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Original commit message from CVS: * gst/mxf/Makefile.am: * gst/mxf/mxf.c: (plugin_init): * gst/mxf/mxfaes-bwf.c: (mxf_metadata_wave_audio_essence_descriptor_handle_tag), (mxf_metadata_wave_audio_essence_descriptor_init), (mxf_metadata_wave_audio_essence_descriptor_class_init), (mxf_metadata_aes3_audio_essence_descriptor_finalize), (mxf_metadata_aes3_audio_essence_descriptor_handle_tag), (mxf_metadata_aes3_audio_essence_descriptor_init), (mxf_metadata_aes3_audio_essence_descriptor_class_init), (mxf_is_aes_bwf_essence_track), (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_create_caps), (mxf_alaw_init): * gst/mxf/mxfalaw.h: * gst/mxf/mxfd10.c: (mxf_is_d10_essence_track), (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_resolve_references), (gst_mxf_demux_find_package), (gst_mxf_demux_choose_package), (gst_mxf_demux_handle_header_metadata_update_streams), (gst_mxf_demux_handle_metadata), (gst_mxf_demux_handle_generic_container_essence_element), (gst_mxf_demux_handle_klv_packet), (gst_mxf_demux_src_query): * gst/mxf/mxfdemux.h: * gst/mxf/mxfdv-dif.c: (mxf_is_dv_dif_essence_track), (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_create_caps), (mxf_jpeg2000_init): * gst/mxf/mxfjpeg2000.h: * gst/mxf/mxfmetadata.c: (mxf_metadata_base_finalize), (mxf_metadata_base_handle_tag), (mxf_metadata_base_resolve), (mxf_metadata_base_init), (mxf_metadata_base_class_init), (mxf_metadata_parse), (mxf_metadata_resolve), (mxf_metadata_handle_tag), (mxf_metadata_class_init), (mxf_metadata_init), (mxf_metadata_init_types), (mxf_metadata_register), (mxf_metadata_new), (mxf_metadata_preface_finalize), (mxf_metadata_preface_handle_tag), (mxf_metadata_preface_resolve), (mxf_metadata_preface_init), (mxf_metadata_preface_class_init), (mxf_metadata_identification_finalize), (mxf_metadata_identification_handle_tag), (mxf_metadata_identification_init), (mxf_metadata_identification_class_init), (mxf_metadata_content_storage_finalize), (mxf_metadata_content_storage_handle_tag), (mxf_metadata_content_storage_resolve), (mxf_metadata_content_storage_init), (mxf_metadata_content_storage_class_init), (mxf_metadata_essence_container_data_handle_tag), (mxf_metadata_essence_container_data_resolve), (mxf_metadata_essence_container_data_init), (mxf_metadata_essence_container_data_class_init), (mxf_metadata_generic_package_finalize), (mxf_metadata_generic_package_handle_tag), (mxf_metadata_generic_package_resolve), (mxf_metadata_generic_package_init), (mxf_metadata_generic_package_class_init), (mxf_metadata_material_package_resolve), (mxf_metadata_material_package_init), (mxf_metadata_material_package_class_init), (mxf_metadata_source_package_finalize), (mxf_metadata_source_package_handle_tag), (mxf_metadata_source_package_resolve), (mxf_metadata_source_package_init), (mxf_metadata_source_package_class_init), (mxf_metadata_track_finalize), (mxf_metadata_track_handle_tag), (mxf_metadata_track_resolve), (mxf_metadata_track_init), (mxf_metadata_track_class_init), (mxf_metadata_track_identifier_parse), (mxf_metadata_timeline_track_handle_tag), (mxf_metadata_timeline_track_init), (mxf_metadata_timeline_track_class_init), (mxf_metadata_event_track_handle_tag), (mxf_metadata_event_track_init), (mxf_metadata_event_track_class_init), (mxf_metadata_static_track_init), (mxf_metadata_static_track_class_init), (mxf_metadata_sequence_finalize), (mxf_metadata_sequence_handle_tag), (mxf_metadata_sequence_resolve), (mxf_metadata_sequence_init), (mxf_metadata_sequence_class_init), (mxf_metadata_structural_component_handle_tag), (mxf_metadata_structural_component_init), (mxf_metadata_structural_component_class_init), (mxf_metadata_timecode_component_handle_tag), (mxf_metadata_timecode_component_init), (mxf_metadata_timecode_component_class_init), (mxf_metadata_source_clip_handle_tag), (mxf_metadata_source_clip_resolve), (mxf_metadata_source_clip_init), (mxf_metadata_source_clip_class_init), (mxf_metadata_dm_source_clip_finalize), (mxf_metadata_dm_source_clip_handle_tag), (mxf_metadata_dm_source_clip_init), (mxf_metadata_dm_source_clip_class_init), (mxf_metadata_dm_segment_finalize), (mxf_metadata_dm_segment_handle_tag), (mxf_metadata_dm_segment_resolve), (mxf_metadata_dm_segment_init), (mxf_metadata_dm_segment_class_init), (mxf_metadata_generic_descriptor_finalize), (mxf_metadata_generic_descriptor_handle_tag), (mxf_metadata_generic_descriptor_resolve), (mxf_metadata_generic_descriptor_init), (mxf_metadata_generic_descriptor_class_init), (mxf_metadata_file_descriptor_handle_tag), (mxf_metadata_file_descriptor_init), (mxf_metadata_file_descriptor_class_init), (mxf_metadata_generic_picture_essence_descriptor_handle_tag), (mxf_metadata_generic_picture_essence_descriptor_init), (mxf_metadata_generic_picture_essence_descriptor_class_init), (mxf_metadata_generic_picture_essence_descriptor_set_caps), (mxf_metadata_generic_sound_essence_descriptor_handle_tag), (mxf_metadata_generic_sound_essence_descriptor_init), (mxf_metadata_generic_sound_essence_descriptor_class_init), (mxf_metadata_cdci_picture_essence_descriptor_handle_tag), (mxf_metadata_cdci_picture_essence_descriptor_init), (mxf_metadata_cdci_picture_essence_descriptor_class_init), (mxf_metadata_rgba_picture_essence_descriptor_finalize), (mxf_metadata_rgba_picture_essence_descriptor_handle_tag), (mxf_metadata_rgba_picture_essence_descriptor_init), (mxf_metadata_rgba_picture_essence_descriptor_class_init), (mxf_metadata_generic_data_essence_descriptor_handle_tag), (mxf_metadata_generic_data_essence_descriptor_init), (mxf_metadata_generic_data_essence_descriptor_class_init), (mxf_metadata_multiple_descriptor_finalize), (mxf_metadata_multiple_descriptor_handle_tag), (mxf_metadata_multiple_descriptor_resolve), (mxf_metadata_multiple_descriptor_init), (mxf_metadata_multiple_descriptor_class_init), (mxf_metadata_locator_init), (mxf_metadata_locator_class_init), (mxf_metadata_text_locator_finalize), (mxf_metadata_text_locator_handle_tag), (mxf_metadata_text_locator_init), (mxf_metadata_text_locator_class_init), (mxf_metadata_network_locator_finalize), (mxf_metadata_network_locator_handle_tag), (mxf_metadata_network_locator_init), (mxf_metadata_network_locator_class_init): * gst/mxf/mxfmetadata.h: * gst/mxf/mxfmpeg.c: (mxf_metadata_mpeg_video_descriptor_handle_tag), (mxf_metadata_mpeg_video_descriptor_init), (mxf_metadata_mpeg_video_descriptor_class_init), (mxf_is_mpeg_essence_track), (mxf_mpeg_es_create_caps), (mxf_mpeg_create_caps), (mxf_mpeg_init): * gst/mxf/mxfmpeg.h: * gst/mxf/mxfparse.c: (mxf_index_table_segment_parse), (mxf_local_tag_add_to_hash_table): * gst/mxf/mxfparse.h: * gst/mxf/mxftypes.h: * gst/mxf/mxfup.c: (mxf_is_up_essence_track), (mxf_up_create_caps), (mxf_up_init): * gst/mxf/mxfup.h: Convert the structural metadata to GstMiniObjects to make a lot of code easier and to make everything better extensible. Add a "registry" for metadata handlers to improve extensibility even more and to remove metadata type specifics from mxfdemux. Clean up a lot of parts and add some more NULL checks.
