rawvideodec: make use of AV_OPT_TYPE_IMAGE_SIZE

Signed-off-by: Paul B Mahol <onemda@gmail.com>

libavformat/rawvideodec.c

@@ -27,7 +27,7 @@
 
 typedef struct RawVideoDemuxerContext {
     const AVClass *class;     /**< Class for private options. */
-    char *video_size;         /**< String describing video size, set by a private option. */
+    int width, height;        /**< Integers describing video size, set by a private option. */
     char *pixel_format;       /**< Set by a private option. */
     AVRational framerate;     /**< AVRational describing framerate, set by a private option. */
 } RawVideoDemuxerContext;
@@ -36,7 +36,6 @@ typedef struct RawVideoDemuxerContext {
 static int rawvideo_read_header(AVFormatContext *ctx)
 {
     RawVideoDemuxerContext *s = ctx->priv_data;
-    int width = 0, height = 0, ret = 0;
     enum AVPixelFormat pix_fmt;
     AVStream *st;
 
@@ -48,12 +47,6 @@ static int rawvideo_read_header(AVFormatContext *ctx)
 
     st->codec->codec_id = ctx->iformat->raw_codec_id;
 
-    if (s->video_size &&
-        (ret = av_parse_video_size(&width, &height, s->video_size)) < 0) {
-        av_log(ctx, AV_LOG_ERROR, "Couldn't parse video size.\n");
-        return ret;
-    }
-
     if ((pix_fmt = av_get_pix_fmt(s->pixel_format)) == AV_PIX_FMT_NONE) {
         av_log(ctx, AV_LOG_ERROR, "No such pixel format: %s.\n",
                s->pixel_format);
@@ -62,10 +55,10 @@ static int rawvideo_read_header(AVFormatContext *ctx)
 
     avpriv_set_pts_info(st, 64, s->framerate.den, s->framerate.num);
 
-    st->codec->width  = width;
-    st->codec->height = height;
+    st->codec->width  = s->width;
+    st->codec->height = s->height;
     st->codec->pix_fmt = pix_fmt;
-    st->codec->bit_rate = av_rescale_q(avpicture_get_size(st->codec->pix_fmt, width, height),
+    st->codec->bit_rate = av_rescale_q(avpicture_get_size(st->codec->pix_fmt, s->width, s->height),
                                        (AVRational){8,1}, st->time_base);
 
     return 0;
@@ -96,7 +89,7 @@ static int rawvideo_read_packet(AVFormatContext *s, AVPacket *pkt)
 #define OFFSET(x) offsetof(RawVideoDemuxerContext, x)
 #define DEC AV_OPT_FLAG_DECODING_PARAM
 static const AVOption rawvideo_options[] = {
-    { "video_size", "set frame size", OFFSET(video_size), AV_OPT_TYPE_STRING, {.str = NULL}, 0, 0, DEC },
+    { "video_size", "set frame size", OFFSET(width), AV_OPT_TYPE_IMAGE_SIZE, {.str = NULL}, 0, 0, DEC },
     { "pixel_format", "set pixel format", OFFSET(pixel_format), AV_OPT_TYPE_STRING, {.str = "yuv420p"}, 0, 0, DEC },
     { "framerate", "set frame rate", OFFSET(framerate), AV_OPT_TYPE_VIDEO_RATE, {.str = "25"}, 0, 0, DEC },
     { NULL },