mirror of
https://gitlab.xiph.org/xiph/icecast-server.git
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91 lines
2.2 KiB
C
91 lines
2.2 KiB
C
/* Icecast
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*
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* This program is distributed under the GNU General Public License,
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* version 2. A copy of this license is included with this source.
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* At your option, this specific source file can also be distributed
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* under the GNU GPL version 3.
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*
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* Copyright 2012, David Richards, Mozilla Foundation,
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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 <string.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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ICECAST_LOG_DEBUG("checking for opus codec");
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if (packet.bytes < 8 || 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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ICECAST_LOG_INFO("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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codec->name = "Opus";
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ogg_info->log_metadata = 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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