C++ (Cpp) Filter::isNull Exemples

Exemple #1

Fichier : filtergraph.cpp Projet : brucechase/avcpp

FilterContext FilterGraph::createFilter(const Filter &filter, const string &filterName, const string &filterArgs, error_code &ec)
{
    clear_if(ec);
    if (!m_raw || filter.isNull()) {
        throws_if(ec, Errors::Unallocated);
        return FilterContext();
    }

    AVFilterContext *ctx = nullptr;

    int stat = avfilter_graph_create_filter(&ctx,
                                            filter.raw(),
                                            filterName.c_str(),
                                            filterArgs.empty() ? nullptr : filterArgs.c_str(),
                                            this,
                                            m_raw);
    if (stat < 0) {
        throws_if(ec, stat, ffmpeg_category());
        return FilterContext();
    }

    return FilterContext(ctx);
}