Details | Last modification | View Log | RSS feed
| Rev | Author | Line No. | Line |
|---|---|---|---|
| 4349 | Serge | 1 | /* |
| 2 | * SSA/ASS common functions |
||
| 3 | * Copyright (c) 2010 Aurelien Jacobs |
||
| 4 | * |
||
| 5 | * This file is part of FFmpeg. |
||
| 6 | * |
||
| 7 | * FFmpeg is free software; you can redistribute it and/or |
||
| 8 | * modify it under the terms of the GNU Lesser General Public |
||
| 9 | * License as published by the Free Software Foundation; either |
||
| 10 | * version 2.1 of the License, or (at your option) any later version. |
||
| 11 | * |
||
| 12 | * FFmpeg is distributed in the hope that it will be useful, |
||
| 13 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
||
| 14 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
||
| 15 | * Lesser General Public License for more details. |
||
| 16 | * |
||
| 17 | * You should have received a copy of the GNU Lesser General Public |
||
| 18 | * License along with FFmpeg; if not, write to the Free Software |
||
| 19 | * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA |
||
| 20 | */ |
||
| 21 | |||
| 22 | #include "avcodec.h" |
||
| 23 | #include "ass.h" |
||
| 24 | #include "libavutil/avassert.h" |
||
| 25 | #include "libavutil/avstring.h" |
||
| 26 | #include "libavutil/bprint.h" |
||
| 27 | #include "libavutil/common.h" |
||
| 28 | |||
| 29 | int ff_ass_subtitle_header(AVCodecContext *avctx, |
||
| 30 | const char *font, int font_size, |
||
| 31 | int color, int back_color, |
||
| 32 | int bold, int italic, int underline, |
||
| 33 | int alignment) |
||
| 34 | { |
||
| 35 | avctx->subtitle_header = av_asprintf( |
||
| 36 | "[Script Info]\r\n" |
||
| 37 | "ScriptType: v4.00+\r\n" |
||
| 38 | "\r\n" |
||
| 39 | "[V4+ Styles]\r\n" |
||
| 40 | "Format: Name, Fontname, Fontsize, PrimaryColour, SecondaryColour, OutlineColour, BackColour, Bold, Italic, Underline, BorderStyle, Outline, Shadow, Alignment, MarginL, MarginR, MarginV, AlphaLevel, Encoding\r\n" |
||
| 41 | "Style: Default,%s,%d,&H%x,&H%x,&H%x,&H%x,%d,%d,%d,1,1,0,%d,10,10,10,0,0\r\n" |
||
| 42 | "\r\n" |
||
| 43 | "[Events]\r\n" |
||
| 44 | "Format: Layer, Start, End, Style, Text\r\n", |
||
| 45 | font, font_size, color, color, back_color, back_color, |
||
| 46 | -bold, -italic, -underline, alignment); |
||
| 47 | |||
| 48 | if (!avctx->subtitle_header) |
||
| 49 | return AVERROR(ENOMEM); |
||
| 50 | avctx->subtitle_header_size = strlen(avctx->subtitle_header); |
||
| 51 | return 0; |
||
| 52 | } |
||
| 53 | |||
| 54 | int ff_ass_subtitle_header_default(AVCodecContext *avctx) |
||
| 55 | { |
||
| 56 | return ff_ass_subtitle_header(avctx, ASS_DEFAULT_FONT, |
||
| 57 | ASS_DEFAULT_FONT_SIZE, |
||
| 58 | ASS_DEFAULT_COLOR, |
||
| 59 | ASS_DEFAULT_BACK_COLOR, |
||
| 60 | ASS_DEFAULT_BOLD, |
||
| 61 | ASS_DEFAULT_ITALIC, |
||
| 62 | ASS_DEFAULT_UNDERLINE, |
||
| 63 | ASS_DEFAULT_ALIGNMENT); |
||
| 64 | } |
||
| 65 | |||
| 66 | static void insert_ts(AVBPrint *buf, int ts) |
||
| 67 | { |
||
| 68 | if (ts == -1) { |
||
| 69 | av_bprintf(buf, "9:59:59.99,"); |
||
| 70 | } else { |
||
| 71 | int h, m, s; |
||
| 72 | |||
| 73 | h = ts/360000; ts -= 360000*h; |
||
| 74 | m = ts/ 6000; ts -= 6000*m; |
||
| 75 | s = ts/ 100; ts -= 100*s; |
||
| 76 | av_bprintf(buf, "%d:%02d:%02d.%02d,", h, m, s, ts); |
||
| 77 | } |
||
| 78 | } |
||
| 79 | |||
| 80 | int ff_ass_add_rect(AVSubtitle *sub, const char *dialog, |
||
| 81 | int ts_start, int duration, int raw) |
||
| 82 | { |
||
| 83 | AVBPrint buf; |
||
| 84 | int ret, dlen; |
||
| 85 | AVSubtitleRect **rects; |
||
| 86 | |||
| 87 | av_bprint_init(&buf, 0, AV_BPRINT_SIZE_UNLIMITED); |
||
| 88 | if (!raw || raw == 2) { |
||
| 89 | long int layer = 0; |
||
| 90 | |||
| 91 | if (raw == 2) { |
||
| 92 | /* skip ReadOrder */ |
||
| 93 | dialog = strchr(dialog, ','); |
||
| 94 | if (!dialog) |
||
| 95 | return AVERROR_INVALIDDATA; |
||
| 96 | dialog++; |
||
| 97 | |||
| 98 | /* extract Layer or Marked */ |
||
| 99 | layer = strtol(dialog, (char**)&dialog, 10); |
||
| 100 | if (*dialog != ',') |
||
| 101 | return AVERROR_INVALIDDATA; |
||
| 102 | dialog++; |
||
| 103 | } |
||
| 104 | av_bprintf(&buf, "Dialogue: %ld,", layer); |
||
| 105 | insert_ts(&buf, ts_start); |
||
| 106 | insert_ts(&buf, duration == -1 ? -1 : ts_start + duration); |
||
| 107 | if (raw != 2) |
||
| 108 | av_bprintf(&buf, "Default,"); |
||
| 109 | } |
||
| 110 | |||
| 111 | dlen = strcspn(dialog, "\n"); |
||
| 112 | dlen += dialog[dlen] == '\n'; |
||
| 113 | |||
| 114 | av_bprintf(&buf, "%.*s", dlen, dialog); |
||
| 115 | if (raw == 2) |
||
| 116 | av_bprintf(&buf, "\r\n"); |
||
| 117 | if (!av_bprint_is_complete(&buf)) |
||
| 118 | return AVERROR(ENOMEM); |
||
| 119 | |||
| 120 | rects = av_realloc(sub->rects, (sub->num_rects+1) * sizeof(*sub->rects)); |
||
| 121 | if (!rects) |
||
| 122 | return AVERROR(ENOMEM); |
||
| 123 | sub->rects = rects; |
||
| 124 | sub->end_display_time = FFMAX(sub->end_display_time, 10 * duration); |
||
| 125 | rects[sub->num_rects] = av_mallocz(sizeof(*rects[0])); |
||
| 126 | rects[sub->num_rects]->type = SUBTITLE_ASS; |
||
| 127 | ret = av_bprint_finalize(&buf, &rects[sub->num_rects]->ass); |
||
| 128 | if (ret < 0) |
||
| 129 | return ret; |
||
| 130 | sub->num_rects++; |
||
| 131 | return dlen; |
||
| 132 | } |