FFmpeg coverage


Directory: ../../../ffmpeg/
File: src/libavformat/a64.c
Date: 2024-02-29 09:57:37
Exec Total Coverage
Lines: 0 21 0.0%
Functions: 0 1 0.0%
Branches: 0 5 0.0%

Line Branch Exec Source
1 /*
2 * a64 muxer
3 * Copyright (c) 2009 Tobias Bindhammer
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 "libavutil/intreadwrite.h"
23 #include "libavcodec/codec_id.h"
24 #include "libavcodec/codec_par.h"
25 #include "avformat.h"
26 #include "mux.h"
27 #include "rawenc.h"
28
29 static int a64_write_header(AVFormatContext *s)
30 {
31 AVCodecParameters *par = s->streams[0]->codecpar;
32 uint8_t header[5] = {
33 0x00, //load
34 0x40, //address
35 0x00, //mode
36 0x00, //charset_lifetime (multi only)
37 0x00 //fps in 50/fps;
38 };
39
40 if (par->extradata_size < 4) {
41 av_log(s, AV_LOG_ERROR, "Missing extradata\n");
42 return AVERROR_INVALIDDATA;
43 }
44
45 switch (par->codec_id) {
46 case AV_CODEC_ID_A64_MULTI:
47 header[2] = 0x00;
48 header[3] = AV_RB32(par->extradata+0);
49 header[4] = 2;
50 break;
51 case AV_CODEC_ID_A64_MULTI5:
52 header[2] = 0x01;
53 header[3] = AV_RB32(par->extradata+0);
54 header[4] = 3;
55 break;
56 default:
57 return AVERROR_INVALIDDATA;
58 }
59 avio_write(s->pb, header, 2);
60 return 0;
61 }
62
63 const FFOutputFormat ff_a64_muxer = {
64 .p.name = "a64",
65 .p.long_name = NULL_IF_CONFIG_SMALL("a64 - video for Commodore 64"),
66 .p.extensions = "a64, A64",
67 .p.video_codec = AV_CODEC_ID_A64_MULTI,
68 .write_header = a64_write_header,
69 .write_packet = ff_raw_write_packet,
70 };
71