| Line | Branch | Exec | Source |
|---|---|---|---|
| 1 | /* | ||
| 2 | * Filter graphs to bad ASCII-art | ||
| 3 | * Copyright (c) 2012 Nicolas George | ||
| 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 <string.h> | ||
| 23 | |||
| 24 | #include "libavutil/channel_layout.h" | ||
| 25 | #include "libavutil/bprint.h" | ||
| 26 | #include "libavutil/mem.h" | ||
| 27 | #include "libavutil/pixdesc.h" | ||
| 28 | #include "avfilter.h" | ||
| 29 | #include "filters.h" | ||
| 30 | |||
| 31 | ✗ | static int print_link_prop(AVBPrint *buf, AVFilterLink *link) | |
| 32 | { | ||
| 33 | const char *format; | ||
| 34 | AVBPrint dummy_buffer; | ||
| 35 | |||
| 36 | ✗ | if (!buf) { | |
| 37 | ✗ | buf = &dummy_buffer; | |
| 38 | ✗ | av_bprint_init(buf, 0, AV_BPRINT_SIZE_COUNT_ONLY); | |
| 39 | } | ||
| 40 | ✗ | switch (link->type) { | |
| 41 | ✗ | case AVMEDIA_TYPE_VIDEO: | |
| 42 | ✗ | format = av_x_if_null(av_get_pix_fmt_name(link->format), "?"); | |
| 43 | ✗ | av_bprintf(buf, "[%dx%d %d:%d %s]", link->w, link->h, | |
| 44 | link->sample_aspect_ratio.num, | ||
| 45 | link->sample_aspect_ratio.den, | ||
| 46 | format); | ||
| 47 | ✗ | break; | |
| 48 | |||
| 49 | ✗ | case AVMEDIA_TYPE_AUDIO: | |
| 50 | ✗ | format = av_x_if_null(av_get_sample_fmt_name(link->format), "?"); | |
| 51 | ✗ | av_bprintf(buf, "[%dHz %s:", | |
| 52 | (int)link->sample_rate, format); | ||
| 53 | ✗ | av_channel_layout_describe_bprint(&link->ch_layout, buf); | |
| 54 | ✗ | av_bprint_chars(buf, ']', 1); | |
| 55 | ✗ | break; | |
| 56 | |||
| 57 | ✗ | default: | |
| 58 | ✗ | av_bprintf(buf, "?"); | |
| 59 | ✗ | break; | |
| 60 | } | ||
| 61 | ✗ | return buf->len; | |
| 62 | } | ||
| 63 | |||
| 64 | ✗ | static void avfilter_graph_dump_to_buf(AVBPrint *buf, AVFilterGraph *graph) | |
| 65 | { | ||
| 66 | unsigned i, j, x, e; | ||
| 67 | |||
| 68 | ✗ | for (i = 0; i < graph->nb_filters; i++) { | |
| 69 | ✗ | AVFilterContext *filter = graph->filters[i]; | |
| 70 | ✗ | unsigned max_src_name = 0, max_dst_name = 0; | |
| 71 | ✗ | unsigned max_in_name = 0, max_out_name = 0; | |
| 72 | ✗ | unsigned max_in_fmt = 0, max_out_fmt = 0; | |
| 73 | unsigned width, height, in_indent; | ||
| 74 | ✗ | unsigned lname = strlen(filter->name); | |
| 75 | ✗ | unsigned ltype = strlen(filter->filter->name); | |
| 76 | |||
| 77 | ✗ | for (j = 0; j < filter->nb_inputs; j++) { | |
| 78 | ✗ | AVFilterLink *l = filter->inputs[j]; | |
| 79 | ✗ | unsigned ln = strlen(l->src->name) + 1 + strlen(l->srcpad->name); | |
| 80 | ✗ | max_src_name = FFMAX(max_src_name, ln); | |
| 81 | ✗ | max_in_name = FFMAX(max_in_name, strlen(l->dstpad->name)); | |
| 82 | ✗ | max_in_fmt = FFMAX(max_in_fmt, print_link_prop(NULL, l)); | |
| 83 | } | ||
| 84 | ✗ | for (j = 0; j < filter->nb_outputs; j++) { | |
| 85 | ✗ | AVFilterLink *l = filter->outputs[j]; | |
| 86 | ✗ | unsigned ln = strlen(l->dst->name) + 1 + strlen(l->dstpad->name); | |
| 87 | ✗ | max_dst_name = FFMAX(max_dst_name, ln); | |
| 88 | ✗ | max_out_name = FFMAX(max_out_name, strlen(l->srcpad->name)); | |
| 89 | ✗ | max_out_fmt = FFMAX(max_out_fmt, print_link_prop(NULL, l)); | |
| 90 | } | ||
| 91 | ✗ | in_indent = max_src_name + max_in_name + max_in_fmt; | |
| 92 | ✗ | in_indent += in_indent ? 4 : 0; | |
| 93 | ✗ | width = FFMAX(lname + 2, ltype + 4); | |
