<doc xml:space="preserve" filename="../subprojects/gst-plugins-base/gst-libs/gst/pbutils/gstaudiovisualizer.c">A baseclass for scopes (visualizers). It takes care of re-fitting the
audio-rate to video-rate and handles renegotiation (downstream video size
changes).
It also provides several background shading effects. These effects are
applied to a previous picture before the `render()` implementation can draw a
<doc xml:space="preserve" filename="../subprojects/gst-plugins-base/gst-libs/gst/pbutils/gstdiscoverer.c">The #GstDiscoverer is a utility object which allows to get as much
information as possible from one or many URIs.
It provides two APIs, allowing usage in blocking or non-blocking mode.
The blocking mode just requires calling gst_discoverer_discover_uri()
with the URI one wishes to discover.
The non-blocking mode requires a running #GMainLoop iterating a
#GMainContext, where one connects to the various signals, appends the
URIs to be processed (through gst_discoverer_discover_uri_async()) and then
asks for the discovery to begin (through gst_discoverer_start()).
By default this will use the GLib default main context unless you have
set a custom context using g_main_context_push_thread_default().
All the information is returned in a #GstDiscovererInfo structure.</doc>
<doc xml:space="preserve" filename="../subprojects/gst-plugins-base/gst-libs/gst/pbutils/gstdiscoverer.c">Creates a new #GstDiscoverer with the provided timeout.</doc>
<doc xml:space="preserve" filename="../subprojects/gst-plugins-base/gst-libs/gst/pbutils/gstdiscoverer.c">timeout per file, in nanoseconds. Allowed are values between
one second (#GST_SECOND) and one hour (3600 * #GST_SECOND)</doc>
<doc xml:space="preserve" filename="../subprojects/gst-plugins-base/gst-libs/gst/pbutils/gstdiscoverer.h">Loads the serialized info from the given uri.</doc>
<doc xml:space="preserve" filename="../subprojects/gst-plugins-base/gst-libs/gst/pbutils/gstdiscoverer.h">the #GstDiscovererInfo or %NULL if it could not be loaded</doc>
<doc xml:space="preserve" filename="../subprojects/gst-plugins-base/gst-libs/gst/pbutils/gstdiscoverer.c">the result of the scanning. Can be %NULL if an
<doc xml:space="preserve" filename="../subprojects/gst-plugins-base/gst-libs/gst/pbutils/gstdiscoverer.c">Appends the given @uri to the list of URIs to discoverer. The actual
discovery of the @uri will only take place if gst_discoverer_start() has
been called.
A copy of @uri will be made internally, so the caller can safely g_free()
<doc xml:space="preserve" filename="../subprojects/gst-plugins-base/gst-libs/gst/pbutils/gstdiscoverer.c">%TRUE if the @uri was successfully appended to the list of pending
<doc xml:space="preserve" filename="../subprojects/gst-plugins-base/gst-libs/gst/pbutils/gstdiscoverer.c">Allow asynchronous discovering of URIs to take place.
A #GMainLoop must be available for #GstDiscoverer to properly work in
<doc xml:space="preserve" filename="../subprojects/gst-plugins-base/gst-libs/gst/pbutils/gstdiscoverer.c">Stop the discovery of any pending URIs and clears the list of
<doc xml:space="preserve" filename="../subprojects/gst-plugins-base/gst-libs/gst/pbutils/gstdiscoverer.c">The duration (in nanoseconds) after which the discovery of an individual
URI will timeout.
If the discovery of a URI times out, the %GST_DISCOVERER_TIMEOUT will be
<doc xml:space="preserve" filename="../subprojects/gst-plugins-base/gst-libs/gst/pbutils/gstdiscoverer.c">Will be emitted in async mode when all information on a URI could be
discovered, or an error occurred.
When an error occurs, @info might still contain some partial information,
depending on the circumstances of the error.</doc>
<doc xml:space="preserve" filename="../subprojects/gst-plugins-base/gst-libs/gst/pbutils/gstdiscoverer.c">#GError, which will be non-NULL
if an error occurred during
discovery. You must not free
this #GError, it will be freed by
the discoverer.</doc>
<type name="GLib.Error"/>
</parameter>
</parameters>
</glib:signal>
<glib:signal name="finished" when="last">
<doc xml:space="preserve" filename="../subprojects/gst-plugins-base/gst-libs/gst/pbutils/gstdiscoverer.c">Will be emitted in async mode when all pending URIs have been processed.</doc>
<doc xml:space="preserve" filename="../subprojects/gst-plugins-base/gst-libs/gst/pbutils/gstdiscoverer.c">Retrieves information about a URI from and external source of information,
like a cache file. This is used by the discoverer to speed up the
<doc xml:space="preserve" filename="../subprojects/gst-plugins-base/gst-libs/gst/pbutils/gstdiscoverer.c">THe URI to load the serialized info for</doc>
<doc xml:space="preserve" filename="../subprojects/gst-plugins-base/gst-libs/gst/pbutils/gstdiscoverer.c">This signal is emitted after the source element has been created for, so
the URI being discovered, so it can be configured by setting additional
properties (e.g. set a proxy server for an http source, or set the device
and read speed for an audio cd source).
This signal is usually emitted from the context of a GStreamer streaming
<doc xml:space="preserve" filename="../subprojects/gst-plugins-base/gst-libs/gst/pbutils/gstdiscoverer.c">Will be emitted when the discover starts analyzing the pending URIs</doc>
<doc xml:space="preserve" filename="../subprojects/gst-plugins-base/gst-libs/gst/pbutils/gstdiscoverer.h">#GstDiscovererStreamInfo specific to audio streams.</doc>
<doc xml:space="preserve" filename="../subprojects/gst-plugins-base/gst-libs/gst/pbutils/gstdiscoverer-types.c">the average or nominal bitrate of the stream in bits/second.</doc>
<doc xml:space="preserve" filename="../subprojects/gst-plugins-base/gst-libs/gst/pbutils/gstdiscoverer-types.c">the channel-mask of the stream, refer to
<doc xml:space="preserve" filename="../subprojects/gst-plugins-base/gst-libs/gst/pbutils/gstdiscoverer-types.c">the number of channels in the stream.</doc>
<doc xml:space="preserve" filename="../subprojects/gst-plugins-base/gst-libs/gst/pbutils/gstdiscoverer-types.c">the number of bits used per sample in each channel.</doc>
<doc xml:space="preserve" filename="../subprojects/gst-plugins-base/gst-libs/gst/pbutils/gstdiscoverer-types.c">the language of the stream, or NULL if unknown.</doc>
<doc xml:space="preserve" filename="../subprojects/gst-plugins-base/gst-libs/gst/pbutils/gstdiscoverer-types.c">the maximum bitrate of the stream in bits/second.</doc>
<doc xml:space="preserve" filename="../subprojects/gst-plugins-base/gst-libs/gst/pbutils/gstdiscoverer-types.c">the sample rate of the stream in Hertz.</doc>
<doc xml:space="preserve" filename="../subprojects/gst-plugins-base/gst-libs/gst/pbutils/gstdiscoverer.h">the #GstDiscovererInfo or %NULL if it could not be loaded</doc>
<doc xml:space="preserve" filename="../subprojects/gst-plugins-base/gst-libs/gst/pbutils/gstdiscoverer.h">#GstDiscovererStreamInfo specific to container streams.</doc>
<doc xml:space="preserve" filename="../subprojects/gst-plugins-base/gst-libs/gst/pbutils/gstdiscoverer-types.c">tags specific to the given container. If you wish to use
the tags after the life-time of @info, you will need to copy them.</doc>
<doc xml:space="preserve" filename="../subprojects/gst-plugins-base/gst-libs/gst/pbutils/gstdiscoverer.h">Structure containing the information of a URI analyzed by #GstDiscoverer.</doc>
<doc xml:space="preserve" filename="../subprojects/gst-plugins-base/gst-libs/gst/pbutils/gstdiscoverer.c">Parses a #GVariant as produced by gst_discoverer_info_to_variant()
<doc xml:space="preserve" filename="../subprojects/gst-plugins-base/gst-libs/gst/pbutils/gstdiscoverer.c">A #GVariant to deserialize into a #GstDiscovererInfo.</doc>
<doc xml:space="preserve" filename="../subprojects/gst-plugins-base/gst-libs/gst/pbutils/gstdiscoverer-types.c">Finds all the #GstDiscovererAudioInfo contained in @info</doc>
<doc xml:space="preserve" filename="../subprojects/gst-plugins-base/gst-libs/gst/pbutils/gstdiscoverer-types.c">Finds all the #GstDiscovererContainerInfo contained in @info</doc>
<doc xml:space="preserve" filename="../subprojects/gst-plugins-base/gst-libs/gst/pbutils/gstdiscoverer-types.c">the duration of the URI in #GstClockTime (nanoseconds).</doc>
<doc xml:space="preserve" filename="../subprojects/gst-plugins-base/gst-libs/gst/pbutils/gstdiscoverer-types.c">Miscellaneous information stored as a #GstStructure
(for example: information about missing plugins). If you wish to use the
#GstStructure after the life-time of @info, you will need to copy it.</doc>
<doc xml:space="preserve" filename="../subprojects/gst-plugins-base/gst-libs/gst/pbutils/gstdiscoverer-types.c">Get the installer details for missing elements</doc>
<doc xml:space="preserve" filename="../subprojects/gst-plugins-base/gst-libs/gst/pbutils/gstdiscoverer-types.c">the result of the discovery as a #GstDiscovererResult.</doc>
<doc xml:space="preserve" filename="../subprojects/gst-plugins-base/gst-libs/gst/pbutils/gstdiscoverer-types.c">the structure (or topology) of the URI as a
#GstDiscovererStreamInfo.
This structure can be traversed to see the original hierarchy. Unref with
gst_discoverer_stream_info_unref() after usage.</doc>
<doc xml:space="preserve" filename="../subprojects/gst-plugins-base/gst-libs/gst/pbutils/gstdiscoverer-types.c">Finds the #GstDiscovererStreamInfo contained in @info that match the
<doc xml:space="preserve" filename="../subprojects/gst-plugins-base/gst-libs/gst/pbutils/gstdiscoverer-types.c">Finds all the #GstDiscovererSubtitleInfo contained in @info</doc>
<doc xml:space="preserve" filename="../subprojects/gst-plugins-base/gst-libs/gst/pbutils/gstdiscoverer-types.c">all tags contained in the URI. If you wish to use
the tags after the life-time of @info, you will need to copy them.</doc>
<doc xml:space="preserve" filename="../subprojects/gst-plugins-base/gst-libs/gst/pbutils/gstdiscoverer-types.c">TOC contained in the URI. If you wish to use
the TOC after the life-time of @info, you will need to copy it.</doc>
<doc xml:space="preserve" filename="../subprojects/gst-plugins-base/gst-libs/gst/pbutils/gstdiscoverer-types.c">the URI to which this information corresponds to.
