[FFmpeg-cvslog] avformat/matroskaenc: Check alpha_mode

[Reimar Döffinger]

On 24.08.2014, at 20:39, git at videolan.org (Michael Niedermayer) wrote:
> -        if ((tag = av_dict_get(st->metadata, "alpha_mode", NULL, 0)) ||
> -            (tag = av_dict_get( s->metadata, "alpha_mode", NULL, 0)) ||
> +        if (((tag = av_dict_get(st->metadata, "alpha_mode", NULL, 0)) && atoi(tag->value)) ||
> +            ((tag = av_dict_get( s->metadata, "alpha_mode", NULL, 0)) && atoi(tag->value)) ||

Not sure it matters, but wouldn't value == NULL have worked before but would crash now?