2 * Copyright (C) 2008-2009 Sebastian Dröge <sebastian.droege@collabora.co.uk>
4 * This library is free software; you can redistribute it and/or
5 * modify it under the terms of the GNU Library General Public
6 * License as published by the Free Software Foundation; either
7 * version 2 of the License, or (at your option) any later version.
9 * This library is distributed in the hope that it will be useful,
10 * but WITHOUT ANY WARRANTY; without even the implied warranty of
11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
12 * Library General Public License for more details.
14 * You should have received a copy of the GNU Library General Public
15 * License along with this library; if not, write to the
16 * Free Software Foundation, Inc., 51 Franklin St, Fifth Floor,
17 * Boston, MA 02110-1301, USA.
20 /* Implementation of SMPTE 384M - Mapping of Uncompressed Pictures into the MXF
25 * - Handle CDCI essence
26 * - Handle more formats with RGBA descriptor (4:4:4 / 4:4:4:4 YUV, RGB656, ...)
27 * - Handle all the dimensions and other properties in the picture
28 * essence descriptors correctly according to S377M Annex E
29 * - Handle interlaced correctly, i.e. weave until we support one-field-per-buffer
39 #include <gst/video/video.h>
42 #include "mxfessence.h"
44 GST_DEBUG_CATEGORY_EXTERN (mxf_debug);
45 #define GST_CAT_DEFAULT mxf_debug
50 guint32 n_pixel_layout;
51 guint8 pixel_layout[10];
52 const gchar *caps_string;
53 } _rgba_mapping_table[] = {
56 'R', 8, 'G', 8, 'B', 8}, GST_VIDEO_CAPS_MAKE ("RGB")}, {
58 'B', 8, 'G', 8, 'R', 8}, GST_VIDEO_CAPS_MAKE ("BGR")}, {
60 'Y', 8, 'U', 8, 'V', 8}, GST_VIDEO_CAPS_MAKE ("v308")}, {
62 'F', 8, 'R', 8, 'G', 8, 'B', 8}, GST_VIDEO_CAPS_MAKE ("xRGB")}, {
64 'R', 8, 'G', 8, 'B', 8, 'F', 8}, GST_VIDEO_CAPS_MAKE ("RGBx")}, {
66 'F', 8, 'B', 8, 'G', 8, 'R', 8}, GST_VIDEO_CAPS_MAKE ("xBGR")}, {
68 'B', 8, 'G', 8, 'R', 8, 'F', 8}, GST_VIDEO_CAPS_MAKE ("BGRx")}, {
70 'R', 8, 'G', 8, 'B', 8, 'A', 8}, GST_VIDEO_CAPS_MAKE ("RGBA")}, {
72 'A', 8, 'R', 8, 'G', 8, 'B', 8}, GST_VIDEO_CAPS_MAKE ("RGBA")}, {
74 'B', 8, 'G', 8, 'R', 8, 'A', 8}, GST_VIDEO_CAPS_MAKE ("BGRA")}, {
76 'A', 8, 'B', 8, 'G', 8, 'R', 8}, GST_VIDEO_CAPS_MAKE ("ABGR")}, {
78 'A', 8, 'Y', 8, 'U', 8, 'V', 8}, GST_VIDEO_CAPS_MAKE ("AYUV")}
85 guint horizontal_subsampling;
86 guint vertical_subsampling;
87 gboolean reversed_byte_order;
88 const gchar *caps_string;
89 } _cdci_mapping_table[] = {
91 "YUY2", 2, 1, 0, TRUE, GST_VIDEO_CAPS_MAKE ("YUY2")}, {
92 "UYVY", 2, 1, 0, FALSE, GST_VIDEO_CAPS_MAKE ("UYVY")},};
96 const gchar *format; /* video format string */
99 guint32 image_start_offset;
100 guint32 image_end_offset;
104 mxf_is_up_essence_track (const MXFMetadataTimelineTrack * track)
108 g_return_val_if_fail (track != NULL, FALSE);
110 if (track->parent.descriptor == NULL)
113 for (i = 0; i < track->parent.n_descriptor; i++) {
114 MXFMetadataFileDescriptor *d = track->parent.descriptor[i];
120 key = &d->essence_container;
122 if (mxf_is_generic_container_essence_container_label (key) &&