Copy it if you wish to use it after the life-time of @info.</doc>
<doc xml:space="preserve" filename="../subprojects/gst-plugins-base/gst-libs/gst/pbutils/gstdiscoverer-types.c">Finds all the #GstDiscovererVideoInfo contained in @info</doc>
<doc xml:space="preserve" filename="../subprojects/gst-plugins-base/gst-libs/gst/pbutils/gstdiscoverer.c">Serializes @info to a #GVariant that can be parsed again
through gst_discoverer_info_from_variant().
Note that any #GstToc (s) that might have been discovered will not be serialized
<doc xml:space="preserve" filename="../subprojects/gst-plugins-base/gst-libs/gst/pbutils/gstdiscoverer.c">A combination of #GstDiscovererSerializeFlags to specify
<doc xml:space="preserve" filename="../subprojects/gst-plugins-base/gst-libs/gst/pbutils/gstdiscoverer.h">Result values for the discovery process.</doc>
<doc xml:space="preserve" filename="../subprojects/gst-plugins-base/gst-libs/gst/pbutils/gstdiscoverer.h">an error happened and the GError is set</doc>
<doc xml:space="preserve" filename="../subprojects/gst-plugins-base/gst-libs/gst/pbutils/gstdiscoverer.h">the discoverer was already discovering a file</doc>
<doc xml:space="preserve" filename="../subprojects/gst-plugins-base/gst-libs/gst/pbutils/gstdiscoverer.h">Some plugins are missing for full discovery</doc>
<doc xml:space="preserve" filename="../subprojects/gst-plugins-base/gst-libs/gst/pbutils/gstdiscoverer.h">You can use these flags to control what is serialized by
<doc xml:space="preserve" filename="../subprojects/gst-plugins-base/gst-libs/gst/pbutils/gstdiscoverer.h">Serialize miscellaneous information for each stream</doc>
<doc xml:space="preserve" filename="../subprojects/gst-plugins-base/gst-libs/gst/pbutils/gstdiscoverer.h">Base structure for information concerning a media stream. Depending on the
stream type, one can find more media-specific information in
#GstDiscovererAudioInfo, #GstDiscovererVideoInfo, and
#GstDiscovererContainerInfo.
The #GstDiscovererStreamInfo represents the topology of the stream. Siblings
can be iterated over with gst_discoverer_stream_info_get_next() and
gst_discoverer_stream_info_get_previous(). Children (sub-streams) of a
stream can be accessed using the #GstDiscovererContainerInfo API.
As a simple example, if you run #GstDiscoverer on an AVI file with one audio
and one video stream, you will get a #GstDiscovererContainerInfo
corresponding to the AVI container, which in turn will have a
#GstDiscovererAudioInfo sub-stream and a #GstDiscovererVideoInfo sub-stream
for the audio and video streams respectively.</doc>
<doc xml:space="preserve" filename="../subprojects/gst-plugins-base/gst-libs/gst/pbutils/gstdiscoverer-types.c">Decrements the reference count of all contained #GstDiscovererStreamInfo
<doc xml:space="preserve" filename="../subprojects/gst-plugins-base/gst-libs/gst/pbutils/gstdiscoverer-types.c">additional information regarding the stream (for
example codec version, profile, etc..). If you wish to use the #GstStructure
after the life-time of @info you will need to copy it.</doc>
<doc xml:space="preserve" filename="../subprojects/gst-plugins-base/gst-libs/gst/pbutils/gstdiscoverer-types.c">the next #GstDiscovererStreamInfo in a chain. %NULL
for final streams.
Unref with #gst_discoverer_stream_info_unref after usage.</doc>
<doc xml:space="preserve" filename="../subprojects/gst-plugins-base/gst-libs/gst/pbutils/gstdiscoverer-types.c">the previous #GstDiscovererStreamInfo in a chain.
%NULL for starting points. Unref with #gst_discoverer_stream_info_unref
<doc xml:space="preserve" filename="../subprojects/gst-plugins-base/gst-libs/gst/pbutils/gstdiscoverer-types.c">the stream ID of this stream. If you wish to
use the stream ID after the life-time of @info you will need to copy it.</doc>
<doc xml:space="preserve" filename="../subprojects/gst-plugins-base/gst-libs/gst/pbutils/gstdiscoverer-types.c">the stream number, -1 if no index could be determined. This property
acts as a unique identifier as a 'int' for the stream.</doc>
<doc xml:space="preserve" filename="../subprojects/gst-plugins-base/gst-libs/gst/pbutils/gstdiscoverer-types.c">a human readable name for the stream type of the given @info (ex : "audio",
<doc xml:space="preserve" filename="../subprojects/gst-plugins-base/gst-libs/gst/pbutils/gstdiscoverer-types.c">the tags contained in this stream. If you wish to
use the tags after the life-time of @info you will need to copy them.</doc>
<doc xml:space="preserve" filename="../subprojects/gst-plugins-base/gst-libs/gst/pbutils/gstdiscoverer-types.c">the TOC contained in this stream. If you wish to
use the TOC after the life-time of @info you will need to copy it.</doc>
<doc xml:space="preserve" filename="../subprojects/gst-plugins-base/gst-libs/gst/pbutils/gstdiscoverer.h">#GstDiscovererStreamInfo specific to subtitle streams (this includes text and
<doc xml:space="preserve" filename="../subprojects/gst-plugins-base/gst-libs/gst/pbutils/gstdiscoverer-types.c">the language of the stream, or NULL if unknown.</doc>
<doc xml:space="preserve" filename="../subprojects/gst-plugins-base/gst-libs/gst/pbutils/gstdiscoverer.h">#GstDiscovererStreamInfo specific to video streams (this includes images).</doc>
<doc xml:space="preserve" filename="../subprojects/gst-plugins-base/gst-libs/gst/pbutils/gstdiscoverer-types.c">the average or nominal bitrate of the video stream in bits/second.</doc>
<doc xml:space="preserve" filename="../subprojects/gst-plugins-base/gst-libs/gst/pbutils/gstdiscoverer-types.c">the depth in bits of the video stream.</doc>
<doc xml:space="preserve" filename="../subprojects/gst-plugins-base/gst-libs/gst/pbutils/gstdiscoverer-types.c">the framerate of the video stream (denominator).</doc>
<doc xml:space="preserve" filename="../subprojects/gst-plugins-base/gst-libs/gst/pbutils/gstdiscoverer-types.c">the framerate of the video stream (numerator).</doc>
<doc xml:space="preserve" filename="../subprojects/gst-plugins-base/gst-libs/gst/pbutils/gstdiscoverer-types.c">the height of the video stream in pixels.</doc>
<doc xml:space="preserve" filename="../subprojects/gst-plugins-base/gst-libs/gst/pbutils/gstdiscoverer-types.c">the maximum bitrate of the video stream in bits/second.</doc>
<doc xml:space="preserve" filename="../subprojects/gst-plugins-base/gst-libs/gst/pbutils/gstdiscoverer-types.c">the Pixel Aspect Ratio (PAR) of the video stream (denominator).</doc>
<doc xml:space="preserve" filename="../subprojects/gst-plugins-base/gst-libs/gst/pbutils/gstdiscoverer-types.c">the Pixel Aspect Ratio (PAR) of the video stream (numerator).</doc>
<doc xml:space="preserve" filename="../subprojects/gst-plugins-base/gst-libs/gst/pbutils/gstdiscoverer-types.c">the width of the video stream in pixels.</doc>
<doc xml:space="preserve" filename="../subprojects/gst-plugins-base/gst-libs/gst/pbutils/gstdiscoverer-types.c">%TRUE if the video stream corresponds to an image (i.e. only contains
<doc xml:space="preserve" filename="../subprojects/gst-plugins-base/gst-libs/gst/pbutils/gstdiscoverer-types.c">%TRUE if the stream is interlaced, else %FALSE.</doc>
<doc xml:space="preserve" filename="../subprojects/gst-plugins-base/gst-libs/gst/pbutils/encoding-target.h">#GstEncodingTarget category for recording and capture.
Targets within this category are optimized for low latency encoding.</doc>
<doc xml:space="preserve" filename="../subprojects/gst-plugins-base/gst-libs/gst/pbutils/encoding-target.h">#GstEncodingTarget category for storage, archiving and editing targets.
Those targets can be lossless and/or provide very fast random access content.
The name of the target will usually be the container type or editing target,
and that target will contain #GstEncodingProfiles suitable for editing or
<doc xml:space="preserve" filename="../subprojects/gst-plugins-base/gst-libs/gst/pbutils/encoding-profile.h">Variant of #GstEncodingProfile for audio streams.</doc>
<doc xml:space="preserve" filename="../subprojects/gst-plugins-base/gst-libs/gst/pbutils/encoding-profile.c">the preset(s) to use on the encoder, can be %NULL</doc>
<doc xml:space="preserve" filename="../subprojects/gst-plugins-base/gst-libs/gst/pbutils/encoding-profile.c">the #GstCaps used to restrict the input to the encoder, can be
NULL. See gst_encoding_profile_get_restriction() for more details.</doc>
<doc xml:space="preserve" filename="../subprojects/gst-plugins-base/gst-libs/gst/pbutils/encoding-profile.c">the number of time this stream must be used. 0 means any number of
<doc xml:space="preserve" filename="../subprojects/gst-plugins-base/gst-libs/gst/pbutils/encoding-profile.h">Encoding profiles for containers. Keeps track of a list of #GstEncodingProfile</doc>
<doc xml:space="preserve" filename="../subprojects/gst-plugins-base/gst-libs/gst/pbutils/encoding-profile.c">Creates a new #GstEncodingContainerProfile.</doc>
<doc xml:space="preserve" filename="../subprojects/gst-plugins-base/gst-libs/gst/pbutils/encoding-profile.c">The name of the container profile, can be %NULL</doc>
<doc xml:space="preserve" filename="../subprojects/gst-plugins-base/gst-libs/gst/pbutils/encoding-profile.c">Add a #GstEncodingProfile to the list of profiles handled by @container.
