/* GStreamer * * Copyright (C) 2015 Pexip AS * @author Stian Selnes * * 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 #include #include #define RTP_H263_CAPS_STR(p) \ "application/x-rtp,media=video,encoding-name=H263,clock-rate=90000," \ "payload=" G_STRINGIFY(p) #define H263P_RTP_CAPS_STR(p) \ "application/x-rtp,media=video,encoding-name=H263-1998,clock-rate=90000," \ "payload="G_STRINGIFY(p) static gboolean have_element (const gchar * element_name) { GstElement *element; gboolean ret; element = gst_element_factory_make (element_name, NULL); ret = element != NULL; if (element) gst_object_unref (element); return ret; } static GstBuffer * create_rtp_buffer (guint8 * data, gsize size, guint ts, gint seqnum) { GstBuffer *buf = gst_rtp_buffer_new_copy_data (data, size); GstRTPBuffer rtp = GST_RTP_BUFFER_INIT; GST_BUFFER_PTS (buf) = (ts) * (GST_SECOND / 30); gst_rtp_buffer_map (buf, GST_MAP_WRITE, &rtp); gst_rtp_buffer_set_seq (&rtp, seqnum); gst_rtp_buffer_unmap (&rtp); return buf; } GST_START_TEST (test_h263depay_start_packet_too_small_mode_a) { GstHarness *h = gst_harness_new ("rtph263depay"); guint8 packet[] = { 0x80, 0xa2, 0x17, 0x62, 0x57, 0xbb, 0x48, 0x98, 0x4a, 0x59, 0xe8, 0xdc, 0x00, 0x00, 0x80, 0x00 }; gst_harness_set_src_caps_str (h, RTP_H263_CAPS_STR (34)); fail_unless_equals_int (GST_FLOW_OK, gst_harness_push (h, create_rtp_buffer (packet, sizeof (packet), 0, 0))); /* Packet should be dropped and depayloader not crash */ fail_unless_equals_int (0, gst_harness_buffers_received (h)); gst_harness_teardown (h); } GST_END_TEST; GST_START_TEST (test_h263depay_start_packet_too_small_mode_b) { GstHarness *h = gst_harness_new ("rtph263depay"); guint8 packet[] = { 0x80, 0xa2, 0x17, 0x62, 0x57, 0xbb, 0x48, 0x98, 0x4a, 0x59, 0xe8, 0xdc, 0x80, 0x00, 0x80, 0x00, 0x00, 0x00, 0x00, 0x00 }; gst_harness_set_src_caps_str (h, RTP_H263_CAPS_STR (34)); fail_unless_equals_int (GST_FLOW_OK, gst_harness_push (h, create_rtp_buffer (packet, sizeof (packet), 0, 0))); /* Packet should be dropped and depayloader not crash */ fail_unless_equals_int (0, gst_harness_buffers_received (h)); gst_harness_teardown (h); } GST_END_TEST; GST_START_TEST (test_h263depay_start_packet_too_small_mode_c) { GstHarness *h = gst_harness_new ("rtph263depay"); guint8 packet[] = { 0x80, 0xa2, 0x17, 0x62, 0x57, 0xbb, 0x48, 0x98, 0x4a, 0x59, 0xe8, 0xdc, 0xc0, 0x00, 0x80, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 }; gst_harness_set_src_caps_str (h, RTP_H263_CAPS_STR (34)); fail_unless_equals_int (GST_FLOW_OK, gst_harness_push (h, create_rtp_buffer (packet, sizeof (packet), 0, 0))); /* Packet should be dropped and depayloader not crash */ fail_unless_equals_int (0, gst_harness_buffers_received (h)); gst_harness_teardown (h); } GST_END_TEST; GST_START_TEST (test_h263pay_mode_b_snow) { /* Payloading one large frame (like snow) is more likely to use mode b and * trigger issues in valgrind seen previously like double free, invalid read * etc. */ GstHarness *h; guint frames = 1; guint i; if (!have_element ("avenc_h263")) return; h = gst_harness_new_parse ("avenc_h263 rtp-payload-size=1 ! rtph263pay mtu=1350 "); gst_harness_add_src_parse (h, "videotestsrc