blob: 6516ad3a225d52aa1583cc513dd9e7153109f18f
1 | /* |
2 | * Copyright (c) 2005 Francois Revol |
3 | * |
4 | * This file is part of FFmpeg. |
5 | * |
6 | * FFmpeg is free software; you can redistribute it and/or |
7 | * modify it under the terms of the GNU Lesser General Public |
8 | * License as published by the Free Software Foundation; either |
9 | * version 2.1 of the License, or (at your option) any later version. |
10 | * |
11 | * FFmpeg is distributed in the hope that it will be useful, |
12 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
13 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
14 | * Lesser General Public License for more details. |
15 | * |
16 | * You should have received a copy of the GNU Lesser General Public |
17 | * License along with FFmpeg; if not, write to the Free Software |
18 | * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA |
19 | */ |
20 | |
21 | #include "config.h" |
22 | #include <limits.h> |
23 | #include <fcntl.h> |
24 | #include <stdio.h> |
25 | #include <stdlib.h> |
26 | #include <string.h> |
27 | #if HAVE_UNISTD_H |
28 | #include <unistd.h> |
29 | #endif |
30 | #if HAVE_IO_H |
31 | #include <io.h> |
32 | #endif |
33 | |
34 | #include "libavutil/avstring.h" |
35 | #include "libavutil/time.h" |
36 | #include "libavformat/avformat.h" |
37 | |
38 | #define FILENAME_BUF_SIZE 4096 |
39 | #define PKTFILESUFF "_%08" PRId64 "_%02d_%010" PRId64 "_%06d_%c.bin" |
40 | |
41 | static int usage(int ret) |
42 | { |
43 | fprintf(stderr, "Dump (up to maxpkts) AVPackets as they are demuxed by libavformat.\n"); |
44 | fprintf(stderr, "Each packet is dumped in its own file named like\n"); |
45 | fprintf(stderr, "$(basename file.ext)_$PKTNUM_$STREAMINDEX_$STAMP_$SIZE_$FLAGS.bin\n"); |
46 | fprintf(stderr, "pktdumper [-nw] file [maxpkts]\n"); |
47 | fprintf(stderr, "-n\twrite No file at all, only demux.\n"); |
48 | fprintf(stderr, "-w\tWait at end of processing instead of quitting.\n"); |
49 | return ret; |
50 | } |
51 | |
52 | int main(int argc, char **argv) |
53 | { |
54 | char fntemplate[FILENAME_BUF_SIZE]; |
55 | char pktfilename[FILENAME_BUF_SIZE]; |
56 | AVFormatContext *fctx = NULL; |
57 | AVPacket pkt; |
58 | int64_t pktnum = 0; |
59 | int64_t maxpkts = 0; |
60 | int donotquit = 0; |
61 | int nowrite = 0; |
62 | int err; |
63 | |
64 | if ((argc > 1) && !strncmp(argv[1], "-", 1)) { |
65 | if (strchr(argv[1], 'w')) |
66 | donotquit = 1; |
67 | if (strchr(argv[1], 'n')) |
68 | nowrite = 1; |
69 | argv++; |
70 | argc--; |
71 | } |
72 | if (argc < 2) |
73 | return usage(1); |
74 | if (argc > 2) |
75 | maxpkts = atoi(argv[2]); |
76 | av_strlcpy(fntemplate, argv[1], sizeof(fntemplate)); |
77 | if (strrchr(argv[1], '/')) |
78 | av_strlcpy(fntemplate, strrchr(argv[1], '/') + 1, sizeof(fntemplate)); |
79 | if (strrchr(fntemplate, '.')) |
80 | *strrchr(fntemplate, '.') = '\0'; |
81 | if (strchr(fntemplate, '%')) { |
82 | fprintf(stderr, "cannot use filenames containing '%%'\n"); |
83 | return usage(1); |
84 | } |
85 | if (strlen(fntemplate) + sizeof(PKTFILESUFF) >= sizeof(fntemplate) - 1) { |
86 | fprintf(stderr, "filename too long\n"); |
87 | return usage(1); |
88 | } |
89 | strcat(fntemplate, PKTFILESUFF); |
90 | printf("FNTEMPLATE: '%s'\n", fntemplate); |
91 | |
92 | // register all file formats |
93 | av_register_all(); |
94 | |
95 | err = avformat_open_input(&fctx, argv[1], NULL, NULL); |
96 | if (err < 0) { |
97 | fprintf(stderr, "cannot open input: error %d\n", err); |
98 | return 1; |
99 | } |
100 | |
101 | err = avformat_find_stream_info(fctx, NULL); |
102 | if (err < 0) { |
103 | fprintf(stderr, "avformat_find_stream_info: error %d\n", err); |
104 | return 1; |
105 | } |
106 | |
107 | av_init_packet(&pkt); |
108 | |
109 | while ((err = av_read_frame(fctx, &pkt)) >= 0) { |
110 | int fd; |
111 | snprintf(pktfilename, sizeof(pktfilename), fntemplate, pktnum, |
112 | pkt.stream_index, pkt.pts, pkt.size, |
113 | (pkt.flags & AV_PKT_FLAG_KEY) ? 'K' : '_'); |
114 | printf(PKTFILESUFF "\n", pktnum, pkt.stream_index, pkt.pts, pkt.size, |
115 | (pkt.flags & AV_PKT_FLAG_KEY) ? 'K' : '_'); |
116 | if (!nowrite) { |
117 | fd = open(pktfilename, O_WRONLY | O_CREAT, 0644); |
118 | err = write(fd, pkt.data, pkt.size); |
119 | if (err < 0) { |
120 | fprintf(stderr, "write: error %d\n", err); |
121 | return 1; |
122 | } |
123 | close(fd); |
124 | } |
125 | av_packet_unref(&pkt); |
126 | pktnum++; |
127 | if (maxpkts && (pktnum >= maxpkts)) |
128 | break; |
129 | } |
130 | |
131 | avformat_close_input(&fctx); |
132 | |
133 | while (donotquit) |
134 | av_usleep(60 * 1000000); |
135 | |
136 | return 0; |
137 | } |
138 |