23 #undef HAVE_AV_CONFIG_H
30 printf(
"Convert a libavfilter graph to a dot file\n");
31 printf(
"Usage: graph2dot [OPTIONS]\n");
34 "-i INFILE set INFILE as input file, stdin if omitted\n"
35 "-o OUTFILE set OUTFILE as output file, stdout if omitted\n"
36 "-h print this help\n");
48 fprintf(outfile,
"digraph G {\n");
49 fprintf(outfile,
"node [shape=box]\n");
50 fprintf(outfile,
"rankdir=LR\n");
53 char filter_ctx_label[128];
56 snprintf(filter_ctx_label,
sizeof(filter_ctx_label),
"%s (%s)",
63 char dst_filter_ctx_label[128];
66 snprintf(dst_filter_ctx_label,
sizeof(dst_filter_ctx_label),
"%s (%s)",
70 fprintf(outfile,
"\"%s\" -> \"%s\"", filter_ctx_label, dst_filter_ctx_label);
72 fprintf(outfile,
" [ label= \"fmt:%s w:%d h:%d tb:%d/%d\" ]",
78 fprintf(outfile,
" [ label= \"fmt:%s sr:%"PRId64
" cl:%s\" ]",
89 int main(
int argc,
char **argv)
91 const char *outfilename =
NULL;
92 const char *infilename =
NULL;
95 char *graph_string =
NULL;
101 while ((c = getopt(argc, argv,
"hi:o:")) != -1) {
110 outfilename = optarg;
117 if (!infilename || !strcmp(infilename,
"-"))
118 infilename =
"/dev/stdin";
119 infile = fopen(infilename,
"r");
121 fprintf(stderr,
"Impossible to open input file '%s': %s\n", infilename, strerror(errno));
125 if (!outfilename || !strcmp(outfilename,
"-"))
126 outfilename =
"/dev/stdout";
127 outfile = fopen(outfilename,
"w");
129 fprintf(stderr,
"Impossible to open output file '%s': %s\n", outfilename, strerror(errno));
135 unsigned int count = 0;
136 struct line *
line, *last_line, *first_line;
138 last_line = first_line =
av_malloc(
sizeof(
struct line));
140 while (fgets(last_line->
data,
sizeof(last_line->
data), infile)) {
141 struct line *new_line =
av_malloc(
sizeof(
struct line));
142 count += strlen(last_line->
data);
143 last_line->
next = new_line;
144 last_line = new_line;
150 for (line = first_line; line->
next; line = line->
next) {
151 unsigned int l = strlen(line->
data);
152 memcpy(p, line->
data, l);
161 fprintf(stderr,
"Impossible to parse the graph description\n");