mirror of
https://gitlab.freedesktop.org/gstreamer/gstreamer.git
synced 2024-12-29 19:50:40 +00:00
271 lines
9.1 KiB
C
271 lines
9.1 KiB
C
/* GStreamer
|
|
* Copyright (C) 2008-2009 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
|
|
* - Handle interlaced correctly, i.e. weave until we support one-field-per-buffer
|
|
*/
|
|
|
|
#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;
|
|
|
|
static gboolean
|
|
mxf_is_up_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;
|
|
/* 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,
|
|
MXFMetadataTimelineTrack * track,
|
|
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 (MXFMetadataTimelineTrack * track,
|
|
MXFMetadataRGBAPictureEssenceDescriptor * d, GstTagList ** tags,
|
|
MXFEssenceElementHandleFunc * 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;
|
|
}
|
|
|
|
static GstCaps *
|
|
mxf_up_create_caps (MXFMetadataTimelineTrack * track, GstTagList ** tags,
|
|
MXFEssenceElementHandleFunc * handler, gpointer * mapping_data)
|
|
{
|
|
MXFMetadataGenericPictureEssenceDescriptor *p = NULL;
|
|
MXFMetadataCDCIPictureEssenceDescriptor *c = NULL;
|
|
MXFMetadataRGBAPictureEssenceDescriptor *r = NULL;
|
|
guint i;
|
|
GstCaps *caps = NULL;
|
|
|
|
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 (!track->parent.descriptor[i])
|
|
continue;
|
|
|
|
if (MXF_IS_METADATA_RGBA_PICTURE_ESSENCE_DESCRIPTOR (track->
|
|
parent.descriptor[i])) {
|
|
p = (MXFMetadataGenericPictureEssenceDescriptor *) track->
|
|
parent.descriptor[i];
|
|
r = (MXFMetadataRGBAPictureEssenceDescriptor *) track->
|
|
parent.descriptor[i];
|
|
break;
|
|
} else if (MXF_IS_METADATA_CDCI_PICTURE_ESSENCE_DESCRIPTOR (track->parent.
|
|
descriptor[i])) {
|
|
p = (MXFMetadataGenericPictureEssenceDescriptor *) track->
|
|
parent.descriptor[i];
|
|
c = (MXFMetadataCDCIPictureEssenceDescriptor *) track->
|
|
parent.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 (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;
|
|
}
|
|
|
|
static const MXFEssenceElementHandler mxf_up_essence_element_handler = {
|
|
mxf_is_up_essence_track,
|
|
mxf_up_create_caps
|
|
};
|
|
|
|
void
|
|
mxf_up_init (void)
|
|
{
|
|
mxf_essence_element_handler_register (&mxf_up_essence_element_handler);
|
|
}
|