--- /dev/null
+/* GStreamer MXF Apple ProRes Mapping
+ * Copyright (C) 2019 Tim-Philipp Müller <tim@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 <gst/gst.h>
+#include <gst/video/video.h>
+#include <string.h>
+
+#include "mxfprores.h"
+#include "mxfessence.h"
+
+GST_DEBUG_CATEGORY_EXTERN (mxf_debug);
+#define GST_CAT_DEFAULT mxf_debug
+
+/* Implementation of SMPTE RDD 44:2017-11 "Material Exchange Format - Mapping
+ * and Application of Apple ProRes"
+ */
+static gboolean
+mxf_is_prores_essence_track (const MXFMetadataTimelineTrack * track)
+{
+ guint i;
+
+ g_return_val_if_fail (track != NULL, FALSE);
+
+ if (track->parent.descriptor == NULL)
+ return FALSE;
+
+ for (i = 0; i < track->parent.n_descriptor; i++) {
+ MXFMetadataFileDescriptor *d = track->parent.descriptor[i];
+ MXFUL *key;
+
+ if (!d)
+ continue;
+
+ key = &d->essence_container;
+ if (mxf_is_generic_container_essence_container_label (key) &&
+ key->u[12] == 0x02 && key->u[13] == 0x1C) {
+ return TRUE;
+ }
+ }
+
+ return FALSE;
+}
+
+static GstFlowReturn
+mxf_prores_handle_essence_element (const MXFUL * key, GstBuffer * buffer,
+ GstCaps * caps,
+ MXFMetadataTimelineTrack * track,
+ gpointer mapping_data, GstBuffer ** outbuf)
+{
+ *outbuf = buffer;
+
+ /* SMPTE RDD 41:2017-11 6.3 */
+ if (key->u[12] != 0x15 || key->u[14] != 0x17) {
+ GST_MEMDUMP ("Essence element", &key->u[0], 16);
+ GST_ERROR ("Invalid ProRes essence element");
+ return GST_FLOW_ERROR;
+ }
+
+ return GST_FLOW_OK;
+}
+
+static MXFEssenceWrapping
+mxf_prores_get_track_wrapping (const MXFMetadataTimelineTrack * track)
+{
+ guint i;
+
+ g_return_val_if_fail (track != NULL, MXF_ESSENCE_WRAPPING_CUSTOM_WRAPPING);
+
+ if (track->parent.descriptor == NULL) {
+ GST_ERROR ("No descriptor found for this track");
+ return MXF_ESSENCE_WRAPPING_CUSTOM_WRAPPING;
+ }
+
+ for (i = 0; i < track->parent.n_descriptor; i++) {
+ if (!track->parent.descriptor[i])
+ continue;
+
+ if (!MXF_IS_METADATA_GENERIC_PICTURE_ESSENCE_DESCRIPTOR (track->
+ parent.descriptor[i]))
+ continue;
+
+ /* sanity check */
+ if (track->parent.descriptor[i]->essence_container.u[13] != 0x1C)
+ return MXF_ESSENCE_WRAPPING_CUSTOM_WRAPPING;
+
+ switch (track->parent.descriptor[i]->essence_container.u[14]) {
+ case 0x01:
+ return MXF_ESSENCE_WRAPPING_FRAME_WRAPPING;
+ case 0x02:
+ return MXF_ESSENCE_WRAPPING_CLIP_WRAPPING;
+ default:
+ return MXF_ESSENCE_WRAPPING_CUSTOM_WRAPPING;
+ }
+ }
+
+ return MXF_ESSENCE_WRAPPING_CUSTOM_WRAPPING;
+}
+
+static GstCaps *
+mxf_prores_create_caps (MXFMetadataTimelineTrack * track, GstTagList ** tags,
+ gboolean * intra_only, MXFEssenceElementHandleFunc * handler,
+ gpointer * mapping_data)
+{
+ MXFMetadataGenericPictureEssenceDescriptor *d = NULL;
+ const gchar *variant;
+ GstCaps *caps;
+ guint i;
+
+ g_return_val_if_fail (track != NULL, NULL);
+
+ if (track->parent.descriptor == NULL) {
+ GST_ERROR ("No descriptor found for this track");
+ return NULL;
+ }
+
+ for (i = 0; i < track->parent.n_descriptor; i++) {
+ if (MXF_IS_METADATA_GENERIC_PICTURE_ESSENCE_DESCRIPTOR (track->
+ parent.descriptor[i])) {
+ d = MXF_METADATA_GENERIC_PICTURE_ESSENCE_DESCRIPTOR (track->
+ parent.descriptor[i]);
+ break;
+ }
+ }
+
+ if (d == NULL) {
+ GST_ERROR ("No picture essence coding descriptor found for this track");
+ return NULL;
+ }
+
+ if (d->picture_essence_coding.u[13] != 0x06) {
+ GST_MEMDUMP ("Picture essence", &d->picture_essence_coding.u[0], 16);
+ GST_ERROR ("Picture essence coding descriptor not for ProRes?!");
+ return NULL;
+ }
+
+ GST_INFO ("Found Apple ProRes video stream");
+
+ switch (d->picture_essence_coding.u[14]) {
+ case 0x01:
+ variant = "proxy";
+ break;
+ case 0x02:
+ variant = "lt";
+ break;
+ case 0x03:
+ variant = "standard";
+ break;
+ case 0x04:
+ variant = "hq";
+ break;
+ case 0x05:
+ variant = "4444";
+ break;
+ case 0x06:
+ variant = "4444xq";
+ break;
+ default:
+ GST_ERROR ("Unknown ProRes profile %2d", d->picture_essence_coding.u[14]);
+ return NULL;
+ }
+
+ *handler = mxf_prores_handle_essence_element;
+
+ caps = gst_caps_new_simple ("video/x-prores",
+ "variant", G_TYPE_STRING, variant, NULL);
+
+ if (d)
+ mxf_metadata_generic_picture_essence_descriptor_set_caps (d, caps);
+
+ if (!*tags)
+ *tags = gst_tag_list_new_empty ();
+
+ gst_tag_list_add (*tags, GST_TAG_MERGE_APPEND, GST_TAG_CODEC, "Apple ProRes",
+ NULL);
+
+ *intra_only = TRUE;
+
+ return caps;
+}
+
+static const MXFEssenceElementHandler mxf_prores_essence_element_handler = {
+ mxf_is_prores_essence_track,
+ mxf_prores_get_track_wrapping,
+ mxf_prores_create_caps
+};
+
+void
+mxf_prores_init (void)
+{
+ mxf_essence_element_handler_register (&mxf_prores_essence_element_handler);
+}
--- /dev/null
+/* GStreamer MXF Apple ProRes Mapping
+ * Copyright (C) 2019 Tim-Philipp Müller <tim@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.
+ */
+#ifndef __MXF_PRORES_H__
+#define __MXF_PRORES_H__
+
+#include <gst/gst.h>
+
+void mxf_prores_init (void);
+
+#endif /* __MXF_PRORES_H__ */