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gst/mxf/: Add support for VC-3 (aka DNxHD essence, see SMPTE 2019-4).
Original commit message from CVS: * gst/mxf/Makefile.am: * gst/mxf/mxf.c: (plugin_init): * gst/mxf/mxfvc3.c: (mxf_is_vc3_essence_track), (mxf_vc3_handle_essence_element), (mxf_vc3_create_caps), (mxf_vc3_init): * gst/mxf/mxfvc3.h: Add support for VC-3 (aka DNxHD essence, see SMPTE 2019-4). This is untested because of lack of sample files but should work fine.
This commit is contained in:
Sebastian Dröge
parent
59c80c9a40
commit
ecc0e9221f
5 changed files with 195 additions and 0 deletions
12
ChangeLog
12
ChangeLog
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@ -1,3 +1,15 @@
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2008-12-18 Sebastian Dröge <sebastian.droege@collabora.co.uk>
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* gst/mxf/Makefile.am:
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* gst/mxf/mxf.c: (plugin_init):
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* gst/mxf/mxfvc3.c: (mxf_is_vc3_essence_track),
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(mxf_vc3_handle_essence_element), (mxf_vc3_create_caps),
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(mxf_vc3_init):
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* gst/mxf/mxfvc3.h:
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Add support for VC-3 (aka DNxHD essence, see SMPTE 2019-4).
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This is untested because of lack of sample files but should
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work fine.
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2008-12-17 Wim Taymans <wim.taymans@collabora.co.uk>
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* docs/plugins/Makefile.am:
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@ -11,6 +11,7 @@ libgstmxf_la_SOURCES = \
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mxfjpeg2000.c \
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mxfd10.c \
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mxfup.c \
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mxfvc3.c \
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mxfmetadata.c
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libgstmxf_la_CFLAGS = $(GST_CFLAGS) $(GST_BASE_CFLAGS) $(GST_PLUGINS_BASE_CFLAGS)
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@ -28,6 +29,7 @@ noinst_HEADERS = \
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mxfjpeg2000.h \
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mxfd10.h \
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mxfup.h \
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mxfvc3.h \
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mxftypes.h \
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mxfmetadata.h
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@ -31,6 +31,7 @@
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#include "mxfjpeg2000.h"
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#include "mxfd10.h"
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#include "mxfup.h"
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#include "mxfvc3.h"
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GST_DEBUG_CATEGORY (mxf_debug);
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#define GST_CAT_DEFAULT mxf_debug
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@ -46,6 +47,7 @@ plugin_init (GstPlugin * plugin)
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mxf_jpeg2000_init ();
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mxf_d10_init ();
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mxf_up_init ();
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mxf_vc3_init ();
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if (!gst_element_register (plugin, "mxfdemux", GST_RANK_PRIMARY,
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GST_TYPE_MXF_DEMUX))
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146
gst/mxf/mxfvc3.c
Normal file
146
gst/mxf/mxfvc3.c
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@ -0,0 +1,146 @@
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/* GStreamer
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* Copyright (C) 2008 Sebastian Dröge <sebastian.droege@collabora.co.uk>
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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., 59 Temple Place - Suite 330,
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* Boston, MA 02111-1307, USA.
