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https://gitlab.freedesktop.org/gstreamer/gstreamer.git
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274 lines
7.7 KiB
C
274 lines
7.7 KiB
C
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/* GStreamer
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* Copyright (C) 2023 Edward Hervey <edward@centricular.com>
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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., 51 Franklin St, Fifth Floor,
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* Boston, MA 02110-1301, USA.
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*/
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/* Implementation of RDD48 Amd1 - mapping of RFC 9043 FFV1 Video Coding Format
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* Versions 0, 1, and 3 to RDD 48 and the MXF 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 <gst/video/video.h>
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#include <string.h>
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#include "mxfffv1.h"
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#include "mxfessence.h"
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#include "mxfquark.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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/* RRD 48 Amd 1 */
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static const MXFUL _ffv1_picture_descriptor_ul = { {
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0x06, 0x0e, 0x2b, 0x34, 0x01, 0x01, 0x01, 0x0e, 0x04, 0x01, 0x06, 0x0c,
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}
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};
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#define MXF_TYPE_METADATA_FFV1_PICTURE_DESCRIPTOR \
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(mxf_metadata_ffv1_picture_descriptor_get_type())
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#define MXF_METADATA_FFV1_PICTURE_DESCRIPTOR(obj) \
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(G_TYPE_CHECK_INSTANCE_CAST((obj),MXF_TYPE_METADATA_FFV1_PICTURE_DESCRIPTOR, MXFMetadataFFV1PictureDescriptor))
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#define MXF_IS_METADATA_FFV1_PICTURE_DESCRIPTOR(obj) \
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(G_TYPE_CHECK_INSTANCE_TYPE((obj),MXF_TYPE_METADATA_FFV1_PICTURE_DESCRIPTOR))
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typedef struct _MXFMetadataFFV1PictureDescriptor
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MXFMetadataFFV1PictureDescriptor;
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typedef MXFMetadataClass MXFMetadataFFV1PictureDescriptorClass;
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GType mxf_metadata_ffv1_picture_descriptor_get_type (void);
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struct _MXFMetadataFFV1PictureDescriptor
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{
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MXFMetadataCDCIPictureEssenceDescriptor parent;
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gchar *initialization_data;
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gsize id_size;
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};
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G_DEFINE_TYPE (MXFMetadataFFV1PictureDescriptor,
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mxf_metadata_ffv1_picture_descriptor,
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MXF_TYPE_METADATA_CDCI_PICTURE_ESSENCE_DESCRIPTOR);
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static gboolean
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mxf_is_ffv1_essence_track (const MXFMetadataFileDescriptor * d)
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{
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const MXFUL *key = &d->essence_container;
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return (mxf_is_generic_container_essence_container_label (key) &&
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key->u[12] == 0x02 && key->u[13] == 0x23);
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}
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static GstFlowReturn
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mxf_ffv1_handle_essence_element (const MXFUL * key, GstBuffer * buffer,
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GstCaps * caps,
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MXFMetadataTimelineTrack * track,
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gpointer mapping_data, GstBuffer ** outbuf)
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{
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*outbuf = buffer;
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if (key->u[12] != 0x15 || (key->u[14] != 0x1d && key->u[14] != 0x1e)) {
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GST_ERROR ("Invalid FFV1 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 MXFEssenceWrapping
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mxf_ffv1_get_track_wrapping (const MXFMetadataTimelineTrack * track)
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{
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MXFMetadataTrack *p = (MXFMetadataTrack *) track;
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guint i;
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g_return_val_if_fail (track != NULL, MXF_ESSENCE_WRAPPING_CUSTOM_WRAPPING);
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if (p->descriptor == NULL) {
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GST_ERROR ("No descriptor found for this track");
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return MXF_ESSENCE_WRAPPING_CUSTOM_WRAPPING;
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}
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for (i = 0; i < p->n_descriptor; i++) {
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MXFMetadataFileDescriptor *desc = p->descriptor[i];
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if (!desc)
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continue;
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switch (desc->essence_container.u[14]) {
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case 0x01:
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return MXF_ESSENCE_WRAPPING_FRAME_WRAPPING;
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break;
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case 0x02:
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return MXF_ESSENCE_WRAPPING_CLIP_WRAPPING;
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break;
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default:
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return MXF_ESSENCE_WRAPPING_CUSTOM_WRAPPING;
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break;
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}
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}
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return MXF_ESSENCE_WRAPPING_CUSTOM_WRAPPING;
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}
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static GstCaps *
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mxf_ffv1_create_caps (MXFMetadataTimelineTrack * track, GstTagList ** tags,
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gboolean * intra_only, MXFEssenceElementHandleFunc * handler,
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gpointer * mapping_data)
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{
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MXFMetadataTrack *p = (MXFMetadataTrack *) track;
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MXFMetadataGenericDescriptor *generic = 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 (p->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 < p->n_descriptor; i++) {
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MXFMetadataFileDescriptor *desc = p->descriptor[i];
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if (!p)
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continue;
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if (MXF_IS_METADATA_GENERIC_PICTURE_ESSENCE_DESCRIPTOR (desc) &&
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desc->essence_container.u[13] == 0x23) {
