mirror of
https://gitlab.freedesktop.org/gstreamer/gstreamer.git
synced 2024-12-11 02:46:33 +00:00
54fd50bfe1
Add an index to gst_buffer_take_memory() so that we can also insert memory at a certain offset. This is mostly interesting to prepend a header memory block to the buffer.
463 lines
15 KiB
C
463 lines
15 KiB
C
/* GStreamer
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*
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* unit test for GstBuffer
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*
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* Copyright (C) <2005> Thomas Vander Stichele <thomas at apestaart dot org>
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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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#ifdef HAVE_CONFIG_H
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# include "config.h"
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#endif
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#ifdef HAVE_VALGRIND_H
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# include <valgrind/valgrind.h>
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#else
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# define RUNNING_ON_VALGRIND FALSE
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#endif
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#include <gst/check/gstcheck.h>
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GST_START_TEST (test_subbuffer)
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{
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GstBuffer *buffer, *sub;
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gsize size, maxsize, ssize;
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guint8 *data, *sdata;
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buffer = gst_buffer_new_and_alloc (4);
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/* check sizes, buffer starts out empty */
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data = gst_buffer_map (buffer, &size, &maxsize, GST_MAP_WRITE);
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fail_unless (size == 4, "buffer has wrong size");
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fail_unless (maxsize >= 4, "buffer has wrong size");
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memset (data, 0, 4);
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gst_buffer_unmap (buffer, data, 4);
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data = gst_buffer_map (buffer, &size, NULL, GST_MAP_READ);
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/* set some metadata */
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GST_BUFFER_TIMESTAMP (buffer) = 1;
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GST_BUFFER_DURATION (buffer) = 2;
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GST_BUFFER_OFFSET (buffer) = 3;
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GST_BUFFER_OFFSET_END (buffer) = 4;
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sub = gst_buffer_copy_region (buffer, GST_BUFFER_COPY_ALL, 1, 2);
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fail_if (sub == NULL, "copy region of buffer returned NULL");
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sdata = gst_buffer_map (sub, &ssize, NULL, GST_MAP_READ);
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fail_unless (ssize == 2, "subbuffer has wrong size");
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fail_unless (memcmp (data + 1, sdata, 2) == 0,
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"subbuffer contains the wrong data");
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ASSERT_BUFFER_REFCOUNT (sub, "subbuffer", 1);
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fail_unless (GST_BUFFER_TIMESTAMP (sub) == -1,
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"subbuffer has wrong timestamp");
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fail_unless (GST_BUFFER_DURATION (sub) == -1, "subbuffer has wrong duration");
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fail_unless (GST_BUFFER_OFFSET (sub) == -1, "subbuffer has wrong offset");
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fail_unless (GST_BUFFER_OFFSET_END (sub) == -1,
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"subbuffer has wrong offset end");
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gst_buffer_unmap (sub, sdata, ssize);
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gst_buffer_unref (sub);
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/* create a subbuffer of size 0 */
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sub = gst_buffer_copy_region (buffer, GST_BUFFER_COPY_ALL, 1, 0);
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fail_if (sub == NULL, "copy_region of buffer returned NULL");
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sdata = gst_buffer_map (sub, &ssize, NULL, GST_MAP_READ);
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fail_unless (ssize == 0, "subbuffer has wrong size");
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fail_unless (memcmp (data + 1, sdata, 0) == 0,
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"subbuffer contains the wrong data");
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ASSERT_BUFFER_REFCOUNT (sub, "subbuffer", 1);
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gst_buffer_unmap (sub, sdata, ssize);
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gst_buffer_unref (sub);
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/* test if metadata is coppied, not a complete buffer copy so only the
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* timestamp and offset fields are copied. */
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sub = gst_buffer_copy_region (buffer, GST_BUFFER_COPY_ALL, 0, 1);
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fail_if (sub == NULL, "copy_region of buffer returned NULL");
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fail_unless (gst_buffer_get_size (sub) == 1, "subbuffer has wrong size");
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fail_unless (GST_BUFFER_TIMESTAMP (sub) == 1,
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"subbuffer has wrong timestamp");
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fail_unless (GST_BUFFER_OFFSET (sub) == 3, "subbuffer has wrong offset");
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fail_unless (GST_BUFFER_DURATION (sub) == -1, "subbuffer has wrong duration");
