gstreamer/subprojects/gst-plugins-bad/gst/mxf/mxfcustom.c
Edward Hervey 3768ef89b9 mxf: simplify essence track matching
By directly providing a valid descriptor to match against

Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/3899>
2023-02-10 10:02:25 +01:00

96 lines
2.6 KiB
C

/* GStreamer
* Copyright (C) 2022 Edward Hervey <edward@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.
*/
/* Custom mappings
*/
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
#include <gst/gst.h>
#include <gst/base/base.h>
#include <gst/video/video.h>
#include <string.h>
#include "mxfcustom.h"
#include "mxfessence.h"
GST_DEBUG_CATEGORY_EXTERN (mxf_debug);
#define GST_CAT_DEFAULT mxf_debug
/* Custom Canon XF-HEVC essence */
static const MXFUL mxf_canon_xf_hevc = { {0x06, 0x0E, 0x2B, 0x34,
0x04, 0x01, 0x01, 0x0c,
0x0e, 0x15, 0x00, 0x04,
0x02, 0x10, 0x00, 0x01}
};
static gboolean
mxf_is_canon_xfhevc_essence_track (const MXFMetadataFileDescriptor * d)
{
return mxf_ul_is_equal (&d->essence_container, &mxf_canon_xf_hevc);
}
static GstFlowReturn
mxf_canon_xfhevc_handle_essence_element (const MXFUL * key, GstBuffer * buffer,
GstCaps * caps,
MXFMetadataTimelineTrack * track,
gpointer mapping_data, GstBuffer ** outbuf)
{
*outbuf = buffer;
/* Blindly accept it */
return GST_FLOW_OK;
}
static MXFEssenceWrapping
mxf_canon_xfhevc_get_track_wrapping (const MXFMetadataTimelineTrack * track)
{
/* Assume it's always frame wrapping */
return MXF_ESSENCE_WRAPPING_FRAME_WRAPPING;
}
static GstCaps *
mxf_canon_xfhevc_create_caps (MXFMetadataTimelineTrack * track,
GstTagList ** tags, gboolean * intra_only,
MXFEssenceElementHandleFunc * handler, gpointer * mapping_data)
{
GstCaps *caps = NULL;
g_return_val_if_fail (track != NULL, NULL);
*handler = mxf_canon_xfhevc_handle_essence_element;
*intra_only = TRUE;
caps = gst_caps_from_string ("video/x-h265");
return caps;
}
static const MXFEssenceElementHandler mxf_canon_xfhevc_essence_element_handler = {
mxf_is_canon_xfhevc_essence_track,
mxf_canon_xfhevc_get_track_wrapping,
mxf_canon_xfhevc_create_caps
};
void
mxf_custom_init (void)
{
mxf_essence_element_handler_register
(&mxf_canon_xfhevc_essence_element_handler);
}