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generic = (MXFMetadataGenericDescriptor *) desc;
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break;
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}
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}
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if (generic) {
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GST_DEBUG ("Found FFV1 byte-stream stream");
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*handler = mxf_ffv1_handle_essence_element;
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caps =
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gst_caps_new_simple ("video/x-ffv", "ffvversion", G_TYPE_INT, 1, NULL);
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for (i = 0; i < generic->n_sub_descriptors; i++) {
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if (generic->sub_descriptors[i]
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&&
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MXF_IS_METADATA_FFV1_PICTURE_DESCRIPTOR (generic->sub_descriptors[i]))
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{
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MXFMetadataFFV1PictureDescriptor *ffv1 =
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(MXFMetadataFFV1PictureDescriptor *) generic->sub_descriptors[i];
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GstBuffer *codec_data;
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g_assert (ffv1->initialization_data);
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codec_data =
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gst_buffer_new_wrapped (g_memdup2 (ffv1->initialization_data,
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ffv1->id_size), ffv1->id_size);
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gst_caps_set_simple (caps, "codec_data", GST_TYPE_BUFFER, codec_data,
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NULL);
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gst_buffer_unref (codec_data);
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break;
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}
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}
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if (!*tags)
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*tags = gst_tag_list_new_empty ();
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gst_tag_list_add (*tags, GST_TAG_MERGE_APPEND, GST_TAG_VIDEO_CODEC,
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"FFV1 Video", NULL);
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*intra_only = TRUE;
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mxf_metadata_generic_picture_essence_descriptor_set_caps (
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(MXFMetadataGenericPictureEssenceDescriptor *) generic, caps);
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}
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return caps;
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}
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static const MXFEssenceElementHandler mxf_ffv1_essence_element_handler = {
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mxf_is_ffv1_essence_track,
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mxf_ffv1_get_track_wrapping,
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mxf_ffv1_create_caps
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};
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static gboolean
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mxf_metadata_ffv1_picture_descriptor_handle_tag (MXFMetadataBase * metadata,
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MXFPrimerPack * primer, guint16 tag, const guint8 * tag_data,
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guint tag_size)
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{
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MXFMetadataFFV1PictureDescriptor *self =
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MXF_METADATA_FFV1_PICTURE_DESCRIPTOR (metadata);
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gboolean ret = TRUE;
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MXFUL *tag_ul = NULL;
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#ifndef GST_DISABLE_GST_DEBUG
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gchar str[48];
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#endif
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tag_ul = mxf_primer_tag_to_ul (primer, tag);
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if (!tag_ul)
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return FALSE;
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GST_DEBUG ("%s", mxf_ul_to_string (tag_ul, str));
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if (mxf_ul_is_subclass (&_ffv1_picture_descriptor_ul, tag_ul)) {
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switch (tag_ul->u[12]) {
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case 0x01:
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{
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GST_MEMDUMP ("Initialization data", tag_data, tag_size);
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self->initialization_data = g_memdup2 (tag_data, tag_size);
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self->id_size = tag_size;
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break;
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}
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default:
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GST_DEBUG ("Tag 0x%02x", tag_ul->u[12]);
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break;
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}
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ret = TRUE;
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} else {
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ret =
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MXF_METADATA_BASE_CLASS
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(mxf_metadata_ffv1_picture_descriptor_parent_class)->handle_tag
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(metadata, primer, tag, tag_data, tag_size);
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}
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return ret;
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}
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static void
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mxf_metadata_ffv1_picture_descriptor_init (MXFMetadataFFV1PictureDescriptor *
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self)
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{
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}
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static void
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mxf_metadata_ffv1_picture_descriptor_class_init
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(MXFMetadataFFV1PictureDescriptorClass * klass)
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{
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MXFMetadataBaseClass *metadata_base_class = (MXFMetadataBaseClass *) klass;
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MXFMetadataClass *metadata_class = (MXFMetadataClass *) klass;
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metadata_base_class->handle_tag =
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mxf_metadata_ffv1_picture_descriptor_handle_tag;
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metadata_base_class->name_quark = MXF_QUARK (FFV1_PICTURE_DESCRIPTOR);
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metadata_class->type = 0x0181;
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}
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void
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mxf_ffv1_init (void)
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{
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mxf_essence_element_handler_register (&mxf_ffv1_essence_element_handler);
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mxf_metadata_register (MXF_TYPE_METADATA_FFV1_PICTURE_DESCRIPTOR);
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}
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