Add more Ogg codec handlers, there has not been that much testing on these

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

Makefile.am

@@ -6,7 +6,7 @@ ACLOCAL_AMFLAGS = -I m4
 SUBDIRS = src conf debian doc web admin win32
 
 EXTRA_DIST = HACKING m4/acx_pthread.m4 m4/ogg.m4 \
-    m4/theora.m4 m4/vorbis.m4 \
+    m4/theora.m4 m4/vorbis.m4 m4/speex.m4 \
     m4/xiph_compiler.m4 m4/xiph_curl.m4 m4/xiph_net.m4 \
     m4/xiph_types.m4 m4/xiph_xml2.m4 icecast.spec
 

configure.in

-AC_INIT([Icecast], [2.2.0], [icecast@xiph.org])
+AC_INIT([Icecast], [2.2.0-trunk], [icecast@xiph.org])
 
 AC_PREREQ(2.54)
 AC_CONFIG_SRCDIR(src/main.c)
@@ -91,6 +91,16 @@ XIPH_PATH_THEORA([
     [ AC_MSG_WARN([Theora disabled!])
     ])
 
+XIPH_PATH_SPEEX(
+    [ XIPH_VAR_APPEND([XIPH_CPPFLAGS],[$SPEEX_CFLAGS])
+    XIPH_VAR_PREPEND([XIPH_LIBS],[$SPEEX_LIBS])
+    XIPH_VAR_APPEND([XIPH_LDFLAGS],[$SPEEX_LDFLAGS])
+    ICECAST_OPTIONAL="$ICECAST_OPTIONAL format_speex.o"
+    ],
+    [ AC_MSG_WARN([Speex support disabled!])
+    ])
+
+
 ACX_PTHREAD(, AC_MSG_ERROR([POSIX threads missing]))
 XIPH_VAR_APPEND([XIPH_CFLAGS],[$PTHREAD_CFLAGS])
 XIPH_VAR_APPEND([XIPH_CPPFLAGS],[$PTHREAD_CPPFLAGS])

src/Makefile.am

@@ -10,12 +10,13 @@ noinst_HEADERS = admin.h cfgfile.h os.h logging.h sighandler.h connection.h \
     global.h util.h slave.h source.h stats.h refbuf.h client.h format.h \
     compat.h format_mp3.h fserve.h xslt.h yp.h event.h md5.h \
     auth.h format_ogg.h \
-    format_vorbis.h format_theora.h
+    format_vorbis.h format_theora.h format_flac.h format_speex.h
 icecast_SOURCES = cfgfile.c main.c logging.c sighandler.c connection.c global.c \
-    util.c slave.c source.c stats.c refbuf.c client.c format.c format_ogg.c \
-    format_mp3.c xslt.c fserve.c event.c admin.c auth.c md5.c
+    util.c slave.c source.c stats.c refbuf.c client.c \
+    xslt.c fserve.c event.c admin.c auth.c md5.c \
+    format.c format_ogg.c format_mp3.c format_midi.c format_flac.c
 EXTRA_icecast_SOURCES = yp.c \
-    format_vorbis.c format_theora.c
+    format_vorbis.c format_theora.c format_speex.c
     
 icecast_DEPENDENCIES = @ICECAST_OPTIONAL@ net/libicenet.la thread/libicethread.la \
     httpp/libicehttpp.la log/libicelog.la avl/libiceavl.la timing/libicetiming.la

src/format_flac.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;
+}
+

src/format_flac.h

+/* 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).
+ */
+
+
+#ifndef __FORMAT_FLAC_H
+#define __FORMAT_FLAC_H
+
+#include "format_ogg.h"
+
+ogg_codec_t *initial_flac_page (format_plugin_t *plugin, ogg_page *page);
+
+#endif /* __FORMAT_FLAC_H */

src/format_midi.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;
+}
+

src/format_midi.h

+/* 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).
+ */
+
+
+#ifndef __FORMAT_MIDI_H
+#define __FORMAT_MIDI_H
+
+#include "format_ogg.h"
+
+ogg_codec_t *initial_midi_page (format_plugin_t *plugin, ogg_page *page);
+
+#endif /* __FORMAT_MIDI_H */

src/format_ogg.c

@@ -37,6 +37,11 @@
 #ifdef HAVE_THEORA
 #include "format_theora.h"
 #endif
+#ifdef HAVE_SPEEX
+#include "format_speex.h"
+#endif
+#include "format_midi.h"
+#include "format_flac.h"
 
 #ifdef _WIN32
 #define snprintf _snprintf
@@ -217,6 +222,18 @@ static int process_initial_page (format_plugin_t *plugin, ogg_page *page)
         if (codec)
             break;
 #endif
+        codec = initial_midi_page (plugin, page);
+        if (codec)
+            break;
+        codec = initial_flac_page (plugin, page);
+        if (codec)
+            break;
+#ifdef HAVE_SPEEX
+        codec = initial_speex_page (plugin, page);
+        if (codec)
+            break;
+#endif
+
         /* any others */
         ERROR0 ("Seen BOS page with unknown type");
         return -1;

src/format_speex.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 speex streams */
+
+#ifdef HAVE_CONFIG_H
+#include <config.h>
+#endif
+
+#include <stdlib.h>
+#include <ogg/ogg.h>
+#include <speex/speex_header.h>
+
+typedef struct source_tag source_t;
+
+#include "format_speex.h"
+#include "refbuf.h"
+#include "client.h"
+
+#define CATMODULE "format-speex"
+#include "logging.h"
+
+static void speex_codec_free (ogg_state_t *ogg_info, ogg_codec_t *codec)
+{
+    ogg_stream_clear (&codec->os);
+    free (codec);
+}
+
+
+static refbuf_t *process_speex_page (ogg_state_t *ogg_info,
+        ogg_codec_t *codec, ogg_page *page)
+{
+    refbuf_t *refbuf;
+
+    if (codec->headers < 2)
+    {
+        ogg_packet packet;
+
+        ogg_stream_pagein (&codec->os, page);
+        while (ogg_stream_packetout (&codec->os, &packet) > 0)
+        {
+           /* first time around (normal case) yields comments */
+           codec->headers++;
+        }
+        /* add header page to associated list */
+        format_ogg_attach_header (ogg_info, page);
+        return NULL;
+    }
+    refbuf = make_refbuf_with_page (page);
+    return refbuf;
+}
+
+
+ogg_codec_t *initial_speex_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;
+    SpeexHeader *header;
+
+    ogg_stream_init (&codec->os, ogg_page_serialno (page));
+    ogg_stream_pagein (&codec->os, page);
+
+    ogg_stream_packetout (&codec->os, &packet);
+
+    DEBUG0("checking for speex codec");
+    header = speex_packet_to_header (packet.packet, packet.bytes);
+    if (header == NULL)
+    {
+        ogg_stream_clear (&codec->os);
+        free (header);
+        free (codec);
+        return NULL;
+    }
+    INFO0 ("seen initial speex header");
+    codec->process_page = process_speex_page;
+    codec->codec_free = speex_codec_free;
+    codec->headers = 1;
+    format_ogg_attach_header (ogg_info, page);
+    free (header);
+    return codec;
+}

src/format_speex.h

+/* 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).
+ */
+
+
+#ifndef __FORMAT_SPEEX_H
+#define __FORMAT_SPEEX_H
+
+#include "format_ogg.h"
+
+ogg_codec_t *initial_speex_page (format_plugin_t *plugin, ogg_page *page);
+
+#endif /* __FORMAT_SPEEX_H */