flynx/ImageGrid
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merged first working preview generator.

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issues:
- the code is still not usable (almost all things that need to be working are working but need to reorganize the code into the final architecture).
- PIL is very slow at resizing, do several plugins (IrfanView, ...) to do the job.

Signed-off-by: Alex A. Naanou <alex.nanou@gmail.com>
This commit is contained in:
Alex A. Naanou 2012-02-02 15:04:06 +04:00
parent 7faf939f52
commit 757ea6c99b
1 changed files with 31 additions and 11 deletions
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42
index.py
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@ -1,7 +1,7 @@
#======================================================================= #=======================================================================
__version__ = '''0.0.01''' __version__ = '''0.0.01'''
__sub_version__ = '''20120131030435''' __sub_version__ = '''20120202150737'''
__copyright__ = '''(c) Alex A. Naanou 2011''' __copyright__ = '''(c) Alex A. Naanou 2011'''
@ -480,11 +480,11 @@ class IndexWithCache(Index):
#----------------------------------------------------------------------- #-----------------------------------------------------------------------
##!!! test implementation: rewrite... ##!!! test implementation: rewrite...
def build_image_cache(ic, min_rating, dest): import pyexiv2 as metadata
import pyexiv2 as metadata import shutil
import shutil import Image
import Image
def build_image_cache(ic, min_rating, dest, tmp_path, preview_size=900):
# build preview cache for 5* images... # build preview cache for 5* images...
for k, e in ic.items(): for k, e in ic.items():
name = e.get('name', None) name = e.get('name', None)
@ -515,16 +515,36 @@ def build_image_cache(ic, min_rating, dest):
# get the jpeg... # get the jpeg...
if jpegs is None: if jpegs is None:
if raws is None: if raws is None:
## print '### can\'t find raws for %s' % name ## print '### can\'t find raws for %s' % name
res['missing raw'] += [k] res['missing raw'] += [k]
continue continue
raw_path = raws[0][0][0] + '\\' + os.path.join(*(raws[0][0][1:] + [name])) + '.' + raws[0][1] raw_path = raws[0][0][0] + '\\' + os.path.join(*(raws[0][0][1:] + [name])) + '.' + raws[0][1]
## print '>> missing preview %s.jpg' % name ## print '>> missing preview %s.jpg' % name
res['missing preview'] += [raw_path] res['missing preview'] += [raw_path]
##!!! generate jpegs... ##!!! generate jpegs...
##!!! extract preview... raw = metadata.ImageMetadata(raw_path)
##!!! resize preview... raw.read()
##!!! save preview...
for i, p in enumerate(raw.previews):
if max(p.dimensions) >= preview_size:
# extract preview...
tmp_preview_path = os.path.join(tmp_path, '%s-%s%s' % (name, i, p.extension))
open(tmp_preview_path, 'wb').write(p.data)
# resize preview...
orig = Image.open(tmp_preview_path)
scale = preview_size/float(max(*orig.size))
print 'generating preview...'
preview = orig.resize((int(orig.size[0]*scale), int(orig.size[1]*scale)), Image.ANTIALIAS)
# save preview...
print 'saving preview: %s' % name
preview_path = os.path.join(dest, k + '-' + name + '.jpg')
preview.save(preview_path)
# copy metadata...
##!!! need to write metadata to all previews...
preview_metadata = metadata.ImageMetadata(preview_path)
preview_metadata.read()
raw.copy(preview_metadata)
preview_metadata.write()
else: else:
jpg_path = jpegs[0][0][0] + '\\' + os.path.join(*(jpegs[0][0][1:] + [name])) + '.' + jpegs[0][1] jpg_path = jpegs[0][0][0] + '\\' + os.path.join(*(jpegs[0][0][1:] + [name])) + '.' + jpegs[0][1]
# copy the jpeg to the cache... # copy the jpeg to the cache...
@ -605,7 +625,7 @@ if __name__ == '__main__':
##!!! revise... ##!!! revise...
res = build_image_cache(ic, 5, os.path.join('test', 'index', 'cache')) res = build_image_cache(ic, 5, os.path.join('test', 'index', 'cache'), os.path.join('test', 'tmp'))
os.remove(os.path.join('test', 'index', 'index.pack')) os.remove(os.path.join('test', 'index', 'index.pack'))