123 key->u[12] == 0x02 && key->u[13] == 0x05 && key->u[15] <= 0x03)
131 mxf_up_handle_essence_element (const MXFUL * key, GstBuffer * buffer,
133 MXFMetadataTimelineTrack * track,
134 gpointer mapping_data, GstBuffer ** outbuf)
136 MXFUPMappingData *data = mapping_data;
139 if (key->u[12] != 0x15 || (key->u[14] != 0x01 && key->u[14] != 0x02
140 && key->u[14] != 0x03 && key->u[14] != 0x04)) {
141 GST_ERROR ("Invalid uncompressed picture essence element");
142 gst_buffer_unref (buffer);
143 return GST_FLOW_ERROR;
147 GST_ERROR ("Invalid mapping data");
148 gst_buffer_unref (buffer);
149 return GST_FLOW_ERROR;
152 if (data->image_start_offset == 0 && data->image_end_offset == 0) {
154 if (data->image_start_offset + data->image_end_offset
155 > gst_buffer_get_size (buffer)) {
156 gst_buffer_unref (buffer);
157 GST_ERROR ("Invalid buffer size");
158 return GST_FLOW_ERROR;
160 gst_buffer_resize (buffer, data->image_start_offset,
161 data->image_end_offset - data->image_start_offset);
165 if (gst_buffer_get_size (buffer) != data->bpp * data->width * data->height) {
166 GST_ERROR ("Invalid buffer size");
167 gst_buffer_unref (buffer);
168 return GST_FLOW_ERROR;
172 || GST_ROUND_UP_4 (data->width * data->bpp) != data->width * data->bpp) {
175 GstMapInfo inmap, outmap;
176 guint8 *indata, *outdata;
179 gst_buffer_new_and_alloc (GST_ROUND_UP_4 (data->width * data->bpp) *
181 gst_buffer_map (buffer, &inmap, GST_MAP_READ);
182 gst_buffer_map (ret, &outmap, GST_MAP_WRITE);
184 outdata = outmap.data;
186 for (y = 0; y < data->height; y++) {
187 memcpy (outdata, indata, data->width * data->bpp);
188 outdata += GST_ROUND_UP_4 (data->width * data->bpp);
189 indata += data->width * data->bpp;
192 gst_buffer_unmap (buffer, &inmap);
193 gst_buffer_unmap (ret, &outmap);
195 gst_buffer_unref (buffer);
204 static MXFEssenceWrapping
205 mxf_up_get_track_wrapping (const MXFMetadataTimelineTrack * track)
209 g_return_val_if_fail (track != NULL, MXF_ESSENCE_WRAPPING_CUSTOM_WRAPPING);
211 if (track->parent.descriptor == NULL) {
212 GST_ERROR ("No descriptor found for this track");
213 return MXF_ESSENCE_WRAPPING_CUSTOM_WRAPPING;
216 for (i = 0; i < track->parent.n_descriptor; i++) {
217 if (!track->parent.descriptor[i])
220 if (!MXF_IS_METADATA_GENERIC_PICTURE_ESSENCE_DESCRIPTOR (track->
221 parent.descriptor[i]))
224 switch (track->parent.descriptor[i]->essence_container.u[15]) {
226 return MXF_ESSENCE_WRAPPING_FRAME_WRAPPING;
229 return MXF_ESSENCE_WRAPPING_CLIP_WRAPPING;
232 return MXF_ESSENCE_WRAPPING_CUSTOM_WRAPPING;
237 return MXF_ESSENCE_WRAPPING_CUSTOM_WRAPPING;
241 mxf_up_rgba_create_caps (MXFMetadataTimelineTrack * track,
242 MXFMetadataRGBAPictureEssenceDescriptor * d, GstTagList ** tags,
243 MXFEssenceElementHandleFunc * handler, gpointer * mapping_data)
245 GstCaps *caps = NULL;
247 const gchar *format = NULL;
250 if (!d->pixel_layout) {
251 GST_ERROR ("No pixel layout");
255 for (i = 0; i < G_N_ELEMENTS (_rgba_mapping_table); i++) {
256 if (d->n_pixel_layout != _rgba_mapping_table[i].n_pixel_layout)
