@@ -353,6 +353,8 @@ Set segment duration to @var{t} seconds.

 Generate also a listfile named @var{name}.

 @item segment_list_size @var{size}

 Overwrite the listfile once it reaches @var{size} entries.

+@item segment_wrap @var{limit}

+Wrap around segment index once it reaches @var{limit}.

 @end table

 @example

@@ -39,6 +39,7 @@ typedef struct {

     char *list;            /**< Set by a private option. */

     float time;            /**< Set by a private option. */

     int  size;             /**< Set by a private option. */

+    int  wrap;             /**< Set by a private option. */

     int64_t offset_time;

     int64_t recording_time;

     int has_video;

@@ -51,6 +52,9 @@ static int segment_start(AVFormatContext *s)

     AVFormatContext *oc = c->avf;

     int err = 0;

+    if (c->wrap)

+        c->number %= c->wrap;

+

     if (av_get_frame_filename(oc->filename, sizeof(oc->filename),

                               s->filename, c->number++) < 0)

         return AVERROR(EINVAL);

@@ -206,12 +210,11 @@ static int seg_write_packet(AVFormatContext *s, AVPacket *pkt)

         if (seg->list) {

             avio_printf(seg->pb, "%s\n", oc->filename);

             avio_flush(seg->pb);

-            if (!(seg->number % seg->size)) {

+            if (seg->size && !(seg->number % seg->size)) {

                 avio_close(seg->pb);

                 if ((ret = avio_open2(&seg->pb, seg->list, AVIO_FLAG_WRITE,

                                       &s->interrupt_callback, NULL)) < 0)

                     goto fail;

-

             }

         }

     }

@@ -250,6 +253,7 @@ static const AVOption options[] = {

     { "segment_time",      "segment length in seconds",               OFFSET(time),    AV_OPT_TYPE_FLOAT,  {.dbl = 2},     0, FLT_MAX, E },

     { "segment_list",      "output the segment list",                 OFFSET(list),    AV_OPT_TYPE_STRING, {.str = NULL},  0, 0,       E },

     { "segment_list_size", "maximum number of playlist entries",      OFFSET(size),    AV_OPT_TYPE_INT,    {.dbl = 5},     0, INT_MAX, E },

+    { "segment_wrap",      "number after which the index wraps",      OFFSET(wrap),    AV_OPT_TYPE_INT,    {.dbl = 0},     0, INT_MAX, E },

     { NULL },

 };