mirror of
https://github.com/FFmpeg/FFmpeg.git
synced 2024-11-26 19:01:44 +02:00
147 lines
3.9 KiB
C
147 lines
3.9 KiB
C
/*
|
|
* Tee output protocol
|
|
* Copyright (c) 2016 Michael Niedermayer
|
|
*
|
|
* This file is part of FFmpeg.
|
|
*
|
|
* FFmpeg is free software; you can redistribute it and/or
|
|
* modify it under the terms of the GNU Lesser General Public
|
|
* License as published by the Free Software Foundation; either
|
|
* version 2.1 of the License, or (at your option) any later version.
|
|
*
|
|
* FFmpeg is distributed in the hope that it will be useful,
|
|
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
|
|
* Lesser General Public License for more details.
|
|
*
|
|
* You should have received a copy of the GNU Lesser General Public
|
|
* License along with FFmpeg; if not, write to the Free Software
|
|
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
|
|
*/
|
|
|
|
#include "libavutil/avstring.h"
|
|
#include "libavutil/opt.h"
|
|
#include "avformat.h"
|
|
#include "avio_internal.h"
|
|
#include "tee_common.h"
|
|
|
|
typedef struct ChildContext {
|
|
URLContext *url_context;
|
|
} ChildContext;
|
|
|
|
typedef struct TeeContext {
|
|
const AVClass *class;
|
|
int child_count;
|
|
ChildContext *child;
|
|
} TeeContext;
|
|
|
|
static const AVOption tee_options[] = {
|
|
{ NULL }
|
|
};
|
|
|
|
static const AVClass tee_class = {
|
|
.class_name = "tee",
|
|
.item_name = av_default_item_name,
|
|
.option = tee_options,
|
|
.version = LIBAVUTIL_VERSION_INT,
|
|
};
|
|
|
|
static const char *const child_delim = "|";
|
|
|
|
static int tee_write(URLContext *h, const unsigned char *buf, int size)
|
|
{
|
|
TeeContext *c = h->priv_data;
|
|
int i;
|
|
int main_ret = size;
|
|
|
|
for (i=0; i<c->child_count; i++) {
|
|
int ret = ffurl_write(c->child[i].url_context, buf, size);
|
|
if (ret < 0)
|
|
main_ret = ret;
|
|
}
|
|
return main_ret;
|
|
}
|
|
|
|
static int tee_close(URLContext *h)
|
|
{
|
|
TeeContext *c = h->priv_data;
|
|
int i;
|
|
int main_ret = 0;
|
|
|
|
for (i=0; i<c->child_count; i++) {
|
|
int ret = ffurl_closep(&c->child[i].url_context);
|
|
if (ret < 0)
|
|
main_ret = ret;
|
|
}
|
|
|
|
av_freep(&c->child);
|
|
c->child_count = 0;
|
|
return main_ret;
|
|
}
|
|
|
|
static int tee_open(URLContext *h, const char *filename, int flags)
|
|
{
|
|
TeeContext *c = h->priv_data;
|
|
int ret, i;
|
|
|
|
av_strstart(filename, "tee:", &filename);
|
|
|
|
if (flags & AVIO_FLAG_READ)
|
|
return AVERROR(ENOSYS);
|
|
|
|
while (*filename) {
|
|
char *child_string = av_get_token(&filename, child_delim);
|
|
char *child_name = NULL;
|
|
void *tmp;
|
|
AVDictionary *options = NULL;
|
|
if (!child_string) {
|
|
ret = AVERROR(ENOMEM);
|
|
goto fail;
|
|
}
|
|
|
|
tmp = av_realloc_array(c->child, c->child_count + 1, sizeof(*c->child));
|
|
if (!tmp) {
|
|
ret = AVERROR(ENOMEM);
|
|
goto loop_fail;
|
|
}
|
|
c->child = tmp;
|
|
memset(&c->child[c->child_count], 0, sizeof(c->child[c->child_count]));
|
|
|
|
ret = ff_tee_parse_slave_options(h, child_string, &options, &child_name);
|
|
if (ret < 0)
|
|
goto loop_fail;
|
|
|
|
ret = ffurl_open_whitelist(&c->child[c->child_count].url_context, child_name, flags,
|
|
&h->interrupt_callback, &options,
|
|
h->protocol_whitelist, h->protocol_blacklist,
|
|
h);
|
|
loop_fail:
|
|
av_freep(&child_string);
|
|
av_dict_free(&options);
|
|
if (ret < 0)
|
|
goto fail;
|
|
c->child_count++;
|
|
|
|
if (strspn(filename, child_delim))
|
|
filename++;
|
|
}
|
|
|
|
h->is_streamed = 0;
|
|
for (i=0; i<c->child_count; i++) {
|
|
h->is_streamed |= c->child[i].url_context->is_streamed;
|
|
}
|
|
|
|
return 0;
|
|
fail:
|
|
tee_close(h);
|
|
return ret;
|
|
}
|
|
const URLProtocol ff_tee_protocol = {
|
|
.name = "tee",
|
|
.url_open = tee_open,
|
|
.url_write = tee_write,
|
|
.priv_data_size = sizeof(TeeContext),
|
|
.priv_data_class = &tee_class,
|
|
.default_whitelist = "crypto,file,http,https,httpproxy,rtmp,tcp,tls"
|
|
};
|