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Original commit message from CVS: * gst/mxf/mxfaes-bwf.c: (mxf_metadata_wave_audio_essence_descriptor_handle_tag), (mxf_metadata_aes3_audio_essence_descriptor_handle_tag): * gst/mxf/mxfmetadata.c: (mxf_metadata_multiple_descriptor_handle_tag): Return FALSE when parsing a metadata tag failed. Remove some useless return value assignments.
790 lines
25 KiB
C
790 lines
25 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 382M - Mapping AES3 and Broadcast Wave
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* Audio into the MXF Generic Container
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*/
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/* TODO:
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* - Handle the case were a track only references specific channels
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* of the essence (ChannelID property)
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* - Add support for more codecs
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* - Handle more of the metadata inside the descriptors
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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 "mxfaes-bwf.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 382M Annex 1 */
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G_DEFINE_TYPE (MXFMetadataWaveAudioEssenceDescriptor,
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mxf_metadata_wave_audio_essence_descriptor,
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MXF_TYPE_METADATA_GENERIC_SOUND_ESSENCE_DESCRIPTOR);
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static gboolean
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mxf_metadata_wave_audio_essence_descriptor_handle_tag (MXFMetadataBase *
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metadata, MXFPrimerPack * primer, guint16 tag, const guint8 * tag_data,
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guint tag_size)
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{
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MXFMetadataWaveAudioEssenceDescriptor *self =
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MXF_METADATA_WAVE_AUDIO_ESSENCE_DESCRIPTOR (metadata);
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gboolean ret = TRUE;
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gchar str[48];
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switch (tag) {
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case 0x3d0a:
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if (tag_size != 2)
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goto error;
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self->block_align = GST_READ_UINT16_BE (tag_data);
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GST_DEBUG (" block align = %u", self->block_align);
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break;
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case 0x3d0b:
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if (tag_size != 1)
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goto error;
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self->sequence_offset = GST_READ_UINT8 (tag_data);
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GST_DEBUG (" sequence offset = %u", self->sequence_offset);
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break;
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case 0x3d09:
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if (tag_size != 4)
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goto error;
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self->avg_bps = GST_READ_UINT32_BE (tag_data);
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GST_DEBUG (" average bps = %u", self->avg_bps);
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break;
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case 0x3d32:
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if (tag_size != 16)
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goto error;
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memcpy (&self->channel_assignment, tag_data, 16);
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GST_DEBUG (" channel assignment = %s",
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mxf_ul_to_string (&self->channel_assignment, str));
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break;
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case 0x3d29:
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if (tag_size != 4)
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goto error;
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self->peak_envelope_version = GST_READ_UINT32_BE (tag_data);
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GST_DEBUG (" peak envelope version = %u", self->peak_envelope_version);
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break;
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case 0x3d2a:
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if (tag_size != 4)
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goto error;
