mirrors/gstreamer
mirrors/gstreamer
1
1
Fork 0
mirror of https://gitlab.freedesktop.org/gstreamer/gstreamer.git synced 2024-11-03 16:09:39 +00:00
Code Issues 1 Projects Releases Wiki Activity
gstreamer/gst/mxf/mxfaes-bwf.c
Sebastian Dröge 830e89b7e9 mxfdemux: Take temporal reordering from the index table into account 
This is needed to know the PTS, without that we only know the DTS and
using that also for the PTS is wrong unless we have an intra-only codec.

If we can't get the temporal reordering from the index table, don't set
any PTS for non-intra-only codecs and let decoders figure out something.

https://bugzilla.gnome.org/show_bug.cgi?id=784027
2017-06-27 10:47:44 +03:00

1650 lines
52 KiB
C
Raw Blame History

/* GStreamer
* Copyright (C) 2008-2009 Sebastian Dröge <sebastian.droege@collabora.co.uk>
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Library General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Library General Public License for more details.
*
* You should have received a copy of the GNU Library General Public
* License along with this library; if not, write to the
* Free Software Foundation, Inc., 51 Franklin St, Fifth Floor,
* Boston, MA 02110-1301, USA.
*/
/* Implementation of SMPTE 382M - Mapping AES3 and Broadcast Wave
* Audio into the MXF Generic Container
*/
/* TODO:
* - Handle the case were a track only references specific channels
* of the essence (ChannelID property)
* - Add support for more codecs
* - Handle more of the metadata inside the descriptors
*/
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
#include <gst/gst.h>
#include <gst/audio/audio.h>
#include <string.h>
#include "mxfaes-bwf.h"
#include "mxfessence.h"
#include "mxfquark.h"
GST_DEBUG_CATEGORY_EXTERN (mxf_debug);
#define GST_CAT_DEFAULT mxf_debug
/* SMPTE 382M Annex 1 */
#define MXF_TYPE_METADATA_WAVE_AUDIO_ESSENCE_DESCRIPTOR \
(mxf_metadata_wave_audio_essence_descriptor_get_type())
#define MXF_METADATA_WAVE_AUDIO_ESSENCE_DESCRIPTOR(obj) \
(G_TYPE_CHECK_INSTANCE_CAST((obj),MXF_TYPE_METADATA_WAVE_AUDIO_ESSENCE_DESCRIPTOR, MXFMetadataWaveAudioEssenceDescriptor))
#define MXF_IS_METADATA_WAVE_AUDIO_ESSENCE_DESCRIPTOR(obj) \
(G_TYPE_CHECK_INSTANCE_TYPE((obj),MXF_TYPE_METADATA_WAVE_AUDIO_ESSENCE_DESCRIPTOR))
typedef struct _MXFMetadataWaveAudioEssenceDescriptor
MXFMetadataWaveAudioEssenceDescriptor;
typedef MXFMetadataClass MXFMetadataWaveAudioEssenceDescriptorClass;
GType mxf_metadata_wave_audio_essence_descriptor_get_type (void);
struct _MXFMetadataWaveAudioEssenceDescriptor
{
MXFMetadataGenericSoundEssenceDescriptor parent;
guint16 block_align;
guint8 sequence_offset;
guint32 avg_bps;
MXFUL channel_assignment;
guint32 peak_envelope_version;
guint32 peak_envelope_format;
guint32 points_per_peak_value;
guint32 peak_envelope_block_size;
guint32 peak_channels;
guint32 peak_frames;
gint64 peak_of_peaks_position;
MXFTimestamp peak_envelope_timestamp;
guint8 *peak_envelope_data;
guint16 peak_envelope_data_length;
};
/* SMPTE 382M Annex 2 */
#define MXF_TYPE_METADATA_AES3_AUDIO_ESSENCE_DESCRIPTOR \
(mxf_metadata_aes3_audio_essence_descriptor_get_type())
#define MXF_METADATA_AES3_AUDIO_ESSENCE_DESCRIPTOR(obj) \
(G_TYPE_CHECK_INSTANCE_CAST((obj),MXF_TYPE_METADATA_AES3_AUDIO_ESSENCE_DESCRIPTOR, MXFMetadataAES3AudioEssenceDescriptor))
#define MXF_IS_METADATA_AES3_AUDIO_ESSENCE_DESCRIPTOR(obj) \
(G_TYPE_CHECK_INSTANCE_TYPE((obj),MXF_TYPE_METADATA_AES3_AUDIO_ESSENCE_DESCRIPTOR))
typedef struct _MXFMetadataAES3AudioEssenceDescriptor
MXFMetadataAES3AudioEssenceDescriptor;
typedef MXFMetadataClass MXFMetadataAES3AudioEssenceDescriptorClass;
GType mxf_metadata_aes3_audio_essence_descriptor_get_type (void);
struct _MXFMetadataAES3AudioEssenceDescriptor
{
MXFMetadataWaveAudioEssenceDescriptor parent;
guint8 emphasis;
guint16 block_start_offset;
guint8 auxiliary_bits_mode;
guint32 n_channel_status_mode;
guint8 *channel_status_mode;
guint32 n_fixed_channel_status_data;
guint8 **fixed_channel_status_data;
guint32 n_user_data_mode;
guint8 *user_data_mode;
guint32 n_fixed_user_data;
guint8 **fixed_user_data;
guint32 linked_timecode_track_id;
guint8 stream_number;
};
/* SMPTE 382M Annex 1 */
G_DEFINE_TYPE (MXFMetadataWaveAudioEssenceDescriptor,
mxf_metadata_wave_audio_essence_descriptor,
MXF_TYPE_METADATA_GENERIC_SOUND_ESSENCE_DESCRIPTOR);
static gboolean
mxf_metadata_wave_audio_essence_descriptor_handle_tag (MXFMetadataBase *
metadata, MXFPrimerPack * primer, guint16 tag, const guint8 * tag_data,
guint tag_size)
{
MXFMetadataWaveAudioEssenceDescriptor *self =
MXF_METADATA_WAVE_AUDIO_ESSENCE_DESCRIPTOR (metadata);
gboolean ret = TRUE;
#ifndef GST_DISABLE_GST_DEBUG
gchar str[48];
#endif
switch (tag) {
case 0x3d0a:
if (tag_size != 2)
goto error;
self->block_align = GST_READ_UINT16_BE (tag_data);
GST_DEBUG (" block align = %u", self->block_align);
break;
case 0x3d0b:
if (tag_size != 1)
goto error;
self->sequence_offset = GST_READ_UINT8 (tag_data);
GST_DEBUG (" sequence offset = %u", self->sequence_offset);
break;
case 0x3d09:
if (tag_size != 4)
goto error;
self->avg_bps = GST_READ_UINT32_BE (tag_data);
GST_DEBUG (" average bps = %u", self->avg_bps);
break;
case 0x3d32:
if (tag_size != 16)
goto error;
memcpy (&self->channel_assignment, tag_data, 16);
GST_DEBUG (" channel assignment = %s",
mxf_ul_to_string (&self->channel_assignment, str));
break;
case 0x3d29:
if (tag_size != 4)
goto error;
self->peak_envelope_version = GST_READ_UINT32_BE (tag_data);