No copy of @profile will be made, if you wish to use it elsewhere after this
method you should increment its reference count.</doc>
<doc xml:space="preserve" filename="../subprojects/gst-plugins-base/gst-libs/gst/pbutils/encoding-profile.c">%TRUE if the @stream was properly added, else %FALSE.</doc>
<doc xml:space="preserve" filename="../subprojects/gst-plugins-base/gst-libs/gst/pbutils/encoding-profile.c">Checks if @container contains a #GstEncodingProfile identical to
<doc xml:space="preserve" filename="../subprojects/gst-plugins-base/gst-libs/gst/pbutils/encoding-profile.c">%TRUE if @container contains a #GstEncodingProfile identical
<doc xml:space="preserve" filename="../subprojects/gst-plugins-base/gst-libs/gst/pbutils/encoding-profile.h">The opaque base class object for all encoding profiles. This contains generic
information like name, description, format and preset.</doc>
<doc xml:space="preserve" filename="../subprojects/gst-plugins-base/gst-libs/gst/pbutils/encoding-profile.c">Find the #GstEncodingProfile with the specified name and category.</doc>
<doc xml:space="preserve" filename="../subprojects/gst-plugins-base/gst-libs/gst/pbutils/encoding-profile.c">Creates a #GstEncodingProfile matching the formats from the given
#GstDiscovererInfo. Streams other than audio or video (eg,
<doc xml:space="preserve" filename="../subprojects/gst-plugins-base/gst-libs/gst/pbutils/encoding-profile.c">The new #GstEncodingProfile or %NULL.</doc>
<doc xml:space="preserve" filename="../subprojects/gst-plugins-base/gst-libs/gst/pbutils/encoding-profile.c">Converts a string in the "encoding profile serialization format" into a
GstEncodingProfile. Refer to the encoding-profile documentation for details
<doc xml:space="preserve" filename="../subprojects/gst-plugins-base/gst-libs/gst/pbutils/encoding-profile.c">A newly created GstEncodingProfile or NULL if the
input string is not a valid encoding profile serialization format.</doc>
<doc xml:space="preserve" filename="../subprojects/gst-plugins-base/gst-libs/gst/pbutils/encoding-profile.c">The string to convert into a GstEncodingProfile.</doc>
<doc xml:space="preserve" filename="../subprojects/gst-plugins-base/gst-libs/gst/pbutils/encoding-profile.c">Get whether the format that has been negotiated in at some point can be renegotiated
<doc xml:space="preserve" filename="../subprojects/gst-plugins-base/gst-libs/gst/pbutils/encoding-profile.c">the description of the profile, can be %NULL.</doc>
<doc xml:space="preserve" filename="../subprojects/gst-plugins-base/gst-libs/gst/pbutils/encoding-profile.c">The properties that are going to be set on the underlying element</doc>
<doc xml:space="preserve" filename="../subprojects/gst-plugins-base/gst-libs/gst/pbutils/encoding-profile.c">a suitable file extension for @profile, or NULL.</doc>
<doc xml:space="preserve" filename="../subprojects/gst-plugins-base/gst-libs/gst/pbutils/encoding-profile.c">(nullable): the #GstCaps corresponding to the media format used
<doc xml:space="preserve" filename="../subprojects/gst-plugins-base/gst-libs/gst/pbutils/encoding-profile.c">Computes the full output caps that this @profile will be able to consume.</doc>
<doc xml:space="preserve" filename="../subprojects/gst-plugins-base/gst-libs/gst/pbutils/encoding-profile.c">The full caps the given @profile can consume. Call
gst_caps_unref() when you are done with the caps.</doc>
<doc xml:space="preserve" filename="../subprojects/gst-plugins-base/gst-libs/gst/pbutils/encoding-profile.c">the name of the profile, can be %NULL.</doc>
<doc xml:space="preserve" filename="../subprojects/gst-plugins-base/gst-libs/gst/pbutils/encoding-profile.c">The number of times the profile is used in its parent
container profile. If 0, it is not a mandatory stream.</doc>
<doc xml:space="preserve" filename="../subprojects/gst-plugins-base/gst-libs/gst/pbutils/encoding-profile.c">the name of the #GstPreset to be used in the profile.
This is the name that has been set when saving the preset.</doc>
<doc xml:space="preserve" filename="../subprojects/gst-plugins-base/gst-libs/gst/pbutils/encoding-profile.c">the name of the #GstPreset factory to be used in the profile.</doc>
<doc xml:space="preserve" filename="../subprojects/gst-plugins-base/gst-libs/gst/pbutils/encoding-profile.c">The restriction #GstCaps to apply before the encoder
that will be used in the profile. The fields present in restriction caps are
properties of the raw stream (that is before encoding), such as height and
width for video and depth and sampling rate for audio. Does not apply to
#GstEncodingContainerProfile (since there is no corresponding raw stream).
<doc xml:space="preserve" filename="../subprojects/gst-plugins-base/gst-libs/gst/pbutils/encoding-profile.c">#TRUE if the stream represented by @profile should use a single
segment before the encoder, #FALSE otherwise. This means that buffers will be retimestamped
and segments will be eat so as to appear as one segment.</doc>
<doc xml:space="preserve" filename="../subprojects/gst-plugins-base/gst-libs/gst/pbutils/encoding-profile.c">the human-readable name of the type of @profile.</doc>
<doc xml:space="preserve" filename="../subprojects/gst-plugins-base/gst-libs/gst/pbutils/encoding-profile.c">Checks whether the two #GstEncodingProfile are equal</doc>
<doc xml:space="preserve" filename="../subprojects/gst-plugins-base/gst-libs/gst/pbutils/encoding-profile.c">%TRUE if @a and @b are equal, else %FALSE.</doc>
<doc xml:space="preserve" filename="../subprojects/gst-plugins-base/gst-libs/gst/pbutils/encoding-profile.c">Sets whether the format that has been negotiated in at some point can be renegotiated
<doc xml:space="preserve" filename="../subprojects/gst-plugins-base/gst-libs/gst/pbutils/encoding-profile.c">Whether the format that has been negotiated first can be renegotiated
<doc xml:space="preserve" filename="../subprojects/gst-plugins-base/gst-libs/gst/pbutils/encoding-profile.c">Set @description as the given description for the @profile. A copy of
<doc xml:space="preserve" filename="../subprojects/gst-plugins-base/gst-libs/gst/pbutils/encoding-profile.c">the description to set on the profile</doc>
<doc xml:space="preserve" filename="../subprojects/gst-plugins-base/gst-libs/gst/pbutils/encoding-profile.c">This allows setting the muxing/encoding element properties.
<doc xml:space="preserve" filename="../subprojects/gst-plugins-base/gst-libs/gst/pbutils/encoding-profile.c">Set whether the profile should be used or not.</doc>
<doc xml:space="preserve" filename="../subprojects/gst-plugins-base/gst-libs/gst/pbutils/encoding-profile.c">%FALSE to disable @profile, %TRUE to enable it</doc>
<doc xml:space="preserve" filename="../subprojects/gst-plugins-base/gst-libs/gst/pbutils/encoding-profile.c">Sets the media format used in the profile.</doc>
<doc xml:space="preserve" filename="../subprojects/gst-plugins-base/gst-libs/gst/pbutils/encoding-profile.c">the media format to use in the profile.</doc>
<doc xml:space="preserve" filename="../subprojects/gst-plugins-base/gst-libs/gst/pbutils/encoding-profile.c">Set @name as the given name for the @profile. A copy of @name will be made
<doc xml:space="preserve" filename="../subprojects/gst-plugins-base/gst-libs/gst/pbutils/encoding-profile.c">Set the number of time the profile is used in its parent
container profile. If 0, it is not a mandatory stream</doc>
<doc xml:space="preserve" filename="../subprojects/gst-plugins-base/gst-libs/gst/pbutils/encoding-profile.c">the number of time the profile can be used</doc>
<doc xml:space="preserve" filename="../subprojects/gst-plugins-base/gst-libs/gst/pbutils/encoding-profile.c">Sets the name of the #GstElement that implements the #GstPreset interface
to use for the profile.
This is the name that has been set when saving the preset.</doc>
<doc xml:space="preserve" filename="../subprojects/gst-plugins-base/gst-libs/gst/pbutils/encoding-profile.c">Sets the name of the #GstPreset's factory to be used in the profile.</doc>
<doc xml:space="preserve" filename="../subprojects/gst-plugins-base/gst-libs/gst/pbutils/encoding-profile.c">The name of the preset to use in this @profile.</doc>
<doc xml:space="preserve" filename="../subprojects/gst-plugins-base/gst-libs/gst/pbutils/encoding-profile.c">Set the restriction #GstCaps to apply before the encoder
that will be used in the profile. See gst_encoding_profile_get_restriction()
for more about restrictions. Does not apply to #GstEncodingContainerProfile.</doc>
<doc xml:space="preserve" filename="../subprojects/gst-plugins-base/gst-libs/gst/pbutils/encoding-profile.c">If using a single segment, buffers will be retimestamped and segments will be
eat so as to appear as one segment.
> *NOTE*: Single segment is not property supported when using
<doc xml:space="preserve" filename="../subprojects/gst-plugins-base/gst-libs/gst/pbutils/encoding-profile.c">#TRUE if the stream represented by @profile should use a
single segment before the encoder, #FALSE otherwise.</doc>
<doc xml:space="preserve" filename="../subprojects/gst-plugins-base/gst-libs/gst/pbutils/encoding-profile.c">Converts a GstEncodingProfile to a string in the "Encoding Profile
<doc xml:space="preserve" filename="../subprojects/gst-plugins-base/gst-libs/gst/pbutils/encoding-profile.c">A string representation of the GstEncodingProfile,
<doc xml:space="preserve" filename="../subprojects/gst-plugins-base/gst-libs/gst/pbutils/encoding-profile.c">A #GstStructure defining the properties to be set to the element
<doc xml:space="preserve" filename="../subprojects/gst-plugins-base/gst-libs/gst/pbutils/encoding-target.h">Collection of #GstEncodingProfile for a specific target or use-case.