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fail_unless (GST_BUFFER_OFFSET_END (sub) == -1,
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"subbuffer has wrong offset end");
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gst_buffer_unref (sub);
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/* test if metadata is coppied, a complete buffer is copied so all the timing
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* fields should be copied. */
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sub = gst_buffer_copy_region (buffer, GST_BUFFER_COPY_ALL, 0, 4);
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fail_if (sub == NULL, "copy_region of buffer returned NULL");
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fail_unless (gst_buffer_get_size (sub) == 4, "subbuffer has wrong size");
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fail_unless (GST_BUFFER_TIMESTAMP (sub) == 1,
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"subbuffer has wrong timestamp");
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fail_unless (GST_BUFFER_DURATION (sub) == 2, "subbuffer has wrong duration");
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fail_unless (GST_BUFFER_OFFSET (sub) == 3, "subbuffer has wrong offset");
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fail_unless (GST_BUFFER_OFFSET_END (sub) == 4,
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"subbuffer has wrong offset end");
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/* clean up */
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gst_buffer_unref (sub);
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gst_buffer_unmap (buffer, data, size);
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gst_buffer_unref (buffer);
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}
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GST_END_TEST;
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GST_START_TEST (test_is_span_fast)
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{
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GstBuffer *buffer, *sub1, *sub2;
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buffer = gst_buffer_new_and_alloc (4);
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sub1 = gst_buffer_copy_region (buffer, GST_BUFFER_COPY_ALL, 0, 2);
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fail_if (sub1 == NULL, "copy_region of buffer returned NULL");
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sub2 = gst_buffer_copy_region (buffer, GST_BUFFER_COPY_ALL, 2, 2);
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fail_if (sub2 == NULL, "copy_region of buffer returned NULL");
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fail_if (gst_buffer_is_span_fast (buffer, sub2) == TRUE,
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"a parent buffer can't be span_fasted");
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fail_if (gst_buffer_is_span_fast (sub1, buffer) == TRUE,
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"a parent buffer can't be span_fasted");
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fail_if (gst_buffer_is_span_fast (sub1, sub2) == FALSE,
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"two subbuffers next to each other should be span_fast");
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/* clean up */
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gst_buffer_unref (sub1);
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gst_buffer_unref (sub2);
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gst_buffer_unref (buffer);
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}
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GST_END_TEST;
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GST_START_TEST (test_span)
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{
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GstBuffer *buffer, *sub1, *sub2, *span;
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guint8 *data;
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gsize size;
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buffer = gst_buffer_new_and_alloc (4);
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data = gst_buffer_map (buffer, &size, NULL, GST_MAP_WRITE);
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memcpy (data, "data", 4);
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gst_buffer_unmap (buffer, data, 4);
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ASSERT_CRITICAL (gst_buffer_span (NULL, 1, NULL, 2));
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ASSERT_CRITICAL (gst_buffer_span (buffer, 1, NULL, 2));
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ASSERT_CRITICAL (gst_buffer_span (NULL, 1, buffer, 2));
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ASSERT_CRITICAL (gst_buffer_span (buffer, 0, buffer, 10));
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sub1 = gst_buffer_copy_region (buffer, GST_BUFFER_COPY_ALL, 0, 2);
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fail_if (sub1 == NULL, "copy_region of buffer returned NULL");
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sub2 = gst_buffer_copy_region (buffer, GST_BUFFER_COPY_ALL, 2, 2);
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fail_if (sub2 == NULL, "copy_region of buffer returned NULL");
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ASSERT_BUFFER_REFCOUNT (buffer, "parent", 1);
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ASSERT_BUFFER_REFCOUNT (sub1, "sub1", 1);
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ASSERT_BUFFER_REFCOUNT (sub2, "sub2", 1);
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/* span will create a new subbuffer from the parent */
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span = gst_buffer_span (sub1, 0, sub2, 4);
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data = gst_buffer_map (span, &size, NULL, GST_MAP_READ);
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fail_unless (size == 4, "spanned buffer is wrong size");
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ASSERT_BUFFER_REFCOUNT (buffer, "parent", 1);
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ASSERT_BUFFER_REFCOUNT (sub1, "sub1", 1);
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ASSERT_BUFFER_REFCOUNT (sub2, "sub2", 1);
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ASSERT_BUFFER_REFCOUNT (span, "span", 1);
