static int url_alloc_for_protocol (URLContext **puc, struct URLProtocol *up, const char *filename, int flags, const AVIOInterruptCB *int_cb) { URLContext *uc; int err; #if CONFIG_NETWORK if (up->flags & URL_PROTOCOL_FLAG_NETWORK && !ff_network_init()) return AVERROR(EIO); #endif if ((flags & AVIO_FLAG_READ) && !up->url_read) { av_log(NULL, AV_LOG_ERROR, "Impossible to open the '%s' protocol for reading\n", up->name); return AVERROR(EIO); if ((flags & AVIO_FLAG_WRITE) && !up->url_write) { av_log(NULL, AV_LOG_ERROR, "Impossible to open the '%s' protocol for writing\n", up->name); return AVERROR(EIO); uc = av_mallocz(sizeof(URLContext) + strlen(filename) + 1); if (!uc) { uc->av_class = &ffurl_context_class; uc->filename = (char *) &uc[1]; strcpy(uc->filename, filename); uc->prot = up; uc->flags = flags; uc->is_streamed = 0; /* default = not streamed */ uc->max_packet_size = 0; /* default: stream file */ if (up->priv_data_size) { uc->priv_data = av_mallocz(up->priv_data_size); if (up->priv_data_class) { int proto_len= strlen(up->name); char *start = strchr(uc->filename, ','); *(const AVClass**)uc->priv_data = up->priv_data_class; av_opt_set_defaults(uc->priv_data); if(!strncmp(up->name, uc->filename, proto_len) && uc->filename + proto_len == start){ int ret= 0; char *p= start; char sep= *++p; char *key, *val; p++; while(ret >= 0 && (key= strchr(p, sep)) && p<key && (val = strchr(key+1, sep))){ *val= *key= 0; ret= av_opt_set(uc->priv_data, p, key+1, 0); if (ret == AVERROR_OPTION_NOT_FOUND) av_log(uc, AV_LOG_ERROR, "Key '%s' not found.\n", p); *val= *key= sep; p= val+1; if(ret<0 || p!=key){ av_log(uc, AV_LOG_ERROR, "Error parsing options string %s\n", start); av_freep(&uc->priv_data); av_freep(&uc); err = AVERROR(EINVAL); memmove(start, key+1, strlen(key)); if (int_cb) uc->interrupt_callback = *int_cb; *puc = uc; return 0; fail: *puc = NULL; if (uc) av_freep(&uc->priv_data); av_freep(&uc); #if CONFIG_NETWORK if (up->flags & URL_PROTOCOL_FLAG_NETWORK) ff_network_close(); #endif return err;