avformat/segment: use AV_OPT_TYPE_DICT for segment_format_options

Signed-off-by: Marton Balint <cus@passwd.hu>

libavformat/segment.c

@@ -75,7 +75,6 @@ typedef struct SegmentContext {
     ff_const59 AVOutputFormat *oformat;
     AVFormatContext *avf;
     char *format;              ///< format to use for output segment files
-    char *format_options_str;  ///< format options to use for output segment files
     AVDictionary *format_options;
     char *list;            ///< filename for the segment list file
     int   list_flags;      ///< flags affecting list generation
@@ -720,15 +719,6 @@ static int seg_init(AVFormatContext *s)
         }
     }
 
-    if (seg->format_options_str) {
-        ret = av_dict_parse_string(&seg->format_options, seg->format_options_str, "=", ":", 0);
-        if (ret < 0) {
-            av_log(s, AV_LOG_ERROR, "Could not parse format options list '%s'\n",
-                   seg->format_options_str);
-            return ret;
-        }
-    }
-
     if (seg->list) {
         if (seg->list_type == LIST_TYPE_UNDEFINED) {
             if      (av_match_ext(seg->list, "csv" )) seg->list_type = LIST_TYPE_CSV;
@@ -791,7 +781,7 @@ static int seg_init(AVFormatContext *s)
     ret = avformat_init_output(oc, &options);
     if (av_dict_count(options)) {
         av_log(s, AV_LOG_ERROR,
-               "Some of the provided format options in '%s' are not recognized\n", seg->format_options_str);
+               "Some of the provided format options are not recognized\n");
         av_dict_free(&options);
         return AVERROR(EINVAL);
     }
@@ -1017,7 +1007,6 @@ fail:
     if (seg->list)
         ff_format_io_close(s, &seg->list_pb);
 
-    av_dict_free(&seg->format_options);
     av_opt_free(seg);
     av_freep(&seg->times);
     av_freep(&seg->frames);
@@ -1060,7 +1049,7 @@ static int seg_check_bitstream(struct AVFormatContext *s, const AVPacket *pkt)
 static const AVOption options[] = {
     { "reference_stream",  "set reference stream", OFFSET(reference_stream_specifier), AV_OPT_TYPE_STRING, {.str = "auto"}, CHAR_MIN, CHAR_MAX, E },
     { "segment_format",    "set container format used for the segments", OFFSET(format),  AV_OPT_TYPE_STRING, {.str = NULL},  0, 0,       E },
-    { "segment_format_options", "set list of options for the container format used for the segments", OFFSET(format_options_str), AV_OPT_TYPE_STRING, {.str = NULL}, 0, 0, E },
+    { "segment_format_options", "set list of options for the container format used for the segments", OFFSET(format_options), AV_OPT_TYPE_DICT, {.str = NULL}, 0, 0, E },
     { "segment_list",      "set the segment list filename",              OFFSET(list),    AV_OPT_TYPE_STRING, {.str = NULL},  0, 0,       E },
     { "segment_header_filename", "write a single file containing the header", OFFSET(header_filename), AV_OPT_TYPE_STRING, {.str = NULL}, 0, 0, E },