| Line | Branch | Exec | Source |
|---|---|---|---|
| 1 | /* | ||
| 2 | * Tee output protocol | ||
| 3 | * Copyright (c) 2016 Michael Niedermayer | ||
| 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/avstring.h" | ||
| 25 | #include "libavutil/dict.h" | ||
| 26 | #include "libavutil/error.h" | ||
| 27 | #include "libavutil/mem.h" | ||
| 28 | #include "tee_common.h" | ||
| 29 | #include "url.h" | ||
| 30 | |||
| 31 | typedef struct ChildContext { | ||
| 32 | URLContext *url_context; | ||
| 33 | } ChildContext; | ||
| 34 | |||
| 35 | typedef struct TeeContext { | ||
| 36 | int child_count; | ||
| 37 | ChildContext *child; | ||
| 38 | } TeeContext; | ||
| 39 | |||
| 40 | static const char *const child_delim = "|"; | ||
| 41 | |||
| 42 | ✗ | static int tee_write(URLContext *h, const unsigned char *buf, int size) | |
| 43 | { | ||
| 44 | ✗ | TeeContext *c = h->priv_data; | |
| 45 | int i; | ||
| 46 | ✗ | int main_ret = size; | |
| 47 | |||
| 48 | ✗ | for (i=0; i<c->child_count; i++) { | |
| 49 | ✗ | int ret = ffurl_write(c->child[i].url_context, buf, size); | |
| 50 | ✗ | if (ret < 0) | |
| 51 | ✗ | main_ret = ret; | |
| 52 | } | ||
| 53 | ✗ | return main_ret; | |
| 54 | } | ||
| 55 | |||
| 56 | ✗ | static int tee_close(URLContext *h) | |
| 57 | { | ||
| 58 | ✗ | TeeContext *c = h->priv_data; | |
| 59 | int i; | ||
| 60 | ✗ | int main_ret = 0; | |
| 61 | |||
| 62 | ✗ | for (i=0; i<c->child_count; i++) { | |
| 63 | ✗ | int ret = ffurl_closep(&c->child[i].url_context); | |
| 64 | ✗ | if (ret < 0) | |
| 65 | ✗ | main_ret = ret; | |
| 66 | } | ||
| 67 | |||
| 68 | ✗ | av_freep(&c->child); | |
| 69 | ✗ | c->child_count = 0; | |
| 70 | ✗ | return main_ret; | |
| 71 | } | ||
| 72 | |||
| 73 | ✗ | static int tee_open(URLContext *h, const char *filename, int flags) | |
| 74 | { | ||
| 75 | ✗ | TeeContext *c = h->priv_data; | |
| 76 | int ret, i; | ||
| 77 | |||
| 78 | ✗ | av_strstart(filename, "tee:", &filename); | |
| 79 | |||
| 80 | ✗ | while (*filename) { | |
| 81 | ✗ | char *child_string = av_get_token(&filename, child_delim); | |
| 82 | ✗ | char *child_name = NULL; | |
| 83 | void *tmp; | ||
| 84 | ✗ | AVDictionary *options = NULL; | |
| 85 | ✗ | if (!child_string) { | |
| 86 | ✗ | ret = AVERROR(ENOMEM); | |
| 87 | ✗ | goto fail; | |
| 88 | } | ||
| 89 | |||
| 90 | ✗ | tmp = av_realloc_array(c->child, c->child_count + 1, sizeof(*c->child)); | |
| 91 | ✗ | if (!tmp) { | |
| 92 | ✗ | ret = AVERROR(ENOMEM); | |
| 93 | ✗ | goto loop_fail; | |
| 94 | } | ||
| 95 | ✗ | c->child = tmp; | |
| 96 | ✗ | memset(&c->child[c->child_count], 0, sizeof(c->child[c->child_count])); | |
| 97 | |||
| 98 | ✗ | ret = ff_tee_parse_slave_options(h, child_string, &options, &child_name); | |
| 99 | ✗ | if (ret < 0) | |
| 100 | ✗ | goto loop_fail; | |
| 101 | |||
| 102 | ✗ | ret = ffurl_open_whitelist(&c->child[c->child_count].url_context, child_name, flags, | |
| 103 | ✗ | &h->interrupt_callback, &options, | |
| 104 | h->protocol_whitelist, h->protocol_blacklist, | ||
| 105 | h); | ||
| 106 | ✗ | loop_fail: | |
| 107 | ✗ | av_freep(&child_string); | |
| 108 | ✗ | av_dict_free(&options); | |
| 109 | ✗ | if (ret < 0) | |
| 110 | ✗ | goto fail; | |
| 111 | ✗ | c->child_count++; | |
| 112 | |||
| 113 | ✗ | if (strspn(filename, child_delim)) | |
| 114 | ✗ | filename++; | |
| 115 | } | ||
| 116 | |||
| 117 | ✗ | h->is_streamed = 0; | |
| 118 | ✗ | for (i=0; i<c->child_count; i++) { | |
| 119 | ✗ | h->is_streamed |= c->child[i].url_context->is_streamed; | |
| 120 | } | ||
| 121 | |||
| 122 | ✗ | h->max_packet_size = 0; | |
| 123 | ✗ | for (i = 0; i < c->child_count; i++) { | |
| 124 | ✗ | int max = c->child[i].url_context->max_packet_size; | |
| 125 | ✗ | if (!max) | |
| 126 | ✗ | continue; | |
| 127 | |||
| 128 | ✗ | if (!h->max_packet_size) | |
| 129 | ✗ | h->max_packet_size = max; | |
| 130 | ✗ | else if (h->max_packet_size > max) | |
| 131 | ✗ | h->max_packet_size = max; | |
| 132 | } | ||
| 133 | |||
| 134 | ✗ | return 0; | |
| 135 | ✗ | fail: | |
| 136 | ✗ | tee_close(h); | |
| 137 | ✗ | return ret; | |
| 138 | } | ||
| 139 | const URLProtocol ff_tee_protocol = { | ||
| 140 | .name = "tee", | ||
| 141 | .url_open = tee_open, | ||
| 142 | .url_write = tee_write, | ||
| 143 | .url_close = tee_close, | ||
| 144 | .priv_data_size = sizeof(TeeContext), | ||
| 145 | .default_whitelist = "crypto,file,http,https,httpproxy,rtmp,tcp,tls" | ||
| 146 | }; | ||
| 147 |