ef7829b6ad
simple decoding of a i420 15x15 red square, shared with the y4menc unit test. Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/8719>
146 lines
3.6 KiB
C
146 lines
3.6 KiB
C
/* GStreamer
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*
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* unit test for y4m
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*
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* Copyright (C) <2025> Igalia, S.L.
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* Author: Victor M. Jaquez L. <vjaquez@igalia.com>
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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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#include <gst/check/gstcheck.h>
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#include <gst/check/gstharness.h>
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#include <gst/video/video.h>
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#include "y4mdata.c"
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static GstBuffer *
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run_test (GstHarness * h, gpointer data, guint size)
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{
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GstBuffer *inbuf, *outbuf;
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GstFlowReturn ret;
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gsize len;
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gst_harness_set_src_caps_str (h, "application/x-yuv4mpeg,y4mversion=2");
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inbuf = gst_buffer_new_and_alloc (size);
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fail_unless (inbuf);
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len = gst_buffer_fill (inbuf, 0, data, size);
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fail_unless (len == size);
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ret = gst_harness_push (h, inbuf);
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fail_unless (ret == GST_FLOW_OK, "GstFlowReturn was %s",
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gst_flow_get_name (ret));
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outbuf = gst_harness_pull (h);
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fail_unless (outbuf);
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return outbuf;
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}
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GST_START_TEST (test_y4m_i420_padded_square)
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{
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GstHarness *h;
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GstBuffer *outbuf;
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GstVideoInfo info;
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gst_video_info_set_format (&info, GST_VIDEO_FORMAT_I420, 15, 15);
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fail_unless (GST_VIDEO_INFO_SIZE (&info) == red_box_i420_15x15_yuv_len);
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h = gst_harness_new ("y4mdec");
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outbuf = run_test (h, red_box_y4m, red_box_y4m_len);
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{
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GstMapInfo map;
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guint i, j;
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fail_unless (gst_buffer_map (outbuf, &map, GST_MAP_READ));
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GST_MEMDUMP ("decoded red box:", map.data, map.size);
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/* Check for a red square */
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/* Y */
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/* 0xf bit per row is padded: ignore */
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for (i = 0; i < 0xf; i++) {
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for (j = 0; j < 0xf; j++) {
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fail_unless (map.data[i * 0x10 + j] == 0x51, "index %x failed",
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i * 0x10 + j);
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}
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}
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/* 0xf0-0xff padded: ignore */
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/* U */
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for (i = 0x100; i < 0x140; i++)
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fail_unless (map.data[i] == 0x5a);
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/* V */
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for (i = 0x140; i < 0x180; i++)
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fail_unless (map.data[i] == 0xf0);
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gst_buffer_unmap (outbuf, &map);
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}
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gst_buffer_unref (outbuf);
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gst_harness_teardown (h);
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}
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GST_END_TEST;
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GST_START_TEST (test_y4m_y42b_square)
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{
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GstHarness *h;
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GstBuffer *outbuf;
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GstVideoInfo info;
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h = gst_harness_new ("y4mdec");
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gst_video_info_set_format (&info, GST_VIDEO_FORMAT_Y42B, 16, 16);
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fail_unless (GST_VIDEO_INFO_SIZE (&info) == red_box_y42b_16x16_yuv_len);
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outbuf = run_test (h, red_box_y42b_16x16_y4m, red_box_y42b_16x16_y4m_len);
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{
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GstMapInfo map;
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guint cmp;
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fail_unless (gst_buffer_map (outbuf, &map, GST_MAP_READ));
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GST_MEMDUMP ("decoded red box:", map.data, map.size);
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cmp = memcmp (map.data, red_box_y42b_16x16_yuv, red_box_i420_15x15_yuv_len);
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fail_unless (cmp == 0);
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gst_buffer_unmap (outbuf, &map);
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}
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gst_buffer_unref (outbuf);
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gst_harness_teardown (h);
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}
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GST_END_TEST;
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static Suite *
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y4mdec_suite (void)
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{
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Suite *s = suite_create ("y4mdec");
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TCase *tc_chain = tcase_create ("general");
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suite_add_tcase (s, tc_chain);
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tcase_add_test (tc_chain, test_y4m_i420_padded_square);
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tcase_add_test (tc_chain, test_y4m_y42b_square);
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return s;
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}
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GST_CHECK_MAIN (y4mdec);
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