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DeckLink disp.: support for "query="

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to query device attributes, like `keyi`
This commit is contained in:
Martin Pulec
2023-10-18 11:52:55 +02:00
parent e063ebc651
commit 90d04320e5
1 changed files with 29 additions and 10 deletions
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39
src/video_display/decklink.cpp
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@@ -95,7 +95,7 @@ enum {
#define RELEASE_IF_NOT_NULL(x) if ((x) != nullptr) { (x)->Release(); (x) = nullptr; }
static void print_output_modes(IDeckLink *);
static void print_output_modes(IDeckLink *deckLink, const char *query_prop_fcc);
static void display_decklink_done(void *state);
static bool display_decklink_reconfigure(void *state, struct video_desc desc);
@@ -505,10 +505,10 @@ struct state_decklink {
AudioDriftFixer audio_drift_fixer{};
};
static void show_help(bool full);
static void show_help(bool full)
{
/// @param query_prop_fcc if not NULL, print corresponding BMDDeckLinkAttribute
static void
show_help(bool full, const char *query_prop_fcc = nullptr)
{
IDeckLinkIterator* deckLinkIterator;
IDeckLink* deckLink;
int numDevices = 0;
@@ -594,7 +594,7 @@ static void show_help(bool full)
// *** Print the model name of the DeckLink card
col() << "\t" << SBOLD(numDevices) << ") " << SBOLD(deviceName) << "\n";
if (full) {
print_output_modes(deckLink);
print_output_modes(deckLink, query_prop_fcc);
}
// Increment the total number of DeckLink cards found
@@ -624,7 +624,7 @@ static void show_help(bool full)
print_decklink_version();
printf("\n");
}
}
}
static DeckLinkFrame*
allocate_new_decklink_frame(struct state_decklink *s)
@@ -1257,6 +1257,10 @@ static void *display_decklink_init(struct module *parent, const char *fmt, unsig
show_help(strcmp(fmt, "fullhelp") == 0);
return INIT_NOERR;
}
if (IS_KEY_PREFIX(fmt, "query")) {
show_help(true, strchr(fmt, '=') + 1);
return INIT_NOERR;
}
if (!blackmagic_api_version_check()) {
return NULL;
@@ -2048,8 +2052,8 @@ HRESULT DeckLink3DFrame::GetFrameForRightEye(IDeckLinkVideoFrame ** frame)
}
/* function from DeckLink SDK sample DeviceList */
static void print_output_modes (IDeckLink* deckLink)
static void
print_output_modes(IDeckLink *deckLink, const char *query_prop_fcc)
{
IDeckLinkOutput* deckLinkOutput = NULL;
IDeckLinkDisplayModeIterator* displayModeIterator = NULL;
@@ -2114,7 +2118,22 @@ static void print_output_modes (IDeckLink* deckLink)
printf(" %s", get_codec_name(c.first));
}
}
color_printf(TERM_RESET "\n\n");
color_printf(TERM_RESET "\n");
if (query_prop_fcc != nullptr) {
IDeckLinkProfileAttributes *deckLinkAttributes = nullptr;
if (deckLink->QueryInterface(IID_IDeckLinkProfileAttributes,
(void **) &deckLinkAttributes) ==
S_OK) {
cout << "\n";
print_bmd_attribute(deckLinkAttributes, query_prop_fcc);
deckLinkAttributes->Release();
} else {
MSG(ERROR, "Could not query device attributes.\n\n");
}
}
color_printf("\n");
bail:
// Ensure that the interfaces we obtained are released to prevent a memory leak