PRORES宽高比格式，暂不支持。
# the aspect ratio of PRORES HI_VENC_PRORES_ASPECT_RATIO_UNKNOWN = 0 HI_VENC_PRORES_ASPECT_RATIO_SQUARE = 1 HI_VENC_PRORES_ASPECT_RATIO_4_3 = 2 HI_VENC_PRORES_ASPECT_RATIO_16_9 = 3 HI_VENC_PRORES_ASPECT_RATIO_BUTT = 4