mirror of
https://gitlab.freedesktop.org/gstreamer/gstreamer.git
synced 2024-12-11 19:06:33 +00:00
231 lines
7.3 KiB
C
231 lines
7.3 KiB
C
/* GStreamer encoding profiles library
|
|
* Copyright (C) 2009 Edward Hervey <edward.hervey@collabora.co.uk>
|
|
* (C) 2009 Nokia Corporation
|
|
*
|
|
* 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.
|
|
*/
|
|
|
|
#ifndef __GST_PROFILE_H__
|
|
#define __GST_PROFILE_H__
|
|
|
|
#include <gst/gst.h>
|
|
|
|
typedef enum {
|
|
GST_ENCODING_PROFILE_UNKNOWN,
|
|
GST_ENCODING_PROFILE_VIDEO,
|
|
GST_ENCODING_PROFILE_AUDIO,
|
|
GST_ENCODING_PROFILE_TEXT
|
|
/* Room for extenstion */
|
|
} GstEncodingProfileType;
|
|
|
|
typedef struct _GstEncodingTarget GstEncodingTarget;
|
|
typedef struct _GstEncodingProfile GstEncodingProfile;
|
|
typedef struct _GstStreamEncodingProfile GstStreamEncodingProfile;
|
|
typedef struct _GstVideoEncodingProfile GstVideoEncodingProfile;
|
|
|
|
/* FIXME/UNKNOWNS
|
|
*
|
|
* Should encoding categories be well-known strings/quarks ?
|
|
*
|
|
*/
|
|
|
|
/**
|
|
* GstEncodingTarget:
|
|
* @name: The name of the target profile.
|
|
* @category: The target category (device, service, use-case).
|
|
* @profiles: A list of #GstProfile this device supports.
|
|
*
|
|
*/
|
|
struct _GstEncodingTarget {
|
|
gchar *name;
|
|
gchar *category;
|
|
GList *profiles;
|
|
}
|
|
|
|
/**
|
|
* GstEncodingProfile:
|
|
* @name: The name of the profile
|
|
* @format: The GStreamer mime type corresponding to the muxing format.
|
|
* @preset: The name of the #GstPreset(s) to be used on the muxer. This is optional.
|
|
* @multipass: Whether this profile is a multi-pass profile or not.
|
|
* @encodingprofiles: A list of #GstStreamEncodingProfile for the various streams.
|
|
*
|
|
*/
|
|
|
|
struct _GstEncodingProfile {
|
|
gchar *name;
|
|
gchar *format;
|
|
gchar *preset;
|
|
gboolean multipass;
|
|
GList *encodingprofiles;
|
|
};
|
|
|
|
/**
|
|
* GstStreamEncodingProfile:
|
|
* @type: Type of profile
|
|
* @format: The GStreamer mime type corresponding to the encoding format.
|
|
* @preset: The name of the #GstPreset to be used on the encoder. This is optional.
|
|
* @restriction: The #GstCaps restricting the input. This is optional.
|
|
* @presence: The number of streams that can be created. 0 => any.
|
|
*/
|
|
struct _GstStreamEncodingProfile {
|
|
GstEncodingProfileType type;
|
|
gchar *format;
|
|
gchar *preset;
|
|
GstCaps *restriction;
|
|
guint presence;
|
|
};
|
|
|
|
/**
|
|
* GstVideoEncodingProfile:
|
|
* @profile: common #GstEncodingProfile part.
|
|
* @pass: The pass number if this is part of a multi-pass profile. Starts at 1
|
|
* for multi-pass. Set to 0 if this is not part of a multi-pass profile.
|
|
* @variable_framerate: Do not enforce framerate on incoming raw stream. Default
|
|
* is FALSE.
|
|
*/
|
|
struct _GstVideoEncodingProfile {
|
|
GstStreamEncodingProfile profile;
|
|
guint pass;
|
|
gboolean variable_framerate;
|
|
};
|
|
|
|
/* Generic helper API */
|
|
/**
|
|
* gst_encoding_category_list_target:
|
|
* @category: a profile target category name. Can be NULL.
|
|
*
|
|
* Returns the list of all available #GstProfileTarget for the given @category.
|
|
* If @category is #NULL, then all available #GstProfileTarget are returned.
|
|
*/
|
|
GList *gst_encoding_category_list_target (gchar *category);
|
|
|
|
/**
|
|
* list available profile target categories
|
|
*/
|
|
GList *gst_profile_list_target_categories ();
|
|
|
|
gboolean gst_profile_target_save (GstProfileTarget *target);
|
|
|
|
/**
|
|
* gst_encoding_profile_get_input_caps:
|
|
* @profile: a #GstEncodingProfile
|
|
*
|
|
* Returns: the list of all caps the profile can accept. Caller must call
|
|
* gst_cap_unref on all unwanted caps once it is done with the list.