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self->peak_envelope_format = GST_READ_UINT32_BE (tag_data);
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GST_DEBUG (" peak envelope format = %u", self->peak_envelope_format);
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break;
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case 0x3d2b:
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if (tag_size != 4)
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goto error;
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self->points_per_peak_value = GST_READ_UINT32_BE (tag_data);
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GST_DEBUG (" points per peak value = %u", self->points_per_peak_value);
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break;
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case 0x3d2c:
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if (tag_size != 4)
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goto error;
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self->peak_envelope_block_size = GST_READ_UINT32_BE (tag_data);
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GST_DEBUG (" peak envelope block size = %u",
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self->peak_envelope_block_size);
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break;
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case 0x3d2d:
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if (tag_size != 4)
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goto error;
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self->peak_channels = GST_READ_UINT32_BE (tag_data);
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GST_DEBUG (" peak channels = %u", self->peak_channels);
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break;
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case 0x3d2e:
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if (tag_size != 4)
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goto error;
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self->peak_frames = GST_READ_UINT32_BE (tag_data);
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GST_DEBUG (" peak frames = %u", self->peak_frames);
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break;
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case 0x3d2f:
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if (tag_size != 8)
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goto error;
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self->peak_of_peaks_position = GST_READ_UINT64_BE (tag_data);
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GST_DEBUG (" peak of peaks position = %" G_GINT64_FORMAT,
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self->peak_of_peaks_position);
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break;
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case 0x3d30:
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if (!mxf_timestamp_parse (&self->peak_envelope_timestamp,
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tag_data, tag_size))
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goto error;
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GST_DEBUG (" peak envelope timestamp = %d/%u/%u %u:%u:%u.%u",
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self->peak_envelope_timestamp.year,
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self->peak_envelope_timestamp.month,
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self->peak_envelope_timestamp.day,
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self->peak_envelope_timestamp.hour,
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self->peak_envelope_timestamp.minute,
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self->peak_envelope_timestamp.second,
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(self->peak_envelope_timestamp.quarter_msecond * 1000) / 256);
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break;
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case 0x3d31:
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self->peak_envelope_data = g_memdup (tag_data, tag_size);
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self->peak_envelope_data_length = tag_size;
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GST_DEBUG (" peak evelope data size = %u",
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self->peak_envelope_data_length);
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break;
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default:
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ret =
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MXF_METADATA_BASE_CLASS
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(mxf_metadata_wave_audio_essence_descriptor_parent_class)->handle_tag
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(metadata, primer, tag, tag_data, tag_size);
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break;
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}
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return ret;
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error:
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GST_ERROR