GST_DEBUG (" peak envelope version = %u", self->peak_envelope_version);
break;
case 0x3d2a:
if (tag_size != 4)
goto error;
self->peak_envelope_format = GST_READ_UINT32_BE (tag_data);
GST_DEBUG (" peak envelope format = %u", self->peak_envelope_format);
break;
case 0x3d2b:
if (tag_size != 4)
goto error;
self->points_per_peak_value = GST_READ_UINT32_BE (tag_data);
GST_DEBUG (" points per peak value = %u", self->points_per_peak_value);
break;
case 0x3d2c:
if (tag_size != 4)
goto error;
self->peak_envelope_block_size = GST_READ_UINT32_BE (tag_data);
GST_DEBUG (" peak envelope block size = %u",
self->peak_envelope_block_size);
break;
case 0x3d2d:
if (tag_size != 4)
goto error;
self->peak_channels = GST_READ_UINT32_BE (tag_data);
GST_DEBUG (" peak channels = %u", self->peak_channels);
break;
case 0x3d2e:
if (tag_size != 4)
goto error;
self->peak_frames = GST_READ_UINT32_BE (tag_data);
GST_DEBUG (" peak frames = %u", self->peak_frames);
break;
case 0x3d2f:
if (tag_size != 8)
goto error;
self->peak_of_peaks_position = GST_READ_UINT64_BE (tag_data);
GST_DEBUG (" peak of peaks position = %" G_GINT64_FORMAT,
self->peak_of_peaks_position);
break;
case 0x3d30:
if (!mxf_timestamp_parse (&self->peak_envelope_timestamp,
tag_data, tag_size))
goto error;
GST_DEBUG (" peak envelope timestamp = %s",
mxf_timestamp_to_string (&self->peak_envelope_timestamp, str));
break;
case 0x3d31:
self->peak_envelope_data = g_memdup (tag_data, tag_size);
self->peak_envelope_data_length = tag_size;
GST_DEBUG (" peak evelope data size = %u",
self->peak_envelope_data_length);
break;
default:
ret =
MXF_METADATA_BASE_CLASS
(mxf_metadata_wave_audio_essence_descriptor_parent_class)->handle_tag
(metadata, primer, tag, tag_data, tag_size);
break;
}
return ret;
error:
GST_ERROR
("Invalid wave audio essence descriptor local tag 0x%04x of size %u", tag,
tag_size);
return FALSE;
}
static GstStructure *
mxf_metadata_wave_audio_essence_descriptor_to_structure (MXFMetadataBase * m)
{
GstStructure *ret =
MXF_METADATA_BASE_CLASS
(mxf_metadata_wave_audio_essence_descriptor_parent_class)->to_structure
(m);
MXFMetadataWaveAudioEssenceDescriptor *self =
MXF_METADATA_WAVE_AUDIO_ESSENCE_DESCRIPTOR (m);
gchar str[48];
gst_structure_id_set (ret, MXF_QUARK (BLOCK_ALIGN), G_TYPE_UINT,
self->block_align, NULL);
if (self->sequence_offset)
gst_structure_id_set (ret, MXF_QUARK (SEQUENCE_OFFSET), G_TYPE_UCHAR,
self->sequence_offset, NULL);
if (self->avg_bps)
gst_structure_id_set (ret, MXF_QUARK (AVG_BPS), G_TYPE_UINT, self->avg_bps,
NULL);
if (!mxf_ul_is_zero (&self->channel_assignment)) {
gst_structure_id_set (ret, MXF_QUARK (CHANNEL_ASSIGNMENT), G_TYPE_STRING,
mxf_ul_to_string (&self->channel_assignment, str), NULL);
}
if (self->peak_envelope_version)
gst_structure_id_set (ret, MXF_QUARK (PEAK_ENVELOPE_VERSION), G_TYPE_UINT,
self->peak_envelope_version, NULL);
if (self->peak_envelope_format)
gst_structure_id_set (ret, MXF_QUARK (PEAK_ENVELOPE_FORMAT), G_TYPE_UINT,
self->peak_envelope_format, NULL);
if (self->points_per_peak_value)
gst_structure_id_set (ret, MXF_QUARK (POINTS_PER_PEAK_VALUE), G_TYPE_UINT,
self->points_per_peak_value, NULL);
if (self->peak_envelope_block_size)
gst_structure_id_set (ret, MXF_QUARK (PEAK_ENVELOPE_BLOCK_SIZE),
G_TYPE_UINT, self->peak_envelope_block_size, NULL);
if (self->peak_channels)
gst_structure_id_set (ret, MXF_QUARK (PEAK_CHANNELS), G_TYPE_UINT,
self->peak_channels, NULL);
if (self->peak_frames)
gst_structure_id_set (ret, MXF_QUARK (PEAK_FRAMES), G_TYPE_UINT,
self->peak_frames, NULL);
if (self->peak_of_peaks_position)
gst_structure_id_set (ret, MXF_QUARK (PEAK_OF_PEAKS_POSITION), G_TYPE_INT64,
self->peak_of_peaks_position, NULL);
if (!mxf_timestamp_is_unknown (&self->peak_envelope_timestamp))
gst_structure_id_set (ret, MXF_QUARK (PEAK_ENVELOPE_TIMESTAMP),
G_TYPE_STRING, mxf_timestamp_to_string (&self->peak_envelope_timestamp,
str), NULL);
if (self->peak_envelope_data) {
GstBuffer *buf = gst_buffer_new_and_alloc (self->peak_envelope_data_length);
GstMapInfo map;
gst_buffer_map (buf, &map, GST_MAP_WRITE);
memcpy (map.data, self->peak_envelope_data,
self->peak_envelope_data_length);
gst_buffer_unmap (buf, &map);
gst_structure_id_set (ret, MXF_QUARK (PEAK_ENVELOPE_DATA), GST_TYPE_BUFFER,
buf, NULL);
gst_buffer_unref (buf);
}
return ret;
}
static GList *
mxf_metadata_wave_audio_essence_descriptor_write_tags (MXFMetadataBase * m,
MXFPrimerPack * primer)
{
MXFMetadataWaveAudioEssenceDescriptor *self =
MXF_METADATA_WAVE_AUDIO_ESSENCE_DESCRIPTOR (m);
GList *ret =
MXF_METADATA_BASE_CLASS
(mxf_metadata_wave_audio_essence_descriptor_parent_class)->write_tags (m,
primer);
MXFLocalTag *t;
static const guint8 block_align_ul[] = {
0x06, 0x0E, 0x2B, 0x34, 0x01, 0x01, 0x01, 0x05,
0x04, 0x02, 0x03, 0x02, 0x01, 0x00, 0x00, 0x00
};
static const guint8 sequence_offset_ul[] = {
0x06, 0x0E, 0x2B, 0x34, 0x01, 0x01, 0x01, 0x05,
0x04, 0x02, 0x03, 0x02, 0x02, 0x00, 0x00, 0x00
};
static const guint8 avg_bps_ul[] = {
0x06, 0x0E, 0x2B, 0x34, 0x01, 0x01, 0x01, 0x05,
0x04, 0x02, 0x03, 0x03, 0x05, 0x00, 0x00, 0x00
};
static const guint8 channel_assignment_ul[] = {
0x06, 0x0E, 0x2B, 0x34, 0x01, 0x01, 0x01, 0x07,
0x04, 0x02, 0x01, 0x01, 0x05, 0x00, 0x00, 0x00
};
static const guint8 peak_envelope_version_ul[] = {
0x06, 0x0E, 0x2B, 0x34, 0x01, 0x01, 0x01, 0x08,
0x04, 0x02, 0x03, 0x01, 0x06, 0x00, 0x00, 0x00
};
static const guint8 peak_envelope_format_ul[] = {
