--- /dev/null
+/*
+ * gstvaapiencode_h265.c - VA-API H.265 encoder
+ *
+ * Copyright (C) 2015 Intel Corporation
+ * Author: Sreerenj Balachandran <sreerenj.balachandran@intel.com>
+ *
+ * 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; either version 2.1
+ * 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
+ * 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
+ */
+
+#include "gstcompat.h"
+#include <gst/vaapi/gstvaapidisplay.h>
+#include <gst/vaapi/gstvaapiencoder_h265.h>
+#include <gst/vaapi/gstvaapiutils_h265.h>
+#include "gstvaapiencode_h265.h"
+#include "gstvaapipluginutil.h"
+#include "gstvaapivideomemory.h"
+
+#define GST_PLUGIN_NAME "vaapiencode_h265"
+#define GST_PLUGIN_DESC "A VA-API based H.265 video encoder"
+
+GST_DEBUG_CATEGORY_STATIC (gst_vaapi_h265_encode_debug);
+#define GST_CAT_DEFAULT gst_vaapi_h265_encode_debug
+
+#define GST_CODEC_CAPS \
+ "video/x-h265, " \
+ "stream-format = (string) { hvc1, byte-stream }, " \
+ "alignment = (string) au"
+
+/* *INDENT-OFF* */
+static const char gst_vaapiencode_h265_sink_caps_str[] =
+ GST_VIDEO_CAPS_MAKE_WITH_FEATURES (GST_CAPS_FEATURE_MEMORY_VAAPI_SURFACE,
+ "{ ENCODED, NV12, I420, YV12 }") ", "
+ GST_CAPS_INTERLACED_FALSE "; "
+ GST_VIDEO_CAPS_MAKE (GST_VIDEO_FORMATS_ALL) ", "
+ GST_CAPS_INTERLACED_FALSE;
+/* *INDENT-ON* */
+
+/* *INDENT-OFF* */
+static const char gst_vaapiencode_h265_src_caps_str[] =
+ GST_CODEC_CAPS ", "
+ "profile = (string) { main }";
+/* *INDENT-ON* */
+
+/* *INDENT-OFF* */
+static GstStaticPadTemplate gst_vaapiencode_h265_sink_factory =
+ GST_STATIC_PAD_TEMPLATE ("sink",
+ GST_PAD_SINK,
+ GST_PAD_ALWAYS,
+ GST_STATIC_CAPS (gst_vaapiencode_h265_sink_caps_str));
+/* *INDENT-ON* */
+
+/* *INDENT-OFF* */
+static GstStaticPadTemplate gst_vaapiencode_h265_src_factory =
+ GST_STATIC_PAD_TEMPLATE ("src",
+ GST_PAD_SRC,
+ GST_PAD_ALWAYS,
+ GST_STATIC_CAPS (gst_vaapiencode_h265_src_caps_str));
+/* *INDENT-ON* */
+
+/* h265 encode */
+G_DEFINE_TYPE (GstVaapiEncodeH265, gst_vaapiencode_h265, GST_TYPE_VAAPIENCODE);
+
+static void
+gst_vaapiencode_h265_init (GstVaapiEncodeH265 * encode)
+{
+ gst_vaapiencode_init_properties (GST_VAAPIENCODE_CAST (encode));
+}
+
+static void
+gst_vaapiencode_h265_finalize (GObject * object)
+{
+ G_OBJECT_CLASS (gst_vaapiencode_h265_parent_class)->finalize (object);
+}
+
+static void
+gst_vaapiencode_h265_set_property (GObject * object,
+ guint prop_id, const GValue * value, GParamSpec * pspec)
+{
+ GstVaapiEncodeClass *const encode_class = GST_VAAPIENCODE_GET_CLASS (object);
+ GstVaapiEncode *const base_encode = GST_VAAPIENCODE_CAST (object);
+
+ switch (prop_id) {
+ default:
+ if (!encode_class->set_property (base_encode, prop_id, value))
+ G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
+ break;
+ }
+}
+
+static void
+gst_vaapiencode_h265_get_property (GObject * object,
+ guint prop_id, GValue * value, GParamSpec * pspec)
+{
+ GstVaapiEncodeClass *const encode_class = GST_VAAPIENCODE_GET_CLASS (object);
+ GstVaapiEncode *const base_encode = GST_VAAPIENCODE_CAST (object);
+
+ switch (prop_id) {
+ default:
+ if (!encode_class->get_property (base_encode, prop_id, value))
+ G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
+ break;
+ }
+}
+
+typedef struct
+{
+ GstVaapiProfile best_profile;
+ guint best_score;
