/* GStreamer encoding profiles library * Copyright (C) 2009-2010 Edward Hervey * (C) 2009-2010 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. */ /** * SECTION:encoding-profile * @short_description: Encoding profile library * * * * 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. * * * Unlike other systems, the encoding profiles do not specify which #GstElement to use * for the various encoding and muxing steps, but instead relies on 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. * * * * Example: Creating a profile * * |[ * #include * ... * GstEncodingProfile * * create_ogg_theora_profile(void) *{ * GstEncodingContainerProfile *prof; * GstCaps *caps; * * caps = gst_caps_from_string("application/ogg"); * prof = gst_encoding_container_profile_new("Ogg audio/video", * "Standard OGG/THEORA/VORBIS", * caps, NULL); * gst_caps_unref (caps); * * caps = gst_caps_from_string("video/x-theora"); * gst_encoding_container_profile_add_profile(prof, * (GstEncodingProfile*) gst_encoding_video_profile_new(caps, NULL, NULL, 0)); * gst_caps_unref (caps); * * caps = gst_caps_from_string("audio/x-vorbis"); * gst_encoding_container_profile_add_profile(prof, * (GstEncodingProfile*) gst_encoding_audio_profile_new(caps, NULL, NULL, 0)); * gst_caps_unref (caps); * * return (GstEncodingProfile*) prof; *} * * * ]| * * * * Example: Using an encoder preset with a profile * * |[ * #include * ... * GstEncodingProfile * * create_ogg_theora_profile(void) *{ * GstEncodingVideoProfile *v; * GstEncodingAudioProfile *a; * GstEncodingContainerProfile *prof; * GstCaps *caps; * GstPreset *preset; * * caps = gst_caps_from_string ("application/ogg"); * prof = gst_encoding_container_profile_new ("Ogg audio/video", * "Standard OGG/THEORA/VORBIS", * caps, NULL); * gst_caps_unref (caps); * * preset = GST_PRESET (gst_element_factory_make ("theoraenc", "theorapreset")); * g_object_set (preset, "bitrate", 1000, NULL); * // The preset will be saved on the filesystem, * // so try to use a descriptive name * gst_preset_save_preset (preset, "theora_bitrate_preset"); * gst_object_unref (preset); * * caps = gst_caps_from_string ("video/x-theora"); * v = gst_encoding_video_profile_new (caps, "theorapreset", NULL, 0); * gst_encoding_container_profile_add_profile (prof, (GstEncodingProfile*) v); * gst_caps_unref (caps); * * caps = gst_caps_from_string ("audio/x-vorbis"); * a = gst_encoding_audio_profile_new (caps, NULL, NULL, 0); * gst_encoding_container_profile_add_profile (prof, (GstEncodingProfile*) a); * gst_caps_unref (caps); * * return (GstEncodingProfile*) prof; *} * * * ]| * * * * Example: Listing categories, targets and profiles * * |[ * #include * ... * GstEncodingProfile *prof; * GList *categories, *tmpc; * GList *targets, *tmpt; * ... * categories = gst_encoding_list_available_categories (); * * ... Show available categories to user ... * * for (tmpc = categories; tmpc; tmpc = tmpc->next) { * gchar *category = (gchar *) tmpc->data; * * ... and we can list all targets within that category ... * * targets = gst_encoding_list_all_targets (category); * * ... and show a list to our users ... * * g_list_foreach (targets, (GFunc) gst_encoding_target_unref, NULL); * g_list_free (targets); * } * * g_list_foreach (categories, (GFunc) g_free, NULL); * g_list_free (categories); * * ... * ]| * * */ #ifdef HAVE_CONFIG_H # include "config.h" #endif #include "encoding-profile.h" #include "encoding-target.h" #include /* GstEncodingProfile API */ struct _GstEncodingProfile { GObject parent; /*< public > */ gchar *name; gchar *description; GstCaps *format; gchar *preset; gchar *preset_name; guint presence; GstCaps *restriction; gboolean allow_dynamic_output; gboolean enabled; }; struct _GstEncodingProfileClass { GObjectClass parent_class; }; enum { FIRST_PROPERTY, PROP_RESTRICTION_CAPS, LAST_PROPERTY }; static GParamSpec *_properties[LAST_PROPERTY]; static void string_to_profile_transform (const GValue * src_value, GValue * dest_value); static gboolean gst_encoding_profile_deserialize_valfunc (GValue * value, const gchar * s); static void gst_encoding_profile_class_init (GstEncodingProfileClass * klass); static gpointer gst_encoding_profile_parent_class = NULL; static void gst_encoding_profile_class_intern_init (gpointer klass) { gst_encoding_profile_parent_class = g_type_class_peek_parent (klass); gst_encoding_profile_class_init ((GstEncodingProfileClass *) klass); } GType gst_encoding_profile_get_type (void) { static volatile gsize g_define_type_id__volatile = 0; if (g_once_init_enter (&g_define_type_id__volatile)) { GType g_define_type_id = g_type_register_static_simple (G_TYPE_OBJECT, g_intern_static_string ("GstEncodingProfile"), sizeof (GstEncodingProfileClass), (GClassInitFunc) gst_encoding_profile_class_intern_init, sizeof (GstEncodingProfile), NULL, (GTypeFlags) 0); static GstValueTable gstvtable = { G_TYPE_NONE, (GstValueCompareFunc) NULL, (GstValueSerializeFunc) NULL, (GstValueDeserializeFunc) gst_encoding_profile_deserialize_valfunc }; gstvtable.type = g_define_type_id; /* Register a STRING=>PROFILE GValueTransformFunc */ g_value_register_transform_func (G_TYPE_STRING, g_define_type_id, string_to_profile_transform); /* Register gst-specific GValue functions */ gst_value_register (&gstvtable); g_once_init_leave (&g_define_type_id__volatile, g_define_type_id); } return g_define_type_id__volatile; } static void _encoding_profile_get_property (GObject * object, guint prop_id, GValue * value, GParamSpec * pspec) { GstEncodingProfile *prof = (GstEncodingProfile *) object; switch (prop_id) { case PROP_RESTRICTION_CAPS: gst_value_set_caps (value, prof->restriction); break; default: G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec); break; } } static void _encoding_profile_set_property (GObject * object, guint prop_id, const GValue * value, GParamSpec * pspec) { GstEncodingProfile *prof = (GstEncodingProfile *) object; switch (prop_id) { case PROP_RESTRICTION_CAPS: gst_encoding_profile_set_restriction (prof, gst_caps_copy (gst_value_get_caps (value))); break; default: G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec); break; } } static void gst_encoding_profile_finalize (GObject * object) { GstEncodingProfile *prof = (GstEncodingProfile *) object; if (prof->name) g_free (prof->name); if (prof->format) gst_caps_unref (prof->format); if (prof->preset) g_free (prof->preset); if (prof->description) g_free (prof->description); if (prof->restriction) gst_caps_unref (prof->restriction); if (prof->preset_name) g_free (prof->preset_name); } static void gst_encoding_profile_class_init (GstEncodingProfileClass * klass) { GObjectClass *gobject_class = (GObjectClass *) klass; gobject_class->finalize = gst_encoding_profile_finalize; gobject_class->set_property = _encoding_profile_set_property; gobject_class->get_property = _encoding_profile_get_property; _properties[PROP_RESTRICTION_CAPS] = g_param_spec_boxed ("restriction-caps", "Restriction caps", "The restriction caps to use", GST_TYPE_CAPS, G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS); g_object_class_install_property (gobject_class, PROP_RESTRICTION_CAPS, _properties[PROP_RESTRICTION_CAPS]); } /** * gst_encoding_profile_get_name: * @profile: a #GstEncodingProfile * * Returns: the name of the profile, can be %NULL. */ const gchar * gst_encoding_profile_get_name (GstEncodingProfile * profile) { return profile->name; } /** * gst_encoding_profile_get_description: * @profile: a #GstEncodingProfile * * Returns: the description of the profile, can be %NULL. */ const gchar * gst_encoding_profile_get_description (GstEncodingProfile * profile) { return profile->description; } /** * gst_encoding_profile_get_format: * @profile: a #GstEncodingProfile * * Returns: (transfer full): the #GstCaps corresponding to the media format used * in the profile. Unref after usage. */ GstCaps * gst_encoding_profile_get_format (GstEncodingProfile * profile) { return (profile->format ? gst_caps_ref (profile->format) : NULL); } /** * gst_encoding_profile_get_preset: * @profile: a #GstEncodingProfile * * Returns: the name of the #GstPreset to be used in the profile. * This is the name that has been set when saving the preset. */ const gchar * gst_encoding_profile_get_preset (GstEncodingProfile * profile) { return profile->preset; } /** * gst_encoding_profile_get_preset_name: * @profile: a #GstEncodingProfile * * Returns: the name of the #GstPreset factory to be used in the profile. */ const gchar * gst_encoding_profile_get_preset_name (GstEncodingProfile * profile) { return profile->preset_name; } /** * gst_encoding_profile_get_presence: * @profile: a #GstEncodingProfile * * Returns: The number of times the profile is used in its parent * container profile. If 0, it is not a mandatory stream. */ guint gst_encoding_profile_get_presence (GstEncodingProfile * profile) { return profile->presence; } /** * gst_encoding_profile_get_enabled: * @profile: a #GstEncodingProfile * * Returns: Whther @profile is enabled or not */ gboolean gst_encoding_profile_is_enabled (GstEncodingProfile * profile) { g_return_val_if_fail (GST_IS_ENCODING_PROFILE (profile), FALSE); return profile->enabled; } /** * gst_encoding_profile_get_restriction: * @profile: a #GstEncodingProfile * * Returns: (transfer full): 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). * Can be %NULL. Unref after usage. */ GstCaps * gst_encoding_profile_get_restriction (GstEncodingProfile * profile) { return (profile->restriction ? gst_caps_ref (profile->restriction) : NULL); } /** * gst_encoding_profile_set_name: * @profile: a #GstEncodingProfile * @name: the name to set on the profile * * Set @name as the given name for the @profile. A copy of @name will be made * internally. */ void gst_encoding_profile_set_name (GstEncodingProfile * profile, const gchar * name) { if (profile->name) g_free (profile->name); profile->name = g_strdup (name); } /** * gst_encoding_profile_set_description: * @profile: a #GstEncodingProfile * @description: the description to set on the profile * * Set @description as the given description for the @profile. A copy of * @description will be made internally. */ void gst_encoding_profile_set_description (GstEncodingProfile * profile, const gchar * description) { if (profile->description) g_free (profile->description); profile->description = g_strdup (description); } /** * gst_encoding_profile_set_format: * @profile: a #GstEncodingProfile * @format: the media format to use in the profile. * * Sets the media format used in the profile. */ void gst_encoding_profile_set_format (GstEncodingProfile * profile, GstCaps * format) { if (profile->format) gst_caps_unref (profile->format); profile->format = gst_caps_ref (format); } /** * gst_encoding_profile_get_allow_dynamic_output: * @profile: a #GstEncodingProfile * * Get whether the format that has been negotiated in at some point can be renegotiated * later during the encoding. */ gboolean gst_encoding_profile_get_allow_dynamic_output (GstEncodingProfile * profile) { return profile->allow_dynamic_output; } /** * gst_encoding_profile_set_allow_dynamic_output: * @profile: a #GstEncodingProfile * @allow_dynamic_output: Whether the format that has been negotiated first can be renegotiated * during the encoding * * Sets whether the format that has been negotiated in at some point can be renegotiated * later during the encoding. */ void gst_encoding_profile_set_allow_dynamic_output (GstEncodingProfile * profile, gboolean allow_dynamic_output) { profile->allow_dynamic_output = allow_dynamic_output; } /** * gst_encoding_profile_set_preset: * @profile: a #GstEncodingProfile * @preset: the element preset to use * * 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. */ void gst_encoding_profile_set_preset (GstEncodingProfile * profile, const gchar * preset) { if (profile->preset) g_free (profile->preset); profile->preset = g_strdup (preset); } /** * gst_encoding_profile_set_preset_name: * @profile: a #GstEncodingProfile * @preset_name: The name of the preset to use in this @profile. * * Sets the name of the #GstPreset's factory to be used in the profile. */ void gst_encoding_profile_set_preset_name (GstEncodingProfile * profile, const gchar * preset_name) { if (profile->preset_name) g_free (profile->preset_name); profile->preset_name = g_strdup (preset_name); } /** * gst_encoding_profile_set_presence: * @profile: a #GstEncodingProfile * @presence: the number of time the profile can be used * * Set the number of time the profile is used in its parent * container profile. If 0, it is not a mandatory stream */ void gst_encoding_profile_set_presence (GstEncodingProfile * profile, guint presence) { profile->presence = presence; } /** * gst_encoding_profile_set_enabled: * @profile: a #GstEncodingProfile * @enabled: %FALSE to disable #profile, %TRUE to enable it * * Set whether the profile should be used or not. */ void gst_encoding_profile_set_enabled (GstEncodingProfile * profile, gboolean enabled) { g_return_if_fail (GST_IS_ENCODING_PROFILE (profile)); profile->enabled = enabled; } /** * gst_encoding_profile_set_restriction: * @profile: a #GstEncodingProfile * @restriction: (transfer full): the restriction to apply * * 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. */ void gst_encoding_profile_set_restriction (GstEncodingProfile * profile, GstCaps * restriction) { if (profile->restriction) gst_caps_unref (profile->restriction); profile->restriction = restriction; g_object_notify_by_pspec (G_OBJECT (profile), _properties[PROP_RESTRICTION_CAPS]); } /* Container profiles */ struct _GstEncodingContainerProfile { GstEncodingProfile parent; GList *encodingprofiles; }; struct _GstEncodingContainerProfileClass { GstEncodingProfileClass parent; }; G_DEFINE_TYPE (GstEncodingContainerProfile, gst_encoding_container_profile, GST_TYPE_ENCODING_PROFILE); static void gst_encoding_container_profile_init (GstEncodingContainerProfile * prof) { /* Nothing to initialize */ } static void gst_encoding_container_profile_finalize (GObject * object) { GstEncodingContainerProfile *prof = (GstEncodingContainerProfile *) object; g_list_foreach (prof->encodingprofiles, (GFunc) g_object_unref, NULL); g_list_free (prof->encodingprofiles); G_OBJECT_CLASS (gst_encoding_container_profile_parent_class)->finalize ((GObject *) prof); } static void gst_encoding_container_profile_class_init (GstEncodingContainerProfileClass * k) { GObjectClass *gobject_class = (GObjectClass *) k; gobject_class->finalize = gst_encoding_container_profile_finalize; } /** * gst_encoding_container_profile_get_profiles: * @profile: a #GstEncodingContainerProfile * * Returns: (element-type GstPbutils.EncodingProfile) (transfer none): * the list of contained #GstEncodingProfile. */ const GList * gst_encoding_container_profile_get_profiles (GstEncodingContainerProfile * profile) { return profile->encodingprofiles; } /* Video profiles */ struct _GstEncodingVideoProfile { GstEncodingProfile parent; guint pass; gboolean variableframerate; }; struct _GstEncodingVideoProfileClass { GstEncodingProfileClass parent; }; G_DEFINE_TYPE (GstEncodingVideoProfile, gst_encoding_video_profile, GST_TYPE_ENCODING_PROFILE); static void gst_encoding_video_profile_init (GstEncodingVideoProfile * prof) { /* Nothing to initialize */ } static void gst_encoding_video_profile_class_init (GstEncodingVideoProfileClass * klass) { } /** * gst_encoding_video_profile_get_pass: * @prof: a #GstEncodingVideoProfile * * Get the pass number if this is part of a multi-pass profile. * * Returns: The pass number. Starts at 1 for multi-pass. 0 if this is * not a multi-pass profile */ guint gst_encoding_video_profile_get_pass (GstEncodingVideoProfile * prof) { return prof->pass; } /** * gst_encoding_video_profile_get_variableframerate: * @prof: a #GstEncodingVideoProfile * * Returns: Whether non-constant video framerate is allowed for encoding. */ gboolean gst_encoding_video_profile_get_variableframerate (GstEncodingVideoProfile * prof) { return prof->variableframerate; } /** * gst_encoding_video_profile_set_pass: * @prof: a #GstEncodingVideoProfile * @pass: the pass number for this profile * * 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, * you may set it to 0 (the default value). */ void gst_encoding_video_profile_set_pass (GstEncodingVideoProfile * prof, guint pass) { prof->pass = pass; } /** * gst_encoding_video_profile_set_variableframerate: * @prof: a #GstEncodingVideoProfile * @variableframerate: a boolean * * 