LCOV - code coverage report
Current view: top level - libavformat - teeproto.c (source / functions) Hit Total Coverage
Test: coverage.info Lines: 0 56 0.0 %
Date: 2017-12-16 01:21:47 Functions: 0 3 0.0 %

          Line data    Source code
       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 "libavutil/avstring.h"
      23             : #include "libavutil/opt.h"
      24             : #include "avformat.h"
      25             : #include "avio_internal.h"
      26             : #include "tee_common.h"
      27             : 
      28             : typedef struct ChildContext {
      29             :     URLContext *url_context;
      30             : } ChildContext;
      31             : 
      32             : typedef struct TeeContext {
      33             :     const AVClass *class;
      34             :     int child_count;
      35             :     ChildContext *child;
      36             : } TeeContext;
      37             : 
      38             : static const AVOption tee_options[] = {
      39             :     { NULL }
      40             : };
      41             : 
      42             : static const AVClass tee_class = {
      43             :     .class_name = "tee",
      44             :     .item_name  = av_default_item_name,
      45             :     .option     = tee_options,
      46             :     .version    = LIBAVUTIL_VERSION_INT,
      47             : };
      48             : 
      49             : static const char *const child_delim = "|";
      50             : 
      51           0 : static int tee_write(URLContext *h, const unsigned char *buf, int size)
      52             : {
      53           0 :     TeeContext *c = h->priv_data;
      54             :     int i;
      55           0 :     int main_ret = size;
      56             : 
      57           0 :     for (i=0; i<c->child_count; i++) {
      58           0 :         int ret = ffurl_write(c->child[i].url_context, buf, size);
      59           0 :         if (ret < 0)
      60           0 :             main_ret = ret;
      61             :     }
      62           0 :     return main_ret;
      63             : }
      64             : 
      65           0 : static int tee_close(URLContext *h)
      66             : {
      67           0 :     TeeContext *c = h->priv_data;
      68             :     int i;
      69           0 :     int main_ret = 0;
      70             : 
      71           0 :     for (i=0; i<c->child_count; i++) {
      72           0 :         int ret = ffurl_closep(&c->child[i].url_context);
      73           0 :         if (ret < 0)
      74           0 :             main_ret = ret;
      75             :     }
      76             : 
      77           0 :     av_freep(&c->child);
      78           0 :     c->child_count = 0;
      79           0 :     return main_ret;
      80             : }
      81             : 
      82           0 : static int tee_open(URLContext *h, const char *filename, int flags)
      83             : {
      84           0 :     TeeContext *c = h->priv_data;
      85             :     int ret, i;
      86             : 
      87           0 :     av_strstart(filename, "tee:", &filename);
      88             : 
      89           0 :     if (flags & AVIO_FLAG_READ)
      90           0 :         return AVERROR(ENOSYS);
      91             : 
      92           0 :     while (*filename) {
      93           0 :         char *child_string = av_get_token(&filename, child_delim);
      94           0 :         char *child_name = NULL;
      95             :         void *tmp;
      96           0 :         AVDictionary *options = NULL;
      97           0 :         if (!child_string) {
      98           0 :             ret = AVERROR(ENOMEM);
      99           0 :             goto fail;
     100             :         }
     101             : 
     102           0 :         tmp = av_realloc_array(c->child, c->child_count + 1, sizeof(*c->child));
     103           0 :         if (!tmp) {
     104           0 :             ret = AVERROR(ENOMEM);
     105           0 :             goto loop_fail;
     106             :         }
     107           0 :         c->child = tmp;
     108           0 :         memset(&c->child[c->child_count], 0, sizeof(c->child[c->child_count]));
     109             : 
     110           0 :         ret = ff_tee_parse_slave_options(h, child_string, &options, &child_name);
     111           0 :         if (ret < 0)
     112           0 :             goto loop_fail;
     113             : 
     114           0 :         ret = ffurl_open_whitelist(&c->child[c->child_count].url_context, child_name, flags,
     115           0 :                                    &h->interrupt_callback, &options,
     116             :                                    h->protocol_whitelist, h->protocol_blacklist,
     117             :                                    h);
     118           0 : loop_fail:
     119           0 :         av_freep(&child_string);
     120           0 :         av_dict_free(&options);
     121           0 :         if (ret < 0)
     122           0 :             goto fail;
     123           0 :         c->child_count++;
     124             : 
     125           0 :         if (strspn(filename, child_delim))
     126           0 :             filename++;
     127             :     }
     128             : 
     129           0 :     h->is_streamed = 0;
     130           0 :     for (i=0; i<c->child_count; i++) {
     131           0 :         h->is_streamed |= c->child[i].url_context->is_streamed;
     132             :     }
     133             : 
     134           0 :     return 0;
     135           0 : fail:
     136           0 :     tee_close(h);
     137           0 :     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             :     .priv_data_class     = &tee_class,
     146             :     .default_whitelist   = "crypto,file,http,https,httpproxy,rtmp,tcp,tls"
     147             : };

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