When being stored/loaded, targets come from a specific category, like
<doc xml:space="preserve" filename="../subprojects/gst-plugins-base/gst-libs/gst/pbutils/encoding-target.c">The newly created #GstEncodingTarget or %NULL if
<doc xml:space="preserve" filename="../subprojects/gst-plugins-base/gst-libs/gst/pbutils/encoding-target.c">The name of the category to which this @target
belongs. For example: #GST_ENCODING_CATEGORY_DEVICE.</doc>
<doc xml:space="preserve" filename="../subprojects/gst-plugins-base/gst-libs/gst/pbutils/encoding-target.c">Searches for the #GstEncodingTarget with the given name, loads it
and returns it.
If the category name is specified only targets from that category will be
<doc xml:space="preserve" filename="../subprojects/gst-plugins-base/gst-libs/gst/pbutils/encoding-target.c">the name of the #GstEncodingTarget to load (automatically
converted to lower case internally as capital letters are not
<doc xml:space="preserve" filename="../subprojects/gst-plugins-base/gst-libs/gst/pbutils/encoding-target.c">Opens the provided file and returns the contained #GstEncodingTarget.</doc>
<doc xml:space="preserve" filename="../subprojects/gst-plugins-base/gst-libs/gst/pbutils/encoding-target.c">The #GstEncodingTarget contained in the file, else
<doc xml:space="preserve" filename="../subprojects/gst-plugins-base/gst-libs/gst/pbutils/encoding-target.c">The file location to load the #GstEncodingTarget from</doc>
<doc xml:space="preserve" filename="../subprojects/gst-plugins-base/gst-libs/gst/pbutils/encoding-target.c">Adds the given @profile to the @target. Each added profile must have
a unique name within the profile.
The @target will steal a reference to the @profile. If you wish to use
the profile after calling this method, you should increase its reference
<doc xml:space="preserve" filename="../subprojects/gst-plugins-base/gst-libs/gst/pbutils/encoding-target.c">%TRUE if the profile was added, else %FALSE.</doc>
<doc xml:space="preserve" filename="../subprojects/gst-plugins-base/gst-libs/gst/pbutils/encoding-target.c">the #GstEncodingTarget to add a profile to</doc>
<doc xml:space="preserve" filename="../subprojects/gst-plugins-base/gst-libs/gst/pbutils/encoding-target.c">Saves the @target to a default user-local directory.</doc>
<doc xml:space="preserve" filename="../subprojects/gst-plugins-base/gst-libs/gst/pbutils/encoding-target.c">%TRUE if the target was correctly saved, else %FALSE.</doc>
<doc xml:space="preserve" filename="../subprojects/gst-plugins-base/gst-libs/gst/pbutils/encoding-target.c">Saves the @target to the provided file location.</doc>
<doc xml:space="preserve" filename="../subprojects/gst-plugins-base/gst-libs/gst/pbutils/encoding-target.c">%TRUE if the target was correctly saved, else %FALSE.</doc>
<doc xml:space="preserve" filename="../subprojects/gst-plugins-base/gst-libs/gst/pbutils/encoding-target.c">the location to store the @target at.</doc>
<doc xml:space="preserve" filename="../subprojects/gst-plugins-base/gst-libs/gst/pbutils/encoding-profile.h">Variant of #GstEncodingProfile for video streams, allows specifying the @pass.</doc>
<doc xml:space="preserve" filename="../subprojects/gst-plugins-base/gst-libs/gst/pbutils/encoding-profile.c">the preset(s) to use on the encoder, can be %NULL</doc>
<doc xml:space="preserve" filename="../subprojects/gst-plugins-base/gst-libs/gst/pbutils/encoding-profile.c">the #GstCaps used to restrict the input to the encoder, can be
NULL. See gst_encoding_profile_get_restriction() for more details.</doc>
<doc xml:space="preserve" filename="../subprojects/gst-plugins-base/gst-libs/gst/pbutils/encoding-profile.c">the number of time this stream must be used. 0 means any number of
<doc xml:space="preserve" filename="../subprojects/gst-plugins-base/gst-libs/gst/pbutils/encoding-profile.c">Get the pass number if this is part of a multi-pass profile.</doc>
<doc xml:space="preserve" filename="../subprojects/gst-plugins-base/gst-libs/gst/pbutils/encoding-profile.c">The pass number. Starts at 1 for multi-pass. 0 if this is
<doc xml:space="preserve" filename="../subprojects/gst-plugins-base/gst-libs/gst/pbutils/encoding-profile.c">Whether non-constant video framerate is allowed for encoding.</doc>
<doc xml:space="preserve" filename="../subprojects/gst-plugins-base/gst-libs/gst/pbutils/encoding-profile.c">Sets the pass number of this video profile. The first pass profile should have
this value set to 1. If this video profile isn't part of a multi-pass profile,
<doc xml:space="preserve" filename="../subprojects/gst-plugins-base/gst-libs/gst/pbutils/encoding-profile.c">If set to %TRUE, then the incoming stream will be allowed to have non-constant
framerate. If set to %FALSE (default value), then the incoming stream will
be normalized by dropping/duplicating frames in order to produce a
<doc xml:space="preserve" filename="../subprojects/gst-plugins-base/gst-libs/gst/pbutils/install-plugins.h">Opaque context structure for the plugin installation. Use the provided
<doc xml:space="preserve" filename="../subprojects/gst-plugins-base/gst-libs/gst/pbutils/install-plugins.c">Creates a new #GstInstallPluginsContext.</doc>
<doc xml:space="preserve" filename="../subprojects/gst-plugins-base/gst-libs/gst/pbutils/install-plugins.c">This function is used to tell the external installer process whether it
should ask for confirmation or not before searching for missing plugins.
If set, this option will be passed to the installer via a
--interaction=[show-confirm-search|hide-confirm-search] command line option.</doc>
<doc xml:space="preserve" filename="../subprojects/gst-plugins-base/gst-libs/gst/pbutils/install-plugins.c">whether to ask for confirmation before searching for plugins</doc>
<doc xml:space="preserve" filename="../subprojects/gst-plugins-base/gst-libs/gst/pbutils/install-plugins.c">This function is used to pass the calling application's desktop file ID to
the external installer process.
A desktop file ID is the basename of the desktop file, including the
.desktop extension.
If set, the desktop file ID will be passed to the installer via a
<doc xml:space="preserve" filename="../subprojects/gst-plugins-base/gst-libs/gst/pbutils/install-plugins.c">the desktop file ID of the calling application</doc>
<doc xml:space="preserve" filename="../subprojects/gst-plugins-base/gst-libs/gst/pbutils/install-plugins.c">Sets the startup notification ID for the launched process.
This is typically used to to pass the current X11 event timestamp to the
<doc xml:space="preserve" filename="../subprojects/gst-plugins-base/gst-libs/gst/pbutils/install-plugins.c">This function is for X11-based applications (such as most Gtk/Qt
applications on linux/unix) only. You can use it to tell the external
installer the XID of your main application window. That way the installer
can make its own window transient to your application window during the
installation.
If set, the XID will be passed to the installer via a --transient-for=XID
command line option.
Gtk+/Gnome application should be able to obtain the XID of the top-level
<doc xml:space="preserve" filename="../subprojects/gst-plugins-base/gst-libs/gst/pbutils/install-plugins.c">the XWindow ID (XID) of the top-level application</doc>
<doc xml:space="preserve" filename="../subprojects/gst-plugins-base/gst-libs/gst/pbutils/install-plugins.h">The prototype of the callback function that will be called once the
external plugin installer program has returned. You only need to provide
a callback function if you are using the asynchronous interface.</doc>
<doc xml:space="preserve" filename="../subprojects/gst-plugins-base/gst-libs/gst/pbutils/install-plugins.h">whether the installation of the requested plugins succeeded or not</doc>
<doc xml:space="preserve" filename="../subprojects/gst-plugins-base/gst-libs/gst/pbutils/install-plugins.h">the user data passed to gst_install_plugins_async()</doc>
<doc xml:space="preserve" filename="../subprojects/gst-plugins-base/gst-libs/gst/pbutils/install-plugins.h">Result codes returned by gst_install_plugins_async() and
gst_install_plugins_sync(), and also the result code passed to the
#GstInstallPluginsResultFunc specified with gst_install_plugins_async().
These codes indicate success or failure of starting an external installer
program and to what extent the requested plugins could be installed.</doc>
<doc xml:space="preserve" filename="../subprojects/gst-plugins-base/gst-libs/gst/pbutils/install-plugins.h">an error occurred during the installation. If
this happens, the user has already seen an error message and another
<doc xml:space="preserve" filename="../subprojects/gst-plugins-base/gst-libs/gst/pbutils/install-plugins.h">the user has aborted the installation</doc>
<doc xml:space="preserve" filename="../subprojects/gst-plugins-base/gst-libs/gst/pbutils/install-plugins.h">the helper returned an invalid status code</doc>
<doc xml:space="preserve" filename="../subprojects/gst-plugins-base/gst-libs/gst/pbutils/install-plugins.c">Convenience function to return the descriptive string associated
with a status code. This function returns English strings and
should not be used for user messages. It is here only to assist
<doc xml:space="preserve" filename="../subprojects/gst-plugins-base/gst-libs/gst/pbutils/install-plugins.c">a descriptive string for the status code in @ret</doc>
<type name="utf8" c:type="const gchar*"/>
</return-value>
<parameters>
<parameter name="ret" transfer-ownership="none">
<doc xml:space="preserve" filename="../subprojects/gst-plugins-base/gst-libs/gst/pbutils/install-plugins.c">the return status code</doc>
<doc xml:space="preserve" filename="../subprojects/gst-plugins-base/gst-libs/gst/pbutils/gstpluginsbaseversion.h">The major version of GStreamer's gst-plugins-base libraries at compile time.</doc>
<doc xml:space="preserve" filename="../subprojects/gst-plugins-base/gst-libs/gst/pbutils/gstpluginsbaseversion.h">The micro version of GStreamer's gst-plugins-base libraries at compile time.</doc>
<doc xml:space="preserve" filename="../subprojects/gst-plugins-base/gst-libs/gst/pbutils/gstpluginsbaseversion.h">The minor version of GStreamer's gst-plugins-base libraries at compile time.</doc>
<doc xml:space="preserve" filename="../subprojects/gst-plugins-base/gst-libs/gst/pbutils/gstpluginsbaseversion.h">The nano version of GStreamer's gst-plugins-base libraries at compile time.
