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libavdevice/decklink: add support for -sources and -sinks arguments

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Add support for enumerating the sources/sinks via the ffmpeg
command line options, as opposed to having to create a real pipeline
and use the "-list_devices" option which does exit() after dumping
out the options.

Note that this patch preserves the existing "-list_devices" option,
but now shares common code for the actual enumeration.

Updated to reflect feedback from Marton Balint <cus@passwd.hu>.

Signed-off-by: Devin Heitmueller <dheitmueller@ltnglobal.com>
Signed-off-by: Marton Balint <cus@passwd.hu>
This commit is contained in:
Devin Heitmueller
2017-10-06 08:55:43 -04:00
committed by Marton Balint
parent ff6de6b180
commit 278588cd0b
8 changed files with 104 additions and 10 deletions
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1
libavdevice/decklink_dec_c.c
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@ -89,6 +89,7 @@ AVInputFormat ff_decklink_demuxer = {
.flags = AVFMT_NOFILE,
.priv_class = &decklink_demuxer_class,
.priv_data_size = sizeof(struct decklink_cctx),
.get_device_list = ff_decklink_list_input_devices,
.read_header = ff_decklink_read_header,
.read_packet = ff_decklink_read_packet,
.read_close = ff_decklink_read_close,