mirror of
https://gitlab.xiph.org/xiph/icecast-server.git
synced 2024-06-23 06:25:24 +00:00
b1dcee52a8
mainly due to client support, but they are only for detection and plug straight into the ogg handler. The win32 project files will need updating to take the new files into account svn path=/icecast/trunk/icecast/; revision=9225
127 lines
3.1 KiB
C
127 lines
3.1 KiB
C
/* Icecast
|
|
*
|
|
* This program is distributed under the GNU General Public License, version 2.
|
|
* A copy of this license is included with this source.
|
|
*
|
|
* Copyright 2000-2004, Jack Moffitt <jack@xiph.org,
|
|
* Michael Smith <msmith@xiph.org>,
|
|
* oddsock <oddsock@xiph.org>,
|
|
* Karl Heyes <karl@xiph.org>
|
|
* and others (see AUTHORS for details).
|
|
*/
|
|
|
|
|
|
/* Ogg codec handler for FLAC logical streams */
|
|
|
|
#ifdef HAVE_CONFIG_H
|
|
#include <config.h>
|
|
#endif
|
|
|
|
#include <stdlib.h>
|
|
#include <ogg/ogg.h>
|
|
#include <string.h>
|
|
|
|
typedef struct source_tag source_t;
|
|
|
|
#include "refbuf.h"
|
|
#include "format_ogg.h"
|
|
#include "client.h"
|
|
#include "stats.h"
|
|
|
|
#define CATMODULE "format-flac"
|
|
#include "logging.h"
|
|
|
|
|
|
static void flac_codec_free (ogg_state_t *ogg_info, ogg_codec_t *codec)
|
|
{
|
|
DEBUG0 ("freeing FLAC codec");
|
|
stats_event (ogg_info->mount, "FLAC_version", NULL);
|
|
ogg_stream_clear (&codec->os);
|
|
free (codec);
|
|
}
|
|
|
|
|
|
/* Here, we just verify the page is ok and then add it to the queue */
|
|
static refbuf_t *process_flac_page (ogg_state_t *ogg_info, ogg_codec_t *codec, ogg_page *page)
|
|
{
|
|
refbuf_t * refbuf;
|
|
|
|
if (ogg_stream_pagein (&codec->os, page) < 0)
|
|
{
|
|
ogg_info->error = 1;
|
|
return NULL;
|
|
}
|
|
if (codec->headers)
|
|
{
|
|
ogg_packet packet;
|
|
while (ogg_stream_packetout (&codec->os, &packet))
|
|
{
|
|
int type = packet.packet[0];
|
|
if (type == 0xFF)
|
|
{
|
|
codec->headers = 0;
|
|
break;
|
|
}
|
|
if (type >= 1 && type <= 0x7E)
|
|
continue;
|
|
if (type >= 0x81 && type <= 0xFE)
|
|
continue;
|
|
ogg_info->error = 1;
|
|
return NULL;
|
|
}
|
|
if (codec->headers)
|
|
{
|
|
format_ogg_attach_header (ogg_info, page);
|
|
return NULL;
|
|
}
|
|
}
|
|
refbuf = make_refbuf_with_page (page);
|
|
return refbuf;
|
|
}
|
|
|
|
|
|
/* Check for flac header in logical stream */
|
|
|
|
ogg_codec_t *initial_flac_page (format_plugin_t *plugin, ogg_page *page)
|
|
{
|
|
ogg_state_t *ogg_info = plugin->_state;
|
|
ogg_codec_t *codec = calloc (1, sizeof (ogg_codec_t));
|
|
ogg_packet packet;
|
|
|
|
ogg_stream_init (&codec->os, ogg_page_serialno (page));
|
|
ogg_stream_pagein (&codec->os, page);
|
|
|
|
ogg_stream_packetout (&codec->os, &packet);
|
|
|
|
DEBUG0("checking for FLAC codec");
|
|
do
|
|
{
|
|
unsigned char *parse = packet.packet;
|
|
|
|
if (page->header_len + page->body_len != 79)
|
|
break;
|
|
if (*parse != 0x7F)
|
|
break;
|
|
parse++;
|
|
if (memcmp (parse, "FLAC", 4) != 0)
|
|
break;
|
|
|
|
INFO0 ("seen initial FLAC header");
|
|
|
|
parse += 4;
|
|
stats_event_args (ogg_info->mount, "FLAC_version", "%d.%d", parse[0], parse[1]);
|
|
codec->process_page = process_flac_page;
|
|
codec->codec_free = flac_codec_free;
|
|
codec->headers = 1;
|
|
codec->name = "FLAC";
|
|
|
|
format_ogg_attach_header (ogg_info, page);
|
|
return codec;
|
|
} while (0);
|
|
|
|
ogg_stream_clear (&codec->os);
|
|
free (codec);
|
|
return NULL;
|
|
}
|
|
|