+} FindBestProfileData;
+
+static void
+find_best_profile_value (FindBestProfileData * data, const GValue * value)
+{
+ const gchar *str;
+ GstVaapiProfile profile;
+ guint score;
+
+ if (!value || !G_VALUE_HOLDS_STRING (value))
+ return;
+
+ str = g_value_get_string (value);
+ if (!str)
+ return;
+ profile = gst_vaapi_utils_h265_get_profile_from_string (str);
+ if (!profile)
+ return;
+ score = gst_vaapi_utils_h265_get_profile_score (profile);
+ if (score < data->best_score)
+ return;
+ data->best_profile = profile;
+ data->best_score = score;
+}
+
+static GstVaapiProfile
+find_best_profile (GstCaps * caps)
+{
+ FindBestProfileData data;
+ guint i, j, num_structures, num_values;
+
+ data.best_profile = GST_VAAPI_PROFILE_UNKNOWN;
+ data.best_score = 0;
+
+ num_structures = gst_caps_get_size (caps);
+ for (i = 0; i < num_structures; i++) {
+ GstStructure *const structure = gst_caps_get_structure (caps, i);
+ const GValue *const value = gst_structure_get_value (structure, "profile");
+
+ if (!value)
+ continue;
+ if (G_VALUE_HOLDS_STRING (value))
+ find_best_profile_value (&data, value);
+ else if (GST_VALUE_HOLDS_LIST (value)) {
+ num_values = gst_value_list_get_size (value);
+ for (j = 0; j < num_values; j++)
+ find_best_profile_value (&data, gst_value_list_get_value (value, j));
+ }
+ }
+ return data.best_profile;
+}
+
+static gboolean
+gst_vaapiencode_h265_set_config (GstVaapiEncode * base_encode)
+{
+ GstVaapiEncoderH265 *const encoder =
+ GST_VAAPI_ENCODER_H265 (base_encode->encoder);
+ GstCaps *allowed_caps;
+ GstVaapiProfile profile;
+
+ /* Check for the largest profile that is supported */
+ allowed_caps =
+ gst_pad_get_allowed_caps (GST_VAAPI_PLUGIN_BASE_SRC_PAD (base_encode));
+ if (!allowed_caps)
+ return TRUE;
+
+ profile = find_best_profile (allowed_caps);
+ gst_caps_unref (allowed_caps);
+ if (profile) {
+ GST_INFO ("using %s profile as target decoder constraints",
+ gst_vaapi_utils_h265_get_profile_string (profile));
+ if (!gst_vaapi_encoder_h265_set_max_profile (encoder, profile))
+ return FALSE;
+ }
+ return TRUE;
+}
+
+static GstCaps *
+gst_vaapiencode_h265_get_caps (GstVaapiEncode * base_encode)
+{
+ GstVaapiEncodeH265 *const encode = GST_VAAPIENCODE_H265_CAST (base_encode);
+ GstCaps *caps, *allowed_caps;
+
+ caps = gst_caps_from_string (GST_CODEC_CAPS);
+
+ /* Check whether "stream-format" is hvcC mode */
+ allowed_caps =
+ gst_pad_get_allowed_caps (GST_VAAPI_PLUGIN_BASE_SRC_PAD (encode));
+ if (allowed_caps) {
+ const char *stream_format = NULL;
+ GstStructure *structure;
+ guint i, num_structures;
+
+ num_structures = gst_caps_get_size (allowed_caps);
+ for (i = 0; !stream_format && i < num_structures; i++) {
+ structure = gst_caps_get_structure (allowed_caps, i);
+ if (!gst_structure_has_field_typed (structure, "stream-format",
+ G_TYPE_STRING))
+ continue;
+ stream_format = gst_structure_get_string (structure, "stream-format");
+ }
+ encode->is_hvc = stream_format && strcmp (stream_format, "hvc1") == 0;
+ gst_caps_unref (allowed_caps);
+ }
+ gst_caps_set_simple (caps, "stream-format", G_TYPE_STRING,
+ encode->is_hvc ? "hvc1" : "byte-stream", NULL);
+
+ base_encode->need_codec_data = encode->is_hvc;
+
+ /* XXX: update profile and level information */
+ return caps;
+}
+
+static GstVaapiEncoder *
