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avdevice/decklink: fix checking video mode in SDK version 11 

Apparently in the new SDK one cannot query if VANC output is supported, so we
will fall back to non-VANC output if enabling the video output with VANC fails.

Fixes ticket #7867.

Signed-off-by: Marton Balint <cus@passwd.hu>
This commit is contained in:
Marton Balint 2019-05-01 12:47:43 +02:00
parent 73f234fdf8
commit 15b8f36be1
2 changed files with 10 additions and 13 deletions
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16
libavdevice/decklink_common.cpp
View File

@ -273,21 +273,15 @@ int ff_decklink_set_format(AVFormatContext *avctx,
#if BLACKMAGIC_DECKLINK_API_VERSION >= 0x0b000000
if (direction == DIRECTION_IN) {
if (ctx->dli->DoesSupportVideoMode(ctx->video_input, ctx->bmd_mode, (BMDPixelFormat) cctx->raw_format,
bmdVideoInputFlagDefault,
bmdSupportedVideoModeDefault,
&support) != S_OK)
return -1;
} else {
BMDDisplayMode actualMode = ctx->bmd_mode;
if (!ctx->supports_vanc || ctx->dlo->DoesSupportVideoMode(bmdVideoConnectionUnspecified, ctx->bmd_mode, ctx->raw_format,
bmdVideoOutputVANC,
&actualMode, &support) != S_OK || !support || ctx->bmd_mode != actualMode) {
/* Try without VANC enabled */
if (ctx->dlo->DoesSupportVideoMode(bmdVideoConnectionUnspecified, ctx->bmd_mode, ctx->raw_format,
bmdVideoOutputFlagDefault,
&actualMode, &support) != S_OK || !support || ctx->bmd_mode != actualMode) {
return -1;
}
ctx->supports_vanc = 0;
if (ctx->dlo->DoesSupportVideoMode(bmdVideoConnectionUnspecified, ctx->bmd_mode, ctx->raw_format,
bmdSupportedVideoModeDefault,
&actualMode, &support) != S_OK || !support || ctx->bmd_mode != actualMode) {
return -1;
}
}

7
libavdevice/decklink_enc.cpp
View File

@ -197,8 +197,11 @@ static int decklink_setup_video(AVFormatContext *avctx, AVStream *st)
" Check available formats with -list_formats 1.\n");
return -1;
}
if (ctx->dlo->EnableVideoOutput(ctx->bmd_mode,
ctx->supports_vanc ? bmdVideoOutputVANC : bmdVideoOutputFlagDefault) != S_OK) {
if (ctx->supports_vanc && ctx->dlo->EnableVideoOutput(ctx->bmd_mode, bmdVideoOutputVANC) != S_OK) {
av_log(avctx, AV_LOG_WARNING, "Could not enable video output with VANC! Trying without...\n");
ctx->supports_vanc = 0;
}
if (!ctx->supports_vanc && ctx->dlo->EnableVideoOutput(ctx->bmd_mode, bmdVideoOutputFlagDefault) != S_OK) {
av_log(avctx, AV_LOG_ERROR, "Could not enable video output!\n");
return -1;
}