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Original commit message from CVS: * gst/mxf/mxfaes-bwf.c: (mxf_is_aes_bwf_essence_track), (mxf_bwf_handle_essence_element), (mxf_aes3_handle_essence_element), (mxf_bwf_create_caps), (mxf_aes3_create_caps), (mxf_aes_bwf_create_caps), (mxf_aes_bwf_init): * gst/mxf/mxfaes-bwf.h: * gst/mxf/mxfalaw.c: (mxf_is_alaw_essence_track), (mxf_alaw_handle_essence_element), (mxf_alaw_create_caps), (mxf_alaw_init): * gst/mxf/mxfalaw.h: * gst/mxf/mxfd10.c: (mxf_is_d10_essence_track), (mxf_d10_picture_handle_essence_element), (mxf_d10_sound_handle_essence_element), (mxf_d10_create_caps), (mxf_d10_init): * gst/mxf/mxfd10.h: * gst/mxf/mxfdemux.c: (gst_mxf_demux_reset_metadata), (gst_mxf_demux_handle_header_metadata_update_streams), (gst_mxf_demux_handle_generic_container_essence_element): * gst/mxf/mxfdv-dif.c: (mxf_is_dv_dif_essence_track), (mxf_dv_dif_handle_essence_element), (mxf_dv_dif_create_caps), (mxf_dv_dif_init): * gst/mxf/mxfdv-dif.h: * gst/mxf/mxfjpeg2000.c: (mxf_is_jpeg2000_essence_track), (mxf_jpeg2000_handle_essence_element), (mxf_jpeg2000_create_caps), (mxf_jpeg2000_init): * gst/mxf/mxfjpeg2000.h: * gst/mxf/mxfmpeg.c: (mxf_is_mpeg_essence_track), (mxf_mpeg_video_handle_essence_element), (mxf_mpeg_audio_handle_essence_element), (mxf_mpeg_es_create_caps), (mxf_mpeg_create_caps), (mxf_mpeg_init): * gst/mxf/mxfmpeg.h: * gst/mxf/mxfparse.c: (mxf_essence_element_handler_register), (mxf_essence_element_handler_find): * gst/mxf/mxfparse.h: * gst/mxf/mxfup.c: (mxf_is_up_essence_track), (mxf_up_handle_essence_element), (mxf_up_rgba_create_caps), (mxf_up_create_caps), (mxf_up_init): * gst/mxf/mxfup.h: Implement an essence element handling registry and use this instead of an hardcoded, large if-then-else block.
546 lines
18 KiB
C
546 lines
18 KiB
C
/* 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 381M - Mapping MPEG streams into the MXF
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* Generic Container
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*/
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/* TODO:
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* - Handle PES streams
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* - Fix TS/PS demuxers to forward timestamps
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* - h264 support (see SMPTE RP2008)
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* - AAC support
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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 "mxfmpeg.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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/* SMPTE 381M 8.1 - ULs of local tags */
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static const guint8 _single_sequence_ul[] = {
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0x06, 0x0e, 0x2b, 0x34, 0x01, 0x01, 0x01, 0x05, 0x04, 0x01, 0x06, 0x02, 0x01,
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0x02, 0x00, 0x00
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};
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static const guint8 _constant_b_frames_ul[] = {
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0x06, 0x0e, 0x2b, 0x34, 0x01, 0x01, 0x01, 0x05, 0x04, 0x01, 0x06, 0x02, 0x01,
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0x03, 0x00, 0x00
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};
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static const guint8 _coded_content_type_ul[] = {
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0x06, 0x0e, 0x2b, 0x34, 0x01, 0x01, 0x01, 0x05, 0x04, 0x01, 0x06, 0x02, 0x01,
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0x04, 0x00, 0x00
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};
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static const guint8 _low_delay_ul[] = {
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0x06, 0x0e, 0x2b, 0x34, 0x01, 0x01, 0x01, 0x05, 0x04, 0x01, 0x06, 0x02, 0x01,
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0x05, 0x00, 0x00
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};
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static const guint8 _closed_gop_ul[] = {
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0x06, 0x0e, 0x2b, 0x34, 0x01, 0x01, 0x01, 0x05, 0x04, 0x01, 0x06, 0x02, 0x01,
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0x06, 0x00, 0x00
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};
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static const guint8 _identical_gop_ul[] = {
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0x06, 0x0e, 0x2b, 0x34, 0x01, 0x01, 0x01, 0x05, 0x04, 0x01, 0x06, 0x02, 0x01,
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0x07, 0x00, 0x00
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};
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static const guint8 _max_gop_ul[] = {
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0x06, 0x0e, 0x2b, 0x34, 0x01, 0x01, 0x01, 0x05, 0x04, 0x01, 0x06, 0x02, 0x01,
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0x08, 0x00, 0x00
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};
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static const guint8 _b_picture_count_ul[] = {
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0x06, 0x0e, 0x2b, 0x34, 0x01, 0x01, 0x01, 0x05, 0x04, 0x01, 0x06, 0x02, 0x01,
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0x09, 0x00, 0x00
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};
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static const guint8 _bitrate_ul[] = {
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0x06, 0x0e, 0x2b, 0x34, 0x01, 0x01, 0x01, 0x05, 0x04, 0x01, 0x06, 0x02, 0x01,
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0x0b, 0x00, 0x00
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};
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static const guint8 _profile_and_level_ul[] = {
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0x06, 0x0e, 0x2b, 0x34, 0x01, 0x01, 0x01, 0x05, 0x04, 0x01, 0x06, 0x02, 0x01,
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0x0a, 0x00, 0x00
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};