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fail_unless (memcmp (data, "data", 4) == 0,
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"spanned buffer contains the wrong data");
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gst_buffer_unmap (span, data, size);
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gst_buffer_unref (span);
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ASSERT_BUFFER_REFCOUNT (buffer, "parent", 1);
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/* span from non-contiguous buffers will create new buffers */
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span = gst_buffer_span (sub2, 0, sub1, 4);
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data = gst_buffer_map (span, &size, NULL, GST_MAP_READ);
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fail_unless (size == 4, "spanned buffer is wrong size");
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ASSERT_BUFFER_REFCOUNT (buffer, "parent", 1);
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ASSERT_BUFFER_REFCOUNT (sub1, "sub1", 1);
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ASSERT_BUFFER_REFCOUNT (sub2, "sub2", 1);
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ASSERT_BUFFER_REFCOUNT (span, "span", 1);
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fail_unless (memcmp (data, "tada", 4) == 0,
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"spanned buffer contains the wrong data");
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gst_buffer_unmap (span, data, size);
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gst_buffer_unref (span);
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ASSERT_BUFFER_REFCOUNT (buffer, "parent", 1);
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/* span with different sizes */
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span = gst_buffer_span (sub1, 1, sub2, 3);
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data = gst_buffer_map (span, &size, NULL, GST_MAP_READ);
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fail_unless (size == 3, "spanned buffer is wrong size");
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ASSERT_BUFFER_REFCOUNT (buffer, "parent", 1);
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ASSERT_BUFFER_REFCOUNT (sub1, "sub1", 1);
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ASSERT_BUFFER_REFCOUNT (sub2, "sub2", 1);
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ASSERT_BUFFER_REFCOUNT (span, "span", 1);
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fail_unless (memcmp (data, "ata", 3) == 0,
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"spanned buffer contains the wrong data");
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gst_buffer_unmap (span, data, size);
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gst_buffer_unref (span);
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ASSERT_BUFFER_REFCOUNT (buffer, "parent", 1);
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span = gst_buffer_span (sub2, 0, sub1, 3);
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data = gst_buffer_map (span, &size, NULL, GST_MAP_READ);
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fail_unless (size == 3, "spanned buffer is wrong size");
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ASSERT_BUFFER_REFCOUNT (buffer, "parent", 1);
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ASSERT_BUFFER_REFCOUNT (sub1, "sub1", 1);
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ASSERT_BUFFER_REFCOUNT (sub2, "sub2", 1);
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ASSERT_BUFFER_REFCOUNT (span, "span", 1);
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fail_unless (memcmp (data, "tad", 3) == 0,
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"spanned buffer contains the wrong data");
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gst_buffer_unmap (span, data, size);
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gst_buffer_unref (span);
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ASSERT_BUFFER_REFCOUNT (buffer, "parent", 1);
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/* clean up */
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gst_buffer_unref (sub1);
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gst_buffer_unref (sub2);
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gst_buffer_unref (buffer);
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}
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GST_END_TEST;
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static const char ro_memory[] = "abcdefghijklmnopqrstuvwxyz";
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static GstBuffer *
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create_read_only_buffer (void)
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{
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GstBuffer *buf;
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buf = gst_buffer_new ();
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/* assign some read-only data to the new buffer */
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gst_buffer_take_memory (buf, -1,
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gst_memory_new_wrapped (GST_MEMORY_FLAG_READONLY,
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(gpointer) ro_memory, NULL,
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sizeof (ro_memory), 0, sizeof (ro_memory)));
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return buf;
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}
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GST_START_TEST (test_make_writable)
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{
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GstBuffer *buf, *buf2;
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guint8 *data;
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gsize size;
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/* create read-only buffer and make it writable */
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buf = create_read_only_buffer ();
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data = gst_buffer_map (buf, &size, NULL, GST_MAP_WRITE);
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data[4] = 'a';
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gst_buffer_unmap (buf, data, size);
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gst_buffer_unref (buf);
