Currently if a pattern is given we look for up to the fifth file name in
the sequence. This option sets that limit to an arbitrary number.
---
libavformat/img2dec.c | 9 ++++++---
1 file changed, 6 insertions(+), 3 deletions(-)
diff --git a/libavformat/img2dec.c b/libavformat/img2dec.c
index b4b9723..2c14e01 100644
--- a/libavformat/img2dec.c
+++ b/libavformat/img2dec.c
@@ -40,6 +40,7 @@ typedef struct {
char *video_size; /**< Set by a private option. */
char *framerate; /**< Set by a private option. */
int loop;
+ int startat;
} VideoDemuxData;
static const int sizes[][2] = {
@@ -70,13 +71,13 @@ static int infer_size(int *width_ptr, int *height_ptr, int
size)
/* return -1 if no image found */
static int find_image_range(int *pfirst_index, int *plast_index,
- const char *path)
+ const char *path, int max_start)
{
char buf[1024];
int range, last_index, range1, first_index;
/* find the first image */
- for(first_index = 0; first_index < 5; first_index++) {
+ for(first_index = 0; first_index < max_start; first_index++) {
if (av_get_frame_filename(buf, sizeof(buf), path, first_index) < 0){
*pfirst_index =
*plast_index = 1;
@@ -182,7 +183,8 @@ static int read_header(AVFormatContext *s1)
}
if (!s->is_pipe) {
- if (find_image_range(&first_index, &last_index, s->path) < 0)
+ if (find_image_range(&first_index, &last_index, s->path,
+ FFMAX(s->startat, 5)) < 0)
return AVERROR(ENOENT);
s->img_first = first_index;
s->img_last = last_index;
@@ -283,6 +285,7 @@ static const AVOption options[] = {
{ "video_size", "", OFFSET(video_size), AV_OPT_TYPE_STRING, {.str =
NULL}, 0, 0, DEC },
{ "framerate", "", OFFSET(framerate), AV_OPT_TYPE_STRING, {.str =
"25"}, 0, 0, DEC },
{ "loop", "", OFFSET(loop), AV_OPT_TYPE_INT, {.dbl =
0}, 0, 1, DEC },
+ { "startat", "first number in the sequence", OFFSET(startat),
AV_OPT_TYPE_INT, {.dbl = 1}, 1, INT_MAX, DEC },
{ NULL },
};
--
1.7.9.5
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