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-rw-r--r--gst/mxf/mxfup.c216
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diff --git a/gst/mxf/mxfup.c b/gst/mxf/mxfup.c
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+/* GStreamer
+ * Copyright (C) 2008 Sebastian Dröge <sebastian.droege@collabora.co.uk>
+ *
+ * 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., 59 Temple Place - Suite 330,
+ * Boston, MA 02111-1307, USA.
+ */
+
+/* Implementation of SMPTE 384M - Mapping of Uncompressed Pictures into the MXF
+ * Generic Container
+ */
+
+/* TODO:
+ * - Handle CDCI essence
+ * - Correctly transform for the GStreamer strides
+ */
+
+#ifdef HAVE_CONFIG_H
+#include "config.h"
+#endif
+
+#include <gst/gst.h>
+#include <string.h>
+
+#include <gst/video/video.h>
+
+#include "mxfup.h"
+
+GST_DEBUG_CATEGORY_EXTERN (mxf_debug);
+#define GST_CAT_DEFAULT mxf_debug
+
+gboolean
+mxf_is_up_essence_track (const MXFMetadataTrack * track)
+{
+ guint i;
+
+ g_return_val_if_fail (track != NULL, FALSE);
+
+ if (track->descriptor == NULL)
+ return FALSE;
+
+ for (i = 0; i < track->n_descriptor; i++) {
+ MXFMetadataFileDescriptor *d = track->descriptor[i];
+ MXFUL *key = &d->essence_container;
+ /* SMPTE 384M 8 */
+ if (mxf_is_generic_container_essence_container_label (key) &&
+ key->u[12] == 0x02 && key->u[13] == 0x05 && key->u[15] <= 0x03)
+ return TRUE;
+ }
+
+ return FALSE;
+}
+
+static GstFlowReturn
+mxf_up_handle_essence_element (const MXFUL * key, GstBuffer * buffer,
+ GstCaps * caps, MXFMetadataGenericPackage * package,
+ MXFMetadataTrack * track, MXFMetadataStructuralComponent * component,
+ gpointer mapping_data, GstBuffer ** outbuf)
+{
+ *outbuf = buffer;
+
+ /* SMPTE 384M 7.1 */
+ if (key->u[12] != 0x15 || (key->u[14] != 0x01 && key->u[14] != 0x02
+ && key->u[14] != 0x03 && key->u[14] != 0x04)) {
+ GST_ERROR ("Invalid uncompressed picture essence element");
+ return GST_FLOW_ERROR;
+ }
+
+ return GST_FLOW_OK;
+}
+
+static GstCaps *
+mxf_up_rgba_create_caps (MXFMetadataGenericPackage * package,
+ MXFMetadataTrack * track, MXFMetadataRGBAPictureEssenceDescriptor * d,
+ GstTagList ** tags,
+ MXFEssenceElementHandler * handler, gpointer * mapping_data)
+{
+ GstCaps *caps = NULL;
+
+ if (!d->pixel_layout) {
+ GST_ERROR ("No pixel layout");
+ return NULL;
+ }
+
+ if (d->n_pixel_layout == 3) {
+ if (d->pixel_layout[0] == 'R' && d->pixel_layout[2] == 'G'
+ && d->pixel_layout[4] == 'B' && d->pixel_layout[1] == 8
+ && d->pixel_layout[3] == 8 && d->pixel_layout[5] == 8) {
+ caps = gst_caps_from_string (GST_VIDEO_CAPS_RGB);
+ } else if (d->pixel_layout[0] == 'B' && d->pixel_layout[2] == 'G'
+ && d->pixel_layout[4] == 'R' && d->pixel_layout[1] == 8
+ && d->pixel_layout[3] == 8 && d->pixel_layout[5] == 8) {
+ caps = gst_caps_from_string (GST_VIDEO_CAPS_BGR);
+ } else {
+ GST_ERROR ("Unsupport 3 component pixel layout");
+ return NULL;
+ }
+ } else if (d->n_pixel_layout == 4) {
+ if (d->pixel_layout[0] == 'R' && d->pixel_layout[2] == 'G'
+ && d->pixel_layout[4] == 'B' && d->pixel_layout[6] == 'F'
+ && d->pixel_layout[1] == 8 && d->pixel_layout[3] == 8
+ && d->pixel_layout[5] == 8 && d->pixel_layout[7] == 8) {
+ caps = gst_caps_from_string (GST_VIDEO_CAPS_RGBx);
+ } else if (d->pixel_layout[0] == 'B' && d->pixel_layout[2] == 'G'
+ && d->pixel_layout[4] == 'R' && d->pixel_layout[6] == 'F'
+ && d->pixel_layout[1] == 8 && d->pixel_layout[3] == 8
+ && d->pixel_layout[5] == 8 && d->pixel_layout[7] == 8) {
+ caps = gst_caps_from_string (GST_VIDEO_CAPS_BGRx);
+ } else if (d->pixel_layout[0] == 'F' && d->pixel_layout[2] == 'R'