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*/
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/* Implementation of SMPTE S2019-4 - Mapping VC-3 coding units into the MXF
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* Generic Container
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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/gst.h>
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#include <string.h>
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#include "mxfvc3.h"
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GST_DEBUG_CATEGORY_EXTERN (mxf_debug);
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#define GST_CAT_DEFAULT mxf_debug
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static gboolean
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mxf_is_vc3_essence_track (const MXFMetadataTimelineTrack * track)
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{
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guint i;
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g_return_val_if_fail (track != NULL, FALSE);
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if (track->parent.descriptor == NULL)
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return FALSE;
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for (i = 0; i < track->parent.n_descriptor; i++) {
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MXFMetadataFileDescriptor *d = track->parent.descriptor[i];
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MXFUL *key;
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if (!d)
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continue;
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key = &d->essence_container;
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/* SMPTE S2019-4 7 */
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if (mxf_is_generic_container_essence_container_label (key) &&
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key->u[12] == 0x02 && key->u[13] == 0x11 &&
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(key->u[14] == 0x01 || key->u[14] == 0x02))
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return TRUE;
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}
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return FALSE;
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}
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static GstFlowReturn
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mxf_vc3_handle_essence_element (const MXFUL * key, GstBuffer * buffer,
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GstCaps * caps,
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MXFMetadataTimelineTrack * track,
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MXFMetadataStructuralComponent * component, gpointer mapping_data,
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GstBuffer ** outbuf)
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{
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*outbuf = buffer;
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/* SMPTE 2019-4 6.1 */
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if (key->u[12] != 0x15 || (key->u[14] != 0x05 && key->u[14] != 0x06)) {
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GST_ERROR ("Invalid VC-3 essence element");
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return GST_FLOW_ERROR;
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}
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return GST_FLOW_OK;
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}
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static GstCaps *
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mxf_vc3_create_caps (MXFMetadataTimelineTrack * track, GstTagList ** tags,
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MXFEssenceElementHandleFunc * handler, gpointer * mapping_data)
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{
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MXFMetadataFileDescriptor *f = NULL;
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MXFMetadataGenericPictureEssenceDescriptor *p = NULL;
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guint i;
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GstCaps *caps = NULL;
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g_return_val_if_fail (track != NULL, NULL);
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if (track->parent.descriptor == NULL) {
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GST_ERROR ("No descriptor found for this track");
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return NULL;
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}
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for (i = 0; i < track->parent.n_descriptor; i++) {
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if (!track->parent.descriptor[i])
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continue;
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if (MXF_IS_METADATA_GENERIC_PICTURE_ESSENCE_DESCRIPTOR (track->parent.
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descriptor[i])) {
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p = (MXFMetadataGenericPictureEssenceDescriptor *) track->
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parent.descriptor[i];
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f = track->parent.descriptor[i];
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break;
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} else if (MXF_IS_METADATA_FILE_DESCRIPTOR (track->parent.descriptor[i]) &&
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!MXF_IS_METADATA_MULTIPLE_DESCRIPTOR (track->parent.descriptor[i])) {
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f = track->parent.descriptor[i];
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}
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}
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if (!f) {
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GST_ERROR ("No descriptor found for this track");
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return NULL;
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}
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*handler = mxf_vc3_handle_essence_element;
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caps = gst_caps_new_simple ("video/x-dnxhd", NULL);
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if (p) {
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mxf_metadata_generic_picture_essence_descriptor_set_caps (p, caps);
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} else {
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GST_WARNING ("Only a generic file descriptor found");
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}
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if (!*tags)
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*tags = gst_tag_list_new ();
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gst_tag_list_add (*tags, GST_TAG_MERGE_APPEND, GST_TAG_VIDEO_CODEC,
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"VC-3 Video", NULL);
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return caps;
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}
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static const MXFEssenceElementHandler mxf_vc3_essence_element_handler = {
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mxf_is_vc3_essence_track,
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mxf_vc3_create_caps
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};
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void
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mxf_vc3_init (void)
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{
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mxf_essence_element_handler_register (&mxf_vc3_essence_element_handler);
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}
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33
gst/mxf/mxfvc3.h
Normal file
33
gst/mxf/mxfvc3.h
Normal file
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@ -0,0 +1,33 @@
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/* GStreamer
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* Copyright (C) 2008 Sebastian Dröge <sebastian.droege@collabora.co.uk>
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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., 59 Temple Place - Suite 330,
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* Boston, MA 02111-1307, USA.
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*/
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/* Implementation of SMPTE S2019-4 - Mapping VC-3 coding units into the MXF
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* Generic Container
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*/
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#ifndef __MXF_VC3_H__
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#define __MXF_VC3_H__
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#include <gst/gst.h>
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#include "mxfparse.h"
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void mxf_vc3_init (void);
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#endif /* __MXF_VC3_H__ */
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