Mplayer 1.2 源码分析－－main函数

int main(int argc, char *argv[]) {

int opt_exit = 0; ／／标示 MPlayer 在没有播放视频时是否应该退出

int profile_config_loaded; ／／配置文件加载标示

profile_config_loaded = load_profile_config(mconfig, filename);

static int load_profile_config(m_config_t *conf, const char *const file) {
if (file) {
load_per_protocol_config(conf, file);
load_per_extension_config(conf, file);
load_per_file_config(conf, file);
}
return file != NULL;
}

static void load_per_protocol_config(m_config_t *conf, const char *const file) {
char *str;
char protocol[strlen(PROFILE_CFG_PROTOCOL) + strlen(file) + 1];
m_profile_t *p;

/* does filename actually uses a protocol ? */
str = strstr(file, "://");
if (!str)
return;

sprintf(protocol, "%s%s", PROFILE_CFG_PROTOCOL, file);
protocol[strlen(PROFILE_CFG_PROTOCOL) + strlen(file) - strlen(str)] = '\0';
p = m_config_get_profile(conf, protocol);
if (p) {
mp_msg(MSGT_CPLAYER, MSGL_INFO, MSGTR_LoadingProtocolProfile, protocol);
m_config_set_profile(conf, p);
}
}

static void load_per_extension_config(m_config_t *conf, const char *const file) {
char *str;
char extension[strlen(PROFILE_CFG_EXTENSION) + 8];
m_profile_t *p;

/* does filename actually have an extension ? */
str = strrchr(filename, '.');
if (!str)
return;

sprintf(extension, PROFILE_CFG_EXTENSION);
strncat(extension, ++str, 7);
p = m_config_get_profile(conf, extension);
if (p) {
mp_msg(MSGT_CPLAYER, MSGL_INFO, MSGTR_LoadingExtensionProfile, extension);
m_config_set_profile(conf, p);
}
}

static void load_per_file_config(m_config_t *conf, const char *const file) {
char *confpath;
char cfg[PATH_MAX];
const char *name;

if (strlen(file) > PATH_MAX - 14) {
mp_msg(MSGT_CPLAYER, MSGL_WARN, MSGTR_FilenameTooLong);
return;
}
sprintf(cfg, "%s.conf", file);

name = mp_basename(cfg);
if (use_filedir_conf) {
char dircfg[PATH_MAX];
strcpy(dircfg, cfg);
strcpy(dircfg + (name - cfg), "mplayer.conf");
try_load_config(conf, dircfg);

if (try_load_config(conf, cfg))
return;
}

if ((confpath = get_path(name)) != NULL) {
try_load_config(conf, confpath);

free(confpath);
}
}