259 if (memcmp (d->pixel_layout, &_rgba_mapping_table[i].pixel_layout,
260 _rgba_mapping_table[i].n_pixel_layout * 2) == 0) {
261 caps = gst_caps_from_string (_rgba_mapping_table[i].caps_string);
262 format = _rgba_mapping_table[i].format;
263 bpp = _rgba_mapping_table[i].n_pixel_layout;
269 MXFUPMappingData *data = g_new0 (MXFUPMappingData, 1);
271 mxf_metadata_generic_picture_essence_descriptor_set_caps (&d->parent, caps);
273 data->width = d->parent.stored_width;
274 data->height = d->parent.stored_height;
275 data->format = format;
277 data->image_start_offset =
278 ((MXFMetadataGenericPictureEssenceDescriptor *) d)->image_start_offset;
279 data->image_end_offset =
280 ((MXFMetadataGenericPictureEssenceDescriptor *) d)->image_end_offset;
282 *mapping_data = data;
284 GST_WARNING ("Unsupported pixel layout");
291 mxf_up_cdci_create_caps (MXFMetadataTimelineTrack * track,
292 MXFMetadataCDCIPictureEssenceDescriptor * d, GstTagList ** tags,
293 MXFEssenceElementHandleFunc * handler, gpointer * mapping_data)
295 GstCaps *caps = NULL;
300 for (i = 0; i < G_N_ELEMENTS (_cdci_mapping_table); i++) {
301 if (_cdci_mapping_table[i].horizontal_subsampling ==
302 d->horizontal_subsampling
303 && _cdci_mapping_table[i].vertical_subsampling ==
304 d->vertical_subsampling
305 && _cdci_mapping_table[i].reversed_byte_order ==
306 d->reversed_byte_order) {
307 caps = gst_caps_from_string (_cdci_mapping_table[i].caps_string);
308 format = _cdci_mapping_table[i].format;
309 bpp = _cdci_mapping_table[i].bpp;
315 MXFUPMappingData *data = g_new0 (MXFUPMappingData, 1);
317 mxf_metadata_generic_picture_essence_descriptor_set_caps (&d->parent, caps);
319 data->width = d->parent.stored_width;
320 data->height = d->parent.stored_height;
321 data->format = format;
323 data->image_start_offset =
324 ((MXFMetadataGenericPictureEssenceDescriptor *) d)->image_start_offset;
325 data->image_end_offset =
326 ((MXFMetadataGenericPictureEssenceDescriptor *) d)->image_end_offset;
328 *mapping_data = data;
330 GST_WARNING ("Unsupported CDCI format");
337 mxf_up_create_caps (MXFMetadataTimelineTrack * track, GstTagList ** tags,
338 MXFEssenceElementHandleFunc * handler, gpointer * mapping_data)
340 MXFMetadataGenericPictureEssenceDescriptor *p = NULL;
341 MXFMetadataCDCIPictureEssenceDescriptor *c = NULL;
342 MXFMetadataRGBAPictureEssenceDescriptor *r = NULL;
344 GstCaps *caps = NULL;
346 g_return_val_if_fail (track != NULL, NULL);
348 if (track->parent.descriptor == NULL) {
349 GST_ERROR ("No descriptor found for this track");
353 for (i = 0; i < track->parent.n_descriptor; i++) {
354 if (!track->parent.descriptor[i])
357 if (MXF_IS_METADATA_RGBA_PICTURE_ESSENCE_DESCRIPTOR (track->parent.
359 p = (MXFMetadataGenericPictureEssenceDescriptor *) track->parent.
361 r = (MXFMetadataRGBAPictureEssenceDescriptor *) track->parent.
364 } else if (MXF_IS_METADATA_CDCI_PICTURE_ESSENCE_DESCRIPTOR (track->
365 parent.descriptor[i])) {
366 p = (MXFMetadataGenericPictureEssenceDescriptor *) track->parent.
368 c = (MXFMetadataCDCIPictureEssenceDescriptor *) track->parent.