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("Invalid wave audio essence 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_wave_audio_essence_descriptor_init
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(MXFMetadataWaveAudioEssenceDescriptor * self)
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{
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}
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static void
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mxf_metadata_wave_audio_essence_descriptor_class_init
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(MXFMetadataWaveAudioEssenceDescriptorClass * 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_wave_audio_essence_descriptor_handle_tag;
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}
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/* SMPTE 382M Annex 2 */
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G_DEFINE_TYPE (MXFMetadataAES3AudioEssenceDescriptor,
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mxf_metadata_aes3_audio_essence_descriptor,
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MXF_TYPE_METADATA_WAVE_AUDIO_ESSENCE_DESCRIPTOR);
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static void
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mxf_metadata_aes3_audio_essence_descriptor_finalize (GstMiniObject * object)
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{
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MXFMetadataAES3AudioEssenceDescriptor *self =
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MXF_METADATA_AES3_AUDIO_ESSENCE_DESCRIPTOR (object);
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g_free (self->channel_status_mode);
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self->channel_status_mode = NULL;
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g_free (self->fixed_channel_status_data);
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self->fixed_channel_status_data = NULL;
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g_free (self->user_data_mode);
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self->user_data_mode = NULL;
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g_free (self->fixed_user_data);
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self->fixed_user_data = NULL;
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GST_MINI_OBJECT_CLASS
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(mxf_metadata_aes3_audio_essence_descriptor_parent_class)->finalize
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(object);
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}
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static gboolean
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mxf_metadata_aes3_audio_essence_descriptor_handle_tag (MXFMetadataBase *
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metadata, MXFPrimerPack * primer, guint16 tag, const guint8 * tag_data,
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guint tag_size)
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{
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MXFMetadataAES3AudioEssenceDescriptor *self =
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MXF_METADATA_AES3_AUDIO_ESSENCE_DESCRIPTOR (metadata);
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gboolean ret = TRUE;
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switch (tag) {
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case 0x3d0d:
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if (tag_size != 1)
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goto error;
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self->emphasis = GST_READ_UINT8 (tag_data);
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GST_DEBUG (" emphasis = %u", self->emphasis);
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break;
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case 0x3d0f:
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if (tag_size != 2)
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goto error;
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self->block_start_offset = GST_READ_UINT16_BE (tag_data);
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GST_DEBUG (" block start offset = %u", self->block_start_offset);
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break;
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case 0x3d08:
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if (tag_size != 1)
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goto error;
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self->auxiliary_bits_mode = GST_READ_UINT8 (tag_data);
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GST_DEBUG (" auxiliary bits mode = %u", self->auxiliary_bits_mode);
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break;
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case 0x3d10:{
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guint32 len;
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guint i;
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if (tag_size < 8)
