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Functions
Types and Values
struct | GstMpegtsDescriptor |
enum | GstMpegtsDescriptorType |
enum | GstMpegtsMiscDescriptorType |
struct | GstMpegtsISO639LanguageDescriptor |
enum | GstMpegtsIso639AudioType |
struct | GstMpegtsLogicalChannel |
struct | GstMpegtsLogicalChannelDescriptor |
Object Hierarchy
GBoxed ╰── GstMpegtsDescriptor GEnum ├── GstMpegtsDescriptorType ╰── GstMpegtsIso639AudioType
Description
These are the base descriptor types and methods.
For more details, refer to the ITU H.222.0 or ISO/IEC 13818-1 specifications and other specifications mentionned in the documentation.
Functions
gst_mpegts_find_descriptor ()
const GstMpegtsDescriptor * gst_mpegts_find_descriptor (GPtrArray *descriptors
,guint8 tag
);
Finds the first descriptor of type tag
in the array.
Note: To look for descriptors that can be present more than once in an array of descriptors, iterate the GArray manually.
Parameters
descriptors |
an array of GstMpegtsDescriptor. |
[element-type GstMpegtsDescriptor][transfer none] |
tag |
the tag to look for |
gst_mpegts_parse_descriptors ()
GPtrArray * gst_mpegts_parse_descriptors (guint8 *buffer
,gsize buf_len
);
Parses the descriptors present in buffer
and returns them as an
array.
Note: The data provided in buffer
will not be copied.
Returns
an
array of the parsed descriptors or NULL
if there was an error.
Release with g_array_unref when done with it.
[transfer full][element-type GstMpegtsDescriptor]
gst_mpegts_descriptor_from_custom ()
GstMpegtsDescriptor * gst_mpegts_descriptor_from_custom (guint8 tag
,const guint8 *data
,gsize length
);
Creates a GstMpegtsDescriptor with custom tag
and data
gst_mpegts_descriptor_from_registration ()
GstMpegtsDescriptor * gst_mpegts_descriptor_from_registration (const gchar *format_identifier
,guint8 *additional_info
,gsize additional_info_length
);
Creates a GST_MTS_DESC_REGISTRATION
GstMpegtsDescriptor
Return: GstMpegtsDescriptor, NULL
on failure
gst_mpegts_descriptor_parse_iso_639_language ()
gboolean gst_mpegts_descriptor_parse_iso_639_language (const GstMpegtsDescriptor *descriptor
,GstMpegtsISO639LanguageDescriptor **res
);
Extracts the iso 639-2 language information from descriptor
.
Note: Use gst_tag_get_language_code if you want to get the the ISO 639-1 language code from the returned ISO 639-2 one.
gst_mpegts_descriptor_parse_iso_639_language_idx ()
gboolean gst_mpegts_descriptor_parse_iso_639_language_idx (const GstMpegtsDescriptor *descriptor
,guint idx
,gchar **lang
,GstMpegtsIso639AudioType *audio_type
);
Extracts the iso 639-2 language information from specific table id in descriptor
.
Note: Use gst_tag_get_language_code if you want to get the the ISO 639-1 language code from the returned ISO 639-2 one.
Parameters
descriptor |
||
idx |
Table id of the language to parse |
|
lang |
4-byte gchar array to hold the language code. |
[out][transfer full] |
audio_type |
the GstMpegtsIso639AudioType to set. |
[out][transfer none][allow-none] |
gst_mpegts_descriptor_parse_iso_639_language_nb ()
guint
gst_mpegts_descriptor_parse_iso_639_language_nb
(const GstMpegtsDescriptor *descriptor
);
gst_mpegts_iso_639_language_descriptor_free ()
void
gst_mpegts_iso_639_language_descriptor_free
(GstMpegtsISO639LanguageDescriptor *desc
);
gst_mpegts_descriptor_parse_logical_channel ()
gboolean gst_mpegts_descriptor_parse_logical_channel (const GstMpegtsDescriptor *descriptor
,GstMpegtsLogicalChannelDescriptor *res
);
Extracts the logical channels from descriptor
.
Types and Values
struct GstMpegtsDescriptor
struct GstMpegtsDescriptor { guint8 tag; guint8 tag_extension; guint8 length; guint8 *data; };
Mpeg-TS descriptor (ISO/IEC 13818-1).
Members
guint8 |
the type of descriptor |
|
guint8 |
the extended type (if |
|
guint8 |
the length of the descriptor content (excluding tag/length field) |
|
guint8 * |
the full descriptor data (including tag, extension, length). The first
two bytes are the |
enum GstMpegtsDescriptorType
The type of GstMpegtsDescriptor
These values correspond to the registered descriptor type from the base MPEG-TS specifications (ITU H.222.0 | ISO/IEC 13818-1).
Consult the relevant specifications for more details.
enum GstMpegtsMiscDescriptorType
The type of GstMpegtsDescriptor
These values correspond to miscellaneous descriptor types that are not yet identified from known specifications.
struct GstMpegtsISO639LanguageDescriptor
struct GstMpegtsISO639LanguageDescriptor { guint nb_language; gchar *language[64]; GstMpegtsIso639AudioType audio_type[64]; };
struct GstMpegtsLogicalChannel
struct GstMpegtsLogicalChannel { guint16 service_id; gboolean visible_service; guint16 logical_channel_number; };