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avdevice/decklink: add support for audio and video input selection

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Reviewed-by: Deti Fliegl <deti@fliegl.de>
Signed-off-by: Marton Balint <cus@passwd.hu>
This commit is contained in:
Marton Balint
2016-06-18 12:04:15 +02:00
parent 8f9fa49bd8
commit da89c6e37c
6 changed files with 97 additions and 0 deletions
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43
libavdevice/decklink_common.cpp
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@@ -98,6 +98,35 @@ HRESULT ff_decklink_get_display_name(IDeckLink *This, const char **displayName)
return hr;
}
static int decklink_select_input(AVFormatContext *avctx, BMDDeckLinkConfigurationID cfg_id)
{
struct decklink_cctx *cctx = (struct decklink_cctx *) avctx->priv_data;
struct decklink_ctx *ctx = (struct decklink_ctx *)cctx->ctx;
BMDDeckLinkAttributeID attr_id = (cfg_id == bmdDeckLinkConfigAudioInputConnection) ? BMDDeckLinkAudioInputConnections : BMDDeckLinkVideoInputConnections;
int64_t bmd_input = (cfg_id == bmdDeckLinkConfigAudioInputConnection) ? ctx->audio_input : ctx->video_input;
const char *type_name = (cfg_id == bmdDeckLinkConfigAudioInputConnection) ? "audio" : "video";
int64_t supported_connections = 0;
HRESULT res;
if (bmd_input) {
res = ctx->attr->GetInt(attr_id, &supported_connections);
if (res != S_OK) {
av_log(avctx, AV_LOG_ERROR, "Failed to query supported %s inputs.\n", type_name);
return AVERROR_EXTERNAL;
}
if ((supported_connections & bmd_input) != bmd_input) {
av_log(avctx, AV_LOG_ERROR, "Device does not support selected %s input.\n", type_name);
return AVERROR(ENOSYS);
}
res = ctx->cfg->SetInt(cfg_id, bmd_input);
if (res != S_OK) {
av_log(avctx, AV_LOG_ERROR, "Failed to select %s input.\n", type_name);
return AVERROR_EXTERNAL;
}
}
return 0;
}
int ff_decklink_set_format(AVFormatContext *avctx,
int width, int height,
int tb_num, int tb_den,
@@ -129,6 +158,13 @@ int ff_decklink_set_format(AVFormatContext *avctx,
}
if (direction == DIRECTION_IN) {
int ret;
ret = decklink_select_input(avctx, bmdDeckLinkConfigAudioInputConnection);
if (ret < 0)
return ret;
ret = decklink_select_input(avctx, bmdDeckLinkConfigVideoInputConnection);
if (ret < 0)
return ret;
res = ctx->dli->GetDisplayModeIterator (&itermode);
} else {
res = ctx->dlo->GetDisplayModeIterator (&itermode);
@@ -224,6 +260,13 @@ int ff_decklink_list_formats(AVFormatContext *avctx, decklink_direction_t direct
HRESULT res;
if (direction == DIRECTION_IN) {
int ret;
ret = decklink_select_input(avctx, bmdDeckLinkConfigAudioInputConnection);
if (ret < 0)
return ret;
ret = decklink_select_input(avctx, bmdDeckLinkConfigVideoInputConnection);
if (ret < 0)
return ret;
res = ctx->dli->GetDisplayModeIterator (&itermode);
} else {
res = ctx->dlo->GetDisplayModeIterator (&itermode);