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goto error;
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len = GST_READ_UINT32_BE (tag_data);
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GST_DEBUG (" number of channel status mode = %u", len);
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self->n_channel_status_mode = len;
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if (len == 0)
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return TRUE;
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if (GST_READ_UINT32_BE (tag_data + 4) != 1)
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goto error;
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tag_data += 8;
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tag_size -= 8;
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if (tag_size != len)
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goto error;
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self->channel_status_mode = g_new0 (guint8, len);
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for (i = 0; i < len; i++) {
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self->channel_status_mode[i] = GST_READ_UINT8 (tag_data);
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GST_DEBUG (" channel status mode %u = %u", i,
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self->channel_status_mode[i]);
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tag_data++;
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tag_size--;
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}
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break;
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}
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case 0x3d11:{
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guint32 len;
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guint i;
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if (tag_size < 8)
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goto error;
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len = GST_READ_UINT32_BE (tag_data);
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GST_DEBUG (" number of fixed channel status data = %u", len);
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self->n_fixed_channel_status_data = len;
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if (len == 0)
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return TRUE;
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if (GST_READ_UINT32_BE (tag_data + 4) != 24)
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goto error;
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tag_data += 8;
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tag_size -= 8;
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if (tag_size != len * 24)
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goto error;
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self->fixed_channel_status_data =
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g_malloc0 (len * sizeof (guint8 *) + len * 24);
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for (i = 0; i < len; i++) {
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self->fixed_channel_status_data[i] =
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((guint8 *) self->fixed_channel_status_data) +
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len * sizeof (guint8 *) + i * 24;
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memcpy (self->fixed_channel_status_data[i], tag_data, 24);
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GST_DEBUG
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(" fixed channel status data %u = 0x%02x.0x%02x.0x%02x.0x%02x.0x%02x.0x%02x.0x%02x.0x%02x.0x%02x.0x%02x.0x%02x.0x%02x.0x%02x.0x%02x.0x%02x.0x%02x.0x%02x.0x%02x.0x%02x.0x%02x.0x%02x.0x%02x.0x%02x.0x%02x",
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i, self->fixed_channel_status_data[i][0],
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self->fixed_channel_status_data[i][1],
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self->fixed_channel_status_data[i][2],
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self->fixed_channel_status_data[i][3],
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self->fixed_channel_status_data[i][4],
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self->fixed_channel_status_data[i][5],
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self->fixed_channel_status_data[i][6],
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self->fixed_channel_status_data[i][7],
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self->fixed_channel_status_data[i][8],
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self->fixed_channel_status_data[i][9],
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self->fixed_channel_status_data[i][10],
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self->fixed_channel_status_data[i][11],
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self->fixed_channel_status_data[i][12],
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self->fixed_channel_status_data[i][13],
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self->fixed_channel_status_data[i][14],
