Remove some useless code and variables in the area of metadata parsing. Bump codec API.

git-svn-id: svn://svn.rockbox.org/rockbox/trunk@29438 a1c6a512-1295-4272-9138-f99709370657

5 files changed, 22 insertions, 24 deletions

diff --git a/apps/codecs.h b/apps/codecs.h
index a3f5d40..8a40791 100644
--- a/apps/codecs.h
+++ b/apps/codecs.h
@@ -75,12 +75,12 @@
 #define CODEC_ENC_MAGIC 0x52454E43 /* RENC */
 
 /* increase this every time the api struct changes */
-#define CODEC_API_VERSION 37
+#define CODEC_API_VERSION 38
 
 /* update this to latest version if a change to the api struct breaks
    backwards compatibility (and please take the opportunity to sort in any
    new function which are "waiting" at the end of the function table) */
-#define CODEC_MIN_API_VERSION 37
+#define CODEC_MIN_API_VERSION 38
 
 /* codec return codes */
 enum codec_status {
diff --git a/apps/metadata.h b/apps/metadata.h
index 5662c2e..4c7e94f 100644
--- a/apps/metadata.h
+++ b/apps/metadata.h
@@ -221,7 +221,6 @@ struct mp3entry {
     char* grouping;
     int discnum;    
     int tracknum;
-    int version;
     int layer;
     int year;
     unsigned char id3version;
@@ -233,7 +232,6 @@ struct mp3entry {
     unsigned long first_frame_offset; /* Byte offset to first real MP3 frame.
                                          Used for skipping leading garbage to
                                          avoid gaps between tracks. */
-    unsigned long vbr_header_pos;
     unsigned long filesize; /* without headers; in bytes */
     unsigned long length;   /* song length in ms */
     unsigned long elapsed;  /* ms played */
@@ -241,7 +239,7 @@ struct mp3entry {
     int lead_trim;          /* Number of samples to skip at the beginning */
     int tail_trim;          /* Number of samples to remove from the end */
 
-    /* Added for Vorbis */
+    /* Added for Vorbis, used by mp4 parser as well. */
     unsigned long samples;  /* number of samples in track */
 
     /* MP3 stream specific info */
diff --git a/apps/metadata/mp3.c b/apps/metadata/mp3.c
index 9309242..feb1a52 100644
--- a/apps/metadata/mp3.c
+++ b/apps/metadata/mp3.c
@@ -100,10 +100,9 @@ static int getsonglength(int fd, struct mp3entry *entry)
         }
     }
 
-    entry->bitrate = info.bitrate;
+    entry->bitrate   = info.bitrate;
     entry->frequency = info.frequency;
-    entry->version = info.version;
-    entry->layer = info.layer;
+    entry->layer     = info.layer;
     switch(entry->layer) {
 #if CONFIG_CODEC==SWCODEC
         case 0:
@@ -149,8 +148,6 @@ static int getsonglength(int fd, struct mp3entry *entry)
 
     memcpy(entry->toc, info.toc, sizeof(info.toc));
 
-    entry->vbr_header_pos = info.vbr_header_pos;
-
     /* Update the seek point for the first playable frame */
     entry->first_frame_offset = bytecount;
     logf("First frame is at %lx", entry->first_frame_offset);
diff --git a/apps/mp3data.c b/apps/mp3data.c
index 4420860..f5ef122 100644
--- a/apps/mp3data.c
+++ b/apps/mp3data.c
@@ -142,8 +142,10 @@ static bool mp3headerinfo(struct mp3info *info, unsigned long header)
     if (info->layer == 3)
         return false;
 
