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GSoC
GSoC2018
macOS
vlc
Commits
9a46b63e
Commit
9a46b63e
authored
May 07, 2011
by
Katsushi Kobayashi
Committed by
Felix Paul Kühne
May 07, 2011
Browse files
qtcapture: implement video capture device selection
manually merged and tweaked
parent
c1cbe147
Changes
1
Hide whitespace changes
Inline
Side-by-side
modules/access/qtcapture.m
View file @
9a46b63e
...
...
@@ -36,10 +36,14 @@
#include
<vlc_demux.h>
#include
<vlc_interface.h>
#include
<vlc_dialog.h>
#include
<vlc_access.h>
#import <QTKit/QTKit.h>
#import <CoreAudio/CoreAudio.h>
#define QTC_WIDTH 640
#define QTC_HEIGHT 480
/*****************************************************************************
* Local prototypes
*****************************************************************************/
...
...
@@ -123,6 +127,7 @@ vlc_module_end ()
{
CVImageBufferRef
imageBuffer
;
mtime_t
pts
;
void
*
pixels
;
if
(
!
currentImageBuffer
||
currentPts
==
previousPts
)
return
0
;
...
...
@@ -130,17 +135,22 @@ vlc_module_end ()
@synchronized
(
self
)
{
imageBuffer
=
CVBufferRetain
(
currentImageBuffer
);
pts
=
previousPts
=
currentPts
;
CVPixelBufferLockBaseAddress
(
imageBuffer
,
0
);
void
*
pixels
=
CVPixelBufferGetBaseAddress
(
imageBuffer
);
memcpy
(
buffer
,
pixels
,
CVPixelBufferGetBytesPerRow
(
imageBuffer
)
*
CVPixelBufferGetHeight
(
imageBuffer
)
);
CVPixelBufferUnlockBaseAddress
(
imageBuffer
,
0
);
if
(
imageBuffer
){
pts
=
previousPts
=
currentPts
;
CVPixelBufferLockBaseAddress
(
imageBuffer
,
0
);
pixels
=
CVPixelBufferGetBaseAddress
(
imageBuffer
);
if
(
pixels
)
memcpy
(
buffer
,
pixels
,
CVPixelBufferGetBytesPerRow
(
imageBuffer
)
*
CVPixelBufferGetHeight
(
imageBuffer
));
CVPixelBufferUnlockBaseAddress
(
imageBuffer
,
0
);
}
}
CVBufferRelease
(
imageBuffer
);
return
currentPts
;
if
(
pixels
)
return
currentPts
;
else
return
0
;
}
@end
...
...
@@ -196,6 +206,7 @@ static int Open( vlc_object_t *p_this )
int
i_width
;
int
i_height
;
int
result
=
0
;
char
*
psz_uid
=
NULL
;
/* Only when selected */
if
(
*
p_demux
->
psz_access
==
'\0'
)
...
...
@@ -203,6 +214,11 @@ static int Open( vlc_object_t *p_this )
NSAutoreleasePool
*
pool
=
[[
NSAutoreleasePool
alloc
]
init
];
if
(
p_demux
->
psz_location
&&
*
p_demux
->
psz_location
)
psz_uid
=
strdup
(
p_demux
->
psz_location
);
msg_Dbg
(
p_demux
,
"qtcapture uid = %s"
,
psz_uid
);
NSString
*
qtk_currdevice_uid
=
[[
NSString
alloc
]
initWithFormat
:
@"%s"
,
psz_uid
];
/* Set up p_demux */
p_demux
->
pf_demux
=
Demux
;
p_demux
->
pf_control
=
Control
;
...
...
@@ -214,12 +230,38 @@ static int Open( vlc_object_t *p_this )
if
(
!
p_sys
)
return
VLC_ENOMEM
;
NSArray
*
myVideoDevices
=
[[[
QTCaptureDevice
inputDevicesWithMediaType
:
QTMediaTypeVideo
]
arrayByAddingObjectsFromArray
:[
QTCaptureDevice
inputDevicesWithMediaType
:
QTMediaTypeMuxed
]]
retain
];
if
([
myVideoDevices
count
]
==
0
)
{
dialog_FatalWait
(
p_demux
,
_
(
"No Input device found"
),
_
(
"Your Mac does not seem to be equipped with a suitable input device. "
"Please check your connectors and drivers."