0x06, 0x0E, 0x2B, 0x34, 0x01, 0x01, 0x01, 0x08,
0x04, 0x02, 0x03, 0x01, 0x07, 0x00, 0x00, 0x00
};
static const guint8 points_per_peak_value_ul[] = {
0x06, 0x0E, 0x2B, 0x34, 0x01, 0x01, 0x01, 0x08,
0x04, 0x02, 0x03, 0x01, 0x08, 0x00, 0x00, 0x00
};
static const guint8 peak_envelope_block_size_ul[] = {
0x06, 0x0E, 0x2B, 0x34, 0x01, 0x01, 0x01, 0x08,
0x04, 0x02, 0x03, 0x01, 0x09, 0x00, 0x00, 0x00
};
static const guint8 peak_channels_ul[] = {
0x06, 0x0E, 0x2B, 0x34, 0x01, 0x01, 0x01, 0x08,
0x04, 0x02, 0x03, 0x01, 0x0A, 0x00, 0x00, 0x00
};
static const guint8 peak_frames_ul[] = {
0x06, 0x0E, 0x2B, 0x34, 0x01, 0x01, 0x01, 0x08,
0x04, 0x02, 0x03, 0x01, 0x0B, 0x00, 0x00, 0x00
};
static const guint8 peak_of_peaks_position_ul[] = {
0x06, 0x0E, 0x2B, 0x34, 0x01, 0x01, 0x01, 0x08,
0x04, 0x02, 0x03, 0x01, 0x0C, 0x00, 0x00, 0x00
};
static const guint8 peak_envelope_timestamp_ul[] = {
0x06, 0x0E, 0x2B, 0x34, 0x01, 0x01, 0x01, 0x08,
0x04, 0x02, 0x03, 0x01, 0x0D, 0x00, 0x00, 0x00
};
static const guint8 peak_envelope_data_ul[] = {
0x06, 0x0E, 0x2B, 0x34, 0x01, 0x01, 0x01, 0x08,
0x04, 0x02, 0x03, 0x01, 0x0E, 0x00, 0x00, 0x00
};
t = g_slice_new0 (MXFLocalTag);
memcpy (&t->ul, &block_align_ul, 16);
t->size = 2;
t->data = g_slice_alloc (t->size);
t->g_slice = TRUE;
GST_WRITE_UINT16_BE (t->data, self->block_align);
mxf_primer_pack_add_mapping (primer, 0x3d0a, &t->ul);
ret = g_list_prepend (ret, t);
if (self->sequence_offset) {
t = g_slice_new0 (MXFLocalTag);
memcpy (&t->ul, &sequence_offset_ul, 16);
t->size = 1;
t->data = g_slice_alloc (t->size);
t->g_slice = TRUE;
GST_WRITE_UINT8 (t->data, self->sequence_offset);
mxf_primer_pack_add_mapping (primer, 0x3d0b, &t->ul);
ret = g_list_prepend (ret, t);
}
t = g_slice_new0 (MXFLocalTag);
memcpy (&t->ul, &avg_bps_ul, 16);
t->size = 4;
t->data = g_slice_alloc (t->size);
t->g_slice = TRUE;
GST_WRITE_UINT32_BE (t->data, self->avg_bps);
mxf_primer_pack_add_mapping (primer, 0x3d09, &t->ul);
ret = g_list_prepend (ret, t);
if (!mxf_ul_is_zero (&self->channel_assignment)) {
t = g_slice_new0 (MXFLocalTag);
memcpy (&t->ul, &channel_assignment_ul, 16);
t->size = 16;
t->data = g_slice_alloc (t->size);
t->g_slice = TRUE;
memcpy (t->data, &self->channel_assignment, 16);
mxf_primer_pack_add_mapping (primer, 0x3d32, &t->ul);
ret = g_list_prepend (ret, t);
}
if (self->peak_envelope_version) {
t = g_slice_new0 (MXFLocalTag);
memcpy (&t->ul, &peak_envelope_version_ul, 16);
t->size = 4;
t->data = g_slice_alloc (t->size);
t->g_slice = TRUE;
GST_WRITE_UINT32_BE (t->data, self->peak_envelope_version);
mxf_primer_pack_add_mapping (primer, 0x3d29, &t->ul);
ret = g_list_prepend (ret, t);
}
if (self->peak_envelope_format) {
t = g_slice_new0 (MXFLocalTag);
memcpy (&t->ul, &peak_envelope_format_ul, 16);
t->size = 4;
t->data = g_slice_alloc (t->size);
t->g_slice = TRUE;
GST_WRITE_UINT32_BE (t->data, self->peak_envelope_format);
mxf_primer_pack_add_mapping (primer, 0x3d2a, &t->ul);
ret = g_list_prepend (ret, t);
}
if (self->points_per_peak_value) {
t = g_slice_new0 (MXFLocalTag);
memcpy (&t->ul, &points_per_peak_value_ul, 16);
t->size = 4;
t->data = g_slice_alloc (t->size);
t->g_slice = TRUE;
GST_WRITE_UINT32_BE (t->data, self->points_per_peak_value);
mxf_primer_pack_add_mapping (primer, 0x3d2b, &t->ul);
ret = g_list_prepend (ret, t);
}
if (self->peak_envelope_block_size) {
t = g_slice_new0 (MXFLocalTag);
memcpy (&t->ul, &peak_envelope_block_size_ul, 16);
t->size = 4;
t->data = g_slice_alloc (t->size);
t->g_slice = TRUE;
GST_WRITE_UINT32_BE (t->data, self->peak_envelope_block_size);
mxf_primer_pack_add_mapping (primer, 0x3d2c, &t->ul);
ret = g_list_prepend (ret, t);
}
if (self->peak_channels) {
t = g_slice_new0 (MXFLocalTag);
memcpy (&t->ul, &peak_channels_ul, 16);
t->size = 4;
t->data = g_slice_alloc (t->size);
t->g_slice = TRUE;
GST_WRITE_UINT32_BE (t->data, self->peak_channels);
mxf_primer_pack_add_mapping (primer, 0x3d2d, &t->ul);
ret = g_list_prepend (ret, t);
}
if (self->peak_frames) {
t = g_slice_new0 (MXFLocalTag);
memcpy (&t->ul, &peak_frames_ul, 16);
t->size = 4;
t->data = g_slice_alloc (t->size);
t->g_slice = TRUE;
GST_WRITE_UINT32_BE (t->data, self->peak_frames);
mxf_primer_pack_add_mapping (primer, 0x3d2e, &t->ul);
ret = g_list_prepend (ret, t);
}
if (self->peak_of_peaks_position) {
t = g_slice_new0 (MXFLocalTag);
memcpy (&t->ul, &peak_of_peaks_position_ul, 16);
t->size = 8;
t->data = g_slice_alloc (t->size);
t->g_slice = TRUE;
GST_WRITE_UINT64_BE (t->data, self->peak_of_peaks_position);
mxf_primer_pack_add_mapping (primer, 0x3d2f, &t->ul);
ret = g_list_prepend (ret, t);
}
if (!mxf_timestamp_is_unknown (&self->peak_envelope_timestamp)) {
t = g_slice_new0 (MXFLocalTag);
memcpy (&t->ul, &peak_envelope_timestamp_ul, 16);
t->size = 8;
t->data = g_slice_alloc (t->size);
t->g_slice = TRUE;
mxf_timestamp_write (&self->peak_envelope_timestamp, t->data);
mxf_primer_pack_add_mapping (primer, 0x3d30, &t->ul);
ret = g_list_prepend (ret, t);
}
if (self->peak_envelope_data) {
t = g_slice_new0 (MXFLocalTag);
memcpy (&t->ul, &peak_envelope_data_ul, 16);
t->size = self->peak_envelope_data_length;
t->data = g_memdup (self->peak_envelope_data, t->size);
mxf_primer_pack_add_mapping (primer, 0x3d31, &t->ul);
ret = g_list_prepend (ret, t);
}
return ret;
}
static void
mxf_metadata_wave_audio_essence_descriptor_init
(MXFMetadataWaveAudioEssenceDescriptor * self)
{
}
static void
mxf_metadata_wave_audio_essence_descriptor_class_init
