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Allow a device to determine the compression quality setting for thumbnail generation

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This commit is contained in:
Charles Haley 2013-09-15 19:07:47 +02:00
parent 7d77e8fe98
commit d69211e3b1
1 changed files with 29 additions and 4 deletions
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33
src/calibre/devices/smart_device_app/driver.py
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@ -202,8 +202,9 @@ class SMART_DEVICE_APP(DeviceConfig, DevicePlugin):
# making this number effectively around 10 to 15 larger.
PATH_FUDGE_FACTOR = 40
THUMBNAIL_HEIGHT = 160
DEFAULT_THUMBNAIL_HEIGHT = 160
THUMBNAIL_HEIGHT = 160
DEFAULT_THUMBNAIL_HEIGHT = 160
THUMBNAIL_COMPRESSION_QUALITY = 70
PREFIX = ''
BACKLOADING_ERROR_MESSAGE = None
@ -292,12 +293,22 @@ class SMART_DEVICE_APP(DeviceConfig, DevicePlugin):
'particular IP address. The driver will listen only on the '
'entered address, and this address will be the one advertized '
'over mDNS (bonjour).') + '</p>',
_('Replace books with the same calibre identifier') + ':::<p>' +
_('Replace books with same calibre ID') + ':::<p>' +
_('Use this option to overwrite a book on the device if that book '
'has the same calibre identifier as the book being sent. The file name of the '
'book will not change even if the save template produces a '
'different result. Using this option in most cases prevents '
'having multiple copies of a book on the device.') + '</p>',
_('Cover thumbnail compression quality') + ':::<p>' +
_('Use this option to control the size and quality of the cover '
'file sent to the device. It must be between 50 and 99. '
'The larger the number the higher quality the cover, but also '
'the larger the file. For example, changing this from 70 to 90 '
'results in a much better cover that is approximately 2.5 '
'times as big. To see the changes you must force calibre '
'to resend metadata to the device, either by changing '
'the metadata for the book (updating the last modification '
'time) or resending the book itself.') + '</p>',
]
EXTRA_CUSTOMIZATION_DEFAULT = [
False, '',
@ -306,7 +317,7 @@ class SMART_DEVICE_APP(DeviceConfig, DevicePlugin):
False, '',
'', '',
True, '',
True
True, '70'
]
OPT_AUTOSTART = 0
OPT_PASSWORD = 2
@ -317,6 +328,7 @@ class SMART_DEVICE_APP(DeviceConfig, DevicePlugin):
OPT_AUTODISCONNECT = 10
OPT_FORCE_IP_ADDRESS = 11
OPT_OVERWRITE_BOOKS_UUID = 12
OPT_COMPRESSION_QUALITY = 13
def __init__(self, path):
@ -1288,6 +1300,19 @@ class SMART_DEVICE_APP(DeviceConfig, DevicePlugin):
self.client_can_stream_metadata = False
self.client_wants_uuid_file_names = False
compression_quality_ok = True
try:
cq = int(self.settings().extra_customization[self.OPT_COMPRESSION_QUALITY])
if cq < 50 or cq > 99:
compression_quality_ok = False
except:
compression_quality_ok = False
if not compression_quality_ok:
self.THUMBNAIL_COMPRESSION_QUALITY = 70
message = 'Bad compression quality setting. It must be a number between 50 and 99'
self._debug(message)
return message
message = None
try:
self.listen_socket = socket.socket(socket.AF_INET, socket.SOCK_STREAM)