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self->fixed_channel_status_data[i][15],
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self->fixed_channel_status_data[i][16],
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self->fixed_channel_status_data[i][17],
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self->fixed_channel_status_data[i][18],
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self->fixed_channel_status_data[i][19],
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self->fixed_channel_status_data[i][20],
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self->fixed_channel_status_data[i][21],
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self->fixed_channel_status_data[i][22],
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self->fixed_channel_status_data[i][23]
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);
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tag_data += 24;
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tag_size -= 24;
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}
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break;
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}
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case 0x3d12:{
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guint32 len;
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guint i;
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if (tag_size < 8)
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goto error;
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len = GST_READ_UINT32_BE (tag_data);
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GST_DEBUG (" number of user data mode = %u", len);
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self->n_user_data_mode = len;
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if (len == 0)
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return TRUE;
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if (GST_READ_UINT32_BE (tag_data + 4) != 1)
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goto error;
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tag_data += 8;
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tag_size -= 8;
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if (tag_size != len)
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goto error;
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self->user_data_mode = g_new0 (guint8, len);
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for (i = 0; i < len; i++) {
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self->user_data_mode[i] = GST_READ_UINT8 (tag_data);
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GST_DEBUG (" user data mode %u = %u", i, self->user_data_mode[i]);
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tag_data++;
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tag_size--;
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}
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break;
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}
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case 0x3d13:{
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guint32 len;
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guint i;
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if (tag_size < 8)
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goto error;
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len = GST_READ_UINT32_BE (tag_data);
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GST_DEBUG (" number of fixed user data = %u", len);
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self->n_fixed_user_data = len;
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if (len == 0)
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return TRUE;
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if (GST_READ_UINT32_BE (tag_data + 4) != 24)
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goto error;
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tag_data += 8;
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tag_size -= 8;
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if (tag_size != len * 24)
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goto error;
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self->fixed_user_data = g_malloc0 (len * sizeof (guint8 *) + len * 24);
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for (i = 0; i < len; i++) {
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self->fixed_user_data[i] =
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((guint8 *) self->fixed_user_data) + len * sizeof (guint8 *) +
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i * 24;
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memcpy (self->fixed_user_data[i], tag_data, 24);
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GST_DEBUG
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(" fixed user data %u = 0x%02x.0x%02x.0x%02x.0x%02x.0x%02x.0x%02x.0x%02x.0x%02x.0x%02x.0x%02x.0x%02x.0x%02x.0x%02x.0x%02x.0x%02x.0x%02x.0x%02x.0x%02x.0x%02x.0x%02x.0x%02x.0x%02x.0x%02x.0x%02x",
