diff options
Diffstat (limited to 'libavfilter/graphparser.c')
-rw-r--r-- | libavfilter/graphparser.c | 29 |
1 files changed, 29 insertions, 0 deletions
diff --git a/libavfilter/graphparser.c b/libavfilter/graphparser.c index ebd9cc929c..d2d31653a9 100644 --- a/libavfilter/graphparser.c +++ b/libavfilter/graphparser.c @@ -349,6 +349,30 @@ static int parse_outputs(const char **buf, AVFilterInOut **curr_inputs, #else #define log_ctx NULL #endif + +static int parse_sws_flags(const char **buf, AVFilterGraph *graph) +{ + char *p = strchr(*buf, ';'); + + if (strncmp(*buf, "sws_flags=", 10)) + return 0; + + if (!p) { + av_log(log_ctx, AV_LOG_ERROR, "sws_flags not terminated with ';'.\n"); + return AVERROR(EINVAL); + } + + *buf += 4; // keep the 'flags=' part + + av_freep(&graph->scale_sws_opts); + if (!(graph->scale_sws_opts = av_mallocz(p - *buf + 1))) + return AVERROR(ENOMEM); + av_strlcpy(graph->scale_sws_opts, *buf, p - *buf + 1); + + *buf = p + 1; + return 0; +} + int avfilter_graph_parse2(AVFilterGraph *graph, const char *filters, AVFilterInOut **inputs, AVFilterInOut **outputs) @@ -358,6 +382,11 @@ int avfilter_graph_parse2(AVFilterGraph *graph, const char *filters, AVFilterInOut *curr_inputs = NULL, *open_inputs = NULL, *open_outputs = NULL; + filters += strspn(filters, WHITESPACES); + + if ((ret = parse_sws_flags(&filters, graph)) < 0) + goto fail; + do { AVFilterContext *filter; filters += strspn(filters, WHITESPACES); |