diff options
Diffstat (limited to 'filters')
| -rw-r--r-- | filters/f_lavfi.c | 51 | ||||
| -rw-r--r-- | filters/f_lavfi.h | 6 | ||||
| -rw-r--r-- | filters/user_filters.c | 26 |
3 files changed, 79 insertions, 4 deletions
diff --git a/filters/f_lavfi.c b/filters/f_lavfi.c index b3f74b508b..745d1699a7 100644 --- a/filters/f_lavfi.c +++ b/filters/f_lavfi.c @@ -903,15 +903,58 @@ static bool is_usable(const AVFilter *filter, int media_type) is_single_media_only(filter->outputs, media_type); } -static void print_help(struct mp_log *log, int mediatype, char *name, char *ex) +static void dump_list(struct mp_log *log, int media_type) { - mp_info(log, "List of libavfilter filters:\n"); + mp_info(log, "Available libavfilter filters:\n"); for (const AVFilter *filter = avfilter_next(NULL); filter; filter = avfilter_next(filter)) { - if (is_usable(filter, mediatype)) - mp_info(log, " %-16s %s\n", filter->name, filter->description); + if (is_usable(filter, media_type)) + mp_info(log, " %-16s %s\n", filter->name, filter->description); } +} + +void print_lavfi_help(struct mp_log *log, const char *name, int media_type) +{ + const AVFilter *f = avfilter_get_by_name(name); + if (!f) { + mp_err(log, "Filter '%s' not found.\n", name); + return; + } + if (!is_usable(f, media_type)) { + mp_err(log, "Filter '%s' is not usable in this context (wrong media \n" + "types or wrong number of inputs/outputs).\n", name); + } + mp_info(log, "Options:\n\n"); + const AVClass *class = f->priv_class; + // av_opt_next() requires this for some retarded incomprehensible reason. + const AVClass **c = &class; + int offset= -1; + int count = 0; + for (const AVOption *o = av_opt_next(c, 0); o; o = av_opt_next(c, o)) { + // This is how libavfilter (at the time) decided to assign positional + // options (called "shorthand" in the libavfilter code). So we + // duplicate it exactly. + if (o->type == AV_OPT_TYPE_CONST || o->offset == offset) + continue; + offset = o->offset; + + mp_info(log, " %s\n", o->name); + count++; + } + mp_info(log, "\nTotal: %d options\n", count); +} + +void print_lavfi_help_list(struct mp_log *log, int media_type) +{ + dump_list(log, media_type); + mp_info(log, "\nIf libavfilter filters clash with builtin mpv filters,\n" + "prefix them with lavfi- to select the libavfilter one.\n\n"); +} + +static void print_help(struct mp_log *log, int mediatype, char *name, char *ex) +{ + dump_list(log, mediatype); mp_info(log, "\n" "This lists %s->%s filters only. Refer to\n" "\n" diff --git a/filters/f_lavfi.h b/filters/f_lavfi.h index 7efc96c3de..089d4aee1f 100644 --- a/filters/f_lavfi.h +++ b/filters/f_lavfi.h @@ -28,3 +28,9 @@ struct mp_lavfi *mp_lavfi_create_filter(struct mp_filter *parent, enum mp_frame_type type, bool bidir, char **graph_opts, const char *filter, char **filter_opts); + +// Print libavfilter list for --vf/--af +void print_lavfi_help_list(struct mp_log *log, int media_type); + +// Print libavfilter help for the given filter +void print_lavfi_help(struct mp_log *log, const char *name, int media_type); diff --git a/filters/user_filters.c b/filters/user_filters.c index 30358a4a94..89d7743d53 100644 --- a/filters/user_filters.c +++ b/filters/user_filters.c @@ -1,3 +1,5 @@ +#include <libavutil/avutil.h> + #include "config.h" #include "common/common.h" @@ -36,11 +38,23 @@ static bool get_af_desc(struct m_obj_desc *dst, int index) return get_desc_from(af_list, MP_ARRAY_SIZE(af_list), dst, index); } +static void print_af_help_list(struct mp_log *log) +{ + print_lavfi_help_list(log, AVMEDIA_TYPE_AUDIO); +} + +static void print_af_lavfi_help(struct mp_log *log, const char *name) +{ + print_lavfi_help(log, name, AVMEDIA_TYPE_AUDIO); +} + const struct m_obj_list af_obj_list = { .get_desc = get_af_desc, .description = "audio filters", .allow_disable_entries = true, .allow_unknown_entries = true, + .print_help_list = print_af_help_list, + .print_unknown_entry_help = print_af_lavfi_help, }; // --vf option @@ -72,11 +86,23 @@ static bool get_vf_desc(struct m_obj_desc *dst, int index) return get_desc_from(vf_list, MP_ARRAY_SIZE(vf_list), dst, index); } +static void print_vf_help_list(struct mp_log *log) +{ + print_lavfi_help_list(log, AVMEDIA_TYPE_VIDEO); +} + +static void print_vf_lavfi_help(struct mp_log *log, const char *name) +{ + print_lavfi_help(log, name, AVMEDIA_TYPE_VIDEO); +} + const struct m_obj_list vf_obj_list = { .get_desc = get_vf_desc, .description = "video filters", .allow_disable_entries = true, .allow_unknown_entries = true, + .print_help_list = print_vf_help_list, + .print_unknown_entry_help = print_vf_lavfi_help, }; // Create a bidir, single-media filter from command line arguments. |