mirror of
https://gitlab.xiph.org/xiph/icecast-server.git
synced 2024-08-18 03:34:14 -04:00
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
96 lines
2.2 KiB
C
96 lines
2.2 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 MIDI 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-midi"
|
|
#include "logging.h"
|
|
|
|
|
|
static void midi_codec_free (ogg_state_t *ogg_info, ogg_codec_t *codec)
|
|
{
|
|
DEBUG0 ("freeing MIDI codec");
|
|
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_midi_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;
|
|
}
|
|
refbuf = make_refbuf_with_page (page);
|
|
return refbuf;
|
|
}
|
|
|
|
|
|
/* Check for midi header in logical stream */
|
|
|
|
ogg_codec_t *initial_midi_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 MIDI codec");
|
|
do
|
|
{
|
|
if (packet.bytes < 9)
|
|
break;
|
|
if (memcmp (packet.packet, "OggMIDI\000", 8) != 0)
|
|
break;
|
|
if (packet.bytes != 12)
|
|
break;
|
|
|
|
INFO0 ("seen initial MIDI header");
|
|
codec->process_page = process_midi_page;
|
|
codec->codec_free = midi_codec_free;
|
|
codec->headers = 1;
|
|
codec->name = "MIDI";
|
|
|
|
format_ogg_attach_header (ogg_info, page);
|
|
return codec;
|
|
} while (0);
|
|
|
|
ogg_stream_clear (&codec->os);
|
|
free (codec);
|
|
return NULL;
|
|
}
|
|
|