Actual releases have 0, GIT versions have 1, prerelease versions have 2-...</doc>
<doc xml:space="preserve" filename="../subprojects/gst-plugins-base/gst-libs/gst/pbutils/descriptions.h">Flags that are returned by gst_pb_utils_get_caps_description_flags() and
<doc xml:space="preserve" filename="../subprojects/gst-plugins-base/gst-libs/gst/pbutils/descriptions.h">Caps describe a metadata format, or a container format that can store
<doc xml:space="preserve" filename="../subprojects/gst-plugins-base/gst-libs/gst/pbutils/codec-utils.c">Sets the level and profile on @caps if it can be determined from
@audio_config. See gst_codec_utils_aac_get_level() and
gst_codec_utils_aac_get_profile() for more details on the parameters.
@caps must be audio/mpeg caps with an "mpegversion" field of either 2 or 4.
If mpegversion is 4, the "base-profile" field is also set in @caps.</doc>
<doc xml:space="preserve" filename="../subprojects/gst-plugins-base/gst-libs/gst/pbutils/codec-utils.c">%TRUE if the level and profile could be set, %FALSE otherwise.</doc>
<type name="gboolean" c:type="gboolean"/>
</return-value>
<parameters>
<parameter name="caps" transfer-ownership="none">
<doc xml:space="preserve" filename="../subprojects/gst-plugins-base/gst-libs/gst/pbutils/codec-utils.c">the #GstCaps to which level and profile fields are to be added</doc>
<doc xml:space="preserve" filename="../subprojects/gst-plugins-base/gst-libs/gst/pbutils/codec-utils.c">Returns the channels of the given AAC stream.</doc>
<doc xml:space="preserve" filename="../subprojects/gst-plugins-base/gst-libs/gst/pbutils/codec-utils.c">The channels or 0 if the channel could not be determined.</doc>
<doc xml:space="preserve" filename="../subprojects/gst-plugins-base/gst-libs/gst/pbutils/codec-utils.c">Translates the sample rate to the index corresponding to it in AAC spec.</doc>
<doc xml:space="preserve" filename="../subprojects/gst-plugins-base/gst-libs/gst/pbutils/codec-utils.c">The AAC index for this sample rate, -1 if the rate is not a
<doc xml:space="preserve" filename="../subprojects/gst-plugins-base/gst-libs/gst/pbutils/codec-utils.c">Determines the level of a stream as defined in ISO/IEC 14496-3. For AAC LC
streams, the constraints from the AAC audio profile are applied. For AAC
Main, LTP, SSR and others, the Main profile is used.
The @audio_config parameter follows the following format, starting from the
most significant bit of the first byte:
* Bit 0:4 contains the AudioObjectType (if this is 0x5, then the
real AudioObjectType is carried after the rate and channel data)
* Bit 5:8 contains the sample frequency index (if this is 0xf, then the
next 24 bits define the actual sample frequency, and subsequent
fields are appropriately shifted).
* Bit 9:12 contains the channel configuration</doc>
<doc xml:space="preserve" filename="../subprojects/gst-plugins-base/gst-libs/gst/pbutils/codec-utils.c">The level as a const string and %NULL if the level could not be
<doc xml:space="preserve" filename="../subprojects/gst-plugins-base/gst-libs/gst/pbutils/codec-utils.c">Returns the profile of the given AAC stream as a string. The profile is
normally determined using the AudioObjectType field which is in the first
<doc xml:space="preserve" filename="../subprojects/gst-plugins-base/gst-libs/gst/pbutils/codec-utils.c">The profile as a const string and %NULL if the profile could not be
<doc xml:space="preserve" filename="../subprojects/gst-plugins-base/gst-libs/gst/pbutils/codec-utils.c">Translates the sample rate index found in AAC headers to the actual sample
<doc xml:space="preserve" filename="../subprojects/gst-plugins-base/gst-libs/gst/pbutils/codec-utils.c">Translates the sample rate index found in AAC headers to the actual sample
<doc xml:space="preserve" filename="../subprojects/gst-plugins-base/gst-libs/gst/pbutils/codec-utils.c">Sample rate index as from the AudioSpecificConfig (MPEG-4
<doc xml:space="preserve" filename="../subprojects/gst-plugins-base/gst-libs/gst/pbutils/codec-utils.c">Converts a RFC 6381 compatible codec string to #GstCaps. More than one codec
string can be present (separated by `,`).
Registered codecs can be found at http://mp4ra.org/#/codecs</doc>
<doc xml:space="preserve" filename="../subprojects/gst-plugins-base/gst-libs/gst/pbutils/codec-utils.c">Converts @caps to a RFC 6381 compatible codec string if possible.
Useful for providing the 'codecs' field inside the 'Content-Type' HTTP
header for containerized formats, such as mp4 or matroska.
Registered codecs can be found at http://mp4ra.org/#/codecs</doc>
<doc xml:space="preserve" filename="../subprojects/gst-plugins-base/gst-libs/gst/pbutils/codec-utils.c">Sets the level and profile in @caps if it can be determined from @sps. See
gst_codec_utils_h264_get_level() and gst_codec_utils_h264_get_profile()
<doc xml:space="preserve" filename="../subprojects/gst-plugins-base/gst-libs/gst/pbutils/codec-utils.c">%TRUE if the level and profile could be set, %FALSE otherwise.</doc>
<type name="gboolean" c:type="gboolean"/>
</return-value>
<parameters>
<parameter name="caps" transfer-ownership="none">
<doc xml:space="preserve" filename="../subprojects/gst-plugins-base/gst-libs/gst/pbutils/codec-utils.c">the #GstCaps to which the level and profile are to be added</doc>
<type name="Gst.Caps" c:type="GstCaps*"/>
</parameter>
<parameter name="sps" transfer-ownership="none">
<doc xml:space="preserve" filename="../subprojects/gst-plugins-base/gst-libs/gst/pbutils/codec-utils.c">Pointer to the sequence parameter set for the stream.</doc>
<doc xml:space="preserve" filename="../subprojects/gst-plugins-base/gst-libs/gst/pbutils/codec-utils.c">Converts the level indication (level_idc) in the stream's
sequence parameter set into a string. The SPS is expected to have the
same format as for gst_codec_utils_h264_get_profile().</doc>
<doc xml:space="preserve" filename="../subprojects/gst-plugins-base/gst-libs/gst/pbutils/codec-utils.c">The level as a const string, or %NULL if there is an error.</doc>
<type name="utf8" c:type="const gchar*"/>
</return-value>
<parameters>
<parameter name="sps" transfer-ownership="none">
<doc xml:space="preserve" filename="../subprojects/gst-plugins-base/gst-libs/gst/pbutils/codec-utils.c">Pointer to the sequence parameter set for the stream.</doc>
<doc xml:space="preserve" filename="../subprojects/gst-plugins-base/gst-libs/gst/pbutils/codec-utils.c">Transform a level string from the caps into the level_idc</doc>
<doc xml:space="preserve" filename="../subprojects/gst-plugins-base/gst-libs/gst/pbutils/codec-utils.c">the level_idc or 0 if the level is unknown</doc>
<doc xml:space="preserve" filename="../subprojects/gst-plugins-base/gst-libs/gst/pbutils/codec-utils.c">Converts the profile indication (profile_idc) in the stream's
sequence parameter set into a string. The SPS is expected to have the
following format, as defined in the H.264 specification. The SPS is viewed
as a bitstream here, with bit 0 being the most significant bit of the first
<doc xml:space="preserve" filename="../subprojects/gst-plugins-base/gst-libs/gst/pbutils/codec-utils.c">The profile as a const string, or %NULL if there is an error.</doc>
<type name="utf8" c:type="const gchar*"/>
</return-value>
<parameters>
<parameter name="sps" transfer-ownership="none">
<doc xml:space="preserve" filename="../subprojects/gst-plugins-base/gst-libs/gst/pbutils/codec-utils.c">Pointer to the sequence parameter set for the stream.</doc>
<doc xml:space="preserve" filename="../subprojects/gst-plugins-base/gst-libs/gst/pbutils/codec-utils.c">Parses profile, flags, and level from a H264 AVCC extradata/sequence_header.
These are most commonly retrieved from a video/x-h264 caps with a codec_data
buffer.
The format of H264 AVCC extradata/sequence_header is documented in the
ITU-T H.264 specification section 7.3.2.1.1 as well as in ISO/IEC 14496-15
<doc xml:space="preserve" filename="../subprojects/gst-plugins-base/gst-libs/gst/pbutils/codec-utils.c">return location for h264 profile_idc or %NULL</doc>
<doc xml:space="preserve" filename="../subprojects/gst-plugins-base/gst-libs/gst/pbutils/codec-utils.c">return location for h264 constraint set flags or %NULL</doc>
<doc xml:space="preserve" filename="../subprojects/gst-plugins-base/gst-libs/gst/pbutils/codec-utils.c">Sets the level, tier and profile in @caps if it can be determined from
@profile_tier_level. See gst_codec_utils_h265_get_level(),
gst_codec_utils_h265_get_tier() and gst_codec_utils_h265_get_profile()
<doc xml:space="preserve" filename="../subprojects/gst-plugins-base/gst-libs/gst/pbutils/codec-utils.c">%TRUE if the level, tier, profile could be set, %FALSE otherwise.</doc>
<type name="gboolean" c:type="gboolean"/>
</return-value>
<parameters>
<parameter name="caps" transfer-ownership="none">
<doc xml:space="preserve" filename="../subprojects/gst-plugins-base/gst-libs/gst/pbutils/codec-utils.c">the #GstCaps to which the level, tier and profile are to be added</doc>
<doc xml:space="preserve" filename="../subprojects/gst-plugins-base/gst-libs/gst/pbutils/codec-utils.c">Length of the data available in @profile_tier_level.</doc>
<doc xml:space="preserve" filename="../subprojects/gst-plugins-base/gst-libs/gst/pbutils/codec-utils.c">Converts the level indication (general_level_idc) in the stream's
profile_tier_level structure into a string. The profiel_tier_level is
expected to have the same format as for gst_codec_utils_h264_get_profile().</doc>
<doc xml:space="preserve" filename="../subprojects/gst-plugins-base/gst-libs/gst/pbutils/codec-utils.c">The level as a const string, or %NULL if there is an error.</doc>
<doc xml:space="preserve" filename="../subprojects/gst-plugins-base/gst-libs/gst/pbutils/codec-utils.c">Length of the data available in @profile_tier_level.</doc>
<doc xml:space="preserve" filename="../subprojects/gst-plugins-base/gst-libs/gst/pbutils/codec-utils.c">Transform a level string from the caps into the level_idc</doc>
<doc xml:space="preserve" filename="../subprojects/gst-plugins-base/gst-libs/gst/pbutils/codec-utils.c">the level_idc or 0 if the level is unknown</doc>
<doc xml:space="preserve" filename="../subprojects/gst-plugins-base/gst-libs/gst/pbutils/codec-utils.c">Converts the profile indication (general_profile_idc) in the stream's
profile_level_tier structure into a string. The profile_tier_level is
expected to have the following format, as defined in the H.265
specification. The profile_tier_level is viewed as a bitstream here,
with bit 0 being the most significant bit of the first byte.
