]> de.git.xonotic.org Git - xonotic/darkplaces.git/blobdiff - snd_ogg.c
eliminated channel_t reference in OGG_FetchEnd
[xonotic/darkplaces.git] / snd_ogg.c
index 0a6f7fdd8d98b89628841e93358db6f0c38194cd..b8ab271fa9cd78b4118773632c43f2ef0e5ddafe 100644 (file)
--- a/snd_ogg.c
+++ b/snd_ogg.c
@@ -158,6 +158,14 @@ typedef struct
        void                            *internal;
 } vorbis_block;
 
+typedef struct
+{
+       char **user_comments;
+       int   *comment_lengths;
+       int    comments;
+       char  *vendor;
+} vorbis_comment;
+
 typedef struct
 {
        void                            *datasource;
@@ -171,7 +179,7 @@ typedef struct
        long                            *serialnos;
        ogg_int64_t                     *pcmlengths;
        vorbis_info                     *vi;
-       void                            *vc;  // VOIDED POINTER
+       vorbis_comment          *vc;
        ogg_int64_t                     pcm_offset;
        int                                     ready_state;
        long                            current_serialno;
@@ -196,6 +204,8 @@ typedef struct
 // Functions exported from the vorbisfile library
 static int (*qov_clear) (OggVorbis_File *vf);
 static vorbis_info* (*qov_info) (OggVorbis_File *vf,int link);
+static vorbis_comment* (*qov_comment) (OggVorbis_File *vf,int link);
+static char * (*qvorbis_comment_query) (vorbis_comment *vc, char *tag, int count);
 static int (*qov_open_callbacks) (void *datasource, OggVorbis_File *vf,
                                                                  char *initial, long ibytes,
                                                                  ov_callbacks callbacks);
@@ -204,14 +214,21 @@ static ogg_int64_t (*qov_pcm_total) (OggVorbis_File *vf,int i);
 static long (*qov_read) (OggVorbis_File *vf,char *buffer,int length,
                                                 int bigendianp,int word,int sgned,int *bitstream);
 
-static dllfunction_t oggvorbisfuncs[] =
+static dllfunction_t vorbisfilefuncs[] =
 {
-       {"ov_clear",                    (void **) &qov_clear},
-       {"ov_info",                             (void **) &qov_info},
-       {"ov_open_callbacks",   (void **) &qov_open_callbacks},
-       {"ov_pcm_seek",                 (void **) &qov_pcm_seek},
-       {"ov_pcm_total",                (void **) &qov_pcm_total},
-       {"ov_read",                             (void **) &qov_read},
+       {"ov_clear",                            (void **) &qov_clear},
+       {"ov_info",                                     (void **) &qov_info},
+       {"ov_comment",                          (void **) &qov_comment},
+       {"ov_open_callbacks",           (void **) &qov_open_callbacks},
+       {"ov_pcm_seek",                         (void **) &qov_pcm_seek},
+       {"ov_pcm_total",                        (void **) &qov_pcm_total},
+       {"ov_read",                                     (void **) &qov_read},
+       {NULL, NULL}
+};
+
+static dllfunction_t vorbisfuncs[] =
+{
+       {"vorbis_comment_query",        (void **) &qvorbis_comment_query},
        {NULL, NULL}
 };
 
@@ -336,8 +353,8 @@ qboolean OGG_OpenLibrary (void)
        // Load the DLLs
        // We need to load both by hand because some OSes seem to not load
        // the vorbis DLL automatically when loading the VorbisFile DLL
-       if (! Sys_LoadLibrary (dllnames_vo, &vo_dll, NULL) ||
-               ! Sys_LoadLibrary (dllnames_vf, &vf_dll, oggvorbisfuncs))
+       if (! Sys_LoadLibrary (dllnames_vo, &vo_dll, vorbisfuncs) ||
+               ! Sys_LoadLibrary (dllnames_vf, &vf_dll, vorbisfilefuncs))
        {
                Sys_UnloadLibrary (&vo_dll);
                Con_Printf ("Ogg Vorbis support disabled\n");
@@ -385,6 +402,8 @@ typedef struct
        unsigned char   *file;
        size_t                  filesize;
        snd_format_t    format;
+       unsigned int    total_length;
+       char                    name[128];
 } ogg_stream_persfx_t;
 
