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qtcapture: better retrieval for picture sizes.

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- Hopefully also fixes PAR and usage of older iSights (different fourcc)
- Note that the iSight reports itself as a 320x240 (NOT 640x480) device by default.
(cherry picked from commit ef585031b4c58db3cc333a96c6cbb6c07d85f8b5)
This commit is contained in:
Derk-Jan Hartman 2008-09-03 14:11:30 +02:00
parent d46ea10281
commit 434acb18e8
1 changed files with 45 additions and 22 deletions
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67
modules/access/qtcapture.m
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@ -171,6 +171,7 @@ static int qtchroma_to_fourcc( int i_qt )
{
/* Raw data types */
{ k422YpCbCr8CodecType, VLC_FOURCC('U','Y','V','Y') },
{ kComponentVideoCodecType,VLC_FOURCC('Y','U','Y','2') },
{ 0, 0 }
};
int i;
@ -215,8 +216,6 @@ static int Open( vlc_object_t *p_this )
memset( p_sys, 0, sizeof( demux_sys_t ) );
memset( &fmt, 0, sizeof( es_format_t ) );
msg_Dbg( p_demux, "QTCapture Probed" );
QTCaptureDeviceInput * input = nil;
NSError *o_returnedError;
@ -252,10 +251,51 @@ static int Open( vlc_object_t *p_this )
p_sys->output = [[VLCDecompressedVideoOutput alloc] init];
/* Hack - This will lower CPU consumption for some reason */
/* Get the formats */
NSArray *format_array = [p_sys->device formatDescriptions];
QTFormatDescription* camera_format = NULL;
for( int k=0; k < [format_array count]; k++ )
{
camera_format = [format_array objectAtIndex: k];
NSLog( [camera_format localizedFormatSummary] );
NSLog( [[camera_format formatDescriptionAttributes] description] );
}
if( [format_array count] )
camera_format = [format_array objectAtIndex: 0];
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;
}
/* Now we can init */
es_format_Init( &fmt, VIDEO_ES, chroma );
NSSize encoded_size = [[camera_format attributeForKey:QTFormatDescriptionVideoEncodedPixelsSizeAttribute] sizeValue];
NSSize display_size = [[camera_format attributeForKey:QTFormatDescriptionVideoCleanApertureDisplaySizeAttribute] sizeValue];
NSSize par_size = [[camera_format attributeForKey:QTFormatDescriptionVideoProductionApertureDisplaySizeAttribute] sizeValue];
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 )
{
fmt.video.i_aspect = par_size.width * VOUT_ASPECT_FACTOR / encoded_size.width ;
}
NSLog( @"encoded_size %d %d", (int)encoded_size.width, (int)encoded_size.height );
NSLog( @"display_size %d %d", (int)display_size.width, (int)display_size.height );
NSLog( @"PAR size %d %d", (int)par_size.width, (int)par_size.height );
[p_sys->output setPixelBufferAttributes: [NSDictionary dictionaryWithObjectsAndKeys:
[NSNumber numberWithInt:480], kCVPixelBufferHeightKey,
[NSNumber numberWithInt:640], kCVPixelBufferWidthKey, nil]];
[NSNumber numberWithInt: p_sys->height], kCVPixelBufferHeightKey,
[NSNumber numberWithInt: p_sys->width], kCVPixelBufferWidthKey,
[NSNumber numberWithBool:YES], (id)kCVPixelBufferOpenGLCompatibilityKey,
nil]];
p_sys->session = [[QTCaptureSession alloc] init];
@ -275,23 +315,6 @@ static int Open( vlc_object_t *p_this )
[p_sys->session startRunning];
int qtchroma = [[[p_sys->device formatDescriptions] objectAtIndex: 0] formatType]; /* FIXME */
int chroma = qtchroma_to_fourcc( qtchroma );
if( !chroma )
{
msg_Err( p_demux, "Unknown qt chroma %4.4s provided by camera", (char*)&qtchroma );
goto error;
}
/* Now we can init */
es_format_Init( &fmt, VIDEO_ES, chroma );
NSSize size = [[p_sys->device attributeForKey:QTFormatDescriptionVideoEncodedPixelsSizeAttribute] sizeValue];
p_sys->width = fmt.video.i_width = 640;/* size.width; FIXME */
p_sys->height = fmt.video.i_height = 480;/* size.height; FIXME */
msg_Dbg( p_demux, "added new video es %4.4s %dx%d",
(char*)&fmt.i_codec, fmt.video.i_width, fmt.video.i_height );