<doc xml:space="preserve" filename="../subprojects/gst-plugins-base/gst-libs/gst/pbutils/codec-utils.c">The profile as a const string, or %NULL if there is an error.</doc>
<doc xml:space="preserve" filename="../subprojects/gst-plugins-base/gst-libs/gst/pbutils/codec-utils.c">Length of the data available in @profile_tier_level</doc>
<doc xml:space="preserve" filename="../subprojects/gst-plugins-base/gst-libs/gst/pbutils/codec-utils.c">Converts the tier indication (general_tier_flag) in the stream's
profile_tier_level structure into a string. The profile_tier_level
is expected to have the same format as for gst_codec_utils_h264_get_profile().</doc>
<doc xml:space="preserve" filename="../subprojects/gst-plugins-base/gst-libs/gst/pbutils/codec-utils.c">The tier as a const string, or %NULL if there is an error.</doc>
<doc xml:space="preserve" filename="../subprojects/gst-plugins-base/gst-libs/gst/pbutils/codec-utils.c">Length of the data available in @profile_tier_level.</doc>
<doc xml:space="preserve" filename="../subprojects/gst-plugins-base/gst-libs/gst/pbutils/codec-utils.c">Sets the level and profile in @caps if it can be determined from
@vis_obj_seq. See gst_codec_utils_mpeg4video_get_level() and
gst_codec_utils_mpeg4video_get_profile() for more details on the
<doc xml:space="preserve" filename="../subprojects/gst-plugins-base/gst-libs/gst/pbutils/codec-utils.c">%TRUE if the level and profile could be set, %FALSE otherwise.</doc>
<type name="gboolean" c:type="gboolean"/>
</return-value>
<parameters>
<parameter name="caps" transfer-ownership="none">
<doc xml:space="preserve" filename="../subprojects/gst-plugins-base/gst-libs/gst/pbutils/codec-utils.c">the #GstCaps to which the level and profile are to be added</doc>
<doc xml:space="preserve" filename="../subprojects/gst-plugins-base/gst-libs/gst/pbutils/codec-utils.c">Converts the level indication in the stream's visual object sequence into
a string. @vis_obj_seq is expected to be the data following the visual
<doc xml:space="preserve" filename="../subprojects/gst-plugins-base/gst-libs/gst/pbutils/codec-utils.c">The level as a const string, or NULL if there is an error.</doc>
<doc xml:space="preserve" filename="../subprojects/gst-plugins-base/gst-libs/gst/pbutils/codec-utils.c">Converts the profile indication in the stream's visual object sequence into
a string. @vis_obj_seq is expected to be the data following the visual
<doc xml:space="preserve" filename="../subprojects/gst-plugins-base/gst-libs/gst/pbutils/codec-utils.c">The profile as a const string, or NULL if there is an error.</doc>
<doc xml:space="preserve" filename="../subprojects/gst-plugins-base/gst-libs/gst/pbutils/codec-utils.c">Creates Opus caps from the given parameters.</doc>
<doc xml:space="preserve" filename="../subprojects/gst-plugins-base/gst-libs/gst/pbutils/codec-utils.c">The #GstCaps, or %NULL if the parameters would lead to
<doc xml:space="preserve" filename="../subprojects/gst-plugins-base/gst-libs/gst/pbutils/codec-utils.c">Creates Opus caps from the given OpusHead @header and comment header
<doc xml:space="preserve" filename="../subprojects/gst-plugins-base/gst-libs/gst/pbutils/codec-utils.c">Creates OpusHead header from the given parameters.</doc>
<doc xml:space="preserve" filename="../subprojects/gst-plugins-base/gst-libs/gst/pbutils/codec-utils.c">Parses Opus caps and fills the different fields with defaults if possible.</doc>
<doc xml:space="preserve" filename="../subprojects/gst-plugins-base/gst-libs/gst/pbutils/codec-utils.c">%TRUE if parsing was successful, %FALSE otherwise.</doc>
<type name="gboolean" c:type="gboolean"/>
</return-value>
<parameters>
<parameter name="caps" transfer-ownership="none">
<doc xml:space="preserve" filename="../subprojects/gst-plugins-base/gst-libs/gst/pbutils/codec-utils.c">the #GstCaps to parse the data from</doc>
<doc xml:space="preserve" filename="../subprojects/gst-plugins-base/gst-libs/gst/pbutils/codec-utils.c">%TRUE if parsing was successful, %FALSE otherwise.</doc>
<doc xml:space="preserve" filename="../subprojects/gst-plugins-base/gst-libs/gst/pbutils/gstdiscoverer-types.c">Increments the reference count of @info.</doc>
<doc xml:space="preserve" filename="../subprojects/gst-plugins-base/gst-libs/gst/pbutils/gstdiscoverer-types.c">Decrements the reference count of @info.</doc>
<doc xml:space="preserve" filename="../subprojects/gst-plugins-base/gst-libs/gst/pbutils/gstdiscoverer-types.c">Increments the reference count of @info.</doc>
<doc xml:space="preserve" filename="../subprojects/gst-plugins-base/gst-libs/gst/pbutils/gstdiscoverer-types.c">Decrements the reference count of @info.</doc>
<doc xml:space="preserve" filename="../subprojects/gst-plugins-base/gst-libs/gst/pbutils/encoding-profile.c">Functions to create and handle encoding profiles.
Encoding profiles describe the media types and settings one wishes to use for
an encoding process. The top-level profiles are commonly
#GstEncodingContainerProfile(s) (which contains a user-readable name and
description along with which container format to use). These, in turn,
reference one or more #GstEncodingProfile(s) which indicate which encoding
format should be used on each individual streams.
#GstEncodingProfile(s) can be provided to the 'encodebin' element, which will
take care of selecting and setting up the required elements to produce an
output stream conforming to the specifications of the profile.
The encoding profiles do not necessarily specify which #GstElement to use for
the various encoding and muxing steps, as they allow to specifying the format
one wishes to use.
Encoding profiles can be created at runtime by the application or loaded from
(and saved to) file using the #GstEncodingTarget API.
## The encoding profile serialization format
Encoding profiles can be serialized to be used in the command line tools or
to set it on other other #GObject-s using #gst_util_set_object_arg for
example.
The serialization format aims at being simple to understand although flexible
enough to describe any possible encoding profile. There are several ways to
describe the profile depending on the context but the general idea is that it
is a colon separated list of EncodingProfiles descriptions, the first one
needs to describe a #GstEncodingContainerProfile and the following ones
<doc xml:space="preserve" filename="../subprojects/gst-plugins-base/gst-libs/gst/pbutils/encoding-target.c">On top of the notion of profiles, we implement the notion of EncodingTarget.
Encoding Targets are basically a higher level of abstraction to define formats
for specific target types. Those can define several GstEncodingProfiles with
different names, for example one for transcoding in full HD, another one for
low res, etc.. which are defined in the same encoding target.
Basically if you want to encode a stream to send it to, say, youtube you should
have a Youtube encoding target defined in the "online-service" category.
## Encoding target serialization format
Encoding targets are serialized in a KeyFile like files.
<doc xml:space="preserve" filename="../subprojects/gst-plugins-base/gst-libs/gst/pbutils/encoding-target.c">List all available #GstEncodingTarget for the specified category, or all categories
<doc xml:space="preserve" filename="../subprojects/gst-plugins-base/gst-libs/gst/pbutils/encoding-target.c">Lists all #GstEncodingTarget categories present on disk.</doc>
<doc xml:space="preserve" filename="../subprojects/gst-plugins-base/gst-libs/gst/pbutils/encoding-profile.h">Increases the reference count of the @profile.</doc>
<doc xml:space="preserve" filename="../subprojects/gst-plugins-base/gst-libs/gst/pbutils/encoding-profile.h">Decreases the reference count of the @profile, possibly freeing the @profile.</doc>
<doc xml:space="preserve" filename="../subprojects/gst-plugins-base/gst-libs/gst/pbutils/encoding-target.h">Increases the reference count of the @target.</doc>
<doc xml:space="preserve" filename="../subprojects/gst-plugins-base/gst-libs/gst/pbutils/encoding-target.h">Decreases the reference count of the @target, possibly freeing it.</doc>
<doc xml:space="preserve" filename="../subprojects/gst-plugins-base/gst-libs/gst/pbutils/pbutils.c">libgstpbutils is a general utility library for plugins and applications.
It currently provides the
following:
* human-readable description strings of codecs, elements, sources, decoders,
encoders, or sinks from decoder/encoder caps, element names, or protocol
names.
* support for applications to initiate installation of missing plugins (if
this is supported by the distribution or operating system used)
* API for GStreamer elements to create missing-plugin messages in order to
communicate to the application that a certain type of plugin is missing
(decoder, encoder, URI protocol source, URI protocol sink, named element)
* API for applications to recognise and handle missing-plugin messages
## Linking to this library
You should obtain the required CFLAGS and LIBS using pkg-config on the
gstreamer-plugins-base-1.0 module. You will then also need to add
'-lgstreamer-pbutils-1.0' manually to your LIBS line.
