mirror of
https://gitlab.xiph.org/xiph/icecast-server.git
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89 lines
2.2 KiB
C
89 lines
2.2 KiB
C
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/* Icecast
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*
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* This program is distributed under the GNU General Public License, version 2.
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* A copy of this license is included with this source.
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*
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* Copyright 2000-2004, Jack Moffitt <jack@xiph.org>,
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* Michael Smith <msmith@xiph.org>,
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* oddsock <oddsock@xiph.org>,
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* Karl Heyes <karl@xiph.org>
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* and others (see AUTHORS for details).
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*/
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/* Ogg codec handler for opus streams */
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#ifdef HAVE_CONFIG_H
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#include <config.h>
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#endif
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#include <stdlib.h>
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#include <ogg/ogg.h>
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typedef struct source_tag source_t;
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#include "format_opus.h"
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#include "refbuf.h"
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#include "client.h"
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#define CATMODULE "format-opus"
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#include "logging.h"
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static void opus_codec_free (ogg_state_t *ogg_info, ogg_codec_t *codec)
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{
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ogg_stream_clear (&codec->os);
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free (codec);
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}
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static refbuf_t *process_opus_page (ogg_state_t *ogg_info,
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ogg_codec_t *codec, ogg_page *page)
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{
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refbuf_t *refbuf;
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if (codec->headers < 2)
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{
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ogg_packet packet;
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ogg_stream_pagein (&codec->os, page);
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while (ogg_stream_packetout (&codec->os, &packet) > 0)
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{
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/* first time around (normal case) yields comments */
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codec->headers++;
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}
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/* add header page to associated list */
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format_ogg_attach_header (ogg_info, page);
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return NULL;
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}
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refbuf = make_refbuf_with_page (page);
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return refbuf;
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}
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ogg_codec_t *initial_opus_page (format_plugin_t *plugin, ogg_page *page)
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{
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ogg_state_t *ogg_info = plugin->_state;
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ogg_codec_t *codec = calloc (1, sizeof (ogg_codec_t));
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ogg_packet packet;
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ogg_stream_init (&codec->os, ogg_page_serialno (page));
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ogg_stream_pagein (&codec->os, page);
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ogg_stream_packetout (&codec->os, &packet);
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DEBUG0("checking for opus codec");
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if (strncmp((char *)packet.packet, "OpusHead", 8) != 0)
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{
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ogg_stream_clear (&codec->os);
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free (codec);
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return NULL;
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}
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INFO0 ("seen initial opus header");
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codec->process_page = process_opus_page;
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codec->codec_free = opus_codec_free;
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codec->headers = 1;
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format_ogg_attach_header (ogg_info, page);
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return codec;
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}
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