#endif /* __GST_OMX_H265_DEC_H__ */
+

omx/meson.build

@@ -40,6 +40,7 @@ endif
 if have_omx_hevc
   omx_sources += 'gstomxh265utils.c'
   omx_sources += 'gstomxh265enc.c'
+  omx_sources += 'gstomxh265dec.c'
 endif
 
 if not have_external_omx