Víctor Manuel Jáquez Leal ef7829b6ad tests: add y4mdec unit test
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>
2025-05-05 11:53:47 +00:00

146 lines
3.6 KiB
C

/* GStreamer
*
* unit test for y4m
*
* Copyright (C) <2025> Igalia, S.L.
* Author: Victor M. Jaquez L. <vjaquez@igalia.com>
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Library General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Library General Public License for more details.
*
* You should have received a copy of the GNU Library General Public
* License along with this library; if not, write to the
* Free Software Foundation, Inc., 51 Franklin St, Fifth Floor,
* Boston, MA 02110-1301, USA.
*/
#include <gst/check/gstcheck.h>
#include <gst/check/gstharness.h>
#include <gst/video/video.h>
#include "y4mdata.c"
static GstBuffer *
run_test (GstHarness * h, gpointer data, guint size)
{
GstBuffer *inbuf, *outbuf;
GstFlowReturn ret;
gsize len;
gst_harness_set_src_caps_str (h, "application/x-yuv4mpeg,y4mversion=2");
inbuf = gst_buffer_new_and_alloc (size);
fail_unless (inbuf);
len = gst_buffer_fill (inbuf, 0, data, size);
fail_unless (len == size);
ret = gst_harness_push (h, inbuf);
fail_unless (ret == GST_FLOW_OK, "GstFlowReturn was %s",
gst_flow_get_name (ret));
outbuf = gst_harness_pull (h);
fail_unless (outbuf);
return outbuf;
}
GST_START_TEST (test_y4m_i420_padded_square)
{
GstHarness *h;
GstBuffer *outbuf;
GstVideoInfo info;
gst_video_info_set_format (&info, GST_VIDEO_FORMAT_I420, 15, 15);
fail_unless (GST_VIDEO_INFO_SIZE (&info) == red_box_i420_15x15_yuv_len);
h = gst_harness_new ("y4mdec");
outbuf = run_test (h, red_box_y4m, red_box_y4m_len);
{
GstMapInfo map;
guint i, j;
fail_unless (gst_buffer_map (outbuf, &map, GST_MAP_READ));
GST_MEMDUMP ("decoded red box:", map.data, map.size);
/* Check for a red square */
/* Y */
/* 0xf bit per row is padded: ignore */
for (i = 0; i < 0xf; i++) {
for (j = 0; j < 0xf; j++) {
fail_unless (map.data[i * 0x10 + j] == 0x51, "index %x failed",
i * 0x10 + j);
}
}
/* 0xf0-0xff padded: ignore */
/* U */
for (i = 0x100; i < 0x140; i++)
fail_unless (map.data[i] == 0x5a);
/* V */
for (i = 0x140; i < 0x180; i++)
fail_unless (map.data[i] == 0xf0);
gst_buffer_unmap (outbuf, &map);
}
gst_buffer_unref (outbuf);
gst_harness_teardown (h);
}
GST_END_TEST;
GST_START_TEST (test_y4m_y42b_square)
{
GstHarness *h;
GstBuffer *outbuf;
GstVideoInfo info;
h = gst_harness_new ("y4mdec");
gst_video_info_set_format (&info, GST_VIDEO_FORMAT_Y42B, 16, 16);
fail_unless (GST_VIDEO_INFO_SIZE (&info) == red_box_y42b_16x16_yuv_len);
outbuf = run_test (h, red_box_y42b_16x16_y4m, red_box_y42b_16x16_y4m_len);
{
GstMapInfo map;
guint cmp;
fail_unless (gst_buffer_map (outbuf, &map, GST_MAP_READ));
GST_MEMDUMP ("decoded red box:", map.data, map.size);
cmp = memcmp (map.data, red_box_y42b_16x16_yuv, red_box_i420_15x15_yuv_len);
fail_unless (cmp == 0);
gst_buffer_unmap (outbuf, &map);
}
gst_buffer_unref (outbuf);
gst_harness_teardown (h);
}
GST_END_TEST;
static Suite *
y4mdec_suite (void)
{
Suite *s = suite_create ("y4mdec");
TCase *tc_chain = tcase_create ("general");
suite_add_tcase (s, tc_chain);
tcase_add_test (tc_chain, test_y4m_i420_padded_square);
tcase_add_test (tc_chain, test_y4m_y42b_square);
return s;
}
GST_CHECK_MAIN (y4mdec);