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/* alloc'ed buffer with refcount 1 should be writable */
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buf = gst_buffer_new_and_alloc (32);
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buf2 = gst_buffer_make_writable (buf);
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fail_unless (buf == buf2,
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"_make_writable() should have returned same buffer");
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gst_buffer_unref (buf2);
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/* alloc'ed buffer with refcount >1 should be copied */
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buf = gst_buffer_new_and_alloc (32);
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gst_buffer_ref (buf);
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buf2 = gst_buffer_make_writable (buf);
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fail_unless (buf != buf2, "_make_writable() should have returned a copy!");
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gst_buffer_unref (buf2);
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gst_buffer_unref (buf);
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}
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GST_END_TEST;
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GST_START_TEST (test_subbuffer_make_writable)
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{
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GstBuffer *buf, *sub_buf;
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guint8 *data;
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gsize size;
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/* create sub-buffer of read-only buffer and make it writable */
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buf = create_read_only_buffer ();
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sub_buf = gst_buffer_copy_region (buf, GST_BUFFER_COPY_ALL, 0, 8);
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data = gst_buffer_map (sub_buf, &size, NULL, GST_MAP_WRITE);
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fail_if (data == NULL);
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data[4] = 'a';
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gst_buffer_unmap (sub_buf, data, size);
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gst_buffer_unref (sub_buf);
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gst_buffer_unref (buf);
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}
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GST_END_TEST;
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GST_START_TEST (test_metadata_writable)
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{
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GstBuffer *buffer, *sub1;
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buffer = gst_buffer_new_and_alloc (4);
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GST_BUFFER_FLAG_SET (buffer, GST_BUFFER_FLAG_DISCONT);
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GST_BUFFER_FLAG_SET (buffer, GST_BUFFER_FLAG_DELTA_UNIT);
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/* Buffer with refcount 1 should have writable metadata */
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fail_unless (gst_buffer_is_writable (buffer) == TRUE);
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/* Check that a buffer with refcount 2 does not have writable metadata */
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gst_buffer_ref (buffer);
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ASSERT_BUFFER_REFCOUNT (buffer, "buffer", 2);
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fail_unless (gst_buffer_is_writable (buffer) == FALSE);
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/* Check that make_metadata_writable produces a new sub-buffer with
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* writable metadata. */
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sub1 = gst_buffer_make_writable (buffer);
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fail_if (sub1 == buffer);
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fail_unless (gst_buffer_is_writable (sub1) == TRUE);
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/* Check that make_metadata_writable() maintains the buffer flags */
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fail_unless (GST_BUFFER_FLAG_IS_SET (sub1, GST_BUFFER_FLAG_DISCONT));
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fail_unless (GST_BUFFER_FLAG_IS_SET (sub1, GST_BUFFER_FLAG_DELTA_UNIT));
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/* Unset flags on writable buffer, then make sure they're still
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* set on the original buffer */
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GST_BUFFER_FLAG_UNSET (sub1, GST_BUFFER_FLAG_DISCONT);
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GST_BUFFER_FLAG_UNSET (sub1, GST_BUFFER_FLAG_DELTA_UNIT);
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fail_unless (GST_BUFFER_FLAG_IS_SET (buffer, GST_BUFFER_FLAG_DISCONT));
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fail_unless (GST_BUFFER_FLAG_IS_SET (buffer, GST_BUFFER_FLAG_DELTA_UNIT));
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/* Drop the subbuffer and check that the metadata is now writable again */
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ASSERT_BUFFER_REFCOUNT (sub1, "sub1", 1);
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gst_buffer_unref (sub1);
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fail_unless (gst_buffer_is_writable (buffer) == TRUE);
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ASSERT_BUFFER_REFCOUNT (buffer, "buffer", 1);
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gst_buffer_unref (buffer);
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}
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GST_END_TEST;
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GST_START_TEST (test_copy)
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{
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GstBuffer *buffer, *copy;
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gsize size, ssize;
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guint8 *data, *sdata;
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buffer = gst_buffer_new_and_alloc (4);