374 GST_ERROR ("No picture essence descriptor found for this track");
378 *handler = mxf_up_handle_essence_element;
381 caps = mxf_up_rgba_create_caps (track, r, tags, handler, mapping_data);
383 caps = mxf_up_cdci_create_caps (track, c, tags, handler, mapping_data);
391 static const MXFEssenceElementHandler mxf_up_essence_element_handler = {
392 mxf_is_up_essence_track,
393 mxf_up_get_track_wrapping,
398 mxf_up_write_func (GstBuffer * buffer, gpointer mapping_data,
399 GstAdapter * adapter, GstBuffer ** outbuf, gboolean flush)
401 MXFUPMappingData *data = mapping_data;
406 if (gst_buffer_get_size (buffer) !=
407 GST_ROUND_UP_4 (data->bpp * data->width) * data->height) {
408 GST_ERROR ("Invalid buffer size");
409 return GST_FLOW_ERROR;
413 || GST_ROUND_UP_4 (data->width * data->bpp) != data->width * data->bpp) {
416 GstMapInfo inmap, outmap;
417 guint8 *indata, *outdata;
419 ret = gst_buffer_new_and_alloc (data->width * data->bpp * data->height);
420 gst_buffer_map (buffer, &inmap, GST_MAP_READ);
421 gst_buffer_map (ret, &outmap, GST_MAP_WRITE);
423 outdata = outmap.data;
425 for (y = 0; y < data->height; y++) {
426 memcpy (outdata, indata, data->width * data->bpp);
427 indata += GST_ROUND_UP_4 (data->width * data->bpp);
428 outdata += data->width * data->bpp;
431 gst_buffer_unmap (buffer, &inmap);
432 gst_buffer_unmap (ret, &outmap);
433 gst_buffer_unref (buffer);
443 static const guint8 up_essence_container_ul[] = {
444 0x06, 0x0e, 0x2b, 0x34, 0x04, 0x01, 0x01, 0x01,
445 0x0D, 0x01, 0x03, 0x01, 0x02, 0x05, 0x7F, 0x01
448 static MXFMetadataFileDescriptor *
449 mxf_up_get_rgba_descriptor (GstPadTemplate * tmpl, GstCaps * caps,
450 MXFEssenceElementWriteFunc * handler, gpointer * mapping_data)
452 MXFMetadataRGBAPictureEssenceDescriptor *ret;
454 GstCaps *tmp, *intersection;
455 MXFUPMappingData *md = g_new0 (MXFUPMappingData, 1);
459 ret = (MXFMetadataRGBAPictureEssenceDescriptor *)
460 g_object_new (MXF_TYPE_METADATA_RGBA_PICTURE_ESSENCE_DESCRIPTOR, NULL);
462 for (i = 0; i < G_N_ELEMENTS (_rgba_mapping_table); i++) {
463 tmp = gst_caps_from_string (_rgba_mapping_table[i].caps_string);
464 intersection = gst_caps_intersect (caps, tmp);
465 gst_caps_unref (tmp);
467 if (!gst_caps_is_empty (intersection)) {
468 gst_caps_unref (intersection);
469 ret->n_pixel_layout = _rgba_mapping_table[i].n_pixel_layout;
470 ret->pixel_layout = g_new0 (guint8, ret->n_pixel_layout * 2);
471 md->format = _rgba_mapping_table[i].format;
472 md->bpp = _rgba_mapping_table[i].n_pixel_layout;
473 memcpy (ret->pixel_layout, _rgba_mapping_table[i].pixel_layout,
474 ret->n_pixel_layout * 2);
477 gst_caps_unref (intersection);
480 if (md->format == NULL) {
481 GST_ERROR ("Invalid caps %" GST_PTR_FORMAT, caps);
482 g_object_unref (ret);
487 memcpy (&ret->parent.parent.essence_container, &up_essence_container_ul, 16);
489 if (!mxf_metadata_generic_picture_essence_descriptor_from_caps (&ret->parent,
491 g_object_unref (ret);
495 md->width = ret->parent.stored_width;
496 md->height = ret->parent.stored_height;
498 *handler = mxf_up_write_func;
500 return (MXFMetadataFileDescriptor *) ret;
503 static MXFMetadataFileDescriptor *
504 mxf_up_get_cdci_descriptor (GstPadTemplate * tmpl, GstCaps * caps,
505 MXFEssenceElementWriteFunc * handler, gpointer * mapping_data)
507 MXFMetadataCDCIPictureEssenceDescriptor *ret;
509 GstCaps *tmp, *intersection;
510 MXFUPMappingData *md = g_new0 (MXFUPMappingData, 1);
514 ret = (MXFMetadataCDCIPictureEssenceDescriptor *)
