[tracker] Revert "tracker-extract, png: Fix DLNA profiles"

[Carlos Garnacho <carlosg src gnome org>]

commit e48537eb7e25ed9308ad691d92e668b2847a6b31
Author: Carlos Garnacho <carlosg gnome org>
Date:   Fri Jan 27 11:48:55 2017 +0100

    Revert "tracker-extract, png: Fix DLNA profiles"
    
    This reverts commit 89baaa45a70e5d50462bbd4e5b89dbb2c221e701.
    
    The reasons to classify all pngs as PNG_LRG went away with the maemo
    bugzilla. The reason isn't clear and seems to go against the DNLA spec
    (at least, how gupnp-dlna understands it, which Tracker took inspiration
    from). This commit also made the if (profile)... check below useless,
    which raised warnings in Coverity.
    
    Coverity ID: 1298205
    
    https://bugzilla.gnome.org/show_bug.cgi?id=777819

 src/tracker-extract/tracker-extract-png.c |   10 +++++++++-
 1 files changed, 9 insertions(+), 1 deletions(-)
---
diff --git a/src/tracker-extract/tracker-extract-png.c b/src/tracker-extract/tracker-extract-png.c
index d392365..d77dc9e 100644
--- a/src/tracker-extract/tracker-extract-png.c
+++ b/src/tracker-extract/tracker-extract-png.c
@@ -587,7 +587,15 @@ guess_dlna_profile (gint          depth,
                *dlna_mimetype = NULL;
        }
 
-       profile = "PNG_LRG";
+       if (width == 120 && height == 120) {
+               profile = "PNG_LRG_ICO";
+       } else if (width == 48 && height == 48) {
+               profile = "PNG_SM_ICO";
+       } else if (width <= 160 && height <= 160) {
+               profile = "PNG_TN";
+       } else if (depth <= 32 && width <= 4096 && height <= 4096) {
+               profile = "PNG_LRG";
+       }
 
        if (profile) {
                if (dlna_profile) {