mirror of
https://github.com/owntone/owntone-server.git
synced 2024-12-30 09:03:23 -05:00
140 lines
2.8 KiB
C
140 lines
2.8 KiB
C
/*
|
|
* Copyright (C) 2011 Julien BLACHE <jb@jblache.org>
|
|
*
|
|
* This program is free software; you can redistribute it and/or modify
|
|
* it under the terms of the GNU General Public License as published by
|
|
* the Free Software Foundation; either version 2 of the License, or
|
|
* (at your option) any later version.
|
|
*
|
|
* This program 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 General Public License for more details.
|
|
*
|
|
* You should have received a copy of the GNU General Public License
|
|
* along with this program; if not, write to the Free Software
|
|
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
|
|
*/
|
|
|
|
#ifdef HAVE_CONFIG_H
|
|
# include <config.h>
|
|
#endif
|
|
|
|
#include <stdlib.h>
|
|
|
|
#include <libavformat/avformat.h>
|
|
|
|
#include "logger.h"
|
|
#include "avio_evbuffer.h"
|
|
|
|
/*
|
|
* libav AVIO interface for evbuffers
|
|
*/
|
|
|
|
#define BUFFER_SIZE 4096
|
|
|
|
struct avio_evbuffer {
|
|
struct evbuffer *evbuf;
|
|
uint8_t *buffer;
|
|
};
|
|
|
|
static int
|
|
avio_evbuffer_read(void *opaque, uint8_t *buf, int size)
|
|
{
|
|
struct avio_evbuffer *ae;
|
|
int ret;
|
|
|
|
ae = (struct avio_evbuffer *)opaque;
|
|
|
|
ret = evbuffer_remove(ae->evbuf, buf, size);
|
|
|
|
return ret;
|
|
}
|
|
|
|
static int
|
|
avio_evbuffer_write(void *opaque, uint8_t *buf, int size)
|
|
{
|
|
struct avio_evbuffer *ae;
|
|
int ret;
|
|
|
|
ae = (struct avio_evbuffer *)opaque;
|
|
|
|
ret = evbuffer_add(ae->evbuf, buf, size);
|
|
|
|
return (ret == 0) ? size : -1;
|
|
}
|
|
|
|
static AVIOContext *
|
|
avio_evbuffer_open(struct evbuffer *evbuf, int is_output)
|
|
{
|
|
struct avio_evbuffer *ae;
|
|
AVIOContext *s;
|
|
|
|
ae = (struct avio_evbuffer *)malloc(sizeof(struct avio_evbuffer));
|
|
if (!ae)
|
|
{
|
|
DPRINTF(E_LOG, L_FFMPEG, "Out of memory for avio_evbuffer\n");
|
|
|
|
return NULL;
|
|
}
|
|
|
|
ae->buffer = av_mallocz(BUFFER_SIZE);
|
|
if (!ae->buffer)
|
|
{
|
|
DPRINTF(E_LOG, L_FFMPEG, "Out of memory for avio buffer\n");
|
|
|
|
free(ae);
|
|
return NULL;
|
|
}
|
|
|
|
ae->evbuf = evbuf;
|
|
|
|
if (is_output)
|
|
s = avio_alloc_context(ae->buffer, BUFFER_SIZE, 1, ae, NULL, avio_evbuffer_write, NULL);
|
|
else
|
|
s = avio_alloc_context(ae->buffer, BUFFER_SIZE, 0, ae, avio_evbuffer_read, NULL, NULL);
|
|
|
|
if (!s)
|
|
{
|
|
DPRINTF(E_LOG, L_FFMPEG, "Could not allocate AVIOContext\n");
|
|
|
|
av_free(ae->buffer);
|
|
free(ae);
|
|
return NULL;
|
|
}
|
|
|
|
s->seekable = 0;
|
|
|
|
return s;
|
|
}
|
|
|
|
AVIOContext *
|
|
avio_input_evbuffer_open(struct evbuffer *evbuf)
|
|
{
|
|
return avio_evbuffer_open(evbuf, 0);
|
|
}
|
|
|
|
AVIOContext *
|
|
avio_output_evbuffer_open(struct evbuffer *evbuf)
|
|
{
|
|
return avio_evbuffer_open(evbuf, 1);
|
|
}
|
|
|
|
void
|
|
avio_evbuffer_close(AVIOContext *s)
|
|
{
|
|
struct avio_evbuffer *ae;
|
|
|
|
if (!s)
|
|
return;
|
|
|
|
ae = (struct avio_evbuffer *)s->opaque;
|
|
|
|
avio_flush(s);
|
|
|
|
av_free(s->buffer);
|
|
free(ae);
|
|
|
|
av_free(s);
|
|
}
|