## Library initialisation
Before using any of its functions, applications and plugins must call
gst_pb_utils_init() to initialise the library.</doc>
</docsection>
<docsection name="gstpbutilscodecutils">
<doc xml:space="preserve" filename="../subprojects/gst-plugins-base/gst-libs/gst/pbutils/codec-utils.c">Provides codec-specific ulility functions such as functions to provide the
codec profile and level in human-readable string form from header data.</doc>
</docsection>
<docsection name="gstpbutilsdescriptions">
<doc xml:space="preserve" filename="../subprojects/gst-plugins-base/gst-libs/gst/pbutils/descriptions.c">The above functions provide human-readable strings for media formats
and decoder/demuxer/depayloader/encoder/muxer/payloader elements for use
in error dialogs or other messages shown to users.
gst_pb_utils_add_codec_description_to_tag_list() is a utility function
for demuxer and decoder elements to add audio/video codec tags from a
Note that in the encoder and decoder case the introspected caps can be
more complex with additional fields, e.g.
`audio/mpeg,mpegversion=(int){2,4}`, so they will not always exactly
match the caps wanted by the application. It is up to the installer to
deal with this (either by doing proper caps intersection using the
GStreamer #GstCaps API, or by only taking into account the media type).
Another potential source of problems are plugins such as ladspa or
libvisual where the list of elements depends on the installed
ladspa/libvisual plugins at the time. This is also up to the
distribution to handle (but usually not relevant for playback
applications).</doc>
</docsection>
<docsection name="gstpbutilsmissingplugins">
<doc xml:space="preserve" filename="../subprojects/gst-plugins-base/gst-libs/gst/pbutils/missing-plugins.c">Functions to create, recognise and parse missing-plugins messages for
applications and elements.
Missing-plugin messages are posted on the bus by elements like decodebin
or playbin if they can't find an appropriate source element or decoder
element. The application can use these messages for two things:
* concise error/problem reporting to the user mentioning what exactly
is missing, see gst_missing_plugin_message_get_description()
* initiate installation of missing plugins, see
gst_missing_plugin_message_get_installer_detail() and
gst_install_plugins_async()
Applications may also create missing-plugin messages themselves to install
required elements that are missing, using the install mechanism mentioned
above.</doc>
</docsection>
<docsection name="gstpluginsbaseversion">
<doc xml:space="preserve" filename="../subprojects/gst-plugins-base/gst-libs/gst/pbutils/gstpluginsbaseversion.c">Use the GST_PLUGINS_BASE_VERSION_* macros e.g. to check what version of
gst-plugins-base you are building against, and gst_plugins_base_version()
if you need to check at runtime what version of the gst-plugins-base
libraries are being used / you are currently linked against.
The version macros get defined by including <gst/pbutils/pbutils.h>.</doc>
<doc xml:space="preserve" filename="../subprojects/gst-plugins-base/gst-libs/gst/pbutils/install-plugins.c">Requests plugin installation without blocking. Once the plugins have been
installed or installation has failed, @func will be called with the result
of the installation and your provided @user_data pointer.
This function requires a running GLib/Gtk main loop. If you are not
running a GLib/Gtk main loop, make sure to regularly call
g_main_context_iteration(NULL,FALSE).
The installer strings that make up @detail are typically obtained by
calling gst_missing_plugin_message_get_installer_detail() on missing-plugin
messages that have been caught on a pipeline's bus or created by the
application via the provided API, such as gst_missing_element_message_new().
It is possible to request the installation of multiple missing plugins in
one go (as might be required if there is a demuxer for a certain format
installed but no suitable video decoder and no suitable audio decoder).</doc>
<doc xml:space="preserve" filename="../subprojects/gst-plugins-base/gst-libs/gst/pbutils/install-plugins.c">result code whether an external installer could be started</doc>
<doc xml:space="preserve" filename="../subprojects/gst-plugins-base/gst-libs/gst/pbutils/install-plugins.c">the function to call when the installer program returns</doc>
<doc xml:space="preserve" filename="../subprojects/gst-plugins-base/gst-libs/gst/pbutils/install-plugins.c">the user data to pass to @func when called, or NULL</doc>
<doc xml:space="preserve" filename="../subprojects/gst-plugins-base/gst-libs/gst/pbutils/install-plugins.c">TRUE if plugin installation is in progress, otherwise FALSE</doc>
<doc xml:space="preserve" filename="../subprojects/gst-plugins-base/gst-libs/gst/pbutils/install-plugins.c">Convenience function to return the descriptive string associated
with a status code. This function returns English strings and
should not be used for user messages. It is here only to assist
<doc xml:space="preserve" filename="../subprojects/gst-plugins-base/gst-libs/gst/pbutils/install-plugins.c">a descriptive string for the status code in @ret</doc>
<type name="utf8" c:type="const gchar*"/>
</return-value>
<parameters>
<parameter name="ret" transfer-ownership="none">
<doc xml:space="preserve" filename="../subprojects/gst-plugins-base/gst-libs/gst/pbutils/install-plugins.c">the return status code</doc>
<doc xml:space="preserve" filename="../subprojects/gst-plugins-base/gst-libs/gst/pbutils/install-plugins.c">Checks whether plugin installation is likely to be supported by the
current environment. This currently only checks whether the helper script
that is to be provided by the distribution or operating system vendor
<doc xml:space="preserve" filename="../subprojects/gst-plugins-base/gst-libs/gst/pbutils/install-plugins.c">TRUE if plugin installation is likely to be supported.</doc>
<doc xml:space="preserve" filename="../subprojects/gst-plugins-base/gst-libs/gst/pbutils/install-plugins.c">Requests plugin installation and block until the plugins have been
installed or installation has failed.
This function should almost never be used, it only exists for cases where
a non-GLib main loop is running and the user wants to run it in a separate
thread and marshal the result back asynchronously into the main thread
using the other non-GLib main loop. You should almost always use
gst_install_plugins_async() instead of this function.</doc>
<doc xml:space="preserve" filename="../subprojects/gst-plugins-base/gst-libs/gst/pbutils/missing-plugins.c">Checks whether @msg is a missing plugins message.</doc>
<doc xml:space="preserve" filename="../subprojects/gst-plugins-base/gst-libs/gst/pbutils/missing-plugins.c">%TRUE if @msg is a missing-plugins message, otherwise %FALSE.</doc>
<doc xml:space="preserve" filename="../subprojects/gst-plugins-base/gst-libs/gst/pbutils/missing-plugins.c">Returns an opaque string containing all the details about the missing
element to be passed to an external installer called via
gst_install_plugins_async() or gst_install_plugins_sync().
This function is mainly for applications that call external plugin
installation mechanisms using one of the two above-mentioned functions in
the case where the application knows exactly what kind of plugin it is
<doc xml:space="preserve" filename="../subprojects/gst-plugins-base/gst-libs/gst/pbutils/missing-plugins.c">the (fixed) caps for which a decoder element is needed</doc>
<doc xml:space="preserve" filename="../subprojects/gst-plugins-base/gst-libs/gst/pbutils/missing-plugins.c">Creates a missing-plugin message for @element to notify the application
that a decoder element for a particular set of (fixed) caps is missing.
<doc xml:space="preserve" filename="../subprojects/gst-plugins-base/gst-libs/gst/pbutils/missing-plugins.c">the (fixed) caps for which a decoder element is needed</doc>
<doc xml:space="preserve" filename="../subprojects/gst-plugins-base/gst-libs/gst/pbutils/missing-plugins.c">Returns an opaque string containing all the details about the missing
element to be passed to an external installer called via
gst_install_plugins_async() or gst_install_plugins_sync().
This function is mainly for applications that call external plugin
installation mechanisms using one of the two above-mentioned functions in
the case where the application knows exactly what kind of plugin it is
<doc xml:space="preserve" filename="../subprojects/gst-plugins-base/gst-libs/gst/pbutils/missing-plugins.c">the name of the missing element (element factory),
<doc xml:space="preserve" filename="../subprojects/gst-plugins-base/gst-libs/gst/pbutils/missing-plugins.c">Creates a missing-plugin message for @element to notify the application
that a certain required element is missing. This function is mainly for
<doc xml:space="preserve" filename="../subprojects/gst-plugins-base/gst-libs/gst/pbutils/missing-plugins.c">the name of the missing element (element factory),
<doc xml:space="preserve" filename="../subprojects/gst-plugins-base/gst-libs/gst/pbutils/missing-plugins.c">Returns an opaque string containing all the details about the missing
element to be passed to an external installer called via
gst_install_plugins_async() or gst_install_plugins_sync().
This function is mainly for applications that call external plugin
installation mechanisms using one of the two above-mentioned functions in
the case where the application knows exactly what kind of plugin it is
<doc xml:space="preserve" filename="../subprojects/gst-plugins-base/gst-libs/gst/pbutils/missing-plugins.c">the (fixed) caps for which an encoder element is needed</doc>
<doc xml:space="preserve" filename="../subprojects/gst-plugins-base/gst-libs/gst/pbutils/missing-plugins.c">Creates a missing-plugin message for @element to notify the application
that an encoder element for a particular set of (fixed) caps is missing.
<doc xml:space="preserve" filename="../subprojects/gst-plugins-base/gst-libs/gst/pbutils/missing-plugins.c">the (fixed) caps for which an encoder element is needed</doc>
<doc xml:space="preserve" filename="../subprojects/gst-plugins-base/gst-libs/gst/pbutils/missing-plugins.c">Returns a localised string describing the missing feature, for use in
error dialogs and the like. Should never return NULL unless @msg is not
a valid missing-plugin message.
This function is mainly for applications that need a human-readable string
describing a missing plugin, given a previously collected missing-plugin
string with g_free() when not needed any longer.</doc>
<type name="utf8" c:type="gchar*"/>
</return-value>
<parameters>
<parameter name="msg" transfer-ownership="none">
<doc xml:space="preserve" filename="../subprojects/gst-plugins-base/gst-libs/gst/pbutils/missing-plugins.c">a missing-plugin #GstMessage of type #GST_MESSAGE_ELEMENT</doc>
<doc xml:space="preserve" filename="../subprojects/gst-plugins-base/gst-libs/gst/pbutils/missing-plugins.c">Returns an opaque string containing all the details about the missing
element to be passed to an external installer called via
gst_install_plugins_async() or gst_install_plugins_sync().
