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validate: Add a mock decryptor element.
This commit is contained in:
Charlie Turner
parent
e536b05e5a
commit
ab0be78469
5 changed files with 248 additions and 0 deletions
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@ -4,6 +4,7 @@ built_source_make = gst-validate-enum-types.c
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source_c = \
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gst-validate-runner.c \
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gst-validate-reporter.c \
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gst-validate-mockdecryptor.c \
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gst-validate-monitor.c \
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gst-validate-element-monitor.c \
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gst-validate-bin-monitor.c \
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181
validate/gst/validate/gst-validate-mockdecryptor.c
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181
validate/gst/validate/gst-validate-mockdecryptor.c
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@ -0,0 +1,181 @@
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/* GStreamer
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* Copyright (C) 2019 Igalia S.L
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* Copyright (C) 2019 Metrological
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* Author: Charlie Turner <cturner@igalia.com>
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Library General Public
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* License as published by the Free Software Foundation; either
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* version 2 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Library General Public License for more details.
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*
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* You should have received a copy of the GNU Library General Public
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* License along with this library; if not, write to the
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* Free Software Foundation, Inc., 51 Franklin St, Fifth Floor,
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* Boston, MA 02110-1301, USA.
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*/
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#ifdef HAVE_CONFIG_H
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# include "config.h"
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#endif
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#include "gst-validate-mockdecryptor.h"
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#define CLEARKEY_SYSTEM_ID "78f32170-d883-11e0-9572-0800200c9a66"
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#define WIDEVINE_SYSTEM_ID "edef8ba9-79d6-4ace-a3c8-27dcd51d21ed"
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GST_DEBUG_CATEGORY_STATIC (gst_mockdecryptor_debug);
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#define GST_CAT_DEFAULT gst_mockdecryptor_debug
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static GstStaticPadTemplate gst_mockdecryptor_sink_template =
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GST_STATIC_PAD_TEMPLATE ("sink",
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GST_PAD_SINK,
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GST_PAD_ALWAYS,
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GST_STATIC_CAPS
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("application/x-cenc, original-media-type=(string)video/x-h264, "
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GST_PROTECTION_SYSTEM_ID_CAPS_FIELD "=(string)" WIDEVINE_SYSTEM_ID "; "
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"application/x-cenc, original-media-type=(string)audio/mpeg, "
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GST_PROTECTION_SYSTEM_ID_CAPS_FIELD "=(string)" WIDEVINE_SYSTEM_ID)
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);
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static GstStaticPadTemplate gst_mockdecryptor_src_template =
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GST_STATIC_PAD_TEMPLATE ("src",
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GST_PAD_SRC,
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GST_PAD_ALWAYS,
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GST_STATIC_CAPS ("video/webm; "
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"audio/webm; "
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"video/mp4; " "audio/mp4; " "audio/mpeg; " "video/x-h264"));
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#define _mockdecryptor_do_init \
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GST_DEBUG_CATEGORY_INIT (gst_mockdecryptor_debug, GST_MOCKDECRYPTOR_NAME, 0, "mock decryptor element");
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#define gst_mockdecryptor_parent_class parent_class
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G_DEFINE_TYPE_WITH_CODE (GstMockDecryptor, gst_mockdecryptor,
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GST_TYPE_BASE_TRANSFORM, _mockdecryptor_do_init);
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static GstCaps *gst_mockdecryptor_transform_caps (GstBaseTransform *,
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GstPadDirection, GstCaps *, GstCaps *);
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static GstFlowReturn gst_mockdecryptor_transform_in_place (GstBaseTransform *,
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GstBuffer *);
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static void
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gst_mockdecryptor_class_init (GstMockDecryptorClass * klass)
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{
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GstElementClass *element_class = GST_ELEMENT_CLASS (klass);
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GstBaseTransformClass *base_transform_class =
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GST_BASE_TRANSFORM_CLASS (klass);
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base_transform_class->transform_ip =
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GST_DEBUG_FUNCPTR (gst_mockdecryptor_transform_in_place);
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base_transform_class->transform_caps =
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GST_DEBUG_FUNCPTR (gst_mockdecryptor_transform_caps);
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base_transform_class->transform_ip_on_passthrough = FALSE;
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gst_element_class_add_static_pad_template (element_class,
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&gst_mockdecryptor_sink_template);
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gst_element_class_add_static_pad_template (element_class,
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&gst_mockdecryptor_src_template);
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gst_element_class_set_metadata (element_class,
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"Mock decryptor element for unit tests",
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GST_ELEMENT_FACTORY_KLASS_DECRYPTOR,
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"Use in unit tests", "Charlie Turner <cturner@igalia.com>");
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}
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static void
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gst_mockdecryptor_init (GstMockDecryptor * klass)