 // Per-channel data structure
@@ -405,31 +424,28 @@ static const ov_callbacks callbacks = {ovcb_read, ovcb_seek, ovcb_close, ovcb_te
 OGG_FetchSound
 ====================
 */
-static const snd_buffer_t* OGG_FetchSound (channel_t* ch, unsigned int* start, unsigned int nbsampleframes)
+static const snd_buffer_t* OGG_FetchSound (void *sfxfetcher, void **chfetcherpointer, unsigned int *start, unsigned int nbsampleframes)
 {
-       ogg_stream_perchannel_t* per_ch;
-       sfx_t* sfx;
-       ogg_stream_persfx_t* per_sfx;
-       snd_format_t* ogg_format;
+       ogg_stream_perchannel_t* per_ch = (ogg_stream_perchannel_t *)*chfetcherpointer;
+       ogg_stream_persfx_t* per_sfx = (ogg_stream_persfx_t *)sfxfetcher;
        snd_buffer_t* sb;
        int newlength, done, ret, bigendian;
        unsigned int real_start;
        unsigned int factor;
 
-       per_ch = (ogg_stream_perchannel_t *)ch->fetcher_data;
-       sfx = ch->sfx;
-       per_sfx = (ogg_stream_persfx_t *)sfx->fetcher_data;
-       ogg_format = &per_sfx->format;
-
        // If there's no fetcher structure attached to the channel yet
        if (per_ch == NULL)
        {
                size_t buff_len, memsize;
+               snd_format_t sb_format;
+
+               sb_format.speed = snd_renderbuffer->format.speed;
+               sb_format.width = per_sfx->format.width;
+               sb_format.channels = per_sfx->format.channels;
 
-               buff_len = STREAM_BUFFER_SIZE(ogg_format);
+               buff_len = STREAM_BUFFER_SIZE(&sb_format);
                memsize = sizeof (*per_ch) - sizeof (per_ch->sb.samples) + buff_len;
                per_ch = (ogg_stream_perchannel_t *)Mem_Alloc (snd_mempool, memsize);
-               sfx->memsize += memsize;
 
                // Open it with the VorbisFile API
                per_ch->ov_decode.buffer = per_sfx->file;
@@ -437,22 +453,20 @@ static const snd_buffer_t* OGG_FetchSound (channel_t* ch, unsigned int* start, u
                per_ch->ov_decode.buffsize = per_sfx->filesize;
                if (qov_open_callbacks (&per_ch->ov_decode, &per_ch->vf, NULL, 0, callbacks) < 0)
                {
-                       Con_Printf("error while reading Ogg Vorbis stream \"%s\"\n", sfx->name);
+                       Con_Printf("error while reading Ogg Vorbis stream \"%s\"\n", per_sfx->name);
                        Mem_Free (per_ch);
                        return NULL;
                }
                per_ch->bs = 0;
 
                per_ch->sb_offset = 0;
-               per_ch->sb.format.speed = snd_renderbuffer->format.speed;
-               per_ch->sb.format.width = ogg_format->width;
-               per_ch->sb.format.channels = ogg_format->channels;
+               per_ch->sb.format = sb_format;
                per_ch->sb.nbframes = 0;
                per_ch->sb.maxframes = buff_len / (per_ch->sb.format.channels * per_ch->sb.format.width);
 
-               ch->fetcher_data = per_ch;
+               *chfetcherpointer = per_ch;
        }
-       
+
        real_start = *start;
 
        sb = &per_ch->sb;
@@ -480,11 +494,11 @@ static const snd_buffer_t* OGG_FetchSound (channel_t* ch, unsigned int* start, u
                unsigned int time_start;
                ogg_int64_t ogg_start;
                int err;
-               
-               if (real_start > sfx->total_length)
+
+               if (real_start > (unsigned int)per_sfx->total_length)
                {
                        Con_Printf ("OGG_FetchSound: asked for a start position after the end of the sfx! (%u > %u)\n",
-                                               real_start, sfx->total_length);
+                                               real_start, per_sfx->total_length);
                        return NULL;
                }
 
@@ -528,6 +542,8 @@ static const snd_buffer_t* OGG_FetchSound (channel_t* ch, unsigned int* start, u
                return NULL;
        }
        newlength = per_sfx->format.speed * factor;  // -> 1 sec of sound before resampling
+       if(newlength > (int)sizeof(resampling_buffer))
+               newlength = sizeof(resampling_buffer);
 