141 lines
3.8 KiB
C
141 lines
3.8 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 388M - Mapping A-Law coded audio into the MXF
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* 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 <string.h>
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#include "mxfalaw.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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gboolean
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mxf_is_alaw_essence_track (const MXFMetadataTrack * 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->descriptor == NULL)
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return FALSE;
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for (i = 0; i < track->n_descriptor; i++) {
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MXFMetadataFileDescriptor *d = track->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 388M 6.1 */
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if (mxf_is_generic_container_essence_container_label (key) &&
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key->u[12] == 0x02 && key->u[13] == 0x0a &&
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(key->u[14] == 0x01 || key->u[14] == 0x02 || key->u[14] == 0x03))
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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_alaw_handle_essence_element (const MXFUL * key, GstBuffer * buffer,
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GstCaps * caps, MXFMetadataGenericPackage * package,
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MXFMetadataTrack * track, MXFMetadataStructuralComponent * component,
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gpointer mapping_data, GstBuffer ** outbuf)
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{
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*outbuf = buffer;
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/* SMPTE 388M 5.1 */
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if (key->u[12] != 0x16 || (key->u[14] != 0x08 && key->u[14] != 0x09
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&& key->u[14] != 0x0a)) {
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GST_ERROR ("Invalid A-Law 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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GstCaps *
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mxf_alaw_create_caps (MXFMetadataGenericPackage * package,
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MXFMetadataTrack * track, GstTagList ** tags,
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MXFEssenceElementHandler * handler, gpointer * mapping_data)
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{
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MXFMetadataGenericSoundEssenceDescriptor *s = NULL;
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guint i;
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GstCaps *caps = NULL;
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g_return_val_if_fail (package != NULL, NULL);
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g_return_val_if_fail (track != NULL, NULL);
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if (track->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 < track->n_descriptor; i++) {
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if (!track->descriptor[i])
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continue;
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if (MXF_IS_METADATA_GENERIC_SOUND_ESSENCE_DESCRIPTOR (track->descriptor[i])) {
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s = (MXFMetadataGenericSoundEssenceDescriptor *) track->descriptor[i];
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break;
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}
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}
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if (!s) {
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GST_ERROR ("No generic sound essence descriptor found for this track");
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return NULL;
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}
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*handler = mxf_alaw_handle_essence_element;
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if (s && s->audio_sampling_rate.n != 0 && s->audio_sampling_rate.d != 0 &&
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s->channel_count != 0) {
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caps = gst_caps_new_simple ("audio/x-alaw", "rate", G_TYPE_INT,
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(gint) (((gdouble) s->audio_sampling_rate.n) /
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((gdouble) s->audio_sampling_rate.d) + 0.5),
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"channels", G_TYPE_INT, s->channel_count, NULL);
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/* TODO: Handle channel layout somehow?
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* Or is alaw limited to two channels? */
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if (!*tags)
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*tags = gst_tag_list_new ();
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gst_tag_list_add (*tags, GST_TAG_MERGE_APPEND, GST_TAG_AUDIO_CODEC,
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"A-law encoded audio", NULL);
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}
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return caps;
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}
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void
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mxf_alaw_init (void)
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{
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}
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