Estimate (poorly) the duration of an Ogg track, and display elapsed time in WPS

git-svn-id: svn://svn.rockbox.org/rockbox/trunk@6681 a1c6a512-1295-4272-9138-f99709370657

2 files changed, 10 insertions, 6 deletions

diff --git a/apps/playback.c b/apps/playback.c
index 8d5ba3c..739496e 100644
--- a/apps/playback.c
+++ b/apps/playback.c
@@ -831,11 +831,13 @@ bool audio_load_track(int offset, bool start_play, int peek_offset)
         tracks[track_widx].id3.bitrate=(buf[48]|(buf[49]<<8)|(buf[50]<<16)|(buf[51]<<24))/1000;
         tracks[track_widx].id3.vbr=true;
 
-        /* I don't yet know how to calculate the totalsamples */
-        totalsamples=0;
-
-        /* Calculate the length in ms */
-        tracks[track_widx].id3.length=(totalsamples/tracks[track_widx].id3.frequency)*1000;
+        if (tracks[track_widx].id3.bitrate!=0) {
+          /* A _really_ stupid and inaccurate calculation, but the best
+             I can do at the moment. */
+          tracks[track_widx].id3.length=(tracks[track_widx].filesize)/(tracks[track_widx].id3.bitrate/8);
+        } else {
+          tracks[track_widx].id3.length=0;
+        }
 
         lseek(fd, 0, SEEK_SET);
         strncpy(tracks[track_widx].id3.path,trackname,sizeof(tracks[track_widx].id3.path));
diff --git a/apps/plugins/codecvorbis.c b/apps/plugins/codecvorbis.c
index 6c512f7..a1f39f0 100644
--- a/apps/plugins/codecvorbis.c
+++ b/apps/plugins/codecvorbis.c
@@ -147,7 +147,9 @@ enum plugin_status plugin_start(struct plugin_api* api, void* parm)
       rb->yield();
       while (!ci->audiobuffer_insert(pcmbuf, n))
         rb->yield();
-	    
+
+      ci->set_elapsed(ov_time_tell(&vf));
+
 #if BYTE_ORDER == BIG_ENDIAN
       for (i=0;i<n;i+=2) { 
         x=pcmbuf[i]; pcmbuf[i]=pcmbuf[i+1]; pcmbuf[i+1]=x;