libavfilter/vsrc_color.c:69: error: Uninitialized Value
  The value read from frame_rate_q.den was never initialized.

libavfilter/vsrc_color.c:69:9: 
67. 
68.     if (av_parse_video_rate(&color->frame_rate, color->framerate_str) < 0 ||
69.         frame_rate_q.den <= 0 || frame_rate_q.num <= 0) {
            ^
70.         av_log(ctx, AV_LOG_ERROR, "Invalid frame rate: %s\n", color->framerate_str);
71.         return AVERROR(EINVAL);

static av_cold int color_init(AVFilterContext *ctx)
{
    ColorContext *color = ctx->priv;
    AVRational frame_rate_q;
    int ret;
    if (av_parse_video_size(&color->w, &color->h, color->size_str) < 0) {
        av_log(ctx, AV_LOG_ERROR, "Invalid frame size: %s\n", color->size_str);
        return AVERROR(EINVAL);
    }
    if (av_parse_video_rate(&color->frame_rate, color->framerate_str) < 0 ||
        frame_rate_q.den <= 0 || frame_rate_q.num <= 0) {
        av_log(ctx, AV_LOG_ERROR, "Invalid frame rate: %s\n", color->framerate_str);
        return AVERROR(EINVAL);
    }
    if ((ret = av_parse_color(color->color, color->color_str, -1, ctx)) < 0)
        return ret;
    return 0;
}
['static av_cold int color_init(AVFilterContext *ctx)\n{\n    ColorContext *color = ctx->priv;\n    AVRational frame_rate_q;\n    int ret;\n    if (av_parse_video_size(&color->w, &color->h, color->size_str) < 0) {\n        av_log(ctx, AV_LOG_ERROR, "Invalid frame size: %s\\n", color->size_str);\n        return AVERROR(EINVAL);\n    }\n    if (av_parse_video_rate(&color->frame_rate, color->framerate_str) < 0 ||\n        frame_rate_q.den <= 0 || frame_rate_q.num <= 0) {\n        av_log(ctx, AV_LOG_ERROR, "Invalid frame rate: %s\\n", color->framerate_str);\n        return AVERROR(EINVAL);\n    }\n    if ((ret = av_parse_color(color->color, color->color_str, -1, ctx)) < 0)\n        return ret;\n    return 0;\n}']