2 * Copyright (C) 2011 Wim Taymans <wim.taymans@gmail.com>
4 * gstsample.c: media sample
6 * This library is free software; you can redistribute it and/or
7 * modify it under the terms of the GNU Library General Public
8 * License as published by the Free Software Foundation; either
9 * version 2 of the License, or (at your option) any later version.
11 * This library is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
14 * Library General Public License for more details.
16 * You should have received a copy of the GNU Library General Public
17 * License along with this library; if not, write to the
18 * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
19 * Boston, MA 02111-1307, USA.
24 * @short_description: A media sample
25 * @see_also: #GstBuffer, #GstCaps, #GstSegment
27 * A #GstSample is a small object containing data, a type, timing and
28 * extra arbitrary information.
30 #include "gst_private.h"
32 #include "gstsample.h"
40 GstMiniObject mini_object;
48 GType _gst_sample_type = 0;
50 GST_DEFINE_MINI_OBJECT_TYPE (GstSample, gst_sample);
53 _priv_gst_sample_initialize (void)
55 _gst_sample_type = gst_sample_get_type ();
59 _gst_sample_copy (GstSample * sample)
63 copy = gst_sample_new (sample->buffer, sample->caps, &sample->segment,
64 gst_structure_copy (sample->info));
70 _gst_sample_free (GstSample * sample)
72 GST_LOG ("free %p", sample);
75 gst_buffer_unref (sample->buffer);
77 gst_caps_unref (sample->caps);
79 g_slice_free1 (GST_MINI_OBJECT_SIZE (sample), sample);
84 * @buffer: a #GstBuffer
86 * @segment: a #GstSegment
87 * @info: a #GstStructure
89 * Create a new #GstSample with the provided details.
91 * Free-function: gst_sample_unref
93 * Returns: (transfer full): the new #GstSample. gst_sample_unref()
99 gst_sample_new (GstBuffer * buffer, GstCaps * caps, const GstSegment * segment,
104 sample = g_slice_new0 (GstSample);
106 GST_LOG ("new %p", sample);
108 gst_mini_object_init (GST_MINI_OBJECT_CAST (sample), _gst_sample_type,
111 sample->mini_object.copy = (GstMiniObjectCopyFunction) _gst_sample_copy;
112 sample->mini_object.free = (GstMiniObjectFreeFunction) _gst_sample_free;
114 sample->buffer = buffer ? gst_buffer_ref (buffer) : NULL;
115 sample->caps = caps ? gst_caps_ref (caps) : NULL;
118 gst_segment_copy_into (segment, &sample->segment);
120 gst_segment_init (&sample->segment, GST_FORMAT_TIME);
123 if (!gst_structure_set_parent_refcount (info,
124 &sample->mini_object.refcount))
134 gst_sample_unref (sample);
135 g_warning ("structure is already owned by another object");
141 * gst_sample_get_buffer:
142 * @sample: a #GstSample
144 * Get the buffer associated with @sample
146 * Returns: (transfer none): the buffer of @sample or NULL when there
147 * is no buffer. The buffer remains valid as long as @sample is valid.
150 gst_sample_get_buffer (GstSample * sample)
152 g_return_val_if_fail (GST_IS_SAMPLE (sample), NULL);
154 return sample->buffer;
158 * gst_sample_get_caps:
159 * @sample: a #GstSample
161 * Get the caps associated with @sample
163 * Returns: (transfer none): the caps of @sample or NULL when there
164 * is no caps. The caps remain valid as long as @sample is valid.
167 gst_sample_get_caps (GstSample * sample)
169 g_return_val_if_fail (GST_IS_SAMPLE (sample), NULL);
175 * gst_sample_get_segment:
176 * @sample: a #GstSample
178 * Get the segment associated with @sample
180 * Returns: (transfer none): the segment of @sample.
181 * The segment remains valid as long as @sample is valid.
184 gst_sample_get_segment (GstSample * sample)
186 g_return_val_if_fail (GST_IS_SAMPLE (sample), NULL);
188 return &sample->segment;
192 * gst_sample_get_info:
193 * @sample: a #GstSample
195 * Get extra information associated with @sample.
197 * Returns: (transfer none): the extra info of @sample.
198 * The info remains valid as long as @sample is valid.
201 gst_sample_get_info (GstSample * sample)
203 g_return_val_if_fail (GST_IS_SAMPLE (sample), NULL);