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avdevice/decklink_dec: add support for rgb/yuv pixel format autodetection 

Signed-off-by: Marton Balint <cus@passwd.hu>
This commit is contained in:
Marton Balint 2020-07-15 20:45:22 +02:00
parent e33c0d8c69
commit f1b908d20a
3 changed files with 24 additions and 2 deletions
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15
doc/indevs.texi
View File

@ -296,16 +296,31 @@ supports it.
Set the pixel format of the captured video.
Available values are:
@table @samp
@item auto
This is the default which means 8-bit YUV 422 or 8-bit ARGB if format
autodetection is used, 8-bit YUV 422 otherwise.
@item uyvy422
8-bit YUV 422.
@item yuv422p10
10-bit YUV 422.
@item argb
8-bit RGB.
@item bgra
8-bit RGB.
@item rgb10
10-bit RGB.
@end table
@item teletext_lines

8
libavdevice/decklink_dec.cpp
View File

@ -1044,9 +1044,13 @@ HRESULT decklink_input_callback::VideoInputFrameArrived(
HRESULT decklink_input_callback::VideoInputFormatChanged(
BMDVideoInputFormatChangedEvents events, IDeckLinkDisplayMode *mode,
BMDDetectedVideoInputFormatFlags)
BMDDetectedVideoInputFormatFlags formatFlags)
{
struct decklink_cctx *cctx = (struct decklink_cctx *) avctx->priv_data;
ctx->bmd_mode = mode->GetDisplayMode();
// check the C context member to make sure we set both raw_format and bmd_mode with data from the same format change callback
if (!cctx->raw_format)
ctx->raw_format = (formatFlags & bmdDetectedVideoInputRGB444) ? bmdFormat8BitARGB : bmdFormat8BitYUV;
return S_OK;
}
@ -1228,6 +1232,8 @@ av_cold int ff_decklink_read_header(AVFormatContext *avctx)
}
av_log(avctx, AV_LOG_INFO, "Autodetected the input mode\n");
}
if (ctx->raw_format == bmdFormatUnspecified)
ctx->raw_format = bmdFormat8BitYUV;
if (ff_decklink_set_format(avctx, DIRECTION_IN) < 0) {
av_log(avctx, AV_LOG_ERROR, "Could not set format code %s for %s\n",
cctx->format_code ? cctx->format_code : "(unset)", avctx->url);

3
libavdevice/decklink_dec_c.c
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@ -33,7 +33,8 @@ static const AVOption options[] = {
{ "list_devices", "list available devices" , OFFSET(list_devices), AV_OPT_TYPE_INT , { .i64 = 0 }, 0, 1, DEC },
{ "list_formats", "list supported formats" , OFFSET(list_formats), AV_OPT_TYPE_INT , { .i64 = 0 }, 0, 1, DEC },
{ "format_code", "set format by fourcc" , OFFSET(format_code), AV_OPT_TYPE_STRING, { .str = NULL}, 0, 0, DEC },
{ "raw_format", "pixel format to be returned by the card when capturing" , OFFSET(raw_format), AV_OPT_TYPE_INT, { .i64 = MKBETAG('2','v','u','y')}, 0, UINT_MAX, DEC, "raw_format" },
{ "raw_format", "pixel format to be returned by the card when capturing" , OFFSET(raw_format), AV_OPT_TYPE_INT, { .i64 = 0}, 0, UINT_MAX, DEC, "raw_format" },
{ "auto", NULL, 0, AV_OPT_TYPE_CONST, { .i64 = 0 }, 0, 0, DEC, "raw_format"},
{ "uyvy422", NULL, 0, AV_OPT_TYPE_CONST, { .i64 = MKBETAG('2','v','u','y') }, 0, 0, DEC, "raw_format"},
{ "yuv422p10", NULL, 0, AV_OPT_TYPE_CONST, { .i64 = MKBETAG('v','2','1','0') }, 0, 0, DEC, "raw_format"},
{ "argb", NULL, 0, AV_OPT_TYPE_CONST, { .i64 = 32 }, 0, 0, DEC, "raw_format"},