        // Decompress in the resampling_buffer
 #if BYTE_ORDER == BIG_ENDIAN
@@ -551,24 +567,18 @@ static const snd_buffer_t* OGG_FetchSound (channel_t* ch, unsigned int* start, u
 OGG_FetchEnd
 ====================
 */
-static void OGG_FetchEnd (channel_t* ch)
+static void OGG_FetchEnd (void **chfetcherpointer)
 {
-       ogg_stream_perchannel_t* per_ch;
+       ogg_stream_perchannel_t* per_ch = (ogg_stream_perchannel_t *)*chfetcherpointer;
 
-       per_ch = (ogg_stream_perchannel_t *)ch->fetcher_data;
        if (per_ch != NULL)
        {
-               size_t buff_len;
-
                // Free the ogg vorbis decoder
                qov_clear (&per_ch->vf);
 
-               buff_len = per_ch->sb.maxframes * per_ch->sb.format.channels * per_ch->sb.format.width;
-               ch->sfx->memsize -= sizeof (*per_ch) - sizeof (per_ch->sb.samples) + buff_len;
-
                Mem_Free (per_ch);
-               ch->fetcher_data = NULL;
        }
+       *chfetcherpointer = NULL;
 }
 
 
@@ -618,10 +628,12 @@ Load an Ogg Vorbis file into memory
 qboolean OGG_LoadVorbisFile (const char *filename, sfx_t *sfx)
 {
        unsigned char *data;
+       const char *loopcomment;
        fs_offset_t filesize;
        ov_decode_t ov_decode;
        OggVorbis_File vf;
        vorbis_info *vi;
+       vorbis_comment *vc;
        ogg_int64_t len, buff_len;
 
        if (!vf_dll)
@@ -670,6 +682,7 @@ qboolean OGG_LoadVorbisFile (const char *filename, sfx_t *sfx)
 
                Con_DPrintf ("\"%s\" will be streamed\n", filename);
                per_sfx = (ogg_stream_persfx_t *)Mem_Alloc (snd_mempool, sizeof (*per_sfx));
+               strlcpy(per_sfx->name, sfx->name, sizeof(per_sfx->name));
                sfx->memsize += sizeof (*per_sfx);
                per_sfx->file = data;
                per_sfx->filesize = filesize;
@@ -681,9 +694,16 @@ qboolean OGG_LoadVorbisFile (const char *filename, sfx_t *sfx)
 
                sfx->fetcher_data = per_sfx;
                sfx->fetcher = &ogg_fetcher;
-               sfx->loopstart = -1;
                sfx->flags |= SFXFLAG_STREAMED;
-               sfx->total_length = (int)((size_t)len / (per_sfx->format.channels * 2) * ((double)snd_renderbuffer->format.speed / per_sfx->format.speed));
+               per_sfx->total_length = sfx->total_length = (int)((size_t)len / (per_sfx->format.channels * 2) * ((double)snd_renderbuffer->format.speed / per_sfx->format.speed));
+               sfx->loopstart = sfx->total_length;
+               vc = qov_comment(&vf, -1);
+               if(vc)
+               {
+                       loopcomment = qvorbis_comment_query(vc, "LOOP_START", 0);
+                       if(loopcomment)
+                               sfx->loopstart = bound(0, (unsigned int) (atof(loopcomment) * (double)snd_renderbuffer->format.speed / (double)per_sfx->format.speed), sfx->total_length);
+               }
        }
        else
        {
@@ -727,8 +747,15 @@ qboolean OGG_LoadVorbisFile (const char *filename, sfx_t *sfx)
                sfx->total_length = sb->nbframes;
                sfx->memsize += sb->maxframes * sb->format.channels * sb->format.width + sizeof (*sb) - sizeof (sb->samples);
 
-               sfx->loopstart = -1;
+               sfx->loopstart = sfx->total_length;
                sfx->flags &= ~SFXFLAG_STREAMED;
+               vc = qov_comment(&vf, -1);
+               if(vc)
+               {
+                       loopcomment = qvorbis_comment_query(vc, "LOOP_START", 0);
+                       if(loopcomment)
+                               sfx->loopstart = bound(0, (unsigned int) (atoi(loopcomment) * (double)snd_renderbuffer->format.speed / (double)sb->format.speed), sfx->total_length);
+               }
 
                qov_clear (&vf);
                Mem_Free (data);