mirror of
https://github.com/Laex/Delphi-OpenCV.git
synced 2024-11-18 01:05:53 +01:00
64 lines
1.8 KiB
ObjectPascal
64 lines
1.8 KiB
ObjectPascal
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program metadata;
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{$APPTYPE CONSOLE}
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{$R *.res}
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{$include ffmpeg.inc}
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uses
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System.SysUtils,
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ffmpeglib in '..\..\ffmpeglib.pas',
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libavcodec.avcodec in '..\..\libavcodec\libavcodec.avcodec.pas',
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ctypes in '..\..\..\ctypes\ctypes.pas',
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avformat in '..\..\libavformat\avformat.pas',
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avio in '..\..\libavformat\avio.pas',
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avutil in '..\..\libavutil\avutil.pas',
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buffer in '..\..\libavutil\buffer.pas',
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dict in '..\..\libavutil\dict.pas',
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frame in '..\..\libavutil\frame.pas',
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log in '..\..\libavutil\log.pas',
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opt in '..\..\libavutil\opt.pas',
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pixfmt in '..\..\libavutil\pixfmt.pas',
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rational in '..\..\libavutil\rational.pas',
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samplefmt in '..\..\libavutil\samplefmt.pas',
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parseutils in '..\..\libavutil\parseutils.pas',
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swscale in '..\..\libswscale\swscale.pas',
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pixdesc in '..\..\libavutil\pixdesc.pas',
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imgutils in '..\..\libavutil\imgutils.pas',
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mem in '..\..\libavutil\mem.pas',
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error in '..\..\libavutil\error.pas';
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Var
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fmt_ctx: pAVFormatContext = nil;
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tag: pAVDictionaryEntry = Nil;
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ret: Integer;
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inp : AnsiString;
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begin
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try
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if (ParamCount <> 1) then
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begin
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Writeln(Format('usage: %s <input_file>'#13#10 + 'example program to demonstrate the use of the libavformat metadata API.'#13#10,
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[ExtractFileName(ParamStr(0))]));
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Halt(1)
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end;
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av_register_all();
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inp:=ParamStr(1);
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ret := avformat_open_input(fmt_ctx, PAnsiChar(inp), nil, nil);
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if ret < 0 then
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Halt(ret);
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tag := av_dict_get(fmt_ctx^.metadata, '', tag, AV_DICT_IGNORE_SUFFIX);
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while Assigned(tag) do
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begin
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Writeln(Format('%s = %s'#13#10, [tag^.key, tag^.value]));
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tag := av_dict_get(fmt_ctx^.metadata, '', tag, AV_DICT_IGNORE_SUFFIX);
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end;
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avformat_close_input(fmt_ctx);
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except
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on E: Exception do
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Writeln(E.ClassName, ': ', E.Message);
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end;
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end.
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