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f2cf753b17
Original commit message from CVS: 2005-06-27 Andy Wingo <wingo@pobox.com> * gst/base/gsttypefindhelper.c (gst_type_find_helper): Unref any remaining buffer. * gst/gsttrace.c (gst_alloc_trace_list_sorted): New helper, returns a sorted copy of the trace list. (gst_alloc_trace_print_live): New API, only prints traces with live objects. Sort the list. (gst_alloc_trace_print_all): Sort the list. (gst_alloc_trace_print): Align columns. * gst/elements/gstttypefindelement.c: * gst/elements/gsttee.c: * gst/base/gstbasesrc.c: * gst/base/gstbasesink.c: * gst/base/gstbasetransform.c: * gst/gstqueue.c: Adapt for pad activation changes. * gst/gstpipeline.c (gst_pipeline_init): Unref after parenting sched. (gst_pipeline_dispose): Drop ref on sched. * gst/gstpad.c (gst_pad_init): Set the default activate func. (gst_pad_activate_default): Push mode by default. (pre_activate_switch, post_activate_switch): New stubs, things to do before and after switching activation modes on pads. (gst_pad_set_active): Take a boolean and not a mode, dispatch to the pad's activate function to choose which mode to activate. Shortcut on deactivation and call the right function directly. (gst_pad_activate_pull): New API, (de)activates a pad in pull mode. (gst_pad_activate_push): New API, same for push mode. (gst_pad_set_activate_function) (gst_pad_set_activatepull_function) (gst_pad_set_activatepush_function): Setters for new API. * gst/gstminiobject.c (gst_mini_object_new, gst_mini_object_free): Trace all miniobjects. (gst_mini_object_make_writable): Unref the arg if we copy, like gst_caps_make_writable. * gst/gstmessage.c (_gst_message_initialize): No trace init. * gst/gstghostpad.c (gst_proxy_pad_do_activate) (gst_proxy_pad_do_activatepull, gst_proxy_pad_do_activatepush): Adapt for new pad API. * gst/gstevent.c (_gst_event_initialize): Don't initialize trace. * gst/gstelement.h: * gst/gstelement.c (gst_element_iterate_src_pads) (gst_element_iterate_sink_pads): New API functions. * gst/gstelement.c (iterator_fold_with_resync): New utility, should fold into gstiterator.c in some form. (gst_element_pads_activate): Simplified via use of fold and delegation of decisions to gstpad->activate. * gst/gstbus.c (gst_bus_source_finalize): Set the bus to NULL, help in debugging. * gst/gstbuffer.c (_gst_buffer_initialize): Ref the buffer type class once in init, like gstmessage. Didn't run into this issue but it seems correct. Don't initialize a trace, gstminiobject does that. * check/pipelines/simple_launch_lines.c (test_stop_from_app): New test, runs fakesrc ! fakesink, stopping on ::handoff via a message to the bus. (assert_live_count): New util function, uses alloc traces to check cleanup. * check/gst/gstghostpad.c (test_ghost_pads): More refcount checks. To be modified when unlink drops the internal pad.
137 lines
3 KiB
C
137 lines
3 KiB
C
/* GStreamer
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* Copyright (C) 1999,2000 Erik Walthinsen <omega@cse.ogi.edu>
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* 2000,2005 Wim Taymans <wim@fluendo.com>
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*
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* gsttypefindhelper.c:
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Library General Public
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* License as published by the Free Software Foundation; either
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* version 2 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Library General Public License for more details.
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*
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* You should have received a copy of the GNU Library General Public
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* License along with this library; if not, write to the
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* Free Software Foundation, Inc., 59 Temple Place - Suite 330,
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* Boston, MA 02111-1307, USA.
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*/
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#include <stdlib.h>
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#include <string.h>
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#ifdef HAVE_CONFIG_H
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# include "config.h"
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#endif
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#include "gsttypefindhelper.h"
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/**
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* typefind code here
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*/
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typedef struct
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{
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GstPad *src;
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guint best_probability;
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GstCaps *caps;
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guint64 size;
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GstBuffer *buffer;
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}
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GstTypeFindHelper;
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static guint8 *
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helper_find_peek (gpointer data, gint64 offset, guint size)
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{
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GstTypeFindHelper *find;
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GstBuffer *buffer;
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GstPad *src;
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GstFlowReturn ret;
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if (size == 0)
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return NULL;
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find = (GstTypeFindHelper *) data;
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src = find->src;
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if (offset < 0) {
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if (find->size == -1 || find->size < -offset)
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return NULL;
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offset += find->size;
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}
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buffer = NULL;
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ret = GST_PAD_GETRANGEFUNC (src) (src, offset, size, &buffer);
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if (find->buffer) {
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gst_buffer_unref (find->buffer);
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find->buffer = NULL;
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}
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if (ret != GST_FLOW_OK)
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goto error;
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find->buffer = buffer;
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return GST_BUFFER_DATA (buffer);
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error:
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{
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return NULL;
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}
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}
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static void
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helper_find_suggest (gpointer data, guint probability, const GstCaps * caps)
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{
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GstTypeFindHelper *find = (GstTypeFindHelper *) data;
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if (probability > find->best_probability) {
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GstCaps *copy = gst_caps_copy (caps);
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gst_caps_replace (&find->caps, copy);
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gst_caps_unref (copy);
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find->best_probability = probability;
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}
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}
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GstCaps *
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gst_type_find_helper (GstPad * src, guint64 size)
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{
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GstTypeFind gst_find;
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GstTypeFindHelper find;
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GList *walk, *type_list = NULL;
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GstCaps *result = NULL;
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walk = type_list = gst_type_find_factory_get_list ();
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find.src = src;
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find.best_probability = 0;
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find.caps = NULL;
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find.size = size;
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find.buffer = NULL;
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gst_find.data = &find;
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gst_find.peek = helper_find_peek;
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gst_find.suggest = helper_find_suggest;
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gst_find.get_length = NULL;
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while (walk) {
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GstTypeFindFactory *factory = GST_TYPE_FIND_FACTORY (walk->data);
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gst_type_find_factory_call_function (factory, &gst_find);
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if (find.best_probability >= GST_TYPE_FIND_MAXIMUM)
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break;
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walk = g_list_next (walk);
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}
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if (find.best_probability > 0)
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result = find.caps;
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if (find.buffer)
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gst_buffer_unref (find.buffer);
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return result;
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}
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