+ && d->pixel_layout[4] == 'G' && d->pixel_layout[6] == 'B'
+ && d->pixel_layout[1] == 8 && d->pixel_layout[3] == 8
+ && d->pixel_layout[5] == 8 && d->pixel_layout[7] == 8) {
+ caps = gst_caps_from_string (GST_VIDEO_CAPS_xRGB);
+ } else if (d->pixel_layout[0] == 'F' && d->pixel_layout[2] == 'B'
+ && d->pixel_layout[4] == 'G' && d->pixel_layout[6] == 'R'
+ && d->pixel_layout[1] == 8 && d->pixel_layout[3] == 8
+ && d->pixel_layout[5] == 8 && d->pixel_layout[7] == 8) {
+ caps = gst_caps_from_string (GST_VIDEO_CAPS_xBGR);
+ } else if (d->pixel_layout[0] == 'A' && d->pixel_layout[2] == 'R'
+ && d->pixel_layout[4] == 'G' && d->pixel_layout[6] == 'B'
+ && d->pixel_layout[1] == 8 && d->pixel_layout[3] == 8
+ && d->pixel_layout[5] == 8 && d->pixel_layout[7] == 8) {
+ caps = gst_caps_from_string (GST_VIDEO_CAPS_ARGB);
+ } else if (d->pixel_layout[0] == 'A' && d->pixel_layout[2] == 'B'
+ && d->pixel_layout[4] == 'G' && d->pixel_layout[6] == 'R'
+ && d->pixel_layout[1] == 8 && d->pixel_layout[3] == 8
+ && d->pixel_layout[5] == 8 && d->pixel_layout[7] == 8) {
+ caps = gst_caps_from_string (GST_VIDEO_CAPS_ABGR);
+ } else if (d->pixel_layout[0] == 'R' && d->pixel_layout[2] == 'G'
+ && d->pixel_layout[4] == 'B' && d->pixel_layout[6] == 'A'
+ && d->pixel_layout[1] == 8 && d->pixel_layout[3] == 8
+ && d->pixel_layout[5] == 8 && d->pixel_layout[7] == 8) {
+ caps = gst_caps_from_string (GST_VIDEO_CAPS_RGBA);
+ } else if (d->pixel_layout[0] == 'B' && d->pixel_layout[2] == 'G'
+ && d->pixel_layout[4] == 'R' && d->pixel_layout[6] == 'A'
+ && d->pixel_layout[1] == 8 && d->pixel_layout[3] == 8
+ && d->pixel_layout[5] == 8 && d->pixel_layout[7] == 8) {
+ caps = gst_caps_from_string (GST_VIDEO_CAPS_BGRA);
+ } else {
+ GST_ERROR ("Unsupport 4 component pixel layout");
+ return NULL;
+ }
+ } else {
+ GST_ERROR ("Pixel layouts with %u components not supported yet",
+ d->n_pixel_layout);
+ return NULL;
+ }
+
+ return caps;
+}
+
+GstCaps *
+mxf_up_create_caps (MXFMetadataGenericPackage * package,
+ MXFMetadataTrack * track, GstTagList ** tags,
+ MXFEssenceElementHandler * handler, gpointer * mapping_data)
+{
+ MXFMetadataGenericPictureEssenceDescriptor *p = NULL;
+ MXFMetadataCDCIPictureEssenceDescriptor *c = NULL;
+ MXFMetadataRGBAPictureEssenceDescriptor *r = NULL;
+ guint i;
+ GstCaps *caps = NULL;
+
+ g_return_val_if_fail (package != NULL, NULL);
+ g_return_val_if_fail (track != NULL, NULL);
+
+ if (track->descriptor == NULL) {
+ GST_ERROR ("No descriptor found for this track");
+ return NULL;
+ }
+
+ for (i = 0; i < track->n_descriptor; i++) {
+ if (((MXFMetadataGenericDescriptor *) track->descriptor[i])->type ==
+ MXF_METADATA_RGBA_PICTURE_ESSENCE_DESCRIPTOR) {
+ p = (MXFMetadataGenericPictureEssenceDescriptor *) track->descriptor[i];
+ r = (MXFMetadataRGBAPictureEssenceDescriptor *) track->descriptor[i];
+ break;
+ } else if (((MXFMetadataGenericDescriptor *) track->descriptor[i])->type ==
+ MXF_METADATA_CDCI_PICTURE_ESSENCE_DESCRIPTOR) {
+ p = (MXFMetadataGenericPictureEssenceDescriptor *) track->descriptor[i];
+ c = (MXFMetadataCDCIPictureEssenceDescriptor *) track->descriptor[i];
+ }
+ }
+
+ if (!p) {
+ GST_ERROR ("No picture essence descriptor found for this track");
+ return NULL;
+ }
+
+ *handler = mxf_up_handle_essence_element;
+
+ if (r) {
+ caps =
+ mxf_up_rgba_create_caps (package, track, r, tags, handler,
+ mapping_data);
+ } else {
+ GST_ERROR ("CDCI uncompressed picture essence not supported yet");
+ return NULL;
+ }
+
+ if (caps) {
+ mxf_metadata_generic_picture_essence_descriptor_set_caps (p, caps);
+ }
+
+ return caps;
+}
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