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avdevice/decklink: add level_a configuration option

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Reviewed-by: Marton Balint <cus@passwd.hu>
Signed-off-by: Limin Wang <lance.lmwang@gmail.com>
This commit is contained in:
Limin Wang
2021-08-09 08:23:18 +08:00
parent 5f3df7afa6
commit 13460af456
4 changed files with 27 additions and 0 deletions
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17
libavdevice/decklink_common.cpp
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@@ -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;
}