From: Limin Wang <lance.lmw...@gmail.com>
Reviewed-by: Marton Balint <c...@passwd.hu>
Signed-off-by: Limin Wang <lance.lmw...@gmail.com>
---
doc/outdevs.texi | 5 +++++
libavdevice/decklink_common.cpp | 17 +++++++++++++++++
libavdevice/decklink_common_c.h | 1 +
libavdevice/decklink_enc_c.c | 4 ++++
4 files changed, 27 insertions(+)
diff --git a/doc/outdevs.texi b/doc/outdevs.texi
index e3e88b2..cc0c94a 100644
--- a/doc/outdevs.texi
+++ b/doc/outdevs.texi
@@ -216,6 +216,11 @@ Enable Square Division Quad Split mode for Quad-link SDI
output.
Must be @samp{unset}, @samp{true} or @samp{false}.
Defaults to @option{unset}.
+@item level_a
+Enable SMPTE Level A mode on the used output.
+Must be @samp{unset}, @samp{true} or @samp{false}.
+Defaults to @option{unset}.
+
@end table
@subsection Examples
diff --git a/libavdevice/decklink_common.cpp b/libavdevice/decklink_common.cpp
index a892a6c..0569462 100644
--- a/libavdevice/decklink_common.cpp
+++ b/libavdevice/decklink_common.cpp
@@ -230,6 +230,23 @@ int ff_decklink_set_configs(AVFormatContext *avctx,
}
}
+ if (direction == DIRECTION_OUT && cctx->level_a >= 0) {
+ DECKLINK_BOOL level_a_supported = false;
+
+ if (ctx->attr->GetFlag(BMDDeckLinkSupportsSMPTELevelAOutput,
&level_a_supported) != S_OK)
+ level_a_supported = false;
+
+ if (level_a_supported) {
+ res = ctx->cfg->SetFlag(bmdDeckLinkConfigSMPTELevelAOutput,
cctx->level_a);
+ if (res != S_OK)
+ av_log(avctx, AV_LOG_WARNING, "Setting SMPTE levelA
failed.\n");
+ else
+ av_log(avctx, AV_LOG_VERBOSE, "Successfully set SMPTE
levelA.\n");
+ } else {
+ av_log(avctx, AV_LOG_WARNING, "Unable to set SMPTE levelA mode,
because it is not supported.\n");
+ }
+ }
+
return 0;
}
diff --git a/libavdevice/decklink_common_c.h b/libavdevice/decklink_common_c.h
index fdaa1f9..c257721 100644
--- a/libavdevice/decklink_common_c.h
+++ b/libavdevice/decklink_common_c.h
@@ -50,6 +50,7 @@ struct decklink_cctx {
int duplex_mode;
int link;
int sqd;
+ int level_a;
DecklinkPtsSource audio_pts_source;
DecklinkPtsSource video_pts_source;
int audio_input;
diff --git a/libavdevice/decklink_enc_c.c b/libavdevice/decklink_enc_c.c
index 4bcdbfe..559f078 100644
--- a/libavdevice/decklink_enc_c.c
+++ b/libavdevice/decklink_enc_c.c
@@ -44,6 +44,10 @@ static const AVOption options[] = {
{ "unset" , NULL , 0 ,
AV_OPT_TYPE_CONST , { .i64 = -1 }, 0, 0, ENC, "sqd"},
{ "false" , NULL , 0 ,
AV_OPT_TYPE_CONST , { .i64 = 0 }, 0, 0, ENC, "sqd"},
{ "true" , NULL , 0 ,
AV_OPT_TYPE_CONST , { .i64 = 1 }, 0, 0, ENC, "sqd"},
+ { "level_a" , "set SMPTE LevelA" , OFFSET(level_a) ,
AV_OPT_TYPE_INT, { .i64 = -1 }, -1,1, ENC, "level_a"},
+ { "unset" , NULL , 0 ,
AV_OPT_TYPE_CONST , { .i64 = -1 }, 0, 0, ENC, "level_a"},
+ { "false" , NULL , 0 ,
AV_OPT_TYPE_CONST , { .i64 = 0 }, 0, 0, ENC, "level_a"},
+ { "true" , NULL , 0 ,
AV_OPT_TYPE_CONST , { .i64 = 1 }, 0, 0, ENC, "level_a"},
{ "timing_offset", "genlock timing pixel offset", OFFSET(timing_offset),
AV_OPT_TYPE_INT, { .i64 = INT_MIN }, INT_MIN, INT_MAX, ENC, "timing_offset"},
{ "unset" , NULL , 0 ,
AV_OPT_TYPE_CONST, { .i64 = INT_MIN }, 0, 0, ENC, "timing_offset"},
{ NULL },
--
1.8.3.1
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