diff options
Diffstat (limited to 'filters/f_lavfi.c')
| -rw-r--r-- | filters/f_lavfi.c | 18 |
1 files changed, 18 insertions, 0 deletions
diff --git a/filters/f_lavfi.c b/filters/f_lavfi.c index afc9f2d445..3e447d16cf 100644 --- a/filters/f_lavfi.c +++ b/filters/f_lavfi.c @@ -987,6 +987,8 @@ static bool is_usable(const AVFilter *filter, int media_type) int nb_inputs = avfilter_pad_count(filter->inputs), nb_outputs = avfilter_pad_count(filter->outputs); #endif + if (nb_inputs > 1 || nb_outputs > 1) + return false; bool input_ok = filter->flags & AVFILTER_FLAG_DYNAMIC_INPUTS; bool output_ok = filter->flags & AVFILTER_FLAG_DYNAMIC_OUTPUTS; if (nb_inputs == 1) @@ -1124,6 +1126,22 @@ static void print_help_a(struct mp_log *log) print_help(log, AVMEDIA_TYPE_AUDIO, "audio", "--af=lavfi=[volume=0.5]"); } +const char **mp_get_lavfi_filters(void *talloc_ctx, int media_type) +{ + const char **filters = NULL; + void *iter = NULL; + int num = 0; + for (;;) { + const AVFilter *filter = av_filter_iterate(&iter); + if (!filter) + break; + if (is_usable(filter, media_type)) + MP_TARRAY_APPEND(talloc_ctx, filters, num, filter->name); + } + MP_TARRAY_APPEND(talloc_ctx, filters, num, NULL); + return filters; +} + #define OPT_BASE_STRUCT struct lavfi_user_opts const struct mp_user_filter_entry af_lavfi = { |