The branch, master has been updated
       via  27e94281d1c880b4cae28738e35c0d6f9a58f06b (commit)
      from  1e90047fe6dae4abf19351d678819bd29b41be0e (commit)


- Log -----------------------------------------------------------------
commit 27e94281d1c880b4cae28738e35c0d6f9a58f06b
Author:     Thomas Gritzan <[email protected]>
AuthorDate: Thu Nov 27 02:30:25 2025 +0100
Commit:     Marton Balint <[email protected]>
CommitDate: Mon Dec 1 21:37:12 2025 +0000

    libavdevice/decklink: add support for DeckLink SDK 14.3
    
    This patch adds support for DeckLink SDK 14.3 and newer by using
    the legacy interfaces in the header <DeckLinkAPI_v14_2_1.h>.
    
    The missing QueryInterface implementations are also provided.

diff --git a/libavdevice/decklink_common.cpp b/libavdevice/decklink_common.cpp
index 47de7ef6b0..fe187cd2c9 100644
--- a/libavdevice/decklink_common.cpp
+++ b/libavdevice/decklink_common.cpp
@@ -25,7 +25,12 @@ extern "C" {
 #include "libavformat/internal.h"
 }
 
+#include <DeckLinkAPIVersion.h>
 #include <DeckLinkAPI.h>
+#if BLACKMAGIC_DECKLINK_API_VERSION >= 0x0e030000
+#include <DeckLinkAPI_v14_2_1.h>
+#endif
+
 #ifdef _WIN32
 #include <DeckLinkAPI_i.c>
 #else
@@ -512,8 +517,8 @@ int ff_decklink_list_devices(AVFormatContext *avctx,
         return AVERROR(EIO);
 
     while (ret == 0 && iter->Next(&dl) == S_OK) {
-        IDeckLinkOutput *output_config;
-        IDeckLinkInput *input_config;
+        IDeckLinkOutput_v14_2_1 *output_config;
+        IDeckLinkInput_v14_2_1 *input_config;
         const char *display_name = NULL;
         const char *unique_name = NULL;
         AVDeviceInfo *new_device = NULL;
@@ -527,14 +532,14 @@ int ff_decklink_list_devices(AVFormatContext *avctx,
             goto next;
 
         if (show_outputs) {
-            if (dl->QueryInterface(IID_IDeckLinkOutput, (void 
**)&output_config) == S_OK) {
+            if (dl->QueryInterface(IID_IDeckLinkOutput_v14_2_1, (void 
**)&output_config) == S_OK) {
                 output_config->Release();
                 add = 1;
             }
         }
 
         if (show_inputs) {
-            if (dl->QueryInterface(IID_IDeckLinkInput, (void **)&input_config) 
== S_OK) {
+            if (dl->QueryInterface(IID_IDeckLinkInput_v14_2_1, (void 
**)&input_config) == S_OK) {
                 input_config->Release();
                 add = 1;
             }
diff --git a/libavdevice/decklink_common.h b/libavdevice/decklink_common.h
index 6b32dc2d09..095b438bce 100644
--- a/libavdevice/decklink_common.h
+++ b/libavdevice/decklink_common.h
@@ -29,6 +29,23 @@
 #define IDeckLinkProfileAttributes IDeckLinkAttributes
 #endif
 
