diff --git a/libavformat/img2dec.c b/libavformat/img2dec.c
index 2929d2ecb7..12cf46265b 100644
--- a/libavformat/img2dec.c
+++ b/libavformat/img2dec.c
@@ -52,7 +52,7 @@ typedef struct {
     int split_planes;       /**< use independent file for each Y, U, V plane */
     char path[1024];
     char *pixel_format;     /**< Set by a private option. */
-    char *video_size;       /**< Set by a private option. */
+    int width, height;      /**< Set by a private option. */
     AVRational framerate;   /**< Set by a private option. */
     int loop;
     enum { PT_GLOB_SEQUENCE, PT_GLOB, PT_SEQUENCE } pattern_type;
@@ -193,8 +193,7 @@ static int img_read_probe(AVProbeData *p)
 static int img_read_header(AVFormatContext *s1)
 {
     VideoDemuxData *s = s1->priv_data;
-    int first_index, last_index, ret = 0;
-    int width = 0, height = 0;
+    int first_index, last_index;
     AVStream *st;
     enum AVPixelFormat pix_fmt = AV_PIX_FMT_NONE;
 
@@ -211,12 +210,6 @@ static int img_read_header(AVFormatContext *s1)
                s->pixel_format);
         return AVERROR(EINVAL);
     }
-    if (s->video_size &&
-        (ret = av_parse_video_size(&width, &height, s->video_size)) < 0) {
-        av_log(s, AV_LOG_ERROR,
-               "Could not parse video size: %s.\n", s->video_size);
-        return ret;
-    }
 
     av_strlcpy(s->path, s1->filename, sizeof(s->path));
     s->img_number = 0;
@@ -232,9 +225,9 @@ static int img_read_header(AVFormatContext *s1)
 
     avpriv_set_pts_info(st, 60, s->framerate.den, s->framerate.num);
 
-    if (width && height) {
-        st->codec->width  = width;
-        st->codec->height = height;
+    if (s->width && s->height) {
+        st->codec->width  = s->width;
+        st->codec->height = s->height;
     }
 
     if (!s->is_pipe) {
@@ -449,7 +442,7 @@ static const AVOption options[] = {
     { "pixel_format", "set video pixel format",              OFFSET(pixel_format), AV_OPT_TYPE_STRING, {.str = NULL}, 0, 0,       DEC },
     { "start_number", "set first number in the sequence",    OFFSET(start_number), AV_OPT_TYPE_INT,    {.i64 = 0   }, 0, INT_MAX, DEC },
     { "start_number_range", "set range for looking at the first sequence number", OFFSET(start_number_range), AV_OPT_TYPE_INT, {.i64 = 5}, 1, INT_MAX, DEC },
-    { "video_size",   "set video size",                      OFFSET(video_size),   AV_OPT_TYPE_STRING, {.str = NULL}, 0, 0,       DEC },
+    { "video_size",   "set video size",                      OFFSET(width),        AV_OPT_TYPE_IMAGE_SIZE, {.str = NULL}, 0, 0,   DEC },
     { "frame_size",   "force frame size in bytes",           OFFSET(frame_size),   AV_OPT_TYPE_INT,    {.i64 = 0   }, 0, INT_MAX, DEC },
     { NULL },
 };