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45 lines
1.4 KiB
45 lines
1.4 KiB
#pragma once
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#include "av_base.hpp"
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extern "C" {
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#include <libavutil/pixfmt.h>
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typedef struct AVDictionary AVDictionary;
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typedef struct AVFormatContext AVFormatContext;
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typedef struct AVInputFormat AVInputFormat;
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typedef struct AVCodecContext AVCodecContext;
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typedef struct AVCodec AVCodec;
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typedef struct AVPacket AVPacket;
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typedef struct AVFrame AVFrame;
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}
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#include <memory>
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namespace av {
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// AVFormatContext related
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using format_context = av::unique_ptr<AVFormatContext>;
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format_context format_open_input(std::string const & filename, AVInputFormat* format, AVDictionary** options);
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format_context format_alloc_context();
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// AVCodec related
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using open_codec = av::unique_ptr<AVCodecContext>;
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open_codec codec_open(AVCodecContext* ctx, AVCodec* codec, AVDictionary** options);
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// AVPacket related (this is somewhat strange, but matches the usecase)
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// I need to rethink this
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using packet_buffer = AVPacket;
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using packet = av::unique_ptr<AVPacket>;
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packet read_frame(format_context & ctx, packet_buffer & p);
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// AVFrame related
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using frame = av::unique_ptr<AVFrame>;
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frame frame_alloc();
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frame frame_clone(frame const & f); // creates a clone with the *same* buffer
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AVPixelFormat get_format(frame const & f);
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// Does not copy data, it acts as a view
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void crop(frame & f, int left, int top, int width, int height);
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frame crop(frame && f, int left, int top, int width, int height);
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frame crop(frame const & f, int left, int top, int width, int height);
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}
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