diff options
| -rw-r--r-- | doc/filters.texi | 4 | ||||
| -rw-r--r-- | libavfilter/f_metadata.c | 13 |
2 files changed, 17 insertions, 0 deletions
diff --git a/doc/filters.texi b/doc/filters.texi index 333f502083..e7927f07c0 100644 --- a/doc/filters.texi +++ b/doc/filters.texi @@ -21856,6 +21856,10 @@ Values are interpreted as floats, returns true if metadata value is greater than @item expr Values are interpreted as floats, returns true if expression from option @code{expr} evaluates to true. + +@item ends_with +Values are interpreted as strings, returns true if metadata value ends with +the @code{value} option string. @end table @item expr diff --git a/libavfilter/f_metadata.c b/libavfilter/f_metadata.c index 523a94d38c..97e5c669fe 100644 --- a/libavfilter/f_metadata.c +++ b/libavfilter/f_metadata.c @@ -54,6 +54,7 @@ enum MetadataFunction { METADATAF_EQUAL, METADATAF_GREATER, METADATAF_EXPR, + METADATAF_ENDS_WITH, METADATAF_NB }; @@ -107,6 +108,7 @@ static const AVOption filt_name##_options[] = { \ { "equal", NULL, 0, AV_OPT_TYPE_CONST, {.i64 = METADATAF_EQUAL }, 0, 3, FLAGS, "function" }, \ { "greater", NULL, 0, AV_OPT_TYPE_CONST, {.i64 = METADATAF_GREATER }, 0, 3, FLAGS, "function" }, \ { "expr", NULL, 0, AV_OPT_TYPE_CONST, {.i64 = METADATAF_EXPR }, 0, 3, FLAGS, "function" }, \ + { "ends_with", NULL, 0, AV_OPT_TYPE_CONST, {.i64 = METADATAF_ENDS_WITH }, 0, 0, FLAGS, "function" }, \ { "expr", "set expression for expr function", OFFSET(expr_str), AV_OPT_TYPE_STRING, {.str = NULL }, 0, 0, FLAGS }, \ { "file", "set file where to print metadata information", OFFSET(file_str), AV_OPT_TYPE_STRING, {.str=NULL}, 0, 0, FLAGS }, \ { NULL } \ @@ -122,6 +124,14 @@ static int starts_with(MetadataContext *s, const char *value1, const char *value return !strncmp(value1, value2, strlen(value2)); } +static int ends_with(MetadataContext *s, const char *value1, const char *value2) +{ + const int len1 = strlen(value1); + const int len2 = strlen(value2); + + return !strncmp(value1 + FFMAX(len1 - len2, 0), value2, len2); +} + static int equal(MetadataContext *s, const char *value1, const char *value2) { float f1, f2; @@ -212,6 +222,9 @@ static av_cold int init(AVFilterContext *ctx) case METADATAF_STARTS_WITH: s->compare = starts_with; break; + case METADATAF_ENDS_WITH: + s->compare = ends_with; + break; case METADATAF_LESS: s->compare = less; break; |