[FFmpeg-devel] [PATCH] avdevice/decklink: remove the duplicated warning message

[Marton Balint]

On Sun, 29 Nov 2020, lance.lmwang at gmail.com wrote:

> From: Limin Wang <lance.lmwang at gmail.com>
>
> ./ffmpeg -list_devices true -f decklink -i dummy
> [Blackmagic DeckLink indev @ 0x2f96d00] The "list_devices" option is deprecated: list available devices
> [decklink @ 0x2f96400] The -list_devices option is deprecated and will be removed. Please use ffmpeg -sources decklink instead.
> ->
> [Blackmagic DeckLink indev @ 0x306ed00] The "list_devices" option is deprecated: use -sources decklink instead

Well, OK. It still feels a little strange to me that we are substituting 
the descripion text with the depracation text but I can see some other 
deprecation options also do this.

I suggest you keep the "ffmpeg" in the deprecation text because 
-sinks/-sources is an option of the ffmpeg command line, not an option of 
decklink. So change the description to "use ffmpeg -sources instead" and 
similarly for the sinks.

LGTM otherwise.

Thanks,
Marton

>
> Signed-off-by: Limin Wang <lance.lmwang at gmail.com>
> ---
> libavdevice/decklink_dec.cpp | 1 -
> libavdevice/decklink_dec_c.c | 2 +-
> libavdevice/decklink_enc.cpp | 1 -
> libavdevice/decklink_enc_c.c | 2 +-
> 4 files changed, 2 insertions(+), 4 deletions(-)
>
> diff --git a/libavdevice/decklink_dec.cpp b/libavdevice/decklink_dec.cpp
> index 2e41b58..072f8a1 100644
> --- a/libavdevice/decklink_dec.cpp
> +++ b/libavdevice/decklink_dec.cpp
> @@ -1179,7 +1179,6 @@ av_cold int ff_decklink_read_header(AVFormatContext *avctx)
>
>     /* List available devices. */
>     if (ctx->list_devices) {
> -        av_log(avctx, AV_LOG_WARNING, "The -list_devices option is deprecated and will be removed. Please use ffmpeg -sources decklink instead.\n");
>         ff_decklink_list_devices_legacy(avctx, 1, 0);
>         return AVERROR_EXIT;
>     }
> diff --git a/libavdevice/decklink_dec_c.c b/libavdevice/decklink_dec_c.c
> index 60b7186..7e2f03f 100644
> --- a/libavdevice/decklink_dec_c.c
> +++ b/libavdevice/decklink_dec_c.c
> @@ -30,7 +30,7 @@
> #define DEC AV_OPT_FLAG_DECODING_PARAM
> 
> static const AVOption options[] = {
> -    { "list_devices", "list available devices"  , OFFSET(list_devices), AV_OPT_TYPE_BOOL  , { .i64 = 0   }, 0, 1, DEC | AV_OPT_FLAG_DEPRECATED},
> +    { "list_devices", "use -sources decklink instead", OFFSET(list_devices), AV_OPT_TYPE_BOOL, { .i64 = 0   }, 0, 1, DEC | AV_OPT_FLAG_DEPRECATED},
>     { "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 = 0}, 0, 5, DEC, "raw_format" },
> diff --git a/libavdevice/decklink_enc.cpp b/libavdevice/decklink_enc.cpp
> index 883fdea..04b06ae 100644
> --- a/libavdevice/decklink_enc.cpp
> +++ b/libavdevice/decklink_enc.cpp
> @@ -568,7 +568,6 @@ av_cold int ff_decklink_write_header(AVFormatContext *avctx)
>
>     /* List available devices and exit. */
>     if (ctx->list_devices) {
> -        av_log(avctx, AV_LOG_WARNING, "The -list_devices option is deprecated and will be removed. Please use ffmpeg -sinks decklink instead.\n");
>         ff_decklink_list_devices_legacy(avctx, 0, 1);
>         return AVERROR_EXIT;
>     }
> diff --git a/libavdevice/decklink_enc_c.c b/libavdevice/decklink_enc_c.c
> index 6cc0743..5a052c8 100644
> --- a/libavdevice/decklink_enc_c.c
> +++ b/libavdevice/decklink_enc_c.c
> @@ -28,7 +28,7 @@
> #define OFFSET(x) offsetof(struct decklink_cctx, x)
> #define ENC AV_OPT_FLAG_ENCODING_PARAM
> static const AVOption options[] = {
> -    { "list_devices", "list available devices"  , OFFSET(list_devices), AV_OPT_TYPE_BOOL  , { .i64 = 0   }, 0, 1, ENC | AV_OPT_FLAG_DEPRECATED},
> +    { "list_devices", "use -sinks decklink instead", OFFSET(list_devices), AV_OPT_TYPE_BOOL, { .i64 = 0   }, 0, 1, ENC | AV_OPT_FLAG_DEPRECATED},
>     { "list_formats", "list supported formats"  , OFFSET(list_formats), AV_OPT_TYPE_INT   , { .i64 = 0   }, 0, 1, ENC },
>     { "preroll"     , "video preroll in seconds", OFFSET(preroll     ), AV_OPT_TYPE_DOUBLE, { .dbl = 0.5 }, 0, 5, ENC },
>     { "duplex_mode" , "duplex mode"             , OFFSET(duplex_mode ), AV_OPT_TYPE_INT   , { .i64 = 0   }, 0, 2, ENC, "duplex_mode"},
> -- 
> 1.8.3.1
>
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