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d196b0b904
And make use of that in the typefind element to also be able to make use of the extension in push mode. It previously only did that in pull mode and this potentially speeds up typefinding and might also prevent false positives. https://bugzilla.gnome.org/show_bug.cgi?id=796865
97 lines
4.3 KiB
C
97 lines
4.3 KiB
C
/* GStreamer
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* Copyright (C) 1999,2000 Erik Walthinsen <omega@cse.ogi.edu>
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* Copyright (C) 2000,2005 Wim Taymans <wim@fluendo.com>
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* Copyright (C) 2006 Tim-Philipp Müller <tim centricular net>
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*
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* gsttypefindhelper.h:
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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., 51 Franklin St, Fifth Floor,
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* Boston, MA 02110-1301, USA.
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*/
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#ifndef __GST_TYPEFINDHELPER_H__
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#define __GST_TYPEFINDHELPER_H__
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#include <gst/gst.h>
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#include <gst/base/base-prelude.h>
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G_BEGIN_DECLS
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GST_BASE_API
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GstCaps * gst_type_find_helper (GstPad *src, guint64 size);
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GST_BASE_API
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GstCaps * gst_type_find_helper_for_data (GstObject *obj,
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const guint8 *data,
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gsize size,
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GstTypeFindProbability *prob);
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GST_BASE_API
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GstCaps * gst_type_find_helper_for_data_with_extension (GstObject *obj,
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const guint8 *data,
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gsize size,
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const gchar *extension,
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GstTypeFindProbability *prob);
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GST_BASE_API
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GstCaps * gst_type_find_helper_for_buffer (GstObject *obj,
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GstBuffer *buf,
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GstTypeFindProbability *prob);
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GST_BASE_API
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GstCaps * gst_type_find_helper_for_buffer_with_extension (GstObject *obj,
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GstBuffer *buf,
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const gchar *extension,
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GstTypeFindProbability *prob);
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GST_BASE_API
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GstCaps * gst_type_find_helper_for_extension (GstObject * obj,
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const gchar * extension);
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/**
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* GstTypeFindHelperGetRangeFunction:
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* @obj: a #GstObject that will handle the getrange request
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* @parent: (allow-none): the parent of @obj or %NULL
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* @offset: the offset of the range
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* @length: the length of the range
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* @buffer: (out): a memory location to hold the result buffer
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*
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* This function will be called by gst_type_find_helper_get_range() when
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* typefinding functions request to peek at the data of a stream at certain
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* offsets. If this function returns GST_FLOW_OK, the result buffer will be
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* stored in @buffer. The contents of @buffer is invalid for any other
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* return value.
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*
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* This function is supposed to behave exactly like a #GstPadGetRangeFunction.
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*
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* Returns: GST_FLOW_OK for success
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*/
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typedef GstFlowReturn (*GstTypeFindHelperGetRangeFunction) (GstObject *obj,
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GstObject *parent,
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guint64 offset,
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guint length,
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GstBuffer **buffer);
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GST_BASE_API
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GstCaps * gst_type_find_helper_get_range (GstObject *obj,
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GstObject *parent,
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GstTypeFindHelperGetRangeFunction func,
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guint64 size,
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const gchar *extension,
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GstTypeFindProbability *prob);
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G_END_DECLS
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#endif /* __GST_TYPEFINDHELPER_H__ */
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