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decklink: Validate video input format

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Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/2892>
This commit is contained in:
Eric Knapp 2022-08-17 11:42:09 -04:00
parent 0c42c4801c
commit 45408db258
3 changed files with 26 additions and 9 deletions
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25
subprojects/gst-plugins-bad/sys/decklink/gstdecklink.cpp
View file

@ -1090,20 +1090,35 @@ public:
VideoInputFormatChanged (BMDVideoInputFormatChangedEvents,
IDeckLinkDisplayMode * mode, BMDDetectedVideoInputFormatFlags formatFlags)
{
/* use the user-set format, defaulting to 8BitYUV */
BMDPixelFormat pixelFormat = m_input->format;
BMDPixelFormat pixelFormat = bmdFormatUnspecified;
GST_INFO ("Video input format changed");
if (m_input->format == bmdFormat8BitYUV) {
/* user-set format was auto or 8BitYUV */
if (formatFlags & bmdDetectedVideoInputRGB444) {
/* Detect input format */
if ((formatFlags & bmdDetectedVideoInputRGB444)
&& (formatFlags & bmdDetectedVideoInput8BitDepth)) {
/* Cannot detect ARGB vs BGRA, so assume ARGB unless user sets BGRA */
if (m_input->format == bmdFormat8BitBGRA) {
pixelFormat = bmdFormat8BitBGRA;
} else {
pixelFormat = bmdFormat8BitARGB;
}
} else if (formatFlags & bmdDetectedVideoInputYCbCr422) {
if (formatFlags & bmdDetectedVideoInput10BitDepth) {
pixelFormat = bmdFormat10BitYUV;
} else if (formatFlags & bmdDetectedVideoInput8BitDepth) {
pixelFormat = bmdFormat8BitYUV;
}
}
if (pixelFormat == bmdFormatUnspecified) {
GST_ERROR ("Video input format is not supported");
return E_FAIL;
}
if (!m_input->auto_format && (m_input->format != pixelFormat)) {
GST_ERROR ("Video input format does not match the user-set format");
return E_FAIL;
}
g_mutex_lock (&m_input->lock);

1
subprojects/gst-plugins-bad/sys/decklink/gstdecklink.h
View file

@ -440,6 +440,7 @@ struct _GstDecklinkInput {
/* Configured mode or NULL */
const GstDecklinkMode *mode;
BMDPixelFormat format;
gboolean auto_format;
/* Set by the audio source */
void (*got_audio_packet) (GstElement *videosrc, IDeckLinkAudioInputPacket * packet, GstClockTime capture_time, GstClockTime stream_time, GstClockTime stream_duration, GstClockTime hardware_time, GstClockTime hardware_duration, gboolean no_signal);

1
subprojects/gst-plugins-bad/sys/decklink/gstdecklinkvideosrc.cpp
View file

@ -1537,6 +1537,7 @@ gst_decklink_video_src_open (GstDecklinkVideoSrc * self)
g_mutex_lock (&self->input->lock);
self->input->mode = mode;
self->input->format = self->caps_format;
self->input->auto_format = self->video_format == GST_DECKLINK_VIDEO_FORMAT_AUTO;
self->input->got_video_frame = gst_decklink_video_src_got_frame;
self->input->start_streams = gst_decklink_video_src_start_streams;
g_mutex_unlock (&self->input->lock);