This allows the PC to access thumbnails in JPEG files over MTP/PTP
Bug: 3219495
Change-Id: I4964f8b4826dffb7f0f77464ec91bd2e97a2f007
Signed-off-by: Mike Lockwood <lockwood@android.com>
MTP does not support partial writes of files (the entire file must be transferred at once).
This makes it impossible to implement a FUSE file system for MTP
with acceptable performance.
To fix this problem, this change adds extended MTP operations to allow
partial writes to files:
SendPartialObject - allows writing a subset of a file, or appending to the end of a file
TruncateObject - allows changing the size of a file
BeginEditObject - must be called before using SendPartialObject and TruncateObject
EndEditObject - commits changes to a file after it has been edited with SendPartialObject or TruncateObject
We also add GetPartialObject64, which is the same as GetPartialObject
but has a 64 bit offset rather than 32.
Change-Id: I4b110748b97ae05cdc8aab02ecdbbbeb263f7840
Signed-off-by: Mike Lockwood <lockwood@android.com>
Also removed an unnecessary parameter to MtpDatabase.endSendobject()
BUG: 3352142
Change-Id: I6fd812dcba4814956bc8bc1cbd6bd5c868197790
Signed-off-by: Mike Lockwood <lockwood@android.com>
In particular, make sure the parent is a folder and make sure file
does not already exist.
Change-Id: Ifa870faba3285f03a92025d9e82f93fed78a761c
Signed-off-by: Mike Lockwood <lockwood@android.com>
In this initial implementation we only support fetching one property at a time.
Support depth = 0 (single object) or depth = 1 (all objects in a directory)
Reimplemented GetObjectPropValue on top of GetObjectPropList, since the former
is a special case of the latter.
Change-Id: Ia76ee61741d6ee3902b5c5d9fc094cf86dfaf650
Signed-off-by: Mike Lockwood <lockwood@google.com>
GetObjectPropValue and SetObjectPropValue are disabled until I figure out
why Windows doesn't like what I have done.
Change-Id: I74e945ef3ea031f6d46f4ebaa8df815da0a5c3ed
Signed-off-by: Mike Lockwood <lockwood@android.com>
MTP playlists now correspond to playlists in the media provider
(like those created by the Music app).
Change-Id: I085cb3cff003037ad62f0e297fb0cfd3047cb3a2
Signed-off-by: Mike Lockwood <lockwood@android.com>
Return MTP response codes instead of booleans for success or failure.
Remove some unused code.
Change-Id: I82ce80a4d7779233264e3caf139ebd0cece12f5c
Signed-off-by: Mike Lockwood <lockwood@android.com>
MTP file transfers happen in two stages. The SendObjectInfo command sends
some information about the file and reserves an ObjectHandle for the new file.
The file transfer is then performed using the SendObject command.
To support this in the media provider, MtpDatabase.beginSendObject receives
the information from SendObjectInfo and creates an row for it in the MTP objects
table for the new file. After the file transfer has completed, then
MtpDatabase.endSendObject is called. In endSendObject, we run the media scanner
on the new file, which will add a row to the images, audio, video
or audio playlist table.
To avoid the media scanner creating a second row for the file in the MTP objects
table, we pass the ObjectHandle created in beginSendObject to the media scanner,
which then passes it to the media provider via the content values when it
performs its insert.
Change-Id: I1ebcc63d6bd4404b0d3a93c703a9d3c097381d3a
Signed-off-by: Mike Lockwood <lockwood@android.com>
Rename existing test database to MtpSqliteDatabase
This is the first step in transitioning to using the media provider database
Change-Id: I5f36c854c6e76a79137c267b000a52ced803776c
Signed-off-by: Mike Lockwood <lockwood@android.com>
New media scanner test program
Media scanner now cleans up after files that no longer exist
Separate database table for audio files
Extract metadata from audio files with libstagefright
Change-Id: I2bd0fe877836c741658e72fcfeb89c11be0d9b41
Signed-off-by: Mike Lockwood <lockwood@android.com>
This change includes work in progress on a C++ library for both host and device
MTP and PTP support.
Currently the makefile builds two test programs:
mtptest - a command line test program that implements a small subset of device side MTP.
Requires a kernel driver that has not been checked in yet.
ptptest - a host tool to test USB host support for detecting and communicating with
digital cameras over PTP. Runs on Linux host.
Later this will be reformulated as a native library that will be used in the media process.
Change-Id: I81aab279975b600b59d99013ab97f9adf0b58da7
Signed-off-by: Mike Lockwood <lockwood@android.com>
