mirror of
https://github.com/Laex/Delphi-OpenCV.git
synced 2024-11-18 01:05:53 +01:00
67 lines
1.3 KiB
ObjectPascal
67 lines
1.3 KiB
ObjectPascal
program metadata;
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{$APPTYPE CONSOLE}
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{$R *.res}
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{$i ffmpeg.inc}
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uses
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System.SysUtils,
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ffm.lib,
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ffm.libavcodec.avcodec,
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ffm.ctypes,
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ffm.avformat,
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ffm.avio,
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ffm.avutil,
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ffm.buffer,
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ffm.dict,
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ffm.frame,
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ffm.log,
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ffm.opt,
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ffm.pixfmt,
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ffm.rational,
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ffm.samplefmt,
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ffm.parseutils,
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ffm.swscale,
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ffm.pixdesc,
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ffm.imgutils,
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ffm.mem,
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ffm.error,
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uResourcePaths;
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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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const
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std_filename = cResourceMedia + 'trailer.avi';
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begin
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try
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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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if (ParamCount < 1) then
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inp := std_filename
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else
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inp := ParamStr(1);
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av_register_all();
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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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