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i, self->fixed_user_data[i][0],
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self->fixed_user_data[i][1],
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self->fixed_user_data[i][2],
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self->fixed_user_data[i][3],
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self->fixed_user_data[i][4],
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self->fixed_user_data[i][5],
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self->fixed_user_data[i][6],
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self->fixed_user_data[i][7],
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self->fixed_user_data[i][8],
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self->fixed_user_data[i][9],
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self->fixed_user_data[i][10],
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self->fixed_user_data[i][11],
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self->fixed_user_data[i][12],
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self->fixed_user_data[i][13],
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self->fixed_user_data[i][14],
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self->fixed_user_data[i][15],
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self->fixed_user_data[i][16],
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self->fixed_user_data[i][17],
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self->fixed_user_data[i][18],
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self->fixed_user_data[i][19],
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self->fixed_user_data[i][20],
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self->fixed_user_data[i][21],
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self->fixed_user_data[i][22], self->fixed_user_data[i][23]
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);
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tag_data += 24;
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tag_size -= 24;
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}
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break;
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}
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/* TODO: linked timecode track / data_stream_number parsing, see
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* SMPTE 382M Annex 2 */
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default:
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ret =
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MXF_METADATA_BASE_CLASS
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(mxf_metadata_aes3_audio_essence_descriptor_parent_class)->handle_tag
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(metadata, primer, tag, tag_data, tag_size);
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break;
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}
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return ret;
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error:
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GST_ERROR
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("Invalid AES3 audio essence 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_aes3_audio_essence_descriptor_init
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(MXFMetadataAES3AudioEssenceDescriptor * self)
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{
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}
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static void
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mxf_metadata_aes3_audio_essence_descriptor_class_init
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(MXFMetadataAES3AudioEssenceDescriptorClass * klass)
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{
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MXFMetadataBaseClass *metadata_base_class = (MXFMetadataBaseClass *) klass;
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GstMiniObjectClass *miniobject_class = (GstMiniObjectClass *) klass;
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miniobject_class->finalize =
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mxf_metadata_aes3_audio_essence_descriptor_finalize;
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metadata_base_class->handle_tag =
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mxf_metadata_aes3_audio_essence_descriptor_handle_tag;
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}
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gboolean
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mxf_is_aes_bwf_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) {
|
|
GST_ERROR ("No descriptor for this track");
|
|
return FALSE;
|
|
}
|
|
|
|
for (i = 0; i < track->n_descriptor; i++) {
|
|
MXFMetadataFileDescriptor *d = track->descriptor[i];
|
|
MXFUL *key;
|
|
|
|
if (!d)
|
|
continue;
|
|
|
|
key = &d->essence_container;
|
|
/* SMPTE 382M 9 */
|
|
if (mxf_is_generic_container_essence_container_label (key) &&
|
|
key->u[12] == 0x02 &&
|
|
key->u[13] == 0x06 &&
|
|
(key->u[14] == 0x01 ||
|
|
