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af/vf-command: add ability to target a specific lavfi filter

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fixes: #11180
This commit is contained in:
Ashyni 2023-01-20 00:23:54 +01:00 committed by sfan5
parent 8641cbaab6
commit d32f1aac3f
4 changed files with 33 additions and 15 deletions
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21
DOCS/man/input.rst
View File

@ -1296,16 +1296,21 @@ Input Commands that are Possibly Subject to Change
The ``flags`` argument is like the first argument to ``screenshot`` and
supports ``subtitles``, ``video``, ``window``.
``vf-command <label> <command> <argument>``
Send a command to the filter with the given ``<label>``. Use ``all`` to send
it to all filters at once. The command and argument string is filter
specific. Currently, this only works with the ``lavfi`` filter - see
the libavfilter documentation for which commands a filter supports.
``vf-command <label> <command> <argument> [<target>]``
Send a command to the filter. Note that currently, this only works with
the ``lavfi`` filter. Refer to the libavfilter documentation for the list
of supported commands for each filter.
Note that the ``<label>`` is a mpv filter label, not a libavfilter filter
name.
``<label>`` is a mpv filter label, use ``all`` to send it to all filters
at once.
``af-command <label> <command> <argument>``
``<command>`` and ``<argument>`` are filter-specific strings.
``<target>`` is a filter or filter instance name and defaults to ``all``.
Note that the target is an additional specifier for filters that
support them, such as complex ``lavfi`` filter chains.
``af-command <label> <command> <argument> [<target>]``
Same as ``vf-command``, but for audio filters.
``apply-profile <name> [<mode>]``

3
filters/f_lavfi.c
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@ -814,7 +814,8 @@ static bool lavfi_command(struct mp_filter *f, struct mp_filter_command *cmd)
switch (cmd->type) {
case MP_FILTER_COMMAND_TEXT: {
return avfilter_graph_send_command(c->graph, "all", cmd->cmd, cmd->arg,
return avfilter_graph_send_command(c->graph, cmd->target,
cmd->cmd, cmd->arg,
&(char){0}, 0, 0) >= 0;
}
case MP_FILTER_COMMAND_GET_META: {

1
filters/filter.h
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@ -376,6 +376,7 @@ struct mp_filter_command {
enum mp_filter_command_type type;
// For MP_FILTER_COMMAND_TEXT
const char *target;
const char *cmd;
const char *arg;

23
player/command.c
View File

@ -5999,6 +5999,7 @@ static void cmd_filter_command(void *p)
}
struct mp_filter_command filter_cmd = {
.type = MP_FILTER_COMMAND_TEXT,
.target = cmd->args[3].v.s,
.cmd = cmd->args[1].v.s,
.arg = cmd->args[2].v.s,
};
@ -6643,13 +6644,23 @@ const struct mp_cmd_def mp_cmds[] = {
{"value", OPT_STRING(v.s)}, },
.priv = &(const int){STREAM_VIDEO} },
{ "af-command", cmd_filter_command, { {"label", OPT_STRING(v.s)},
{"command", OPT_STRING(v.s)},
{"argument", OPT_STRING(v.s)}, },
{ "af-command", cmd_filter_command,
{
{"label", OPT_STRING(v.s)},
{"command", OPT_STRING(v.s)},
{"argument", OPT_STRING(v.s)},
{"target", OPT_STRING(v.s), OPTDEF_STR("all"),
.flags = MP_CMD_OPT_ARG},
},
.priv = &(const int){STREAM_AUDIO} },
{ "vf-command", cmd_filter_command, { {"label", OPT_STRING(v.s)},
{"command", OPT_STRING(v.s)},
{"argument", OPT_STRING(v.s)}, },
{ "vf-command", cmd_filter_command,
{
{"label", OPT_STRING(v.s)},
{"command", OPT_STRING(v.s)},
{"argument", OPT_STRING(v.s)},
{"target", OPT_STRING(v.s), OPTDEF_STR("all"),
.flags = MP_CMD_OPT_ARG},
},
.priv = &(const int){STREAM_VIDEO} },
{ "ao-reload", cmd_ao_reload },