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 * constance framerate. */ void gst_encoding_video_profile_set_variableframerate (GstEncodingVideoProfile * prof, gboolean variableframerate) { prof->variableframerate = variableframerate; } /* Audio profiles */ struct _GstEncodingAudioProfile { GstEncodingProfile parent; }; struct _GstEncodingAudioProfileClass { GstEncodingProfileClass parent; }; G_DEFINE_TYPE (GstEncodingAudioProfile, gst_encoding_audio_profile, GST_TYPE_ENCODING_PROFILE); static void gst_encoding_audio_profile_init (GstEncodingAudioProfile * prof) { /* Nothing to initialize */ } static void gst_encoding_audio_profile_class_init (GstEncodingAudioProfileClass * klass) { } static inline gboolean _gst_caps_is_equal_safe (GstCaps * a, GstCaps * b) { if (a == b) return TRUE; if ((a == NULL) || (b == NULL)) return FALSE; return gst_caps_is_equal (a, b); } static gint _compare_container_encoding_profiles (GstEncodingContainerProfile * ca, GstEncodingContainerProfile * cb) { GList *tmp; if (g_list_length (ca->encodingprofiles) != g_list_length (cb->encodingprofiles)) return -1; for (tmp = ca->encodingprofiles; tmp; tmp = tmp->next) { GstEncodingProfile *prof = (GstEncodingProfile *) tmp->data; if (!gst_encoding_container_profile_contains_profile (ca, prof)) return -1; } return 0; } static gint _compare_encoding_profiles (const GstEncodingProfile * a, const GstEncodingProfile * b) { if ((G_TYPE_FROM_INSTANCE (a) != G_TYPE_FROM_INSTANCE (b)) || !_gst_caps_is_equal_safe (a->format, b->format) || (g_strcmp0 (a->preset, b->preset) != 0) || (g_strcmp0 (a->name, b->name) != 0) || (g_strcmp0 (a->description, b->description) != 0)) return -1; if (GST_IS_ENCODING_CONTAINER_PROFILE (a)) return _compare_container_encoding_profiles (GST_ENCODING_CONTAINER_PROFILE (a), GST_ENCODING_CONTAINER_PROFILE (b)); if (GST_IS_ENCODING_VIDEO_PROFILE (a)) { GstEncodingVideoProfile *va = (GstEncodingVideoProfile *) a; GstEncodingVideoProfile *vb = (GstEncodingVideoProfile *) b; if ((va->pass != vb->pass) || (va->variableframerate != vb->variableframerate)) return -1; } return 0; } /** * gst_encoding_container_profile_contains_profile: * @container: a #GstEncodingContainerProfile * @profile: a #GstEncodingProfile * * Checks if @container contains a #GstEncodingProfile identical to * @profile. * * Returns: %TRUE if @container contains a #GstEncodingProfile identical * to @profile, else %FALSE. */ gboolean gst_encoding_container_profile_contains_profile (GstEncodingContainerProfile * container, GstEncodingProfile * profile) { g_return_val_if_fail (GST_IS_ENCODING_CONTAINER_PROFILE (container), FALSE); g_return_val_if_fail (GST_IS_ENCODING_PROFILE (profile), FALSE); return (g_list_find_custom (container->encodingprofiles, profile, (GCompareFunc) _compare_encoding_profiles) != NULL); } /** * gst_encoding_container_profile_add_profile: * @container: the #GstEncodingContainerProfile to use * @profile: (transfer full): the #GstEncodingProfile to add. * * 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. * * Returns: %TRUE if the @stream was properly added, else %FALSE. */ gboolean gst_encoding_container_profile_add_profile (GstEncodingContainerProfile * container, GstEncodingProfile * profile) { g_return_val_if_fail (GST_IS_ENCODING_CONTAINER_PROFILE (container), FALSE); g_return_val_if_fail (GST_IS_ENCODING_PROFILE (profile), FALSE); if (g_list_find_custom (container->encodingprofiles, profile, (GCompareFunc) _compare_encoding_profiles)) { GST_ERROR ("Encoding profile already contains an identical GstEncodingProfile"); return FALSE; } container->encodingprofiles = g_list_append (container->encodingprofiles, profile); return TRUE; } static GstEncodingProfile * common_creation (GType objtype, GstCaps * format, const gchar * preset, const gchar * name, const gchar * description, GstCaps * restriction, guint presence) { GstEncodingProfile *prof; prof = (GstEncodingProfile *) g_object_new (objtype, NULL); if (name) prof->name = g_strdup (name); if (description) prof->description = g_strdup (description); if (preset) prof->preset = g_strdup (preset); if (format) prof->format = gst_caps_ref (format); if (restriction) prof->restriction = gst_caps_ref (restriction); prof->presence = presence; prof->preset_name = NULL; prof->allow_dynamic_output = TRUE; prof->enabled = TRUE; return prof; } /** * gst_encoding_container_profile_new: * @name: (allow-none): The name of the container profile, can be %NULL * @description: (allow-none): The description of the container profile, * can be %NULL * @format: The format to use for this profile * @preset: (allow-none): The preset to use for this profile. * * Creates a new #GstEncodingContainerProfile. * * Returns: The newly created #GstEncodingContainerProfile. */ GstEncodingContainerProfile * gst_encoding_container_profile_new (const gchar * name, const gchar * description, GstCaps * format, const gchar * preset) { g_return_val_if_fail (GST_IS_CAPS (format), NULL); return (GstEncodingContainerProfile *) common_creation (GST_TYPE_ENCODING_CONTAINER_PROFILE, format, preset, name, description, NULL, 0); } /** * gst_encoding_video_profile_new: * @format: the #GstCaps * @preset: (allow-none): the preset(s) to use on the encoder, can be #NULL * @restriction: (allow-none): the #GstCaps used to restrict the input to the encoder, can be * NULL. See gst_encoding_profile_get_restriction() for more details. * @presence: the number of time this stream must be used. 0 means any number of * times (including never) * * Creates a new #GstEncodingVideoProfile * * All provided allocatable arguments will be internally copied, so can be * safely freed/unreferenced after calling this method. * * If you wish to control the pass number (in case of multi-pass scenarios), * please refer to the gst_encoding_video_profile_set_pass() documentation. * * If you wish to use/force a constant framerate please refer to the * gst_encoding_video_profile_set_variableframerate() documentation. * * Returns: the newly created #GstEncodingVideoProfile. */ GstEncodingVideoProfile * gst_encoding_video_profile_new (GstCaps * format, const gchar * preset, GstCaps * restriction, guint presence) { return (GstEncodingVideoProfile *) common_creation (GST_TYPE_ENCODING_VIDEO_PROFILE, format, preset, NULL, NULL, restriction, presence); } /** * gst_encoding_audio_profile_new: * @format: the #GstCaps * @preset: (allow-none): the preset(s) to use on the encoder, can be #NULL * @restriction: (allow-none): the #GstCaps used to restrict the input to the encoder, can be * NULL. See gst_encoding_profile_get_restriction() for more details. * @presence: the number of time this stream must be used. 0 means any number of * times (including never) * * Creates a new #GstEncodingAudioProfile * * All provided allocatable arguments will be internally copied, so can be * safely freed/unreferenced after calling this method. * * Returns: the newly created #GstEncodingAudioProfile. */ GstEncodingAudioProfile * gst_encoding_audio_profile_new (GstCaps * format, const gchar * preset, GstCaps * restriction, guint presence) { return (GstEncodingAudioProfile *) common_creation (GST_TYPE_ENCODING_AUDIO_PROFILE, format, preset, NULL, NULL, restriction, presence); } /** * gst_encoding_profile_is_equal: * @a: a #GstEncodingProfile * @b: a #GstEncodingProfile * * Checks whether the two #GstEncodingProfile are equal * * Returns: %TRUE if @a and @b are equal, else %FALSE. */ gboolean gst_encoding_profile_is_equal (GstEncodingProfile * a, GstEncodingProfile * b) { return (_compare_encoding_profiles (a, b) == 0); } /** * gst_encoding_profile_get_input_caps: * @profile: a #GstEncodingProfile * * Computes the full output caps that this @profile will be able to consume. * * Returns: (transfer full): The full caps the given @profile can consume. Call * gst_caps_unref() when you are done with the caps. */ GstCaps * gst_encoding_profile_get_input_caps (GstEncodingProfile * profile) { GstCaps *out, *tmp; GList *ltmp; GstStructure *st, *outst; GQuark out_name; guint i, len; GstCaps *fcaps; if (GST_IS_ENCODING_CONTAINER_PROFILE (profile)) { GstCaps *res = gst_caps_new_empty (); for (ltmp = GST_ENCODING_CONTAINER_PROFILE (profile)->encodingprofiles; ltmp; ltmp = ltmp->next) { GstEncodingProfile *sprof = (GstEncodingProfile *) ltmp->data; res = gst_caps_merge (res, gst_encoding_profile_get_input_caps (sprof)); } return res; } fcaps = profile->format; /* fast-path */ if ((profile->restriction == NULL) || gst_caps_is_any (profile->restriction)) return gst_caps_ref (fcaps); /* Combine the format with the restriction caps */ outst = gst_caps_get_structure (fcaps, 0); out_name = gst_structure_get_name_id (outst); tmp = gst_caps_new_empty (); len = gst_caps_get_size (profile->restriction); for (i = 0; i < len; i++) { st = gst_structure_copy (gst_caps_get_structure (profile->restriction, i)); st->name = out_name; gst_caps_append_structure (tmp, st); } out = gst_caps_intersect (tmp, fcaps); gst_caps_unref (tmp); return out; } /** * gst_encoding_profile_get_type_nick: * @profile: a #GstEncodingProfile * * Returns: the human-readable name of the type of @profile. */ const gchar * gst_encoding_profile_get_type_nick (GstEncodingProfile * profile) { if (GST_IS_ENCODING_CONTAINER_PROFILE (profile)) return "container"; if (GST_IS_ENCODING_VIDEO_PROFILE (profile)) return "video"; if (GST_IS_ENCODING_AUDIO_PROFILE (profile)) return "audio"; return NULL; } extern const gchar *pb_utils_get_file_extension_from_caps (const GstCaps * caps); gboolean pb_utils_is_tag (const GstCaps * caps); static gboolean gst_encoding_profile_has_format (GstEncodingProfile * profile, const gchar * media_type) { GstCaps *caps; gboolean ret; caps = gst_encoding_profile_get_format (profile); ret = gst_structure_has_name (gst_caps_get_structure (caps, 0), media_type); gst_caps_unref (caps); return ret; } static gboolean gst_encoding_container_profile_has_video (GstEncodingContainerProfile * profile) { const GList *l; for (l = profile->encodingprofiles; l != NULL; l = l->next) { if (GST_IS_ENCODING_VIDEO_PROFILE (l->data)) return TRUE; if (GST_IS_ENCODING_CONTAINER_PROFILE (l->data) && gst_encoding_container_profile_has_video (l->data)) return TRUE; } return FALSE; } /** * gst_encoding_profile_get_file_extension: * @profile: a #GstEncodingProfile * * Returns: a suitable file extension for @profile, or NULL. */ const gchar * gst_encoding_profile_get_file_extension (GstEncodingProfile * profile) { GstEncodingContainerProfile *cprofile; const gchar *ext = NULL; gboolean has_video; GstCaps *caps; guint num_children; g_return_val_if_fail (GST_IS_ENCODING_PROFILE (profile), NULL); caps = gst_encoding_profile_get_format (profile); ext = pb_utils_get_file_extension_from_caps (caps); if (!GST_IS_ENCODING_CONTAINER_PROFILE (profile)) goto done; cprofile = GST_ENCODING_CONTAINER_PROFILE (profile); num_children = g_list_length (cprofile->encodingprofiles); /* if it's a tag container profile (e.g. id3mux/apemux), we need * to look at what's inside it */ if (pb_utils_is_tag (caps)) { GST_DEBUG ("tag container profile"); if (num_children == 1) { GstEncodingProfile *child_profile = cprofile->encodingprofiles->data; ext = gst_encoding_profile_get_file_extension (child_profile); } else { GST_WARNING ("expected exactly one child profile with tag profile"); } goto done; } if (num_children == 0) goto done; /* special cases */ has_video = gst_encoding_container_profile_has_video (cprofile); /* Ogg */ if (strcmp (ext, "ogg") == 0) { /* ogg with video => .ogv */ if (has_video) { ext = "ogv"; goto done; } /* ogg with just speex audio => .spx */ if (num_children == 1) { GstEncodingProfile *child_profile = cprofile->encodingprofiles->data; if (GST_IS_ENCODING_AUDIO_PROFILE (child_profile) && gst_encoding_profile_has_format (child_profile, "audio/x-speex")) { ext = "spx"; goto done; } } /* does anyone actually use .oga for ogg audio files? */ goto done; } /* Matroska */ if (has_video && strcmp (ext, "mka") == 0) { ext = "mkv"; goto done; } /* Windows Media / ASF */ if (gst_encoding_profile_has_format (profile, "video/x-ms-asf")) { const GList *l; guint num_wmv = 0, num_wma = 0, num_other = 0; for (l = cprofile->encodingprofiles; l != NULL; l = l->next) { if (gst_encoding_profile_has_format (l->data, "video/x-wmv")) ++num_wmv; else if (gst_encoding_profile_has_format (l->data, "audio/x-wma")) ++num_wma; else ++num_other; } if (num_other > 0) ext = "asf"; else if (num_wmv > 0) ext = "wmv"; else if (num_wma > 0) ext = "wma"; goto done; } done: GST_INFO ("caps %" GST_PTR_FORMAT ", ext: %s", caps, GST_STR_NULL (ext)); gst_caps_unref (caps); return ext; } /** * gst_encoding_profile_find: * @targetname: (transfer none): The name of the target * @profilename: (transfer none): The name of the profile * @category: (transfer none) (allow-none): The target category. Can be %NULL * * Find the #GstEncodingProfile with the specified name and category. * * Returns: (transfer full): The matching #GstEncodingProfile or %NULL. */ GstEncodingProfile * gst_encoding_profile_find (const gchar * targetname, const gchar * profilename, const gchar * category) { GstEncodingProfile *res = NULL; GstEncodingTarget *target; g_return_val_if_fail (targetname != NULL, NULL); g_return_val_if_fail (profilename != NULL, NULL); /* FIXME : how do we handle profiles named the same in several * categories but of which only one has the required profile ? */ target = gst_encoding_target_load (targetname, category, NULL); if (target) { res = gst_encoding_target_get_profile (target, profilename); gst_encoding_target_unref (target); } return res; } static GstEncodingProfile * combo_search (const gchar * pname) { GstEncodingProfile *res; gchar **split; /* Splitup */ split = g_strsplit (pname, "/", 2); if (g_strv_length (split) != 2) return NULL; res = gst_encoding_profile_find (split[0], split[1], NULL); g_strfreev (split); return res; } /* GValue transform function */ static void string_to_profile_transform (const GValue * src_value, GValue * dest_value) { const gchar *profilename; GstEncodingProfile *profile; profilename = g_value_get_string (src_value); profile = combo_search (profilename); if (profile) g_value_take_object (dest_value, (GObject *) profile); } static gboolean gst_encoding_profile_deserialize_valfunc (GValue * value, const gchar * s) { GstEncodingProfile *profile; profile = combo_search (s); if (profile) { g_value_take_object (value, (GObject *) profile); return TRUE; } return FALSE; } /** * gst_encoding_profile_from_discoverer: * @info: (transfer none): The #GstDiscovererInfo to read from * * Creates a #GstEncodingProfile matching the formats from the given * #GstDiscovererInfo. Streams other than audio or video (eg, * subtitles), are currently ignored. * * Returns: (transfer full): The new #GstEncodingProfile or %NULL. */ GstEncodingProfile * gst_encoding_profile_from_discoverer (GstDiscovererInfo * info) { GstEncodingContainerProfile *profile; GstDiscovererStreamInfo *sinfo; GList *streams, *stream; GstCaps *caps = NULL; if (!info || gst_discoverer_info_get_result (info) != GST_DISCOVERER_OK) return NULL; sinfo = gst_discoverer_info_get_stream_info (info); if (!sinfo) return NULL; caps = gst_discoverer_stream_info_get_caps (sinfo); GST_LOG ("Container: %" GST_PTR_FORMAT "\n", caps); profile = gst_encoding_container_profile_new ("auto-generated", "Automatically generated from GstDiscovererInfo", caps, NULL); gst_caps_unref (caps); if (!profile) { GST_ERROR ("Failed to create container profile from caps %" GST_PTR_FORMAT, caps); return NULL; } streams = gst_discoverer_container_info_get_streams (GST_DISCOVERER_CONTAINER_INFO (sinfo)); for (stream = streams; stream; stream = stream->next) { GstEncodingProfile *sprofile = NULL; sinfo = (GstDiscovererStreamInfo *) stream->data; caps = gst_discoverer_stream_info_get_caps (sinfo); GST_LOG ("Stream: %" GST_PTR_FORMAT "\n", caps); if (GST_IS_DISCOVERER_AUDIO_INFO (sinfo)) { sprofile = (GstEncodingProfile *) gst_encoding_audio_profile_new (caps, NULL, NULL, 0); } else if (GST_IS_DISCOVERER_VIDEO_INFO (sinfo)) { sprofile = (GstEncodingProfile *) gst_encoding_video_profile_new (caps, NULL, NULL, 0); } else { /* subtitles or other ? ignore for now */ } if (sprofile) gst_encoding_container_profile_add_profile (profile, sprofile); else GST_ERROR ("Failed to create stream profile from caps %" GST_PTR_FORMAT, caps); gst_caps_unref (caps); } gst_discoverer_stream_info_list_free (streams); return (GstEncodingProfile *) profile; }