FFmpeg coverage

Line	Branch	Exec	Source
1			/*
2			* RTP Packetization of RAW video (RFC4175)
3			* Copyright (c) 2021 Limin Wang
4			*
5			* This file is part of FFmpeg.
6			*
7			* FFmpeg is free software; you can redistribute it and/or
8			* modify it under the terms of the GNU Lesser General Public
9			* License as published by the Free Software Foundation; either
10			* version 2.1 of the License, or (at your option) any later version.
11			*
12			* FFmpeg is distributed in the hope that it will be useful,
13			* but WITHOUT ANY WARRANTY; without even the implied warranty of
14			* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
15			* Lesser General Public License for more details.
16			*
17			* You should have received a copy of the GNU Lesser General Public
18			* License along with FFmpeg; if not, write to the Free Software
19			* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
20			*/
21			#include "avformat.h"
22			#include "rtpenc.h"
23
24		✗	void ff_rtp_send_raw_rfc4175(AVFormatContext *s1, const uint8_t *buf, int size, int interlaced, int field)
25			{
26		✗	RTPMuxContext *s = s1->priv_data;
27		✗	int width = s1->streams[0]->codecpar->width;
28		✗	int height = s1->streams[0]->codecpar->height;
29			int xinc, yinc, pgroup;
30		✗	int i = 0;
31		✗	int offset = 0;
32
33		✗	s->timestamp = s->cur_timestamp;
34		✗	switch (s1->streams[0]->codecpar->format) {
35		✗	case AV_PIX_FMT_UYVY422:
36		✗	xinc = 2;
37		✗	yinc = 1 << interlaced;
38		✗	pgroup = 4;
39		✗	break;
40		✗	case AV_PIX_FMT_YUV422P10:
41		✗	xinc = 2;
42		✗	yinc = 1 << interlaced;
43		✗	pgroup = 5;
44		✗	break;
45		✗	case AV_PIX_FMT_YUV420P:
46		✗	xinc = 4;
47		✗	yinc = 1 << interlaced;
48		✗	pgroup = 6;
49		✗	break;
50		✗	case AV_PIX_FMT_RGB24:
51		✗	xinc = 1;
52		✗	yinc = 1 << interlaced;
53		✗	pgroup = 3;
54		✗	break;
55		✗	case AV_PIX_FMT_BGR24:
56		✗	xinc = 1;
57		✗	yinc = 1 << interlaced;
58		✗	pgroup = 3;
59		✗	break;
60		✗	default:
61		✗	return;
62			}
63
64		✗	while (i < height) {
65		✗	int left = s->max_payload_size;
66		✗	uint8_t *dest = s->buf;
67			uint8_t *headers;
68		✗	const int head_size = 6;
69			int next_line;
70			int length, cont, pixels;
71
72			/* Extended Sequence Number */
73		✗	*dest++ = 0;
74		✗	*dest++ = 0;
75		✗	left -= 2;
76
77		✗	headers = dest;
78			do {
79			int l_line;
80
81		✗	pixels = width - offset;
82		✗	length = (pixels * pgroup) / xinc;
83
84		✗	left -= head_size;
85		✗	if (left >= length) {
86		✗	next_line = 1;
87			} else {
88		✗	pixels = (left / pgroup) * xinc;
89		✗	length = (pixels * pgroup) / xinc;
90		✗	next_line = 0;
91			}
92		✗	left -= length;
93
94			/* Length */
95		✗	*dest++ = (length >> 8) & 0xff;
96		✗	*dest++ = length & 0xff;
97
98			/* Line No */
99		✗	l_line = i >> interlaced;
100		✗	*dest++ = ((l_line >> 8) & 0x7f) | ((field << 7) & 0x80);
101		✗	*dest++ = l_line & 0xff;
102		✗	if (next_line) i += yinc;
103
104		✗	cont = (left > (head_size + pgroup) && i < height) ? 0x80 : 0x00;
105			/* Offset and Continuation marker */
106		✗	*dest++ = ((offset >> 8) & 0x7f) | cont;
107		✗	*dest++ = offset & 0xff;
108
109		✗	if (next_line)
110		✗	offset = 0;
111			else
112		✗	offset += pixels;
113		✗	} while (cont);
114
115			do {
116			int l_field;
117			int l_line;
118			int l_off;
119			int copy_offset;
120
121		✗	length = (headers[0] << 8) | headers[1];
122		✗	l_field = (headers[2] & 0x80) >> 7;
123		✗	l_line = ((headers[2] & 0x7f) << 8) | headers[3];
124		✗	l_off = ((headers[4] & 0x7f) << 8) | headers[5];
125		✗	cont = headers[4] & 0x80;
126		✗	headers += head_size;
127
128		✗	if (interlaced)
129		✗	l_line = 2 * l_line + l_field;
130		✗	copy_offset = (l_line * width + l_off) * pgroup / xinc;
131		✗	if (copy_offset + length > size)
132		✗	break;
133		✗	memcpy (dest, buf + copy_offset, length);
134		✗	dest += length;
135		✗	} while (cont);
136
137		✗	ff_rtp_send_data (s1, s->buf, s->max_payload_size - left, i >= height);
138			}
139			}
140