filtergraph.h

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#pragma once
 
#include <map>
#include <memory>
 
#include "ffmpeg.h"
#include "filtercontext.h"
#include "buffersink.h"
#include "buffersrc.h"
 
#include "averror.h"
 
#if AVCPP_HAS_AVFILTER
 
namespace av {
 
class FilterGraph : FFWrapperPtr<AVFilterGraph>
{
    friend class FilterInOut;
 
public:
    FilterGraph();
    FilterGraph(decltype(nullptr));
    ~FilterGraph();
 
    FilterGraph(const FilterGraph&) = delete;
    void operator=(const FilterGraph&) = delete;
 
    // Context getters/setters
    bool        isValid();
    //void        setScaleSwsOptions(const std::string& opts);
    int         filtersCount() const;
    void        setAutoConvert(unsigned flags);
 
    // Public API
 
    FilterContext filter(const std::string& name, OptionalErrorCode ec = throws());
    FilterContext filter(unsigned idx, OptionalErrorCode ec = throws());
 
    FilterContext allocFilter(const Filter &filter, const std::string &name, OptionalErrorCode ec = throws());
    FilterContext createFilter(const Filter &filter,
                               const std::string& filterName,
                               const std::string& filterArgs,
                               OptionalErrorCode ec = throws());
 
    void parse(const std::string &graphDescription,
               FilterContext     &srcFilterCtx,
               FilterContext     &sinkFilterCtx,
               OptionalErrorCode  ec = throws());
 
    void parse(const std::string &graphDescription, OptionalErrorCode  ec = throws());
 
    void config(OptionalErrorCode ec = throws());
 
    std::string dump(bool doPrint = true, const std::string& options = std::string());
 
    BufferSrcFilterContext  bufferSrcFilter(OptionalErrorCode ec = throws());
    BufferSinkFilterContext bufferSinkFilter(OptionalErrorCode ec = throws());
 
 
private:
 
private:
 
    BufferSrcFilterContext  m_bufferSrc;
    bool                    m_bufferSrcSearchDone = false;
    BufferSinkFilterContext m_bufferSink;
    bool                    m_bufferSinkSearchDone = false;
 
    bool m_configured = false;
};
 
} // namespace av
 
#endif // if AVCPP_HAS_AVFILTER