Attempt to add opus support.

Makefile.am

@@ -15,7 +15,7 @@
 # Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
 # USA.
 
-AM_CFLAGS = -Wall -D_LARGEFILE_SOURCE -D_FILE_OFFSET_BITS=64
+AM_CFLAGS = -Wall -D_LARGEFILE_SOURCE -D_FILE_OFFSET_BITS=64 @libpng_CFLAGS@ @opus_CFLAGS@
 
 SUBDIRS=po
 
@@ -62,7 +62,8 @@ minidlnad_LDADD = \
     @LIBEXIF_LIBS@ \
     @LIBINTL@ \
     @LIBICONV@ \
-	-lFLAC $(flacogglibs) $(vorbislibs) $(avahilibs)
+    -lFLAC $(flacogglibs) $(vorbislibs) $(avahilibs) \
+    @opus_LIBS@
 
 testupnpdescgen_SOURCES = testupnpdescgen.c upnpdescgen.c
 testupnpdescgen_LDADD = \

configure.ac

@@ -462,6 +462,12 @@ AC_CHECK_LIB(vorbisfile, ov_open_callbacks,
          AM_CONDITIONAL(HAVE_VORBISFILE, false))],
          AM_CONDITIONAL(HAVE_VORBISFILE, false),
          -lvorbis -logg)
+#test if we have opus/opusfile
+
+PKG_CHECK_MODULES([opus], [opus opusfile],
+    AM_CONDITIONAL(HAVE_OPUS, true)
+    AC_DEFINE(HAVE_OPUS,1,[Define to 1 if you have opus/opusfile]),
+    AM_CONDITIONAL(HAVE_OPUS, false))
 AC_CHECK_LIB(FLAC, FLAC__stream_decoder_init_stream,
         [AC_CHECK_HEADERS([FLAC/all.h],
          AM_CONDITIONAL(HAVE_FLAC, true)

metadata.c

@@ -343,11 +343,55 @@ GetAudioMetadata(const char *path, const char *name)
 		strcpy(type, "wav");
 		m.mime = strdup("audio/x-wav");
 	}
-	else if( ends_with(path, ".ogg") || ends_with(path, ".oga") )
+else if( ends_with(path,".oga") || ends_with(path,".ogg"))
+{
+    /* The .ogg/.oga file extensions present something of a problem.
+     * ".ogg" has been deprecated in favor of ".oga" for some time, but
+     * many applications still only recognize ".ogg".
+     *
+     * This examines the file and causes .ogg to be presented for any naked
+     * Vorbis file (MIME type audio/ogg; codecs=vorbis) and .oga
+     * (audio/ogg) to be used for everything else.  This is in line with
+     * the official ogg naming conventions and, hopefully, makes for a
+     * resonable compromise.
+     */
+    uint8_t oggtestbuf[35];
+    FILE *oggfile = fopen (path, "rb");
+
+    if (oggfile == (FILE *)NULL)
     {
-		strcpy(type, "ogg");
-		m.mime = strdup("audio/ogg");
+        DPRINTF(E_ERROR, L_METADATA, "Error opening %s\n", path);
+        return 0;
     }
+
+    if (fread (oggtestbuf, 1, 35, oggfile) != 35)
+    {
+        DPRINTF(E_WARN, L_METADATA, "Premature EOF on %s\n", path);
+        fclose (oggfile);
+        return 0;
+    }
+    fclose (oggfile);
+
+    if (memcmp (&oggtestbuf[28], "\x01vorbis", 7))
+        m.mime = strdup ("audio/ogg");
+    else
+        m.mime = strdup ("audio/ogg; codecs=vorbis");
+
+    strcpy(type, "ogg");
+}
+else if ( ends_with(path, ".opus") )
+{
+    strcpy(type,"ops");
+    m.mime = strdup("audio/ogg; codecs=opus");
+}
+#if 0
+/* Not supported yet, and probably won't be. */
+else if( ends_with(path, ".ogx") )
+{
+    strcpy(type, "ogx");
+    m.mime = strdup("application/ogg");
+}
+#endif
 	else if( ends_with(path, ".pcm") )
 	{
 		strcpy(type, "pcm");

tagutils/opus.c

@@ -0,0 +1,59 @@
+//=========================================================================
+// FILENAME : tagutils-opus.c
+// DESCRIPTION  : Opus metadata reader
+//=========================================================================
+
+static int
+_get_opusfileinfo(char *filename, struct song_metadata *psong)
+{
+    OggOpusFile *opusfile;
+    const OpusTags *tags;
+    char **comment;
+    int *commentlen;
+    int j, e;
+
+
+    opusfile = op_open_file (filename, &e);
+    if(!opusfile)
+    {
+        DPRINTF(E_WARN, L_SCANNER,
+            "Error opening input file \"%s\": %s\n", filename, opus_strerror(e));
+        return -1;
+    }
+
+    DPRINTF(E_MAXDEBUG, L_SCANNER, "Processing file \"%s\"...\n", filename);
+
+    psong->song_length = op_pcm_total (opusfile, -1);
+    if (psong->song_length < 0)
+    {
+        DPRINTF(E_WARN, L_SCANNER,
+                "Unable to obtain length of %s\n", filename);
+        psong->song_length = 0;
+    } else
+        /* Sample rate is always 48k, so length in ms is just samples/48 */
+        psong->song_length /= 48;
+
+    /* Note that this gives only the first link's channel count. */
+    psong->channels = op_channel_count (opusfile, -1);
+
+    psong->samplerate = 48000;
+    psong->bitrate = op_bitrate (opusfile, -1);
+
+    tags = op_tags (opusfile, -1);
+
+    if (!tags)
+    {
+        DPRINTF(E_WARN, L_SCANNER, "Unable to obtain tags from %s\n",
+                filename);
+        return -1;
+    }
+
+    comment = tags->user_comments;
+    commentlen = tags->comment_lengths; 
+
+    for (j = 0; j < tags->comments; j++)
+        vc_scan (psong, *(comment++), *(commentlen++));
+
+    op_free (opusfile);
+    return 0;
+}