(MXFMetadataWaveAudioEssenceDescriptorClass * klass)
{
MXFMetadataBaseClass *metadata_base_class = (MXFMetadataBaseClass *) klass;
MXFMetadataClass *metadata_class = (MXFMetadataClass *) klass;
metadata_base_class->handle_tag =
mxf_metadata_wave_audio_essence_descriptor_handle_tag;
metadata_base_class->name_quark = MXF_QUARK (WAVE_AUDIO_ESSENCE_DESCRIPTOR);
metadata_base_class->to_structure =
mxf_metadata_wave_audio_essence_descriptor_to_structure;
metadata_base_class->write_tags =
mxf_metadata_wave_audio_essence_descriptor_write_tags;
metadata_class->type = 0x0148;
}
/* SMPTE 382M Annex 2 */
G_DEFINE_TYPE (MXFMetadataAES3AudioEssenceDescriptor,
mxf_metadata_aes3_audio_essence_descriptor,
MXF_TYPE_METADATA_WAVE_AUDIO_ESSENCE_DESCRIPTOR);
static void
mxf_metadata_aes3_audio_essence_descriptor_finalize (GObject * object)
{
MXFMetadataAES3AudioEssenceDescriptor *self =
MXF_METADATA_AES3_AUDIO_ESSENCE_DESCRIPTOR (object);
g_free (self->channel_status_mode);
self->channel_status_mode = NULL;
g_free (self->fixed_channel_status_data);
self->fixed_channel_status_data = NULL;
g_free (self->user_data_mode);
self->user_data_mode = NULL;
g_free (self->fixed_user_data);
self->fixed_user_data = NULL;
G_OBJECT_CLASS
(mxf_metadata_aes3_audio_essence_descriptor_parent_class)->finalize
(object);
}
static gboolean
mxf_metadata_aes3_audio_essence_descriptor_handle_tag (MXFMetadataBase *
metadata, MXFPrimerPack * primer, guint16 tag, const guint8 * tag_data,
guint tag_size)
{
MXFMetadataAES3AudioEssenceDescriptor *self =
MXF_METADATA_AES3_AUDIO_ESSENCE_DESCRIPTOR (metadata);
gboolean ret = TRUE;
switch (tag) {
case 0x3d0d:
if (tag_size != 1)
goto error;
self->emphasis = GST_READ_UINT8 (tag_data);
GST_DEBUG (" emphasis = %u", self->emphasis);
break;
case 0x3d0f:
if (tag_size != 2)
goto error;
self->block_start_offset = GST_READ_UINT16_BE (tag_data);
GST_DEBUG (" block start offset = %u", self->block_start_offset);
break;
case 0x3d08:
if (tag_size != 1)
goto error;
self->auxiliary_bits_mode = GST_READ_UINT8 (tag_data);
GST_DEBUG (" auxiliary bits mode = %u", self->auxiliary_bits_mode);
break;
case 0x3d10:{
guint32 len;
guint i;
if (tag_size < 8)
goto error;
len = GST_READ_UINT32_BE (tag_data);
GST_DEBUG (" number of channel status mode = %u", len);
self->n_channel_status_mode = len;
if (len == 0)
return TRUE;
if (GST_READ_UINT32_BE (tag_data + 4) != 1)
goto error;
tag_data += 8;
tag_size -= 8;
if (tag_size != len)
goto error;
self->channel_status_mode = g_new0 (guint8, len);
for (i = 0; i < len; i++) {
self->channel_status_mode[i] = GST_READ_UINT8 (tag_data);
GST_DEBUG (" channel status mode %u = %u", i,
self->channel_status_mode[i]);
tag_data++;
tag_size--;
}
break;
}
case 0x3d11:{
guint32 len;
guint i;
if (tag_size < 8)
goto error;
len = GST_READ_UINT32_BE (tag_data);
GST_DEBUG (" number of fixed channel status data = %u", len);
self->n_fixed_channel_status_data = len;
if (len == 0)
return TRUE;
if (GST_READ_UINT32_BE (tag_data + 4) != 24)
goto error;
tag_data += 8;
tag_size -= 8;
if (tag_size / 24 != len)
goto error;
if (G_MAXINT / (24 + sizeof (guint8 *)) < len)
goto error;
self->fixed_channel_status_data =
g_malloc0 (len * (sizeof (guint8 *) + 24));
for (i = 0; i < len; i++) {
self->fixed_channel_status_data[i] =
((guint8 *) self->fixed_channel_status_data) +
len * sizeof (guint8 *) + i * 24;
memcpy (self->fixed_channel_status_data[i], tag_data, 24);
GST_DEBUG
(" 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",
i, self->fixed_channel_status_data[i][0],
self->fixed_channel_status_data[i][1],
self->fixed_channel_status_data[i][2],
self->fixed_channel_status_data[i][3],
self->fixed_channel_status_data[i][4],
self->fixed_channel_status_data[i][5],
self->fixed_channel_status_data[i][6],
self->fixed_channel_status_data[i][7],
self->fixed_channel_status_data[i][8],
self->fixed_channel_status_data[i][9],
self->fixed_channel_status_data[i][10],
self->fixed_channel_status_data[i][11],
self->fixed_channel_status_data[i][12],
self->fixed_channel_status_data[i][13],
self->fixed_channel_status_data[i][14],
self->fixed_channel_status_data[i][15],
self->fixed_channel_status_data[i][16],
self->fixed_channel_status_data[i][17],
self->fixed_channel_status_data[i][18],
self->fixed_channel_status_data[i][19],
self->fixed_channel_status_data[i][20],
self->fixed_channel_status_data[i][21],
self->fixed_channel_status_data[i][22],
self->fixed_channel_status_data[i][23]
);
tag_data += 24;
tag_size -= 24;
}
break;
}
case 0x3d12:{
guint32 len;
guint i;
if (tag_size < 8)
goto error;
len = GST_READ_UINT32_BE (tag_data);
GST_DEBUG (" number of user data mode = %u", len);
self->n_user_data_mode = len;
if (len == 0)
return TRUE;
if (GST_READ_UINT32_BE (tag_data + 4) != 1)
goto error;
tag_data += 8;
tag_size -= 8;
if (tag_size != len)
goto error;
self->user_data_mode = g_new0 (guint8, len);
for (i = 0; i < len; i++) {
self->user_data_mode[i] = GST_READ_UINT8 (tag_data);
GST_DEBUG (" user data mode %u = %u", i, self->user_data_mode[i]);
tag_data++;
tag_size--;
}
break;
}
case 0x3d13:{
guint32 len;
guint i;
if (tag_size < 8)
goto error;
len = GST_READ_UINT32_BE (tag_data);
GST_DEBUG (" number of fixed user data = %u", len);
self->n_fixed_user_data = len;
if (len == 0)
return TRUE;
if (GST_READ_UINT32_BE (tag_data + 4) != 24)
goto error;
tag_data += 8;
tag_size -= 8;
if (tag_size / 24 != len)
goto error;
if (G_MAXINT / (24 + sizeof (guint8 *)) < len)
goto error;
