diff options
Diffstat (limited to 'gst-libs/gst/play/play.c')
| -rw-r--r-- | gst-libs/gst/play/play.c | 758 |
1 files changed, 0 insertions, 758 deletions
diff --git a/gst-libs/gst/play/play.c b/gst-libs/gst/play/play.c deleted file mode 100644 index d41c69a8..00000000 --- a/gst-libs/gst/play/play.c +++ /dev/null @@ -1,758 +0,0 @@ -/* GStreamer - * Copyright (C) 2003 Julien Moutte <julien@moutte.net> - * - * 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., 59 Temple Place - Suite 330, - * Boston, MA 02111-1307, USA. - */ - -#ifdef HAVE_CONFIG_H -#include "config.h" -#endif - -#include <string.h> -#include <unistd.h> -#include <gst/gst.h> -#include <gst/gst-i18n-plugin.h> - -#include "play.h" - -#define TICK_INTERVAL_MSEC 200 - -GST_DEBUG_CATEGORY_STATIC (play_debug); -#define GST_CAT_DEFAULT play_debug - -enum -{ - TIME_TICK, - STREAM_LENGTH, - HAVE_VIDEO_SIZE, - LAST_SIGNAL -}; - -struct _GstPlayPrivate -{ - /* progress indicators */ - guint64 time_nanos; - guint64 length_nanos; - gint get_length_attempt; - guint tick_id; - - /* playbin object */ - GstElement *playbin; - - /* visualization */ - gboolean enable_vis; - GstElement *vis_element; - - /* location */ - char *location; -}; - -static guint gst_play_signals[LAST_SIGNAL] = { 0 }; - -static GstPipelineClass *parent_class = NULL; - -/* ======================================================= */ -/* */ -/* Private Methods */ -/* */ -/* ======================================================= */ - -static void -caps_set (GstPad * pad, GParamSpec * pspec, GstPlay * play) -{ - const GstCaps *caps = GST_PAD_CAPS (pad); - GstStructure *s = gst_caps_get_structure (caps, 0); - - if (s) { - const GValue *par; - gint w, h; - - /* get effective size */ - gst_structure_get_int (s, "width", &w); - gst_structure_get_int (s, "height", &h); - if ((par = gst_structure_get_value (s, "pixel-aspect-ratio"))) { - gint num = gst_value_get_fraction_numerator (par), - den = gst_value_get_fraction_denominator (par); - - if (num > den) - w *= (gfloat) num / den; - else - h *= (gfloat) den / num; - } - - g_signal_emit (play, gst_play_signals[HAVE_VIDEO_SIZE], 0, w, h); - g_signal_handlers_disconnect_by_func (pad, caps_set, play); - } -} - -static void -setup_size (GstPlay * play) -{ - const GList *streaminfo = NULL; - GstPad *pad = NULL; - - g_object_get (G_OBJECT (play->priv->playbin), - "stream-info", &streaminfo, NULL); - - for (; streaminfo != NULL; streaminfo = streaminfo->next) { - GObject *info = streaminfo->data; - gint type; - GParamSpec *pspec; - GEnumValue *val; - - g_object_get (info, "type", &type, NULL); - pspec = g_object_class_find_property (G_OBJECT_GET_CLASS (info), "type"); - val = g_enum_get_value (G_PARAM_SPEC_ENUM (pspec)->enum_class, type); - - if (g_strrstr (val->value_name, "VIDEO")) { - g_object_get (info, "object", &pad, NULL); - pad = (GstPad *) GST_PAD_REALIZE (pad); - break; - } - } - - if (pad) { - /* handle explicit caps as well - they're set later */ - if (GST_PAD_CAPS (pad)) - caps_set (pad, NULL, play); - else - g_signal_connect (pad, "notify::caps", G_CALLBACK (caps_set), play); - } -} - -static gboolean -gst_play_tick_callback (GstPlay * play) -{ - GstFormat fmt = GST_FORMAT_TIME; - gint64 value; - - /* check length/pos of stream */ - if (!GST_CLOCK_TIME_IS_VALID (play->priv->length_nanos) && - play->priv->get_length_attempt < 16) { - if (gst_element_query (GST_ELEMENT (play->priv->playbin), - GST_QUERY_TOTAL, &fmt, &value)) { - play->priv->length_nanos = value; - g_signal_emit (G_OBJECT (play), gst_play_signals[STREAM_LENGTH], - 0, play->priv->length_nanos); - } - play->priv->get_length_attempt++; - } - if (gst_element_query (GST_ELEMENT (play->priv->playbin), - GST_QUERY_POSITION, &fmt, &value)) { - play->priv->time_nanos = value; - g_signal_emit (G_OBJECT (play), gst_play_signals[TIME_TICK], - 0, play->priv->time_nanos); - } - - return TRUE; -} - -/* - * Virtual function. - */ - -static void -gst_play_change_state (GstElement * element, - GstElementState old, GstElementState new, gpointer data) -{ - GstPlay *play = GST_PLAY (data); - gint t = (old << 8) | new; - - /* now set up tickers */ - switch (t) { - case GST_STATE_PAUSED_TO_PLAYING: - play->priv->tick_id = g_timeout_add (TICK_INTERVAL_MSEC, - (GSourceFunc) gst_play_tick_callback, play); - break; - case GST_STATE_PLAYING_TO_PAUSED: - if (play->priv->tick_id != 0) { - g_source_remove (play->priv->tick_id); - play->priv->tick_id = 0; - } - break; - case GST_STATE_PAUSED_TO_READY: - play->priv->length_nanos = GST_CLOCK_TIME_NONE; - play->priv->time_nanos = GST_CLOCK_TIME_NONE; - play->priv->get_length_attempt = 0; - break; - case GST_STATE_READY_TO_PAUSED: - setup_size (play); - break; - default: - break; - } -} - -/* =========================================== */ -/* */ -/* Init & Dispose & Class init */ -/* */ -/* =========================================== */ - -static void -gst_play_dispose (GObject * object) -{ - GstPlay *play = GST_PLAY (object); - - /* reset */ - gst_element_set_state (GST_ELEMENT (play), GST_STATE_NULL); - - /* no vis */ - if (play->priv->vis_element) { - gst_object_unref (GST_OBJECT (play->priv->vis_element)); - play->priv->vis_element = NULL; - } - - g_free (play->priv->location); - play->priv->location = NULL; - - /* parent will clean up the rest */ - G_OBJECT_CLASS (parent_class)->dispose (object); -} - -static void -gst_play_init (GstPlay * play) -{ - play->priv = g_new0 (GstPlayPrivate, 1); - - /* default */ - play->priv->length_nanos = GST_CLOCK_TIME_NONE; - play->priv->time_nanos = GST_CLOCK_TIME_NONE; - play->priv->tick_id = 0; - play->priv->get_length_attempt = 0; - - play->priv->enable_vis = FALSE; - play->priv->vis_element = NULL; - - play->priv->location = NULL; - - /* make playbin */ - play->priv->playbin = gst_element_factory_make ("playbin", "player"); - if (play->priv->playbin) { - gst_bin_add (GST_BIN (play), play->priv->playbin); - g_signal_connect (play->priv->playbin, "state-change", - G_CALLBACK (gst_play_change_state), play); - } -} - -static void -gst_play_class_init (GstPlayClass * klass) -{ - GObjectClass *gobject_class = G_OBJECT_CLASS (klass); - - parent_class = g_type_class_ref (GST_TYPE_PIPELINE); - - gobject_class->dispose = gst_play_dispose; - - gst_play_signals[TIME_TICK] = - g_signal_new ("time-tick", G_TYPE_FROM_CLASS (klass), G_SIGNAL_RUN_FIRST, - G_STRUCT_OFFSET (GstPlayClass, time_tick), NULL, NULL, - gst_marshal_VOID__INT64, G_TYPE_NONE, 1, G_TYPE_INT64); - gst_play_signals[STREAM_LENGTH] = - g_signal_new ("stream-length", G_TYPE_FROM_CLASS (klass), - G_SIGNAL_RUN_FIRST, - G_STRUCT_OFFSET (GstPlayClass, stream_length), NULL, NULL, - gst_marshal_VOID__INT64, G_TYPE_NONE, 1, G_TYPE_INT64); - gst_play_signals[HAVE_VIDEO_SIZE] = - g_signal_new ("have-video-size", G_TYPE_FROM_CLASS (klass), - G_SIGNAL_RUN_FIRST, - G_STRUCT_OFFSET (GstPlayClass, have_video_size), NULL, NULL, - gst_marshal_VOID__INT_INT, G_TYPE_NONE, 2, G_TYPE_INT, G_TYPE_INT); - - GST_DEBUG_CATEGORY_INIT (play_debug, "GST_PLAY", 0, "GStreamer Play library"); - - GST_DEBUG ("Play class initialized"); -} - -/* ======================================================= */ -/* */ -/* Public Methods */ -/* */ -/* ======================================================= */ - -/** - * gst_play_set_location: - * @play: a #GstPlay. - * @location: a const #char* indicating location to play - * - * Set location of @play to @location. - * - * Returns: TRUE if location was set successfully. - */ - -gboolean -gst_play_set_location (GstPlay * play, const char *location) -{ - char *uri; - - g_return_val_if_fail (play != NULL, FALSE); - g_return_val_if_fail (GST_IS_PLAY (play), FALSE); - g_return_val_if_fail (location != NULL, FALSE); - - /* cache */ - if (play->priv->location) - g_free (play->priv->location); - play->priv->location = g_strdup (location); - - /* get file */ - gst_element_set_state (play->priv->playbin, GST_STATE_READY); - if (strchr (location, ':')) - uri = g_strdup (location); - else if (location[0] == '/') - uri = g_strdup_printf ("file://%s", location); - else { - char cwd[256]; - - getcwd (cwd, 255); - uri = g_strdup_printf ("file://%s/%s", cwd, location); - } - g_object_set (play->priv->playbin, "uri", uri, NULL); - g_free (uri); - - /* open */ - if (gst_element_set_state (play->priv->playbin, - GST_STATE_PAUSED) != GST_STATE_SUCCESS) { - return FALSE; - } - - return TRUE; -} - -/** - * gst_play_get_location: - * @play: a #GstPlay. - * - * Get current location of @play. - * - * Returns: a #char* pointer to current location. - */ - -char * -gst_play_get_location (GstPlay * play) -{ - g_return_val_if_fail (play != NULL, NULL); - g_return_val_if_fail (GST_IS_PLAY (play), NULL); - - return g_strdup (play->priv->location); -} - -/** - * gst_play_seek_to_time: - * @play: a #GstPlay. - * @time_nanos: a #gint64 indicating a time position. - * - * Performs a seek on @play until @time_nanos. - */ - -/* - * FIXME: use GstClockTime for 0.9 - */ - -gboolean -gst_play_seek_to_time (GstPlay * play, gint64 time_nanos) -{ - return gst_element_seek (play->priv->playbin, - GST_SEEK_METHOD_SET | GST_SEEK_FLAG_FLUSH, time_nanos); -} - -/** - * gst_play_set_data_src: - * @play: a #GstPlay. - * @data_src: a #GstElement. - * - * Set @data_src as the source element of @play. - * - * Returns: TRUE if call succeeded. - */ - -gboolean -gst_play_set_data_src (GstPlay * play, GstElement * data_src) -{ - /* deprecated - use URIs */ - return FALSE; -} - -/** - * gst_play_set_video_sink: - * @play: a #GstPlay. - * @video_sink: a #GstElement. - * - * Set @video_sink as the video sink element of @play. - * - * Returns: TRUE if call succeeded. - */ - -gboolean -gst_play_set_video_sink (GstPlay * play, GstElement * video_sink) -{ - g_object_set (G_OBJECT (play->priv->playbin), "video-sink", video_sink, NULL); - - return TRUE; -} - -/** - * gst_play_set_audio_sink: - * @play: a #GstPlay. - * @audio_sink: a #GstElement. - * - * Set @audio_sink as the audio sink element of @play. - * - * Returns: TRUE if call succeeded. - */ - -gboolean -gst_play_set_audio_sink (GstPlay * play, GstElement * audio_sink) -{ - g_object_set (G_OBJECT (play->priv->playbin), "audio-sink", audio_sink, NULL); - - return TRUE; -} - -/** - * gst_play_set_visualization: - * @play: a #GstPlay. - * @element: a #GstElement. - * - * Set @video_sink as the video sink element of @play. - * - * Returns: TRUE if call succeeded. - */ - -gboolean -gst_play_set_visualization (GstPlay * play, GstElement * vis_element) -{ - /* unset old */ - if (play->priv->vis_element) { - gst_object_unref (GST_OBJECT (play->priv->vis_element)); - play->priv->vis_element = NULL; - } - - /* set new */ - if (vis_element) { - gst_object_ref (GST_OBJECT (vis_element)); - play->priv->vis_element = vis_element; - } - - /* use */ - if (play->priv->vis_element && play->priv->enable_vis) { - g_object_set (G_OBJECT (play->priv->playbin), - "vis-plugin", vis_element, NULL); - } else { - g_object_set (G_OBJECT (play->priv->playbin), "vis-plugin", NULL, NULL); - } - - return TRUE; -} - -/** - * gst_play_connect_visualization: - * @play: a #GstPlay. - * @connect: a #gboolean indicating wether or not - * visualization should be connected. - * - * Connect or disconnect visualization bin in @play. - * - * Returns: TRUE if call succeeded. - */ - -gboolean -gst_play_connect_visualization (GstPlay * play, gboolean connect) -{ - play->priv->enable_vis = connect; - - /* use */ - if (play->priv->vis_element && play->priv->enable_vis) { - g_object_set (G_OBJECT (play->priv->playbin), - "vis-plugin", play->priv->vis_element, NULL); - } else { - g_object_set (G_OBJECT (play->priv->playbin), "vis-plugin", NULL, NULL); - } - - return TRUE; -} - -/** - * gst_play_get_framerate: - * @play: a #GstPlay. - * - * Get the video framerate from @play. - * - * Returns: a #gdouble indicating video framerate in frame per second. - */ - -gdouble -gst_play_get_framerate (GstPlay * play) -{ - const GList *streaminfo = NULL; - const GstStructure *str = NULL; - gdouble value; - - g_object_get (G_OBJECT (play->priv->playbin), - "stream-info", &streaminfo, NULL); - - for (; streaminfo != NULL; streaminfo = streaminfo->next) { - GObject *info = streaminfo->data; - gint type; - GParamSpec *pspec; - GEnumValue *val; - - g_object_get (info, "type", &type, NULL); - pspec = g_object_class_find_property (G_OBJECT_GET_CLASS (info), "type"); - val = g_enum_get_value (G_PARAM_SPEC_ENUM (pspec)->enum_class, type); - - if (strstr (val->value_name, "VIDEO")) { - const GstCaps *caps = NULL; - GstPad *pad = NULL; - - g_object_get (info, "object", &pad, NULL); - g_assert (GST_IS_PAD (pad)); - pad = (GstPad *) GST_PAD_REALIZE (pad); - caps = GST_PAD_CAPS (pad); - str = gst_caps_get_structure (caps, 0); - break; - } - } - - if (!str) - return 0.; - - gst_structure_get_double (str, "framerate", &value); - - return value; -} - -/** - * gst_play_get_sink_element: - * @play: a #GstPlay. - * @element: a #GstElement. - * @sink_type: a #GstPlaySinkType. - * - * Searches recursively for a sink #GstElement with - * type @sink_type in @element which is supposed to be a #GstBin. - * - * Returns: the sink #GstElement of @element. - */ - -/* - * (Ronald) what is this? - */ - -GstElement * -gst_play_get_sink_element (GstPlay * play, - GstElement * element, GstPlaySinkType sink_type) -{ - GList *elements = NULL; - const GList *pads = NULL; - gboolean has_src, has_correct_type; - - g_return_val_if_fail (GST_IS_PLAY (play), NULL); - g_return_val_if_fail (GST_IS_ELEMENT (element), NULL); - - GST_DEBUG_OBJECT (play, "looking for sink element in %s", - GST_ELEMENT_NAME (element)); - - if (!GST_IS_BIN (element)) { - /* since its not a bin, we'll assume this - * element is a sink element */ - GST_DEBUG_OBJECT (play, "not a bin, returning %s as sink element", - GST_ELEMENT_NAME (element)); - return element; - } - - elements = (GList *) gst_bin_get_list (GST_BIN (element)); - - /* traverse all elements looking for one without src pad */ - - while (elements) { - element = GST_ELEMENT (elements->data); - GST_DEBUG_OBJECT (play, "looking at element %s", - GST_ELEMENT_NAME (element)); - - /* Recursivity :) */ - - if (GST_IS_BIN (element)) { - element = gst_play_get_sink_element (play, element, sink_type); - if (GST_IS_ELEMENT (element)) - return element; - } else { - pads = gst_element_get_pad_list (element); - has_src = FALSE; - has_correct_type = FALSE; - while (pads) { - /* check for src pad */ - if (GST_PAD_DIRECTION (GST_PAD (pads->data)) == GST_PAD_SRC) { - GST_DEBUG_OBJECT (play, "element %s has a src pad", - GST_ELEMENT_NAME (element)); - has_src = TRUE; - break; - } else { - /* If not a src pad checking caps */ - GstPad *pad; - GstCaps *caps; - GstStructure *structure; - int i; - gboolean has_video_cap = FALSE; - gboolean has_audio_cap = FALSE; - - pad = GST_PAD (pads->data); - caps = gst_pad_get_caps (pad); - /* loop over all caps members to find mime types */ - for (i = 0; i < gst_caps_get_size (caps); ++i) { - structure = gst_caps_get_structure (caps, i); - - GST_DEBUG_OBJECT (play, - "looking at caps %d pad %s:%s on element %s with mime %s", i, - GST_DEBUG_PAD_NAME (pad), - GST_ELEMENT_NAME (element), gst_structure_get_name (structure)); - - if (strcmp (gst_structure_get_name (structure), - "audio/x-raw-int") == 0) { - has_audio_cap = TRUE; - } - - if (strcmp (gst_structure_get_name (structure), - "video/x-raw-yuv") == 0 || - strcmp (gst_structure_get_name (structure), - "video/x-raw-rgb") == 0) { - has_video_cap = TRUE; - } - } - - gst_caps_free (caps); - - switch (sink_type) { - case GST_PLAY_SINK_TYPE_AUDIO: - if (has_audio_cap) - has_correct_type = TRUE; - break; - case GST_PLAY_SINK_TYPE_VIDEO: - if (has_video_cap) - has_correct_type = TRUE; - break; - case GST_PLAY_SINK_TYPE_ANY: - if ((has_video_cap) || (has_audio_cap)) - has_correct_type = TRUE; - break; - default: - has_correct_type = FALSE; - } - } - - pads = g_list_next (pads); - - } - - if ((!has_src) && (has_correct_type)) { - GST_DEBUG_OBJECT (play, "found %s with src pad and correct type", - GST_ELEMENT_NAME (element)); - return element; - } - } - - elements = g_list_next (elements); - } - - /* we didn't find a sink element */ - - return NULL; -} - -/** - * gst_play_get_all_by_interface: - * @play: a #GstPlay. - * @interface: an interface. - * - * Returns all elements that are used by @play implementing the given interface. - * - * Returns: a #GList of #GstElement implementing the interface. - */ - -GList * -gst_play_get_all_by_interface (GstPlay * play, GType interface_type) -{ - GstElement *videosink = NULL, *audiosink = NULL; - GList *res = NULL; - - g_object_get (G_OBJECT (play->priv->playbin), - "video-sink", &videosink, "audio-sink", &audiosink, NULL); - - /* ehw... */ - if (videosink && GST_IS_BIN (videosink)) { - res = gst_bin_get_all_by_interface (GST_BIN (videosink), interface_type); - } - if (!res && audiosink && GST_IS_BIN (audiosink)) { - res = gst_bin_get_all_by_interface (GST_BIN (audiosink), interface_type); - } - - return res; -} - -/** - * gst_play_new: - * @error: a pointer to a #GError, which will be filled in on error. - * - * Creates a new GstPlay object. - * - * Returns: a newly created #GstPlay, or NULL on error (the #GError - * will be set accordingly). - */ - -GstPlay * -gst_play_new (GError ** error) -{ - GstPlay *play = g_object_new (GST_TYPE_PLAY, NULL); - - if (!play->priv->playbin) { - g_set_error (error, 0, 0, _("Failed to create playbin object")); - g_object_unref (G_OBJECT (play)); - - return NULL; - } - - return play; -} - -/* =========================================== */ -/* */ -/* Object typing & Creation */ -/* */ -/* =========================================== */ - -GType -gst_play_get_type (void) -{ - static GType play_type = 0; - - if (!play_type) { - static const GTypeInfo play_info = { - sizeof (GstPlayClass), - NULL, - NULL, - (GClassInitFunc) gst_play_class_init, - NULL, - NULL, - sizeof (GstPlay), - 0, - (GInstanceInitFunc) gst_play_init, - NULL - }; - - play_type = g_type_register_static (GST_TYPE_PIPELINE, "GstPlay", - &play_info, 0); - } - - return play_type; -} |