pixelformat.h

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#pragma once
 
#include <string>
#include <iostream>
 
#include "averror.h"
#include "ffmpeg.h"
 
extern "C" {
#include <libavutil/pixfmt.h>
#include <libavutil/pixdesc.h>
}
 
// We need not to be back compatible:
#ifdef PixelFormat
#undef PixelFormat
#endif
 
namespace av {
 
class PixelFormat : public PixSampleFmtWrapper<PixelFormat, AVPixelFormat>
{
public:
    using Parent = PixSampleFmtWrapper<PixelFormat, AVPixelFormat>;
    using Parent::Parent;
 
    PixelFormat() = default;
    explicit PixelFormat(const char* name) noexcept;
    explicit PixelFormat(const std::string& name) noexcept;
 
    // Info functions
    const char* name(OptionalErrorCode ec = throws()) const;
 
    const AVPixFmtDescriptor* descriptor(OptionalErrorCode ec = throws()) const;
 
    int bitsPerPixel(OptionalErrorCode ec = throws()) const;
 
    size_t planesCount(OptionalErrorCode ec = throws()) const;
 
    PixelFormat swapEndianness() const noexcept;
 
    // See FF_LOSS_xxx flags
    size_t convertionLoss(PixelFormat dstFmt, bool srcHasAlpha = false) const noexcept;
};
 
} // namespace av