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mfvideosrc: Handle I420/IYUV subtypes for UWP cases

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Microsoft defines two I420 formats, one is I420, and the other is
IYUV (but both are same, just names are different).
Since both will be converted to GST_VIDEO_FORMAT_I420,
we should check both I420 and IYUV subtypes during
GstVideoFormat to Microsoft's format conversion.

Part-of: <https://gitlab.freedesktop.org/gstreamer/gst-plugins-bad/-/merge_requests/1478>
This commit is contained in:
Seungha Yang 2020-07-31 03:46:39 +09:00 committed by GStreamer Merge Bot
parent 2303ad7bf4
commit 3fb8caf635
1 changed files with 20 additions and 6 deletions
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26
sys/mediafoundation/mediacapturewrapper.cpp
View file

@ -74,7 +74,8 @@ gst_media_capture_subtype_to_video_format (const std::string &subtype)
return "NV12";
else if (g_ascii_strcasecmp (subtype.c_str(), "YV12") == 0)
return "YV12";
else if (g_ascii_strcasecmp (subtype.c_str(), "IYUV") == 0)
else if (g_ascii_strcasecmp (subtype.c_str(), "IYUV") == 0 ||
g_ascii_strcasecmp (subtype.c_str(), "I420") == 0)
return "I420";
else if (g_ascii_strcasecmp (subtype.c_str(), "YUY2") == 0)
return "YUY2";
@ -654,6 +655,8 @@ MediaCaptureWrapper::mediaCaptureInitPost (ComPtr<IAsyncAction> init_async,
UINT32 count = 0;
GstVideoInfo videoInfo;
HRESULT hr;
bool is_I420_subtype = false;
std::string target_subtype;
ComPtr<ITypedEventHandler<MediaFrameReader*, MediaFrameArrivedEventArgs*>>
frame_arrived_handler = Callback<ITypedEventHandler<MediaFrameReader*,
MediaFrameArrivedEventArgs*>> ([&]
@ -676,6 +679,12 @@ MediaCaptureWrapper::mediaCaptureInitPost (ComPtr<IAsyncAction> init_async,
goto done;
}
/* Windows defines two I420 format, one is I420 and the other is IYUV.
* So, if requested video format was I420, we should accept both I420 and
* IYUV formats */
is_I420_subtype = GST_VIDEO_INFO_FORMAT (&videoInfo) == GST_VIDEO_FORMAT_I420;
target_subtype = convert_hstring_to_string (&media_desc_->subtype_);
hr = media_capture.As (&media_capture5);
if (!gst_mf_result (hr))
goto done;
@ -809,11 +818,16 @@ MediaCaptureWrapper::mediaCaptureInitPost (ComPtr<IAsyncAction> init_async,
if (!gst_mf_result (hr))
continue;
if (wcscmp (subtype.GetRawBuffer (nullptr),
media_desc_->subtype_.GetRawBuffer (nullptr))) {
std::string cur_subtype = convert_hstring_to_string (&subtype);
std::string target_subtype =
convert_hstring_to_string (&media_desc_->subtype_);
std::string cur_subtype = convert_hstring_to_string (&subtype);
if (is_I420_subtype) {
/* Special handling for I420 */
if (cur_subtype != "I420" && cur_subtype != "IYUV") {
GST_LOG ("IMediaFrameFormat[%d], subtype %s is not equal to target %s",
i, cur_subtype.c_str (), target_subtype.c_str ());
continue;
}
} else if (cur_subtype != target_subtype) {
GST_LOG ("IMediaFrameFormat[%d], subtype %s is not equal to target %s",
i, cur_subtype.c_str (), target_subtype.c_str ());
continue;