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{
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}
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static GstCaps *
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gst_mockdecryptor_transform_caps (GstBaseTransform * base,
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GstPadDirection direction, GstCaps * caps, GstCaps * filter)
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{
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GstCaps *transformed_caps = NULL;
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guint incoming_caps_size, size;
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gint duplicate;
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if (direction == GST_PAD_UNKNOWN)
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return NULL;
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GST_DEBUG_OBJECT (base,
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"direction: %s, caps: %" GST_PTR_FORMAT " filter: %" GST_PTR_FORMAT,
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(direction == GST_PAD_SRC) ? "src" : "sink", caps, filter);
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transformed_caps = gst_caps_new_empty ();
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incoming_caps_size = gst_caps_get_size (caps);
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for (guint i = 0; i < incoming_caps_size; ++i) {
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GstStructure *incoming_structure = gst_caps_get_structure (caps, i);
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GstStructure *outgoing_structure = NULL;
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if (direction == GST_PAD_SINK) {
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if (!gst_structure_has_field (incoming_structure, "original-media-type"))
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continue;
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outgoing_structure = gst_structure_copy (incoming_structure);
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gst_structure_set_name (outgoing_structure,
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gst_structure_get_string (outgoing_structure, "original-media-type"));
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gst_structure_remove_fields (outgoing_structure, "protection-system",
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"original-media-type", "encryption-algorithm", "encoding-scope",
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"cipher-mode", NULL);
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} else {
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outgoing_structure = gst_structure_copy (incoming_structure);
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/* Filter out the video related fields from the up-stream caps,
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* because they are not relevant to the input caps of this element and
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* can cause caps negotiation failures with adaptive bitrate streams.
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*/
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gst_structure_remove_fields (outgoing_structure, "base-profile",
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"codec_data", "height", "framerate", "level", "pixel-aspect-ratio",
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"profile", "rate", "width", NULL);
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gst_structure_set (outgoing_structure,
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"protection-system", G_TYPE_STRING, WIDEVINE_SYSTEM_ID,
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"original-media-type", G_TYPE_STRING,
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gst_structure_get_name (incoming_structure), NULL);
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gst_structure_set_name (outgoing_structure, "application/x-cenc");
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}
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duplicate = FALSE;
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size = gst_caps_get_size (transformed_caps);
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for (guint index = 0; !duplicate && index < size; ++index) {
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GstStructure *structure =
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gst_caps_get_structure (transformed_caps, index);
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if (gst_structure_is_equal (structure, outgoing_structure))
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duplicate = TRUE;
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}
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if (!duplicate)
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gst_caps_append_structure (transformed_caps, outgoing_structure);
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else
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gst_structure_free (outgoing_structure);
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}
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if (filter) {
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GstCaps *intersection;
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GST_DEBUG_OBJECT (base, "Using filter caps %" GST_PTR_FORMAT, filter);
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intersection =
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gst_caps_intersect_full (transformed_caps, filter,
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GST_CAPS_INTERSECT_FIRST);
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gst_caps_replace (&transformed_caps, intersection);
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}
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GST_DEBUG_OBJECT (base, "returning %" GST_PTR_FORMAT, transformed_caps);
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return transformed_caps;
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}
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static GstFlowReturn
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gst_mockdecryptor_transform_in_place (GstBaseTransform * base,
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GstBuffer * buffer)
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{
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/* We are a mock decryptor, just pass the encrypted buffers through... */
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return GST_FLOW_OK;
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}
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61
validate/gst/validate/gst-validate-mockdecryptor.h
Normal file
61
validate/gst/validate/gst-validate-mockdecryptor.h
Normal file
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@ -0,0 +1,61 @@
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/* GStreamer
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* Copyright (C) 2019 Igalia S.L
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* Copyright (C) 2019 Metrological
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* Author: Charlie Turner <cturner@igalia.com>
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Library General Public
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* License as published by the Free Software Foundation; either
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* version 2 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Library General Public License for more details.