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/* SMPTE 381M 8.1 */
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#define MXF_TYPE_METADATA_MPEG_VIDEO_DESCRIPTOR \
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(mxf_metadata_mpeg_video_descriptor_get_type())
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#define MXF_METADATA_MPEG_VIDEO_DESCRIPTOR(obj) \
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(G_TYPE_CHECK_INSTANCE_CAST((obj),MXF_TYPE_METADATA_MPEG_VIDEO_DESCRIPTOR, MXFMetadataMPEGVideoDescriptor))
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#define MXF_IS_METADATA_MPEG_VIDEO_DESCRIPTOR(obj) \
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(G_TYPE_CHECK_INSTANCE_TYPE((obj),MXF_TYPE_METADATA_MPEG_VIDEO_DESCRIPTOR))
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typedef struct _MXFMetadataMPEGVideoDescriptor MXFMetadataMPEGVideoDescriptor;
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typedef MXFMetadataBaseClass MXFMetadataMPEGVideoDescriptorClass;
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GType mxf_metadata_mpeg_video_descriptor_get_type (void);
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struct _MXFMetadataMPEGVideoDescriptor
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{
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MXFMetadataCDCIPictureEssenceDescriptor parent;
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gboolean single_sequence;
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gboolean const_b_frames;
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guint8 coded_content_type;
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gboolean low_delay;
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gboolean closed_gop;
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gboolean identical_gop;
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guint16 max_gop;
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guint16 b_picture_count;
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guint32 bitrate;
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guint8 profile_and_level;
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};
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G_DEFINE_TYPE (MXFMetadataMPEGVideoDescriptor,
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mxf_metadata_mpeg_video_descriptor,
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MXF_TYPE_METADATA_CDCI_PICTURE_ESSENCE_DESCRIPTOR);
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static gboolean
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mxf_metadata_mpeg_video_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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MXFMetadataMPEGVideoDescriptor *self =
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MXF_METADATA_MPEG_VIDEO_DESCRIPTOR (metadata);
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gboolean ret = TRUE;
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MXFUL *tag_ul = NULL;
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if (!(tag_ul =
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(MXFUL *) g_hash_table_lookup (primer->mappings,
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GUINT_TO_POINTER (((guint) tag)))))
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return FALSE;
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if (memcmp (tag_ul, &_single_sequence_ul, 16) == 0) {
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if (tag_size != 1)
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goto error;
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self->single_sequence = GST_READ_UINT8 (tag_data);
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GST_DEBUG (" single sequence = %s",
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(self->single_sequence) ? "yes" : "no");
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} else if (memcmp (tag_ul, &_constant_b_frames_ul, 16) == 0) {
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if (tag_size != 1)
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goto error;
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self->const_b_frames = GST_READ_UINT8 (tag_data);
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GST_DEBUG (" constant b frames = %s",
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(self->single_sequence) ? "yes" : "no");
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} else if (memcmp (tag_ul, &_coded_content_type_ul, 16) == 0) {
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if (tag_size != 1)
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goto error;
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self->coded_content_type = GST_READ_UINT8 (tag_data);
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GST_DEBUG (" coded content type = %u", self->coded_content_type);
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} else if (memcmp (tag_ul, &_low_delay_ul, 16) == 0) {
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if (tag_size != 1)
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goto error;
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self->low_delay = GST_READ_UINT8 (tag_data);
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GST_DEBUG (" low delay = %s", (self->low_delay) ? "yes" : "no");
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} else if (memcmp (tag_ul, &_closed_gop_ul, 16) == 0) {
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if (tag_size != 1)
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goto error;
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self->closed_gop = GST_READ_UINT8 (tag_data);
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GST_DEBUG (" closed gop = %s", (self->closed_gop) ? "yes" : "no");
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} else if (memcmp (tag_ul, &_identical_gop_ul, 16) == 0) {
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if (tag_size != 1)
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goto error;
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self->identical_gop = GST_READ_UINT8 (tag_data);
