AVCOL_SPC_SMPTE170M  446 libavcodec/options_table.h {"smpte170m",   "SMPTE 170 M", 0, AV_OPT_TYPE_CONST, {.i64 = AVCOL_SPC_SMPTE170M },   INT_MIN, INT_MAX, V|E|D, "colorspace_type"},
AVCOL_SPC_SMPTE170M 3814 libavcodec/vp9.c     case 3: ctx->colorspace = AVCOL_SPC_SMPTE170M; break;
AVCOL_SPC_SMPTE170M  356 libavfilter/vf_colormatrix.c         case AVCOL_SPC_SMPTE170M : source = COLOR_MODE_BT601     ; break;
AVCOL_SPC_SMPTE170M 1581 libavformat/movenc.c             track->enc->colorspace = AVCOL_SPC_SMPTE170M;
AVCOL_SPC_SMPTE170M   80 libavutil/frame.c         [AVCOL_SPC_SMPTE170M] = "smpte170m",