[FFmpeg-devel] [PATCH 1/3] decklink: add fourCC of display mode to list_format output

[Matthias Hunstock]

---
 libavdevice/decklink_common.cpp | 11 +++++++----
 1 file changed, 7 insertions(+), 4 deletions(-)

diff --git a/libavdevice/decklink_common.cpp b/libavdevice/decklink_common.cpp
index 8b499c5..131d186 100644
--- a/libavdevice/decklink_common.cpp
+++ b/libavdevice/decklink_common.cpp
@@ -276,6 +276,7 @@ int ff_decklink_list_formats(AVFormatContext *avctx, decklink_direction_t direct
     struct decklink_ctx *ctx = (struct decklink_ctx *)cctx->ctx;
     IDeckLinkDisplayModeIterator *itermode;
     IDeckLinkDisplayMode *mode;
+    char fourcc[32];
     int i=0;
     HRESULT res;
 
@@ -297,13 +298,15 @@ int ff_decklink_list_formats(AVFormatContext *avctx, decklink_direction_t direct
             return AVERROR(EIO);
     }
 
-    av_log(avctx, AV_LOG_INFO, "Supported formats for '%s':\n",
+    av_log(avctx, AV_LOG_INFO, "Supported formats for '%s':\n\tmode\tfourCC\tdescription",
                avctx->filename);
     while (itermode->Next(&mode) == S_OK) {
         BMDTimeValue tb_num, tb_den;
         mode->GetFrameRate(&tb_num, &tb_den);
-        av_log(avctx, AV_LOG_INFO, "\t%d\t%ldx%ld at %d/%d fps",
-                ++i,mode->GetWidth(), mode->GetHeight(),
+        av_get_codec_tag_string(fourcc, sizeof(fourcc), mode->GetDisplayMode());
+        av_log(avctx, AV_LOG_INFO, "\n\t%d\t%c%c%c%c\t%ldx%ld at %d/%d fps",
+                ++i, fourcc[3], fourcc[2], fourcc[1], fourcc[0],
+                mode->GetWidth(), mode->GetHeight(),
                 (int) tb_den, (int) tb_num);
         switch (mode->GetFieldDominance()) {
         case bmdLowerFieldFirst:
@@ -311,9 +314,9 @@ int ff_decklink_list_formats(AVFormatContext *avctx, decklink_direction_t direct
         case bmdUpperFieldFirst:
         av_log(avctx, AV_LOG_INFO, " (interlaced, upper field first)"); break;
         }
-        av_log(avctx, AV_LOG_INFO, "\n");
         mode->Release();
     }
+    av_log(avctx, AV_LOG_INFO, "\n");
 
     itermode->Release();
 
-- 
2.1.4