self->fixed_user_data = g_malloc0 (len * (sizeof (guint8 *) + 24));
for (i = 0; i < len; i++) {
self->fixed_user_data[i] =
((guint8 *) self->fixed_user_data) + len * sizeof (guint8 *) +
i * 24;
memcpy (self->fixed_user_data[i], tag_data, 24);
GST_DEBUG
(" 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",
i, self->fixed_user_data[i][0],
self->fixed_user_data[i][1],
self->fixed_user_data[i][2],
self->fixed_user_data[i][3],
self->fixed_user_data[i][4],
self->fixed_user_data[i][5],
self->fixed_user_data[i][6],
self->fixed_user_data[i][7],
self->fixed_user_data[i][8],
self->fixed_user_data[i][9],
self->fixed_user_data[i][10],
self->fixed_user_data[i][11],
self->fixed_user_data[i][12],
self->fixed_user_data[i][13],
self->fixed_user_data[i][14],
self->fixed_user_data[i][15],
self->fixed_user_data[i][16],
self->fixed_user_data[i][17],
self->fixed_user_data[i][18],
self->fixed_user_data[i][19],
self->fixed_user_data[i][20],
self->fixed_user_data[i][21],
self->fixed_user_data[i][22], self->fixed_user_data[i][23]
);
tag_data += 24;
tag_size -= 24;
}
break;
}
/* TODO: linked timecode track / data_stream_number parsing, see
* SMPTE 382M Annex 2 */
default:
ret =
MXF_METADATA_BASE_CLASS
(mxf_metadata_aes3_audio_essence_descriptor_parent_class)->handle_tag
(metadata, primer, tag, tag_data, tag_size);
break;
}
return ret;
error:
GST_ERROR
("Invalid AES3 audio essence descriptor local tag 0x%04x of size %u", tag,
tag_size);
return FALSE;
}
static GstStructure *
mxf_metadata_aes3_audio_essence_descriptor_to_structure (MXFMetadataBase * m)
{
GstStructure *ret =
MXF_METADATA_BASE_CLASS
(mxf_metadata_aes3_audio_essence_descriptor_parent_class)->to_structure
(m);
MXFMetadataAES3AudioEssenceDescriptor *self =
MXF_METADATA_AES3_AUDIO_ESSENCE_DESCRIPTOR (m);
if (self->emphasis)
gst_structure_id_set (ret, MXF_QUARK (EMPHASIS), G_TYPE_UCHAR,
self->emphasis, NULL);
if (self->block_start_offset)
gst_structure_id_set (ret, MXF_QUARK (BLOCK_START_OFFSET), G_TYPE_UINT,
self->block_start_offset, NULL);
if (self->auxiliary_bits_mode)
gst_structure_id_set (ret, MXF_QUARK (AUXILIARY_BITS_MODE), G_TYPE_UCHAR,
self->auxiliary_bits_mode, NULL);
if (self->channel_status_mode) {
GstBuffer *buf = gst_buffer_new_and_alloc (self->n_channel_status_mode);
GstMapInfo map;
gst_buffer_map (buf, &map, GST_MAP_WRITE);
memcpy (map.data, self->channel_status_mode, self->n_channel_status_mode);
gst_buffer_unmap (buf, &map);
gst_structure_id_set (ret, MXF_QUARK (CHANNEL_STATUS_MODE), GST_TYPE_BUFFER,
buf, NULL);
gst_buffer_unref (buf);
}
if (self->channel_status_mode) {
GstBuffer *buf = gst_buffer_new_and_alloc (self->n_channel_status_mode);
GstMapInfo map;
gst_buffer_map (buf, &map, GST_MAP_WRITE);
memcpy (map.data, self->channel_status_mode, self->n_channel_status_mode);
gst_buffer_unmap (buf, &map);
gst_structure_id_set (ret, MXF_QUARK (CHANNEL_STATUS_MODE), GST_TYPE_BUFFER,
buf, NULL);
gst_buffer_unref (buf);
}
if (self->fixed_channel_status_data) {
guint i;
GValue va = { 0, }
, v = {
0,};
GstBuffer *buf;
GstMapInfo map;
g_value_init (&va, GST_TYPE_ARRAY);
for (i = 0; i < self->n_fixed_channel_status_data; i++) {
buf = gst_buffer_new_and_alloc (24);
g_value_init (&v, GST_TYPE_BUFFER);
gst_buffer_map (buf, &map, GST_MAP_WRITE);
memcpy (map.data, self->fixed_channel_status_data[i], 24);
gst_buffer_unmap (buf, &map);
gst_value_set_buffer (&v, buf);
gst_value_array_append_value (&va, &v);
gst_buffer_unref (buf);
g_value_unset (&v);
}
if (gst_value_array_get_size (&va) > 0)
gst_structure_id_set_value (ret, MXF_QUARK (FIXED_CHANNEL_STATUS_DATA),
&va);
g_value_unset (&va);
}
if (self->user_data_mode) {
GstBuffer *buf = gst_buffer_new_and_alloc (self->n_user_data_mode);
GstMapInfo map;
gst_buffer_map (buf, &map, GST_MAP_WRITE);
memcpy (map.data, self->user_data_mode, self->n_user_data_mode);
gst_buffer_unmap (buf, &map);
gst_structure_id_set (ret, MXF_QUARK (USER_DATA_MODE), GST_TYPE_BUFFER, buf,
NULL);
gst_buffer_unref (buf);
}
if (self->fixed_user_data) {
guint i;
GValue va = { 0, }
, v = {
0,};
GstBuffer *buf;
GstMapInfo map;
g_value_init (&va, GST_TYPE_ARRAY);
for (i = 0; i < self->n_fixed_user_data; i++) {
buf = gst_buffer_new_and_alloc (24);
g_value_init (&v, GST_TYPE_BUFFER);
gst_buffer_map (buf, &map, GST_MAP_WRITE);
memcpy (map.data, self->fixed_user_data[i], 24);
gst_buffer_unmap (buf, &map);
gst_value_set_buffer (&v, buf);
gst_value_array_append_value (&va, &v);
gst_buffer_unref (buf);
g_value_unset (&v);
}
if (gst_value_array_get_size (&va) > 0)
gst_structure_id_set_value (ret, MXF_QUARK (FIXED_USER_DATA), &va);
g_value_unset (&va);
}
if (self->linked_timecode_track_id)
gst_structure_id_set (ret, MXF_QUARK (LINKED_TIMECODE_TRACK_ID),
G_TYPE_UINT, self->linked_timecode_track_id, NULL);
if (self->stream_number)
gst_structure_id_set (ret, MXF_QUARK (STREAM_NUMBER), G_TYPE_UCHAR,
self->stream_number, NULL);
return ret;
}
static GList *
mxf_metadata_aes3_audio_essence_descriptor_write_tags (MXFMetadataBase * m,
MXFPrimerPack * primer)
{
MXFMetadataAES3AudioEssenceDescriptor *self =
MXF_METADATA_AES3_AUDIO_ESSENCE_DESCRIPTOR (m);
GList *ret =
MXF_METADATA_BASE_CLASS
(mxf_metadata_aes3_audio_essence_descriptor_parent_class)->write_tags (m,
primer);
MXFLocalTag *t;
static const guint8 emphasis_ul[] = {
0x06, 0x0E, 0x2B, 0x34, 0x01, 0x01, 0x01, 0x05,
0x04, 0x02, 0x05, 0x01, 0x06, 0x00, 0x00, 0x00
};
static const guint8 block_start_offset_ul[] = {