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GST_DEBUG (" identical gop = %s", (self->identical_gop) ? "yes" : "no");
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} else if (memcmp (tag_ul, &_max_gop_ul, 16) == 0) {
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if (tag_size != 2)
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goto error;
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self->max_gop = GST_READ_UINT16_BE (tag_data);
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GST_DEBUG (" max gop = %u", self->max_gop);
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} else if (memcmp (tag_ul, &_b_picture_count_ul, 16) == 0) {
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if (tag_size != 2)
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goto error;
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self->b_picture_count = GST_READ_UINT16_BE (tag_data);
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GST_DEBUG (" b picture count = %u", self->b_picture_count);
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} else if (memcmp (tag_ul, &_bitrate_ul, 16) == 0) {
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if (tag_size != 4)
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goto error;
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self->bitrate = GST_READ_UINT32_BE (tag_data);
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GST_DEBUG (" bitrate = %u", self->bitrate);
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} else if (memcmp (tag_ul, &_profile_and_level_ul, 16) == 0) {
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if (tag_size != 1)
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goto error;
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self->profile_and_level = GST_READ_UINT8 (tag_data);
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GST_DEBUG (" profile & level = %u", self->profile_and_level);
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} else {
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ret =
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MXF_METADATA_BASE_CLASS
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(mxf_metadata_mpeg_video_descriptor_parent_class)->handle_tag (metadata,
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primer, tag, tag_data, tag_size);
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}
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return ret;
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error:
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GST_ERROR ("Invalid MPEG video descriptor local tag 0x%04x of size %u", tag,
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tag_size);
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return FALSE;
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}
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static void
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mxf_metadata_mpeg_video_descriptor_init (MXFMetadataMPEGVideoDescriptor * self)
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{
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}
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static void
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mxf_metadata_mpeg_video_descriptor_class_init
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(MXFMetadataMPEGVideoDescriptorClass * klass)
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{
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MXFMetadataBaseClass *metadata_base_class = (MXFMetadataBaseClass *) klass;
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metadata_base_class->handle_tag =
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mxf_metadata_mpeg_video_descriptor_handle_tag;
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}
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static gboolean
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mxf_is_mpeg_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 381M 7 */
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if (mxf_is_generic_container_essence_container_label (key) &&
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key->u[12] == 0x02 &&
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(key->u[13] == 0x04 ||
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key->u[13] == 0x07 || key->u[13] == 0x08 || key->u[13] == 0x09))
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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_mpeg_video_handle_essence_element (const MXFUL * key, GstBuffer * buffer,
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GstCaps * caps, 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 381M 6.1 */
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if (key->u[12] != 0x15 || (key->u[14] != 0x05 && key->u[14] != 0x06
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&& key->u[14] != 0x07)) {
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GST_ERROR ("Invalid MPEG video 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 GstFlowReturn
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mxf_mpeg_audio_handle_essence_element (const MXFUL * key, GstBuffer * buffer,
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GstCaps * caps, 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 381M 6.2 */
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if (key->u[12] != 0x16 || (key->u[14] != 0x05 && key->u[14] != 0x06
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&& key->u[14] != 0x07)) {
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GST_ERROR ("Invalid MPEG audio 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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/* Private uid used by SONY C0023S01.mxf,
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* taken from the ffmpeg mxf demuxer */
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static const guint8 sony_mpeg4_extradata[] = {
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0x06, 0x0e, 0x2b, 0x34, 0x04, 0x01, 0x01, 0x01, 0x0e, 0x06, 0x06, 0x02, 0x02,
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0x01, 0x00, 0x00