| 94 | ✗ | height = FFMAX3(2, filter->nb_inputs, filter->nb_outputs); | |
| 95 | ✗ | av_bprint_chars(buf, ' ', in_indent); | |
| 96 | ✗ | av_bprintf(buf, "+"); | |
| 97 | ✗ | av_bprint_chars(buf, '-', width); | |
| 98 | ✗ | av_bprintf(buf, "+\n"); | |
| 99 | ✗ | for (j = 0; j < height; j++) { | |
| 100 | ✗ | unsigned in_no = j - (height - filter->nb_inputs ) / 2; | |
| 101 | ✗ | unsigned out_no = j - (height - filter->nb_outputs) / 2; | |
| 102 | |||
| 103 | /* Input link */ | ||
| 104 | ✗ | if (in_no < filter->nb_inputs) { | |
| 105 | ✗ | AVFilterLink *l = filter->inputs[in_no]; | |
| 106 | ✗ | e = buf->len + max_src_name + 2; | |
| 107 | ✗ | av_bprintf(buf, "%s:%s", l->src->name, l->srcpad->name); | |
| 108 | ✗ | av_bprint_chars(buf, '-', e - buf->len); | |
| 109 | ✗ | e = buf->len + max_in_fmt + 2 + | |
| 110 | ✗ | max_in_name - strlen(l->dstpad->name); | |
| 111 | ✗ | print_link_prop(buf, l); | |
| 112 | ✗ | av_bprint_chars(buf, '-', e - buf->len); | |
| 113 | ✗ | av_bprintf(buf, "%s", l->dstpad->name); | |
| 114 | } else { | ||
| 115 | ✗ | av_bprint_chars(buf, ' ', in_indent); | |
| 116 | } | ||
| 117 | |||
| 118 | /* Filter */ | ||
| 119 | ✗ | av_bprintf(buf, "|"); | |
| 120 | ✗ | if (j == (height - 2) / 2) { | |
| 121 | ✗ | x = (width - lname) / 2; | |
| 122 | ✗ | av_bprintf(buf, "%*s%-*s", x, "", width - x, filter->name); | |
| 123 | ✗ | } else if (j == (height - 2) / 2 + 1) { | |
| 124 | ✗ | x = (width - ltype - 2) / 2; | |
| 125 | ✗ | av_bprintf(buf, "%*s(%s)%*s", x, "", filter->filter->name, | |
| 126 | ✗ | width - ltype - 2 - x, ""); | |
| 127 | } else { | ||
| 128 | ✗ | av_bprint_chars(buf, ' ', width); | |
| 129 | } | ||
| 130 | ✗ | av_bprintf(buf, "|"); | |
| 131 | |||
| 132 | /* Output link */ | ||
| 133 | ✗ | if (out_no < filter->nb_outputs) { | |
| 134 | ✗ | AVFilterLink *l = filter->outputs[out_no]; | |
| 135 | ✗ | unsigned ln = strlen(l->dst->name) + 1 + | |
| 136 | ✗ | strlen(l->dstpad->name); | |
| 137 | ✗ | e = buf->len + max_out_name + 2; | |
| 138 | ✗ | av_bprintf(buf, "%s", l->srcpad->name); | |
| 139 | ✗ | av_bprint_chars(buf, '-', e - buf->len); | |
| 140 | ✗ | e = buf->len + max_out_fmt + 2 + | |
| 141 | ✗ | max_dst_name - ln; | |
| 142 | ✗ | print_link_prop(buf, l); | |
| 143 | ✗ | av_bprint_chars(buf, '-', e - buf->len); | |
| 144 | ✗ | av_bprintf(buf, "%s:%s", l->dst->name, l->dstpad->name); | |
| 145 | } | ||
| 146 | ✗ | av_bprintf(buf, "\n"); | |
| 147 | } | ||
| 148 | ✗ | av_bprint_chars(buf, ' ', in_indent); | |
| 149 | ✗ | av_bprintf(buf, "+"); | |
| 150 | ✗ | av_bprint_chars(buf, '-', width); | |
| 151 | ✗ | av_bprintf(buf, "+\n"); | |
| 152 | ✗ | av_bprintf(buf, "\n"); | |
| 153 | } | ||
| 154 | ✗ | } | |
| 155 | |||
| 156 | ✗ | char *avfilter_graph_dump(AVFilterGraph *graph, const char *options) | |
| 157 | { | ||
| 158 | AVBPrint buf; | ||
| 159 | ✗ | char *dump = NULL; | |
| 160 | |||
| 161 | ✗ | av_bprint_init(&buf, 0, AV_BPRINT_SIZE_COUNT_ONLY); | |
| 162 | ✗ | avfilter_graph_dump_to_buf(&buf, graph); | |
| 163 | ✗ | dump = av_malloc(buf.len + 1); | |
| 164 | ✗ | if (!dump) | |
| 165 | ✗ | return NULL; | |
| 166 | ✗ | av_bprint_init_for_buffer(&buf, dump, buf.len + 1); | |
| 167 | ✗ | avfilter_graph_dump_to_buf(&buf, graph); | |
| 168 | ✗ | return dump; | |
| 169 | } | ||
| 170 |