+/* Rockbox: not used
     info->protection = (header & PROTECTION_MASK) ? true : false;
-    
+*/
+
     /* Bitrate */
     bitindex = (header & BITRATE_MASK) >> 12;
     info->bitrate = bitrate_table[info->version][info->layer][bitindex];
@@ -187,14 +189,15 @@ static bool mp3headerinfo(struct mp3info *info, unsigned long header)
     info->ft_num = 1000 * info->ft_den * info->frame_samples / info->frequency;
 
     info->channel_mode = (header & CHANNELMODE_MASK) >> 6;
+/* Rockbox: not used
     info->mode_extension = (header & MODE_EXT_MASK) >> 4;
     info->emphasis = header & EMPHASIS_MASK;
-
+*/
     VDEBUGF( "Header: %08lx, Ver %d, lay %d, bitr %d, freq %ld, "
-            "chmode %d, mode_ext %d, emph %d, bytes: %d time: %d/%d\n",
+            "chmode %d, bytes: %d time: %d/%d\n",
             header, info->version, info->layer+1, info->bitrate,
-            info->frequency, info->channel_mode, info->mode_extension,
-            info->emphasis, info->frame_size, info->ft_num, info->ft_den);
+            info->frequency, info->channel_mode,
+            info->frame_size, info->ft_num, info->ft_den);
     return true;
 }
 
@@ -405,8 +408,9 @@ int get_mp3file_info(int fd, struct mp3info *info)
         /* DEBUGF("Xing/Info header\n"); */
 
         /* Remember where in the file the Xing header is */
+/* Rockbox: not used
         info->vbr_header_pos = lseek(fd, 0, SEEK_CUR) - info->frame_size;
-        
+*/
         /* We want to skip the Xing frame when playing the stream */
         bytecount += info->frame_size;
         
@@ -420,7 +424,10 @@ int get_mp3file_info(int fd, struct mp3info *info)
             return -5;
 
         /* Is it a VBR file? */
-        info->is_vbr = info->is_xing_vbr = !memcmp(vbrheader, "Xing", 4);
+        info->is_vbr = !memcmp(vbrheader, "Xing", 4);
+/* Rockbox: not used
+        info->is_xing_vbr = info->is_vbr;
+*/
 
         if (vbrheader[7] & VBR_FRAMES_FLAG) /* Is the frame count there? */
         {
@@ -506,7 +513,9 @@ int get_mp3file_info(int fd, struct mp3info *info)
         
         /* Yes, it is a FhG VBR file */
         info->is_vbr = true;
+/* Rockbox: not used
         info->is_vbri_vbr = true;
+*/
         info->has_toc = false; /* We don't parse the TOC (yet) */
 
         info->byte_count = bytes2int(vbrheader[10], vbrheader[11],
diff --git a/apps/mp3data.h b/apps/mp3data.h
index 2a6a27a..0fccd62 100644
--- a/apps/mp3data.h
+++ b/apps/mp3data.h
@@ -30,27 +30,21 @@ struct mp3info {
     /* Standard MP3 frame header fields */
     int version;
     int layer;
-    bool protection;
     int bitrate;
     long frequency;
     int padding;
     int channel_mode;
-    int mode_extension;
-    int emphasis;
     int frame_size;   /* Frame size in bytes */
-    int frame_samples; /* Samples per frame */
+    int frame_samples;/* Samples per frame */
     int ft_num;       /* Numerator of frametime in milliseconds */
     int ft_den;       /* Denominator of frametime in milliseconds */
 
     bool is_vbr;      /* True if the file is VBR */
     bool has_toc;     /* True if there is a VBR header in the file */
-    bool is_xing_vbr; /* True if the VBR header is of Xing type */
-    bool is_vbri_vbr; /* True if the VBR header is of VBRI type */
     unsigned char toc[100];
     unsigned long frame_count; /* Number of frames in the file (if VBR) */
     unsigned long byte_count;  /* File size in bytes */
     unsigned long file_time;   /* Length of the whole file in milliseconds */
-    unsigned long vbr_header_pos;
     int enc_delay;    /* Encoder delay, fetched from LAME header */
     int enc_padding;  /* Padded samples added to last frame. LAME header */
 };