key->u[14] == 0x02 ||
|
|
key->u[14] == 0x03 ||
|
|
key->u[14] == 0x04 || key->u[14] == 0x08 || key->u[14] == 0x09))
|
|
return TRUE;
|
|
}
|
|
|
|
|
|
return FALSE;
|
|
}
|
|
|
|
static GstFlowReturn
|
|
mxf_bwf_handle_essence_element (const MXFUL * key, GstBuffer * buffer,
|
|
GstCaps * caps, MXFMetadataGenericPackage * package,
|
|
MXFMetadataTrack * track, MXFMetadataStructuralComponent * component,
|
|
gpointer mapping_data, GstBuffer ** outbuf)
|
|
{
|
|
*outbuf = buffer;
|
|
|
|
/* SMPTE 382M Table 1: Check if this is some kind of Wave element */
|
|
if (key->u[12] != 0x16 || (key->u[14] != 0x01 && key->u[14] != 0x02
|
|
&& key->u[14] != 0x0b)) {
|
|
GST_ERROR ("Invalid BWF essence element");
|
|
return GST_FLOW_ERROR;
|
|
}
|
|
|
|
/* FIXME: check if the size is a multiply of the unit size, ... */
|
|
return GST_FLOW_OK;
|
|
}
|
|
|
|
static GstFlowReturn
|
|
mxf_aes3_handle_essence_element (const MXFUL * key, GstBuffer * buffer,
|
|
GstCaps * caps, MXFMetadataGenericPackage * package,
|
|
MXFMetadataTrack * track, MXFMetadataStructuralComponent * component,
|
|
gpointer mapping_data, GstBuffer ** outbuf)
|
|
{
|
|
*outbuf = buffer;
|
|
|
|
/* SMPTE 382M Table 1: Check if this is some kind of Wave element */
|
|
if (key->u[12] != 0x16 || (key->u[14] != 0x03 && key->u[14] != 0x04
|
|
&& key->u[14] != 0x0c)) {
|
|
GST_ERROR ("Invalid AES3 essence element");
|
|
return GST_FLOW_ERROR;
|
|
}
|
|
|
|
/* FIXME: check if the size is a multiply of the unit size, ... */
|
|
return GST_FLOW_OK;
|
|
}
|
|
|
|
|
|
|
|
/* SMPTE RP224 */
|
|
static const MXFUL mxf_sound_essence_compression_uncompressed =
|
|
{ {0x06, 0x0E, 0x2B, 0x34, 0x04, 0x01, 0x01, 0x01, 0x04, 0x02, 0x02, 0x01,
|
|
0x7F, 0x00, 0x00, 0x00}
|
|
};
|
|
|
|
static const MXFUL mxf_sound_essence_compression_aiff =
|
|
{ {0x06, 0x0E, 0x2B, 0x34, 0x04, 0x01, 0x01, 0x07, 0x04, 0x02, 0x02, 0x01,
|
|
0x7E, 0x00, 0x00, 0x00}
|
|
};
|
|
|
|
static const MXFUL mxf_sound_essence_compression_alaw =
|
|
{ {0x06, 0x0E, 0x2B, 0x34, 0x04, 0x01, 0x01, 0x03, 0x04, 0x02, 0x02, 0x02,
|
|
0x03, 0x01, 0x01, 0x00}
|
|
};
|
|
|
|
static GstCaps *
|
|
mxf_bwf_create_caps (MXFMetadataGenericPackage * package,
|
|
MXFMetadataTrack * track,
|
|
MXFMetadataGenericSoundEssenceDescriptor * descriptor, GstTagList ** tags,
|
|
MXFEssenceElementHandler * handler, gpointer * mapping_data)
|
|
{
|
|
GstCaps *ret = NULL;
|
|
MXFMetadataWaveAudioEssenceDescriptor *wa_descriptor = NULL;
|
|
gchar str[48];
|
|
gchar *codec_name = NULL;
|
|
|
|
if (MXF_IS_METADATA_WAVE_AUDIO_ESSENCE_DESCRIPTOR (descriptor))
|
|
wa_descriptor = (MXFMetadataWaveAudioEssenceDescriptor *) descriptor;
|
|
|
|
/* TODO: Handle width=!depth, needs shifting of samples */
|
|
|
|
/* FIXME: set a channel layout */
|
|
|
|
if (mxf_ul_is_zero (&descriptor->sound_essence_compression) ||
|
|
mxf_ul_is_equal (&descriptor->sound_essence_compression,
|
|
&mxf_sound_essence_compression_uncompressed)) {
|
|
guint block_align;
|
|
|
|
if (descriptor->channel_count == 0 ||
|
|
descriptor->quantization_bits == 0 ||
|
|
descriptor->audio_sampling_rate.n == 0 ||
|
|
descriptor->audio_sampling_rate.d == 0) {
|
|
GST_ERROR ("Invalid descriptor");
|
|
return NULL;
|
|
}
|
|
if (wa_descriptor && wa_descriptor->block_align != 0)
|
|
block_align = wa_descriptor->block_align;
|
|
else
|
|
block_align =
|
|
(GST_ROUND_UP_8 (descriptor->quantization_bits) *
|
|
descriptor->channel_count) / 8;
|
|
|
|
ret = gst_caps_new_simple ("audio/x-raw-int",
|
|
"rate", G_TYPE_INT,
|
|
(gint) (((gdouble) descriptor->audio_sampling_rate.n) /
|
|
((gdouble) descriptor->audio_sampling_rate.d) + 0.5), "channels",
|
|
G_TYPE_INT, descriptor->channel_count, "signed", G_TYPE_BOOLEAN,
|
|
(block_align != 1), "endianness", G_TYPE_INT, G_LITTLE_ENDIAN, "depth",
|
|
G_TYPE_INT, (block_align / descriptor->channel_count) * 8, "width",
|
|
G_TYPE_INT, (block_align / descriptor->channel_count) * 8, NULL);
|
|
|
|
codec_name =
|
|
g_strdup_printf ("Uncompressed %u-bit little endian integer PCM audio",
|
|
(block_align / descriptor->channel_count) * 8);
|
|
} else if (mxf_ul_is_equal (&descriptor->sound_essence_compression,
|
|
&mxf_sound_essence_compression_aiff)) {
|
|
guint block_align;
|
|
|
|
if (descriptor->channel_count == 0 ||
|
|
descriptor->quantization_bits == 0 ||
|
|
descriptor->audio_sampling_rate.n == 0 ||
|
|
descriptor->audio_sampling_rate.d == 0) {
|
|
GST_ERROR ("Invalid descriptor");
|
|
return NULL;
|
|
}
|
|
|
|
if (wa_descriptor && wa_descriptor->block_align != 0)
|
|
block_align = wa_descriptor->block_align;
|
|
else
|
|
block_align =
|
|
(GST_ROUND_UP_8 (descriptor->quantization_bits) *
|
|
descriptor->channel_count) / 8;
|
|
|
|
ret = gst_caps_new_simple ("audio/x-raw-int",
|
|
"rate", G_TYPE_INT,
|
|
(gint) (((gdouble) descriptor->audio_sampling_rate.n) /
|
|
((gdouble) descriptor->audio_sampling_rate.d) + 0.5), "channels",
|
|
G_TYPE_INT, descriptor->channel_count, "signed", G_TYPE_BOOLEAN,
|
|
(block_align != 1), "endianness", G_TYPE_INT, G_BIG_ENDIAN, "depth",
|
|
G_TYPE_INT, (block_align / descriptor->channel_count) * 8, "width",
|
|
G_TYPE_INT, (block_align / descriptor->channel_count) * 8, NULL);
|
|
|
|
codec_name =
|
|
