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| Rev | Author | Line No. | Line |
|---|---|---|---|
| 4349 | Serge | 1 | /* |
| 2 | * Copyright (c) 2012 Anton Khirnov |
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| 3 | * |
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| 4 | * This file is part of FFmpeg. |
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| 5 | * |
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| 6 | * FFmpeg is free software; you can redistribute it and/or |
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| 7 | * modify it under the terms of the GNU Lesser General Public |
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| 8 | * License as published by the Free Software Foundation; either |
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| 9 | * version 2.1 of the License, or (at your option) any later version. |
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| 10 | * |
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| 11 | * FFmpeg is distributed in the hope that it will be useful, |
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| 12 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
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| 13 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
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| 14 | * Lesser General Public License for more details. |
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| 15 | * |
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| 16 | * You should have received a copy of the GNU Lesser General Public |
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| 17 | * License along with FFmpeg; if not, write to the Free Software |
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| 18 | * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA |
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| 19 | */ |
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| 20 | |||
| 21 | /* |
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| 22 | * generate texinfo manpages for avoptions |
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| 23 | */ |
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| 24 | |||
| 25 | #include |
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| 26 | #include |
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| 27 | #include |
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| 28 | |||
| 29 | #include "libavformat/avformat.h" |
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| 30 | #include "libavformat/options_table.h" |
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| 31 | #include "libavcodec/avcodec.h" |
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| 32 | #include "libavcodec/options_table.h" |
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| 33 | #include "libavutil/opt.h" |
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| 34 | |||
| 35 | static void print_usage(void) |
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| 36 | { |
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| 37 | fprintf(stderr, "Usage: enum_options type\n" |
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| 38 | "type: format codec\n"); |
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| 39 | exit(1); |
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| 40 | } |
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| 41 | |||
| 42 | static void print_option(const AVOption *opts, const AVOption *o, int per_stream) |
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| 43 | { |
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| 44 | if (!(o->flags & (AV_OPT_FLAG_DECODING_PARAM | AV_OPT_FLAG_ENCODING_PARAM))) |
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| 45 | return; |
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| 46 | |||
| 47 | printf("@item -%s%s @var{", o->name, per_stream ? "[:stream_specifier]" : ""); |
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| 48 | switch (o->type) { |
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| 49 | case AV_OPT_TYPE_BINARY: printf("hexadecimal string"); break; |
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| 50 | case AV_OPT_TYPE_STRING: printf("string"); break; |
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| 51 | case AV_OPT_TYPE_INT: |
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| 52 | case AV_OPT_TYPE_INT64: printf("integer"); break; |
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| 53 | case AV_OPT_TYPE_FLOAT: |
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| 54 | case AV_OPT_TYPE_DOUBLE: printf("float"); break; |
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| 55 | case AV_OPT_TYPE_RATIONAL: printf("rational number"); break; |
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| 56 | case AV_OPT_TYPE_FLAGS: printf("flags"); break; |
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| 57 | default: printf("value"); break; |
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| 58 | } |
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| 59 | printf("} (@emph{"); |
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| 60 | |||
| 61 | if (o->flags & AV_OPT_FLAG_DECODING_PARAM) { |
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| 62 | printf("input"); |
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| 63 | if (o->flags & AV_OPT_FLAG_ENCODING_PARAM) |
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| 64 | printf("/"); |
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| 65 | } |
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| 66 | if (o->flags & AV_OPT_FLAG_ENCODING_PARAM) printf("output"); |
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| 67 | if (o->flags & AV_OPT_FLAG_AUDIO_PARAM) printf(",audio"); |
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| 68 | if (o->flags & AV_OPT_FLAG_VIDEO_PARAM) printf(",video"); |
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| 69 | if (o->flags & AV_OPT_FLAG_SUBTITLE_PARAM) printf(",subtitles"); |
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| 70 | |||
| 71 | printf("})\n"); |
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| 72 | if (o->help) |
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| 73 | printf("%s\n", o->help); |
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| 74 | |||
| 75 | if (o->unit) { |
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| 76 | const AVOption *u; |
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| 77 | printf("\nPossible values:\n@table @samp\n"); |
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| 78 | |||
| 79 | for (u = opts; u->name; u++) { |
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| 80 | if (u->type == AV_OPT_TYPE_CONST && u->unit && !strcmp(u->unit, o->unit)) |
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| 81 | printf("@item %s\n%s\n", u->name, u->help ? u->help : ""); |
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| 82 | } |
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| 83 | printf("@end table\n"); |
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| 84 | } |
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| 85 | } |
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| 86 | |||
| 87 | static void show_opts(const AVOption *opts, int per_stream) |
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| 88 | { |
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| 89 | const AVOption *o; |
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| 90 | |||
| 91 | printf("@table @option\n"); |
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| 92 | for (o = opts; o->name; o++) { |
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| 93 | if (o->type != AV_OPT_TYPE_CONST) |
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| 94 | print_option(opts, o, per_stream); |
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| 95 | } |
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| 96 | printf("@end table\n"); |
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| 97 | } |
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| 98 | |||
| 99 | static void show_format_opts(void) |
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| 100 | { |
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| 101 | printf("@section Format AVOptions\n"); |
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| 102 | show_opts(avformat_options, 0); |
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| 103 | } |
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| 104 | |||
| 105 | static void show_codec_opts(void) |
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| 106 | { |
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| 107 | printf("@section Codec AVOptions\n"); |
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| 108 | show_opts(avcodec_options, 1); |
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| 109 | } |
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| 110 | |||
| 111 | int main(int argc, char **argv) |
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| 112 | { |
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| 113 | if (argc < 2) |
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| 114 | print_usage(); |
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| 115 | |||
| 116 | printf("@c DO NOT EDIT THIS FILE!\n" |
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| 117 | "@c It was generated by print_options.\n\n"); |
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| 118 | if (!strcmp(argv[1], "format")) |
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| 119 | show_format_opts(); |
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| 120 | else if (!strcmp(argv[1], "codec")) |
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| 121 | show_codec_opts(); |
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| 122 | else |
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| 123 | print_usage(); |
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| 124 | |||
| 125 | return 0; |
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| 126 | } |