+gst_vaapiencode_h265_alloc_encoder (GstVaapiEncode * base,
+ GstVaapiDisplay * display)
+{
+ return gst_vaapi_encoder_h265_new (display);
+}
+
+/* h265 NAL byte stream operations */
+static guint8 *
+_h265_byte_stream_next_nal (guint8 * buffer, guint32 len, guint32 * nal_size)
+{
+ const guint8 *cur = buffer;
+ const guint8 *const end = buffer + len;
+ guint8 *nal_start = NULL;
+ guint32 flag = 0xFFFFFFFF;
+ guint32 nal_start_len = 0;
+
+ g_assert (len >= 0 && buffer && nal_size);
+ if (len < 3) {
+ *nal_size = len;
+ nal_start = (len ? buffer : NULL);
+ return nal_start;
+ }
+
+ /*locate head postion */
+ if (!buffer[0] && !buffer[1]) {
+ if (buffer[2] == 1) { /* 0x000001 */
+ nal_start_len = 3;
+ } else if (!buffer[2] && len >= 4 && buffer[3] == 1) { /* 0x00000001 */
+ nal_start_len = 4;
+ }
+ }
+ nal_start = buffer + nal_start_len;
+ cur = nal_start;
+
+ /*find next nal start position */
+ while (cur < end) {
+ flag = ((flag << 8) | ((*cur++) & 0xFF));
+ if ((flag & 0x00FFFFFF) == 0x00000001) {
+ if (flag == 0x00000001)
+ *nal_size = cur - 4 - nal_start;
+ else
+ *nal_size = cur - 3 - nal_start;
+ break;
+ }
+ }
+ if (cur >= end) {
+ *nal_size = end - nal_start;
+ if (nal_start >= end) {
+ nal_start = NULL;
+ }
+ }
+ return nal_start;
+}
+
+static inline void
+_start_code_to_size (guint8 nal_start_code[4], guint32 nal_size)
+{
+ nal_start_code[0] = ((nal_size >> 24) & 0xFF);
+ nal_start_code[1] = ((nal_size >> 16) & 0xFF);
+ nal_start_code[2] = ((nal_size >> 8) & 0xFF);
+ nal_start_code[3] = (nal_size & 0xFF);
+}
+
+static gboolean
+_h265_convert_byte_stream_to_hvc (GstBuffer * buf)
+{
+ GstMapInfo info;
+ guint32 nal_size;
+ guint8 *nal_start_code, *nal_body;
+ guint8 *frame_end;
+
+ g_assert (buf);
+
+ if (!gst_buffer_map (buf, &info, GST_MAP_READ | GST_MAP_WRITE))
+ return FALSE;
+
+ nal_start_code = info.data;
+ frame_end = info.data + info.size;
+ nal_size = 0;
+
+ while ((frame_end > nal_start_code) &&
+ (nal_body = _h265_byte_stream_next_nal (nal_start_code,
+ frame_end - nal_start_code, &nal_size)) != NULL) {
+ if (!nal_size)
+ goto error;
+
+ g_assert (nal_body - nal_start_code == 4);
+ _start_code_to_size (nal_start_code, nal_size);
+ nal_start_code = nal_body + nal_size;
+ }
+ gst_buffer_unmap (buf, &info);
+ return TRUE;
+
+error:
+ gst_buffer_unmap (buf, &info);
+ return FALSE;
+}
+
+static GstFlowReturn
+gst_vaapiencode_h265_alloc_buffer (GstVaapiEncode * base_encode,
+ GstVaapiCodedBuffer * coded_buf, GstBuffer ** out_buffer_ptr)
+{
+ GstVaapiEncodeH265 *const encode = GST_VAAPIENCODE_H265_CAST (base_encode);
+ GstVaapiEncoderH265 *const encoder =
+ GST_VAAPI_ENCODER_H265 (base_encode->encoder);
+ GstFlowReturn ret;
+
+ g_return_val_if_fail (encoder != NULL, GST_FLOW_ERROR);
+
+ ret =
+ GST_VAAPIENCODE_CLASS (gst_vaapiencode_h265_parent_class)->alloc_buffer
+ (base_encode, coded_buf, out_buffer_ptr);
+ if (ret != GST_FLOW_OK)
+ return ret;
+
+ if (!encode->is_hvc)
+ return GST_FLOW_OK;
+
+ /* Convert to hvcC format */
+ if (!_h265_convert_byte_stream_to_hvc (*out_buffer_ptr))
+ goto error_convert_buffer;
+ return GST_FLOW_OK;
+
+ /* ERRORS */
+error_convert_buffer:
+ {
+ GST_ERROR ("failed to convert from bytestream format to hvcC format");
+ gst_buffer_replace (out_buffer_ptr, NULL);
+ return GST_FLOW_ERROR;