|
|
*/
|
|
GList * gst_profile_get_input_caps (GstEncodingProfile *profile);
|
|
|
|
/*
|
|
* Application convenience methods (possibly to be added in gst-pb-utils)
|
|
*/
|
|
|
|
/**
|
|
* gst_pb_utils_create_encoder:
|
|
* @caps: The #GstCaps corresponding to a codec format
|
|
* @preset: The name of a preset
|
|
* @name: The name to give to the returned instance, can be #NULL.
|
|
*
|
|
* Creates an encoder which can output the given @caps. If several encoders can
|
|
* output the given @caps, then the one with the highest rank will be picked.
|
|
* If a @preset is specified, it will be applied to the created encoder before
|
|
* returning it.
|
|
* If a @preset is specified, then the highest-ranked encoder that can accept
|
|
* the givein preset will be returned.
|
|
*
|
|
* Returns: The encoder instance with the preset applied if it is available.
|
|
* #NULL if no encoder is available.
|
|
*/
|
|
GstElement *gst_pb_utils_create_encoder(GstCaps *caps, gchar *preset, gchar *name);
|
|
/**
|
|
* gst_pb_utils_create_encoder_format:
|
|
*
|
|
* Convenience version of @gst_pb_utils_create_encoder except one does not need
|
|
* to create a #GstCaps.
|
|
*/
|
|
GstElement *gst_pb_utils_create_encoder_format(gchar *format, gchar *preset,
|
|
gchar *name);
|
|
|
|
/**
|
|
* gst_pb_utils_create_muxer:
|
|
* @caps: The #GstCaps corresponding to a codec format
|
|
* @preset: The name of a preset
|
|
*
|
|
* Creates an muxer which can output the given @caps. If several muxers can
|
|
* output the given @caps, then the one with the highest rank will be picked.
|
|
* If a @preset is specified, it will be applied to the created muxer before
|
|
* returning it.
|
|
* If a @preset is specified, then the highest-ranked muxer that can accept
|
|
* the givein preset will be returned.
|
|
*
|
|
* Returns: The muxer instance with the preset applied if it is available.
|
|
* #NULL if no muxer is available.
|
|
*/
|
|
GstElement *gst_pb_utils_create_muxer(GstCaps *caps, gchar *preset);
|
|
/**
|
|
* gst_pb_utils_create_muxer_format:
|
|
*
|
|
* Convenience version of @gst_pb_utils_create_muxer except one does not need
|
|
* to create a #GstCaps.
|
|
*/
|
|
GstElement *gst_pb_utils_create_muxer_format(gchar *format, gchar *preset,
|
|
gchar *name);
|
|
|
|
/**
|
|
* gst_pb_utils_encoders_compatible_with_muxer:
|
|
* @muxer: a muxer instance
|
|
*
|
|
* Finds a list of available encoders whose output can be fed to the given
|
|
* @muxer.
|
|
*
|
|
* Returns: A list of compatible encoders, or #NULL if none can be found.
|
|
*/
|
|
GList *gst_pb_utils_encoders_compatible_with_muxer(GstElement *muxer);
|
|
|
|
GList *gst_pb_utils_muxers_compatible_with_encoder(GstElement *encoder);
|
|
|
|
|
|
/*
|
|
* GstPreset modifications
|
|
*/
|
|
|
|
/**
|
|
* gst_preset_create:
|
|
* @preset: The #GstPreset on which to create the preset
|
|
* @name: A name for the preset
|
|
* @properties: The properties
|
|
*
|
|
* Creates a new preset with the given properties. This preset will only
|
|
* exist during the lifetime of the process.
|
|
* If you wish to use it after the lifetime of the process, you must call
|
|
* @gst_preset_save_preset.
|
|
*
|
|
* Returns: #TRUE if the preset could be created, else #FALSE.
|
|
*/
|
|
gboolean gst_preset_create (GstPreset *preset, gchar *name,
|
|
GstStructure *properties);
|
|
|
|
/**
|
|
* gst_preset_reset:
|
|
* @preset: a #GstPreset
|
|
*
|
|
* Sets all the properties of the element back to their default values.
|
|
*/
|
|
/* FIXME : This could actually be put at the GstObject level, or maybe even
|
|
* at the GObject level. */
|
|
void gst_preset_reset (GstPreset *preset);
|
|
|
|
#endif /* __GST_PROFILE_H__ */
|