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ASSERT_BUFFER_REFCOUNT (buffer, "buffer", 1);
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copy = gst_buffer_copy (buffer);
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ASSERT_BUFFER_REFCOUNT (buffer, "buffer", 1);
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ASSERT_BUFFER_REFCOUNT (copy, "copy", 1);
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/* buffers are copied and must point to different memory */
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fail_if (buffer == copy);
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data = gst_buffer_map (buffer, &size, NULL, GST_MAP_READ);
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sdata = gst_buffer_map (copy, &ssize, NULL, GST_MAP_READ);
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/* NOTE that data is refcounted */
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fail_unless (size == ssize);
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gst_buffer_unmap (copy, sdata, ssize);
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gst_buffer_unmap (buffer, data, size);
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gst_buffer_unref (copy);
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gst_buffer_unref (buffer);
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/* a 0-sized buffer has NULL data as per docs */
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buffer = gst_buffer_new_and_alloc (0);
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data = gst_buffer_map (buffer, &size, NULL, GST_MAP_READ);
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fail_unless (data == NULL);
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gst_buffer_unmap (buffer, data, size);
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/* copying a 0-sized buffer should not crash and also set
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* the data member NULL. */
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copy = gst_buffer_copy (buffer);
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data = gst_buffer_map (copy, &size, NULL, GST_MAP_READ);
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fail_unless (data == NULL);
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gst_buffer_unmap (copy, data, size);
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gst_buffer_unref (copy);
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gst_buffer_unref (buffer);
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}
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GST_END_TEST;
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GST_START_TEST (test_try_new_and_alloc)
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{
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GstBuffer *buf;
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gsize size;
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guint8 *data;
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/* special case: alloc of 0 bytes results in new buffer with NULL data */
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buf = gst_buffer_new_and_alloc (0);
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fail_unless (buf != NULL);
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fail_unless (GST_IS_BUFFER (buf));
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data = gst_buffer_map (buf, &size, NULL, GST_MAP_READ);
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fail_unless (data == NULL);
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gst_buffer_unmap (buf, data, size);
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gst_buffer_unref (buf);
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/* normal alloc should still work */
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buf = gst_buffer_new_and_alloc (640 * 480 * 4);
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fail_unless (buf != NULL);
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fail_unless (GST_IS_BUFFER (buf));
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data = gst_buffer_map (buf, &size, NULL, GST_MAP_WRITE);
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fail_unless (data != NULL);
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fail_unless (size == (640 * 480 * 4));
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data[640 * 479 * 4 + 479] = 0xff;
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gst_buffer_unmap (buf, data, size);
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gst_buffer_unref (buf);
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#if 0
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/* Disabled this part of the test, because it happily succeeds on 64-bit
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* machines that have enough memory+swap, because the address space is large
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* enough. There's not really any way to test the failure case except by
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* allocating chunks of memory until it fails, which would suck. */
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/* now this better fail (don't run in valgrind, it will abort
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* or warn when passing silly arguments to malloc) */
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if (!RUNNING_ON_VALGRIND) {
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buf = gst_buffer_new_and_alloc ((guint) - 1);
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fail_unless (buf == NULL);
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}
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#endif
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}
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|
|
GST_END_TEST;
|
|
|
|
static Suite *
|
|
gst_buffer_suite (void)
|
|
{
|
|
Suite *s = suite_create ("GstBuffer");
|
|
TCase *tc_chain = tcase_create ("general");
|
|
|
|
suite_add_tcase (s, tc_chain);
|
|
tcase_add_test (tc_chain, test_subbuffer);
|
|
tcase_add_test (tc_chain, test_subbuffer_make_writable);
|
|
tcase_add_test (tc_chain, test_make_writable);
|
|
tcase_add_test (tc_chain, test_is_span_fast);
|
|
tcase_add_test (tc_chain, test_span);
|
|
tcase_add_test (tc_chain, test_metadata_writable);
|
|
tcase_add_test (tc_chain, test_copy);
|
|
tcase_add_test (tc_chain, test_try_new_and_alloc);
|
|
|
|
return s;
|
|
}
|
|
|
|
GST_CHECK_MAIN (gst_buffer);
|