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};
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/* RP224 */
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static const MXFUL sound_essence_compression_ac3 = { {
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0x06, 0x0E, 0x2B, 0x34, 0x04, 0x01, 0x01, 0x01, 0x04, 0x02, 0x02, 0x02,
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0x03, 0x02, 0x01, 0x00}
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};
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static const MXFUL sound_essence_compression_mpeg1_layer1 = { {
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0x06, 0x0E, 0x2B, 0x34, 0x04, 0x01, 0x01, 0x01, 0x04, 0x02, 0x02, 0x02,
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0x03, 0x02, 0x04, 0x00}
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};
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static const MXFUL sound_essence_compression_mpeg1_layer12 = { {
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0x06, 0x0E, 0x2B, 0x34, 0x04, 0x01, 0x01, 0x01, 0x04, 0x02, 0x02, 0x02,
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0x03, 0x02, 0x05, 0x00}
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};
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static const MXFUL sound_essence_compression_mpeg1_layer2 = { {
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0x06, 0x0E, 0x2B, 0x34, 0x04, 0x01, 0x01, 0x08, 0x04, 0x02, 0x02, 0x02,
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0x03, 0x02, 0x05, 0x01}
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};
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static const MXFUL sound_essence_compression_mpeg2_layer1 = { {
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0x06, 0x0E, 0x2B, 0x34, 0x04, 0x01, 0x01, 0x08, 0x04, 0x02, 0x02, 0x02,
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0x03, 0x02, 0x06, 0x00}
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};
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static const MXFUL sound_essence_compression_dts = { {
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0x06, 0x0E, 0x2B, 0x34, 0x04, 0x01, 0x01, 0x08, 0x04, 0x02, 0x02, 0x02,
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0x03, 0x02, 0x1c, 0x00}
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};
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static GstCaps *
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mxf_mpeg_es_create_caps (MXFMetadataTimelineTrack * track, GstTagList ** tags,
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MXFEssenceElementHandleFunc * handler, gpointer * mapping_data,
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MXFMetadataGenericPictureEssenceDescriptor * p,
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MXFMetadataGenericSoundEssenceDescriptor * s)
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{
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GstCaps *caps = NULL;
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const gchar *codec_name = NULL;
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/* SMPTE RP224 */
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if (p) {
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if (mxf_ul_is_zero (&p->picture_essence_coding)) {
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GST_WARNING ("No picture essence coding defined, assuming MPEG2");
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caps =
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gst_caps_new_simple ("video/mpeg", "mpegversion", G_TYPE_INT, 2,
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"systemstream", G_TYPE_BOOLEAN, FALSE, NULL);
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codec_name = "MPEG-2 Video";
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} else if (p->picture_essence_coding.u[0] != 0x06
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|| p->picture_essence_coding.u[1] != 0x0e
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|| p->picture_essence_coding.u[2] != 0x2b
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|| p->picture_essence_coding.u[3] != 0x34
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|| p->picture_essence_coding.u[4] != 0x04
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|| p->picture_essence_coding.u[5] != 0x01
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|| p->picture_essence_coding.u[6] != 0x01
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|| p->picture_essence_coding.u[8] != 0x04
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|| p->picture_essence_coding.u[9] != 0x01
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|| p->picture_essence_coding.u[10] != 0x02
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|| p->picture_essence_coding.u[11] != 0x02
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|| p->picture_essence_coding.u[12] != 0x01) {
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GST_ERROR ("No MPEG picture essence coding");
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caps = NULL;
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} else if (p->picture_essence_coding.u[13] >= 0x01 &&
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p->picture_essence_coding.u[13] <= 0x08) {
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caps = gst_caps_new_simple ("video/mpeg", "mpegversion", G_TYPE_INT, 2,
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"systemstream", G_TYPE_BOOLEAN, FALSE, NULL);
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codec_name = "MPEG-2 Video";
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} else if (p->picture_essence_coding.u[13] == 0x10) {
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caps = gst_caps_new_simple ("video/mpeg", "mpegversion", G_TYPE_INT, 1,
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"systemstream", G_TYPE_BOOLEAN, FALSE, NULL);
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codec_name = "MPEG-1 Video";
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} else if (p->picture_essence_coding.u[13] == 0x20) {
|
|
MXFLocalTag *local_tag =
|
|
(((MXFMetadataBase *) p)->other_tags) ?