g_strdup_printf ("Uncompressed %u-bit big endian integer PCM audio",
|
|
(block_align / descriptor->channel_count) * 8);
|
|
} else if (mxf_ul_is_equal (&descriptor->sound_essence_compression,
|
|
&mxf_sound_essence_compression_alaw)) {
|
|
|
|
if (descriptor->audio_sampling_rate.n != 0 ||
|
|
descriptor->audio_sampling_rate.d != 0 ||
|
|
descriptor->channel_count != 0) {
|
|
GST_ERROR ("Invalid descriptor");
|
|
return NULL;
|
|
}
|
|
ret = gst_caps_new_simple ("audio/x-alaw", "rate", G_TYPE_INT,
|
|
(gint) (((gdouble) descriptor->audio_sampling_rate.n) /
|
|
((gdouble) descriptor->audio_sampling_rate.d) + 0.5),
|
|
"channels", G_TYPE_INT, descriptor->channel_count);
|
|
codec_name = g_strdup ("A-law encoded audio");
|
|
} else {
|
|
GST_ERROR ("Unsupported sound essence compression: %s",
|
|
mxf_ul_to_string (&descriptor->sound_essence_compression, str));
|
|
}
|
|
|
|
if (!*tags)
|
|
*tags = gst_tag_list_new ();
|
|
|
|
if (codec_name) {
|
|
gst_tag_list_add (*tags, GST_TAG_MERGE_APPEND, GST_TAG_AUDIO_CODEC,
|
|
codec_name, NULL);
|
|
g_free (codec_name);
|
|
}
|
|
|
|
if (wa_descriptor && wa_descriptor->avg_bps)
|
|
gst_tag_list_add (*tags, GST_TAG_MERGE_APPEND, GST_TAG_BITRATE,
|
|
wa_descriptor->avg_bps * 8, NULL);
|
|
|
|
*handler = mxf_bwf_handle_essence_element;
|
|
|
|
return ret;
|
|
}
|
|
|
|
static GstCaps *
|
|
mxf_aes3_create_caps (MXFMetadataGenericPackage * package,
|
|
MXFMetadataTrack * track,
|
|
MXFMetadataGenericSoundEssenceDescriptor * descriptor, GstTagList ** tags,
|
|
MXFEssenceElementHandler * handler, gpointer * mapping_data)
|
|
{
|
|
GstCaps *ret = NULL;
|
|
MXFMetadataWaveAudioEssenceDescriptor *wa_descriptor = NULL;
|
|
gchar *codec_name = NULL;
|
|
guint block_align;
|
|
|
|
if (MXF_IS_METADATA_WAVE_AUDIO_ESSENCE_DESCRIPTOR (descriptor))
|
|
wa_descriptor = (MXFMetadataWaveAudioEssenceDescriptor *) descriptor;
|
|
|
|
/* FIXME: set a channel layout */
|
|
|
|
if (descriptor->channel_count == 0 ||
|
|
descriptor->quantization_bits == 0 ||
|
|
descriptor->audio_sampling_rate.n == 0 ||
|
|
descriptor->audio_sampling_rate.d == 0) {
|
|
GST_ERROR ("Invalid descriptor");
|
|
return NULL;
|
|
}
|
|
if (wa_descriptor && wa_descriptor->block_align != 0)
|
|
block_align = wa_descriptor->block_align;
|
|
else
|
|
block_align =
|
|
(GST_ROUND_UP_8 (descriptor->quantization_bits) *
|
|
descriptor->channel_count) / 8;
|
|
|
|
ret = gst_caps_new_simple ("audio/x-raw-int",
|
|
"rate", G_TYPE_INT,
|
|
(gint) (((gdouble) descriptor->audio_sampling_rate.n) /
|
|
((gdouble) descriptor->audio_sampling_rate.d) + 0.5), "channels",
|
|
G_TYPE_INT, descriptor->channel_count, "signed", G_TYPE_BOOLEAN,
|
|
(block_align != 1), "endianness", G_TYPE_INT, G_LITTLE_ENDIAN, "depth",
|
|
G_TYPE_INT, (block_align / descriptor->channel_count) * 8, "width",
|
|
G_TYPE_INT, (block_align / descriptor->channel_count) * 8, NULL);
|
|
|
|
codec_name =
|
|
g_strdup_printf ("Uncompressed %u-bit AES3 audio",
|
|
(block_align / descriptor->channel_count) * 8);
|
|
|
|
if (!*tags)
|
|
*tags = gst_tag_list_new ();
|
|
|
|
gst_tag_list_add (*tags, GST_TAG_MERGE_APPEND, GST_TAG_AUDIO_CODEC,
|
|
codec_name, GST_TAG_BITRATE, block_align * 8, NULL);
|
|
g_free (codec_name);
|
|
|
|
*handler = mxf_aes3_handle_essence_element;
|
|
|
|
return ret;
|
|
}
|
|
|
|
GstCaps *
|
|
mxf_aes_bwf_create_caps (MXFMetadataGenericPackage * package,
|
|
MXFMetadataTrack * track, GstTagList ** tags,
|
|
MXFEssenceElementHandler * handler, gpointer * mapping_data)
|
|
{
|
|
MXFMetadataGenericSoundEssenceDescriptor *s = NULL;
|
|
gboolean bwf = FALSE;
|
|
guint i;
|
|
|
|
g_return_val_if_fail (package != NULL, NULL);
|
|
g_return_val_if_fail (track != NULL, NULL);
|
|
|
|
if (track->descriptor == NULL) {
|
|
GST_ERROR ("No descriptor found for this track");
|
|
return NULL;
|
|
}
|
|
|
|
for (i = 0; i < track->n_descriptor; i++) {
|
|
if (!track->descriptor[i])
|
|
continue;
|
|
|
|
if (MXF_IS_METADATA_GENERIC_SOUND_ESSENCE_DESCRIPTOR (track->descriptor[i])
|
|
&& (track->descriptor[i]->essence_container.u[14] == 0x01
|
|
|| track->descriptor[i]->essence_container.u[14] == 0x02
|
|
|| track->descriptor[i]->essence_container.u[14] == 0x08)) {
|
|
s = (MXFMetadataGenericSoundEssenceDescriptor *) track->descriptor[i];
|
|
bwf = TRUE;
|
|
break;
|
|
} else
|
|
if (MXF_IS_METADATA_GENERIC_SOUND_ESSENCE_DESCRIPTOR (track->descriptor
|
|
[i])
|
|
&& (track->descriptor[i]->essence_container.u[14] == 0x03
|
|
|| track->descriptor[i]->essence_container.u[14] == 0x04
|
|
|| track->descriptor[i]->essence_container.u[14] == 0x09)) {
|
|
|
|
s = (MXFMetadataGenericSoundEssenceDescriptor *) track->descriptor[i];
|
|
bwf = FALSE;
|
|
break;
|
|
}
|
|
}
|
|
|
|
if (!s) {
|
|
GST_ERROR ("No descriptor found for this track");
|
|
return NULL;
|
|
} else if (bwf) {
|
|
return mxf_bwf_create_caps (package, track, s, tags, handler, mapping_data);
|
|
} else {
|
|
return mxf_aes3_create_caps (package, track, s, tags, handler,
|
|
mapping_data);
|
|
}
|
|
|
|
return NULL;
|
|
}
|
|
|
|
void
|
|
mxf_aes_bwf_init (void)
|
|
{
|
|
mxf_metadata_register (0x0148,
|
|
MXF_TYPE_METADATA_WAVE_AUDIO_ESSENCE_DESCRIPTOR);
|
|
mxf_metadata_register (0x0147,
|
|
MXF_TYPE_METADATA_AES3_AUDIO_ESSENCE_DESCRIPTOR);
|
|
}
|