+#if BLACKMAGIC_DECKLINK_API_VERSION < 0x0e030000
+#define IDeckLinkInput_v14_2_1 IDeckLinkInput
+#define IDeckLinkInputCallback_v14_2_1 IDeckLinkInputCallback
+#define IDeckLinkMemoryAllocator_v14_2_1 IDeckLinkMemoryAllocator
+#define IDeckLinkOutput_v14_2_1 IDeckLinkOutput
+#define IDeckLinkVideoFrame_v14_2_1 IDeckLinkVideoFrame
+#define IDeckLinkVideoInputFrame_v14_2_1 IDeckLinkVideoInputFrame
+#define IDeckLinkVideoOutputCallback_v14_2_1 IDeckLinkVideoOutputCallback
+#define IID_IDeckLinkInput_v14_2_1 IID_IDeckLinkInput
+#define IID_IDeckLinkInputCallback_v14_2_1 IID_IDeckLinkInputCallback
+#define IID_IDeckLinkMemoryAllocator_v14_2_1 IID_IDeckLinkMemoryAllocator
+#define IID_IDeckLinkOutput_v14_2_1 IID_IDeckLinkOutput
+#define IID_IDeckLinkVideoFrame_v14_2_1 IID_IDeckLinkVideoFrame
+#define IID_IDeckLinkVideoInputFrame_v14_2_1 IID_IDeckLinkVideoInputFrame
+#define IID_IDeckLinkVideoOutputCallback_v14_2_1 
IID_IDeckLinkVideoOutputCallback
+#endif
+
 extern "C" {
 #include "libavutil/mem.h"
 #include "libavcodec/packet_internal.h"
@@ -76,6 +93,16 @@ static char *dup_cfstring_to_utf8(CFStringRef w)
 #define DECKLINK_FREE(s) free((void *) s)
 #endif
 
+#ifdef _WIN32
+#include <guiddef.h>    // REFIID, IsEqualIID()
+#define DECKLINK_IsEqualIID IsEqualIID
+#else
+static inline bool DECKLINK_IsEqualIID(const REFIID& riid1, const REFIID& 
riid2)
+{
+    return memcmp(&riid1, &riid2, sizeof(REFIID)) == 0;
+}
+#endif
+
 class decklink_output_callback;
 class decklink_input_callback;
 
@@ -93,8 +120,8 @@ typedef struct DecklinkPacketQueue {
 struct decklink_ctx {
     /* DeckLink SDK interfaces */
     IDeckLink *dl;
-    IDeckLinkOutput *dlo;
-    IDeckLinkInput *dli;
+    IDeckLinkOutput_v14_2_1 *dlo;
+    IDeckLinkInput_v14_2_1 *dli;
     IDeckLinkConfiguration *cfg;
     IDeckLinkProfileAttributes *attr;
     decklink_output_callback *output_callback;
diff --git a/libavdevice/decklink_dec.cpp b/libavdevice/decklink_dec.cpp
index 418701e4e0..8830779990 100644
--- a/libavdevice/decklink_dec.cpp
+++ b/libavdevice/decklink_dec.cpp
@@ -31,7 +31,11 @@ extern "C" {
 #include "libavformat/internal.h"
 }
 
+#include <DeckLinkAPIVersion.h>
 #include <DeckLinkAPI.h>
+#if BLACKMAGIC_DECKLINK_API_VERSION >= 0x0e030000
+#include <DeckLinkAPI_v14_2_1.h>
+#endif
 
 extern "C" {
 #include "config.h"
@@ -105,7 +109,7 @@ static VANCLineNumber vanc_line_numbers[] = {
     {bmdModeUnknown, 0, -1, -1, -1}
 };
 
-class decklink_allocator : public IDeckLinkMemoryAllocator
+class decklink_allocator : public IDeckLinkMemoryAllocator_v14_2_1
 {
 public:
         decklink_allocator(): _refs(1) { }
@@ -129,7 +133,21 @@ public:
         virtual HRESULT STDMETHODCALLTYPE Decommit() { return S_OK; }
 
         // IUnknown methods
-        virtual HRESULT STDMETHODCALLTYPE QueryInterface(REFIID iid, LPVOID 
*ppv) { return E_NOINTERFACE; }
+        virtual HRESULT STDMETHODCALLTYPE QueryInterface(REFIID riid, LPVOID 
*ppv)
+        {
+            if (DECKLINK_IsEqualIID(riid, IID_IUnknown)) {
+                *ppv = static_cast<IUnknown*>(this);
+            } else if (DECKLINK_IsEqualIID(riid, 
IID_IDeckLinkMemoryAllocator_v14_2_1)) {
+                *ppv = static_cast<IDeckLinkMemoryAllocator_v14_2_1*>(this);
+            } else {
+                *ppv = NULL;
+                return E_NOINTERFACE;
+            }
+
+            AddRef();
+            return S_OK;
+        }
+
         virtual ULONG   STDMETHODCALLTYPE AddRef(void) { return ++_refs; }
         virtual ULONG   STDMETHODCALLTYPE Release(void)
         {
@@ -472,7 +490,7 @@ skip_packet:
 }
 