+ }
+}
+
+static void
+gst_vaapiencode_h265_class_init (GstVaapiEncodeH265Class * klass)
+{
+ GObjectClass *const object_class = G_OBJECT_CLASS (klass);
+ GstElementClass *const element_class = GST_ELEMENT_CLASS (klass);
+ GstVaapiEncodeClass *const encode_class = GST_VAAPIENCODE_CLASS (klass);
+
+ GST_DEBUG_CATEGORY_INIT (gst_vaapi_h265_encode_debug,
+ GST_PLUGIN_NAME, 0, GST_PLUGIN_DESC);
+
+ object_class->finalize = gst_vaapiencode_h265_finalize;
+ object_class->set_property = gst_vaapiencode_h265_set_property;
+ object_class->get_property = gst_vaapiencode_h265_get_property;
+
+ encode_class->get_properties = gst_vaapi_encoder_h265_get_default_properties;
+ encode_class->set_config = gst_vaapiencode_h265_set_config;
+ encode_class->get_caps = gst_vaapiencode_h265_get_caps;
+ encode_class->alloc_encoder = gst_vaapiencode_h265_alloc_encoder;
+ encode_class->alloc_buffer = gst_vaapiencode_h265_alloc_buffer;
+
+ gst_element_class_set_static_metadata (element_class,
+ "VA-API H.265 encoder",
+ "Codec/Encoder/Video",
+ GST_PLUGIN_DESC,
+ "Sreerenj Balachandran <sreerenj.balachandran@intel.com>");
+
+ /* sink pad */
+ gst_element_class_add_pad_template (element_class,
+ gst_static_pad_template_get (&gst_vaapiencode_h265_sink_factory));
+
+ /* src pad */
+ gst_element_class_add_pad_template (element_class,
+ gst_static_pad_template_get (&gst_vaapiencode_h265_src_factory));
+
+ gst_vaapiencode_class_init_properties (encode_class);
+}
--- /dev/null
+/*
+ * gstvaapiencode_h265.h - VA-API H.265 encoder
+ *
+ * Copyright (C) 2015 Intel Corporation
+ * Author: Sreerenj Balachandran <sreerenj.balachandran@intel.com>
+ *
+ * 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; either version 2.1
+ * 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
+ * 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_VAAPIENCODE_H265_H
+#define GST_VAAPIENCODE_H265_H
+
+#include <gst/gst.h>
+#include "gstvaapiencode.h"
+
+G_BEGIN_DECLS
+
+#define GST_TYPE_VAAPIENCODE_H265 \
+ (gst_vaapiencode_h265_get_type ())
+#define GST_VAAPIENCODE_H265_CAST(obj) \
+ ((GstVaapiEncodeH265 *)(obj))
+#define GST_VAAPIENCODE_H265(obj) \
+ (G_TYPE_CHECK_INSTANCE_CAST ((obj), GST_TYPE_VAAPIENCODE_H265, \
+ GstVaapiEncodeH265))
+#define GST_VAAPIENCODE_H265_CLASS(klass) \
+ (G_TYPE_CHECK_CLASS_CAST ((klass), GST_TYPE_VAAPIENCODE_H265, \
+ GstVaapiEncodeH265Class))
+#define GST_VAAPIENCODE_H265_GET_CLASS(obj) \
+ (G_TYPE_INSTANCE_GET_CLASS ((obj), GST_TYPE_VAAPIENCODE_H265, \
+ GstVaapiEncodeH265Class))
+#define GST_IS_VAAPIENCODE_H265(obj) \
+ (G_TYPE_CHECK_INSTANCE_TYPE ((obj), GST_TYPE_VAAPIENCODE_H265))
+#define GST_IS_VAAPIENCODE_H265_CLASS(klass) \
+ (G_TYPE_CHECK_CLASS_TYPE ((klass), GST_TYPE_VAAPIENCODE_H265))
+
+typedef struct _GstVaapiEncodeH265 GstVaapiEncodeH265;
+typedef struct _GstVaapiEncodeH265Class GstVaapiEncodeH265Class;
+
+struct _GstVaapiEncodeH265
+{
+ /*< private >*/
+ GstVaapiEncode parent_instance;
+
+ guint is_hvc:1; /* [FALSE]=byte-stream (default); [TRUE]=hvcC */
+};
+
+struct _GstVaapiEncodeH265Class
+{
+ /*< private >*/
+ GstVaapiEncodeClass parent_class;
+};
+
+GType
+gst_vaapiencode_h265_get_type (void) G_GNUC_CONST;
+
+G_END_DECLS
+
+#endif /* GST_VAAPIENCODE_H265_H */
projects / platform / upstream / gstreamer.git / commitdiff