ffmpeg | branch: master | Tobias Rapp <t.r...@noa-archive.com> | Thu Feb 11 13:35:20 2016 +0100| [6889deba68fcc3d9f1015f10392dea38b2fcd028] | committer: Paul B Mahol
avfilter/f_metadata: add starts_with string function Signed-off-by: Tobias Rapp <t.r...@noa-archive.com> > http://git.videolan.org/gitweb.cgi/ffmpeg.git/?a=commit;h=6889deba68fcc3d9f1015f10392dea38b2fcd028 --- doc/filters.texi | 4 ++++ libavfilter/f_metadata.c | 10 ++++++++++ 2 files changed, 14 insertions(+) diff --git a/doc/filters.texi b/doc/filters.texi index 8f4dcea..8264498 100644 --- a/doc/filters.texi +++ b/doc/filters.texi @@ -8500,6 +8500,10 @@ Can be one of following: Values are interpreted as strings, returns true if @code{value} is same as metadata value up to N chars as set in @code{length} option. +@item starts_with +Values are interpreted as strings, returns true if metadata value starts with +the @code{value} option string. + @item less Values are interpreted as floats, returns true if metadata value is less than @code{value}. diff --git a/libavfilter/f_metadata.c b/libavfilter/f_metadata.c index 9246a2a..6c9317a 100644 --- a/libavfilter/f_metadata.c +++ b/libavfilter/f_metadata.c @@ -49,6 +49,7 @@ enum MetadataMode { enum MetadataFunction { METADATAF_STRING, + METADATAF_STARTS_WITH, METADATAF_LESS, METADATAF_EQUAL, METADATAF_GREATER, @@ -102,6 +103,7 @@ static const AVOption filt_name##_options[] = { \ { "value", "set metadata value", OFFSET(value), AV_OPT_TYPE_STRING, {.str = NULL }, 0, 0, FLAGS }, \ { "function", "function for comparing values", OFFSET(function), AV_OPT_TYPE_INT, {.i64 = 0 }, 0, METADATAF_NB-1, FLAGS, "function" }, \ { "string", NULL, 0, AV_OPT_TYPE_CONST, {.i64 = METADATAF_STRING }, 0, 3, FLAGS, "function" }, \ + { "starts_with", NULL, 0, AV_OPT_TYPE_CONST, {.i64 = METADATAF_STARTS_WITH }, 0, 0, FLAGS, "function" }, \ { "less", NULL, 0, AV_OPT_TYPE_CONST, {.i64 = METADATAF_LESS }, 0, 3, FLAGS, "function" }, \ { "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" }, \ @@ -117,6 +119,11 @@ static int string(MetadataContext *s, const char *value1, const char *value2, si return !strncmp(value1, value2, length); } +static int starts_with(MetadataContext *s, const char *value1, const char *value2, size_t length) +{ + return !strncmp(value1, value2, strlen(value2)); +} + static int equal(MetadataContext *s, const char *value1, const char *value2, size_t length) { float f1, f2; @@ -201,6 +208,9 @@ static av_cold int init(AVFilterContext *ctx) case METADATAF_STRING: s->compare = string; break; + case METADATAF_STARTS_WITH: + s->compare = starts_with; + break; case METADATAF_LESS: s->compare = less; break; _______________________________________________ ffmpeg-cvslog mailing list ffmpeg-cvslog@ffmpeg.org http://ffmpeg.org/mailman/listinfo/ffmpeg-cvslog
