gstreamer/tests/check/elements/x264enc.c
Mark Nauwelaerts 6ebb4e0fed x264enc: adaptive NALU type checking
In particular, be less picky about SEI NALU order, which makes test more
robust with respect to changes in libx264.

See also #615410.
2010-04-19 10:39:36 +02:00

241 lines
6.9 KiB
C

/* GStreamer
*
* unit test for x264enc
*
* Copyright (C) <2008> Mark Nauwelaerts <mnauw@users.sf.net>
*
* 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., 59 Temple Place - Suite 330,
* Boston, MA 02111-1307, USA.
*/
#include <unistd.h>
#include <gst/check/gstcheck.h>
/* For ease of programming we use globals to keep refs for our floating
* src and sink pads we create; otherwise we always have to do get_pad,
* get_peer, and then remove references in every test function */
static GstPad *mysrcpad, *mysinkpad;
#define VIDEO_CAPS_STRING "video/x-raw-yuv, " \
"format = (fourcc) I420, " \
"width = (int) 384, " \
"height = (int) 288, " \
"framerate = (fraction) 25/1"
#define MPEG_CAPS_STRING "video/x-h264, " \
"width = (int) 384, " \
"height = (int) 288, " \
"framerate = (fraction) 25/1"
static GstStaticPadTemplate sinktemplate = GST_STATIC_PAD_TEMPLATE ("sink",
GST_PAD_SINK,
GST_PAD_ALWAYS,
GST_STATIC_CAPS (MPEG_CAPS_STRING));
static GstStaticPadTemplate srctemplate = GST_STATIC_PAD_TEMPLATE ("src",
GST_PAD_SRC,
GST_PAD_ALWAYS,
GST_STATIC_CAPS (VIDEO_CAPS_STRING));
static GstElement *
setup_x264enc (void)
{
GstElement *x264enc;
GST_DEBUG ("setup_x264enc");
x264enc = gst_check_setup_element ("x264enc");
mysrcpad = gst_check_setup_src_pad (x264enc, &srctemplate, NULL);
mysinkpad = gst_check_setup_sink_pad (x264enc, &sinktemplate, NULL);
gst_pad_set_active (mysrcpad, TRUE);
gst_pad_set_active (mysinkpad, TRUE);
return x264enc;
}
static void
cleanup_x264enc (GstElement * x264enc)
{
GST_DEBUG ("cleanup_x264enc");
gst_element_set_state (x264enc, GST_STATE_NULL);
gst_pad_set_active (mysrcpad, FALSE);
gst_pad_set_active (mysinkpad, FALSE);
gst_check_teardown_src_pad (x264enc);
gst_check_teardown_sink_pad (x264enc);
gst_check_teardown_element (x264enc);
}
static void
check_caps (GstCaps * caps)
{
GstStructure *s;
const GValue *sf, *avcc;
const gchar *stream_format;
fail_unless (caps != NULL);
GST_INFO ("caps %" GST_PTR_FORMAT, caps);
s = gst_caps_get_structure (caps, 0);
fail_unless (s != NULL);
fail_if (!gst_structure_has_name (s, "video/x-h264"));
sf = gst_structure_get_value (s, "stream-format");
fail_unless (sf != NULL);
fail_unless (G_VALUE_HOLDS_STRING (sf));
stream_format = g_value_get_string (sf);
fail_unless (stream_format != NULL);
if (strcmp (stream_format, "avc") == 0) {
const guint8 *data;
GstBuffer *buf;
avcc = gst_structure_get_value (s, "codec_data");
fail_unless (avcc != NULL);
fail_unless (GST_VALUE_HOLDS_BUFFER (avcc));
buf = gst_value_get_buffer (avcc);
fail_unless (buf != NULL);
data = GST_BUFFER_DATA (buf);
fail_unless_equals_int (data[0], 1);
/* should be either baseline, main profile or extended profile */
fail_unless (data[1] == 0x42 || data[1] == 0x4D || data[1] == 0x58);
} else if (strcmp (stream_format, "byte-stream") == 0) {
fail_if (gst_structure_get_value (s, "codec_data") != NULL);
} else {
fail_if (TRUE, "unexpected stream-format in caps: %s", stream_format);
}
}
GST_START_TEST (test_video_pad)
{
GstElement *x264enc;
GstBuffer *inbuffer, *outbuffer;
GstCaps *caps;
int i, num_buffers;
x264enc = setup_x264enc ();
fail_unless (gst_element_set_state (x264enc,
GST_STATE_PLAYING) == GST_STATE_CHANGE_SUCCESS,
"could not set to playing");
/* corresponds to I420 buffer for the size mentioned in the caps */
inbuffer = gst_buffer_new_and_alloc (384 * 288 * 3 / 2);
/* makes valgrind's memcheck happier */
memset (GST_BUFFER_DATA (inbuffer), 0, GST_BUFFER_SIZE (inbuffer));
caps = gst_caps_from_string (VIDEO_CAPS_STRING);
gst_buffer_set_caps (inbuffer, caps);
gst_caps_unref (caps);
GST_BUFFER_TIMESTAMP (inbuffer) = 0;
ASSERT_BUFFER_REFCOUNT (inbuffer, "inbuffer", 1);
fail_unless (gst_pad_push (mysrcpad, inbuffer) == GST_FLOW_OK);
/* send eos to have all flushed if needed */
fail_unless (gst_pad_push_event (mysrcpad, gst_event_new_eos ()) == TRUE);
num_buffers = g_list_length (buffers);
fail_unless (num_buffers == 1);
/* clean up buffers */
for (i = 0; i < num_buffers; ++i) {
outbuffer = GST_BUFFER (buffers->data);
fail_if (outbuffer == NULL);
switch (i) {
case 0:
{
gint nsize, npos, j, type, next_type;
guint8 *data = GST_BUFFER_DATA (outbuffer);
gint size = GST_BUFFER_SIZE (outbuffer);
check_caps (GST_BUFFER_CAPS (outbuffer));
npos = 0;
j = 0;
/* need SPS first */
next_type = 7;
/* loop through NALs */
while (npos < size) {
fail_unless (size - npos >= 4);
nsize = GST_READ_UINT32_BE (data + npos);
fail_unless (nsize > 0);
fail_unless (npos + 4 + nsize <= size);
type = data[npos + 4] & 0x1F;
/* check the first NALs, disregard AU (9), SEI (6) */
if (type != 9 && type != 6) {
fail_unless (type == next_type);
switch (type) {
case 7:
/* SPS */
next_type = 8;
break;
case 8:
/* PPS */
next_type = 5;
break;
default:
break;
}
j++;
}
npos += nsize + 4;
}
/* should have reached the exact end */
fail_unless (npos == size);
break;
}
default:
break;
}
buffers = g_list_remove (buffers, outbuffer);
ASSERT_BUFFER_REFCOUNT (outbuffer, "outbuffer", 1);
gst_buffer_unref (outbuffer);
outbuffer = NULL;
}
cleanup_x264enc (x264enc);
g_list_free (buffers);
buffers = NULL;
}
GST_END_TEST;
Suite *
x264enc_suite (void)
{
Suite *s = suite_create ("x264enc");
TCase *tc_chain = tcase_create ("general");
suite_add_tcase (s, tc_chain);
tcase_add_test (tc_chain, test_video_pad);
return s;
}
int
main (int argc, char **argv)
{
int nf;
Suite *s = x264enc_suite ();
SRunner *sr = srunner_create (s);
gst_check_init (&argc, &argv);
srunner_run_all (sr, CK_NORMAL);
nf = srunner_ntests_failed (sr);
srunner_free (sr);
return nf;
}