|
|
g_hash_table_lookup (((MXFMetadataBase *)
|
|
p)->other_tags, &sony_mpeg4_extradata) : NULL;
|
|
|
|
caps = gst_caps_new_simple ("video/mpeg", "mpegversion", G_TYPE_INT, 4,
|
|
"systemstream", G_TYPE_BOOLEAN, FALSE, NULL);
|
|
|
|
if (local_tag) {
|
|
GstBuffer *codec_data = NULL;
|
|
codec_data = gst_buffer_new_and_alloc (local_tag->size);
|
|
memcpy (GST_BUFFER_DATA (codec_data), local_tag->data, local_tag->size);
|
|
gst_caps_set_simple (caps, "codec_data", GST_TYPE_BUFFER, codec_data,
|
|
NULL);
|
|
gst_buffer_unref (codec_data);
|
|
}
|
|
codec_name = "MPEG-4 Video";
|
|
} else {
|
|
GST_ERROR ("Unsupported MPEG picture essence coding 0x%02x",
|
|
p->picture_essence_coding.u[13]);
|
|
caps = NULL;
|
|
}
|
|
if (caps)
|
|
*handler = mxf_mpeg_video_handle_essence_element;
|
|
} else if (s) {
|
|
if (mxf_ul_is_zero (&s->sound_essence_compression)) {
|
|
GST_WARNING ("Zero sound essence compression, assuming MPEG1 audio");
|
|
caps =
|
|
gst_caps_new_simple ("audio/mpeg", "mpegversion", G_TYPE_INT, 1,
|
|
NULL);
|
|
codec_name = "MPEG-1 Audio";
|
|
} else if (mxf_ul_is_equal (&s->sound_essence_compression,
|
|
&sound_essence_compression_ac3)) {
|
|
caps = gst_caps_new_simple ("audio/ac3", NULL);
|
|
codec_name = "AC3 Audio";
|
|
} else if (mxf_ul_is_equal (&s->sound_essence_compression,
|
|
&sound_essence_compression_mpeg1_layer1)) {
|
|
caps =
|
|
gst_caps_new_simple ("audio/mpeg", "mpegversion", G_TYPE_INT, 1,
|
|
"layer", G_TYPE_INT, 1, NULL);
|
|
codec_name = "MPEG-1 Layer 1 Audio";
|
|
} else if (mxf_ul_is_equal (&s->sound_essence_compression,
|
|
&sound_essence_compression_mpeg1_layer12)) {
|
|
caps =
|
|
gst_caps_new_simple ("audio/mpeg", "mpegversion", G_TYPE_INT, 1,
|
|
NULL);
|
|
codec_name = "MPEG-1 Audio";
|
|
} else if (mxf_ul_is_equal (&s->sound_essence_compression,
|
|
&sound_essence_compression_mpeg1_layer2)) {
|
|
caps =
|
|
gst_caps_new_simple ("audio/mpeg", "mpegversion", G_TYPE_INT, 1,
|
|
"layer", G_TYPE_INT, 2, NULL);
|
|
codec_name = "MPEG-1 Layer 2 Audio";
|
|
} else if (mxf_ul_is_equal (&s->sound_essence_compression,
|
|
&sound_essence_compression_mpeg2_layer1)) {
|
|
caps =
|
|
gst_caps_new_simple ("audio/mpeg", "mpegversion", G_TYPE_INT, 1,
|
|
"layer", G_TYPE_INT, 1, "mpegaudioversion", G_TYPE_INT, 2, NULL);
|
|
codec_name = "MPEG-2 Layer 1 Audio";
|
|
} else if (mxf_ul_is_equal (&s->sound_essence_compression,
|
|
&sound_essence_compression_dts)) {
|
|
caps = gst_caps_new_simple ("audio/x-dts", NULL);
|
|
codec_name = "Dolby DTS Audio";
|
|
}
|
|
|
|
if (caps) {
|
|
if (s->audio_sampling_rate.n != 0 && s->audio_sampling_rate.d != 0)
|
|
gst_caps_set_simple (caps, "rate", G_TYPE_INT,
|
|
(gint) (((gdouble) s->audio_sampling_rate.n) /
|
|
((gdouble) s->audio_sampling_rate.d) + 0.5), NULL);
|
|
if (s->channel_count != 0)