0x06, 0x0E, 0x2B, 0x34, 0x01, 0x01, 0x01, 0x05,
0x04, 0x02, 0x03, 0x02, 0x03, 0x00, 0x00, 0x00
};
static const guint8 auxiliary_bits_mode_ul[] = {
0x06, 0x0E, 0x2B, 0x34, 0x01, 0x01, 0x01, 0x05,
0x04, 0x02, 0x05, 0x01, 0x01, 0x00, 0x00, 0x00
};
static const guint8 channel_status_mode_ul[] = {
0x06, 0x0E, 0x2B, 0x34, 0x01, 0x01, 0x01, 0x05,
0x04, 0x02, 0x05, 0x01, 0x02, 0x00, 0x00, 0x00
};
static const guint8 fixed_channel_status_data_ul[] = {
0x06, 0x0E, 0x2B, 0x34, 0x01, 0x01, 0x01, 0x05,
0x04, 0x02, 0x05, 0x01, 0x03, 0x00, 0x00, 0x00
};
static const guint8 user_data_mode_ul[] = {
0x06, 0x0E, 0x2B, 0x34, 0x01, 0x01, 0x01, 0x05,
0x04, 0x02, 0x05, 0x01, 0x04, 0x00, 0x00, 0x00
};
static const guint8 fixed_user_data_ul[] = {
0x06, 0x0E, 0x2B, 0x34, 0x01, 0x01, 0x01, 0x05,
0x04, 0x02, 0x05, 0x01, 0x05, 0x00, 0x00, 0x00
};
if (self->emphasis) {
t = g_slice_new0 (MXFLocalTag);
memcpy (&t->ul, &emphasis_ul, 16);
t->size = 1;
t->data = g_slice_alloc (t->size);
t->g_slice = TRUE;
GST_WRITE_UINT8 (t->data, self->emphasis);
mxf_primer_pack_add_mapping (primer, 0x3d0d, &t->ul);
ret = g_list_prepend (ret, t);
}
if (self->block_start_offset) {
t = g_slice_new0 (MXFLocalTag);
memcpy (&t->ul, &block_start_offset_ul, 16);
t->size = 2;
t->data = g_slice_alloc (t->size);
t->g_slice = TRUE;
GST_WRITE_UINT16_BE (t->data, self->block_start_offset);
mxf_primer_pack_add_mapping (primer, 0x3d0f, &t->ul);
ret = g_list_prepend (ret, t);
}
if (self->auxiliary_bits_mode) {
t = g_slice_new0 (MXFLocalTag);
memcpy (&t->ul, &auxiliary_bits_mode_ul, 16);
t->size = 1;
t->data = g_slice_alloc (t->size);
t->g_slice = TRUE;
GST_WRITE_UINT8 (t->data, self->auxiliary_bits_mode);
mxf_primer_pack_add_mapping (primer, 0x3d08, &t->ul);
ret = g_list_prepend (ret, t);
}
if (self->channel_status_mode) {
t = g_slice_new0 (MXFLocalTag);
memcpy (&t->ul, &channel_status_mode_ul, 16);
t->size = 8 + self->n_channel_status_mode;
t->data = g_slice_alloc (t->size);
t->g_slice = TRUE;
GST_WRITE_UINT32_BE (t->data, self->n_channel_status_mode);
GST_WRITE_UINT32_BE (t->data + 4, 1);
memcpy (t->data + 8, self->channel_status_mode, t->size);
mxf_primer_pack_add_mapping (primer, 0x3d10, &t->ul);
ret = g_list_prepend (ret, t);
}
if (self->fixed_channel_status_data) {
guint i;
t = g_slice_new0 (MXFLocalTag);
memcpy (&t->ul, &fixed_channel_status_data_ul, 16);
t->size = 8 + 24 * self->n_fixed_channel_status_data;
t->data = g_slice_alloc (t->size);
t->g_slice = TRUE;
GST_WRITE_UINT32_BE (t->data, self->n_fixed_channel_status_data);
GST_WRITE_UINT32_BE (t->data + 4, 24);
for (i = 0; i < self->n_fixed_channel_status_data; i++)
memcpy (t->data + 8 + 24 * i, self->fixed_channel_status_data[i], 24);
mxf_primer_pack_add_mapping (primer, 0x3d11, &t->ul);
ret = g_list_prepend (ret, t);
}
if (self->user_data_mode) {
t = g_slice_new0 (MXFLocalTag);
memcpy (&t->ul, &user_data_mode_ul, 16);
t->size = 8 + self->n_user_data_mode;
t->data = g_slice_alloc (t->size);
t->g_slice = TRUE;
GST_WRITE_UINT32_BE (t->data, self->n_user_data_mode);
GST_WRITE_UINT32_BE (t->data + 4, 1);
memcpy (t->data + 8, self->user_data_mode, t->size);
mxf_primer_pack_add_mapping (primer, 0x3d12, &t->ul);
ret = g_list_prepend (ret, t);
}
if (self->fixed_user_data) {
guint i;
t = g_slice_new0 (MXFLocalTag);
memcpy (&t->ul, &fixed_user_data_ul, 16);
t->size = 8 + 24 * self->n_fixed_user_data;
t->data = g_slice_alloc (t->size);
t->g_slice = TRUE;
GST_WRITE_UINT32_BE (t->data, self->n_fixed_user_data);
GST_WRITE_UINT32_BE (t->data + 4, 24);
for (i = 0; i < self->n_fixed_user_data; i++)
memcpy (t->data + 8 + 24 * i, self->fixed_user_data[i], 24);
mxf_primer_pack_add_mapping (primer, 0x3d11, &t->ul);
ret = g_list_prepend (ret, t);
}
return ret;
}
static void
mxf_metadata_aes3_audio_essence_descriptor_init
(MXFMetadataAES3AudioEssenceDescriptor * self)
{
}
static void
mxf_metadata_aes3_audio_essence_descriptor_class_init
(MXFMetadataAES3AudioEssenceDescriptorClass * klass)
{
MXFMetadataBaseClass *metadata_base_class = (MXFMetadataBaseClass *) klass;
GObjectClass *object_class = (GObjectClass *) klass;
MXFMetadataClass *metadata_class = (MXFMetadataClass *) klass;
object_class->finalize = mxf_metadata_aes3_audio_essence_descriptor_finalize;
metadata_base_class->handle_tag =
mxf_metadata_aes3_audio_essence_descriptor_handle_tag;
metadata_base_class->name_quark = MXF_QUARK (AES3_AUDIO_ESSENCE_DESCRIPTOR);
metadata_base_class->to_structure =
mxf_metadata_aes3_audio_essence_descriptor_to_structure;
metadata_base_class->write_tags =
mxf_metadata_aes3_audio_essence_descriptor_write_tags;
metadata_class->type = 0x0147;
}
static gboolean
mxf_is_aes_bwf_essence_track (const MXFMetadataTimelineTrack * track)
{
guint i;
g_return_val_if_fail (track != NULL, FALSE);
if (track->parent.descriptor == NULL) {
GST_ERROR ("No descriptor for this track");
return FALSE;
}
for (i = 0; i < track->parent.n_descriptor; i++) {
MXFMetadataFileDescriptor *d = track->parent.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 MXFEssenceWrapping
mxf_aes_bwf_get_track_wrapping (const MXFMetadataTimelineTrack * track)
{
guint i;
g_return_val_if_fail (track != NULL, MXF_ESSENCE_WRAPPING_CUSTOM_WRAPPING);
if (track->parent.descriptor == NULL) {
GST_ERROR ("No descriptor found for this track");
return MXF_ESSENCE_WRAPPING_CUSTOM_WRAPPING;
}
for (i = 0; i < track->parent.n_descriptor; i++) {
if (!track->parent.descriptor[i])
continue;