 
-static void handle_klv(AVFormatContext *avctx, decklink_ctx *ctx, 
IDeckLinkVideoInputFrame *videoFrame, int64_t pts)
+static void handle_klv(AVFormatContext *avctx, decklink_ctx *ctx, 
IDeckLinkVideoInputFrame_v14_2_1 *videoFrame, int64_t pts)
 {
     const uint8_t KLV_DID = 0x44;
     const uint8_t KLV_IN_VANC_SDID = 0x04;
@@ -574,17 +592,30 @@ static void handle_klv(AVFormatContext *avctx, 
decklink_ctx *ctx, IDeckLinkVideo
     }
 }
 
-class decklink_input_callback : public IDeckLinkInputCallback
+class decklink_input_callback : public IDeckLinkInputCallback_v14_2_1
 {
 public:
         explicit decklink_input_callback(AVFormatContext *_avctx);
         ~decklink_input_callback();
 
-        virtual HRESULT STDMETHODCALLTYPE QueryInterface(REFIID iid, LPVOID 
*ppv) { return E_NOINTERFACE; }
+        virtual HRESULT STDMETHODCALLTYPE QueryInterface(REFIID riid, LPVOID 
*ppv)
+        {
+            if (DECKLINK_IsEqualIID(riid, IID_IUnknown)) {
+                *ppv = static_cast<IUnknown*>(this);
+            } else if (DECKLINK_IsEqualIID(riid, 
IID_IDeckLinkInputCallback_v14_2_1)) {
+                *ppv = static_cast<IDeckLinkInputCallback_v14_2_1*>(this);
+            } else {
+                *ppv = NULL;
+                return E_NOINTERFACE;
+            }
+
+            AddRef();
+            return S_OK;
+        }
         virtual ULONG STDMETHODCALLTYPE AddRef(void);
         virtual ULONG STDMETHODCALLTYPE  Release(void);
         virtual HRESULT STDMETHODCALLTYPE 
VideoInputFormatChanged(BMDVideoInputFormatChangedEvents, 
IDeckLinkDisplayMode*, BMDDetectedVideoInputFormatFlags);
-        virtual HRESULT STDMETHODCALLTYPE 
VideoInputFrameArrived(IDeckLinkVideoInputFrame*, IDeckLinkAudioInputPacket*);
+        virtual HRESULT STDMETHODCALLTYPE 
VideoInputFrameArrived(IDeckLinkVideoInputFrame_v14_2_1*, 
IDeckLinkAudioInputPacket*);
 
 private:
         std::atomic<int>  _refs;
@@ -593,7 +624,7 @@ private:
         int no_video;
         int64_t initial_video_pts;
         int64_t initial_audio_pts;
-        IDeckLinkVideoInputFrame* last_video_frame;
+        IDeckLinkVideoInputFrame_v14_2_1* last_video_frame;
 };
 
 decklink_input_callback::decklink_input_callback(AVFormatContext *_avctx) : 
_refs(1)
@@ -625,7 +656,7 @@ ULONG decklink_input_callback::Release(void)
     return ret;
 }
 
-static int64_t get_pkt_pts(IDeckLinkVideoInputFrame *videoFrame,
+static int64_t get_pkt_pts(IDeckLinkVideoInputFrame_v14_2_1 *videoFrame,
                            IDeckLinkAudioInputPacket *audioFrame,
                            int64_t wallclock,
                            int64_t abs_wallclock,
@@ -679,7 +710,7 @@ static int64_t get_pkt_pts(IDeckLinkVideoInputFrame 
*videoFrame,
     return pts;
 }
 
-static int get_bmd_timecode(AVFormatContext *avctx, AVTimecode *tc, AVRational 
frame_rate, BMDTimecodeFormat tc_format, IDeckLinkVideoInputFrame *videoFrame)
+static int get_bmd_timecode(AVFormatContext *avctx, AVTimecode *tc, AVRational 
frame_rate, BMDTimecodeFormat tc_format, IDeckLinkVideoInputFrame_v14_2_1 
*videoFrame)
 {
     IDeckLinkTimecode *timecode;
     int ret = AVERROR(ENOENT);
@@ -701,7 +732,7 @@ static int get_bmd_timecode(AVFormatContext *avctx, 
AVTimecode *tc, AVRational f
     return ret;
 }
 
