FFmpeg coverage


Directory: ../../../ffmpeg/
File: src/libavformat/crcenc.c
Date: 2022-12-09 07:38:14
Exec Total Coverage
Lines: 12 12 100.0%
Functions: 3 3 100.0%
Branches: 0 0 -%

Line Branch Exec Source
1 /*
2 * CRC encoder (for codec/format testing)
3 * Copyright (c) 2002 Fabrice Bellard
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
22 #include <inttypes.h>
23
24 #include "libavutil/adler32.h"
25 #include "avformat.h"
26
27 typedef struct CRCState {
28 uint32_t crcval;
29 } CRCState;
30
31 178 static int crc_init(struct AVFormatContext *s)
32 {
33 178 CRCState *crc = s->priv_data;
34
35 /* init CRC */
36 178 crc->crcval = 1;
37
38 178 return 0;
39 }
40
41 13739 static int crc_write_packet(struct AVFormatContext *s, AVPacket *pkt)
42 {
43 13739 CRCState *crc = s->priv_data;
44 13739 crc->crcval = av_adler32_update(crc->crcval, pkt->data, pkt->size);
45 13739 return 0;
46 }
47
48 178 static int crc_write_trailer(struct AVFormatContext *s)
49 {
50 178 CRCState *crc = s->priv_data;
51
52 178 avio_printf(s->pb, "CRC=0x%08"PRIx32"\n", crc->crcval);
53
54 178 return 0;
55 }
56
57 const AVOutputFormat ff_crc_muxer = {
58 .name = "crc",
59 .long_name = NULL_IF_CONFIG_SMALL("CRC testing"),
60 .priv_data_size = sizeof(CRCState),
61 .audio_codec = AV_CODEC_ID_PCM_S16LE,
62 .video_codec = AV_CODEC_ID_RAWVIDEO,
63 .init = crc_init,
64 .write_packet = crc_write_packet,
65 .write_trailer = crc_write_trailer,
66 .flags = AVFMT_NOTIMESTAMPS,
67 };
68