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qcap/videocapture: Store capabilities information. 

Signed-off-by: Jactry Zeng <jzeng@codeweavers.com>
Signed-off-by: Zebediah Figura <z.figura12@gmail.com>
Signed-off-by: Alexandre Julliard <julliard@winehq.org>
This commit is contained in:
Jactry Zeng 2020-04-28 11:55:16 -05:00 committed by Alexandre Julliard
parent 2531b927c7
commit 1990df8511
1 changed files with 119 additions and 7 deletions
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126
dlls/qcap/v4l.c
View File

@ -93,9 +93,19 @@ static BOOL video_init(void)
#endif
}
struct caps
{
__u32 pixelformat;
AM_MEDIA_TYPE media_type;
VIDEOINFOHEADER video_info;
VIDEO_STREAM_CONFIG_CAPS config;
};
struct _Capture
{
UINT width, height, bitDepth, fps, outputwidth, outputheight;
struct caps *caps;
LONG caps_count;
BOOL swresize;
struct strmbase_source *pin;
@ -116,13 +126,14 @@ static int xioctl(int fd, int request, void * arg)
return r;
}
HRESULT qcap_driver_destroy(Capture *capBox)
HRESULT qcap_driver_destroy(Capture *device)
{
TRACE("%p\n", capBox);
if (device->fd != -1)
video_close(device->fd);
if (device->caps_count)
heap_free(device->caps);
heap_free(device);
if( capBox->fd != -1 )
video_close(capBox->fd);
CoTaskMemFree(capBox);
return S_OK;
}
@ -495,18 +506,55 @@ void qcap_driver_cleanup_stream(Capture *device)
ERR("Failed to decommit allocator, hr %#x.\n", hr);
}
static void fill_caps(__u32 pixelformat, __u32 width, __u32 height,
__u32 max_fps, __u32 min_fps, struct caps *caps)
{
LONG depth = 24;
caps->video_info.dwBitRate = width * height * depth * max_fps;
caps->video_info.bmiHeader.biSize = sizeof(caps->video_info.bmiHeader);
caps->video_info.bmiHeader.biWidth = width;
caps->video_info.bmiHeader.biHeight = height;
caps->video_info.bmiHeader.biPlanes = 1;
caps->video_info.bmiHeader.biBitCount = depth;
caps->video_info.bmiHeader.biCompression = BI_RGB;
caps->video_info.bmiHeader.biSizeImage = width * height * depth / 8;
caps->media_type.majortype = MEDIATYPE_Video;
caps->media_type.subtype = MEDIASUBTYPE_RGB24;
caps->media_type.bFixedSizeSamples = TRUE;
caps->media_type.bTemporalCompression = FALSE;
caps->media_type.lSampleSize = width * height * depth / 8;
caps->media_type.formattype = FORMAT_VideoInfo;
caps->media_type.pUnk = NULL;
caps->media_type.cbFormat = sizeof(VIDEOINFOHEADER);
/* We reallocate the caps array, so pbFormat has to be set after all caps
* have been enumerated. */
caps->config.MaxFrameInterval = 10000000 * max_fps;
caps->config.MinFrameInterval = 10000000 * min_fps;
caps->config.MaxOutputSize.cx = width;
caps->config.MaxOutputSize.cy = height;
caps->config.MinOutputSize.cx = width;
caps->config.MinOutputSize.cy = height;
caps->config.guid = FORMAT_VideoInfo;
caps->config.MinBitsPerSecond = width * height * depth * min_fps;
caps->config.MaxBitsPerSecond = width * height * depth * max_fps;
caps->pixelformat = pixelformat;
}
Capture *qcap_driver_init(struct strmbase_source *pin, USHORT card)
{
struct v4l2_frmsizeenum frmsize = {0};
struct v4l2_capability caps = {{0}};
struct v4l2_format format = {0};
Capture *device = NULL;
BOOL have_libv4l2;
char path[20];
int fd;
int fd, i;
have_libv4l2 = video_init();
if (!(device = CoTaskMemAlloc(sizeof(*device))))
if (!(device = heap_alloc_zero(sizeof(*device))))
return NULL;
sprintf(path, "/dev/video%i", card);
@ -559,6 +607,70 @@ Capture *qcap_driver_init(struct strmbase_source *pin, USHORT card)
goto error;
}
format.fmt.pix.pixelformat = V4L2_PIX_FMT_BGR24;
if (xioctl(fd, VIDIOC_TRY_FMT, &format) == -1
|| format.fmt.pix.pixelformat != V4L2_PIX_FMT_BGR24)
{
ERR("This device doesn't support V4L2_PIX_FMT_BGR24 format.\n");
goto error;
}
frmsize.pixel_format = V4L2_PIX_FMT_BGR24;
while (xioctl(fd, VIDIOC_ENUM_FRAMESIZES, &frmsize) != -1)
{
struct v4l2_frmivalenum frmival = {0};
__u32 max_fps = 30, min_fps = 30;
struct caps *new_caps;
frmival.pixel_format = format.fmt.pix.pixelformat;
if (frmsize.type == V4L2_FRMSIZE_TYPE_DISCRETE)
{
frmival.width = frmsize.discrete.width;
frmival.height = frmsize.discrete.height;
}
else if (frmsize.type == V4L2_FRMSIZE_TYPE_STEPWISE)
{
frmival.width = frmsize.stepwise.max_width;
frmival.height = frmsize.stepwise.min_height;
}
else
{
FIXME("Unhandled frame size type: %d.\n", frmsize.type);
continue;
}
if (xioctl(fd, VIDIOC_ENUM_FRAMEINTERVALS, &frmival) != -1)
{
if (frmival.type == V4L2_FRMIVAL_TYPE_DISCRETE)
{
max_fps = frmival.discrete.denominator / frmival.discrete.numerator;
min_fps = max_fps;
}
else if (frmival.type == V4L2_FRMIVAL_TYPE_STEPWISE
|| frmival.type == V4L2_FRMIVAL_TYPE_CONTINUOUS)
{
max_fps = frmival.stepwise.max.denominator / frmival.stepwise.max.numerator;
min_fps = frmival.stepwise.min.denominator / frmival.stepwise.min.numerator;
}
}
else
ERR("Failed to get fps: %s.\n", strerror(errno));
new_caps = heap_realloc(device->caps, (device->caps_count + 1) * sizeof(*device->caps));
if (!new_caps)
goto error;
device->caps = new_caps;
fill_caps(format.fmt.pix.pixelformat, frmsize.discrete.width, frmsize.discrete.height,
max_fps, min_fps, &device->caps[device->caps_count]);
device->caps_count++;
frmsize.index++;
}
/* We reallocate the caps array, so we have to delay setting pbFormat. */
for (i = 0; i < device->caps_count; ++i)
device->caps[i].media_type.pbFormat = (BYTE *)&device->caps[i].video_info;
format.fmt.pix.pixelformat = V4L2_PIX_FMT_BGR24;
if (xioctl(fd, VIDIOC_S_FMT, &format) == -1
|| format.fmt.pix.pixelformat != V4L2_PIX_FMT_BGR24)