-static int get_frame_timecode(AVFormatContext *avctx, decklink_ctx *ctx, 
AVTimecode *tc, IDeckLinkVideoInputFrame *videoFrame)
+static int get_frame_timecode(AVFormatContext *avctx, decklink_ctx *ctx, 
AVTimecode *tc, IDeckLinkVideoInputFrame_v14_2_1 *videoFrame)
 {
     AVRational frame_rate = ctx->video_st->r_frame_rate;
     int ret;
@@ -726,7 +757,7 @@ static int get_frame_timecode(AVFormatContext *avctx, 
decklink_ctx *ctx, AVTimec
 }
 
 HRESULT decklink_input_callback::VideoInputFrameArrived(
-    IDeckLinkVideoInputFrame *videoFrame, IDeckLinkAudioInputPacket 
*audioFrame)
+    IDeckLinkVideoInputFrame_v14_2_1 *videoFrame, IDeckLinkAudioInputPacket 
*audioFrame)
 {
     void *frameBytes;
     void *audioFrameBytes;
@@ -1141,7 +1172,7 @@ av_cold int ff_decklink_read_header(AVFormatContext 
*avctx)
         goto error;
 
     /* Get input device. */
-    if (ctx->dl->QueryInterface(IID_IDeckLinkInput, (void **) &ctx->dli) != 
S_OK) {
+    if (ctx->dl->QueryInterface(IID_IDeckLinkInput_v14_2_1, (void **) 
&ctx->dli) != S_OK) {
         av_log(avctx, AV_LOG_ERROR, "Could not open input device from '%s'\n",
                avctx->url);
         ret = AVERROR(EIO);
diff --git a/libavdevice/decklink_enc.cpp b/libavdevice/decklink_enc.cpp
index 195f005c17..d2e246c818 100644
--- a/libavdevice/decklink_enc.cpp
+++ b/libavdevice/decklink_enc.cpp
@@ -28,7 +28,11 @@ extern "C" {
 #include "libavformat/internal.h"
 }
 
+#include <DeckLinkAPIVersion.h>
 #include <DeckLinkAPI.h>
+#if BLACKMAGIC_DECKLINK_API_VERSION >= 0x0e030000
+#include <DeckLinkAPI_v14_2_1.h>
+#endif
 
 extern "C" {
 #include "libavformat/avformat.h"
@@ -47,18 +51,8 @@ extern "C" {
 #include "libklvanc/pixels.h"
 #endif
 
-#ifdef _WIN32
-#include <guiddef.h>
-#else
-/* There is no guiddef.h in Linux builds, so we provide our own IsEqualIID() */
-static bool IsEqualIID(REFIID riid1, REFIID riid2)
-{
-    return memcmp(&riid1, &riid2, sizeof(REFIID)) == 0;
-}
-#endif
-
 /* DeckLink callback class declaration */
-class decklink_frame : public IDeckLinkVideoFrame
+class decklink_frame : public IDeckLinkVideoFrame_v14_2_1
 {
 public:
     decklink_frame(struct decklink_ctx *ctx, AVFrame *avframe, AVCodecID 
codec_id, int height, int width) :
@@ -123,10 +117,10 @@ public:
     }
     virtual HRESULT STDMETHODCALLTYPE QueryInterface(REFIID riid, LPVOID *ppv)
     {
-        if (IsEqualIID(riid, IID_IUnknown)) {
+        if (DECKLINK_IsEqualIID(riid, IID_IUnknown)) {
             *ppv = static_cast<IUnknown*>(this);
-        } else if (IsEqualIID(riid, IID_IDeckLinkVideoFrame)) {
-            *ppv = static_cast<IDeckLinkVideoFrame*>(this);
+        } else if (DECKLINK_IsEqualIID(riid, IID_IDeckLinkVideoFrame_v14_2_1)) 
{
+            *ppv = static_cast<IDeckLinkVideoFrame_v14_2_1*>(this);
         } else {
             *ppv = NULL;
             return E_NOINTERFACE;
@@ -135,7 +129,6 @@ public:
         AddRef();
         return S_OK;
     }
-
     virtual ULONG   STDMETHODCALLTYPE AddRef(void)                            
{ return ++_refs; }
     virtual ULONG   STDMETHODCALLTYPE Release(void)
     {
@@ -162,10 +155,10 @@ private:
     std::atomic<int>  _refs;
 };
 