515 g_object_new (MXF_TYPE_METADATA_CDCI_PICTURE_ESSENCE_DESCRIPTOR, NULL);
517 for (i = 0; i < G_N_ELEMENTS (_cdci_mapping_table); i++) {
518 tmp = gst_caps_from_string (_cdci_mapping_table[i].caps_string);
519 intersection = gst_caps_intersect (caps, tmp);
520 gst_caps_unref (tmp);
522 if (!gst_caps_is_empty (intersection)) {
523 gst_caps_unref (intersection);
524 ret->horizontal_subsampling =
525 _cdci_mapping_table[i].horizontal_subsampling;
526 ret->vertical_subsampling = _cdci_mapping_table[i].vertical_subsampling;
527 ret->reversed_byte_order = _cdci_mapping_table[i].reversed_byte_order;
528 md->format = _cdci_mapping_table[i].format;
529 md->bpp = _cdci_mapping_table[i].bpp;
532 gst_caps_unref (intersection);
535 if (md->format == NULL) {
536 GST_ERROR ("Invalid caps %" GST_PTR_FORMAT, caps);
537 g_object_unref (ret);
541 memcpy (&ret->parent.parent.essence_container, &up_essence_container_ul, 16);
543 if (!mxf_metadata_generic_picture_essence_descriptor_from_caps (&ret->parent,
545 g_object_unref (ret);
549 md->width = ret->parent.stored_width;
550 md->height = ret->parent.stored_height;
552 *handler = mxf_up_write_func;
554 return (MXFMetadataFileDescriptor *) ret;
557 static MXFMetadataFileDescriptor *
558 mxf_up_get_descriptor (GstPadTemplate * tmpl, GstCaps * caps,
559 MXFEssenceElementWriteFunc * handler, gpointer * mapping_data)
563 s = gst_caps_get_structure (caps, 0);
564 if (strcmp (gst_structure_get_name (s), "video/x-raw") == 0) {
567 format = gst_structure_get_string (s, "format");
571 if (g_str_equal (format, "YUY2") || g_str_equal (format, "UYVY"))
572 return mxf_up_get_cdci_descriptor (tmpl, caps, handler, mapping_data);
574 return mxf_up_get_rgba_descriptor (tmpl, caps, handler, mapping_data);
577 g_assert_not_reached ();
582 mxf_up_update_descriptor (MXFMetadataFileDescriptor * d, GstCaps * caps,
583 gpointer mapping_data, GstBuffer * buf)
589 mxf_up_get_edit_rate (MXFMetadataFileDescriptor * a, GstCaps * caps,
590 gpointer mapping_data, GstBuffer * buf, MXFMetadataSourcePackage * package,
591 MXFMetadataTimelineTrack * track, MXFFraction * edit_rate)
593 edit_rate->n = a->sample_rate.n;
594 edit_rate->d = a->sample_rate.d;
598 mxf_up_get_track_number_template (MXFMetadataFileDescriptor * a,
599 GstCaps * caps, gpointer mapping_data)
601 return (0x15 << 24) | (0x02 << 8);
604 static MXFEssenceElementWriter mxf_up_essence_element_writer = {
605 mxf_up_get_descriptor,
606 mxf_up_update_descriptor,
607 mxf_up_get_edit_rate,
608 mxf_up_get_track_number_template,
617 mxf_essence_element_handler_register (&mxf_up_essence_element_handler);
618 mxf_up_essence_element_writer.pad_template =
619 gst_pad_template_new ("up_video_sink_%u", GST_PAD_SINK, GST_PAD_REQUEST,
620 tmp = gst_caps_from_string (GST_VIDEO_CAPS_MAKE ("RGB") "; "
621 GST_VIDEO_CAPS_MAKE ("BGR") "; "
622 GST_VIDEO_CAPS_MAKE ("RGBx") "; "
623 GST_VIDEO_CAPS_MAKE ("xRGB") "; "
624 GST_VIDEO_CAPS_MAKE ("BGRx") "; "
625 GST_VIDEO_CAPS_MAKE ("xBGR") "; "
626 GST_VIDEO_CAPS_MAKE ("ARGB") "; "
627 GST_VIDEO_CAPS_MAKE ("RGBA") "; "
628 GST_VIDEO_CAPS_MAKE ("ABGR") "; "
629 GST_VIDEO_CAPS_MAKE ("BGRA") "; "
630 GST_VIDEO_CAPS_MAKE ("AYUV") "; "
631 GST_VIDEO_CAPS_MAKE ("v308") "; "
632 GST_VIDEO_CAPS_MAKE ("UYVY") "; " GST_VIDEO_CAPS_MAKE ("YUY2")));
633 gst_caps_unref (tmp);
635 memcpy (&mxf_up_essence_element_writer.data_definition,
636 mxf_metadata_track_identifier_get (MXF_METADATA_TRACK_PICTURE_ESSENCE),
638 mxf_essence_element_writer_register (&mxf_up_essence_element_writer);