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gstreamer/gst/mxf/mxfup.c
Sebastian Dröge c94b1bd2de gst/mxf/: Major update of the TODO lists. There's still much to do. 
Original commit message from CVS:
* gst/mxf/mxfaes-bwf.c:
* gst/mxf/mxfalaw.c: (mxf_alaw_create_caps):
* gst/mxf/mxfdemux.c:
* gst/mxf/mxfdv-dif.c: (mxf_dv_dif_create_caps):
* gst/mxf/mxfjpeg2000.c:
* gst/mxf/mxfmpeg.c:
* gst/mxf/mxfup.c:
Major update of the TODO lists. There's still much to do.
2008-12-12 10:29:31 +00:00

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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
* - Handle more formats with RGBA descriptor (4:4:4 / 4:4:4:4 YUV, RGB656, ...)
* - Correctly transform for the GStreamer strides
* - Handle all the dimensions and other properties in the picture
* essence descriptors correctly according to S377M Annex E
*/
#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
typedef struct
{
guint32 image_start_offset;
guint32 image_end_offset;
} MXFUPMappingData;
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)
{
MXFUPMappingData *data = mapping_data;
/* 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;
}
if (!data || (data->image_start_offset == 0 && data->image_end_offset == 0)) {
*outbuf = buffer;
} else {
if (data->image_start_offset + data->image_end_offset
> GST_BUFFER_SIZE (buffer)) {
gst_buffer_unref (buffer);
GST_ERROR ("Invalid buffer size");
return GST_FLOW_ERROR;
} else {
GST_BUFFER_DATA (buffer) += data->image_start_offset;
GST_BUFFER_SIZE (buffer) -= data->image_start_offset;
GST_BUFFER_SIZE (buffer) -= data->image_end_offset;
*outbuf = buffer;
}
}
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;
}
if (caps) {
MXFUPMappingData *data = g_new0 (MXFUPMappingData, 1);
data->image_start_offset =
((MXFMetadataGenericPictureEssenceDescriptor *) d)->image_start_offset;
data->image_end_offset =
((MXFMetadataGenericPictureEssenceDescriptor *) d)->image_end_offset;
*mapping_data = data;
}
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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