This function is mainly for applications that call external plugin
installation mechanisms using one of the two above-mentioned functions.</doc>
<doc xml:space="preserve" filename="../subprojects/gst-plugins-base/gst-libs/gst/pbutils/missing-plugins.c">a newly-allocated detail string, or NULL on error. Free string
with g_free() when not needed any longer.</doc>
<type name="utf8" c:type="gchar*"/>
</return-value>
<parameters>
<parameter name="msg" transfer-ownership="none">
<doc xml:space="preserve" filename="../subprojects/gst-plugins-base/gst-libs/gst/pbutils/missing-plugins.c">a missing-plugin #GstMessage of type #GST_MESSAGE_ELEMENT</doc>
<doc xml:space="preserve" filename="../subprojects/gst-plugins-base/gst-libs/gst/pbutils/missing-plugins.c">Returns an opaque string containing all the details about the missing
element to be passed to an external installer called via
gst_install_plugins_async() or gst_install_plugins_sync().
This function is mainly for applications that call external plugin
installation mechanisms using one of the two above-mentioned functions in
the case where the application knows exactly what kind of plugin it is
<doc xml:space="preserve" filename="../subprojects/gst-plugins-base/gst-libs/gst/pbutils/missing-plugins.c">the URI protocol the missing source needs to implement,
<doc xml:space="preserve" filename="../subprojects/gst-plugins-base/gst-libs/gst/pbutils/missing-plugins.c">Creates a missing-plugin message for @element to notify the application
that a sink element for a particular URI protocol is missing. This
<doc xml:space="preserve" filename="../subprojects/gst-plugins-base/gst-libs/gst/pbutils/missing-plugins.c">the URI protocol the missing sink needs to implement,
<doc xml:space="preserve" filename="../subprojects/gst-plugins-base/gst-libs/gst/pbutils/missing-plugins.c">Returns an opaque string containing all the details about the missing
element to be passed to an external installer called via
gst_install_plugins_async() or gst_install_plugins_sync().
This function is mainly for applications that call external plugin
installation mechanisms using one of the two above-mentioned functions in
the case where the application knows exactly what kind of plugin it is
<doc xml:space="preserve" filename="../subprojects/gst-plugins-base/gst-libs/gst/pbutils/missing-plugins.c">the URI protocol the missing source needs to implement,
<doc xml:space="preserve" filename="../subprojects/gst-plugins-base/gst-libs/gst/pbutils/missing-plugins.c">Creates a missing-plugin message for @element to notify the application
that a source element for a particular URI protocol is missing. This
<doc xml:space="preserve" filename="../subprojects/gst-plugins-base/gst-libs/gst/pbutils/missing-plugins.c">the URI protocol the missing source needs to implement,
<doc xml:space="preserve" filename="../subprojects/gst-plugins-base/gst-libs/gst/pbutils/descriptions.c">Adds a codec tag describing the format specified by @caps to @taglist.</doc>
<doc xml:space="preserve" filename="../subprojects/gst-plugins-base/gst-libs/gst/pbutils/descriptions.c">TRUE if a codec tag was added, FALSE otherwise.</doc>
<doc xml:space="preserve" filename="../subprojects/gst-plugins-base/gst-libs/gst/pbutils/descriptions.c">a GStreamer codec tag such as #GST_TAG_AUDIO_CODEC,
#GST_TAG_VIDEO_CODEC or #GST_TAG_CODEC. If none is specified,
the function will attempt to detect the appropriate category.</doc>
<type name="utf8" c:type="const gchar*"/>
</parameter>
<parameter name="caps" transfer-ownership="none">
<doc xml:space="preserve" filename="../subprojects/gst-plugins-base/gst-libs/gst/pbutils/descriptions.c">the (fixed) #GstCaps for which a codec tag should be added.</doc>
<doc xml:space="preserve" filename="../subprojects/gst-plugins-base/gst-libs/gst/pbutils/descriptions.c">Returns flags that describe the format of the caps if known. No flags are
<doc xml:space="preserve" filename="../subprojects/gst-plugins-base/gst-libs/gst/pbutils/descriptions.c">#GstPbUtilsCapsDescriptionFlags that describe @caps, or no flags
<doc xml:space="preserve" filename="../subprojects/gst-plugins-base/gst-libs/gst/pbutils/descriptions.c">the (fixed) #GstCaps for which flags are requested</doc>
<doc xml:space="preserve" filename="../subprojects/gst-plugins-base/gst-libs/gst/pbutils/descriptions.c">Returns a localised (as far as this is possible) string describing the
media format specified in @caps, for use in error dialogs or other messages
to be seen by the user. Should never return NULL unless @caps is invalid.
<doc xml:space="preserve" filename="../subprojects/gst-plugins-base/gst-libs/gst/pbutils/descriptions.c">a newly-allocated description string, or NULL on error. Free
string with g_free() when not needed any longer.</doc>
<type name="utf8" c:type="gchar*"/>
</return-value>
<parameters>
<parameter name="caps" transfer-ownership="none">
<doc xml:space="preserve" filename="../subprojects/gst-plugins-base/gst-libs/gst/pbutils/descriptions.c">the (fixed) #GstCaps for which an format description is needed</doc>
<doc xml:space="preserve" filename="../subprojects/gst-plugins-base/gst-libs/gst/pbutils/descriptions.c">Returns a localised string describing an decoder for the format specified
in @caps, for use in error dialogs or other messages to be seen by the user.
This function is mainly for internal use, applications would typically
use gst_missing_plugin_message_get_description() to get a description of
a missing feature from a missing-plugin message.</doc>
string with g_free() when not needed any longer.</doc>
<type name="utf8" c:type="gchar*"/>
</return-value>
<parameters>
<parameter name="caps" transfer-ownership="none">
<doc xml:space="preserve" filename="../subprojects/gst-plugins-base/gst-libs/gst/pbutils/descriptions.c">the (fixed) #GstCaps for which an decoder description is needed</doc>
<doc xml:space="preserve" filename="../subprojects/gst-plugins-base/gst-libs/gst/pbutils/descriptions.c">Returns a localised string describing the given element, for use in
error dialogs or other messages to be seen by the user.
This function is mainly for internal use, applications would typically
use gst_missing_plugin_message_get_description() to get a description of
a missing feature from a missing-plugin message.</doc>
<doc xml:space="preserve" filename="../subprojects/gst-plugins-base/gst-libs/gst/pbutils/descriptions.c">Returns a localised string describing an encoder for the format specified
in @caps, for use in error dialogs or other messages to be seen by the user.
This function is mainly for internal use, applications would typically
use gst_missing_plugin_message_get_description() to get a description of
a missing feature from a missing-plugin message.</doc>
string with g_free() when not needed any longer.</doc>
<type name="utf8" c:type="gchar*"/>
</return-value>
<parameters>
<parameter name="caps" transfer-ownership="none">
<doc xml:space="preserve" filename="../subprojects/gst-plugins-base/gst-libs/gst/pbutils/descriptions.c">the (fixed) #GstCaps for which an encoder description is needed</doc>
<doc xml:space="preserve" filename="../subprojects/gst-plugins-base/gst-libs/gst/pbutils/descriptions.c">Returns a possible file extension for the given caps, if known.</doc>
<doc xml:space="preserve" filename="../subprojects/gst-plugins-base/gst-libs/gst/pbutils/descriptions.c">a newly-allocated file extension string, or NULL on error. Free
string with g_free() when not needed any longer.</doc>
<type name="utf8" c:type="gchar*"/>
</return-value>
<parameters>
<parameter name="caps" transfer-ownership="none">
<doc xml:space="preserve" filename="../subprojects/gst-plugins-base/gst-libs/gst/pbutils/descriptions.c">the (fixed) #GstCaps for which a file extension is needed</doc>
<doc xml:space="preserve" filename="../subprojects/gst-plugins-base/gst-libs/gst/pbutils/descriptions.c">Returns a localised string describing a sink element handling the protocol
specified in @protocol, for use in error dialogs or other messages to be
seen by the user.
This function is mainly for internal use, applications would typically
use gst_missing_plugin_message_get_description() to get a description of
a missing feature from a missing-plugin message.</doc>
<doc xml:space="preserve" filename="../subprojects/gst-plugins-base/gst-libs/gst/pbutils/descriptions.c">the protocol the sink element needs to handle, e.g. "http"</doc>
<doc xml:space="preserve" filename="../subprojects/gst-plugins-base/gst-libs/gst/pbutils/descriptions.c">Returns a localised string describing a source element handling the protocol
specified in @protocol, for use in error dialogs or other messages to be
seen by the user.
This function is mainly for internal use, applications would typically
use gst_missing_plugin_message_get_description() to get a description of
a missing feature from a missing-plugin message.</doc>
<doc xml:space="preserve" filename="../subprojects/gst-plugins-base/gst-libs/gst/pbutils/descriptions.c">the protocol the source element needs to handle, e.g. "http"</doc>
<doc xml:space="preserve" filename="../subprojects/gst-plugins-base/gst-libs/gst/pbutils/pbutils.c">Initialises the base utils support library. This function is not
thread-safe. Applications should call it after calling gst_init(),
plugins should call it from their plugin_init function.
This function may be called multiple times. It will do nothing if the
<doc xml:space="preserve" filename="../subprojects/gst-plugins-base/gst-libs/gst/pbutils/gstpluginsbaseversion.c">Gets the version number of the GStreamer Plugins Base libraries.</doc>
<doc xml:space="preserve" filename="../subprojects/gst-plugins-base/gst-libs/gst/pbutils/gstpluginsbaseversion.c">pointer to a guint to store the major version number, or %NULL</doc>
<doc xml:space="preserve" filename="../subprojects/gst-plugins-base/gst-libs/gst/pbutils/gstpluginsbaseversion.c">pointer to a guint to store the minor version number, or %NULL</doc>
<doc xml:space="preserve" filename="../subprojects/gst-plugins-base/gst-libs/gst/pbutils/gstpluginsbaseversion.c">pointer to a guint to store the micro version number, or %NULL</doc>
<doc xml:space="preserve" filename="../subprojects/gst-plugins-base/gst-libs/gst/pbutils/gstpluginsbaseversion.c">pointer to a guint to store the nano version number, or %NULL</doc>
<doc xml:space="preserve" filename="../subprojects/gst-plugins-base/gst-libs/gst/pbutils/gstpluginsbaseversion.c">This function returns a string that is useful for describing this version
of GStreamer's gst-plugins-base libraries to the outside world: user agent
<doc xml:space="preserve" filename="../subprojects/gst-plugins-base/gst-libs/gst/pbutils/gstpluginsbaseversion.c">a newly allocated string describing this version of gst-plugins-base</doc>
