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125 lines
4 KiB
C
125 lines
4 KiB
C
/* GStreamer
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*
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* Copyright (c) 2016 Stian Selnes <stian@pexip.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/gstharness.h>
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#include <gst/check/gstcheck.h>
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#include <gst/video/video.h>
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#define gst_caps_new_i420(w, h) gst_caps_new_i420_full (w, h, 30, 1, 1, 1)
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static GstCaps *
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gst_caps_new_i420_full (gint width, gint height, gint fps_n, gint fps_d,
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gint par_n, gint par_d)
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{
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GstVideoInfo info;
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gst_video_info_init (&info);
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gst_video_info_set_format (&info, GST_VIDEO_FORMAT_I420, width, height);
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GST_VIDEO_INFO_FPS_N (&info) = fps_n;
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GST_VIDEO_INFO_FPS_D (&info) = fps_d;
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GST_VIDEO_INFO_PAR_N (&info) = par_n;
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GST_VIDEO_INFO_PAR_D (&info) = par_d;
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return gst_video_info_to_caps (&info);
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}
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GST_START_TEST (test_encode_lag_in_frames)
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{
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GstHarness *h = gst_harness_new_parse ("vp9enc lag-in-frames=5 cpu-used=8 "
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"deadline=1");
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gint i;
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gst_harness_add_src_parse (h, "videotestsrc is-live=true pattern=black ! "
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"capsfilter caps=\"video/x-raw,format=I420,width=320,height=240,framerate=25/1\"",
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TRUE);
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/* Push 20 buffers into the encoder */
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fail_unless_equals_int (GST_FLOW_OK,
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gst_harness_src_crank_and_push_many (h, 20, 20));
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/* Only 5 buffers are allowed to be queued now */
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fail_unless (gst_harness_buffers_received (h) > 15);
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/* EOS will cause the remaining buffers to be drained */
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fail_unless (gst_harness_push_event (h, gst_event_new_eos ()));
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fail_unless_equals_int (gst_harness_buffers_received (h), 20);
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for (i = 0; i < 20; i++) {
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GstBuffer *buffer = gst_harness_pull (h);
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if (i == 0)
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fail_if (GST_BUFFER_FLAG_IS_SET (buffer, GST_BUFFER_FLAG_DELTA_UNIT));
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fail_unless_equals_uint64 (GST_BUFFER_TIMESTAMP (buffer),
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gst_util_uint64_scale (i, GST_SECOND, 25));
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fail_unless_equals_uint64 (GST_BUFFER_DURATION (buffer),
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gst_util_uint64_scale (1, GST_SECOND, 25));
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gst_buffer_unref (buffer);
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}
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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_autobitrate_changes_with_caps)
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{
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gint bitrate = 0;
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GstHarness *h = gst_harness_new ("vp9enc");
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gst_harness_set_src_caps (h, gst_caps_new_i420_full (1280, 720, 30, 1, 1, 1));
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/* Default settings for 720p @ 30fps ~0.8Mbps */
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g_object_get (h->element, "target-bitrate", &bitrate, NULL);
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fail_unless_equals_int (bitrate, 799000);
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/* Change bits-per-pixel 0.036 to give us ~1Mbps */
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g_object_set (h->element, "bits-per-pixel", 0.037, NULL);
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g_object_get (h->element, "target-bitrate", &bitrate, NULL);
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fail_unless_equals_int (bitrate, 1022000);
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/* Halving the framerate should halve the auto bitrate */
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gst_harness_set_src_caps (h, gst_caps_new_i420_full (1280, 720, 15, 1, 1, 1));
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g_object_get (h->element, "target-bitrate", &bitrate, NULL);
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fail_unless_equals_int (bitrate, 511000);
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/* Halving the resolution should quarter the auto bitrate */
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gst_harness_set_src_caps (h, gst_caps_new_i420_full (640, 360, 15, 1, 1, 1));
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g_object_get (h->element, "target-bitrate", &bitrate, NULL);
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fail_unless_equals_int (bitrate, 127000);
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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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vp9enc_suite (void)
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{
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Suite *s = suite_create ("vp9enc");
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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_encode_lag_in_frames);
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tcase_add_test (tc_chain, test_autobitrate_changes_with_caps);
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return s;
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}
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GST_CHECK_MAIN (vp9enc);
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