|
|
gst_caps_set_simple (caps, "channels", G_TYPE_INT, s->channel_count,
|
|
NULL);
|
|
|
|
*handler = mxf_mpeg_audio_handle_essence_element;
|
|
}
|
|
}
|
|
|
|
if (caps) {
|
|
if (!*tags)
|
|
*tags = gst_tag_list_new ();
|
|
if (codec_name)
|
|
gst_tag_list_add (*tags, GST_TAG_MERGE_APPEND, GST_TAG_VIDEO_CODEC,
|
|
codec_name, NULL);
|
|
}
|
|
|
|
return caps;
|
|
}
|
|
|
|
static GstCaps *
|
|
mxf_mpeg_create_caps (MXFMetadataTimelineTrack * track, GstTagList ** tags,
|
|
MXFEssenceElementHandleFunc * handler, gpointer * mapping_data)
|
|
{
|
|
MXFMetadataFileDescriptor *f = NULL;
|
|
MXFMetadataGenericPictureEssenceDescriptor *p = NULL;
|
|
MXFMetadataGenericSoundEssenceDescriptor *s = 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_GENERIC_PICTURE_ESSENCE_DESCRIPTOR (track->
|
|
parent.descriptor[i])) {
|
|
f = track->parent.descriptor[i];
|
|
p = (MXFMetadataGenericPictureEssenceDescriptor *) track->parent.
|
|
descriptor[i];
|
|
break;
|
|
} else if (MXF_IS_METADATA_GENERIC_SOUND_ESSENCE_DESCRIPTOR (track->
|
|
parent.descriptor[i])) {
|
|
f = track->parent.descriptor[i];
|
|
s = (MXFMetadataGenericSoundEssenceDescriptor *) track->parent.
|
|
descriptor[i];
|
|
break;
|
|
}
|
|
}
|
|
|
|
if (!f) {
|
|
GST_ERROR ("No descriptor found for this track");
|
|
return NULL;
|
|
}
|
|
|
|
/* SMPTE 381M 7 */
|
|
if (f->essence_container.u[13] == 0x04) {
|
|
GST_DEBUG ("Found MPEG ES stream");
|
|
|
|
caps = mxf_mpeg_es_create_caps (track, tags, handler, mapping_data, p, s);
|
|
} else if (f->essence_container.u[13] == 0x07) {
|
|
GST_ERROR ("MPEG PES streams not supported yet");
|
|
return NULL;
|
|
} else if (f->essence_container.u[13] == 0x08) {
|
|
/* FIXME: get mpeg version somehow */
|
|
GST_DEBUG ("Found MPEG PS stream");
|
|
caps = gst_caps_new_simple ("video/mpeg", "mpegversion", G_TYPE_INT, 1,
|
|
"systemstream", G_TYPE_BOOLEAN, TRUE, NULL);
|
|
|
|
if (!*tags)
|
|
*tags = gst_tag_list_new ();
|
|
gst_tag_list_add (*tags, GST_TAG_MERGE_APPEND, GST_TAG_VIDEO_CODEC,
|
|
"MPEG PS", NULL);
|
|
} else if (f->essence_container.u[13] == 0x09) {
|
|
GST_DEBUG ("Found MPEG TS stream");
|
|
caps = gst_caps_new_simple ("video/mpegts", NULL);
|
|
|
|
if (!*tags)
|
|
*tags = gst_tag_list_new ();
|
|
gst_tag_list_add (*tags, GST_TAG_MERGE_APPEND, GST_TAG_VIDEO_CODEC,
|
|
"MPEG TS", NULL);
|
|
}
|
|
|
|
if (p)
|
|
mxf_metadata_generic_picture_essence_descriptor_set_caps (p, caps);
|
|
|
|
return caps;
|
|
}
|
|
|
|
static const MXFEssenceElementHandler mxf_mpeg_essence_element_handler = {
|
|
mxf_is_mpeg_essence_track,
|
|
mxf_mpeg_create_caps
|
|
};
|
|
|
|
void
|
|
mxf_mpeg_init (void)
|
|
{
|
|
mxf_metadata_register (0x0151, MXF_TYPE_METADATA_MPEG_VIDEO_DESCRIPTOR);
|
|
mxf_essence_element_handler_register (&mxf_mpeg_essence_element_handler);
|
|
}
|