if (!MXF_IS_METADATA_GENERIC_SOUND_ESSENCE_DESCRIPTOR (track->
parent.descriptor[i]))
continue;
switch (track->parent.descriptor[i]->essence_container.u[14]) {
case 0x01:
case 0x03:
return MXF_ESSENCE_WRAPPING_FRAME_WRAPPING;
break;
case 0x02:
case 0x04:
return MXF_ESSENCE_WRAPPING_CLIP_WRAPPING;
break;
case 0x08:
case 0x09:
default:
return MXF_ESSENCE_WRAPPING_CUSTOM_WRAPPING;
break;
}
}
return MXF_ESSENCE_WRAPPING_CUSTOM_WRAPPING;
}
static GstFlowReturn
mxf_bwf_handle_essence_element (const MXFUL * key, GstBuffer * buffer,
GstCaps * caps,
MXFMetadataTimelineTrack * track,
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, MXFMetadataTimelineTrack * track,
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}
};
/* Also seems to be uncompressed */
static const MXFUL mxf_sound_essence_compression_s24le =
{ {0x06, 0x0e, 0x2b, 0x34, 0x04, 0x01, 0x01, 0x0a, 0x04, 0x02, 0x02, 0x01,
0x01, 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 (MXFMetadataTimelineTrack * track,
MXFMetadataGenericSoundEssenceDescriptor * descriptor, GstTagList ** tags,
gboolean * intra_only,
MXFEssenceElementHandleFunc * handler, gpointer * mapping_data)
{
GstCaps *ret = NULL;
MXFMetadataWaveAudioEssenceDescriptor *wa_descriptor = NULL;
#ifndef GST_DISABLE_GST_DEBUG
gchar str[48];
#endif
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_subclass (&mxf_sound_essence_compression_uncompressed,
&descriptor->sound_essence_compression) ||
mxf_ul_is_subclass (&mxf_sound_essence_compression_s24le,
&descriptor->sound_essence_compression)) {
guint block_align;
GstAudioFormat audio_format;
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;
audio_format =
gst_audio_format_build_integer (block_align !=
descriptor->channel_count, G_LITTLE_ENDIAN,
(block_align / descriptor->channel_count) * 8,
(block_align / descriptor->channel_count) * 8);
ret =
mxf_metadata_generic_sound_essence_descriptor_create_caps (descriptor,
&audio_format);
codec_name =
g_strdup_printf ("Uncompressed %u-bit little endian integer PCM audio",
(block_align / descriptor->channel_count) * 8);
} else if (mxf_ul_is_subclass (&mxf_sound_essence_compression_aiff,
&descriptor->sound_essence_compression)) {
guint block_align;
GstAudioFormat audio_format;
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;
audio_format =
gst_audio_format_build_integer (block_align !=
descriptor->channel_count, G_BIG_ENDIAN,
(block_align / descriptor->channel_count) * 8,
(block_align / descriptor->channel_count) * 8);
ret =
mxf_metadata_generic_sound_essence_descriptor_create_caps (descriptor,
&audio_format);
codec_name =
g_strdup_printf ("Uncompressed %u-bit big endian integer PCM audio",
(block_align / descriptor->channel_count) * 8);
} else if (mxf_ul_is_subclass (&mxf_sound_essence_compression_alaw,
&descriptor->sound_essence_compression)) {
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_empty_simple ("audio/x-alaw");
mxf_metadata_generic_sound_essence_descriptor_set_caps (descriptor, ret);
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));
}
*handler = mxf_bwf_handle_essence_element;
if (!*tags)
*tags = gst_tag_list_new_empty ();
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);
*intra_only = TRUE;
return ret;
}
static GstCaps *
mxf_aes3_create_caps (MXFMetadataTimelineTrack * track,
MXFMetadataGenericSoundEssenceDescriptor * descriptor, GstTagList ** tags,
gboolean * intra_only, MXFEssenceElementHandleFunc * handler,
gpointer * mapping_data)
{
GstCaps *ret = NULL;
MXFMetadataWaveAudioEssenceDescriptor *wa_descriptor = NULL;
gchar *codec_name = NULL;
GstAudioFormat audio_format;
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;
audio_format =
gst_audio_format_build_integer (block_align != descriptor->channel_count,
G_LITTLE_ENDIAN, (block_align / descriptor->channel_count) * 8,
(block_align / descriptor->channel_count) * 8);
ret =
mxf_metadata_generic_sound_essence_descriptor_create_caps (descriptor,
&audio_format);
codec_name =
g_strdup_printf ("Uncompressed %u-bit AES3 audio",
(block_align / descriptor->channel_count) * 8);
if (!*tags)
*tags = gst_tag_list_new_empty ();
gst_tag_list_add (*tags, GST_TAG_MERGE_APPEND, GST_TAG_AUDIO_CODEC,
codec_name, GST_TAG_BITRATE,
(gint) (block_align * 8 *
mxf_fraction_to_double (&descriptor->audio_sampling_rate)) /
(descriptor->channel_count), NULL);
g_free (codec_name);
*handler = mxf_aes3_handle_essence_element;
*intra_only = TRUE;
return ret;
}
static GstCaps *
mxf_aes_bwf_create_caps (MXFMetadataTimelineTrack * track, GstTagList ** tags,
gboolean * intra_only, MXFEssenceElementHandleFunc * handler,
gpointer * mapping_data)
{
MXFMetadataGenericSoundEssenceDescriptor *s = NULL;
gboolean bwf = FALSE;
guint i;
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_SOUND_ESSENCE_DESCRIPTOR (track->parent.
descriptor[i])
&& (track->parent.descriptor[i]->essence_container.u[14] == 0x01
|| track->parent.descriptor[i]->essence_container.u[14] == 0x02
|| track->parent.descriptor[i]->essence_container.u[14] == 0x08)) {
s = (MXFMetadataGenericSoundEssenceDescriptor *) track->parent.
descriptor[i];
bwf = TRUE;
break;
} else
if (MXF_IS_METADATA_GENERIC_SOUND_ESSENCE_DESCRIPTOR (track->parent.
descriptor[i])
&& (track->parent.descriptor[i]->essence_container.u[14] == 0x03
|| track->parent.descriptor[i]->essence_container.u[14] == 0x04
|| track->parent.descriptor[i]->essence_container.u[14] == 0x09)) {
s = (MXFMetadataGenericSoundEssenceDescriptor *) track->parent.