pattern=snow is-live=1 ! " "capsfilter caps=\"video/x-raw,format=I420,width=176,height=144\"", TRUE); for (i = 0; i < frames; i++) gst_harness_push_from_src (h); fail_unless (gst_harness_buffers_received (h) >= frames); gst_harness_teardown (h); } GST_END_TEST; /* gst_rtp_buffer_get_payload() may return a copy of the payload. This test * makes sure that the rtph263pdepay also produces the correct output in this * case. */ GST_START_TEST (test_h263pdepay_fragmented_memory_non_writable_buffer) { GstHarness *h; GstBuffer *header_buf, *payload_buf, *buf; GstRTPBuffer rtp = GST_RTP_BUFFER_INIT; guint8 header[] = { 0x04, 0x00 }; guint8 payload[] = { 0x80, 0x02, 0x1c, 0xb8, 0x01, 0x00, 0x11, 0xe0, 0x44, 0xc4 }; guint8 frame[] = { 0x00, 0x00, 0x80, 0x02, 0x1c, 0xb8, 0x01, 0x00, 0x11, 0xe0, 0x44, 0xc4 }; h = gst_harness_new ("rtph263pdepay"); gst_harness_set_src_caps_str (h, "application/x-rtp, media=video, " "clock-rate=90000, encoding-name=H263-1998"); /* Packet with M=1, P=1 */ header_buf = gst_rtp_buffer_new_allocate (sizeof (header), 0, 0); gst_rtp_buffer_map (header_buf, GST_MAP_WRITE, &rtp); gst_rtp_buffer_set_marker (&rtp, TRUE); memcpy (gst_rtp_buffer_get_payload (&rtp), header, sizeof (header)); gst_rtp_buffer_unmap (&rtp); payload_buf = gst_buffer_new_allocate (NULL, sizeof (payload), NULL); gst_buffer_fill (payload_buf, 0, payload, sizeof (payload)); buf = gst_buffer_append (header_buf, payload_buf); gst_harness_push (h, gst_buffer_ref (buf)); gst_buffer_unref (buf); buf = gst_harness_pull (h); fail_unless (gst_buffer_memcmp (buf, 0, frame, sizeof (frame)) == 0); gst_buffer_unref (buf); gst_harness_teardown (h); } GST_END_TEST; /* gst_rtp_buffer_get_payload() may return a copy of the payload. This test * makes sure that the rtph263pdepay also produces the correct output in this * case. */ GST_START_TEST (test_h263pdepay_fragmented_memory_non_writable_buffer_split_frame) { GstHarness *h; GstBuffer *header_buf, *payload_buf, *buf; GstRTPBuffer rtp = GST_RTP_BUFFER_INIT; guint8 header[] = { 0x04, 0x00 }; guint8 payload[] = { 0x80, 0x02, 0x1c, 0xb8, 0x01, 0x00, 0x11, 0xe0, 0x44, 0xc4 }; guint8 frame[] = { 0x00, 0x00, 0x80, 0x02, 0x1c, 0xb8, 0x01, 0x00, 0x11, 0xe0, 0x44, 0xc4 }; h = gst_harness_new ("rtph263pdepay"); gst_harness_set_src_caps_str (h, "application/x-rtp, media=video, " "clock-rate=90000, encoding-name=H263-1998"); /* First packet, M=0, P=1 */ header_buf = gst_rtp_buffer_new_allocate (sizeof (header), 0, 0); gst_rtp_buffer_map (header_buf, GST_MAP_WRITE, &rtp); gst_rtp_buffer_set_marker (&rtp, FALSE); gst_rtp_buffer_set_seq (&rtp, 0); memcpy (gst_rtp_buffer_get_payload (&rtp), header, sizeof (header)); gst_rtp_buffer_unmap (&rtp); payload_buf = gst_buffer_new_allocate (NULL, sizeof (payload), NULL); gst_buffer_fill (payload_buf, 0, payload, sizeof (payload)); buf = gst_buffer_append (header_buf, payload_buf); gst_harness_push (h, gst_buffer_ref (buf)); gst_buffer_unref (buf); fail_unless_equals_int (gst_harness_buffers_received (h), 0); /* Second packet, M=1, P=1 */ header_buf = gst_rtp_buffer_new_allocate (sizeof (header), 0, 0); gst_rtp_buffer_map (header_buf, GST_MAP_WRITE, &rtp); gst_rtp_buffer_set_marker (&rtp, TRUE); gst_rtp_buffer_set_seq (&rtp, 1); memcpy (gst_rtp_buffer_get_payload (&rtp), header, sizeof (header)); gst_rtp_buffer_unmap (&rtp); payload_buf = gst_buffer_new_allocate (NULL, sizeof (payload), NULL); gst_buffer_memset (payload_buf, 0, 0, 10); buf = gst_buffer_append (header_buf, payload_buf); gst_harness_push (h, gst_buffer_ref (buf)); gst_buffer_unref (buf); fail_unless_equals_int (gst_harness_buffers_received (h), 1); buf = gst_harness_pull (h); fail_unless (gst_buffer_memcmp (buf, 0, frame, sizeof (frame)) == 0); gst_buffer_unref (buf); gst_harness_teardown (h); } GST_END_TEST; GST_START_TEST (test_h263pdepay_dont_push_empty_frame) { GstHarness *h = gst_harness_new ("rtph263pdepay"); /* Packet that only contains header information and an extra picture header * (PLEN > 0). Partly handcrafted packet. Originally this packet did not * have P=1 (hence it was not start of a picture). With both P=1 and M=1 we * only need one packet to reproduce the issue where trying to push an empty * frame when PLEN is set */ guint8 packet[] = { 0x80, 0xe8, 0xbc, 0xaa, 0x14, 0x12, 0x16, 0x5c, 0xb8, 0x4e, 0x39, 0x04, 0x25, 0x00, 0x54, 0x39, 0xd0, 0x12, 0x06, 0x9e, 0xb5, 0x0a, 0xf5, 0xe8, 0x32, 0xeb, 0xd0, 0x6b, 0xd6, 0xa2, 0xfa, 0xd4, 0x3d, 0xd7, 0xa0, 0x2b, 0x24, 0x97, 0xc3, 0xbf, 0xc0, 0xbb, 0xd7, 0xa0, }; gst_harness_set_src_caps_str (h, H263P_RTP_CAPS_STR (100)); fail_unless_equals_int (GST_FLOW_OK, gst_harness_push (h, create_rtp_buffer (packet, sizeof (packet), 0, 0))); fail_unless_equals_int (gst_harness_buffers_received (h), 0); gst_harness_teardown (h); } GST_END_TEST; GST_START_TEST (test_h263ppay_non_fixed_caps) { GstHarness *h; guint8 frame[] = { 0x00, 0x00, 0x80, 0x06, 0x1c, 0xa8, 0x01, 0x04, 0x91, 0xe0, 0x37, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, }; h = gst_harness_new_parse ("rtph263ppay"); /* Set non-fixed caps after payloader */ gst_harness_set_caps_str (h, "video/x-h263, variant=(string)itu", "application/x-rtp, clock-rate=[1, MAX]"); gst_harness_push (h, gst_buffer_new_wrapped_full (GST_MEMORY_FLAG_READONLY, frame, sizeof (frame), 0, sizeof (frame), NULL, NULL)); fail_unless_equals_int (1, gst_harness_buffers_received (h)); gst_harness_teardown (h); } GST_END_TEST; static Suite * rtph263_suite (void) { Suite *s = suite_create ("rtph263"); TCase *tc_chain; suite_add_tcase (s, (tc_chain = tcase_create ("h263depay"))); tcase_add_test (tc_chain, test_h263depay_start_packet_too_small_mode_a); tcase_add_test (tc_chain, test_h263depay_start_packet_too_small_mode_b); tcase_add_test (tc_chain, test_h263depay_start_packet_too_small_mode_c); suite_add_tcase (s, (tc_chain = tcase_create ("h263pay"))); tcase_add_test (tc_chain, test_h263pay_mode_b_snow); suite_add_tcase (s, (tc_chain = tcase_create ("h263pdepay"))); tcase_add_test (tc_chain, test_h263pdepay_fragmented_memory_non_writable_buffer); tcase_add_test (tc_chain, test_h263pdepay_fragmented_memory_non_writable_buffer_split_frame); tcase_add_test (tc_chain, test_h263pdepay_dont_push_empty_frame); suite_add_tcase (s, (tc_chain = tcase_create ("h263ppay"))); tcase_add_test (tc_chain, test_h263ppay_non_fixed_caps); return s; } GST_CHECK_MAIN (rtph263);