)
);
msg_Err
(
p_demux
,
"Can't find any Video device"
);
goto
error
;
}
int
ivideo
;
for
(
ivideo
=
0
;
ivideo
<
[
myVideoDevices
count
];
ivideo
++
){
QTCaptureDevice
*
qtk_device
;
qtk_device
=
[
myVideoDevices
objectAtIndex
:
ivideo
];
msg_Dbg
(
p_demux
,
"qtcapture %d/%lu %s %s"
,
ivideo
,
[
myVideoDevices
count
],
[[
qtk_device
localizedDisplayName
]
UTF8String
],
[[
qtk_device
uniqueID
]
UTF8String
]);
if
([[[
qtk_device
uniqueID
]
stringByTrimmingCharactersInSet
:[
NSCharacterSet
whitespaceCharacterSet
]]
isEqualToString
:
qtk_currdevice_uid
]){
break
;
}
}
memset
(
&
fmt
,
0
,
sizeof
(
es_format_t
)
);
QTCaptureDeviceInput
*
input
=
nil
;
NSError
*
o_returnedError
;
p_sys
->
device
=
[
QTCaptureDevice
defaultInputDeviceWithMediaType
:
QTMediaTypeVideo
];
if
(
ivideo
<
[
myVideoDevices
count
]
)
p_sys
->
device
=
[
myVideoDevices
objectAtIndex
:
ivideo
];
else
{
/* cannot found designated device, fall back to open default device */
msg_Dbg
(
p_demux
,
"Cannot find designated uid device as %s, falling back to default."
,
[
qtk_currdevice_uid
UTF8String
]);
p_sys
->
device
=
[
QTCaptureDevice
defaultInputDeviceWithMediaType
:
QTMediaTypeVideo
];
}
if
(
!
p_sys
->
device
)
{
dialog_FatalWait
(
p_demux
,
_
(
"No Input device found"
),
...
...
@@ -266,12 +308,7 @@ static int Open( vlc_object_t *p_this )
else
goto
error
;
int
qtchroma
=
[
camera_format
formatType
];
int
chroma
=
qtchroma_to_fourcc
(
qtchroma
);
if
(
!
chroma
)
{
msg_Err
(
p_demux
,
"Unknown qt chroma %4.4s provided by camera"
,
(
char
*
)
&
qtchroma
);
goto
error
;
}
int
chroma
=
VLC_CODEC_UYVY
;
/* Now we can init */
es_format_Init
(
&
fmt
,
VIDEO_ES
,
chroma
);
...
...
@@ -280,6 +317,13 @@ static int Open( vlc_object_t *p_this )
NSSize
display_size
=
[[
camera_format
attributeForKey
:
QTFormatDescriptionVideoCleanApertureDisplaySizeAttribute
]
sizeValue
];
NSSize
par_size
=
[[
camera_format
attributeForKey
:
QTFormatDescriptionVideoProductionApertureDisplaySizeAttribute
]
sizeValue
];
encoded_size
.
width
=
QTC_WIDTH
;
encoded_size
.
height
=
QTC_HEIGHT
;
display_size
.
width
=
QTC_WIDTH
;
display_size
.
height
=
QTC_HEIGHT
;
par_size
.
width
=
QTC_WIDTH
;
par_size
.
height
=
QTC_HEIGHT
;
fmt
.
video
.
i_width
=
p_sys
->
width
=
encoded_size
.
width
;
fmt
.
video
.
i_height
=
p_sys
->
height
=
encoded_size
.
height
;
if
(
par_size
.
width
!=
encoded_size
.
width
)
...
...
@@ -293,6 +337,7 @@ static int Open( vlc_object_t *p_this )
msg_Dbg
(
p_demux
,
"PAR size %i %i"
,
(
int
)
par_size
.
width
,
(
int
)
par_size
.
height
);
[
p_sys
->
output
setPixelBufferAttributes
:
[
NSDictionary
dictionaryWithObjectsAndKeys
:
[
NSNumber
numberWithUnsignedInt
:
kCVPixelFormatType_422YpCbCr8
],
(
id
)
kCVPixelBufferPixelFormatTypeKey
,
[
NSNumber
numberWithInt
:
p_sys
->
height
],
kCVPixelBufferHeightKey
,
[
NSNumber
numberWithInt
:
p_sys
->
width
],
kCVPixelBufferWidthKey
,
[
NSNumber
numberWithBool
:
YES
],
(
id
)
kCVPixelBufferOpenGLCompatibilityKey
,
...
...
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