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 (track, s, tags, intra_only, handler,
mapping_data);
} else {
return mxf_aes3_create_caps (track, s, tags, intra_only, handler,
mapping_data);
}
return NULL;
}
static const MXFEssenceElementHandler mxf_aes_bwf_essence_handler = {
mxf_is_aes_bwf_essence_track,
mxf_aes_bwf_get_track_wrapping,
mxf_aes_bwf_create_caps
};
typedef struct
{
guint64 error;
gint width, rate, channels;
MXFFraction edit_rate;
} BWFMappingData;
static GstFlowReturn
mxf_bwf_write_func (GstBuffer * buffer, gpointer mapping_data,
GstAdapter * adapter, GstBuffer ** outbuf, gboolean flush)
{
BWFMappingData *md = mapping_data;
guint bytes;
guint64 speu =
gst_util_uint64_scale (md->rate, md->edit_rate.d, md->edit_rate.n);
md->error += (md->edit_rate.d * md->rate) % (md->edit_rate.n);
if (md->error >= md->edit_rate.n) {
md->error = 0;
speu += 1;
}
bytes = (speu * md->channels * md->width) / 8;
if (buffer)
gst_adapter_push (adapter, buffer);
if (gst_adapter_available (adapter) == 0)
return GST_FLOW_OK;
if (flush)
bytes = MIN (gst_adapter_available (adapter), bytes);
if (gst_adapter_available (adapter) >= bytes) {
*outbuf = gst_adapter_take_buffer (adapter, bytes);
}
if (gst_adapter_available (adapter) >= bytes)
return GST_FLOW_CUSTOM_SUCCESS;
else
return GST_FLOW_OK;
}
static const guint8 bwf_essence_container_ul[] = {
0x06, 0x0e, 0x2b, 0x34, 0x04, 0x01, 0x01, 0x01,
0x0d, 0x01, 0x03, 0x01, 0x02, 0x06, 0x01, 0x00
};
static MXFMetadataFileDescriptor *
mxf_bwf_get_descriptor (GstPadTemplate * tmpl, GstCaps * caps,
MXFEssenceElementWriteFunc * handler, gpointer * mapping_data)
{
MXFMetadataWaveAudioEssenceDescriptor *ret;
BWFMappingData *md;
GstAudioInfo info;
if (!gst_audio_info_from_caps (&info, caps)) {
GST_ERROR ("Invalid caps %" GST_PTR_FORMAT, caps);
return NULL;
}
ret = (MXFMetadataWaveAudioEssenceDescriptor *)
g_object_new (MXF_TYPE_METADATA_WAVE_AUDIO_ESSENCE_DESCRIPTOR, NULL);
memcpy (&ret->parent.parent.essence_container, &bwf_essence_container_ul, 16);
if (info.finfo->endianness == G_LITTLE_ENDIAN)
memcpy (&ret->parent.sound_essence_compression,
&mxf_sound_essence_compression_uncompressed, 16);
else
memcpy (&ret->parent.sound_essence_compression,
&mxf_sound_essence_compression_aiff, 16);
ret->block_align = (info.finfo->width / 8) * info.channels;
ret->parent.quantization_bits = info.finfo->width;
ret->avg_bps = ret->block_align * info.rate;
if (!mxf_metadata_generic_sound_essence_descriptor_from_caps (&ret->parent,
caps)) {
g_object_unref (ret);
return NULL;
}
*handler = mxf_bwf_write_func;
md = g_new0 (BWFMappingData, 1);
md->width = info.finfo->width;
md->rate = info.rate;
md->channels = info.channels;
*mapping_data = md;
return (MXFMetadataFileDescriptor *) ret;
}
static void
mxf_bwf_update_descriptor (MXFMetadataFileDescriptor * d, GstCaps * caps,
gpointer mapping_data, GstBuffer * buf)
{
return;
}
static void
mxf_bwf_get_edit_rate (MXFMetadataFileDescriptor * a, GstCaps * caps,
gpointer mapping_data, GstBuffer * buf, MXFMetadataSourcePackage * package,
MXFMetadataTimelineTrack * track, MXFFraction * edit_rate)
{
guint i;
gdouble min = G_MAXDOUBLE;
BWFMappingData *md = mapping_data;
for (i = 0; i < package->parent.n_tracks; i++) {
MXFMetadataTimelineTrack *tmp;
if (!MXF_IS_METADATA_TIMELINE_TRACK (package->parent.tracks[i]) ||
package->parent.tracks[i] == (MXFMetadataTrack *) track)
continue;
tmp = MXF_METADATA_TIMELINE_TRACK (package->parent.tracks[i]);
if (((gdouble) tmp->edit_rate.n) / ((gdouble) tmp->edit_rate.d) < min) {
min = ((gdouble) tmp->edit_rate.n) / ((gdouble) tmp->edit_rate.d);
memcpy (edit_rate, &tmp->edit_rate, sizeof (MXFFraction));
}
}
if (min == G_MAXDOUBLE) {
/* 100ms edit units */
edit_rate->n = 10;
edit_rate->d = 1;
}
memcpy (&md->edit_rate, edit_rate, sizeof (MXFFraction));
}
static guint32
mxf_bwf_get_track_number_template (MXFMetadataFileDescriptor * a,
GstCaps * caps, gpointer mapping_data)
{
return (0x16 << 24) | (0x01 << 8);
}
static MXFEssenceElementWriter mxf_bwf_essence_element_writer = {
mxf_bwf_get_descriptor,
mxf_bwf_update_descriptor,
mxf_bwf_get_edit_rate,
mxf_bwf_get_track_number_template,
NULL,
{{0,}}
};
#define BWF_CAPS \
GST_AUDIO_CAPS_MAKE ("S32LE") "; " \
GST_AUDIO_CAPS_MAKE ("S32BE") "; " \
GST_AUDIO_CAPS_MAKE ("S24LE") "; " \
GST_AUDIO_CAPS_MAKE ("S24BE") "; " \
GST_AUDIO_CAPS_MAKE ("S16LE") "; " \
GST_AUDIO_CAPS_MAKE ("S16BE") "; " \
GST_AUDIO_CAPS_MAKE ("U8")
void
mxf_aes_bwf_init (void)
{
mxf_metadata_register (MXF_TYPE_METADATA_WAVE_AUDIO_ESSENCE_DESCRIPTOR);
mxf_metadata_register (MXF_TYPE_METADATA_AES3_AUDIO_ESSENCE_DESCRIPTOR);
mxf_essence_element_handler_register (&mxf_aes_bwf_essence_handler);
mxf_bwf_essence_element_writer.pad_template =
gst_pad_template_new ("bwf_audio_sink_%u", GST_PAD_SINK, GST_PAD_REQUEST,
gst_caps_from_string (BWF_CAPS));
memcpy (&mxf_bwf_essence_element_writer.data_definition,
mxf_metadata_track_identifier_get (MXF_METADATA_TRACK_SOUND_ESSENCE), 16);
mxf_essence_element_writer_register (&mxf_bwf_essence_element_writer);
}
Reference in a new issue View git blame Copy permalink