-class decklink_output_callback : public IDeckLinkVideoOutputCallback
+class decklink_output_callback : public IDeckLinkVideoOutputCallback_v14_2_1
 {
 public:
-    virtual HRESULT STDMETHODCALLTYPE 
ScheduledFrameCompleted(IDeckLinkVideoFrame *_frame, 
BMDOutputFrameCompletionResult result)
+    virtual HRESULT STDMETHODCALLTYPE 
ScheduledFrameCompleted(IDeckLinkVideoFrame_v14_2_1 *_frame, 
BMDOutputFrameCompletionResult result)
     {
         decklink_frame *frame = static_cast<decklink_frame *>(_frame);
         struct decklink_ctx *ctx = frame->_ctx;
@@ -183,7 +176,20 @@ public:
         return S_OK;
     }
     virtual HRESULT STDMETHODCALLTYPE ScheduledPlaybackHasStopped(void)       
{ return S_OK; }
-    virtual HRESULT STDMETHODCALLTYPE QueryInterface(REFIID iid, LPVOID *ppv) 
{ return E_NOINTERFACE; }
+    virtual HRESULT STDMETHODCALLTYPE QueryInterface(REFIID riid, LPVOID *ppv)
+    {
+        if (DECKLINK_IsEqualIID(riid, IID_IUnknown)) {
+            *ppv = static_cast<IUnknown*>(this);
+        } else if (DECKLINK_IsEqualIID(riid, 
IID_IDeckLinkVideoOutputCallback_v14_2_1)) {
+            *ppv = static_cast<IDeckLinkVideoOutputCallback_v14_2_1*>(this);
+        } else {
+            *ppv = NULL;
+            return E_NOINTERFACE;
+        }
+
+        AddRef();
+        return S_OK;
+    }
     virtual ULONG   STDMETHODCALLTYPE AddRef(void)                            
{ return 1; }
     virtual ULONG   STDMETHODCALLTYPE Release(void)                           
{ return 1; }
 };
@@ -763,7 +769,7 @@ static int decklink_write_video_packet(AVFormatContext 
*avctx, AVPacket *pkt)
         ctx->first_pts = pkt->pts;
 
     /* Schedule frame for playback. */
-    hr = ctx->dlo->ScheduleVideoFrame((class IDeckLinkVideoFrame *) frame,
+    hr = ctx->dlo->ScheduleVideoFrame(frame,
                                       pkt->pts * ctx->bmd_tb_num,
                                       ctx->bmd_tb_num, ctx->bmd_tb_den);
     /* Pass ownership to DeckLink, or release on failure */
@@ -898,7 +904,7 @@ av_cold int ff_decklink_write_header(AVFormatContext *avctx)
         return ret;
 
     /* Get output device. */
-    if (ctx->dl->QueryInterface(IID_IDeckLinkOutput, (void **) &ctx->dlo) != 
S_OK) {
+    if (ctx->dl->QueryInterface(IID_IDeckLinkOutput_v14_2_1, (void **) 
&ctx->dlo) != S_OK) {
         av_log(avctx, AV_LOG_ERROR, "Could not open output device from '%s'\n",
                avctx->url);
         ret = AVERROR(EIO);

-----------------------------------------------------------------------

Summary of changes:
 libavdevice/decklink_common.cpp | 13 +++++++---
 libavdevice/decklink_common.h   | 31 +++++++++++++++++++++--
 libavdevice/decklink_dec.cpp    | 55 ++++++++++++++++++++++++++++++++---------
 libavdevice/decklink_enc.cpp    | 46 +++++++++++++++++++---------------
 4 files changed, 107 insertions(+), 38 deletions(-)


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