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*
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* You should have received a copy of the GNU Library General Public
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* License along with this library; if not, write to the
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* Free Software Foundation, Inc., 51 Franklin St, Fifth Floor,
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* Boston, MA 02110-1301, USA.
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*/
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#ifndef __GST_MOCKDECRYPTOR_H__
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#define __GST_MOCKDECRYPTOR_H__
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typedef struct _GstMockDecryptor GstMockDecryptor;
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typedef struct _GstMockDecryptorClass GstMockDecryptorClass;
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#include <gst/gst.h>
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#include <gst/video/video.h>
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G_BEGIN_DECLS
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#define GST_TYPE_MOCKDECRYPTOR \
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(gst_mockdecryptor_get_type ())
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#define GST_MOCKDECRYPTOR(obj) \
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(G_TYPE_CHECK_INSTANCE_CAST((obj),GST_TYPE_MOCKDECRYPTOR,GstMockDecryptor))
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#define GST_MOCKDECRYPTOR_CLASS(klass) \
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(G_TYPE_CHECK_CLASS_CAST((klass),GST_TYPE_MOCKDECRYPTOR,GstMockDecryptorClass))
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#define GST_IS_MOCKDECRYPTOR(obj) \
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(G_TYPE_CHECK_INSTANCE_TYPE((obj),GST_TYPE_MOCKDECRYPTOR))
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#define GST_IS_MOCKDECRYPTOR_CLASS(klass) \
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(G_TYPE_CHECK_CLASS_TYPE((klass),GST_TYPE_MOCKDECRYPTOR))
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#define GST_MOCKDECRYPTOR_GET_CLASS(obj) \
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(G_TYPE_INSTANCE_GET_CLASS((obj),GST_TYPE_MOCKDECRYPTOR,GstMockDecryptorClass))
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#define GST_MOCKDECRYPTOR_NAME "mockdecryptor"
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struct _GstMockDecryptor
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{
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GstBaseTransform element;
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};
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struct _GstMockDecryptorClass
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{
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GstBaseTransformClass parent_class;
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};
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G_GNUC_INTERNAL GType gst_mockdecryptor_get_type (void);
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G_END_DECLS
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#endif /* __GST_MOCKDECRYPTOR_H__ */
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@ -36,6 +36,7 @@
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#include "gst-validate-override-registry.h"
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#include "gst-validate-runner.h"
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#include "gst-validate-reporter.h"
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#include "gst-validate-mockdecryptor.h"
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GST_DEBUG_CATEGORY_STATIC (gst_validate_runner_debug);
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#undef GST_CAT_DEFAULT
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@ -447,6 +448,9 @@ gst_validate_runner_init (GstValidateRunner * runner)
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gst_tracing_register_hook (GST_TRACER (runner), "element-new",
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G_CALLBACK (do_element_new));
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gst_element_register (NULL, GST_MOCKDECRYPTOR_NAME, GST_RANK_MARGINAL,
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GST_TYPE_MOCKDECRYPTOR);
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}
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/**
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@ -1,6 +1,7 @@
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gstvalidate_sources = [
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'gst-validate-runner.c',
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'gst-validate-reporter.c',
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'gst-validate-mockdecryptor.c',
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'gst-validate-monitor.c',
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'gst-validate-element-monitor.c',
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'gst-validate-bin-monitor.c',
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