tagutils/opus.h

@@ -0,0 +1,6 @@
+//=========================================================================
+// FILENAME : tagutils-opus.h
+// DESCRIPTION  : Opus metadata reader
+//=========================================================================
+
+static int _get_opusfileinfo(char *filename, struct song_metadata *psong);

tagutils/tagutils.c

@@ -42,6 +42,10 @@
 #ifdef HAVE_ICONV
 #include <iconv.h>
 #endif
+/* ADD THIS INCLUDE FOR OPUS */
+#ifdef HAVE_OPUS
+#include <opusfile.h>
+#endif
 #include <sqlite3.h>
 #include "tagutils.h"
 #include "../metadata.h"
@@ -104,8 +108,9 @@ char *winamp_genre[] = {
  */
 #include "tagutils-mp3.h"
 #include "tagutils-aac.h"
-#ifdef HAVE_VORBISFILE
 #include "tagutils-ogg.h"
+#ifdef HAVE_OPUS
+#include "tagutils-opus.h"
 #endif
 #include "tagutils-flc.h"
 #include "tagutils-asf.h"
@@ -132,14 +137,15 @@ static taghandler taghandlers[] = {
     { "aac", _get_aactags,  _get_aacfileinfo },
     { "mp3", _get_mp3tags,  _get_mp3fileinfo },
     { "flc", _get_flctags,  _get_flcfileinfo },
-#ifdef HAVE_VORBISFILE
-	{ "ogg", NULL,		_get_oggfileinfo },
+    { "ogg", 0,            _get_oggfileinfo },
+#ifdef HAVE_OPUS
+    { "ops", 0,             _get_opusfileinfo                                },
 #endif
-	{ "asf", NULL,		_get_asffileinfo },
+    { "asf", 0,     _get_asffileinfo },
     { "wav", _get_wavtags,  _get_wavfileinfo },
-	{ "pcm", NULL,		_get_pcmfileinfo },
+    { "pcm", 0,     _get_pcmfileinfo },
     { "dsf", _get_dsftags,  _get_dsffileinfo },
-	{ "dff", NULL,		_get_dfffileinfo },
+    { "dff", 0,     _get_dfffileinfo },
     { NULL,  NULL, NULL }
 };
 
@@ -149,8 +155,9 @@ static taghandler taghandlers[] = {
 #include "tagutils-misc.c"
 #include "tagutils-mp3.c"
 #include "tagutils-aac.c"
-#ifdef HAVE_VORBISFILE
 #include "tagutils-ogg.c"
+#ifdef HAVE_OPUS
+#include "tagutils-opus.c"
 #endif
 #include "tagutils-flc.c"
 #include "tagutils-asf.c"

utils.c

@@ -345,8 +345,15 @@ mime_to_ext(const char * mime)
                 return "pcm";
             else if( strcmp(mime+6, "3gpp") == 0 )
                 return "3gp";
-			else if( strcmp(mime, "application/ogg") == 0 )
+            else if( strncmp(mime+6, "ogg", 3) == 0 )
+            {
+                if( strstr(mime+9, "opus" ) != (char *)NULL )
+                    return "opus";
+                else if( strstr (mime+9, "vorbis" ) != (char *)NULL )
                     return "ogg";
+
+                return "oga";
+            }
             else if( strcmp(mime+6, "x-dsd") == 0 )
                 return "dsd";
             break;
@@ -377,6 +384,8 @@ mime_to_ext(const char * mime)
                 return "3gp";
             else if( strncmp(mime+6, "x-tivo-mpeg", 11) == 0 )
                 return "TiVo";
+            else if ( strcmp(mime+6, "ogg") == 0 )
+                    return "ogv";
             break;
         case 'i':
             if( strcmp(mime+6, "jpeg") == 0 )
@@ -401,6 +410,7 @@ is_video(const char * file)
         ends_with(file, ".m2t") || ends_with(file, ".mkv")   ||
         ends_with(file, ".vob") || ends_with(file, ".ts")    ||
         ends_with(file, ".flv") || ends_with(file, ".xvid")  ||
+        ends_with(file, ".ogv") ||
 #ifdef TIVO_SUPPORT
         ends_with(file, ".TiVo") ||
 #endif
@@ -418,6 +428,10 @@ is_audio(const char * file)
         ends_with(file, ".m4a") || ends_with(file, ".aac")  ||
         ends_with(file, ".mp4") || ends_with(file, ".m4p")  ||
         ends_with(file, ".wav") || ends_with(file, ".ogg")  ||
+        ends_with(file, ".oga") || 
+#ifdef HAVE_OPUS
+        ends_with(file, ".opus") ||
+#endif
         ends_with(file, ".pcm") || ends_with(file, ".3gp")  ||
         ends_with(file, ".dsf") || ends_with(file, ".dff"));
 }